| 347568 |
14-May-2019 |
kib |
MFC r347566:
Mitigations for Microarchitectural Data Sampling.
Reference: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00233.html
Security: CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2019-11091
Security: FreeBSD-SA-19:07.mds
Reviewed by: jhb
Tested by: emaste, lwhsu
Approved by: so (gtetlow) |
| 344230 |
17-Feb-2019 |
kib |
MFC r343723:
i386: Do not ever store to other-CPU counter64 slot. |
| 344053 |
12-Feb-2019 |
kib |
Fix PAE modules build on i386.
Reimplement PAE version of pte_load() by copying/pasting the
atomic_load_acq_64_i586() into it definition. pmap_kextract() is defined
as inline and uses pte_load() in its body, so the pte_load() should be
available when pmap.h is included. On stable/11, the atomic inlines are
not exposed to modules.
This is a direct commit to stable/11.
Reported by: dim
Sponsored by: The FreeBSD Foundation |
| 342927 |
11-Jan-2019 |
kib |
MFC r342769, r342775:
i386: Use atomic 64bit load to read PDE value from PAE pagetables in
pmap_kextract(). |
| 340270 |
08-Nov-2018 |
jhb |
MFC 340164,340168,340170: Add custom cpu_lock_delay() for x86.
340164:
Add a KPI for the delay while spinning on a spin lock.
Replace a call to DELAY(1) with a new cpu_lock_delay() KPI. Currently
cpu_lock_delay() is defined to DELAY(1) on all platforms. However,
platforms with a DELAY() implementation that uses spin locks should
implement a custom cpu_lock_delay() doesn't use locks.
340168:
Add a delay_tsc() static function for when DELAY() uses the TSC.
This uses slightly simpler logic than the existing code by using the
full 64-bit counter and thus not having to worry about counter
overflow.
340170:
Add a custom implementation of cpu_lock_delay() for x86.
Avoid using DELAY() since it can try to use spin locks on CPUs without
a P-state invariant TSC. For cpu_lock_delay(), always use the TSC if
it exists (even if it is not P-state invariant) to delay for a
microsecond. If the TSC does not exist, read from I/O port 0x84 to
delay instead.
PR: 228768 |
| 339872 |
29-Oct-2018 |
jhb |
MFC 338101: Merge amd64 and i386 <machine/intr_machdep.h> headers. |
| 339769 |
26-Oct-2018 |
mmacy |
fix i386 breakage caused by r339767 |
| 339315 |
11-Oct-2018 |
jhb |
MFC 338055: Remove some vestiges of IPI_LAZYPMAP on i386.
The support for lazy pmap invalidations on i386 was removed in r281707.
This removes the constant for the IPI and stops accounting for it when
sizing the interrupt count arrays. |
| 338691 |
14-Sep-2018 |
jhb |
MFC 332454,334009,334122: Various fixes for x86 debug exceptions.
332454:
Fix PSL_T inheritance on exec for x86.
The miscellaneous x86 sysent->sv_setregs() implementations tried to
migrate PSL_T from the previous program to the new executed one, but
they evaluated regs->tf_eflags after the whole regs structure was
bzeroed. Make this functional by saving PSL_T value before zeroing.
Note that if the debugger is not attached, executing the first
instruction in the new program with PSL_T set results in SIGTRAP, and
since all intercepted signals are reset to default dispostion on
exec(2), this means that non-debugged process gets killed immediately
if PSL_T is inherited. In particular, since suid images drop
P_TRACED, attempt to set PSL_T for execution of such program would
kill the process.
Another issue with userspace PSL_T handling is that it is reset by
trap(). It is reasonable to clear PSL_T when entering SIGTRAP
handler, to allow the signal to be handled without recursion or
delivery of blocked fault. But it is not reasonable to return back to
the normal flow with PSL_T cleared. This is too late to change, I
think.
334009:
Cleanups related to debug exceptions on x86.
- Add constants for fields in DR6 and the reserved fields in DR7. Use
these constants instead of magic numbers in most places that use DR6
and DR7.
- Refer to T_TRCTRAP as "debug exception" rather than a "trace trap"
as it is not just for trace exceptions.
- Always read DR6 for debug exceptions and only clear TF in the flags
register for user exceptions where DR6.BS is set.
- Clear DR6 before returning from a debug exception handler as
recommended by the SDM dating all the way back to the 386. This
allows debuggers to determine the cause of each exception. For
kernel traps, clear DR6 in the T_TRCTRAP case and pass DR6 by value
to other parts of the handler (namely, user_dbreg_trap()). For user
traps, wait until after trapsignal to clear DR6 so that userland
debuggers can read DR6 via PT_GETDBREGS while the thread is stopped
in trapsignal().
334122:
x86: stop unconditionally clearing PSL_T on the trace trap.
We certainly should clear PSL_T when calling the SIGTRAP signal
handler, which is already done by all x86 sendsig(9) ABI code. On the
other hand, there is no obvious reason why PSL_T needs to be cleared
when returning from the signal handler. For instance, Linux allows
userspace to set PSL_T and keep tracing enabled for the desired
period. There are userspace programs which would use PSL_T if we make
it possible, for instance sbcl.
Remember if PSL_T was set by PT_STEP or PT_SETSTEP by mean of TDB_STEP
flag, and only clear it when the flag is set. |
| 338588 |
11-Sep-2018 |
hselasky |
Fix compile warning about missing prototype when WANT_FUNCTIONS is defined.
This is a direct commit.
Found by: bde @
Sponsored by: Mellanox Technologies |
| 338419 |
01-Sep-2018 |
kib |
MFC r338312:
Unify amd64 and i386 vmspace0 pmap activation. |
| 337893 |
16-Aug-2018 |
hselasky |
MFC r337529:
Implement missing atomic_fcmpset_XXX() support for i386.
Sponsored by: Mellanox Technologies |
| 335657 |
26-Jun-2018 |
avg |
MFC r334204,r334338: re-synchronize TSC-s on SMP systems after resume |
| 334771 |
07-Jun-2018 |
dim |
MFC r334445:
Resolve conflicts between macros in fenv.h and ieeefp.h
This is a follow-up to r321483, which disabled -Wmacro-redefined for
some lib/msun tests.
If an application included both fenv.h and ieeefp.h, several macros such
as __fldcw(), __fldenv() were defined in both headers, with slightly
different arguments, leading to conflicts.
Fix this by putting all the common macros in the machine-specific
versions of ieeefp.h. Where needed, update the arguments in places
where the macros are invoked.
This also slightly reduces the differences between the amd64 and i386
versions of ieeefp.h.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D15633 |
| 334762 |
07-Jun-2018 |
hselasky |
MFC r334320 and r334328:
Implement atomic_add_64() and atomic_subtract_64() for the i386 target.
While at it add missing _acq_ and _rel_ variants for 64-bit atomic
operations under i386.
Reviewed by: kib @
Sponsored by: Mellanox Technologies |
| 334152 |
24-May-2018 |
kib |
MFC r334004:
Add Intel Spec Store Bypass Disable control.
This also includes the i386/include/pcpu.h part of the r334018.
Security: CVE-2018-3639
Approved by: re (gjb) |
| 333626 |
15-May-2018 |
kib |
MFC r333504:
Remove dead declaration.
Approved by: re (marius) |
| 333053 |
27-Apr-2018 |
kib |
MFC r332970:
Use IS_BSP() macro.
MFC r332989 (by lwhsu):
Add i386 IS_BSP(). |
| 332074 |
05-Apr-2018 |
rgrimes |
MFC: r304147(bde)
Remove duplicate definition of get_pcb_td(). gcc works for detecting
this error.
Approved by: bde (mentor) |
| 331722 |
29-Mar-2018 |
eadler |
Revert r330897:
This was intended to be a non-functional change. It wasn't. The commit
message was thus wrong. In addition it broke arm, and merged crypto
related code.
Revert with prejudice.
This revert skips files touched in r316370 since that commit was since
MFCed. This revert also skips files that require $FreeBSD$ property
changes.
Thank you to those who helped me get out of this mess including but not
limited to gonzo, kevans, rgrimes.
Requested by: gjb (re) |
| 330897 |
14-Mar-2018 |
eadler |
Partial merge of the SPDX changes
These changes are incomplete but are making it difficult
to determine what other changes can/should be merged.
No objections from: pfg |
| 329383 |
16-Feb-2018 |
markj |
MFC r315718, r316031:
Add support for 8- and 16-bit atomic_(f)cmpset to x86. |
| 328386 |
25-Jan-2018 |
pkelsey |
MFC r316648:
Corrected misspelled versions of rendezvous.
The MFC maintains smp_no_rendevous_barrier() as a symbol alias of
smp_no_rendezvous_barrier().
__FreeBSD_version bumped to indicate presence of the new name
smp_no_rendezvous_barrier().
Reviewed by: gnn, jhb (email), kib
Differential Revision: https://reviews.freebsd.org/D10313 |
| 327195 |
26-Dec-2017 |
kib |
MFC r326971, r327047 (by ian), r327053 (by marius), r327074, r327097:
Add atomic_load(9) and atomic_store(9) operations. |
| 326514 |
04-Dec-2017 |
hselasky |
MFC r326161:
Implement atomic_fetchadd_64() for i386. This function is needed by the
atomic64 header file in the LinuxKPI for i386.
Reviewed by: kib
Sponsored by: Mellanox Technologies |
| 324855 |
22-Oct-2017 |
kib |
MFC r323772, r324302-r324308, r324310, r324313, r324315, r324326, r324330,
r324334, r324354-r324355, r324366, r324432-r324433, r324437-r324439:
Fixes and improvements for x86 LDT handling. |
| 324299 |
05-Oct-2017 |
kib |
MFC r324079:
Do not return from interrupt using the POP_FRAME;iret instruction
sequence, always jump to doreti. |
| 322490 |
14-Aug-2017 |
sephe |
MFC 322323 by jkim
Split identify_cpu() into two functions for amd64 as we do for i386. This
reduces diff between amd64 and i386. Also, it fixes a regression introduced
in r322076, i.e., identify_hypervisor() failed to identify some hypervisors.
This function assumes cpu_feature2 is already initialized.
Reported by: dexuan
Tested by: dexuan |
| 321324 |
21-Jul-2017 |
kib |
MFC r319871:
Make struct syscall_args visible to userspace compilation environment
from machine/proc.h, consistently on all architectures. |
| 320429 |
28-Jun-2017 |
alc |
MFC r314310
Refine the fix from r312954. Specifically, add a new PDE-only flag,
PG_PROMOTED, that indicates whether lingering 4KB page mappings might
need to be flushed on a PDE change that restricts or destroys a 2MB
page mapping. This flag allows the pmap to avoid range invalidations
that are both unnecessary and costly.
Approved by: re (kib) |
| 318576 |
20-May-2017 |
kib |
MFC efivar(8) (by imp):
List of revisions merged:
r307070
r307071
r307072
r307074
r307189
r307224
r307339
r307390
r307391
r309776
r314231
r314232
r314615
r314616
r314617
r314618
r314619
r314620
r314621
r314623
r314890
r314925
r314926
r314927
r314928
r315770
r315771
Discussed with: gjb (re), imp
Sponsored by: The FreeBSD Foundation |
| 317004 |
16-Apr-2017 |
mmel |
MFC r303261,r315059:
r303261:
Add more UEFI/e820 memory types from latest specifications.
r315059:
Split overbloated machep.c to multiple files and do basic cleanup of these
fragments. |
| 315371 |
16-Mar-2017 |
mjg |
MFC r311169,r311898,r312925,r312973,r312975,r313007,r313040,r313080,
r313254,r313341
amd64: add atomic_fcmpset
==
sparc64: add atomic_fcmpset
==
Implement atomic_fcmpset_* for arm and arm64.
==
Add atomic_fcmpset_*() inlines for powerpc
Summary:
atomic_fcmpset_*() is analogous to atomic_cmpset(), but saves off the read value
from the target memory location into the 'old' pointer in the case of failure.
==
i386: add atomic_fcmpset
==
Don't retry a lost reservation in atomic_fcmpset()
The desired behavior of atomic_fcmpset_() is to always exit on error. Instead
of retrying on lost reservation, leave the retry to the caller, and return
==
Add atomic_fcmpset_*() inlines for MIPS
atomic_fcmpset_*() is analogous to atomic_cmpset(), but saves off the
read value from the target memory location into the 'old' pointer.
==
i386: fixup fcmpset
An incorrect output specifier was used which worked with clang by accident,
but breaks with the in-tree gcc version.
While here plug a whitespace nit.
==
Implement atomic_fcmpset_*() for RISC-V.
==
Use 64bit store instruction in atomic_fcmpset_64. |
| 314210 |
24-Feb-2017 |
kib |
MFC r313154:
For i386, remove config options CPU_DISABLE_CMPXCHG, CPU_DISABLE_SSE
and device npx. |
| 313862 |
17-Feb-2017 |
jah |
MFC r312952:
Implement get_pcpu() for i386 and use it to replace pcpu_find(curcpu)
in the i386 pmap.
The curcpu macro loads the per-cpu data pointer as its first step,
so the remaining steps of pcpu_find(curcpu) are circular. |
| 313148 |
03-Feb-2017 |
kib |
MFC r312555:
Use SFENCE for ordering CLFLUSHOPT. |
| 311653 |
07-Jan-2017 |
jah |
MFC r310481:
Move the objects used to create temporary mappings for i386 pmap zero
and copy operations to the MD PCPU region. Change sysmap
initialization to only allocate KVA pages for CPUs that are actually
present. As a minor optimization, this also prevents false sharing
between adjacent sysmap objects since the pcpu struct is already
cacheline-aligned.
While here, move pc_qmap_addr initialization for the BSP into
pmap_bootstrap(), which allows use of pmap_quick* functions during
early boot.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D8833 |
| 308433 |
08-Nov-2016 |
jhb |
MFC 305836: Remove 'cpu' and 'cpu_class' on amd64.
The 'cpu' and 'cpu_class' variables were always set to the same value
on amd64 and are legacy holdovers from i386. Remove them entirely on
amd64.
Requested by: kib (MFC) |
| 308418 |
07-Nov-2016 |
kib |
Merge bde improvements for ddb on x86, mostly for single-stepping and
vm86 mode.
MFC r304085 (by bde):
Fix the variables $esp, $ds, $es, $fs, $gs and $ss in vm86 mode. Fix
PC_REGS() so that printing of instructions works in some useful cases.
MFC r304962 (by bde):
Expand error messages: print symbol names, parentheses and shift tokens,
and negative shift counts. Fix error messages.
MFC r305612 (by bde):
Fix single-stepping of instructions emulated by vm86.
MFC r305661 (by bde):
Give the full syntax of the 'count' arg for all commmands that support
it. Give the full syntax of the 'addr' arg for these commands and some
others. Rename it from 'address' for the generic command. Fix
description of how 'count' is supposed to work for the 'break'
command.
Don't (mis)describe the syntax of the comma for the 'step' command.
Expand the description for the generic command.
Give the full syntax for the 'examine' command. It was also missing
the possible values for the modifier.
MFC r305663 (by bde):
Fix stopping when the specified breakpoint count is reached.
MFC r305665 (by bde):
Pass the trap type and code down from db_trap() to db_stop_at_pc() so
that the latter can easily determine what the trap type actually is
after callers are fixed to encode the type unambigously.
MFC r305807 (by bde):
Use the MI macro TRAPF_USERMODE() instead of open-coded checks for
SEL_UPL and sometimes PSL_VM. Fix logic errors in treating vm86
bioscall mode as kernel mode. The main place checked all the
necessary flags, but put the necessary parentheses for the PSL_VM and
PCB_VM86CALL checks in the wrong place.
MFC r305811 (by bz):
Try to fix LINT builds after r305807.
MFC r305840 (by bde):
Abort single stepping in ddb if the trap is not for single-stepping.
MFC r305862 (by bde):
Ifdef the new dr6 variable for KDB.
MFC r305864 (by bde):
Statically initialize the run mode to the one that will become current
on first entry. Don't reset to the run mode to STEP_NONE when
stopping, and remove STEP_NONE.
MFC r305865 (by bde):
Fix decoding of tf_rsp on amd64, and move TF_HAS_STACKREGS() to the
i386-only section, and fix a comment about the amd64 kernel trapframe
not having stackregs.
MFC r305897 (by bde):
Silently ignore unexpected single-step traps.
MFC r306311 (by bde):
Determine the operand/address size of %cs in a new function
db_segsize(). Use db_segsize() to set the default operand/address
size for disassembling.
Fix db_print_loc_and_inst() to ask for the normal format and not the
alternate in normal operation. Use db_segsize() to avoid trying to
print a garbage stack trace if %cs is 16 bits. |
| 307856 |
24-Oct-2016 |
kib |
MFC r306680:
Reduce the cost of TLB invalidation on x86 by using per-CPU completion flags. |
| 305672 |
09-Sep-2016 |
jhb |
MFC 304637: Fix build for !SMP kernels after the Xen MSIX workaround.
Move msix_disable_migration under #ifdef SMP since it doesn't make sense
for !SMP kernels.
PR: 212014 |
| 302895 |
15-Jul-2016 |
royger |
MFC r302635:
xen: automatically disable MSI-X interrupt migration
Approved by: re (kib) |
| 302408 |
08-Jul-2016 |
gjb |
Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.
Additional commits post-branch will follow.
Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation |
| 302372 |
06-Jul-2016 |
nwhitehorn |
Replace a number of conflations of mp_ncpus and mp_maxid with either
mp_maxid or CPU_FOREACH() as appropriate. This fixes a number of places in
the kernel that assumed CPU IDs are dense in [0, mp_ncpus) and would try,
for example, to run tasks on CPUs that did not exist or to allocate too
few buffers on systems with sparse CPU IDs in which there are holes in the
range and mp_maxid > mp_ncpus. Such circumstances generally occur on
systems with SMT, but on which SMT is disabled. This patch restores system
operation at least on POWER8 systems configured in this way.
There are a number of other places in the kernel with potential problems
in these situations, but where sparse CPU IDs are not currently known
to occur, mostly in the ARM machine-dependent code. These will be fixed
in a follow-up commit after the stable/11 branch.
PR: kern/210106
Reviewed by: jhb
Approved by: re (glebius)
|
| 299912 |
16-May-2016 |
sephe |
atomic: Add testandclear on i386/amd64
Reviewed by: kib
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D6381
|
| 299286 |
09-May-2016 |
jhb |
Add a new bus method to fetch device-specific CPU sets.
bus_get_cpus() returns a specified set of CPUs for a device. It accepts
an enum for the second parameter that indicates the type of cpuset to
request. Currently two valus are supported:
- LOCAL_CPUS (on x86 this returns all the CPUs in the package closest to
the device when DEVICE_NUMA is enabled)
- INTR_CPUS (like LOCAL_CPUS but only returns 1 SMT thread for each core)
For systems that do not support NUMA (or if it is not enabled in the kernel
config), LOCAL_CPUS fails with EINVAL. INTR_CPUS is mapped to 'all_cpus'
by default. The idea is that INTR_CPUS should always return a valid set.
Device drivers which want to use per-CPU interrupts should start using
INTR_CPUS instead of simply assigning interrupts to all available CPUs.
In the future we may wish to add tunables to control the policy of
INTR_CPUS (e.g. should it be local-only or global, should it ignore
SMT threads or not).
The x86 nexus driver exposes the internal set of interrupt CPUs from the
the x86 interrupt code via INTR_CPUS.
The ACPI bus driver and PCI bridge drivers use _PXM to return a suitable
LOCAL_CPUS set when _PXM exists and DEVICE_NUMA is enabled. They also and
the global INTR_CPUS set from the nexus driver with the per-domain set from
_PXM to generate a local INTR_CPUS set for child devices.
Compared to the r298933, this version uses 'struct _cpuset' in
<sys/bus.h> instead of 'cpuset_t' to avoid requiring <sys/param.h>
(<sys/_cpuset.h> still requires <sys/param.h> for MAXCPU even though
<sys/_bitset.h> does not after recent changes).
|
| 298971 |
03-May-2016 |
royger |
xen/i386: enable the platform hypercall for i386
Not sure why the platform hypercall was disabled on i386, just enable it in
order to fix compilation of the PV timer on i386.
Sponsored by: Citrix Systems R&D
|
| 297399 |
29-Mar-2016 |
kib |
Type of the interrupt handlers on x86 cannot be expressed in C.
Simplify and unify placeholder type definitions.
Reviewed by: jhb
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D5771
|
| 293343 |
07-Jan-2016 |
emaste |
Move amd64 metadata.h to x86 and share with i386
MFC after: 1 week
|
| 292668 |
23-Dec-2015 |
jhb |
Move shared variables from {amd64,i386}/initcpu.c to x86/identcpu.c.
While here, move the common bits of <machine/cputypes.h> to
<x86/cputypes.h> as well.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D4670
|
| 291949 |
07-Dec-2015 |
kib |
Merge common parts of i386 and amd64 md_var.h and smp.h into
new headers x86/include x86_var.h and x86_smp.h.
Reviewed by: emaste, jhb
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D4358
|
| 291688 |
03-Dec-2015 |
kib |
For amd64 non-PCID machines, and for i386 machines with support for
the PG_G global pte flag, pmap_invalidate_all() fails to flush global
TLB entries [*]. This is because TLB shootdown handler for such
configs reloads CR3, and on i386 pmap_invalidate_all() does the same
for the initiating CPU. Note that current code does not issue total
invalidation requests for the kernel_pmap.
Rename amd64 function invltlb_globpcid() to invltlb_glob(), it is not
specific for PCID for quite some time, and implement the same
functionality for i386. Use the function instead of invltlb() in
shootdown handlers and in i386 pmap_invalidate_all(), but only for the
kernel pmap (which maps pages with the PG_G attribute set), which
takes care of PG_G TLB entries on flush.
To detect the affected pmap in i386 TLB shootdown handler, pmap should
be passed to the smp_masked_invltlb() function, which makes amd64 and
i386 TLB shootdown code almost identical. Merge the code under x86/.
Noted by: jhb [*]
Reviewed by: cem, jhb, pho
Tested by: pho
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D4346
|
| 290728 |
12-Nov-2015 |
jhb |
Export various helper variables describing the layout and size of
certain kernel structures for use by debuggers. This mostly aids
in examining cores from a kernel without debug symbols as a debugger
can infer these values if debug symbols are available.
One set of variables describes the layout of 'struct linker_file' to
walk the list of loaded kernel modules.
A second set of variables describes the layout of 'struct proc' and
'struct thread' to walk the list of processes in the kernel and the
threads in each process.
The 'pcb_size' variable is used to index into the stoppcbs[] array.
The 'vm_maxuser_address' is used to distinguish kernel virtual addresses
from user addresses. This doesn't have to be perfect, and
'vm_maxuser_address' is a cheap and simple way to differentiate kernel
pointers from simple values like TIDs and PIDs.
While here, annotate the fields in struct pcb used by kgdb on amd64
and i386 to note that their ABI should be preserved. Annotations for
other platforms will be added in the future.
Reviewed by: kib
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D3773
|
| 290188 |
30-Oct-2015 |
kib |
The prefix for CLFLUSHOPT is 0x66. It was right on amd64.
Sponsored by: The FreeBSD Foundation
|
| 290164 |
29-Oct-2015 |
jhb |
Use movw instead of movl (or plain mov) when moving segment registers
into memory. This is a nop on clang's assembler, but some assemblers
complain if the size suffix is incorrect.
Submitted by: bde
|
| 289824 |
23-Oct-2015 |
kib |
Add CLFLUSHOPT instruction wrappers.
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|
| 289685 |
21-Oct-2015 |
royger |
x86/xen: Consolidate xen-os.h in a single place
amd64 and i386 platform code contain very similar xen/xen-os.h
The only differences are:
- Functions/variables/types which were unused in i386/xen/xen-os.h:
* xen_xchg
* __xchg_dummy
* __xg
* __xchg
* atomic_t
* atomic_inc
* rdtscll
The functions/variables/types unused in xen-os.h can be dropped and there
is no more differences betwen amd64 and i386.
The new header is placed in x86/include/xen and each platform will have
dummy headers include x86/xen/*.h. This is to be able to include
machine/xen/*.h in the PV drivers.
Submitted by: Julien Grall <julien.grall@citrix.com>
Reviewed by: royger
Differential Revision: https://reviews.freebsd.org/D3880
Sponsored by: Citrix Systems R&D
|
| 289033 |
08-Oct-2015 |
royger |
xen/console: Introduce a new console driver for Xen guest
The current Xen console driver is crashing very quickly when using it on
an ARM guest. This is because the console lock is recursive and it may
lead to recursion on the tty lock and/or corrupt the ring pointer.
Furthermore, the console lock is not always taken where it should be and has
to be released too early because of the way the console has been designed.
Over the years, code has been modified to support various new features but
the driver has not been reworked.
This new driver has been rewritten with the idea of only having a small set
of specific function to write either via the shared ring or the hypercall
interface.
Note that HVM support has been left aside for now because it requires
additional features which are not yet supported. A follow-up patch will be
sent with HVM guest support.
List of items that may be good to have but not mandatory:
- Avoid to flush for each character written when using the tty
- Support multiple consoles
Submitted by: Julien Grall <julien.grall@citrix.com>
Reviewed by: royger
Differential Revision: https://reviews.freebsd.org/D3698
Sponsored by: Citrix Systems R&D
|
| 288917 |
06-Oct-2015 |
royger |
Update Xen headers from 4.2 to 4.6
Pull the latest headers for Xen which allow us to add support for ARM and
use new features in FreeBSD.
This is a verbatim copy of the xen/include/public so every headers which
don't exits anymore in the Xen repositories have been dropped.
Note the interface version hasn't been bumped, it will be done in a
follow-up. Although, it requires fix in the code to get it compiled:
- sys/xen/xen_intr.h: evtchn_port_t is already defined in the headers so
drop it.
- {amd64,i386}/include/intr_machdep.h: NR_EVENT_CHANNELS now depends on
xen/interface/event_channel.h, so include it.
- {amd64,i386}/{amd64,i386}/support.S: It's not neccessary to include
machine/intr_machdep.h. This is also fixing build compilation with the
new headers.
- dev/xen/blkfront/blkfront.c: The typedef for blkif_request_segmenthas
been dropped. So directly use struct blkif_request_segment
Finally, modify xen/interface/xen-compat.h to throw a preprocessing error if
__XEN_INTERFACE_VERSION__ is not set. This is allow us to catch any file
where xen/xen-os.h is not correctly included.
Submitted by: Julien Grall <julien.grall@citrix.com>
Reviewed by: royger
Differential Revision: https://reviews.freebsd.org/D3805
Sponsored by: Citrix Systems R&D
|
| 287643 |
11-Sep-2015 |
markj |
Merge stack(9) implementations for i386 and amd64 under x86/.
Reviewed by: jhb, kib
Sponsored by: EMC / Isilon Storage Division
Differential Revision: https://reviews.freebsd.org/D3255
|
| 286401 |
07-Aug-2015 |
kib |
Remove unused i386 header privatespace.h. For the native kernel, its
use was removed in r173592 (Nov 2007), yet Xen PV bits continued
referencing the privatespace structure, and were removed in r282274
(Apr 2015).
Discussed with: jhb
Sponsored by: The FreeBSD Foundation
|
| 286372 |
06-Aug-2015 |
jhb |
Remove some more vestiges of the Xen PV domu support. Specifically,
use vtophys() directly instead of vtomach() and retire the no-longer-used
headers <machine/xenfunc.h> and <machine/xenvar.h>.
Reported by: bde (stale bits in <machine/xenfunc.h>)
Reviewed by: royger (earlier version)
Differential Revision: https://reviews.freebsd.org/D3266
|
| 286336 |
05-Aug-2015 |
emaste |
Rationalize BSD license on sys/*/include/in_cksum.h
Remove the advertising clause from the Regents of the University of
California's license, per the letter dated July 22, 1999.
Update clause numbering.
|
| 286296 |
04-Aug-2015 |
jah |
Add two new pmap functions:
vm_offset_t pmap_quick_enter_page(vm_page_t m)
void pmap_quick_remove_page(vm_offset_t kva)
These will create and destroy a temporary, CPU-local KVA mapping of a specified page.
Guarantees:
--Will not sleep and will not fail.
--Safe to call under a non-sleepable lock or from an ithread
Restrictions:
--Not guaranteed to be safe to call from an interrupt filter or under a spin mutex on all platforms
--Current implementation does not guarantee more than one page of mapping space across all platforms. MI code should not make nested calls to pmap_quick_enter_page.
--MI code should not perform locking while holding onto a mapping created by pmap_quick_enter_page
The idea is to use this in busdma, for bounce buffer copies as well as virtually-indexed cache maintenance on mips and arm.
NOTE: the non-i386, non-amd64 implementations of these functions still need review and testing.
Reviewed by: kib
Approved by: kib (mentor)
Differential Revision: http://reviews.freebsd.org/D3013
|
| 286288 |
04-Aug-2015 |
kib |
Give large kernel stack to the initial thread . Otherwise, ZFS
overflows the stack during root mount in some configurations.
Tested by: Fabian Keil <freebsd-listen@fabiankeil.de> (previous version)
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
|
| 286228 |
03-Aug-2015 |
kib |
Clear the IA32_MISC_ENABLE MSR bit, which limits the max CPUID
reported, on APs. We already did this on BSP.
Otherwise, the userspace software which depends on the features
reported by the high CPUID levels is misbehaving. In particular, AVX
detection is non-functional, depending on which CPU thread happens to
execute when doing CPUID. Another victim is the libthr signal
handlers interposer, which needs to save full FPU extended state.
Reported and tested by: Andre Meiser <ortadur@web.de>
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
|
| 286078 |
30-Jul-2015 |
kib |
Improve comments.
Submitted by: bde
MFC after: 2 weeks
|
| 286051 |
30-Jul-2015 |
kib |
Use private cache line for the locked nop in *mb() on i386.
Suggested by: alc
Reviewed by: alc, bde
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
|
| 286050 |
30-Jul-2015 |
kib |
MFamd64 r285934: Remove store/load (= full) barrier from the i386
atomic_load_acq_*().
Noted by: alc (long time ago)
Reviewed by: alc, bde
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
|
| 285787 |
22-Jul-2015 |
kib |
Remove duplicate and useless declarations.
Submitted by: bde
|
| 285354 |
10-Jul-2015 |
kib |
Duplicate the copyright from the i386/i386/machdep.c into
i386/include/frame.h after a code was moved from machdep.c to frame.h
in r284925.
Use include guards style similar to other guards.
Noted by: bde
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|
| 285283 |
08-Jul-2015 |
kib |
Add the atomic_thread_fence() family of functions with intent to
provide a semantic defined by the C11 fences with corresponding
memory_order.
atomic_thread_fence_acq() gives r | r, w, where r and w are read and
write accesses, and | denotes the fence itself.
atomic_thread_fence_rel() is r, w | w.
atomic_thread_fence_acq_rel() is the combination of the acquire and
release in single operation. Note that reads after the acq+rel fence
could be made visible before writes preceeding the fence.
atomic_thread_fence_seq_cst() orders all accesses before/after the
fence, and the fence itself is globally ordered against other
sequentially consistent atomic operations.
Reviewed by: alc
Discussed with: bde
Sponsored by: The FreeBSD Foundation
MFC after: 3 weeks
|
| 285041 |
02-Jul-2015 |
kib |
Use single instance of the identical INKERNEL() and PMC_IN_KERNEL()
macros on amd64 and i386. Move the definition to machine/param.h.
kgdb defines INKERNEL() too, the conflict is resolved by renaming kgdb
version to PINKERNEL().
On i386, correct the lowest kernel address. After the shared page was
introduced, USRSTACK no longer points to the last user address + 1 [*]
Submitted by: Oliver Pinter [*]
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|
| 284926 |
29-Jun-2015 |
kib |
Provide npx_get_fsave(9) and npx_set_fsave(9) functions to obtain and
restore the FPU state from the format of machine FSAVE area. The
intended use is for ABI emulators to provide FSAVE-formatted FPU state
to usermode requiring it, while kernel could use FXSAVE due to
XMM/XSAVE.
The core functionality to convert from/to FXSAVE format is shared with
the fill_fpregs_xmm() and set_fpregs_xmm(). Move the later functions
to npx.c and rename them to npx_fill_fpregs_xmm() and
npx_set_fpregs_xmm(). They differ from nptx_get/set_fsave(9) since
our mcontext contains padding to be zeroed or ignored.
fill_fpregs() and set_fpregs() could be converted to use the new
interface, but there are small differences to handle.
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|
| 284925 |
29-Jun-2015 |
kib |
Move CS_SECURE() and EFL_SECURE() macros to the machine/frame.h. They
are useful for most implementations of sendsig().
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|
| 284922 |
29-Jun-2015 |
kib |
Add a comment about too strong semantic of atomic_load_acq() on x86.
Submitted by: bde
MFC after: 2 weeks
|
| 284918 |
29-Jun-2015 |
kib |
Reduce code duplication. Add helper fill_based_sd(9) which creates a
based user data descriptor covering whole VA.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
|
| 284901 |
28-Jun-2015 |
kib |
Remove unneeded data dependency, currently imposed by
atomic_load_acq(9), on it source, for x86.
Right now, atomic_load_acq() on x86 is sequentially consistent with
other atomics, code ensures this by doing store/load barrier by
performing locked nop on the source. Provide separate primitive
__storeload_barrier(), which is implemented as the locked nop done on
a cpu-private variable, and put __storeload_barrier() before load, to
keep seq_cst semantic but avoid introducing false dependency on the
no-modification of the source for its later use.
Note that seq_cst property of x86 atomic_load_acq() is not documented
and not carried by atomics implementations on other architectures,
although some kernel code relies on the behaviour. This commit does
not intend to change this.
Reviewed by: alc
Discussed with: bde
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
|
| 284325 |
12-Jun-2015 |
jhb |
Report the values of x86 segment registers to remote debuggers.
While here, also report %eflags from the i386 trapframe.
Differential Revision: https://reviews.freebsd.org/D2743
Reviewed by: kib
Obtained from: 1 month
|
| 284324 |
12-Jun-2015 |
jhb |
Ensure that the upper 16 bits of segment registers manually saved in
trapframes are cleared by explicitly pushing a zero and then moving
the segment register into the low 16 bits. Certain Intel processors
treat a push of a segment register as a move of the segment register
into the low 16 bits leaving the upper 16 bits of the word in the
stack unchanged.
Reviewed by: kib
MFC after: 1 month
|
| 284147 |
08-Jun-2015 |
alc |
Retire VM_FREEPOOL_CACHE as the next step in eliminating PG_CACHE pages.
Differential Revision: https://reviews.freebsd.org/D2712
Reviewed by: kib
Sponsored by: EMC / Isilon Storage Division
|
| 284104 |
06-Jun-2015 |
kib |
Update print_INTEL_TLB() by the tag values from the Intel SDM
rev. 55. The modern CPUs cache and TLB descriptions looked quite
questionable without the update, e.g. Haswell i7 4770S reported:
Data TLB: 4 KB pages, 4-way set associative, 64 entries
L2 cache: 256 kbytes, 8-way associative, 64 bytes/line
After the update, the report is:
Data TLB: 1 GByte pages, 4-way set associative, 4 entries
Data TLB: 4 KB pages, 4-way set associative, 64 entries
Instruction TLB: 2M/4M pages, fully associative, 8 entries
Instruction TLB: 4KByte pages, 8-way set associative, 64 entries
64-Byte prefetching
Shared 2nd-Level TLB: 4 KByte/2MByte pages, 8-way associative, 1024 entries
L2 cache: 256 kbytes, 8-way associative, 64 bytes/line
Some tags were apparently removed from the table 3-21, Vol. 2A. Keep
them around, but add a comment stating the removal.
Update the format line for cpu_stdext_feature according to the bits
from the SDM rev.55. It appears that Haswells do not store %cs and
%ds values in the FPU save area.
Store content of the %ecx register from the CPUID leaf 0x7
subleaf 0 as cpu_stdext_feature2 and print defined bits from it,
again acording to SDM rev. 55.
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|
| 282678 |
09-May-2015 |
kib |
If x86 CPU implementation of the MWAIT instruction reasonably
interacts with interrupts, query ACPI and use MWAIT for entrance into
Cx sleep states. Support C1 "I/O then halt" mode. See Intel'
document 302223-007 "Intelб╝ Processor Vendor-Specific ACPI Interface
Specification" for description.
Move the acpi_cpu_c1() function into x86/cpu_machdep.c and use
it instead of inlining "sti; hlt" sequence in several places.
In the acpi(4) man page, besides documenting the dev.cpu.N.cx_methods
sysctl, correct the names for dev.cpu.N.{cx_usage,cx_lowest,cx_supported}
sysctls.
Both jkim and avg have some other patches implementing the mwait
functionality; this work is unrelated. Linux does not rely on the
ACPI to provide correct tables describing Cx modes. Instead, the
driver has pre-defined knowledge of the CPU models, it was supplied by
Intel.
Tested by: pho (previous versions)
Sponsored by: The FreeBSD Foundation
|
| 282274 |
30-Apr-2015 |
jhb |
Remove support for Xen PV domU kernels. Support for HVM domU kernels
remains. Xen is planning to phase out support for PV upstream since it
is harder to maintain and has more overhead. Modern x86 CPUs include
virtualization extensions that support HVM guests instead of PV guests.
In addition, the PV code was i386 only and not as well maintained recently
as the HVM code.
- Remove the i386-only NATIVE option that was used to disable certain
components for PV kernels. These components are now standard as they
are on amd64.
- Remove !XENHVM bits from PV drivers.
- Remove various shims required for XEN (e.g. PT_UPDATES_FLUSH, LOAD_CR3,
etc.)
- Remove duplicate copy of <xen/features.h>.
- Remove unused, i386-only xenstored.h.
Differential Revision: https://reviews.freebsd.org/D2362
Reviewed by: royger
Tested by: royger (i386/amd64 HVM domU and amd64 PVH dom0)
Relnotes: yes
|
| 281940 |
24-Apr-2015 |
kib |
Move common code from sys/i386/i386/mp_machdep.c and
sys/amd64/amd64/mp_machdep.c, to the new common x86 source
sys/x86/x86/mp_x86.c.
Proposed and reviewed by: jhb
Review: https://reviews.freebsd.org/D2347
Sponsored by: The FreeBSD Foundation
|
| 281887 |
23-Apr-2015 |
jhb |
Reassign copyright statements on several files from Advanced
Computing Technologies LLC to Hudson River Trading LLC.
Approved by: Hudson River Trading LLC (who owns ACT LLC)
MFC after: 1 week
|
| 281851 |
22-Apr-2015 |
kib |
Move some common code from sys/amd64/amd64/machdep.c and
sys/i386/i386/machdep.c to new file sys/x86/x86/cpu_machdep.c. Most
of the code is related to the idle handling.
Discussed with: pluknet
Sponsored by: The FreeBSD Foundation
|
| 281707 |
18-Apr-2015 |
kib |
Remove lazy pmap switch code from i386. Naive benchmark with md(4)
shows no difference with the code removed.
On both amd64 and i386, assert that a released pmap is not active.
Proposed and reviewed by: alc
Discussed with: Svatopluk Kraus <onwahe@gmail.com>, peter
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
|
| 281495 |
13-Apr-2015 |
kib |
Add config option PAE_TABLES for the i386 kernel. It switches pmap to
use PAE format for the page tables, but does not incur other
consequences of the full PAE config. In particular, vm_paddr_t and
bus_addr_t are left 32bit, and max supported memory is still limited
by 4GB.
The option allows to have nx permissions for memory mappings on i386
kernel, while keeping the usual i386 KBI and avoiding the kernel data
sizing problems typical for the PAE config.
Intel documented that the PAE format for page tables is available
starting with the Pentium Pro, but it is possible that the plain
Pentium CPUs have the required support (Appendix H). The goal is to
enable the option and non-exec mappings on i386 for the GENERIC
kernel. Anybody wanting a useful system on 486, have to reconfigure
the modern i386 kernel anyway.
Discussed with: alc, jhb
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
|
| 281272 |
08-Apr-2015 |
kib |
Explain that vm_page_array is mapped to describe the memory, not the
memory itself. Provide the formula to calculate the number of
required page tables. Correct the size of the struct vm_page for
non-PAE case.
Reviewed by: alc, jhb (previous version)
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|
| 280260 |
19-Mar-2015 |
kib |
Use VT-d interrupt remapping block (IR) to perform FSB messages
translation. In particular, despite IO-APICs only take 8bit apic id,
IR translation structures accept 32bit APIC Id, which allows x2APIC
mode to function properly. Extend msi_cpu of struct msi_intrsrc and
io_cpu of ioapic_intsrc to full int from one byte.
KPI of IR is isolated into the x86/iommu/iommu_intrmap.h, to avoid
bringing all dmar headers into interrupt code. The non-PCI(e) devices
which generate message interrupts on FSB require special handling. The
HPET FSB interrupts are remapped, while DMAR interrupts are not.
For each msi and ioapic interrupt source, the iommu cookie is added,
which is in fact index of the IRE (interrupt remap entry) in the IR
table. Cookie is made at the source allocation time, and then used at
the map time to fill both IRE and device registers. The MSI
address/data registers and IO-APIC redirection registers are
programmed with the special values which are recognized by IR and used
to restore the IRE index, to find proper delivery mode and target.
Map all MSI interrupts in the block when msi_map() is called.
Since an interrupt source setup and dismantle code are done in the
non-sleepable context, flushing interrupt entries cache in the IR
hardware, which is done async and ideally waits for the interrupt,
requires busy-wait for queue to drain. The dmar_qi_wait_for_seq() is
modified to take a boolean argument requesting busy-wait for the
written sequence number instead of waiting for interrupt.
Some interrupts are configured before IR is initialized, e.g. ACPI
SCI. Add intr_reprogram() function to reprogram all already
configured interrupts, and call it immediately before an IR unit is
enabled. There is still a small window after the IO-APIC redirection
entry is reprogrammed with cookie but before the unit is enabled, but
to fix this properly, IR must be started much earlier.
Add workarounds for 5500 and X58 northbridges, some revisions of which
have severe flaws in handling IR. Use the same identification methods
as employed by Linux.
Review: https://reviews.freebsd.org/D1892
Reviewed by: neel
Discussed with: jhb
Tested by: glebius, pho (previous versions)
Sponsored by: The FreeBSD Foundation
MFC after: 3 weeks
|
| 278473 |
09-Feb-2015 |
kib |
Add x2APIC support. Enable it by default if CPU is capable. The
hw.x2apic_enable tunable allows disabling it from the loader prompt.
To closely repeat effects of the uncached memory ops when accessing
registers in the xAPIC mode, the x2APIC writes to MSRs are preceeded
by mfence, except for the EOI notifications. This is probably too
strict, only ICR writes to send IPI require serialization to ensure
that other CPUs see the previous actions when IPI is delivered. This
may be changed later.
In vmm justreturn IPI handler, call doreti_iret instead of doing iretd
inline, to handle corner conditions.
Note that the patch only switches LAPICs into x2APIC mode. It does not
enables FreeBSD to support > 255 CPUs, which requires parsing x2APIC
MADT entries and doing interrupts remapping, but is the required step
on the way.
Reviewed by: neel
Tested by: pho (real hardware), neel (on bhyve)
Discussed with: jhb, grehan
Sponsored by: The FreeBSD Foundation
MFC after: 2 months
|
| 278183 |
04-Feb-2015 |
bryanv |
Generalized parts of the XEN timer code into a generic pvclock
KVM clock shares the same data structures between the guest and the host
as Xen so it makes sense to just have a single copy of this code.
Differential Revision: https://reviews.freebsd.org/D1429
Reviewed by: royger (eariler version)
MFC after: 1 month
|
| 277215 |
15-Jan-2015 |
royger |
loader: implement multiboot support for Xen Dom0
Implement a subset of the multiboot specification in order to boot Xen
and a FreeBSD Dom0 from the FreeBSD bootloader. This multiboot
implementation is tailored to boot Xen and FreeBSD Dom0, and it will
most surely fail to boot any other multiboot compilant kernel.
In order to detect and boot the Xen microkernel, two new file formats
are added to the bootloader, multiboot and multiboot_obj. Multiboot
support must be tested before regular ELF support, since Xen is a
multiboot kernel that also uses ELF. After a multiboot kernel is
detected, all the other loaded kernels/modules are parsed by the
multiboot_obj format.
The layout of the loaded objects in memory is the following; first the
Xen kernel is loaded as a 32bit ELF into memory (Xen will switch to
long mode by itself), after that the FreeBSD kernel is loaded as a RAW
file (Xen will parse and load it using it's internal ELF loader), and
finally the metadata and the modules are loaded using the native
FreeBSD way. After everything is loaded we jump into Xen's entry point
using a small trampoline. The order of the multiboot modules passed to
Xen is the following, the first module is the RAW FreeBSD kernel, and
the second module is the metadata and the FreeBSD modules.
Since Xen will relocate the memory position of the second
multiboot module (the one that contains the metadata and native
FreeBSD modules), we need to stash the original modulep address inside
of the metadata itself in order to recalculate its position once
booted. This also means the metadata must come before the loaded
modules, so after loading the FreeBSD kernel a portion of memory is
reserved in order to place the metadata before booting.
In order to tell the loader to boot Xen and then the FreeBSD kernel the
following has to be added to the /boot/loader.conf file:
xen_cmdline="dom0_mem=1024M dom0_max_vcpus=2 dom0pvh=1 console=com1,vga"
xen_kernel="/boot/xen"
The first argument contains the command line that will be passed to the Xen
kernel, while the second argument is the path to the Xen kernel itself. This
can also be done manually from the loader command line, by for example
typing the following set of commands:
OK unload
OK load /boot/xen dom0_mem=1024M dom0_max_vcpus=2 dom0pvh=1 console=com1,vga
OK load kernel
OK load zfs
OK load if_tap
OK load ...
OK boot
Sponsored by: Citrix Systems R&D
Reviewed by: jhb
Differential Revision: https://reviews.freebsd.org/D517
For the Forth bits:
Submitted by: Julien Grall <julien.grall AT citrix.com>
|
| 277047 |
12-Jan-2015 |
kib |
For x86, read MAXPHYADDR, defined in SDM vol 3 4.1.4 Enumeration of Paging
Features by CPUID as CPUID.80000008H:EAX[7:0], into variable cpu_maxphyaddr.
Reviewed by: alc
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|
| 276772 |
07-Jan-2015 |
markj |
Factor out duplicated code from dumpsys() on each architecture into generic
code in sys/kern/kern_dump.c. Most dumpsys() implementations are nearly
identical and simply redefine a number of constants and helper subroutines;
a generic implementation will make it easier to implement features around
kernel core dumps. This change does not alter any minidump code and should
have no functional impact.
PR: 193873
Differential Revision: https://reviews.freebsd.org/D904
Submitted by: Conrad Meyer <conrad.meyer@isilon.com>
Reviewed by: jhibbits (earlier version)
Sponsored by: EMC / Isilon Storage Division
|
| 275004 |
25-Nov-2014 |
emaste |
Revert r274772: it is not valid on MIPS
Reported by: sbruno
|
| 274772 |
21-Nov-2014 |
emaste |
Use canonical __PIC__ flag
It is automatically set when -fPIC is passed to the compiler.
Reviewed by: dim, kib
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D1179
|
| 274556 |
15-Nov-2014 |
alc |
Enable the use of VM_PHYSSEG_SPARSE on amd64 and i386, making it the default
on i386 PAE. Previously, VM_PHYSSEG_SPARSE could not be used on amd64 and
i386 because vm_page_startup() would not create vm_page structures for the
kernel page table pages allocated during pmap_bootstrap() but those vm_page
structures are needed when the kernel attempts to promote the corresponding
kernel virtual addresses to superpage mappings. To address this problem, a
new public function, vm_phys_add_seg(), is introduced and vm_phys_init() is
updated to reflect the creation of vm_phys_seg structures by calls to
vm_phys_add_seg().
Discussed with: Svatopluk Kraus
MFC after: 3 weeks
Sponsored by: EMC / Isilon Storage Division
|
| 273995 |
02-Nov-2014 |
jhb |
MFamd64: Add support for extended FPU states on i386. This includes
support for AVX on i386.
- Similar to amd64, move the FPU save area out of the PCB and instead
store saved FPU state in a variable-sized buffer after the PCB on the
stack.
- To support the variable PCB location, alter the locore code to only use
the bottom-most page of proc0stack for init386(). init386() returns
the correct stack pointer to locore which adjusts the stack for thread0
before calling mi_startup().
- Don't bother setting cr3 in thread0's pcb in locore before calling
init386(). It wasn't used (init386() overwrote it at the end) and
it doesn't work with the variable-sized FPU save area.
- Remove the new-bus attachment from npx. This was only ever useful for
external co-processors using IRQ13, but those have not been supported
for several years. npxinit() is now called much earlier during boot
(init386()) similar to amd64.
- Implement PT_{GET,SET}XSTATE and I386_GET_XFPUSTATE.
- npxsave() is now only called from context switch contexts so it can
use XSAVEOPT.
Differential Revision: https://reviews.freebsd.org/D1058
Reviewed by: kib
Tested on: FreeBSD/i386 VM under bhyve on Intel i5-2520
|
| 273991 |
02-Nov-2014 |
jhb |
MFamd64: Move extern declaration of _ucodesel and _udatasel to
<machine/md_var.h>
|
| 273988 |
02-Nov-2014 |
jhb |
Remove the FP_SOFTFP flag. It wasn't used but was leftover from the
software x86 math emulator.
|
| 273800 |
28-Oct-2014 |
jhb |
Rework virtual machine hypervisor detection.
- Move the existing code to x86/x86/identcpu.c since it is x86-specific.
- If the CPUID2_HV flag is set, assume a hypervisor is present and query
the 0x40000000 leaf to determine the hypervisor vendor ID. Export the
vendor ID and the highest supported hypervisor CPUID leaf via
hv_vendor[] and hv_high variables, respectively. The hv_vendor[]
array is also exported via the hw.hv_vendor sysctl.
- Merge the VMWare detection code from tsc.c into the new probe in
identcpu.c. Add a VM_GUEST_VMWARE to identify vmware and use that in
the TSC code to identify VMWare.
Differential Revision: https://reviews.freebsd.org/D1010
Reviewed by: delphij, jkim, neel
|
| 273476 |
22-Oct-2014 |
royger |
xen: implement the privcmd user-space device
This device is only attached to priviledged domains, and allows the
toolstack to interact with Xen. The two functions of the privcmd
interface is to allow the execution of hypercalls from user-space, and
the mapping of foreign domain memory.
Sponsored by: Citrix Systems R&D
i386/include/xen/hypercall.h:
amd64/include/xen/hypercall.h:
- Introduce a function to make generic hypercalls into Xen.
xen/interface/xen.h:
xen/interface/memory.h:
- Import the new hypercall XENMEM_add_to_physmap_range used by
auto-translated guests to map memory from foreign domains.
dev/xen/privcmd/privcmd.c:
- This device has the following functions:
- Allow user-space applications to make hypercalls into Xen.
- Allow user-space applications to map memory from foreign domains,
this is accomplished using the newly introduced hypercall
(XENMEM_add_to_physmap_range).
xen/privcmd.h:
- Public ioctl interface for the privcmd device.
x86/xen/hvm.c:
- Remove declaration of hypercall_page, now it's declared in
hypercall.h.
conf/files:
- Add the privcmd device to the build process.
|
| 272766 |
08-Oct-2014 |
markj |
Pass up the error status of minidumpsys() to its callers.
PR: 193761
Submitted by: Conrad Meyer <conrad.meyer@isilon.com>
Sponsored by: EMC / Isilon Storage Division
|
| 272761 |
08-Oct-2014 |
kib |
Add an argument to the x86 pmap_invalidate_cache_range() to request
forced invalidation of the cache range regardless of the presence of
self-snoop feature. Some recent Intel GPUs in some modes are not
coherent, and dirty lines in CPU cache must be flushed before the
pages are transferred to GPU domain.
Reviewed by: alc (previous version)
Tested by: pho (amd64)
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|
| 271409 |
10-Sep-2014 |
jhb |
MFamd64: Use initializecpu() to set various model-specific registers on
AP startup and AP resume (it was already used for BSP startup and BSP
resume).
- Split code to do one-time probing of cache properties out of
initializecpu() and into initializecpucache(). This is called once on
the BSP during boot.
- Move enable_sse() into initializecpu().
- Call initializecpu() for AP startup instead of enable_sse() and
manually frobbing MSR_EFER to enable PG_NX.
- Call initializecpu() when an AP resumes. In theory this will now
properly re-enable PG_NX in MSR_EFER when resuming a PAE kernel on
APs.
|
| 271408 |
10-Sep-2014 |
jhb |
To workaround an errata on certain Pentium Pro CPUs, i386 disables
the local APIC in initializecpu() and re-enables it if the APIC code
decides to use the local APIC after all. Rework this workaround
slightly so that initializecpu() won't re-disable the local APIC if
it is called after the APIC code re-enables the local APIC.
|
| 271405 |
10-Sep-2014 |
jhb |
Move code to set various MSRs on AMD cpus out of printcpuinfo() and
into initalizecpu() instead.
|
| 271192 |
06-Sep-2014 |
jhb |
Create a separate structure for per-CPU state saved across suspend and
resume that is a superset of a pcb. Move the FPU state out of the pcb and
into this new structure. As part of this, move the FPU resume code on
amd64 into a C function. This allows resumectx() to still operate only on
a pcb and more closely mirrors the i386 code.
Reviewed by: kib (earlier version)
|
| 271098 |
04-Sep-2014 |
jhb |
Merge the amd64 and i386 identcpu.c into a single x86 implementation.
This brings the structured extended features mask and VT-x reporting to
i386 and Intel cache and TLB info (under bootverbose) to amd64.
|
| 271076 |
04-Sep-2014 |
jhb |
- Move prototypes for various functions into out of C files and into
<machine/md_var.h>.
- Move some CPU-related variables out of i386/i386/identcpu.c to
initcpu.c to match amd64.
- Move the declaration of has_f00f_hack out of identcpu.c to machdep.c.
- Remove a misleading comment from i386/i386/initcpu.c (locore zeros
the BSS before it calls identify_cpu()) and remove explicit zero
assignments to reduce the diff with amd64.
|
| 270850 |
30-Aug-2014 |
jhb |
Save and restore FPU state across suspend and resume. In earlier revisions
of this patch, resumectx() called npxresume() directly, but that doesn't
work because resumectx() runs with a non-standard %cs selector. Instead,
all of the FPU suspend/resume handling is done in C.
MFC after: 1 week
|
| 270828 |
29-Aug-2014 |
jhb |
- Add a new structure type for the ACPI 3.0 SMAP entry that includes the
optional attributes field.
- Add a 'machdep.smap' sysctl that exports the SMAP table of the running
system as an array of the ACPI 3.0 structure. (On older systems, the
attributes are given a value of zero.) Note that the sysctl only
exports the SMAP table if it is available via the metadata passed from
the loader to the kernel. If an SMAP is not available, an empty array
is returned.
- Add a format handler for the ACPI 3.0 SMAP structure to the sysctl(8)
binary to format the SMAP structures in a readable format similar to
the format found in boot messages.
MFC after: 2 weeks
|
| 269577 |
05-Aug-2014 |
glebius |
Merge all MD sf_buf allocators into one MI, residing in kern/subr_sfbuf.c
The MD allocators were very common, however there were some minor
differencies. These differencies were all consolidated in the MI allocator,
under ifdefs. The defines from machine/vmparam.h turn on features required
for a particular machine. For details look in the comment in sys/sf_buf.h.
As result no MD code left in sys/*/*/vm_machdep.c. Some arches still have
machine/sf_buf.h, which is usually quite small.
Tested by: glebius (i386), tuexen (arm32), kevlo (arm32)
Reviewed by: kib
Sponsored by: Netflix
Sponsored by: Nginx, Inc.
|
| 267767 |
23-Jun-2014 |
kib |
Add FPU_KERN_KTHR flag to fpu_kern_enter(9), which avoids saving FPU
context into memory for the kernel threads which called
fpu_kern_thread(9). This allows the fpu_kern_enter() callers to not
check for is_fpu_kern_thread() to get the optimization.
Apply the flag to padlock(4) and aesni(4). In aesni_cipher_process(),
do not leak FPU context state on error.
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|
| 267526 |
16-Jun-2014 |
royger |
amd64/i386: introduce APIC hooks for different APIC implementations.
This is needed for Xen PV(H) guests, since there's no hardware lapic
available on this kind of domains. This commit should not change
functionality.
Sponsored by: Citrix Systems R&D
Reviewed by: jhb
Approved by: gibbs
amd64/include/cpu.h:
amd64/amd64/mp_machdep.c:
i386/include/cpu.h:
i386/i386/mp_machdep.c:
- Remove lapic_ipi_vectored hook from cpu_ops, since it's now
implemented in the lapic hooks.
amd64/amd64/mp_machdep.c:
i386/i386/mp_machdep.c:
- Use lapic_ipi_vectored directly, since it's now an inline function
that will call the appropiate hook.
x86/x86/local_apic.c:
- Prefix bare metal public lapic functions with native_ and mark them
as static.
- Define default implementation of apic_ops.
x86/include/apicvar.h:
- Declare the apic_ops structure and create inline functions to
access the hooks, so the change is transparent to existing users of
the lapic_ functions.
x86/xen/hvm.c:
- Switch to use the new apic_ops.
|
| 263010 |
11-Mar-2014 |
royger |
xen: use the same hypercall mechanism for XEN and XENHVM
Currently XEN (PV) and XENHVM (PVHVM) ports use different ways to
issue hypercalls, unify this by filling the hypercall_page under HVM
also.
Approved by: gibbs
Sponsored by: Citrix Systems R&D
amd64/include/xen/hypercall.h:
- Unify Xen hypercall code by always using the PV way.
i386/i386/locore.s:
- Define hypercall_page on i386 XENHVM.
x86/xen/hvm.c:
- Fill hypercall_page on XENHVM kernels using the HVM method (only
when running as an HVM guest).
|
| 263008 |
11-Mar-2014 |
royger |
xen: implement an early timer for Xen PVH
When running as a PVH guest, there's no emulated i8254, so we need to
use the Xen PV timer as the early source for DELAY. This change allows
for different implementations of the early DELAY function and
implements a Xen variant for it.
Approved by: gibbs
Sponsored by: Citrix Systems R&D
dev/xen/timer/timer.c:
dev/xen/timer/timer.h:
- Implement Xen early delay functions using the PV timer and declare
them.
x86/include/init.h:
- Add hooks for early clock source initialization and early delay
functions.
i386/i386/machdep.c:
pc98/pc98/machdep.c:
amd64/amd64/machdep.c:
- Set early delay hooks to use the i8254 on bare metal.
- Use clock_init (that will in turn make use of init_ops) to
initialize the early clock source.
amd64/include/clock.h:
i386/include/clock.h:
- Declare i8254_delay and clock_init.
i386/xen/clock.c:
- Rename DELAY to i8254_delay.
x86/isa/clock.c:
- Introduce clock_init that will take care of initializing the early
clock by making use of the init_ops hooks.
- Move non ISA related delay functions to the newly introduced delay
file.
x86/x86/delay.c:
- Add moved delay related functions.
- Implement generic DELAY function that will use the init_ops hooks.
x86/xen/pv.c:
- Set PVH hooks for the early delay related functions in init_ops.
conf/files.amd64:
conf/files.i386:
conf/files.pc98:
- Add delay.c to the kernel build.
|
| 263004 |
11-Mar-2014 |
royger |
xen: add and enable Xen console for PVH guests
This adds and enables the PV console used on XEN kernels to
GENERIC/XENHVM kernels in order for it to be used on PVH.
Approved by: gibbs
Sponsored by: Citrix Systems R&D
dev/xen/console/console.c:
- Define console_page.
- Move xc_printf debug function from i386 XEN code to generic console
code.
- Rework xc_printf.
- Use xen_initial_domain instead of open-coded checks for Dom0.
- Gate the attach of the PV console to PV(H) guests.
dev/xen/console/xencons_ring.c:
- Allow the PV Xen console to output earlier by directly signaling
the event channel in start_info if the event channel is not yet
initialized.
- Use HYPERVISOR_start_info instead of xen_start_info.
i386/include/xen/xen-os.h:
- Remove prototype for xc_printf since it's now declared in global
xen-os.h
i386/xen/xen_machdep.c:
- Remove previous version of xc_printf.
- Remove definition of console_page (now it's defined in the console
itself).
- Fix some printf formatting errors.
x86/xen/pv.c:
- Add some early boot debug messages using xc_printf.
- Set console_page based on the value passed in start_info.
xen/xen-os.h:
- Declare console_page and add prototype for xc_printf.
|
| 263001 |
11-Mar-2014 |
royger |
amd64/i386: switch IPI handlers to C code.
Move asm IPIs handlers to C code, so both Xen and native IPI handlers
share the same code.
Reviewed by: jhb
Approved by: gibbs
Sponsored by: Citrix Systems R&D
amd64/amd64/apic_vector.S:
i386/i386/apic_vector.s:
- Remove asm coded IPI handlers and instead call the newly introduced
C variants.
amd64/amd64/mp_machdep.c:
i386/i386/mp_machdep.c:
- Add C coded clones to the asm IPI handlers (moved from
x86/xen/hvm.c).
i386/include/smp.h:
amd64/include/smp.h:
- Add prototypes for the C IPI handlers.
x86/xen/hvm.c:
- Move the C IPI handlers to mp_machdep and call those in the Xen IPI
handlers.
i386/xen/mp_machdep.c:
- Add dummy IPI handlers to the i386 Xen PV port (this port doesn't
support SMP).
|
| 261891 |
14-Feb-2014 |
avg |
provide fast versions of ffsl and flsl for i386; ffsll and flsll for amd64
Reviewed by: jhb
MFC after: 10 days
X-MFC note: consider thirdparty modules depending on these symbols
Sponsored by: HybridCluster
|
| 261790 |
12-Feb-2014 |
jhb |
Add support for managing PCI bus numbers. As with BARs and PCI-PCI bridge
I/O windows, the default is to preserve the firmware-assigned resources.
PCI bus numbers are only managed if NEW_PCIB is enabled and the architecture
defines a PCI_RES_BUS resource type.
- Add a helper API to create top-level PCI bus resource managers for each
PCI domain/segment. Host-PCI bridge drivers use this API to allocate
bus numbers from their associated domain.
- Change the PCI bus and CardBus drivers to allocate a bus resource for
their bus number from the parent PCI bridge device.
- Change the PCI-PCI and PCI-CardBus bridge drivers to allocate the
full range of bus numbers from secbus to subbus from their parent bridge.
The drivers also always program their primary bus register. The bridge
drivers also support growing their bus range by extending the bus resource
and updating subbus to match the larger range.
- Add support for managing PCI bus resources to the Host-PCI bridge drivers
used for amd64 and i386 (acpi_pcib, mptable_pcib, legacy_pcib, and qpi_pcib).
- Define a PCI_RES_BUS resource type for amd64 and i386.
Reviewed by: imp
MFC after: 1 month
|
| 261781 |
11-Feb-2014 |
jhb |
Don't waste a page of KVA for the boot-time memory test on x86. For amd64,
reuse the first page of the crashdumpmap as CMAP1/CADDR1. For i386,
remove CMAP1/CADDR1 entirely and reuse CMAP3/CADDR3 for the memory test.
Reviewed by: alc, peter
MFC after: 2 weeks
|
| 261087 |
23-Jan-2014 |
jhb |
Move <machine/apicvar.h> to <x86/apicvar.h>.
|
| 259140 |
09-Dec-2013 |
jhb |
Move constants for indices in the local APIC's local vector table from
apicvar.h to apicreg.h.
|
| 258451 |
21-Nov-2013 |
andreast |
Replace the WEAK_ALIAS() alias with the WEAK_REFERENCE() alias. Use it and
get rid of the __CONCAT and CNAME macros.
Reviewed by: bde, kib
|
| 258135 |
14-Nov-2013 |
emaste |
x86: Allow users to change PSL_RF via ptrace(PT_SETREGS...)
Debuggers may need to change PSL_RF. Note that tf_eflags is already stored
in the signal context during signal handling and PSL_RF previously could be
modified via sigreturn, so this change should not provide any new ability
to userspace.
For background see the thread at:
http://lists.freebsd.org/pipermail/freebsd-i386/2007-September/005910.html
Reviewed by: jhb, kib
Sponsored by: DARPA, AFRL
|
| 257854 |
08-Nov-2013 |
alc |
As of r257209, all architectures have defined VM_KMEM_SIZE_SCALE. In other
words, every architecture is now auto-sizing the kmem arena. This revision
changes kmeminit() so that the definition of VM_KMEM_SIZE_SCALE becomes
mandatory and the definition of VM_KMEM_SIZE becomes optional.
Replace or eliminate all existing definitions of VM_KMEM_SIZE. With
auto-sizing enabled, VM_KMEM_SIZE effectively became an alternate spelling
for VM_KMEM_SIZE_MIN on most architectures. Use VM_KMEM_SIZE_MIN for
clarity.
Change kmeminit() so that the effect of defining VM_KMEM_SIZE is similar to
that of setting the tunable vm.kmem_size. Whereas the macros
VM_KMEM_SIZE_{MAX,MIN,SCALE} have had the same effect as the tunables
vm.kmem_size_{max,min,scale}, the effects of VM_KMEM_SIZE and vm.kmem_size
have been distinct. In particular, whereas VM_KMEM_SIZE was overridden by
VM_KMEM_SIZE_{MAX,MIN,SCALE} and vm.kmem_size_{max,min,scale}, vm.kmem_size
was not. Remedy this inconsistency. Now, VM_KMEM_SIZE can be used to set
the size of the kmem arena at compile-time without that value being
overridden by auto-sizing.
Update the nearby comments to reflect the kmem submap being replaced by the
kmem arena. Stop duplicating the auto-sizing formula in every machine-
dependent vmparam.h and place it in kmeminit() where auto-sizing takes
place.
Reviewed by: kib (an earlier version)
Sponsored by: EMC / Isilon Storage Division
|
| 256115 |
07-Oct-2013 |
dim |
Remove redundant declaration of force_evtchn_callback() in the
i386-specific xen-os.h, to silence a gcc warning.
Approved by: re (gjb)
MFC after: 3 days
|
| 256073 |
05-Oct-2013 |
gibbs |
Formalize the concept of virtual CPU ids by adding a per-cpu vcpu_id
field. Perform vcpu enumeration for Xen PV and HVM environments
and convert all Xen drivers to use vcpu_id instead of a hard coded
assumption of the mapping algorithm (acpi or apic ID) in use.
Submitted by: Roger Pau Monné
Sponsored by: Citrix Systems R&D
Reviewed by: gibbs
Approved by: re (blanket Xen)
amd64/include/pcpu.h:
i386/include/pcpu.h:
Add vcpu_id to the amd64 and i386 pcpu structures.
dev/xen/timer/timer.c
x86/xen/xen_intr.c
Use new vcpu_id instead of assuming acpi_id == vcpu_id.
i386/xen/mp_machdep.c:
i386/xen/mptable.c
x86/xen/hvm.c:
Perform Xen HVM and Xen full PV vcpu_id mapping.
x86/xen/hvm.c:
x86/acpica/madt.c
Change SYSINIT ordering of acpi CPU enumeration so that it
is guaranteed to be available at the time of Xen HVM vcpu
id mapping.
|
| 255781 |
22-Sep-2013 |
gibbs |
Fix compilation of the i386 PAE kernel config.
sys/i386/include/xen/xenvar.h:
Provide vtomach() when PAE is defined.
Approved by: re (blanket Xen)
|
| 255744 |
20-Sep-2013 |
gibbs |
Merge Xen PVHVM support into the GENERIC kernel config for both
amd64 and i386.
Submitted by: Roger Pau Monné
Sponsored by: Citrix Systems R&D
Reviewed by: gibbs
Approved by: re (blanket Xen)
MFC after: 2 weeks
sys/amd64/amd64/mp_machdep.c:
sys/amd64/include/cpu.h:
sys/i386/i386/mp_machdep.c:
sys/i386/include/cpu.h:
- Introduce two new CPU hooks for initialization and resume
purposes. This allows us to get rid of the XENHVM ifdefs in
mp_machdep, and also sets some hooks into common code that can be
used by other hypervisor implementations.
sys/amd64/conf/XENHVM:
sys/i386/conf/XENHVM:
- Remove these configs now that GENERIC has builtin support for Xen
HVM.
sys/kern/subr_smp.c:
- Make sure there are no pending IPIs when suspending a system.
sys/x86/xen/hvm.c:
- Add cpu init and resume vectors that are called from mp_machdep
using the new hooks.
- Only clear the vcpu_info mapping data on resume. It is already
clear for the BSP on a cold boot and is set correctly as APs
are started.
- Gate xen_hvm_init_cpu only to systems running under Xen.
sys/x86/xen/xen_intr.c:
- Gate the setup of event channels only to systems running under Xen.
|
| 255726 |
20-Sep-2013 |
gibbs |
Add support for suspend/resume/migration operations when running as a
Xen PVHVM guest.
Submitted by: Roger Pau Monné
Sponsored by: Citrix Systems R&D
Reviewed by: gibbs
Approved by: re (blanket Xen)
MFC after: 2 weeks
sys/amd64/amd64/mp_machdep.c:
sys/i386/i386/mp_machdep.c:
- Make sure that are no MMU related IPIs pending on migration.
- Reset pending IPI_BITMAP on resume.
- Init vcpu_info on resume.
sys/amd64/include/intr_machdep.h:
sys/i386/include/intr_machdep.h:
sys/x86/acpica/acpi_wakeup.c:
sys/x86/x86/intr_machdep.c:
sys/x86/isa/atpic.c:
sys/x86/x86/io_apic.c:
sys/x86/x86/local_apic.c:
- Add a "suspend_cancelled" parameter to pic_resume(). For the
Xen PIC, restoration of interrupt services differs between
the aborted suspend and normal resume cases, so we must provide
this information.
sys/dev/acpica/acpi_timer.c:
sys/dev/xen/timer/timer.c:
sys/timetc.h:
- Don't swap out "suspend safe" timers across a suspend/resume
cycle. This includes the Xen PV and ACPI timers.
sys/dev/xen/control/control.c:
- Perform proper suspend/resume process for PVHVM:
- Suspend all APs before going into suspension, this allows us
to reset the vcpu_info on resume for each AP.
- Reset shared info page and callback on resume.
sys/dev/xen/timer/timer.c:
- Implement suspend/resume support for the PV timer. Since FreeBSD
doesn't perform a per-cpu resume of the timer, we need to call
smp_rendezvous in order to correctly resume the timer on each CPU.
sys/dev/xen/xenpci/xenpci.c:
- Don't reset the PCI interrupt on each suspend/resume.
sys/kern/subr_smp.c:
- When suspending a PVHVM domain make sure there are no MMU IPIs
in-flight, or we will get a lockup on resume due to the fact that
pending event channels are not carried over on migration.
- Implement a generic version of restart_cpus that can be used by
suspended and stopped cpus.
sys/x86/xen/hvm.c:
- Implement resume support for the hypercall page and shared info.
- Clear vcpu_info so it can be reset by APs when resuming from
suspension.
sys/dev/xen/xenpci/xenpci.c:
sys/x86/xen/hvm.c:
sys/x86/xen/xen_intr.c:
- Support UP kernel configurations.
sys/x86/xen/xen_intr.c:
- Properly rebind per-cpus VIRQs and IPIs on resume.
|
| 255331 |
06-Sep-2013 |
gibbs |
Implement PV IPIs for PVHVM guests and further converge PV and HVM
IPI implmementations.
Submitted by: Roger Pau Monné
Sponsored by: Citrix Systems R&D
Submitted by: gibbs (misc cleanup, table driven config)
Reviewed by: gibbs
MFC after: 2 weeks
sys/amd64/include/cpufunc.h:
sys/amd64/amd64/pmap.c:
Move invltlb_globpcid() into cpufunc.h so that it can be
used by the Xen HVM version of tlb shootdown IPI handlers.
sys/x86/xen/xen_intr.c:
sys/xen/xen_intr.h:
Rename xen_intr_bind_ipi() to xen_intr_alloc_and_bind_ipi(),
and remove the ipi vector parameter. This api allocates
an event channel port that can be used for ipi services,
but knows nothing of the actual ipi for which that port
will be used. Removing the unused argument and cleaning
up the comments surrounding its declaration helps clarify
its actual role.
sys/amd64/amd64/mp_machdep.c:
sys/amd64/include/cpu.h:
sys/i386/i386/mp_machdep.c:
sys/i386/include/cpu.h:
Implement a generic framework for amd64 and i386 that allows
the implementation of certain CPU management functions to
be selected at runtime. Currently this is only used for
the ipi send function, which we optimize for Xen when running
on a Xen hypervisor, but can easily be expanded to support
more operations.
sys/x86/xen/hvm.c:
Implement Xen PV IPI handlers and operations, replacing native
send IPI.
sys/amd64/include/pcpu.h:
sys/i386/include/pcpu.h:
sys/i386/include/smp.h:
Remove NR_VIRQS and NR_IPIS from FreeBSD headers. NR_VIRQS
is defined already for us in the xen interface files.
NR_IPIS is only needed in one file per Xen platform and is
easily inferred by the IPI vector table that is defined in
those files.
sys/i386/xen/mp_machdep.c:
Restructure to more closely match the HVM implementation by
performing table driven IPI setup.
|
| 255318 |
06-Sep-2013 |
glebius |
Fix build with gcc. Move sf_buf_alloc()/sf_buf_free() declarations
to MD headers.
|
| 255046 |
29-Aug-2013 |
gibbs |
Introduce a new, HVM compatible, paravirtualized timer driver for Xen.
Use this new driver for both PV and HVM instances.
This driver requires a Xen hypervisor that supports vector callbacks,
VCPUOP hypercalls, and reports that it has a "safe PV clock".
New timer driver:
Submitted by: will
Sponsored by: Spectra Logic Corporation
PV port to new driver, and bug fixes:
Submitted by: Roger Pau Monné
Sponsored by: Citrix Systems R&D
sys/dev/xen/timer/timer.c:
- Register a PV timer device driver which (currently)
implements device_{identify,probe,attach} and stubs
device_detach. The detach routine requires functionality
not provided by timecounters(4). The suspend and resume
routines need additional work (due to Xen requiring that
the hypercalls be executed on the target VCPU), and aren't
needed for our purposes.
- Make sure there can only be one device instance of this
driver, and that it only registers one eventtimers(4) and
one timecounters(4) device interface. Make both interfaces
use PCPU data as needed.
- Match, with a few style cleanups & API differences, the
Xen versions of the "fetch time" functions.
- Document the magic scale_delta() better for the i386 version.
- When registering the event timer, bind a separate event
channel for the timer VIRQ to the device's event timer
interrupt handler for each active VCPU. Describe each
interrupt as "xen_et:c%d", so they can be identified per
CPU in "vmstat -i" or "show intrcnt" in KDB.
- When scheduling a timer into the hypervisor, try up to
60 times if the hypervisor rejects the time as being in
the past. In the common case, this retry shouldn't happen,
and if it does, it should only happen once. This is
because the event timer advertises a minimum period of
100usec, which is only less than the usual hypercall round
trip time about 1 out of every 100 tries. (Unlike other
similar drivers, this one actually checks whether the
hypervisor accepted the singleshot timer set hypercall.)
- Implement a RTC PV clock based on the hypervisor wallclock.
sys/conf/files:
- Add dev/xen/timer/timer.c if the kernel configuration
includes either the XEN or XENHVM options.
sys/conf/files.i386:
sys/i386/include/xen/xen_clock_util.h:
sys/i386/xen/clock.c:
sys/i386/xen/xen_clock_util.c:
sys/i386/xen/mp_machdep.c:
sys/i386/xen/xen_rtc.c:
- Remove previous PV timer used in i386 XEN PV kernels, the
new timer introduced in this change is used instead (so
we share the same code between PVHVM and PV).
MFC after: 2 weeks
|
| 255040 |
29-Aug-2013 |
gibbs |
Implement vector callback for PVHVM and unify event channel implementations
Re-structure Xen HVM support so that:
- Xen is detected and hypercalls can be performed very
early in system startup.
- Xen interrupt services are implemented using FreeBSD's native
interrupt delivery infrastructure.
- the Xen interrupt service implementation is shared between PV
and HVM guests.
- Xen interrupt handlers can optionally use a filter handler
in order to avoid the overhead of dispatch to an interrupt
thread.
- interrupt load can be distributed among all available CPUs.
- the overhead of accessing the emulated local and I/O apics
on HVM is removed for event channel port events.
- a similar optimization can eventually, and fairly easily,
be used to optimize MSI.
Early Xen detection, HVM refactoring, PVHVM interrupt infrastructure,
and misc Xen cleanups:
Sponsored by: Spectra Logic Corporation
Unification of PV & HVM interrupt infrastructure, bug fixes,
and misc Xen cleanups:
Submitted by: Roger Pau Monné
Sponsored by: Citrix Systems R&D
sys/x86/x86/local_apic.c:
sys/amd64/include/apicvar.h:
sys/i386/include/apicvar.h:
sys/amd64/amd64/apic_vector.S:
sys/i386/i386/apic_vector.s:
sys/amd64/amd64/machdep.c:
sys/i386/i386/machdep.c:
sys/i386/xen/exception.s:
sys/x86/include/segments.h:
Reserve IDT vector 0x93 for the Xen event channel upcall
interrupt handler. On Hypervisors that support the direct
vector callback feature, we can request that this vector be
called directly by an injected HVM interrupt event, instead
of a simulated PCI interrupt on the Xen platform PCI device.
This avoids all of the overhead of dealing with the emulated
I/O APIC and local APIC. It also means that the Hypervisor
can inject these events on any CPU, allowing upcalls for
different ports to be handled in parallel.
sys/amd64/amd64/mp_machdep.c:
sys/i386/i386/mp_machdep.c:
Map Xen per-vcpu area during AP startup.
sys/amd64/include/intr_machdep.h:
sys/i386/include/intr_machdep.h:
Increase the FreeBSD IRQ vector table to include space
for event channel interrupt sources.
sys/amd64/include/pcpu.h:
sys/i386/include/pcpu.h:
Remove Xen HVM per-cpu variable data. These fields are now
allocated via the dynamic per-cpu scheme. See xen_intr.c
for details.
sys/amd64/include/xen/hypercall.h:
sys/dev/xen/blkback/blkback.c:
sys/i386/include/xen/xenvar.h:
sys/i386/xen/clock.c:
sys/i386/xen/xen_machdep.c:
sys/xen/gnttab.c:
Prefer FreeBSD primatives to Linux ones in Xen support code.
sys/amd64/include/xen/xen-os.h:
sys/i386/include/xen/xen-os.h:
sys/xen/xen-os.h:
sys/dev/xen/balloon/balloon.c:
sys/dev/xen/blkback/blkback.c:
sys/dev/xen/blkfront/blkfront.c:
sys/dev/xen/console/xencons_ring.c:
sys/dev/xen/control/control.c:
sys/dev/xen/netback/netback.c:
sys/dev/xen/netfront/netfront.c:
sys/dev/xen/xenpci/xenpci.c:
sys/i386/i386/machdep.c:
sys/i386/include/pmap.h:
sys/i386/include/xen/xenfunc.h:
sys/i386/isa/npx.c:
sys/i386/xen/clock.c:
sys/i386/xen/mp_machdep.c:
sys/i386/xen/mptable.c:
sys/i386/xen/xen_clock_util.c:
sys/i386/xen/xen_machdep.c:
sys/i386/xen/xen_rtc.c:
sys/xen/evtchn/evtchn_dev.c:
sys/xen/features.c:
sys/xen/gnttab.c:
sys/xen/gnttab.h:
sys/xen/hvm.h:
sys/xen/xenbus/xenbus.c:
sys/xen/xenbus/xenbus_if.m:
sys/xen/xenbus/xenbusb_front.c:
sys/xen/xenbus/xenbusvar.h:
sys/xen/xenstore/xenstore.c:
sys/xen/xenstore/xenstore_dev.c:
sys/xen/xenstore/xenstorevar.h:
Pull common Xen OS support functions/settings into xen/xen-os.h.
sys/amd64/include/xen/xen-os.h:
sys/i386/include/xen/xen-os.h:
sys/xen/xen-os.h:
Remove constants, macros, and functions unused in FreeBSD's Xen
support.
sys/xen/xen-os.h:
sys/i386/xen/xen_machdep.c:
sys/x86/xen/hvm.c:
Introduce new functions xen_domain(), xen_pv_domain(), and
xen_hvm_domain(). These are used in favor of #ifdefs so that
FreeBSD can dynamically detect and adapt to the presence of
a hypervisor. The goal is to have an HVM optimized GENERIC,
but more is necessary before this is possible.
sys/amd64/amd64/machdep.c:
sys/dev/xen/xenpci/xenpcivar.h:
sys/dev/xen/xenpci/xenpci.c:
sys/x86/xen/hvm.c:
sys/sys/kernel.h:
Refactor magic ioport, Hypercall table and Hypervisor shared
information page setup, and move it to a dedicated HVM support
module.
HVM mode initialization is now triggered during the
SI_SUB_HYPERVISOR phase of system startup. This currently
occurs just after the kernel VM is fully setup which is
just enough infrastructure to allow the hypercall table
and shared info page to be properly mapped.
sys/xen/hvm.h:
sys/x86/xen/hvm.c:
Add definitions and a method for configuring Hypervisor event
delievery via a direct vector callback.
sys/amd64/include/xen/xen-os.h:
sys/x86/xen/hvm.c:
sys/conf/files:
sys/conf/files.amd64:
sys/conf/files.i386:
Adjust kernel build to reflect the refactoring of early
Xen startup code and Xen interrupt services.
sys/dev/xen/blkback/blkback.c:
sys/dev/xen/blkfront/blkfront.c:
sys/dev/xen/blkfront/block.h:
sys/dev/xen/control/control.c:
sys/dev/xen/evtchn/evtchn_dev.c:
sys/dev/xen/netback/netback.c:
sys/dev/xen/netfront/netfront.c:
sys/xen/xenstore/xenstore.c:
sys/xen/evtchn/evtchn_dev.c:
sys/dev/xen/console/console.c:
sys/dev/xen/console/xencons_ring.c
Adjust drivers to use new xen_intr_*() API.
sys/dev/xen/blkback/blkback.c:
Since blkback defers all event handling to a taskqueue,
convert this task queue to a "fast" taskqueue, and schedule
it via an interrupt filter. This avoids an unnecessary
ithread context switch.
sys/xen/xenstore/xenstore.c:
The xenstore driver is MPSAFE. Indicate as much when
registering its interrupt handler.
sys/xen/xenbus/xenbus.c:
sys/xen/xenbus/xenbusvar.h:
Remove unused event channel APIs.
sys/xen/evtchn.h:
Remove all kernel Xen interrupt service API definitions
from this file. It is now only used for structure and
ioctl definitions related to the event channel userland
device driver.
Update the definitions in this file to match those from
NetBSD. Implementing this interface will be necessary for
Dom0 support.
sys/xen/evtchn/evtchnvar.h:
Add a header file for implemenation internal APIs related
to managing event channels event delivery. This is used
to allow, for example, the event channel userland device
driver to access low-level routines that typical kernel
consumers of event channel services should never access.
sys/xen/interface/event_channel.h:
sys/xen/xen_intr.h:
Standardize on the evtchn_port_t type for referring to
an event channel port id. In order to prevent low-level
event channel APIs from leaking to kernel consumers who
should not have access to this data, the type is defined
twice: Once in the Xen provided event_channel.h, and again
in xen/xen_intr.h. The double declaration is protected by
__XEN_EVTCHN_PORT_DEFINED__ to ensure it is never declared
twice within a given compilation unit.
sys/xen/xen_intr.h:
sys/xen/evtchn/evtchn.c:
sys/x86/xen/xen_intr.c:
sys/dev/xen/xenpci/evtchn.c:
sys/dev/xen/xenpci/xenpcivar.h:
New implementation of Xen interrupt services. This is
similar in many respects to the i386 PV implementation with
the exception that events for bound to event channel ports
(i.e. not IPI, virtual IRQ, or physical IRQ) are further
optimized to avoid mask/unmask operations that aren't
necessary for these edge triggered events.
Stubs exist for supporting physical IRQ binding, but will
need additional work before this implementation can be
fully shared between PV and HVM.
sys/amd64/amd64/mp_machdep.c:
sys/i386/i386/mp_machdep.c:
sys/i386/xen/mp_machdep.c
sys/x86/xen/hvm.c:
Add support for placing vcpu_info into an arbritary memory
page instead of using HYPERVISOR_shared_info->vcpu_info.
This allows the creation of domains with more than 32 vcpus.
sys/i386/i386/machdep.c:
sys/i386/xen/clock.c:
sys/i386/xen/xen_machdep.c:
sys/i386/xen/exception.s:
Add support for new event channle implementation.
|
| 254623 |
21-Aug-2013 |
jkim |
Reimplement atomic operations on PDEs and PTEs in pmap.h. This change
significantly reduces duplicate code and make it easier to read.
Reviewed by: alc, bde
|
| 254620 |
21-Aug-2013 |
jkim |
Implement atomic_cmpset_64() and atomic_swap_64() for i386.
|
| 254619 |
21-Aug-2013 |
jkim |
Reimplement atomic_load_acq_64() and atomic_store_rel_64() for i386. These
functions are now real functions rather than function pointers. Supposedly,
it is faster for modern processors.
Suggested by: bde
|
| 254618 |
21-Aug-2013 |
jkim |
Remove empty lines before return statements for style consistency.
|
| 254617 |
21-Aug-2013 |
jkim |
Implement atomic_swap() and atomic_testandset().
Reviewed by: arch, bde, jilles, kib
|
| 254614 |
21-Aug-2013 |
jkim |
- Remove the "a" constraint from main output operand for atomic_cmpset().
- Use "+" modifier for the "expect" because it is also an output (unused).
|
| 254612 |
21-Aug-2013 |
jkim |
Use '+' modifier for a memory operand that is both an input and an output.
It was actually done in r86301 but reverted in r150182 because GCC 3.x was
not able to handle it for a memory operand. Apparently, this problem was
fixed in GCC 4.1+ and several contrib sources already rely on this feature.
|
| 254611 |
21-Aug-2013 |
jkim |
Remove bogus labels. No functional change.
|
| 254610 |
21-Aug-2013 |
jkim |
Use consistent style. No functional change.
|
| 254463 |
17-Aug-2013 |
jilles |
libc: Access _logname_valid more efficiently.
The variable _logname_valid is not exported via the version script;
therefore, change C and i386/amd64 assembler code to remove indirection
(which allowed interposition). This makes the code slightly smaller and
faster.
Also, remove #define PIC_GOT from i386/amd64 in !PIC mode. Without PIC,
there is no place containing the address of each variable, so there is no
possible definition for PIC_GOT.
|
| 254305 |
13-Aug-2013 |
jkim |
Merge acpica_machdep.h for amd64 and i386 and move to x86. In fact, these
two files were functionally identical.
|
| 254300 |
13-Aug-2013 |
jkim |
Tidy up global locks for ACPICA. There is no functional change.
|
| 253750 |
28-Jul-2013 |
avg |
Revert r253748,253749
This WIP should not have been committed yet.
Pointyhat to: avg
|
| 253748 |
28-Jul-2013 |
avg |
put contents of cpu.h under _KERNEL
no userland-serviceable parts inside
MFC after: 20 days
|
| 253747 |
28-Jul-2013 |
avg |
x86: detect mwait capabilities and extensions, when present
Reviewed by: kib (earlier amd64-only version)
MFC after: 2 weeks
|
| 252434 |
01-Jul-2013 |
kib |
Fix issues with zeroing and fetching the counters, on x86 and ppc64.
Issues were noted by Bruce Evans and are present on all architectures.
On i386, a counter fetch should use atomic read of 64bit value,
otherwise carry from the increment on other CPU could be lost for the
given fetch, making error of 2^32. If 64bit read (cmpxchg8b) is not
available on the machine, it cannot be SMP and it is enough to disable
preemption around read to avoid the split read.
On x86 the counter increment is not atomic on purpose, which makes it
possible for the store of the incremented result to override just
zeroed per-cpu slot. The effect would be a counter going off by
arbitrary value after zeroing. Perform the counter zeroing on the
same processor which does the increments, making the operations
mutually exclusive. On i386, same as for the fetching, if the
cmpxchg8b is not available, machine is not SMP and we disable
preemption for zeroing.
PowerPC64 is treated the same as amd64.
For other architectures, the changes made to allow the compilation to
succeed, without fixing the issues with zeroing or fetching. It
should be possible to handle them by using the 64bit loads and stores
atomic WRT preemption (assuming the architectures also converted from
using critical sections to proper asm). If architecture does not
provide the facility, using global (spin) mutex would be non-optimal
but working solution.
Noted by: bde
Sponsored by: The FreeBSD Foundation
|
| 252280 |
27-Jun-2013 |
jkim |
Move definitions required by userland applications out of acpica_machdep.h.
|
| 251824 |
17-Jun-2013 |
gibbs |
Adjust i386 Xen PV support for updated Xen interface files.
sys/i386/include/xen/xenvar.h:
sys/i386/xen/xen_machdep.c:
sys/xen/interface/foreign/structs.py:
sys/xen/evtchn/evtchn.c:
MAX_VIRT_CPUS => XEN_LEGACY_MAX_VCPUS
Submitted by: Roger Pau Monné
Reviewed by: gibbs
|
| 251767 |
14-Jun-2013 |
gibbs |
Upgrade Xen interface headers to Xen 4.2.1.
Move FreeBSD from interface version 0x00030204 to 0x00030208.
Updates are required to our grant table implementation before we
can bump this further.
sys/xen/hvm.h:
Replace the implementation of hvm_get_parameter(), formerly located
in sys/xen/interface/hvm/params.h. Linux has a similar file which
primarily stores this function.
sys/xen/xenstore/xenstore.c:
Include new xen/hvm.h header file to get hvm_get_parameter().
sys/amd64/include/xen/xen-os.h:
sys/i386/include/xen/xen-os.h:
Correctly protect function definition and variables from being
included into assembly files in xen-os.h
Xen memory barriers are now prefixed with "xen_" to avoid conflicts
with OS native primatives. Define Xen memory barriers in terms of
the native FreeBSD primatives.
Sponsored by: Spectra Logic Corporation
Reviewed by: Roger Pau Monné
Tested by: Roger Pau Monné
Obtained from: Roger Pau Monné (bug fixes)
|
| 250840 |
21-May-2013 |
marcel |
Add basic support for FDT to i386 & amd64. This change includes:
1. Common headers for fdt.h and ofw_machdep.h under x86/include
with indirections under i386/include and amd64/include.
2. New modinfo for loader provided FDT blob.
3. Common x86_init_fdt() called from hammer_time() on amd64 and
init386() on i386.
4. Split-off FDT specific low-level console functions from FDT
bus methods for the uart(4) driver. The low-level console
logic has been moved to uart_cpu_fdt.c and is used for arm,
mips & powerpc only. The FDT bus methods are shared across
all architectures.
5. Add dev/fdt/fdt_x86.c to hold the fdt_fixup_table[] and the
fdt_pic_table[] arrays. Both are empty right now.
FDT addresses are I/O ports on x86. Since the core FDT code does
not handle different address spaces, adding support for both I/O
ports and memory addresses requires some thought and discussion.
It may be better to use a compile-time option that controls this.
Obtained from: Juniper Networks, Inc.
|
| 250338 |
07-May-2013 |
attilio |
Rename VM_NDOMAIN into MAXMEMDOM and move it into machine/param.h in
order to match the MAXCPU concept. The change should also be useful
for consolidation and consistency.
Sponsored by: EMC / Isilon storage division
Obtained from: jeff
Reviewed by: alc
|
| 249722 |
21-Apr-2013 |
tijl |
Remove redundant definitions of _ALIGN and _ALIGNBYTES.
|
| 249314 |
09-Apr-2013 |
kib |
Pass the segmented address of the counter, based on %fs, i.e. offset
from the pcpu[0] to the counter base, instead of the linear address.
|
| 249268 |
08-Apr-2013 |
glebius |
Merge from projects/counters: counter(9).
Introduce counter(9) API, that implements fast and raceless counters,
provided (but not limited to) for gathering of statistical data.
See http://lists.freebsd.org/pipermail/freebsd-arch/2013-April/014204.html
for more details.
In collaboration with: kib
Reviewed by: luigi
Tested by: ae, ray
Sponsored by: Nginx, Inc.
|
| 249265 |
08-Apr-2013 |
glebius |
Merge from projects/counters:
Pad struct pcpu so that its size is denominator of PAGE_SIZE. This
is done to reduce memory waste in UMA_PCPU_ZONE zones.
Sponsored by: Nginx, Inc.
|
| 248789 |
27-Mar-2013 |
kib |
Fix the VM_BCACHE_SIZE_MAX definition on i386 to match the maximal
buffer map size, auto-tuned on the 4GB machine. Having the maxbcache
bigger than the buffer map causes the transient bio map sizing logic
to assume that there is enough KVA to use approximately 90MB (buffer
map is sized to 110MB, and maxbcache is 200MB). The increase in the
KVA usage caused other big KVA consumers, like nvidia.ko, to fail the
initialization.
Change the definition for both PAE and non-PAE cases, since PAE is
even more KVA-starved.
Reported and tested by: David Wolfskill
Discussed with: alc
Sponsored by: The FreeBSD Foundation
|
| 248449 |
18-Mar-2013 |
attilio |
Sync back vmcontention branch into HEAD:
Replace the per-object resident and cached pages splay tree with a
path-compressed multi-digit radix trie.
Along with this, switch also the x86-specific handling of idle page
tables to using the radix trie.
This change is supposed to do the following:
- Allowing the acquisition of read locking for lookup operations of the
resident/cached pages collections as the per-vm_page_t splay iterators
are now removed.
- Increase the scalability of the operations on the page collections.
The radix trie does rely on the consumers locking to ensure atomicity of
its operations. In order to avoid deadlocks the bisection nodes are
pre-allocated in the UMA zone. This can be done safely because the
algorithm needs at maximum one new node per insert which means the
maximum number of the desired nodes is the number of available physical
frames themselves. However, not all the times a new bisection node is
really needed.
The radix trie implements path-compression because UFS indirect blocks
can lead to several objects with a very sparse trie, increasing the number
of levels to usually scan. It also helps in the nodes pre-fetching by
introducing the single node per-insert property.
This code is not generalized (yet) because of the possible loss of
performance by having much of the sizes in play configurable.
However, efforts to make this code more general and then reusable in
further different consumers might be really done.
The only KPI change is the removal of the function vm_page_splay() which
is now reaped.
The only KBI change, instead, is the removal of the left/right iterators
from struct vm_page, which are now reaped.
Further technical notes broken into mealpieces can be retrieved from the
svn branch:
http://svn.freebsd.org/base/user/attilio/vmcontention/
Sponsored by: EMC / Isilon storage division
In collaboration with: alc, jeff
Tested by: flo, pho, jhb, davide
Tested by: ian (arm)
Tested by: andreast (powerpc)
|
| 247622 |
02-Mar-2013 |
attilio |
Merge from vmc-playground branch:
Rename the pv_entry_t iterator from pv_list to pv_next.
Besides being more correct technically (as the name seems to suggest
this is a list while it is an iterator), it will also be needed by
vm_radix work to avoid a nameclash on macro expansions.
Sponsored by: EMC / Isilon storage division
Reviewed by: alc, jeff
Tested by: flo, pho, jhb, davide
|
| 247047 |
20-Feb-2013 |
kib |
Convert machine/elf.h, machine/frame.h, machine/sigframe.h,
machine/signal.h and machine/ucontext.h into common x86 includes,
copying from amd64 and merging with i386.
Kernel-only compat definitions are kept in the i386/include/sigframe.h
and i386/include/signal.h, to reduce amd64 kernel namespace pollution.
The amd64 compat uses its own definitions so far.
The _MACHINE_ELF_WANT_32BIT definition is to allow the
sys/boot/userboot/userboot/elf32_freebsd.c to use i386 ELF definitions
on the amd64 compile host. The same hack could be usefully abused by
other code too.
|
| 246247 |
02-Feb-2013 |
avg |
x86 suspend/resume: suspend pics and pseudo-pics in reverse order
- change 'pics' from STAILQ to TAILQ
- ensure that Local APIC is always first in 'pics'
Reviewed by: jhb
Tested by: Sergey V. Dyatko <sergey.dyatko@gmail.com>,
KAHO Toshikazu <kaho@elam.kais.kyoto-u.ac.jp>
MFC after: 12 days
|
| 246207 |
01-Feb-2013 |
andre |
Remove unused VM_MAX_AUTOTUNE_NMBCLUSTERS define.
|
| 244191 |
13-Dec-2012 |
jimharris |
Revert r243960 based on feedback regarding keeping x86 headers unified
(mdf@, tijl@) and use of KASSERT/systm.h in bus.h (zeising@, bde@).
Alternate implementation will be made in a separate commit.
|
| 243960 |
06-Dec-2012 |
jimharris |
Add amd64 implementations for 8-byte bus_space routines.
Submitted by: Carl Delsey <carl.r.delsey@intel.com>
Discussed with: jhb, rwatson
Reviewed by: jimharris
MFC after: 1 week
|
| 242847 |
10-Nov-2012 |
alfred |
Allow maxusers to scale on machines with large address space.
Some hooks are added to clamp down maxusers and nmbclusters for
small address space systems.
VM_MAX_AUTOTUNE_MAXUSERS - the max maxusers that will be autotuned based on
physical memory.
VM_MAX_AUTOTUNE_NMBCLUSTERS - max nmbclusters based on physical memory.
These are set to the old values on i386 to preserve the clamping that was
being done to all arches.
Another macro VM_AUTOTUNE_NMBCLUSTERS is provided to allow an override
for the calculation on a MD basis. Currently no arch defines this.
Reviewed by: peter
MFC after: 2 weeks
|
| 241374 |
09-Oct-2012 |
attilio |
Add an unified macro to deny ability from the compiler to reorder
instruction loads/stores at its will.
The macro __compiler_membar() is currently supported for both gcc and
clang, but kernel compilation will fail otherwise.
Reviewed by: bde, kib
Discussed with: dim, theraven
MFC after: 2 weeks
|
| 241371 |
09-Oct-2012 |
attilio |
Reverts r234074,234105,234564,234723,234989,235231-235232 and part of
r234247.
Use, instead, the static intializer introduced in r239923 for x86 and
sparc64 intr_cpus, unwinding the code to the initial version.
Reviewed by: marius
|
| 241027 |
28-Sep-2012 |
jhb |
- Re-shuffle the <machine/pc/bios.h> headers to move all kernel-specific
bits under #ifdef _KERNEL but leave definitions for various structures
defined by standards ($PIR table, SMAP entries, etc.) available to
userland.
- Consolidate duplicate SMBIOS table structure definitions in ipmi(4)
and smbios(4) in <machine/pc/bios.h> and make them available to
userland.
MFC after: 2 weeks
|
| 240520 |
14-Sep-2012 |
eadler |
s/teh/the/g
Approved by: cperciva
MFC after: 3 days
|
| 239730 |
27-Aug-2012 |
des |
Parly revert r239255: reinstate a default maxswzone on i386, where KVA is
scarce, but set it slightly higher so we can handle 8 GB of swap.
|
| 239255 |
14-Aug-2012 |
des |
As discussed on -current, remove the hardcoded default maxswzone.
MFC after: 3 weeks
|
| 238972 |
01-Aug-2012 |
kib |
Add lfence().
MFC after: 1 week
|
| 238792 |
26-Jul-2012 |
kib |
MFamd64 r238623:
Introduce curpcb magic variable.
Requested and reviewed by: bde
MFC after: 3 weeks
|
| 238678 |
21-Jul-2012 |
kib |
MFCamd64 r238598:
Provide siginfo.si_code for floating point errors when error occurs
using the SSE math processor.
MFC after: 3 weeks
|
| 238311 |
09-Jul-2012 |
jhb |
Add a clts() wrapper around the 'clts' instruction to <machine/cpufunc.h>
on x86 and use that to implement stop_emulating() in the fpu/npx code.
Reimplement start_emulating() in the non-XEN case by using load_cr0() and
rcr0() instead of the 'lmsw' and 'smsw' instructions. Intel explicitly
discourages the use of 'lmsw' and 'smsw' on 80386 and later processors in
the description of these instructions in Volume 2 of the ADM.
Reviewed by: kib
MFC after: 1 month
|
| 237435 |
22-Jun-2012 |
kib |
Enable shared page on i386, now it has a use for vdso_timehands.
MFC after: 1 month
|
| 237433 |
22-Jun-2012 |
kib |
Implement mechanism to export some kernel timekeeping data to
usermode, using shared page. The structures and functions have vdso
prefix, to indicate the intended location of the code in some future.
The versioned per-algorithm data is exported in the format of struct
vdso_timehands, which mostly repeats the content of in-kernel struct
timehands. Usermode reading of the structure can be lockless.
Compatibility export for 32bit processes on 64bit host is also
provided. Kernel also provides usermode with indication about
currently used timecounter, so that libc can fall back to syscall if
configured timecounter is unknown to usermode code.
The shared data updates are initiated both from the tc_windup(), where
a fast task is queued to do the update, and from sysctl handlers which
change timecounter. A manual override switch
kern.timecounter.fast_gettime allows to turn off the mechanism.
Only x86 architectures export the real algorithm data, and there, only
for tsc timecounter. HPET counters page could be exported as well, but
I prefer to not further glue the kernel and libc ABI there until
proper vdso-based solution is developed.
Minimal stubs neccessary for non-x86 architectures to still compile
are provided.
Discussed with: bde
Reviewed by: jhb
Tested by: flo
MFC after: 1 month
|
| 237430 |
22-Jun-2012 |
kib |
Reserve AT_TIMEKEEP auxv entry for providing usermode the pointer to
timekeeping information.
MFC after: 1 week
|
| 237168 |
16-Jun-2012 |
alc |
The page flag PGA_WRITEABLE is set and cleared exclusively by the pmap
layer, but it is read directly by the MI VM layer. This change introduces
pmap_page_is_write_mapped() in order to completely encapsulate all direct
access to PGA_WRITEABLE in the pmap layer.
Aesthetics aside, I am making this change because amd64 will likely begin
using an alternative method to track write mappings, and having
pmap_page_is_write_mapped() in place allows me to make such a change
without further modification to the MI VM layer.
As an added bonus, tidy up some nearby comments concerning page flags.
Reviewed by: kib
MFC after: 6 weeks
|
| 237027 |
13-Jun-2012 |
jkim |
- Fix resumectx() prototypes to reflect reality.
- For i386, simply jump to resumectx() with PCB in %ecx.
- Fix a style(9) nit while I am here.
|
| 236938 |
12-Jun-2012 |
iwasaki |
Share IPI init and startup code of mp_machdep.c with acpi_wakeup.c
as ipi_startup().
|
| 236772 |
09-Jun-2012 |
iwasaki |
Add x86/acpica/acpi_wakeup.c for amd64 and i386. Difference of
suspend/resume procedures are minimized among them.
common:
- Add global cpuset suspended_cpus to indicate APs are suspended/resumed.
- Remove acpi_waketag and acpi_wakemap from acpivar.h (no longer used).
- Add some variables in acpi_wakecode.S in order to minimize the difference
among amd64 and i386.
- Disable load_cr3() because now CR3 is restored in resumectx().
amd64:
- Add suspend/resume related members (such as MSR) in PCB.
- Modify savectx() for above new PCB members.
- Merge acpi_switch.S into cpu_switch.S as resumectx().
i386:
- Merge(and remove) suspendctx() into savectx() in order to match with
amd64 code.
Reviewed by: attilio@, acpi@
|
| 236456 |
02-Jun-2012 |
kib |
Use plain store for atomic_store_rel on x86, instead of implicitly
locked xchg instruction. IA32 memory model guarantees that store has
release semantic, since stores cannot pass loads or stores.
Reviewed by: bde, jhb
Tested by: pho
MFC after: 2 weeks
|
| 236045 |
26-May-2012 |
alc |
Rename pmap_collect() to pmap_pv_reclaim() and rewrite it such that it no
longer uses the active and inactive paging queues. Instead, the pmap now
maintains an LRU-ordered list of pv entry pages, and pmap_pv_reclaim() uses
this list to select pv entries for reclamation.
Note: The old pmap_collect() tried to avoid reclaiming mappings for pages
that have either a hold_count or a busy field that is non-zero. However,
this isn't necessary for correctness, and the locking in pmap_collect() was
insufficient to guarantee that such mappings weren't reclaimed. The new
pmap_pv_reclaim() doesn't even try.
MFC after: 5 weeks
|
| 235941 |
24-May-2012 |
bz |
MFp4 bz_ipv6_fast:
in_cksum.h required ip.h to be included for struct ip. To be
able to use some general checksum functions like in_addword()
in a non-IPv4 context, limit the (also exported to user space)
IPv4 specific functions to the times, when the ip.h header is
present and IPVERSION is defined (to 4).
We should consider more general checksum (updating) functions
to also allow easier incremental checksum updates in the L3/4
stack and firewalls, as well as ponder further requirements by
certain NIC drivers needing slightly different pseudo values
in offloading cases. Thinking in terms of a better "library".
Sponsored by: The FreeBSD Foundation
Sponsored by: iXsystems
Reviewed by: gnn (as part of the whole)
MFC After: 3 days
|
| 235683 |
20-May-2012 |
iwasaki |
Remove cpususpend IDT vector for XEN.
This broke XEN kernel building.
|
| 235622 |
18-May-2012 |
iwasaki |
Add SMP/i386 suspend/resume support.
Most part is merged from amd64.
- i386/acpica/acpi_wakecode.S
Replaced with amd64 code (from realmode to paging enabling code).
- i386/acpica/acpi_wakeup.c
Replaced with amd64 code (except for wakeup_pagetables stuff).
- i386/include/pcb.h
- i386/i386/genassym.c
Added PCB new members (CR0, CR2, CR4, DS, ED, FS, SS, GDT, IDT, LDT
and TR) needed for suspend/resume, not for context switch.
- i386/i386/swtch.s
Added suspendctx() and resumectx().
Note that savectx() was not changed and used for suspending (while
amd64 code uses it).
BSP and AP execute the same sequence, suspendctx(), acpi_wakecode()
and resumectx() for suspend/resume (in case of UP system also).
- i386/i386/apic_vector.s
Added cpususpend().
- i386/i386/mp_machdep.c
- i386/include/smp.h
Added cpususpend_handler().
- i386/include/apicvar.h
- kern/subr_smp.c
- sys/smp.h
Added IPI_SUSPEND and suspend_cpus().
- i386/i386/initcpu.c
- i386/i386/machdep.c
- i386/include/md_var.h
- pc98/pc98/machdep.c
Moved initializecpu() declarations to md_var.h.
MFC after: 3 days
|
| 235391 |
13-May-2012 |
avg |
i386 bootinfo: re-arrange EFI fields for natural alignment and packing
Suggested by: bde
MFC after: 2 weeks
|
| 234989 |
03-May-2012 |
attilio |
Revert part of r234723 by re-enabling the SMP protection for
intr_bind() on x86.
This has been requested by jhb and I strongly disagree with this,
but as long as he is the x86 and interrupt subsystem maintainer I will
follow his directives.
The disagreement cames from what we should really consider as a
public KPI. IMHO, if we really need a selection between the kernel
functions, we may need an explicit protection like _KERNEL_KPI, which
defines which subset of the kernel function might really be considered
as part of the KPI (for thirdy part modules) and which not.
As long as we don't have this mechanism I just consider any possible
function as usable by thirdy part code, thus intr_bind() included.
MFC after: 1 week
|
| 234785 |
29-Apr-2012 |
dim |
Add a convenience macro for the returns_twice attribute, and apply it to
the prototypes of the appropriate functions (getcontext, savectx,
setjmp, sigsetjmp and vfork).
MFC after: 2 weeks
|
| 234723 |
26-Apr-2012 |
attilio |
Clean up the intr* MD KPI from the SMP dependency, removing a cause of
discrepancy between modules and kernel, but deal with SMP differences
within the functions themselves.
As an added bonus this also helps in terms of code readability.
Requested by: gibbs
Reviewed by: jhb, marius
MFC after: 1 week
|
| 234207 |
13-Apr-2012 |
avg |
bump INTRCNT_COUNT values to reflect actual numbers of IPI counters
Maybe the numbers should be conditionalized on COUNT_IPIS
Reviewed by: jhb
MFC after: 1 week
|
| 233707 |
30-Mar-2012 |
jhb |
Move the legacy(4) driver to x86.
|
| 233676 |
29-Mar-2012 |
jhb |
Use a more proper fix for enabling HT MSI mapping windows on Host-PCI
bridges. Rather than blindly enabling the windows on all of them, only
enable the window when an MSI interrupt is enabled for a device behind
the bridge, similar to what already happens for HT PCI-PCI bridges.
To implement this, each x86 Host-PCI bridge driver has to be able to
locate it's actual backing device on bus 0. For ACPI, use the _ADR
method to find the slot and function of the device. For the non-ACPI
case, the legacy(4) driver already scans bus 0 looking for Host-PCI
bridge devices. Now it saves the slot and function of each bridge that
it finds as ivars that the Host-PCI bridge driver can then use in its
pcib_map_msi() method.
This fixes machines where non-MSI interrupts were broken by the previous
round of HT MSI changes.
Tested by: bapt
MFC after: 1 week
|
| 233671 |
29-Mar-2012 |
jhb |
- Rename VM_MEMATTR_UNCACHED to VM_MEMATTR_WEAK_UNCACHEABLE on x86 to
be less ambiguous and more clearly identify what it means. This
attribute is what Intel refers to as UC-, and it's only difference
relative to normal UC memory is that a WC MTRR will override a UC-
PAT entry causing the memory to be treated as WC, whereas a UC PAT
entry will always override the MTRR.
- Remove the VM_MEMATTR_UNCACHED alias from powerpc.
|
| 233628 |
28-Mar-2012 |
fabient |
Add software PMC support.
New kernel events can be added at various location for sampling or counting.
This will for example allow easy system profiling whatever the processor is
with known tools like pmcstat(8).
Simultaneous usage of software PMC and hardware PMC is possible, for example
looking at the lock acquire failure, page fault while sampling on
instructions.
Sponsored by: NETASQ
MFC after: 1 month
|
| 233291 |
22-Mar-2012 |
alc |
Handle spurious page faults that may occur in no-fault sections of the
kernel.
When access restrictions are added to a page table entry, we flush the
corresponding virtual address mapping from the TLB. In contrast, when
access restrictions are removed from a page table entry, we do not
flush the virtual address mapping from the TLB. This is exactly as
recommended in AMD's documentation. In effect, when access
restrictions are removed from a page table entry, AMD's MMUs will
transparently refresh a stale TLB entry. In short, this saves us from
having to perform potentially costly TLB flushes. In contrast,
Intel's MMUs are allowed to generate a spurious page fault based upon
the stale TLB entry. Usually, such spurious page faults are handled
by vm_fault() without incident. However, when we are executing
no-fault sections of the kernel, we are not allowed to execute
vm_fault(). This change introduces special-case handling for spurious
page faults that occur in no-fault sections of the kernel.
In collaboration with: kib
Tested by: gibbs (an earlier version)
I would also like to acknowledge Hiroki Sato's assistance in
diagnosing this problem.
MFC after: 1 week
|
| 233209 |
19-Mar-2012 |
tijl |
Copy amd64 sysarch.h to x86 and merge with i386 sysarch.h. Replace
amd64/i386/pc98 sysarch.h with stubs.
|
| 233207 |
19-Mar-2012 |
tijl |
Copy i386 specialreg.h to x86 and merge with amd64 specialreg.h. Replace
amd64/i386/pc98 specialreg.h with stubs.
|
| 233204 |
19-Mar-2012 |
tijl |
Copy i386 psl.h to x86 and replace amd64/i386/pc98 psl.h with stubs.
|
| 233203 |
19-Mar-2012 |
tijl |
Move userland bits (and some common kernel bits) from amd64 and i386
segments.h to a new x86 segments.h.
Add __packed attribute to some structs (just to be sure).
Also make it clear that i386 GDT and LDT entries are used in ia64 code.
|
| 233124 |
18-Mar-2012 |
tijl |
Copy i386 reg.h to x86 and merge with amd64 reg.h. Replace i386/amd64/pc98
reg.h with stubs.
The tREGISTER macros are only made visible on i386. These macros are
deprecated and should not be available on amd64.
The i386 and amd64 versions of struct reg have been renamed to struct
__reg32 and struct __reg64. During compilation either __reg32 or __reg64
is defined as reg depending on the machine architecture. On amd64 the i386
struct is also available as struct reg32 which is used in COMPAT_FREEBSD32
code.
Most of compat/ia32/ia32_reg.h is now IA64 only.
Reviewed by: kib (previous version)
|
| 233123 |
18-Mar-2012 |
tijl |
Use exact width integer types in amd64/i386 reg.h to prepare for a merge.
The only real change is replacing long with int on i386.
|
| 233044 |
16-Mar-2012 |
tijl |
Move userland bits of i386 npx.h and amd64 fpu.h to x86 fpu.h.
Remove FPU types from compat/ia32/ia32_reg.h that are no longer needed.
Create machine/npx.h on amd64 to allow compiling i386 code that uses
this header.
The original npx.h and fpu.h define struct envxmm differently. Both
definitions have been included in the new x86 header as struct __envxmm32
and struct __envxmm64. During compilation either __envxmm32 or __envxmm64
is defined as envxmm depending on machine architecture. On amd64 the i386
struct is also available as struct envxmm32.
Reviewed by: kib
|
| 233043 |
16-Mar-2012 |
tijl |
Use exact width integer types instead of long in struct env87 in
preparation to merge with amd64.
Reviewed by: kib
|
| 233026 |
16-Mar-2012 |
tijl |
Remove prototypes of _amd64_get_fsbase et al. The functions were removed
in r145571.
|
| 232744 |
09-Mar-2012 |
jhb |
Allow a native i386 kernel to be built with 'nodevice atpic'. Just as on
amd64, if 'device isa' is present quiesce the 8259A's during boot and
resume from suspend.
While here, be more selective on amd64 about which kernel configurations
need elcr.c.
MFC after: 2 weeks
|
| 232520 |
04-Mar-2012 |
tijl |
Copy amd64 ptrace.h to x86 and merge with i386 ptrace.h. Replace
amd64/i386/pc98 ptrace.h with stubs.
For amd64 PT_GETXSTATE and PT_SETXSTATE have been redefined to match the
i386 values. The old values are still supported but should no longer be
used.
Reviewed by: kib
|
| 232492 |
04-Mar-2012 |
tijl |
Copy amd64 trap.h to x86 and replace amd64/i386/pc98 trap.h with stubs.
|
| 232491 |
04-Mar-2012 |
tijl |
Copy amd64 float.h to x86 and merge with i386 float.h. Replace
amd64/i386/pc98 float.h with stubs.
|
| 232276 |
28-Feb-2012 |
tijl |
Copy amd64 stdarg.h to x86 and replace amd64/i386/pc98 stdarg.h with stubs.
|
| 232275 |
28-Feb-2012 |
tijl |
Copy amd64 setjmp.h to x86 and replace amd64/i386/pc98 setjmp.h with stubs.
|
| 232266 |
28-Feb-2012 |
tijl |
Copy amd64 endian.h to x86 and merge with i386 endian.h. Replace
amd64/i386/pc98 endian.h with stubs.
In __bswap64_const(x) the conflict between 0xffUL and 0xffULL has been
resolved by reimplementing the macro in terms of __bswap32(x). As a side
effect __bswap64_var(x) is now implemented using two bswap instructions on
i386 and should be much faster. __bswap32_const(x) has been reimplemented
in terms of __bswap16(x) for consistency.
|
| 232264 |
28-Feb-2012 |
tijl |
Copy amd64 _stdint.h to x86 and merge with i386 _stdint.h. Replace
amd64/i386/pc98 _stdint.h with stubs.
|
| 232262 |
28-Feb-2012 |
tijl |
Copy amd64 _limits.h to x86 and merge with i386 _limits.h. Replace
amd64/i386/pc98 _limits.h with stubs.
|
| 232261 |
28-Feb-2012 |
tijl |
Copy amd64 _types.h to x86 and merge with i386 _types.h. Replace existing
amd64/i386/pc98 _types.h with stubs.
|
| 232230 |
27-Feb-2012 |
jhb |
Remove completely duplicate '#ifdef XEN' section.
|
| 232228 |
27-Feb-2012 |
jhb |
Resort the IDT_DTRACE_RET constant after it was changed to be less than
IDT_SYSCALL.
|
| 230916 |
02-Feb-2012 |
ken |
Fix the netback driver build for i386.
netback.c: Add missing VM includes.
xen/xenvar.h,
xen/xenpmap.h: Move some XENHVM macros from <machine/xen/xenpmap.h> to
<machine/xen/xenvar.h> on i386 to match the amd64 headers.
conf/files: Add netback to the build.
Submitted by: jhb
MFC after: 3 days
|
| 230765 |
30-Jan-2012 |
kib |
Synchronize the struct sigcontext definitions on x86 with mcontext_t.
Pointed out by: bde
MFC after: 1 month
|
| 230475 |
23-Jan-2012 |
das |
Add C11 macros describing subnormal numbers to float.h.
Reviewed by: bde
|
| 230426 |
21-Jan-2012 |
kib |
Add support for the extended FPU states on amd64, both for native
64bit and 32bit ABIs. As a side-effect, it enables AVX on capable
CPUs.
In particular:
- Query the CPU support for XSAVE, list of the supported extensions
and the required size of FPU save area. The hw.use_xsave tunable is
provided for disabling XSAVE, and hw.xsave_mask may be used to
select the enabled extensions.
- Remove the FPU save area from PCB and dynamically allocate the
(run-time sized) user save area on the top of the kernel stack,
right above the PCB. Reorganize the thread0 PCB initialization to
postpone it after BSP is queried for save area size.
- The dumppcb, stoppcbs and susppcbs now do not carry the FPU state as
well. FPU state is only useful for suspend, where it is saved in
dynamically allocated suspfpusave area.
- Use XSAVE and XRSTOR to save/restore FPU state, if supported and
enabled.
- Define new mcontext_t flag _MC_HASFPXSTATE, indicating that
mcontext_t has a valid pointer to out-of-struct extended FPU
state. Signal handlers are supplied with stack-allocated fpu
state. The sigreturn(2) and setcontext(2) syscall honour the flag,
allowing the signal handlers to inspect and manipilate extended
state in the interrupted context.
- The getcontext(2) never returns extended state, since there is no
place in the fixed-sized mcontext_t to place variable-sized save
area. And, since mcontext_t is embedded into ucontext_t, makes it
impossible to fix in a reasonable way. Instead of extending
getcontext(2) syscall, provide a sysarch(2) facility to query
extended FPU state.
- Add ptrace(2) support for getting and setting extended state; while
there, implement missed PT_I386_{GET,SET}XMMREGS for 32bit binaries.
- Change fpu_kern KPI to not expose struct fpu_kern_ctx layout to
consumers, making it opaque. Internally, struct fpu_kern_ctx now
contains a space for the extended state. Convert in-kernel consumers
of fpu_kern KPI both on i386 and amd64.
First version of the support for AVX was submitted by Tim Bird
<tim.bird am sony com> on behalf of Sony. This version was written
from scratch.
Tested by: pho (previous version), Yamagi Burmeister <lists yamagi org>
MFC after: 1 month
|
| 230270 |
17-Jan-2012 |
kib |
Add definitions for the FPU extended state header, legacy extended
state and AVX state.
MFC after: 1 week
|
| 230261 |
17-Jan-2012 |
kib |
Add definitions related to XCR0.
MFC after: 1 week
|
| 230132 |
15-Jan-2012 |
uqs |
Convert files to UTF-8
|
| 229562 |
05-Jan-2012 |
ed |
Also import WEAK_ALIAS() from the MIPS code.
|
| 229367 |
03-Jan-2012 |
ed |
Add support for strong aliasing of symbols in i386 assembly.
This macro is a literal copy from the MIPS version of <machine/asm.h>.
|
| 229104 |
31-Dec-2011 |
kib |
Make the comment in i386/include/ucontext.h identical to the one in
amd64/include/ucontext.h. The later is better worded.
Requested by: deischen
MFC after: 3 days
|
| 228469 |
13-Dec-2011 |
ed |
Replace __signed by signed.
The signed keyword is an integral part of the C syntax. There's no need
to use __signed.
|
| 228398 |
10-Dec-2011 |
alc |
Avoid the possibility of integer overflow in the calculation of
VM_KMEM_SIZE_MAX. Specifically, if the user/kernel address space split
was changed such that the kernel address space was greater than or equal
to 2 GB, then overflow would occur.
PR: 161721
MFC after: 3 weeks
|
| 227399 |
09-Nov-2011 |
kib |
Attempt to improve formatting and content of several comments for
amd64 and i386 MD code.
Based on suggestions by: bde
MFC after: 1 week
|
| 227290 |
07-Nov-2011 |
rstone |
Fix the DTrace pid return trap interrupt vector. Previously we were using
31, but that vector is reserved.
Without this fix, running dtrace -p <pid> would either cause the target
process to crash or the kernel to page fault.
Obtained from: rpaulo
MFC after: 3days
|
| 226607 |
21-Oct-2011 |
das |
People porting FreeBSD to new architectures ought not have to
implement a deprecated FPU control interface in addition to the
standard one. To make this clearer, further deprecate ieeefp.h
by not declaring the function prototypes except on architectures
that implement them already.
Currently i386 and amd64 implement the ieeefp.h interface for
compatibility, and for fp[gs]etprec(), which doesn't exist on
most other hardware. Powerpc, sparc64, and ia64 partially implement
it and probably shouldn't, and other architectures don't implement it
at all.
|
| 226112 |
07-Oct-2011 |
kib |
Remove unused define.
MFC after: 1 month
|
| 224207 |
19-Jul-2011 |
attilio |
Add the possibility to specify from kernel configs MAXCPU value.
This patch is going to help in cases like mips flavours where you
want a more granular support on MAXCPU.
No MFC is previewed for this patch.
Tested by: pluknet
Approved by: re (kib)
|
| 223796 |
05-Jul-2011 |
jkim |
Correct cpu_monitor() and cpu_mwait() for amd64. These instructions take
%rcx as "extensions" in long mode. If any unused bit is set in %rcx, these
instructions cause general protection fault. Fix style nits and synchronize
i386 with amd64.
|
| 223440 |
22-Jun-2011 |
jhb |
Move {amd64,i386}/pci/pci_bus.c and {amd64,i386}/include/pci_cfgreg.h to
the x86 tree. The $PIR code is still only enabled on i386 and not amd64.
While here, make the qpi(4) driver on conditional on 'device pci'.
|
| 223433 |
22-Jun-2011 |
jhb |
Oops, missed these in 223424.
Reported by: jkim
|
| 222853 |
08-Jun-2011 |
avg |
remove code for dynamic offlining/onlining of CPUs on x86
The code has definitely been broken for SCHED_ULE, which is a default
scheduler. It may have been broken for SCHED_4BSD in more subtle ways,
e.g. with manually configured CPU affinities and for interrupt devilery
purposes.
We still provide a way to disable individual CPUs or all hyperthreading
"twin" CPUs before SMP startup. See the UPDATING entry for details.
Interaction between building CPU topology and disabling CPUs still
remains fuzzy: topology is first built using all availble CPUs and then
the disabled CPUs should be "subtracted" from it. That doesn't work
well if the resulting topology becomes non-uniform.
This work is done in cooperation with Attilio Rao who in addition to
reviewing also provided parts of code.
PR: kern/145385
Discussed with: gcooper, ambrisko, mdf, sbruno
Reviewed by: attilio
Tested by: pho, pluknet
X-MFC after: never
|
| 222813 |
07-Jun-2011 |
attilio |
etire the cpumask_t type and replace it with cpuset_t usage.
This is intended to fix the bug where cpu mask objects are
capped to 32. MAXCPU, then, can now arbitrarely bumped to whatever
value. Anyway, as long as several structures in the kernel are
statically allocated and sized as MAXCPU, it is suggested to keep it
as low as possible for the time being.
Technical notes on this commit itself:
- More functions to handle with cpuset_t objects are introduced.
The most notable are cpusetobj_ffs() (which calculates a ffs(3)
for a cpuset_t object), cpusetobj_strprint() (which prepares a string
representing a cpuset_t object) and cpusetobj_strscan() (which
creates a valid cpuset_t starting from a string representation).
- pc_cpumask and pc_other_cpus are target to be removed soon.
With the moving from cpumask_t to cpuset_t they are now inefficient
and not really useful. Anyway, for the time being, please note that
access to pcpu datas is protected by sched_pin() in order to avoid
migrating the CPU while reading more than one (possible) word
- Please note that size of cpuset_t objects may differ between kernel
and userland. While this is not directly related to the patch itself,
it is good to understand that concept and possibly use the patch
as a reference on how to deal with cpuset_t objects in userland, when
accessing kernland members.
- KTR_CPUMASK is changed and now is represented through a string, to be
set as the example reported in NOTES.
Please additively note that no MAXCPU is bumped in this patch, but
private testing has been done until to MAXCPU=128 on a real 8x8x2(htt)
machine (amd64).
Please note that the FreeBSD version is not yet bumped because of
the upcoming pcpu changes. However, note that this patch is not
targeted for MFC.
People to thank for the time spent on this patch:
- sbruno, pluknet and Nicholas Esborn (nick AT desert DOT net) tested
several revision of the patches and really helped in improving
stability of this work.
- marius fixed several bugs in the sparc64 implementation and reviewed
patches related to ktr.
- jeff and jhb discussed the basic approach followed.
- kib and marcel made targeted review on some specific part of the
patch.
- marius, art, nwhitehorn and andreast reviewed MD specific part of
the patch.
- marius, andreast, gonzo, nwhitehorn and jceel tested MD specific
implementations of the patch.
- Other people have made contributions on other patches that have been
already committed and have been listed separately.
Companies that should be mentioned for having participated at several
degrees:
- Yahoo! for having offered the machines used for testing on big
count of CPUs.
- The FreeBSD Foundation for having sponsored my devsummit attendance,
which has been instrumental.
- Sandvine for having offered offices and infrastructure during
development.
(I really hope I didn't forget anyone, if it happened I apologize in
advance).
|
| 222043 |
17-May-2011 |
jkim |
Update CPUID bits to reflect AMD Bulldozer and Intel Sandy Bridge features.
Note AMD dropped SSE5 extensions in order to avoid ISA overlap with Intel
AVX instructions. The SSE5 bit was recycled as XOP extended instruction
bit, CVT16 was deprecated in favor of F16C (half-precision float conversion
instructions for AVX), and the remaining FMA4 (4-operand FMA instructions)
gained a separate CPUID bit. Replace non-existent references with today's
CPUID specifications.
|
| 222041 |
17-May-2011 |
attilio |
Remove an unused typedef.
Tested by: sbruno, pluknet
|
| 221855 |
13-May-2011 |
mdf |
Move the ZERO_REGION_SIZE to a machine-dependent file, as on many
architectures (i386, for example) the virtual memory space may be
constrained enough that 2MB is a large chunk. Use 64K for arches
other than amd64 and ia64, with special handling for sparc64 due to
differing hardware.
Also commit the comment changes to kmem_init_zero_region() that I
missed due to not saving the file. (Darn the unfamiliar development
environment).
Arch maintainers, please feel free to adjust ZERO_REGION_SIZE as you
see fit.
Requested by: alc
MFC after: 1 week
MFC with: r221853
|
| 221703 |
09-May-2011 |
jkim |
Implement boot-time TSC synchronization test for SMP. This test is executed
when the user has indicated that the system has synchronized TSCs or it has
P-state invariant TSCs. For the former case, we may clear the tunable if it
fails the test to prevent accidental foot-shooting. For the latter case, we
may set it if it passes the test to notify the user that it may be usable.
|
| 221527 |
06-May-2011 |
avg |
prepare code that does topology detection for amd cpus for bulldozer
This also introduces a new detection path for family 10h and newer
pre-bulldozer cpus, pre-10h hardware should not be affected.
Tested by: Gary Jennejohn <gljennjohn@googlemail.com>
(with pre-10h hardware)
MFC after: 2 weeks
|
| 221188 |
28-Apr-2011 |
jkim |
Define "Hypervisor Present" bit. This bit is used by several hypervisors to
identify CPUs running under emulation. Currently QEMU-KVM, Xen-HVM, VMware,
and MS Hyper-V are known to set this bit.
MFC after: 3 days
|
| 220803 |
18-Apr-2011 |
kib |
Make pmap_invalidate_cache_range() available for consumption on amd64.
Add pmap_invalidate_cache_pages() method on x86. It flushes the CPU
cache for the set of pages, which are not neccessary mapped. Since its
supposed use is to prepare the move of the pages ownership to a device
that does not snoop all CPU accesses to the main memory (read GPU in
GMCH), do not rely on CPU self-snoop feature.
amd64 implementation takes advantage of the direct map. On i386,
extract the helper pmap_flush_page() from pmap_page_set_memattr(), and
use it to make a temporary mapping of the flushed page.
Reviewed by: alc
Sponsored by: The FreeBSD Foundation
MFC after: 3 weeks
|
| 220631 |
14-Apr-2011 |
jkim |
Add a function rdtsc32() to read lower 32 bits from TSC and discard upper
32 bits. Some times compiler inserts unnecessary instructions to preserve
unused upper 32 bits even when it is casted to a 32-bit value. It reduces
such compiler mistakes where every cycle counts.
|
| 220629 |
14-Apr-2011 |
jkim |
Consistently use __volatile as the rest of this file.
|
| 220627 |
14-Apr-2011 |
jkim |
Consistently use C99 standard integers as the rest of this file.
|
| 220580 |
12-Apr-2011 |
jkim |
Add forgotten declarations for tsc_perf_stat from the previous commit.
|
| 220578 |
12-Apr-2011 |
jkim |
Add definitions for CPUID instruction 6, ECX information.
|
| 220404 |
07-Apr-2011 |
jkim |
Implement atomic_load_acq_64(9) and atomic_store_rel_64(9) for i386. These
functions are implemented with CMPXCHG8B instruction where it is available,
i. e., all Pentium-class and later processors. Note this instruction is
also used for atomic_store_rel_64() because a simple XCHG-like instruction
for 64-bit memory access does not exist, unfortunately. If the processor
lacks the instruction, i. e., 80486-class CPUs, two 32-bit load/store are
performed with interrupt temporarily disabled, assuming it does not support
SMP. Although this assumption may be little naive, it is true in reality.
This implementation is inspired by Linux.
|
| 220347 |
04-Apr-2011 |
jkim |
Use cpu_ticks() for get_cyclecount(9) rather than checking existence of TSC
at run-time on i386. cpu_ticks() is set to use RDTSC early enough on i386
where it is available. Otherwise, cpu_ticks() is driven by the current
timecounter hardware as binuptime(9) does. This also avoids unnecessary
namespace pollution from <machine/cputypes.h>.
|
| 219920 |
23-Mar-2011 |
alc |
Modestly increase the maximum allowed size of the kmem map on i386.
Also, express this new maximum as a fraction of the kernel's address
space size rather than a constant so that increasing KVA_PAGES will
automatically increase this maximum. As a side-effect of this change,
kern.maxvnodes will automatically increase by a proportional amount.
While I'm here ensure that this change doesn't result in an unintended
increase in maxpipekva on i386. Calculate maxpipekva based upon the
size of the kernel address space and the amount of physical memory
instead of the size of the kmem map. The memory backing pipes is not
allocated from the kmem map. It is allocated from its own submap of
the kernel map. In short, it has no real connection to the kmem map.
(In fact, the commit messages for the maxpipekva auto-sizing talk
about using the kernel map size, cf. r117325 and r117391, even though
the implementation actually used the kmem map size.) Although the
calculation is now done differently, the resulting value for
maxpipekva should remain almost the same on i386. However, on amd64,
the value will be reduced by 2/3. This is intentional. The recent
change to VM_KMEM_SIZE_SCALE on amd64 for the benefit of ZFS also had
the unnecessary side-effect of increasing maxpipekva. This change is
effectively restoring maxpipekva on amd64 to its prior value.
Eliminate init_param3() since it is no longer used.
|
| 219819 |
21-Mar-2011 |
jeff |
- Merge changes to the base system to support OFED. These include
a wider arg2 for sysctl, updates to vlan code, IFT_INFINIBAND,
and other miscellaneous small features.
|
| 219698 |
16-Mar-2011 |
jkim |
Rework r219679. Always check CPU class at run-time to make it predictable.
Unfortunately, it pulls in <machine/cputypes.h> but it is small enough and
namespace pollution is minimal, I hope.
Pointed out by: bde
Pointy hat: jkim
|
| 219679 |
15-Mar-2011 |
jkim |
Partially revert r219672. After r198295, kernel need to seed randomness as
soon as possible for stack protector. However, dummy timecounter does not
have enough entropy and we don't need to sacrifice Pentium class and later.
Pointed out by: Maxim Dounin (mdounin at mdounin dot ru)
|
| 219675 |
15-Mar-2011 |
jkim |
Remove tsc_present from this file, really.
|
| 219672 |
15-Mar-2011 |
jkim |
Unconditionally use binuptime(9) for get_cyclecount(9) on i386. Since this
function is almost exclusively used for random harvesting, there is no need
for micro-optimization. Adjust the manual page accordingly.
|
| 219653 |
14-Mar-2011 |
jkim |
Make get_cyclecount(9) little bit more useful where binuptime(9) is used.
|
| 219461 |
10-Mar-2011 |
jkim |
Deprecate rarely used tsc_is_broken. Instead, we zero out tsc_freq because
it is almost always used with tsc_freq any way.
|
| 218950 |
22-Feb-2011 |
jhb |
Fix whitespace nit.
|
| 218773 |
17-Feb-2011 |
alc |
Remove pmap fields that are either unused or not fully implemented.
Discussed with: kib
|
| 218744 |
16-Feb-2011 |
dchagin |
To avoid excessive code duplication create wrapper for fill regs
from stack frame. Change the trap() code to use newly created function
instead of explicit regs assignment.
|
| 217515 |
17-Jan-2011 |
jkim |
Add reader/writer lock around mem_range_attr_get() and mem_range_attr_set().
Compile sys/dev/mem/memutil.c for all supported platforms and remove now
unnecessary dev_mem_md_init(). Consistently define mem_range_softc from
mem.c for all platforms. Add missing #include guards for machine/memdev.h
and sys/memrange.h. Clean up some nearby style(9) nits.
MFC after: 1 month
|
| 217192 |
09-Jan-2011 |
kib |
Move repeated MAXSLP definition from machine/vmparam.h to sys/vmmeter.h.
Update the outdated comments describing MAXSLP and the process
selection algorithm for swap out.
Comments wording and reviewed by: alc
|
| 217157 |
08-Jan-2011 |
tijl |
Copy powerpc/include/_inttypes.h to x86 and replace i386/amd64/pc98
headers with stubs.
Approved by: kib (mentor)
|
| 217147 |
08-Jan-2011 |
tijl |
On mixed 32/64 bit architectures (mips, powerpc) use __LP64__ rather than
architecture macros (__mips_n64, __powerpc64__) when 64 bit types (and
corresponding macros) are different from 32 bit. [1]
Correct the type of INT64_MIN, INT64_MAX and UINT64_MAX.
Define (U)INTMAX_C as an alias for (U)INT64_C matching the type definition
for (u)intmax_t. Do this on all architectures for consistency.
Suggested by: bde [1]
Approved by: kib (mentor)
|
| 217146 |
08-Jan-2011 |
tijl |
On 32 bit architectures define (u)int64_t as (unsigned) long long instead
of (unsigned) int __attribute__((__mode__(__DI__))). This aligns better
with macros such as (U)INT64_C, (U)INT64_MAX, etc. which assume (u)int64_t
has type (unsigned) long long.
The mode attribute was used because long long wasn't standardised until
C99. Nowadays compilers should support long long and use of the mode
attribute is discouraged according to GCC Internals documentation.
The type definition has to be marked with __extension__ to support
compilation with "-std=c89 -pedantic".
Discussed with: bde
Approved by: kib (mentor)
|
| 217145 |
08-Jan-2011 |
tijl |
Fix types of some values in machine/_limits.h.
On some architectures UCHAR_MAX and USHRT_MAX had type unsigned int.
However, lacking integer suffixes for types smaller than int, their type
should correspond to that of an object of type unsigned char (or short)
when used in an expression with objects of type int. In that case unsigned
char (short) are promoted to int (i.e. signed) so the type of UCHAR_MAX and
USHRT_MAX should also be int.
Where MIN/MAX constants implicitly have the correct type the suffix has
been removed.
While here, correct some comments.
Reviewed by: bde
Approved by: kib (mentor)
|
| 217128 |
07-Jan-2011 |
tijl |
Remove unused support for 64 bit long on 32 bit architectures.
It was used mainly to discover and fix some 64-bit portability problems
before 64-bit arches were widely available.
Discussed with: bde
Approved by: kib (mentor)
|
| 217097 |
07-Jan-2011 |
kib |
Add AT_STACKPROT elf aux vector. Will be used to inform rtld about the
initial stack protection set by the kernel image activator.
|
| 216956 |
04-Jan-2011 |
rwatson |
Make "options XENHVM" compile for i386, not just amd64 -- a largely
mechanical change. This opens the door for using PV device drivers
under Xen HVM on i386, as well as more general harmonisation of i386
and amd64 Xen support in FreeBSD.
Reviewed by: cperciva
MFC after: 3 weeks
|
| 216847 |
31-Dec-2010 |
cperciva |
Make i386_set_ldt work on i386/XEN, step 5/5.
When cleaning up a thread, reset its LDT to the default LDT.
Note: Casting the LDT pointer to an int and storing it in pc_currentldt is
wildly bogus, but is harmless since pc_currentldt is a write-only variable.
MFC after: 3 days
|
| 216844 |
31-Dec-2010 |
cperciva |
Make i386_set_ldt work on i386/XEN, step 2/5.
Don't map physical to machine page numbers in pte_load_store, since it uses
PT_SET_VA (which takes a physical page number and converts it to a machine
page number).
MFC after: 3 days
|
| 216592 |
20-Dec-2010 |
tijl |
Merge amd64 and i386 bus.h and move the resulting header to x86. Replace
the original amd64 and i386 headers with stubs.
Rename (AMD64|I386)_BUS_SPACE_* to X86_BUS_SPACE_* everywhere.
Reviewed by: imp (previous version), jhb
Approved by: kib (mentor)
|
| 216524 |
18-Dec-2010 |
kib |
Inform a compiler which asm statements in the x86 implementation of
atomics change eflags.
Reviewed by: jhb
MFC after: 2 weeks
|
| 216279 |
07-Dec-2010 |
jkim |
Use int for 'tsc_present' instead of u_int. It is just a boolean.
|
| 216143 |
03-Dec-2010 |
brucec |
Revert r216134. This checkin broke platforms where bus_space are macros:
they need to be a single statement, and do { } while (0) doesn't work in this
situation so revert until a solution can be devised.
|
| 216134 |
02-Dec-2010 |
brucec |
Disallow passing in a count of zero bytes to the bus_space(9) functions.
Passing a count of zero on i386 and amd64 for [I386|AMD64]_BUS_SPACE_MEM
causes a crash/hang since the 'loop' instruction decrements the counter
before checking if it's zero.
PR: kern/80980
Discussed with: jhb
|
| 215865 |
26-Nov-2010 |
kib |
Remove npxgetregs(), npxsetregs(), fpugetregs() and fpusetregs()
functions, they are unused. Remove 'user' from npxgetuserregs()
etc. names.
For {npx,fpu}{get,set}regs(), always use pcb->pcb_user_save for FPU
context storage. This eliminates the need for ugly copying with
overwrite of the newly added and reserved fields in ucontext on i386
to satisfy alignment requirements for fpusave() and fpurstor().
pc98 version was copied from i386.
Suggested and reviewed by: bde
Tested by: pho (i386 and amd64)
MFC after: 1 week
|
| 215856 |
26-Nov-2010 |
tijl |
Merge amd64/i386 _align.h by aligning on the size of register_t (copied
from powerpc).
Reviewed by: imp, jhb
Approved by: kib (mentor)
|
| 215818 |
25-Nov-2010 |
cperciva |
Rename HYPERVISOR_multicall (which performs the multicall hypercall) to
_HYPERVISOR_multicall, and create a new HYPERVISOR_multicall function which
invokes _HYPERVISOR_multicall and checks that the individual hypercalls all
succeeded.
|
| 215748 |
23-Nov-2010 |
avg |
specialreg.h: add definitions for some useful bits found in CPUID.6 EAX and ECX
CPUID.6 is defined as Thermal and Power Management Leaf by both Intel
and AMD.
Reviewed by: jhb
MFC after: 7 days
|
| 215587 |
20-Nov-2010 |
cperciva |
Add VTOM(va) macro as xpmap_ptom(VTOP(va)) to convert to machine addresses.
Clean up the code by converting xpmap_ptom(VTOP(...)) to VTOM(...) and
converting xpmap_ptom(VM_PAGE_TO_PHYS(...)) to VM_PAGE_TO_MACH(...). In
a few places we take advantage of the fact that xpmap_ptom can commute with
setting PG_* flags.
This commit should have no net effect save to improve the readability of
this code.
|
| 215524 |
19-Nov-2010 |
avg |
specialreg.h: add definitions for MPERF/APERF pair of MSRs
These MSRs can be used to determine actual (average) performance as
compared to a maximum defined performance.
Availability of these MSRs is indicated by bit0 in CPUID.6.ECX on both
Intel and AMD processors.
MFC after: 5 days
|
| 215523 |
19-Nov-2010 |
avg |
specialreg.h: add AMD-specific "Hardware Configuration Register" MSR
It seems that this MSR has been available in a range of AMD processors
families for quite a while now.
Note1: not all AMD MSRs that are found in amd64 specialreg.h are also in
the i386 version.
Note2: perhaps some additional name component is needed to distinguish
AMD-specific MSRs.
MFC after: 5 days
|
| 215522 |
19-Nov-2010 |
avg |
specialreg.h: add definition for AMD Core Performance Boost bit
This bit indicates availability of the feature.
MFC after: 4 days
|
| 215140 |
11-Nov-2010 |
jkim |
Move identical copies of apm_bios.h to sys/x86/include, replace them with
stubs, and adjust PC98 stub accordingly.
Reviewed by: imp, nyan
|
| 215054 |
09-Nov-2010 |
jhb |
- Remove <machine/mutex.h>. Most of the headers were empty, and the
contents of the ones that were not empty were stale and unused.
- Now that <machine/mutex.h> no longer exists, there is no need to allow it
to override various helper macros in <sys/mutex.h>.
- Rename various helper macros for low-level operations on mutexes to live
in the _mtx_* or __mtx_* namespaces. While here, change the names to more
closely match the real API functions they are backing.
- Drop support for including <sys/mutex.h> in assembly source files.
Suggested by: bde (1, 2)
|
| 215051 |
09-Nov-2010 |
attilio |
Move the mptable.h under x86/include/.
Sponsored by: Sandvine Incorporated
MFC after: 14 days
|
| 214631 |
01-Nov-2010 |
jhb |
Move <machine/apicreg.h> to <x86/apicreg.h>.
|
| 214630 |
01-Nov-2010 |
jhb |
Move the <machine/mca.h> header to <x86/mca.h>.
|
| 214346 |
25-Oct-2010 |
jhb |
Use intr_disable() and intr_restore() instead of frobbing the flags register
directly to disable interrupts.
Reviewed by: bde (earlier version)
MFC after: 2 weeks
|
| 213455 |
05-Oct-2010 |
alc |
Initialize KPTmap in locore so that vm86.c can call vtophys() (or really
pmap_kextract()) before pmap_bootstrap() is called.
Document the set of pmap functions that may be called before
pmap_bootstrap() is called.
Tested by: bde@
Reviewed by: kib@
Discussed with: jhb@
MFC after: 6 weeks
|
| 213452 |
05-Oct-2010 |
kib |
Display PCID capability of CPU and add CPUID define for it.
MFC after: 1 week
|
| 212541 |
13-Sep-2010 |
mav |
Refactor timer management code with priority to one-shot operation mode.
The main goal of this is to generate timer interrupts only when there is
some work to do. When CPU is busy interrupts are generating at full rate
of hz + stathz to fullfill scheduler and timekeeping requirements. But
when CPU is idle, only minimum set of interrupts (down to 8 interrupts per
second per CPU now), needed to handle scheduled callouts is executed.
This allows significantly increase idle CPU sleep time, increasing effect
of static power-saving technologies. Also it should reduce host CPU load
on virtualized systems, when guest system is idle.
There is set of tunables, also available as writable sysctls, allowing to
control wanted event timer subsystem behavior:
kern.eventtimer.timer - allows to choose event timer hardware to use.
On x86 there is up to 4 different kinds of timers. Depending on whether
chosen timer is per-CPU, behavior of other options slightly differs.
kern.eventtimer.periodic - allows to choose periodic and one-shot
operation mode. In periodic mode, current timer hardware taken as the only
source of time for time events. This mode is quite alike to previous kernel
behavior. One-shot mode instead uses currently selected time counter
hardware to schedule all needed events one by one and program timer to
generate interrupt exactly in specified time. Default value depends of
chosen timer capabilities, but one-shot mode is preferred, until other is
forced by user or hardware.
kern.eventtimer.singlemul - in periodic mode specifies how much times
higher timer frequency should be, to not strictly alias hardclock() and
statclock() events. Default values are 2 and 4, but could be reduced to 1
if extra interrupts are unwanted.
kern.eventtimer.idletick - makes each CPU to receive every timer interrupt
independently of whether they busy or not. By default this options is
disabled. If chosen timer is per-CPU and runs in periodic mode, this option
has no effect - all interrupts are generating.
As soon as this patch modifies cpu_idle() on some platforms, I have also
refactored one on x86. Now it makes use of MONITOR/MWAIT instrunctions
(if supported) under high sleep/wakeup rate, as fast alternative to other
methods. It allows SMP scheduler to wake up sleeping CPUs much faster
without using IPI, significantly increasing performance on some highly
task-switching loads.
Tested by: many (on i386, amd64, sparc64 and powerc)
H/W donated by: Gheorghe Ardelean
Sponsored by: iXsystems, Inc.
|
| 212177 |
03-Sep-2010 |
rdivacky |
Change the parameter passed to the inline assembly to u_short
as we are dealing with 16bit segment registers. Change mov
to movw.
Approved by: rpaulo (mentor)
Reviewed by: kib, rink
|
| 211924 |
28-Aug-2010 |
rpaulo |
Register an interrupt vector for DTrace return probes. There is some
code missing in lapic to make sure that we don't overwrite this entry,
but this will be done on a sequent commit.
Sponsored by: The FreeBSD Foundation
|
| 211825 |
25-Aug-2010 |
jkim |
Increase maximum number of page table entries per VM86 context from 8 to 24
pages, yet again. Now we can allocate a whole segment, which is required
for shadowing option ROM images, for example.
|
| 211752 |
24-Aug-2010 |
rpaulo |
Add two DTrace trap type values. Used by fasttrap.
Sponsored by: The FreeBSD Foundation
|
| 211412 |
17-Aug-2010 |
kib |
Supply some useful information to the started image using ELF aux vectors.
In particular, provide pagesize and pagesizes array, the canary value
for SSP use, number of host CPUs and osreldate.
Tested by: marius (sparc64)
MFC after: 1 month
|
| 210939 |
06-Aug-2010 |
jhb |
Add a new ipi_cpu() function to the MI IPI API that can be used to send an
IPI to a specific CPU by its cpuid. Replace calls to ipi_selected() that
constructed a mask for a single CPU with calls to ipi_cpu() instead. This
will matter more in the future when we transition from cpumask_t to
cpuset_t for CPU masks in which case building a CPU mask is more expensive.
Submitted by: peter, sbruno
Reviewed by: rookie
Obtained from: Yahoo! (x86)
MFC after: 1 month
|
| 210877 |
05-Aug-2010 |
jkim |
Implement a simple native VM86 backend for X86BIOS. Now i386 uses native
VM86 calls instead of the real mode emulator as a backend. VM86 has been
proven reliable for very long time and it is actually few times faster than
emulation. Increase maximum number of page table entries per VM86 context
from 3 to 8 pages. It was (ridiculously) low and insufficient for new VM86
backend, which shares one context globally. Slighly rearrange and clean up
the emulator backend to accommodate new code. The only visible change here
is stack size, which is decreased from 64K to 4K bytes to sync. with VM86.
Actually, it seems there is no need for big stack in real mode.
MFC after: 1 month
|
| 210624 |
29-Jul-2010 |
delphij |
Improve cputemp(4) driver wrt newer Intel processors, especially
Xeon 5500/5600 series:
- Utilize IA32_TEMPERATURE_TARGET, a.k.a. Tj(target) in place
of Tj(max) when a sane value is available, as documented
in Intel whitepaper "CPU Monitoring With DTS/PECI"; (By sane
value we mean 70C - 100C for now);
- Print the probe results when booting verbose;
- Replace cpu_mask with cpu_stepping;
- Use CPUID_* macros instead of rolling our own.
Approved by: rpaulo
MFC after: 1 month
|
| 210623 |
29-Jul-2010 |
jhb |
Mark the __curthread() functions as __pure2 and remove the volatile keyword
from the inline assembly. This allows the compiler to cache invocations of
curthread since it's value does not change within a thread context.
Submitted by: zec (i386)
MFC after: 1 week
|
| 210577 |
28-Jul-2010 |
jhb |
The corrected error count field is dependent on CMCI, not TES.
MFC after: 1 week
|
| 210550 |
27-Jul-2010 |
jhb |
Very rough first cut at NUMA support for the physical page allocator. For
now it uses a very dumb first-touch allocation policy. This will change in
the future.
- Each architecture indicates the maximum number of supported memory domains
via a new VM_NDOMAIN parameter in <machine/vmparam.h>.
- Each cpu now has a PCPU_GET(domain) member to indicate the memory domain
a CPU belongs to. Domain values are dense and numbered from 0.
- When a platform supports multiple domains, the default freelist
(VM_FREELIST_DEFAULT) is split up into N freelists, one for each domain.
The MD code is required to populate an array of mem_affinity structures.
Each entry in the array defines a range of memory (start and end) and a
domain for the range. Multiple entries may be present for a single
domain. The list is terminated by an entry where all fields are zero.
This array of structures is used to split up phys_avail[] regions that
fall in VM_FREELIST_DEFAULT into per-domain freelists.
- Each memory domain has a separate lookup-array of freelists that is
used when fulfulling a physical memory allocation. Right now the
per-domain freelists are listed in a round-robin order for each domain.
In the future a table such as the ACPI SLIT table may be used to order
the per-domain lookup lists based on the penalty for each memory domain
relative to a specific domain. The lookup lists may be examined via a
new vm.phys.lookup_lists sysctl.
- The first-touch policy is implemented by using PCPU_GET(domain) to
pick a lookup list when allocating memory.
Reviewed by: alc
|
| 210357 |
21-Jul-2010 |
rpaulo |
MFamd64:
Add USD_GETBASE(), USD_SETBASE(), USD_GETLIMIT() and USD_SETLIMIT().
|
| 210131 |
15-Jul-2010 |
mav |
Move functions declaration to MI code, following implementation.
|
| 209995 |
13-Jul-2010 |
imp |
Remove obsolete undef of COPY_SIGCODE. It appears to have not been
used in FreeBSD in quite some time (maybe since before 4.4-lite :)
Submitted by: bde
|
| 209866 |
09-Jul-2010 |
kib |
Fix spacing.
Noted by: pgollucci
MFC after: 3 weeks
|
| 209862 |
09-Jul-2010 |
kib |
For both i386 and amd64 pmap,
- change the type of pm_active to cpumask_t, which it is;
- in pmap_remove_pages(), compare with PCPU(curpmap), instead of
dereferencing the long chain of pointers [1].
For amd64 pmap, remove the unneeded checks for validity of curpmap
in pmap_activate(), since curpmap should be always valid after
r209789.
Submitted by: alc [1]
Reviewed by: alc
MFC after: 3 weeks
|
| 209461 |
23-Jun-2010 |
kib |
Remove the support for int13 FPU exception reporting on i386. It is
believed that all 486-class CPUs FreeBSD is capable to run on, either
have no FPU and cannot use external coprocessor, or have FPU on the
package and can use #MF.
Reviewed by: bde
Tested by: pho (previous version)
|
| 209460 |
23-Jun-2010 |
kib |
Remove unused i586 optimized bcopy/bzero/etc implementations that utilize
FPU registers for copying. Remove the switch table and jumps from
bcopy/bzero/... to the actual implementation.
As a side-effect, i486-optimized bzero is removed.
Reviewed by: bde
Tested by: pho (previous version)
|
| 209371 |
20-Jun-2010 |
mav |
Implement new event timers infrastructure. It provides unified APIs for
writing event timer drivers, for choosing best possible drivers by machine
independent code and for operating them to supply kernel with hardclock(),
statclock() and profclock() events in unified fashion on various hardware.
Infrastructure provides support for both per-CPU (independent for every CPU
core) and global timers in periodic and one-shot modes. MI management code
at this moment uses only periodic mode, but one-shot mode use planned for
later, as part of tickless kernel project.
For this moment infrastructure used on i386 and amd64 architectures. Other
archs are welcome to follow, while their current operation should not be
affected.
This patch updates existing drivers (i8254, RTC and LAPIC) for the new
order, and adds event timers support into the HPET driver. These drivers
have different capabilities:
LAPIC - per-CPU timer, supports periodic and one-shot operation, may
freeze in C3 state, calibrated on first use, so may be not exactly precise.
HPET - depending on hardware can work as per-CPU or global, supports
periodic and one-shot operation, usually provides several event timers.
i8254 - global, limited to periodic mode, because same hardware used also
as time counter.
RTC - global, supports only periodic mode, set of frequencies in Hz
limited by powers of 2.
Depending on hardware capabilities, drivers preferred in following orders,
either LAPIC, HPETs, i8254, RTC or HPETs, LAPIC, i8254, RTC.
User may explicitly specify wanted timers via loader tunables or sysctls:
kern.eventtimer.timer1 and kern.eventtimer.timer2.
If requested driver is unavailable or unoperational, system will try to
replace it. If no more timers available or "NONE" specified for second,
system will operate using only one timer, multiplying it's frequency by few
times and uing respective dividers to honor hz, stathz and profhz values,
set during initial setup.
|
| 209212 |
15-Jun-2010 |
jhb |
Restore the machine check register banks on resume. For banks being
monitored via CMCI, reset the interrupt threshold to 1 on resume.
Reviewed by: jkim
MFC after: 2 weeks
|
| 208833 |
05-Jun-2010 |
kib |
Introduce the x86 kernel interfaces to allow kernel code to use
FPU/SSE hardware. Caller should provide a save area that is chained
into the stack of the areas; pcb save_area for usermode FPU state is
on top. The pcb now contains a pointer to the current FPU saved area,
used during FPUDNA handling and context switches. There is also a
facility to allow the kernel thread to use pcb save_area.
Change the dreaded warnings "npxdna in kernel mode!" into the panics
when FPU usage is not registered.
KPI discussed with: fabient
Tested by: pho, fabient
Hardware provided by: Sentex Communications
MFC after: 1 month
|
| 208742 |
02-Jun-2010 |
jhb |
MFamd64: Add a new macro PCPU_XEN_FIELDS to hold XEN-specific per-CPU
fields that is always included in PCPU_MD_FIELDS. The macro is empty for
non-XEN kernels. This avoids duplicating non-XEN per-CPU fields in two
places. While here, remove several unused fields from the XEN-specific
structure.
Reviewed by: kmacy, gibbs
MFC after: 1 month
|
| 208507 |
24-May-2010 |
jhb |
Add support for corrected machine check interrupts. CMCI is a new local
APIC interrupt that fires when a threshold of corrected machine check
events is reached. CMCI also includes a count of events when reporting
corrected errors in the bank's status register. Note that individual
banks may or may not support CMCI. If they do, each bank includes its own
threshold register that determines when the interrupt fires. Currently
the code uses a very simple strategy where it doubles the threshold on
each interrupt until it succeeds in throttling the interrupt to occur
only once a minute (this interval can be tuned via sysctl). The threshold
is also adjusted on each hourly poll which will lower the threshold once
events stop occurring.
Tested by: Sailaja Bangaru sbappana at yahoo com
MFC after: 1 month
|
| 208494 |
24-May-2010 |
mav |
- Implement MI helper functions, dividing one or two timer interrupts with
arbitrary frequencies into hardclock(), statclock() and profclock() calls.
Same code with minor variations duplicated several times over the tree for
different timer drivers and architectures.
- Switch all x86 archs to new functions, simplifying the code and removing
extra logic from timer drivers. Other archs are also welcome.
|
| 208453 |
23-May-2010 |
kib |
Reorganize syscall entry and leave handling.
Extend struct sysvec with three new elements:
sv_fetch_syscall_args - the method to fetch syscall arguments from
usermode into struct syscall_args. The structure is machine-depended
(this might be reconsidered after all architectures are converted).
sv_set_syscall_retval - the method to set a return value for usermode
from the syscall. It is a generalization of
cpu_set_syscall_retval(9) to allow ABIs to override the way to set a
return value.
sv_syscallnames - the table of syscall names.
Use sv_set_syscall_retval in kern_sigsuspend() instead of hardcoding
the call to cpu_set_syscall_retval().
The new functions syscallenter(9) and syscallret(9) are provided that
use sv_*syscall* pointers and contain the common repeated code from
the syscall() implementations for the architecture-specific syscall
trap handlers.
Syscallenter() fetches arguments, calls syscall implementation from
ABI sysent table, and set up return frame. The end of syscall
bookkeeping is done by syscallret().
Take advantage of single place for MI syscall handling code and
implement ptrace_lwpinfo pl_flags PL_FLAG_SCE, PL_FLAG_SCX and
PL_FLAG_EXEC. The SCE and SCX flags notify the debugger that the
thread is stopped at syscall entry or return point respectively. The
EXEC flag augments SCX and notifies debugger that the process address
space was changed by one of exec(2)-family syscalls.
The i386, amd64, sparc64, sun4v, powerpc and ia64 syscall()s are
changed to use syscallenter()/syscallret(). MIPS and arm are not
converted and use the mostly unchanged syscall() implementation.
Reviewed by: jhb, marcel, marius, nwhitehorn, stas
Tested by: marcel (ia64), marius (sparc64), nwhitehorn (powerpc),
stas (mips)
MFC after: 1 month
|
| 208332 |
20-May-2010 |
phk |
Rename an argument from "exp" to "expect" since the former makes FlexeLint
uneasy, in case anybody think it might be exp(3) in libm.
This also makes it consistent with other archs.
|
| 208311 |
19-May-2010 |
jhb |
Add constants for the optional EOI suppression support in local APICs and
EOI registers in I/O APICs.
|
| 207676 |
05-May-2010 |
kib |
Add definitions for Intel AESNI CPUID bits and print the capabilities
on boot.
Hardware provided by: Sentex Communications
MFC after: 1 week
|
| 207673 |
05-May-2010 |
joel |
Switch to our preferred 2-clause BSD license.
Approved by: kmacy
|
| 207410 |
30-Apr-2010 |
kmacy |
On Alan's advice, rather than do a wholesale conversion on a single
architecture from page queue lock to a hashed array of page locks
(based on a patch by Jeff Roberson), I've implemented page lock
support in the MI code and have only moved vm_page's hold_count
out from under page queue mutex to page lock. This changes
pmap_extract_and_hold on all pmaps.
Supported by: Bitgravity Inc.
Discussed with: alc, jeffr, and kib
|
| 207329 |
28-Apr-2010 |
attilio |
- Extract the IODEV_PIO interface from ia64 and make it MI.
In the end, it does help fixing /dev/io usage from multithreaded
processes.
- On i386 and amd64 the old behaviour is kept but multithreaded
processes must use the new interface in order to work well.
- Support for the other architectures is greatly improved, where
necessary, by the necessity to define very small things now.
Manpage update will happen shortly.
Sponsored by: Sandvine Incorporated
PR: threads/116181
Reviewed by: emaste, marcel
MFC after: 3 weeks
|
| 207269 |
27-Apr-2010 |
kib |
Style: use #define<TAB> instead of #define<SPACE>.
Noted by: bde, pluknet gmail com
MFC after: 11 days
|
| 207152 |
24-Apr-2010 |
kib |
Move the constants specifying the size of struct kinfo_proc into
machine-specific header files. Add KINFO_PROC32_SIZE for struct
kinfo_proc32 for architectures providing COMPAT_FREEBSD32. Add
CTASSERT for the size of struct kinfo_proc32.
Submitted by: pluknet
Reviewed by: imp, jhb, nwhitehorn
MFC after: 2 weeks
|
| 206381 |
07-Apr-2010 |
rpaulo |
Add EFI boot info fields.
|
| 206089 |
02-Apr-2010 |
fabient |
- Support for uncore counting events: one fixed PMC with the uncore
domain clock, 8 programmable PMC.
- Westmere based CPU (Xeon 5600, Corei7 980X) support.
- New man pages with events list for core and uncore.
- Updated Corei7 events with Intel 253669-033US December 2009 doc.
There is some removed events in the documentation, they have been
kept in the code but documented in the man page as obsolete.
- Offcore response events can be setup with rsp token.
Sponsored by: NETASQ
|
| 205851 |
29-Mar-2010 |
jhb |
Add a handler for the local APIC error interrupt. For now it just prints
out the current value of the local APIC error register when the interrupt
fires.
MFC after: 1 week
|
| 205573 |
24-Mar-2010 |
alc |
Adapt r204907 and r205402, the amd64 implementation of the workaround for
AMD Family 10h Erratum 383, to i386.
Enable machine check exceptions by default, just like r204913 for amd64.
Enable superpage promotion only if the processor actually supports large
pages, i.e., PG_PS.
MFC after: 2 weeks
|
| 205448 |
22-Mar-2010 |
jhb |
Remove unneeded type specifiers from 64-bit constants. The compiler
infers their natural type from the constants' values.
Submitted by: bde
MFC after: 3 days
|
| 205214 |
16-Mar-2010 |
jhb |
- Extend the machine check record structure to include several fields useful
for parsing model-specific and other fields in machine check events
including the global machine check capabilities and status registers,
CPU identification, and the FreeBSD CPU ID.
- Report these added fields in the console log of a machine check so that
a record structure can be reconstituted from the console messages.
- Parse new architectural errors including memory controller errors.
MFC after: 1 week
|
| 205210 |
16-Mar-2010 |
jhb |
Use unsigned long long constants for fields in 64-bit machine check
registers instead of unsigned long constants.
MFC after: 3 days
|
| 204646 |
03-Mar-2010 |
joel |
The NetBSD Foundation has granted permission to remove clause 3 and 4 from
the software.
Obtained from: NetBSD
|
| 204641 |
03-Mar-2010 |
attilio |
Improving the clocks auto-tunning by firstly checking if the atrtc may be
correctly initialized and just then assign to softclock/profclock.
Right now, some atrtc seems reporting strange diagnostic error* making the
current pattern bogus.
In order to do that cleanly, lapic_setup_clock(), on both ia32 and amd64,
now accepts as arguments the desired sources to handle, and returns the
actual ones (LAPIC_CLOCK_NONE is forbidden because otherwise there is no
meaning in calling such function).
This allows to bring out into commont x86 code the handling part for
machdep.lapic_allclocks tunable, which is retained.
Sponsored by: Sandvine Incorporated
Tested by: yongari, Richard Todd
<rmtodd at ichotolot dot servalan dot com>
MFC: 3 weeks
X-MFC: r202387, 204309
|
| 202894 |
23-Jan-2010 |
alc |
Handle a race between pmap_kextract() and pmap_promote_pde(). This race is
known to cause a kernel crash in ZFS on i386 when superpage promotion is
enabled.
Tested by: netchild
MFC after: 1 week
|
| 202387 |
15-Jan-2010 |
attilio |
Handling all the three clocks (hardclock, softclock, profclock) with the
LAPIC may lead to aliasing for softclock and profclock because frequencies
are sized in order to fit mainly hardclock.
atrtc used to take care of the softclock and profclock and it does still
do, if the LAPIC can't handle the clocks properly.
Revert the change when the LAPIC started taking charge of all three of
them and let atrtc handle softclock and profclock if not explicitly
requested. Such request can be made setting != 0 the new tunable
machdep.lapic_allclocks or if the new device ATPIC is not present
within the i386 kernel config (atrtc is linked to atpic presence).
Diagnosed by: Sandvine Incorporated
Reviewed by: jhb, emaste
Sponsored by: Sandvine Incorporated
MFC: 3 weeks
|
| 202097 |
11-Jan-2010 |
marcel |
Use io(4) for I/O port access on ia64, rather than through sysarch(2).
I/O port access is implemented on Itanium by reading and writing to a
special region in memory. To hide details and avoid misaligned memory
accesses, a process did I/O port reads and writes by making a MD system
call. There's one fatal problem with this approach: unprivileged access
was not being prevented. /dev/io serves that purpose on amd64/i386, so
employ it on ia64 as well. Use an ioctl for doing the actual I/O and
remove the sysarch(2) interface.
Backward compatibility is not being considered. The sysarch(2) approach
was added to support X11, but support for FreeBSD/ia64 was never fully
implemented in X11. Thus, nothing gets broken that didn't need more work
to begin with.
MFC after: 1 week
|
| 201751 |
07-Jan-2010 |
alc |
Make pmap_set_pg() static.
|
| 201369 |
01-Jan-2010 |
obrien |
Quiet variable "shadows" warning:
sys/vmmeter.h: warning: shadowed declaration is here
machine/cpufunc.h: In function 'insw':
machine/cpufunc.h: warning: declaration of 'cnt' shadows a global declaration
..snip..
|
| 200033 |
02-Dec-2009 |
avg |
mca: improve status checking, recording and reporting
- directly print mca information in case we fail to allocate memory
for a record
- include bank number into mca record
- print raw mca status value for extended information
Reviewed by: jhb
MFC after: 10 days
|
| 199968 |
30-Nov-2009 |
avg |
x86 cpu features: add MOVBE reporting and flag
The check is glimpsed from Linux and OpenSolaris.
MOVBE instruction is found in Intel Atom processors.
|
| 198134 |
15-Oct-2009 |
jhb |
Add a facility for associating optional descriptions with active interrupt
handlers. This is primarily intended as a way to allow devices that use
multiple interrupts (e.g. MSI) to meaningfully distinguish the various
interrupt handlers.
- Add a new BUS_DESCRIBE_INTR() method to the bus interface to associate
a description with an active interrupt handler setup by BUS_SETUP_INTR.
It has a default method (bus_generic_describe_intr()) which simply passes
the request up to the parent device.
- Add a bus_describe_intr() wrapper around BUS_DESCRIBE_INTR() that supports
printf(9) style formatting using var args.
- Reserve MAXCOMLEN bytes in the intr_handler structure to hold the name of
an interrupt handler and copy the name passed to intr_event_add_handler()
into that buffer instead of just saving the pointer to the name.
- Add a new intr_event_describe_handler() which appends a description string
to an interrupt handler's name.
- Implement support for interrupt descriptions on amd64 and i386 by having
the nexus(4) driver supply a custom bus_describe_intr method that invokes
a new intr_describe() MD routine which in turn looks up the associated
interrupt event and invokes intr_event_describe_handler().
Requested by: many
Reviewed by: scottl
MFC after: 2 weeks
|
| 197933 |
10-Oct-2009 |
kib |
Define architectural load bases for PIE binaries. Addresses were selected
by looking at the bases used for non-relocatable executables by gnu ld(1),
and adjusting it slightly.
Discussed with: bz
Reviewed by: kan
Tested by: bz (i386, amd64), bsam (linux)
MFC after: some time
|
| 197910 |
09-Oct-2009 |
attilio |
atomic_cmpset_barr_* was added in order to cope with compilers willing to
specify their own version of atomic_cmpset_* which could have been
different than the membar version.
Right now, however, FreeBSD is bound mostly to GCC-like compilers and
it is desired to add new support and compat shim mostly when there is
a real necessity, in order to avoid too much compatibility bloats.
In this optic, bring back atomic_cmpset_{acq, rel}_* to be the same as
atomic_cmpset_* and unwind the atomic_cmpset_barr_* introduction.
Requested by: jhb
Reviewed by: jhb
Tested by: Giovanni Trematerra <giovanni dot trematerra at
gmail dot com>
|
| 197824 |
06-Oct-2009 |
attilio |
- All the functions in atomic.h needs to be in "physical" form (like
not defined through macros or similar) in order to be later compiled in
the kernel and offer this way the support for modules (and
compatibility among the UP case and SMP case).
Fix this for the newly introduced atomic_cmpset_barr_* cases by defining
and specifying a template. Note that the new DEFINE_CMPSET_GEN()
template save more typing on amd64 than the current code. [1]
- Fix the style for memory barriers on amd64.
[1] Reported by: Paul B. Mahol <onemda at gmail dot com>
|
| 197803 |
06-Oct-2009 |
attilio |
Per their definition, atomic instructions used in conjuction with
memory barriers should also ensure that the compiler doesn't reorder paths
where they are used. GCC, however, does that aggressively, even in
presence of volatile operands. The most reliable way GCC offers for avoid
instructions reordering is clobbering "memory" even if that is
theoretically an heavy-weight operation, flushing the content of all
the registers and forcing reload of them (We could rely, however, on
gcc DTRT by just understanding the purpose as this is a well-known
pattern for many modern operating-systems).
Not all our memory barriers, right now, clobber memory for GCC-like
compilers. The most notable cases are IA32 and amd64 where the memory
barrier are treacted the same as normal atomic instructions.
Fix this by offering the possibility to implement atomic instructions
with memory barriers separately from the normal version and implement
the GCC-like specific one using memory clobbering.
Thanks to Chris Lattner (@apple) for his discussion on llvm specifics.
Reported by: jhb
Reviewed by: jhb
Tested by: rdivacky, Giovanni Trematerra
<giovanni dot trematerra at gmail dot com>
|
| 197693 |
01-Oct-2009 |
kmacy |
make read_eflags and write_eflags accomplish the same effect on PVM as native,
simplifying interrupt handling
|
| 197647 |
30-Sep-2009 |
avg |
cpufunc.h: unify/correct style of c extension names
i386 and amd64 archs only.
inline => __inline. [1]
__asm__ => __asm. [2]
Reviewed by: kib, jhb [1]
Suggested by: kib [2]
MFC after: 1 week
|
| 197536 |
27-Sep-2009 |
jkim |
Copy apm(4) emulation from sys/i386/acpica/acpi_machdep.c and
install apm(8) and apm_bios.h on amd64.
|
| 197439 |
23-Sep-2009 |
jhb |
Extract the code to find and map the MADT ACPI table during early kernel
startup and genericize it so it can be reused to map other tables as well:
- Add a routine to walk a list of ACPI subtables such as those used in the
APIC and SRAT tables in the MI acpi(4) driver.
- Move the routines for mapping and unmapping an ACPI table as well as
mapping the RSDT or XSDT and searching for a table with a given signature
out into acpica_machdep.c for both amd64 and i386.
|
| 197316 |
18-Sep-2009 |
alc |
Add a new sysctl for reporting all of the supported page sizes.
Reviewed by: jhb
MFC after: 3 weeks
|
| 197108 |
11-Sep-2009 |
kmacy |
fix UP compilation
|
| 197070 |
10-Sep-2009 |
jkim |
Consolidate CPUID to CPU family/model macros for amd64 and i386 to reduce
unnecessary #ifdef's for shared code between them.
|
| 197025 |
09-Sep-2009 |
delphij |
- Teach vesa(4) and dpms(4) about x86emu. [1]
- Add vesa kernel options for amd64.
- Connect libvgl library and splash kernel modules to amd64 build.
- Connect manual page dpms(4) to amd64 build.
- Remove old vesa/dpms files.
Submitted by: paradox <ddkprog yahoo com> [1], swell k at gmail.com
(with some minor tweaks)
|
| 196994 |
08-Sep-2009 |
phk |
Get rid of the _NO_NAMESPACE_POLLUTION kludge by creating an
architecture specific include file containing the _ALIGN*
stuff which <sys/socket.h> needs.
|
| 196816 |
04-Sep-2009 |
julian |
whitespace commit
Submitted by: bde@
|
| 196811 |
04-Sep-2009 |
julian |
Bring i386 up to date with amd64 and others.
The macros for PCPU can be slightly simplified, which makes the
resulting tangle qa lot easier to understand when trying to read them.
MFC after: 4 weeks
|
| 196705 |
31-Aug-2009 |
jhb |
Improve pmap_change_attr() so that it is able to demote a large (2/4MB)
page into 4KB pages as needed. This should be fairly rare in practice
on i386. This includes merging the following changes from the amd64 pmap:
180430, 180485, 180845, 181043, 181077, and 196318.
- Add basic support for changing attributes on PDEs to pmap_change_attr()
similar to the support in the initial version of pmap_change_attr() on
amd64 including inlines for pmap_pde_attr() and pmap_pte_attr().
- Extend pmap_demote_pde() to include the ability to instantiate a new page
table page where none existed before.
- Enhance pmap_change_attr(). Use pmap_demote_pde() to demote a 2/4MB page
mapping to 4KB page mappings when the specified attribute change only
applies to a portion of the 2/4MB page. Previously, in such cases,
pmap_change_attr() gave up and returned an error.
- Correct a critical accounting error in pmap_demote_pde().
Reviewed by: alc
MFC after: 3 days
|
| 196224 |
14-Aug-2009 |
jhb |
Adjust the handling of the local APIC PMC interrupt vector:
- Provide lapic_disable_pmc(), lapic_enable_pmc(), and lapic_reenable_pmc()
routines in the local APIC code that the hwpmc(4) driver can use to
manage the local APIC PMC interrupt vector.
- Do not enable the local APIC PMC interrupt vector by default when
HWPMC_HOOKS is enabled. Instead, the hwpmc(4) driver explicitly
enables the interrupt when it is succesfully initialized and disables
the interrupt when it is unloaded. This avoids enabling the interrupt
on unsupported CPUs which may result in spurious NMIs.
Reported by: rnoland
Reviewed by: jkoshy
Approved by: re (kib)
MFC after: 2 weeks
|
| 196196 |
13-Aug-2009 |
attilio |
* Completely Remove the option STOP_NMI from the kernel. This option
has proven to have a good effect when entering KDB by using a NMI,
but it completely violates all the good rules about interrupts
disabled while holding a spinlock in other occasions. This can be the
cause of deadlocks on events where a normal IPI_STOP is expected.
* Adds an new IPI called IPI_STOP_HARD on all the supported architectures.
This IPI is responsible for sending a stop message among CPUs using a
privileged channel when disponible. In other cases it just does match a
normal IPI_STOP.
Right now the IPI_STOP_HARD functionality uses a NMI on ia32 and amd64
architectures, while on the other has a normal IPI_STOP effect. It is
responsibility of maintainers to eventually implement an hard stop
when necessary and possible.
* Use the new IPI facility in order to implement a new userend SMP kernel
function called stop_cpus_hard(). That is specular to stop_cpu() but
it does use the privileged channel for the stopping facility.
* Let KDB use the newly introduced function stop_cpus_hard() and leave
stop_cpus() for all the other cases
* Disable interrupts on CPU0 when starting the process of APs suspension.
* Style cleanup and comments adding
This patch should fix the reboot/shutdown deadlocks many users are
constantly reporting on mailing lists.
Please don't forget to update your config file with the STOP_NMI
option removal
Reviewed by: jhb
Tested by: pho, bz, rink
Approved by: re (kib)
|
| 195940 |
29-Jul-2009 |
kib |
As was done in r195820 for amd64, use clflush for flushing cache lines
when memory page caching attributes changed, and CPU does not support
self-snoop, but implemented clflush, for i386.
Take care of possible mappings of the page by sf buffer by utilizing
the mapping for clflush, otherwise map the page transiently. Amd64
used direct map.
Proposed and reviewed by: alc
Approved by: re (kensmith)
|
| 195649 |
12-Jul-2009 |
alc |
Add support to the virtual memory system for configuring machine-
dependent memory attributes:
Rename vm_cache_mode_t to vm_memattr_t. The new name reflects the
fact that there are machine-dependent memory attributes that have
nothing to do with controlling the cache's behavior.
Introduce vm_object_set_memattr() for setting the default memory
attributes that will be given to an object's pages.
Introduce and use pmap_page_{get,set}_memattr() for getting and
setting a page's machine-dependent memory attributes. Add full
support for these functions on amd64 and i386 and stubs for them on
the other architectures. The function pmap_page_set_memattr() is also
responsible for any other machine-dependent aspects of changing a
page's memory attributes, such as flushing the cache or updating the
direct map. The uses include kmem_alloc_contig(), vm_page_alloc(),
and the device pager:
kmem_alloc_contig() can now be used to allocate kernel memory with
non-default memory attributes on amd64 and i386.
vm_page_alloc() and the device pager will set the memory attributes
for the real or fictitious page according to the object's default
memory attributes.
Update the various pmap functions on amd64 and i386 that map pages to
incorporate each page's memory attributes in the mapping.
Notes: (1) Inherent to this design are safety features that prevent
the specification of inconsistent memory attributes by different
mappings on amd64 and i386. In addition, the device pager provides a
warning when a device driver creates a fictitious page with memory
attributes that are inconsistent with the real page that the
fictitious page is an alias for. (2) Storing the machine-dependent
memory attributes for amd64 and i386 as a dedicated "int" in "struct
md_page" represents a compromise between space efficiency and the ease
of MFCing these changes to RELENG_7.
In collaboration with: jhb
Approved by: re (kib)
|
| 195376 |
05-Jul-2009 |
sam |
Cleanup ALIGNED_POINTER:
o add to platforms where it was missing (arm, i386, powerpc, sparc64, sun4v)
o define as "1" on amd64 and i386 where there is no restriction
o make the type returned consistent with ALIGN
o remove _ALIGNED_POINTER
o make associated comments consistent
Reviewed by: bde, imp, marcel
Approved by: re (kensmith)
|
| 195249 |
01-Jul-2009 |
jhb |
Improve the handling of cpuset with interrupts.
- For x86, change the interrupt source method to assign an interrupt source
to a specific CPU to return an error value instead of void, thus allowing
it to fail.
- If moving an interrupt to a CPU fails due to a lack of IDT vectors in the
destination CPU, fail the request with ENOSPC rather than panicing.
- For MSI interrupts on x86 (but not MSI-X), only allow cpuset to be used
on the first interrupt in a group. Moving the first interrupt in a group
moves the entire group.
- Use the icu_lock to protect intr_next_cpu() on x86 instead of the
intr_table_lock to fix a LOR introduced in the last set of MSI changes.
- Add a new privilege PRIV_SCHED_CPUSET_INTR for using cpuset with
interrupts. Previously, binding an interrupt to a CPU only performed a
privilege check if the interrupt had an interrupt thread. Interrupts
without a thread could be bound by non-root users as a result.
- If an interrupt event's assign_cpu method fails, then restore the original
cpuset mask for the associated interrupt thread.
Approved by: re (kib)
|
| 195060 |
26-Jun-2009 |
alc |
Correct the #endif comment.
Noticed by: jmallett
Approved by: re (kib)
|
| 195033 |
26-Jun-2009 |
alc |
This change is the next step in implementing the cache control functionality
required by video card drivers. Specifically, this change introduces
vm_cache_mode_t with an appropriate VM_CACHE_DEFAULT definition on all
architectures. In addition, this changes adds a vm_cache_mode_t parameter
to kmem_alloc_contig() and vm_phys_alloc_contig(). These will be the
interfaces for allocating mapped kernel memory and physical memory,
respectively, with non-default cache modes.
In collaboration with: jhb
|
| 195002 |
25-Jun-2009 |
jhb |
Fix kernels compiled without SMP support. Make intr_next_cpu() available
for UP kernels but as a stub that always returns the single CPU's local
APIC ID.
Reported by: kib
|
| 194985 |
25-Jun-2009 |
jhb |
- Restore the behavior of pre-allocating IDT vectors for MSI interrupts.
This is mostly important for the multiple MSI message case where the
IDT vectors for the entire group need to be allocated together. This
also restores the assumptions made by the PCI bus code that it could
invoke PCIB_MAP_MSI() once MSI vectors were allocated.
- To avoid whiplash with CPU assignments, change the way that CPUs are
assigned to interrupt sources on activation. Instead of assigning the
CPU via pic_assign_cpu() before calling enable_intr(), allow the
different interrupt source drivers to ask the MD interrupt code which
CPU to use when they allocate an IDT vector. I/O APIC interrupt pins
do this in their pic_enable_intr() routines giving the same behavior as
before. MSI sources do it when the IDT vectors are allocated during
msi_alloc() and msix_alloc().
- Change the intr_table_lock from an sx lock to a mutex.
Tested by: rnoland
|
| 194611 |
22-Jun-2009 |
alc |
Eliminate dead code. These definitions should have been deleted with the
introduction of i686_mem.c in r45405.
Merge adjacent #ifdef _KERNEL/#endif blocks.
|
| 194295 |
16-Jun-2009 |
jhb |
Move (read|write)_cyrix_reg() inlines from specialreg.h to cpufunc.h.
specialreg.h now consists solely of register-related macros.
|
| 194115 |
13-Jun-2009 |
ed |
Clobber "cc" instead of using volatile.
Submitted by: Christoph Mallon
|
| 194111 |
13-Jun-2009 |
ed |
Clobber "cc" instead of using volatile; remove obsolete register keyword.
Submitted by: Christoph Mallon
|
| 194110 |
13-Jun-2009 |
ed |
Simplify the inline assembler (and correct potential error) of pte_load_store().
Submitted by: Christoph Mallon
|
| 194018 |
11-Jun-2009 |
avg |
strict kobj signatures: fix legacy i386 pcib_write_config impl
Reviewed by: imp, current@
Approved by: jhb (mentor)
|
| 193662 |
07-Jun-2009 |
adrian |
Decouple the i386 native and i386 Xen APIC definitions a little further.
I'm experimenting locally with xen APIC emulation a bit and this
makes it easier to migrate APIC entries between being bitmapped and
not being bitmapped.
|
| 193154 |
31-May-2009 |
adrian |
Fix the MP IPI code to differentiate between bitmapped IPIs and function IPIs.
This attempts to fix the IPI handling code to correctly differentiate
between bitmapped IPIs and function IPIs. The Xen IPIs were on low numbers
which clashed with the bitmapped IPIs.
This commit bumps those IPI numbers up to 240 and above (just like in the i386
code) and fiddles with the ipi_vectors[] logic to call the correct function.
This still isn't "right". Specifically, the IPI code may work fine for TLB
shootdown events but the rendezvous/lazypmap IPIs are thrown by calling ipi_*()
routines which don't set the call_func stuff (function id, addr1, addr2) that
the TLB shootdown events are. So the Xen SMP support is still broken.
PR: 135069
|
| 193034 |
29-May-2009 |
adrian |
Revert to 2-clause.
|
| 193032 |
29-May-2009 |
adrian |
Migrate the Xen hypervisor clock reading routines into something
sharable.
|
| 192331 |
18-May-2009 |
jhb |
Bump CACHE_LINE_SIZE to 128 for x86. Intel's manuals explicitly recommend
using 128 byte alignment for locks. (See IA-32 SDM Vol 3A 7.11.6.7)
|
| 192114 |
14-May-2009 |
attilio |
FreeBSD right now support 32 CPUs on all the architectures at least.
With the arrival of 128+ cores it is necessary to handle more than that.
One of the first thing to change is the support for cpumask_t that needs
to handle more than 32 bits masking (which happens now). Some places,
however, still assume that cpumask_t is a 32 bits mask.
Fix that situation by using always correctly cpumask_t when needed.
While here, remove the part under STOP_NMI for the Xen support as it
is broken in any case.
Additively make ipi_nmi_pending as static.
Reviewed by: jhb, kmacy
Tested by: Giovanni Trematerra <giovanni dot trematerra at gmail dot com>
|
| 192050 |
13-May-2009 |
jhb |
Implement simple machine check support for amd64 and i386.
- For CPUs that only support MCE (the machine check exception) but not MCA
(i.e. Pentium), all this does is print out the value of the machine check
registers and then panic when a machine check exception occurs.
- For CPUs that support MCA (the machine check architecture), the support is
a bit more involved.
- First, there is limited support for decoding the CPU-independent MCA
error codes in the kernel, and the kernel uses this to output a short
description of any machine check events that occur.
- When a machine check exception occurs, all of the MCx banks on the
current CPU are scanned and any events are reported to the console
before panic'ing.
- To catch events for correctable errors, a periodic timer kicks off a
task which scans the MCx banks on all CPUs. The frequency of these
checks is controlled via the "hw.mca.interval" sysctl.
- Userland can request an immediate scan of the MCx banks by writing
a non-zero value to "hw.mca.force_scan".
- If any correctable events are encountered, the appropriate details
are stored in a 'struct mca_record' (defined in <machine/mca.h>).
The "hw.mca.count" is a count of such records and each record may
be queried via the "hw.mca.records" tree by specifying the record
index (0 .. count - 1) as the next name in the MIB similar to using
PIDs with the kern.proc.* sysctls. The idea is to export machine
check events to userland for more detailed processing.
- The periodic timer and hw.mca sysctls are only present if the CPU
supports MCA.
Discussed with: emaste (briefly)
MFC after: 1 month
|
| 191766 |
03-May-2009 |
mav |
Rename statclock_disable variable to atrtcclock_disable that it actually is,
and hide it inside of atrtc driver. Add new tunable hint.atrtc.0.clock
controlling it. Setting it to 0 disables using RTC clock as stat-/
profclock sources.
Teach i386 and amd64 SMP platforms to emulate stat-/profclocks using i8254
hardclock, when LAPIC and RTC clocks are disabled.
This allows to reduce global interrupt rate of idle system down to about
100 interrupts per core, permitting C3 and deeper C-states provide maximum
CPU power efficiency.
|
| 191745 |
02-May-2009 |
mav |
Add support for using i8254 and rtc timers as event sources for i386 SMP
system. Redistribute hard-/stat-/profclock events to other CPUs using IPI.
|
| 191648 |
29-Apr-2009 |
jeff |
- Add support for cpuid leaf 0xb. This allows us to determine the
topology of nehalem/corei7 based systems.
- Remove the cpu_cores/cpu_logical detection from identcpu.
- Describe the layout of the system in cpu_mp_announce().
Sponsored by: Nokia
|
| 191309 |
20-Apr-2009 |
rwatson |
Don't conditionally define CACHE_LINE_SHIFT, as we anticipate sizing
a fair number of static data structures, making this an unlikely
option to try to change without also changing source code. [1]
Change default cache line size on ia64, sparc64, and sun4v to 128
bytes, as this was what rtld-elf was already using on those
platforms. [2]
Suggested by: bde [1], jhb [2]
MFC after: 2 weeks
|
| 191278 |
19-Apr-2009 |
rwatson |
Add description and cautionary note regarding CACHE_LINE_SIZE.
MFC after: 2 weeks
Suggested by: alc
|
| 191276 |
19-Apr-2009 |
rwatson |
For each architecture, define CACHE_LINE_SHIFT and a derived
CACHE_LINE_SIZE constant. These constants are intended to
over-estimate the cache line size, and be used at compile-time
when a run-time tuning alternative isn't appropriate or
available.
Defaults for all architectures are 64 bytes, except powerpc
where it is 128 bytes (used on G5 systems).
MFC after: 2 weeks
Discussed on: arch@
|
| 191111 |
15-Apr-2009 |
jkim |
A simple rewrite of biossmap.c:
- Do not iterate int 15h, function e820h twice. Instead, we use STAILQ to
store each return buffer and copy all at once.
- Export optional extended attributes defined in ACPI 3.0 as separate
metadata. Currently, there are only two bits defined in the specification.
For example, if the descriptor has extended attributes and it is not
enabled, it has to be ignored by OS. We may implement it in the kernel
later if it is necessary and proven correct in reality.
- Check return buffer size strictly as suggested in ACPI 3.0.
Reviewed by: jhb
|
| 190919 |
11-Apr-2009 |
ed |
Simplify in/out functions (for i386 and AMD64).
Remove a hack to generate more efficient code for port numbers below
0x100, which has been obsolete for at least ten years, because GCC has
an asm constraint to specify that.
Submitted by: Christoph Mallon <christoph mallon gmx de>
|
| 190854 |
08-Apr-2009 |
ed |
Also remove the unused __word_swap_int*() macros.
Submitted by: Christoph Mallon <christoph.mallon@gmx.de>
|
| 190853 |
08-Apr-2009 |
ed |
Implement __bswap16() without using inline assembly.
Most compilers nowadays (including GCC) are smart enough to know what's
going on and generate more efficient code anyway.
Submitted by: Christoph Mallon <christoph.mallon@gmx.de>
|
| 190705 |
04-Apr-2009 |
alc |
Retire VM_PROT_READ_IS_EXEC. It was intended to be a micro-optimization,
but I see no benefit from it today.
VM_PROT_READ_IS_EXEC was only intended for use on processors that do not
distinguish between read and execute permission. On an mmap(2) or
mprotect(2), it automatically added execute permission if the caller
specified permissions included read permission. The hope was that this
would reduce the number of vm map entries needed to implement an address
space because there would be fewer neighboring vm map entries that differed
only in the presence or absence of VM_PROT_EXECUTE. (See vm/vm_mmap.c
revision 1.56.)
Today, I don't see any real applications that benefit from
VM_PROT_READ_IS_EXEC. In any case, vm map entries are now organized
as a self-adjusting binary search tree instead of an ordered list. So,
the need for coalescing vm map entries is not as great as it once was.
|
| 190627 |
01-Apr-2009 |
dfr |
Fix the Xen build for i386 PV mode.
|
| 190623 |
01-Apr-2009 |
kib |
Sync definitions for struct sigcontext for i386 and amd64 architectures
to struct mcontext.
|
| 190616 |
01-Apr-2009 |
kib |
Add all segment registers for the amd64 CPU to struct reg and mcontext.
To keep these structures ABI-compatible, half the size of r_trapno,
r_err, mc_trapno, mc_flags.
Add fsbase and gsbase to mcontext on both amd64 and i386.
Add flags to amd64 mcontext to indicate that it contains valid segments
or bases.
In collaboration with: pho
Discussed with: peter
Reviewed by: jhb
|
| 190272 |
22-Mar-2009 |
alc |
Update stale comments. The alternate address space mapping was eliminated
when PAE support was added to i386. The direct mapping exists on amd64.
|
| 189926 |
17-Mar-2009 |
kib |
Add AT_EXECPATH ELF auxinfo entry type. The value's a_ptr is a pointer
to the full path of the image that is being executed.
Increase AT_COUNT.
Remove no longer true comment about types used in Linux ELF binaries,
listed types contain FreeBSD-specific entries.
Reviewed by: kan
|
| 189699 |
11-Mar-2009 |
dfr |
Merge in support for Xen HVM on amd64 architecture.
|
| 189423 |
05-Mar-2009 |
jhb |
A better fix for handling different FPU initial control words for different
ABIs:
- Store the FPU initial control word in the pcb for each thread.
- When first using the FPU, load the initial control word after restoring
the clean state if it is not the standard control word.
- Provide a correct control word for Linux/i386 binaries under
FreeBSD/amd64.
- Adjust the control word returned for fpugetregs()/npxgetregs() when a
thread hasn't used the FPU yet to reflect the real initial control
word for the current ABI.
- The Linux/i386 ABI for FreeBSD/i386 now properly sets the right control
word instead of trashing whatever the current state of the FPU is.
Reviewed by: bde
|
| 189418 |
05-Mar-2009 |
jhb |
Some cleanups to the i386 FPU support:
- Remove the control word parameter to npxinit(). It was always set
to __INITIAL_NPXCW__.
- Remove npx_cleanstate_ready as the cleanstate is always initalized
when it is used.
- Improve the handling of the case when the FPU isn't present. Now
the npx0 device no longer succeeds in its probe so all of npx_attach()
is skipped. Also, we allow this case with SMP (though that shouldn't
actually occur as all i386 systems that support SMP have FPUs) now.
SMP was only an issue back when we had an FPU emulator which was not
per-CPU.
- MFamd64: Clear some of the state in npx_cleanstate rather than leaving
it as garbage.
- MFamd64: When a user thread first uses the FPU, use npx_cleanstate for
the initial FPU state.
Reviewed by: bde
|
| 187948 |
31-Jan-2009 |
obrien |
Change some movl's to mov's. Newer GAS no longer accept 'movl' instructions
for moving between a segment register and a 32-bit memory location.
Looked at by: jhb
|
| 187880 |
29-Jan-2009 |
jeff |
- Allocate apic vectors on a per-cpu basis. This allows us to allocate
more irqs as we have more cpus. This is principally useful on systems
with msi devices which may want many irqs per-cpu.
Discussed with: jhb
Sponsored by: Nokia
|
| 186557 |
29-Dec-2008 |
kmacy |
merge 186535, 186537, and 186538 from releng_7_xen
Log:
- merge in latest xenbus from dfr's xenhvm
- fix race condition in xs_read_reply by converting tsleep to mtx_sleep
Log:
unmask evtchn in bind_{virq, ipi}_to_irq
Log:
- remove code for handling case of not being able to sleep
- eliminate tsleep - make sleeps atomic
|
| 186212 |
17-Dec-2008 |
imp |
AT_DEBUG and AT_BRK were OBE like 10 years ago, so retire them.
Reviewed by: peter
|
| 186009 |
12-Dec-2008 |
jkim |
Add more CPUID bits from AMD CPUID Specification Rev. 2.28.
|
| 185933 |
11-Dec-2008 |
jhb |
Add constants for fields in the local APIC error status register and a
routine to read it.
|
| 185720 |
06-Dec-2008 |
kib |
Restore memory clobber, to cause mb on the compiler level too.
Use more sane formatting of the assembler.
Pointed out by: bde
|
| 185651 |
05-Dec-2008 |
kib |
Unconditionally use locked addition of zero to tip of the stack for
memory barriers on i386. It works as a serialization instruction on
all IA32 CPUs.
Alternative solution of using {s,l,}fence requires run-time checking
of the presense of the corresponding SSE or SSE2 extensions, and
possible boot-time patching of the kernel text.
Suggested by: many
|
| 185605 |
04-Dec-2008 |
kmacy |
Integrate 185578 from dfr
Use newbus to managed devices
|
| 185363 |
27-Nov-2008 |
jkoshy |
- Add support for PMCs in Intel CPUs of Family 6, model 0xE (Core Solo
and Core Duo), models 0xF (Core2), model 0x17 (Core2Extreme) and
model 0x1C (Atom).
In these CPUs, the actual numbers, kinds and widths of PMCs present
need to queried at run time. Support for specific "architectural"
events also needs to be queried at run time.
Model 0xE CPUs support programmable PMCs, subsequent CPUs
additionally support "fixed-function" counters.
- Use event names that are close to vendor documentation, taking in
account that:
- events with identical semantics on two or more CPUs in this family
can have differing names in vendor documentation,
- identical vendor event names may map to differing events across
CPUs,
- each type of CPU supports a different subset of measurable
events.
Fixed-function and programmable counters both use the same vendor
names for events. The use of a class name prefix ("iaf-" or
"iap-" respectively) permits these to be distinguished.
- In libpmc, refactor pmc_name_of_event() into a public interface
and an internal helper function, for use by log handling code.
- Minor code tweaks: staticize a global, freshen a few comments.
Tested by: gnn
|
| 185341 |
26-Nov-2008 |
jkim |
Introduce cpu_vendor_id and replace a lot of strcmp(cpu_vendor, "...").
Reviewed by: jhb, peter (early amd64 version)
|
| 185162 |
22-Nov-2008 |
kmacy |
- bump __FreeBSD version to reflect added buf_ring, memory barriers,
and ifnet functions
- add memory barriers to <machine/atomic.h>
- update drivers to only conditionally define their own
- add lockless producer / consumer ring buffer
- remove ring buffer implementation from cxgb and update its callers
- add if_transmit(struct ifnet *ifp, struct mbuf *m) to ifnet to
allow drivers to efficiently manage multiple hardware queues
(i.e. not serialize all packets through one ifq)
- expose if_qflush to allow drivers to flush any driver managed queues
This work was supported by Bitgravity Inc. and Chelsio Inc.
|
| 184802 |
09-Nov-2008 |
jkoshy |
- Separate PMC class dependent code from other kinds of machine
dependencies. A 'struct pmc_classdep' structure describes operations
on PMCs; 'struct pmc_mdep' contains one or more 'struct pmc_classdep'
structures depending on the CPU in question.
Inside PMC class dependent code, row indices are relative to the
PMCs supported by the PMC class; MI code in "hwpmc_mod.c" translates
global row indices before invoking class dependent operations.
- Augment the OP_GETCPUINFO request with the number of PMCs present
in a PMC class.
- Move code common to Intel CPUs to file "hwpmc_intel.c".
- Move TSC handling to file "hwpmc_tsc.c".
|
| 184224 |
24-Oct-2008 |
kmacy |
Fix general issues with IPI support
|
| 184198 |
23-Oct-2008 |
kmacy |
Fix IPI support
|
| 184146 |
22-Oct-2008 |
jkim |
Set kern.timecounter.invariant_tsc to 1 for AMD CPU family 10h and higher
even if BIOS does not advertise it.
|
| 184113 |
21-Oct-2008 |
kmacy |
don't globally define ipi_bitmap_handler on xen
|
| 184110 |
21-Oct-2008 |
kmacy |
Header cleanups and addition of IPI declarations for xen
|
| 184102 |
21-Oct-2008 |
jkim |
Turn off CPU frequency change notifiers when the TSC is P-state invariant
or it is forced by setting 'kern.timecounter.invariant_tsc' tunable
to non-zero.
|
| 184101 |
21-Oct-2008 |
jkim |
Detect Advanced Power Management Information for AMD CPUs.
|
| 184040 |
19-Oct-2008 |
kmacy |
- move gdt, ldt allocation to before KPT allocation
- fix bugs where we would:
- try to map the hypervisors address space
- accidentally kick out an existing kernel mapping for some domain creation memory allocation sizes
- accidentally skip a 2MB kernel mapping for some domain creation memory allocation sizes
- don't rely on trapping in to xen to read rcr2, reference through vcpu
- whitespace cleanups
|
| 184039 |
19-Oct-2008 |
kmacy |
GC unused values
|
| 183525 |
01-Oct-2008 |
jhb |
Bump MAXCPU to 32 now that 32 CPU x86 systems exist.
Tested by: rwatson, mdtansca
Approved by: peter
|
| 183439 |
28-Sep-2008 |
marius |
Remove ipi_all() and ipi_self() as the former hasn't been used at
all to date and the latter also is only used in ia64 and powerpc
code which no longer serves a real purpose after bring-up and just
can be removed as well. Note that architectures like sun4u also
provide no means of implementing IPI'ing a CPU itself natively
in the first place.
Suggested by: jhb
Reviewed by: arch, grehan, jhb
|
| 183379 |
26-Sep-2008 |
kmacy |
move ipi_pcpu to evtchn.c
|
| 183344 |
25-Sep-2008 |
kmacy |
add ipi mapping
MFC after: 1 month
|
| 183343 |
25-Sep-2008 |
kmacy |
add NPGPTD_SHIFT for the nkpt calculation
MFC after: 1 month
|
| 183128 |
17-Sep-2008 |
jhb |
MFamd64: More CPUID feature flags: SSE4, X2APIC, POPCNT, DTES64, and 1GB
large pages.
MFC after: 1 month
|
| 183033 |
15-Sep-2008 |
jkoshy |
Correct a callchain capture bug on the i386.
On the i386 architecture, the processor only saves the current value
of `%esp' on stack if a privilege switch is necessary when entering
the interrupt handler. Thus, `frame->tf_esp' is only valid for
an entry from user mode. For interrupts taken in kernel mode, we
need to determine the top-of-stack for the interrupted kernel
procedure by adding the appropriate offset to the current frame
pointer.
Reported by: kris, Fabien Thomas
Tested by: Fabien Thomas <fabien.thomas at netasq dot com>
|
| 182961 |
12-Sep-2008 |
kib |
When doing rfork(0), i.e. separating curproc VM from any other user of
the same vmspace, decrement the reference count of the shared LDT instead
of a newly-made copy. Code factually removed LDT from the process that
did rfork(0).
Introduce user_ldt_deref() function that does decrement of refcount for
the struct proc_ldt, and call it in the rfork(0) case on the shared LDT.
Reviewed by: jhb
MFC after: 1 week
|
| 182902 |
10-Sep-2008 |
kmacy |
Get initial bootstrap of APs working under xen.
Note that the APs still blow up in sched_throw().
MFC after: 1 month
|
| 182790 |
05-Sep-2008 |
jkoshy |
Correct a copy-paste error---do not look for REX prefixes in i386 code.
|
| 181987 |
22-Aug-2008 |
jhb |
Extend the support for PCI-e memory mapped configuration space access:
- Rename pciereg_cfgopen() to pcie_cfgregopen() and expose it to the
rest of the kernel. It now also accepts parameters via function
arguments rather than global variables.
- Add a notion of minimum and maximum bus numbers and reject requests for
an out of range bus.
- Add more range checks on slot/func/reg/bytes parameters to the cfg reg
read/write routines. Don't panic on any invalid parameters, just fail
the request (writes do nothing, reads return -1). This matches the
behavior of the other cfg mechanisms.
- Port the memory mapped configuration space access to amd64. On amd64
we simply use the direct map (via pmap_mapdev()) for the memory mapped
window.
- During acpi_attach() just after loading the ACPI tables, check for a
MCFG table. If it exists, call pciereg_cfgopen() on each subtable
(memory mapped window). For now we only support windows for domain 0
that start with bus 0. This removes the need for more chipset-specific
quirks in the MD code.
- Remove the chipset-specific quirks for the Intel 5000P/V/Z chipsets
since these machines should all have MCFG tables via ACPI.
- Updated pci_cfgregopen() to DTRT if ACPI had invoked pcie_cfgregopen()
earlier.
MFC after: 2 weeks
|
| 181911 |
20-Aug-2008 |
kmacy |
- clean up interrupt handling for xen a tiny bit
- parse the command line in to kenv
- defer shutdown watcher until later in boot
MFC after: 1 month
|
| 181875 |
19-Aug-2008 |
jhb |
Export 'struct pcpu' to userland w/o requiring _KERNEL. A few ports
already define _KERNEL to get to this and I'm about to add hooks to
libkvm to access per-CPU data.
MFC after: 1 week
|
| 181864 |
19-Aug-2008 |
kmacy |
remove redundant PT_SET_MA declaration
MFC after: 1 month
|
| 181854 |
18-Aug-2008 |
kmacy |
PT_UPDATES_FLUSH() is used in common code so it needs to be defined
even in the !defined(XEN) case
MFC after: 1 month
|
| 181810 |
17-Aug-2008 |
kmacy |
Ensure that machine / physical addresses are treated as vm_paddr_t
MFC after: 1 month
|
| 181775 |
15-Aug-2008 |
kmacy |
Integrate support for xen in to i386 common code.
MFC after: 1 month
|
| 181747 |
15-Aug-2008 |
kmacy |
Compile fixes for xen build.
MFC after: 1 month.
|
| 181638 |
12-Aug-2008 |
kmacy |
Import xen sub-arch includes.
MFC after: 2 weeks
|
| 181430 |
08-Aug-2008 |
stas |
- Add cpuctl(4) pseudo-device driver to provide access to some low-level
features of CPUs like reading/writing machine-specific registers,
retrieving cpuid data, and updating microcode.
- Add cpucontrol(8) utility, that provides userland access to
the features of cpuctl(4).
- Add subsequent manpages.
The cpuctl(4) device operates as follows. The pseudo-device node cpuctlX
is created for each cpu present in the systems. The pseudo-device minor
number corresponds to the cpu number in the system. The cpuctl(4) pseudo-
device allows a number of ioctl to be preformed, namely RDMSR/WRMSR/CPUID
and UPDATE. The first pair alows the caller to read/write machine-specific
registers from the correspondent CPU. cpuid data could be retrieved using
the CPUID call, and microcode updates are applied via UPDATE.
The permissions are inforced based on the pseudo-device file permissions.
RDMSR/CPUID will be allowed when the caller has read access to the device
node, while WRMSR/UPDATE will be granted only when the node is opened
for writing. There're also a number of priv(9) checks.
The cpucontrol(8) utility is intened to provide userland access to
the cpuctl(4) device features. The utility also allows one to apply
cpu microcode updates.
Currently only Intel and AMD cpus are supported and were tested.
Approved by: kib
Reviewed by: rpaulo, cokane, Peter Jeremy
MFC after: 1 month
|
| 181284 |
04-Aug-2008 |
alc |
Make pmap_kenter_attr() static.
|
| 180756 |
23-Jul-2008 |
luoqi |
Unbreak cc -pg support on i386. In gcc 4.2, %ecx is used as the arg pointer
when stack realignment is turned on (it is ALWAYS on for main), however
in a profiling build %ecx would be clobbered by mcount(), this would lead
to a segmentation fault when the code tries to reference any argument.
This fix changes mcount() to preserve %ecx.
PR: bin/119709
Reviewed by: bde
MFC after: 1 week
|
| 179991 |
25-Jun-2008 |
ed |
Remove the unused M_MEMDEV from the kernel.
The M_MEMDEV memory allocation pool does not seem to be used. We can
live without it.
Approved by: philip (mentor)
|
| 179990 |
25-Jun-2008 |
ed |
Remove the unused major/minor numbers from iodev and memdev.
Now that st_rdev is being automatically generated by the kernel, there
is no need to define static major/minor numbers for the iodev and
memdev. We still need the minor numbers for the memdev, however, to
distinguish between /dev/mem and /dev/kmem.
Approved by: philip (mentor)
|
| 179785 |
14-Jun-2008 |
wkoszek |
Remove obselete PECOFF image activator support.
PRs assigned at the time of removal: kern/80742
Discussed on: freebsd-current (silence), IRC
Tested by: make universe
Approved by: cognet (mentor)
|
| 178471 |
25-Apr-2008 |
jeff |
- Add an integer argument to idle to indicate how likely we are to wake
from idle over the next tick.
- Add a new MD routine, cpu_wake_idle() to wakeup idle threads who are
suspended in cpu specific states. This function can fail and cause the
scheduler to fall back to another mechanism (ipi).
- Implement support for mwait in cpu_idle() on i386/amd64 machines that
support it. mwait is a higher performance way to synchronize cpus
as compared to hlt & ipis.
- Allow selecting the idle routine by name via sysctl machdep.idle. This
replaces machdep.cpu_idle_hlt. Only idle routines supported by the
current machine are permitted.
Sponsored by: Nokia
|
| 178429 |
22-Apr-2008 |
phk |
Now that all platforms use genclock, shuffle things around slightly
for better structure.
Much of this is related to <sys/clock.h>, which should really have
been called <sys/calendar.h>, but unless and until we need the name,
the repocopy can wait.
In general the kernel does not know about minutes, hours, days,
timezones, daylight savings time, leap-years and such. All that
is theoretically a matter for userland only.
Parts of kernel code does however care: badly designed filesystems
store timestamps in local time and RTC chips almost universally
track time in a YY-MM-DD HH:MM:SS format, and sometimes in local
timezone instead of UTC. For this we have <sys/clock.h>
<sys/time.h> on the other hand, deals with time_t, timeval, timespec
and so on. These know only seconds and fractions thereof.
Move inittodr() and resettodr() prototypes to <sys/time.h>.
Retain the names as it is one of the few surviving PDP/VAX references.
Move startrtclock() to <machine/clock.h> on relevant platforms, it
is a MD call between machdep.c/clock.c. Remove references to it
elsewhere.
Remove a lot of unnecessary <sys/clock.h> includes.
Move the machdep.disable_rtc_set sysctl to subr_rtc.c where it belongs.
XXX: should be kern.disable_rtc_set really, it's not MD.
|
| 178299 |
18-Apr-2008 |
jeff |
- Add inlines for the monitor and mwait instructions.
Sponsored by: Nokia
|
| 178193 |
14-Apr-2008 |
phk |
Convert amd64 and i386 to share the atrtc device driver.
|
| 177661 |
27-Mar-2008 |
jb |
When building a kernel module, define MAXCPU the same as SMP so
that modules work with and without SMP.
|
| 177659 |
27-Mar-2008 |
alc |
MFamd64 with few changes:
1. Add support for automatic promotion of 4KB page mappings to 2MB page
mappings. Automatic promotion can be enabled by setting the tunable
"vm.pmap.pg_ps_enabled" to a non-zero value. By default, automatic
promotion is disabled. Tested by: kris
2. To date, we have assumed that the TLB will only set the PG_M bit in a
PTE if that PTE has the PG_RW bit set. However, this assumption does
not hold on recent processors from Intel. For example, consider a PTE
that has the PG_RW bit set but the PG_M bit clear. Suppose this PTE
is cached in the TLB and later the PG_RW bit is cleared in the PTE,
but the corresponding TLB entry is not (yet) invalidated.
Historically, upon a write access using this (stale) TLB entry, the
TLB would observe that the PG_RW bit had been cleared and initiate a
page fault, aborting the setting of the PG_M bit in the PTE. Now,
however, P4- and Core2-family processors will set the PG_M bit before
observing that the PG_RW bit is clear and initiating a page fault. In
other words, the write does not occur but the PG_M bit is still set.
The real impact of this difference is not that great. Specifically,
we should no longer assert that any PTE with the PG_M bit set must
also have the PG_RW bit set, and we should ignore the state of the
PG_M bit unless the PG_RW bit is set.
|
| 177642 |
26-Mar-2008 |
phk |
The "free-lance" timer in the i8254 is only used for the speaker
these days, so de-generalize the acquire_timer/release_timer api
to just deal with speakers.
The new (optional) MD functions are:
timer_spkr_acquire()
timer_spkr_release()
and
timer_spkr_setfreq()
the last of which configures the timer to generate a tone of a given
frequency, in Hz instead of 1/1193182th of seconds.
Drop entirely timer2 on pc98, it is not used anywhere at all.
Move sysbeep() to kern/tty_cons.c and use the timer_spkr*() if
they exist, and do nothing otherwise.
Remove prototypes and empty acquire-/release-timer() and sysbeep()
functions from the non-beeping archs.
This eliminate the need for the speaker driver to know about
i8254frequency at all. In theory this makes the speaker driver MI,
contingent on the timer_spkr_*() functions existing but the driver
does not know this yet and still attaches to the ISA bus.
Syscons is more tricky, in one function, sc_tone(), it knows the hz
and things are just fine.
In the other function, sc_bell() it seems to get the period from
the KDMKTONE ioctl in terms if 1/1193182th second, so we hardcode
the 1193182 and leave it at that. It's probably not important.
Change a few other sysbeep() uses which obviously knew that the
argument was in terms of i8254 frequency, and leave alone those
that look like people thought sysbeep() took frequency in hertz.
This eliminates the knowledge of i8254_freq from all but the actual
clock.c code and the prof_machdep.c on amd64 and i386, where I think
it would be smart to ask for help from the timecounters anyway [TBD].
|
| 177631 |
26-Mar-2008 |
phk |
Rename timer0_max_count to i8254_max_count.
Rename timer0_real_max_count to i8254_real_max_count and make it static.
Rename timer_freq to i8254_freq and make it a loader tunable.
|
| 177628 |
26-Mar-2008 |
phk |
The RTC related pscnt and psdiv variables have no business being public.
|
| 177624 |
26-Mar-2008 |
alc |
Enable the automatic creation of superpage reservations.
|
| 177276 |
16-Mar-2008 |
pjd |
Implement atomic_fetchadd_long() for all architectures and document it.
Reviewed by: attilio, jhb, jeff, kris (as a part of the uidinfo_waitfree.patch)
|
| 177181 |
14-Mar-2008 |
jhb |
Add preliminary support for binding interrupts to CPUs:
- Add a new intr_event method ie_assign_cpu() that is invoked when the MI
code wishes to bind an interrupt source to an individual CPU. The MD
code may reject the binding with an error. If an assign_cpu function
is not provided, then the kernel assumes the platform does not support
binding interrupts to CPUs and fails all requests to do so.
- Bind ithreads to CPUs on their next execution loop once an interrupt
event is bound to a CPU. Only shared ithreads are bound. We currently
leave private ithreads for drivers using filters + ithreads in the
INTR_FILTER case unbound.
- A new intr_event_bind() routine is used to bind an interrupt event to
a CPU.
- Implement binding on amd64 and i386 by way of the existing pic_assign_cpu
PIC method.
- For x86, provide a 'intr_bind(IRQ, cpu)' wrapper routine that looks up
an interrupt source and binds its interrupt event to the specified CPU.
MI code can currently (ab)use this by doing:
intr_bind(rman_get_start(irq_res), cpu);
however, I plan to add a truly MI interface (probably a bus_bind_intr(9))
where the implementation in the x86 nexus(4) driver would end up calling
intr_bind() internally.
Requested by: kmacy, gallatin, jeff
Tested on: {amd64, i386} x {regular, INTR_FILTER}
|
| 177157 |
13-Mar-2008 |
jhb |
Rework how the nexus(4) device works on x86 to better handle the idea of
different "platforms" on x86 machines. The existing code already handles
having two platforms: ACPI and legacy. However, the existing approach was
rather hardcoded and difficult to extend. These changes take the approach
that each x86 hardware platform should provide its own nexus(4) driver (it
can inherit most of its behavior from the default legacy nexus(4) driver)
which is responsible for probing for the platform and performing
appropriate platform-specific setup during attach (such as adding a
platform-specific bus device). This does mean changing the x86 platform
busses to no longer use an identify routine for probing, but to move that
logic into their matching nexus(4) driver instead.
- Make the default nexus(4) driver in nexus.c on i386 and amd64 handle the
legacy platform. It's probe routine now returns BUS_PROBE_GENERIC so it
can be overriden.
- Expose a nexus_init_resources() routine which initializes the various
resource managers so that subclassed nexus(4) drivers can invoke it from
their attach routine.
- The legacy nexus(4) driver explicitly adds a legacy0 device in its
attach routine.
- The ACPI driver no longer contains an new-bus identify method. Instead
it exposes a public function (acpi_identify()) which is a probe routine
that the MD nexus(4) drivers can use to probe for ACPI. All of the
probe logic in acpi_probe() is now moved into acpi_identify() and
acpi_probe() is just a stub.
- On i386 and amd64, an ACPI-specific nexus(4) driver checks for ACPI via
acpi_identify() and claims the nexus0 device if the probe succeeds. It
then explicitly adds an acpi0 device in its attach routine.
- The legacy(4) driver no longer knows anything about the acpi0 device.
- On ia64 if acpi_identify() fails you basically end up with no devices.
This matches the previous behavior where the old acpi_identify() would
fail to add an acpi0 device again leaving you with no devices.
Discussed with: imp
Silence on: arch@
|
| 177125 |
12-Mar-2008 |
jhb |
The variable MTRR registers actually have variable-sized PhysBase and
PhysMask fields based on the number of physical address bits supported
by the current CPU. The old code assumed 36 bits on i386 and 40 bits on
amd64. In truth, all Intel CPUs up until recently used 36 bits (a newer
Intel CPU uses 38 bits) and all the Opteron CPUs used 40 bits.
In at least one case (the new Intel CPU) having the size of the mask field
wrong resulted in writing questionable values into the MTRR registers on
the application processors (BSP as well if you modify the MTRRs via
memcontrol or running X, etc.). The result of the questionable physmask
was that all of memory was apparently treated as uncached rather than
write-back resulting in a very significant performance hit.
Fix this by constructing a run-time mask for the PhysBase and PhysMask
fields based on the number of physical address bits supported by the CPU.
All 64-bit capable CPUs provide a count of PA bits supported via the
0x80000008 extended CPUID feature, so use that if it is available. If that
feature is not available, then assume 36 PA bits.
While I'm here, expand the (now-unused) macros for the PhysBase and
PhysMask fields to the current largest possible value (52 PA bits).
MFC after: 1 week
PR: i386/120516
Reported by: Nokia
|
| 177069 |
11-Mar-2008 |
jhb |
Add constants for the various fields in MTRR registers.
MFC after: 1 week
Verified by: md5(1)
|
| 176827 |
05-Mar-2008 |
bde |
Change float_t and double_t to long double on i386. All floating point
expressions on i386 are evaluated in the range of the long double type,
so this is wrong in a different but hopefully less worse way than
before. Since expressions are evaluated in long double registers,
there is no runtime cost to using long double instead of double to
declare intermediate values (except in cases where this avoids compiler
bugs), and by careful use of float_t or double_t it is possible to
avoid some of the compiler bugs in this area, provided these types are
declared as long double.
I was going to change float.h to be less broken and more usable in
combination with the change here (in particular, it is more necessary
to know the effective number of bits in a double_t when double_t !=
double, since DBL_MANT_DIG no longer logically gives this, and
LDBL_MANT_DIG doesn't give it either with FreeBSD-i386's default
rounding precision. However, this was too hard for now. In particular,
LDBL_MANT_DIG is used a lot in libm, so it cannot be changed. One
thing that is completely broken now is LDBL_MAX. This may have sort
of worked when it was changed from DBL_MAX in 2002 (adding 0 to it at
runtime gave +Inf, but you could at least compare with it), but starting
with gcc-3.3.1 in 2003, it is always +Inf due to evaluating it at
compile time in the default rounding precision.
|
| 176826 |
05-Mar-2008 |
bde |
Oops, back out previous commit since it was to the wrong file.
|
| 176825 |
05-Mar-2008 |
bde |
Change float_t and double_t to long double on i386. All floating point
expressions on i386 are evaluated in the range of the long double type,
so this is wrong in a different but hopefully less worse way than
before. Since expressions are evaluated in long double registers,
there is no runtime cost to using long double instead of double to
declare intermediate values (except in cases where this avoids compiler
bugs), and by careful use of float_t or double_t it is possible to
avoid some of the compiler bugs in this area, provided these types are
declared as long double.
I was going to change float.h to be less broken and more usable in
combination with the change here (in particular, it is more necessary
to know the effective number of bits in a double_t when double_t !=
double, since DBL_MANT_DIG no longer logically gives this, and
LDBL_MANT_DIG doesn't give it either with FreeBSD-i386's default
rounding precision. However, this was too hard for now. In particular,
LDBL_MANT_DIG is used a lot in libm, so it cannot be changed. One
thing that is completely broken now is LDBL_MAX. This may have sort
of worked when it was changed from DBL_MAX in 2002 (adding 0 to it at
runtime gave +Inf, but you could at least compare with it), but starting
with gcc-3.3.1 in 2003, it is always +Inf due to evaluating it at
compile time in the default rounding precision.
|
| 176734 |
02-Mar-2008 |
jeff |
- Remove the old smp cpu topology specification with a new, more flexible
tree structure that encodes the level of cache sharing and other
properties.
- Provide several convenience functions for creating one and two level
cpu trees as well as a default flat topology. The system now always
has some topology.
- On i386 and amd64 create a seperate level in the hierarchy for HTT
and multi-core cpus. This will allow the scheduler to intelligently
load balance non-uniform cores. Presently we don't detect what level
of the cache hierarchy is shared at each level in the topology.
- Add a mechanism for testing common topologies that have more information
than the MD code is able to provide via the kern.smp.topology tunable.
This should be considered a debugging tool only and not a stable api.
Sponsored by: Nokia
|
| 175846 |
31-Jan-2008 |
mav |
Move GET_STACK_USAGE from MI header to i386/amd64 MD ones.
Somebody who can, please feel free to implement it for other archs
or copy this one if it suits.
|
| 175329 |
14-Jan-2008 |
peter |
Update the KVA_PAGES comments for the effect that PAE has on it. It
becomes a unit size of 2MB instead of 4MB and must be a multiple of 8 to
get a valid KERNBASE.
|
| 175234 |
11-Jan-2008 |
bde |
MFamd64 (everything possible up to 1.19; mainly the amd64 implementations
of fpget*() and fpset*()).
The i386 fpget*() were efficient but a bit obfuscated (using macros
and a case statement to demultiplex them through a single inline).
The demultiplexing mainly gave smaller source code.
The i386 fpset*() were obfuscated in the same way and were very
inefficient due to the case statement not having enough cases or
complexity so all cases used the FP environment.
This also fixes a harmless bug in rev.1.12. fpsetmask() extracted the
old value from the bit-field twice, but the doubled shift was harmless
since the shift count is 0.
All fp*() interfaces are now inline functions on i386. They used to
be macros that call (a different set of) inline functions. This is a
small ABI change which shouldn't cause problems since cases where
inlining fails (mainly -O0) only give (working) static functions.
|
| 175233 |
11-Jan-2008 |
bde |
Separate fpresetsticky() from the other fpset functions so that the
others can be replaced cleanly by the amd64 versions. There is no
current amd64 version to merge, but there is an old one which is
similar.
Fix the following bugs in fpresetsticky():
- garbage args clobbered non-sticky bits in the status register
- the return value was usually garbage since it was masked with the
arg instead of with the field selector.
Optimize fpresetsticky() to avoid using the environment as in
feclearexcept() (use only fnclex() if possible) and also to avoid
using fnclex() for null changes. The second of these optimizations
might not be so good since its branch might cost more than it saves.
|
| 175232 |
11-Jan-2008 |
bde |
MFamd64 1.15-1.18 (cosmetic changes, mainly to comments). The inline
functions haven't been cleaned up here because the amd64 cleanups
don't apply directly and the functions here will be merged or rewritten
later.
|
| 175119 |
06-Jan-2008 |
alc |
Shrink the size of struct vm_page on amd64 and i386 by eliminating
pv_list_count from struct md_page. Ever since Peter rewrote the pv
entry allocator for amd64 and i386 pv_list_count has been correctly
maintained but otherwise unused.
|
| 174938 |
27-Dec-2007 |
alc |
Add configuration knobs for the superpage reservation system. Initially,
the reservation will only be enabled on amd64.
|
| 174395 |
07-Dec-2007 |
jkoshy |
Kernel and hwpmc(4) support for callchain capture.
Sponsored by: FreeBSD Foundation and Google Inc.
|
| 174195 |
02-Dec-2007 |
rwatson |
Break out stack(9) from ddb(4):
- Introduce per-architecture stack_machdep.c to hold stack_save(9).
- Introduce per-architecture machine/stack.h to capture any common
definitions required between db_trace.c and stack_machdep.c.
- Add new kernel option "options STACK"; we will build in stack(9) if it is
defined, or also if "options DDB" is defined to provide compatibility
with existing users of stack(9).
Add new stack_save_td(9) function, which allows the capture of a stacktrace
of another thread rather than the current thread, which the existing
stack_save(9) was limited to. It requires that the thread be neither
swapped out nor running, which is the responsibility of the consumer to
enforce.
Update stack(9) man page.
Build tested: amd64, arm, i386, ia64, powerpc, sparc64, sun4v
Runtime tested: amd64 (rwatson), arm (cognet), i386 (rwatson)
|
| 173592 |
13-Nov-2007 |
peter |
Drastically simplify the i386 pcpu backend by merging parts of the
amd64 mechanism over. Instead of page table hackery that isn't
actually needed, just use 'struct pcpu __pcpu[MAXCPU]' for backing like
all the other platforms do. Get rid of 'struct privatespace' and a
while mess of #ifdef SMP garbage that set it up. As a bonus, this
returns the 4MB of KVA that we stole to implement it the old way.
This also allows you to read the pcpu data for each cpu when reading a
minidump.
Background information: Originally, pcpu stuff was implemented as having
per-cpu page tables and magic to make different data structures appear
at the same actual address. In order to share page tables, we switched
to using the GDT and %fs/%gs to access it. But we still did the evil
magic to set it up for the old way. The "idle stacks" are not used
for the idle process anymore and are just used for a few functions during
bootup, then ignored. (excercise for reader: free these afterwards).
|
| 173118 |
28-Oct-2007 |
jhb |
- Add constants for the different memory types in the SMAP table.
- Use the SMAP types and constants from <machine/pc/bios.h> in the boot
code rather than duplicating it.
|
| 172998 |
26-Oct-2007 |
peter |
Split /dev/nvram driver out of isa/clock.c for i386 and amd64. I have not
refactored it to be a generic device.
Instead of being part of the standard kernel, there is now a 'nvram' device
for i386/amd64. It is in DEFAULTS like io and mem, and can be turned off
with 'nodevice nvram'. This matches the previous behavior when it was
first committed.
|
| 172921 |
24-Oct-2007 |
jhb |
Slightly cleanup the 'bootdev' concept on x86 by changing the various
macros to treat the 'slice' field as a real part of the bootdev instead
of as hack that spans two other fields (adaptor (sic) and controller)
that are not used in any modern FreeBSD boot code.
MFC after: 1 week
|
| 172835 |
20-Oct-2007 |
bz |
Fold multiple asm statements into one so that the compiler at a certain
optimization level (-march=pentium-mmx for example) does not insert
intermediate ops which would trash the carry.
Change both sys/i386/i386/in_cksum.c[1] and sys/i386/include/in_cksum.h.
To my best understanding the same problem was addressed in rev. 1.16
of src/sys/i386/include/in_cksum.h for just a single function 3y ago.
Reviewed by: jhb
Submitted by: Zhouyi ZHOU <zhouzhouyi FreeBSD.org> (intial version of [1])
MFC after: 5 days
PR: 115678, 69257
|
| 172394 |
30-Sep-2007 |
marius |
Make the PCI code aware of PCI domains (aka PCI segments) so we can
support machines having multiple independently numbered PCI domains
and don't support reenumeration without ambiguity amongst the
devices as seen by the OS and represented by PCI location strings.
This includes introducing a function pci_find_dbsf(9) which works
like pci_find_bsf(9) but additionally takes a domain number argument
and limiting pci_find_bsf(9) to only search devices in domain 0 (the
only domain in single-domain systems). Bge(4) and ofw_pcibus(4) are
changed to use pci_find_dbsf(9) instead of pci_find_bsf(9) in order
to no longer report false positives when searching for siblings and
dupe devices in the same domain respectively.
Along with this change the sole host-PCI bridge driver converted to
actually make use of PCI domain support is uninorth(4), the others
continue to use domain 0 only for now and need to be converted as
appropriate later on.
Note that this means that the format of the location strings as used
by pciconf(8) has been changed and that consumers of <sys/pciio.h>
potentially need to be recompiled.
Suggested by: jhb
Reviewed by: grehan, jhb, marcel
Approved by: re (kensmith), jhb (PCI maintainer hat)
|
| 172317 |
25-Sep-2007 |
alc |
Change the management of cached pages (PQ_CACHE) in two fundamental
ways:
(1) Cached pages are no longer kept in the object's resident page
splay tree and memq. Instead, they are kept in a separate per-object
splay tree of cached pages. However, access to this new per-object
splay tree is synchronized by the _free_ page queues lock, not to be
confused with the heavily contended page queues lock. Consequently, a
cached page can be reclaimed by vm_page_alloc(9) without acquiring the
object's lock or the page queues lock.
This solves a problem independently reported by tegge@ and Isilon.
Specifically, they observed the page daemon consuming a great deal of
CPU time because of pages bouncing back and forth between the cache
queue (PQ_CACHE) and the inactive queue (PQ_INACTIVE). The source of
this problem turned out to be a deadlock avoidance strategy employed
when selecting a cached page to reclaim in vm_page_select_cache().
However, the root cause was really that reclaiming a cached page
required the acquisition of an object lock while the page queues lock
was already held. Thus, this change addresses the problem at its
root, by eliminating the need to acquire the object's lock.
Moreover, keeping cached pages in the object's primary splay tree and
memq was, in effect, optimizing for the uncommon case. Cached pages
are reclaimed far, far more often than they are reactivated. Instead,
this change makes reclamation cheaper, especially in terms of
synchronization overhead, and reactivation more expensive, because
reactivated pages will have to be reentered into the object's primary
splay tree and memq.
(2) Cached pages are now stored alongside free pages in the physical
memory allocator's buddy queues, increasing the likelihood that large
allocations of contiguous physical memory (i.e., superpages) will
succeed.
Finally, as a result of this change long-standing restrictions on when
and where a cached page can be reclaimed and returned by
vm_page_alloc(9) are eliminated. Specifically, calls to
vm_page_alloc(9) specifying VM_ALLOC_INTERRUPT can now reclaim and
return a formerly cached page. Consequently, a call to malloc(9)
specifying M_NOWAIT is less likely to fail.
Discussed with: many over the course of the summer, including jeff@,
Justin Husted @ Isilon, peter@, tegge@
Tested by: an earlier version by kris@
Approved by: re (kensmith)
|
| 172256 |
20-Sep-2007 |
attilio |
Fix some entries in the locks static table of witness.
In particular:
- smp_tlb_mtx is no longer used, so it is axed.
- smp rendezvous lock isn't really a leaf spin-mutex. Its bad placement in
the table, however, has been the source of a false positive LOR reporting
with the dt_lock. However, smp rendezvous lock would have had sched_lock
there for older lock, so it wasn't still a leaf lock.
- allpmaps is only used in ia32 architecture, so it is inserted in the
appropriate stub.
Addictionally:
- kse_zombie_lock is no longer present, so its definition is axed out.
- zombie_lock doesn't need to have an exported symbol, so just let's it be
declared as static.
Tested by: kris
Approved by: jeff (mentor)
Approved by: re
|
| 171914 |
22-Aug-2007 |
jkoshy |
Define an END() macro for use in i386 and amd64 assembly code, akin
to the one available on the ia64, sparc64, and sun4v architectures.
Approved by: re (kensmith)
|
| 171854 |
15-Aug-2007 |
des |
Add a driver for the on-die digital thermal sensor found on Intel Core
and newer CPUs (including Core 2 and Core / Core 2 based Xeons). The
driver attaches to each cpu device and creates a sysctl node in that
device's sysctl context (dev.cpu.N.temperature). When invoked, the
handler binds to the appropriate CPU to ensure a correct reading.
Submitted by: Rui Paulo <rpaulo@fnop.net>
Sponsored by: Google Summer of Code 2007
Tested by: des, marcus, Constantine A. Murenin, Ian FREISLICH
Approved by: re (kensmith)
MFC after: 3 weeks
|
| 171797 |
09-Aug-2007 |
njl |
Add "show sysregs" command to ddb. On i386, this gives gdt, idt, ldt,
cr0-4, etc. Support should be added for other platforms that have a
different set of registers for system use.
Loosely based on: OpenBSD
Approved by: re
|
| 171382 |
11-Jul-2007 |
mjacob |
Remove the internal use of __packed and put it on the structures
themselves.
Reviewed by: nate, peter, warner, robert
Approved by: re (ken)
|
| 171273 |
06-Jul-2007 |
bz |
I4B header files were repo-copied from sys/i386/include/ to
sys/i4b/include/ so they will be available to all architectures
once I4B compiles on those.
Approved by: re (kensmith)
|
| 171241 |
05-Jul-2007 |
peter |
__packed has no effect on u_int8_t's except to cause a warning (and
never has had any effect).
Approved by: re (rwatson)
|
| 170473 |
09-Jun-2007 |
marcel |
Add kdb_cpu_sync_icache(), intended to synchronize instruction
caches with data caches after writing to memory. This typically
is required to make breakpoints work on ia64 and powerpc. For
those architectures the function is implemented.
|
| 170319 |
05-Jun-2007 |
alc |
Add the machine-specific definitions for configuring the new physical
memory allocator.
Set the size of phys_avail[] and dump_avail[] using one of these
definitions.
Approved by: re
|
| 170291 |
04-Jun-2007 |
attilio |
Rework the PCPU_* (MD) interface:
- Rename PCPU_LAZY_INC into PCPU_INC
- Add the PCPU_ADD interface which just does an add on the pcpu member
given a specific value.
Note that for most architectures PCPU_INC and PCPU_ADD are not safe.
This is a point that needs some discussions/work in the next days.
Reviewed by: alc, bde
Approved by: jeff (mentor)
|
| 170150 |
31-May-2007 |
des |
Add CPUID2_PDCM
Requested by: jkim
MFC after: 3 days
|
| 170033 |
27-May-2007 |
alc |
Eliminate an unused definition.
|
| 169802 |
20-May-2007 |
jeff |
- Move GDT/LDT locking into a seperate spinlock, removing the global
scheduler lock from this responsibility.
Contributed by: Attilio Rao <attilio@FreeBSD.org>
Tested by: jeff, kkenn
|
| 169730 |
19-May-2007 |
kan |
Include machine/pcb.hto turn extern struct pcb stoppcbs[]; construct
into the valid C.
|
| 169395 |
08-May-2007 |
jhb |
Handle CPUs with APIC IDs higher than 32 (at least one IBM server uses
an APIC ID of 38 for its second CPU):
- Add a new MAX_APIC_ID constant for the highest valid APIC ID for modern
systems.
- Size the various arrays in the MADT, MP Table, and SMP code that are
indexed by APIC IDs to allow for up to MAX_APIC_ID.
- Explicitly go through and assign logical cpu ids to local APICs before
starting any of the APs up rather than doing it while starting up the
APs. This step is now where we honor MAXCPU.
MFC after: 1 week
|
| 169391 |
08-May-2007 |
jhb |
Minor fixes and tweaks to the x86 interrupt code:
- Split the intr_table_lock into an sx lock used for most things, and a
spin lock to protect intrcnt_index. Originally I had this as a spin lock
so interrupt code could use it to lookup sources. However, we don't
actually do that because it would add a lot of overhead to interrupts,
and if we ever do support removing interrupt sources, we can use other
means to safely do so w/o locking in the interrupt handling code.
- Replace is_enabled (boolean) with is_handlers (a count of handlers) to
determine if a source is enabled or not. This allows us to notice when
a source is no longer in use. When that happens, we now invoke a new
PIC method (pic_disable_intr()) to inform the PIC driver that the
source is no longer in use. The I/O APIC driver frees the APIC IDT
vector when this happens. The MSI driver no longer needs to have a
hack to clear is_enabled during msi_alloc() and msix_alloc() as a result
of this change as well.
- Add an apic_disable_vector() to reset an IDT vector back to Xrsvd to
complement apic_enable_vector() and use it in the I/O APIC and MSI code
when freeing an IDT vector.
- Add a new nexus hook: nexus_add_irq() to ask the nexus driver to add an
IRQ to its irq_rman. The MSI code uses this when it creates new
interrupt sources to let the nexus know about newly valid IRQs.
Previously the msi_alloc() and msix_alloc() passed some extra stuff
back to the nexus methods which then added the IRQs. This approach is
a bit cleaner.
- Change the MSI sx lock to a mutex. If we need to create new sources,
drop the lock, create the required number of sources, then get the lock
and try the allocation again.
|
| 169291 |
05-May-2007 |
alc |
Define every architecture as either VM_PHYSSEG_DENSE or
VM_PHYSSEG_SPARSE depending on whether the physical address space is
densely or sparsely populated with memory. The effect of this
definition is to determine which of two implementations of
vm_page_array and PHYS_TO_VM_PAGE() is used. The legacy
implementation is obtained by defining VM_PHYSSEG_DENSE, and a new
implementation that trades off time for space is obtained by defining
VM_PHYSSEG_SPARSE. For now, all architectures except for ia64 and
sparc64 define VM_PHYSSEG_DENSE. Defining VM_PHYSSEG_SPARSE on ia64
allows the entirety of my Itanium 2's memory to be used. Previously,
only the first 1 GB could be used. Defining VM_PHYSSEG_SPARSE on
sparc64 allows USIIIi-based systems to boot without crashing.
This change is a combination of Nathan Whitehorn's patch and my own
work in perforce.
Discussed with: kmacy, marius, Nathan Whitehorn
PR: 112194
|
| 169221 |
02-May-2007 |
jhb |
Revamp the MSI/MSI-X code a bit to achieve two main goals:
- Simplify the amount of work that has be done for each architecture by
pushing more of the truly MI code down into the PCI bus driver.
- Don't bind MSI-X indicies to IRQs so that we can allow a driver to map
multiple MSI-X messages into a single IRQ when handling a message
shortage.
The changes include:
- Add a new pcib_if method: PCIB_MAP_MSI() which is called by the PCI bus
to calculate the address and data values for a given MSI/MSI-X IRQ.
The x86 nexus drivers map this into a call to a new 'msi_map()' function
in msi.c that does the mapping.
- Retire the pcib_if method PCIB_REMAP_MSIX() and remove the 'index'
parameter from PCIB_ALLOC_MSIX(). MD code no longer has any knowledge
of the MSI-X index for a given MSI-X IRQ.
- The PCI bus driver now stores more MSI-X state in a child's ivars.
Specifically, it now stores an array of IRQs (called "message vectors" in
the code) that have associated address and data values, and a small
virtual version of the MSI-X table that specifies the message vector
that a given MSI-X table entry uses. Sparse mappings are permitted in
the virtual table.
- The PCI bus driver now configures the MSI and MSI-X address/data
registers directly via custom bus_setup_intr() and bus_teardown_intr()
methods. pci_setup_intr() invokes PCIB_MAP_MSI() to determine the
address and data values for a given message as needed. The MD code
no longer has to call back down into the PCI bus code to set these
values from the nexus' bus_setup_intr() handler.
- The PCI bus code provides a callout (pci_remap_msi_irq()) that the MD
code can call to force the PCI bus to re-invoke PCIB_MAP_MSI() to get
new values of the address and data fields for a given IRQ. The x86
MSI code uses this when an MSI IRQ is moved to a different CPU, requiring
a new value of the 'address' field.
- The x86 MSI psuedo-driver loses a lot of code, and in fact the separate
MSI/MSI-X pseudo-PICs are collapsed down into a single MSI PIC driver
since the only remaining diff between the two is a substring in a
bootverbose printf.
- The PCI bus driver will now restore MSI-X state (including programming
entries in the MSI-X table) on device resume.
- The interface for pci_remap_msix() has changed. Instead of accepting
indices for the allocated vectors, it accepts a mini-virtual table
(with a new length parameter). This table is an array of u_ints, where
each value specifies which allocated message vector to use for the
corresponding MSI-X message. A vector of 0 forces a message to not
have an associated IRQ. The device may choose to only use some of the
IRQs assigned, in which case the unused IRQs must be at the "end" and
will be released back to the system. This allows a driver to use the
same remap table for different shortage values. For example, if a driver
wants 4 messages, it can use the same remap table (which only uses the
first two messages) for the cases when it only gets 2 or 3 messages and
in the latter case the PCI bus will release the 3rd IRQ back to the
system.
MFC after: 1 month
|
| 168920 |
21-Apr-2007 |
sepotvin |
Add support for specifying a minimal size for vm.kmem_size in the loader via
vm.kmem_size_min. Useful when using ZFS to make sure that vm.kmem size will
be at least 256mb (for example) without forcing a particular value via vm.kmem_size.
Approved by: njl (mentor)
Reviewed by: alc
|
| 168668 |
12-Apr-2007 |
alc |
MFamd64
Define PGEX_RSV.
|
| 168439 |
06-Apr-2007 |
ru |
Add the PG_NX support for i386/PAE.
Reviewed by: alc
|
| 167814 |
22-Mar-2007 |
jkim |
Catch up with ACPI-CA 20070320 import.
|
| 167747 |
20-Mar-2007 |
jhb |
Add a new apic0 psuedo-device to claim memory resources for the memory
address ranges used by local and I/O APICs in the system. Some systems
also reserve these ranges as system resources via either PnPBIOS or
ACPI, so this device currently attaches after acpi0 and legacy0 so that
the system resources are given precedence.
|
| 167744 |
20-Mar-2007 |
jkim |
- Add macros for newly added CPUID bits in the corresponding header files.
- Use correct capticalization in xTPR as Intel uses in their documents.
- Use proper description instead of vendor code name in comment.
|
| 167668 |
17-Mar-2007 |
alc |
Eliminate an unused parameter.
|
| 167493 |
12-Mar-2007 |
jkim |
Add another CPUID for AMD CPUs and fix style(9) while I am here.
|
| 167429 |
11-Mar-2007 |
alc |
Push down the implementation of PCPU_LAZY_INC() into the machine-dependent
header file. Reimplement PCPU_LAZY_INC() on amd64 and i386 making it
atomic with respect to interrupts.
Reviewed by: bde, jhb
|
| 167273 |
06-Mar-2007 |
jhb |
Change the x86 interrupt code to use FreeBSD CPU IDs (i.e. PCPU_GET(cpuid))
rather than local APIC IDs to keep track of CPUs which can handle
interrupts.
|
| 167247 |
05-Mar-2007 |
jhb |
Use vm_paddr_t rather than uintptr_t when passing the physical address of
APICs to lapic_init() and ioapic_create().
|
| 166901 |
23-Feb-2007 |
piso |
o break newbus api: add a new argument of type driver_filter_t to
bus_setup_intr()
o add an int return code to all fast handlers
o retire INTR_FAST/IH_FAST
For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current
Reviewed by: many
Approved by: re@
|
| 166540 |
06-Feb-2007 |
bde |
Fixed some style bugs. Routine except:
- don't use __GNUCLIKE___OFFSETOF, since __offsetof() is a standard
FreeBSD implementaion detail which has nothing to do with GNUC.
|
| 166536 |
06-Feb-2007 |
bde |
Simplified PCPU_GET() and PCPU_SET(). We must copy through a temporary
variable to avoid invalid constraints in dead code. Use an array of
u_char's (inside a struct) instead of a char/short/int/long variable so
that the variable and its accesses can be spelled in the same way in all
cases and code doesn't need to be cloned just to hold the spelling
differences.
Fixed strict-aliasing errors in PCPU_SET() and in the amd64 PCPU_GET().
Cast to (void *) as in rev.1.37 of the i386 version where the errors
were fixed for the i386 PCPU_GET() only. It would be more correct to
copy to and from the temp. variable using memcpy(), but then an
ifdef tangle would be required to ensure using the builtin memcpy().
We depend on fairly aggressive optimization to put the temp. variable
only in a register despite it being copied using
*(type *)(void *)&anothertype and could depend on this when using
memcpy() too. This seems to work right even for -O0, but the -O0 case
has not been completely tested.
This change gives identical object code for all object files in LINT
on amd64 (except for one file with a __TIME__ stamp). For LINT on
i386 it gives unimportant differences in instruction order and padding
in a few object files. This was only tested for -O.
This change (actually a previous version of it) gives the following
reductions in the number of object files in LINT that fail to compile
with -O2 but without the -fno-strict-aliasing kludge:
- amd64: 29 (down from 211)
- i386: 36 (down from 47)
gcc-3.4.6 actually allows the invalid constraints that result from not
using the temp. variable, at least with -O[1-2], but gcc-3.3.3 crashes
on them and I don't want to depend on compiler bugs.
|
| 166186 |
23-Jan-2007 |
bde |
Cleaned up declaration and initialization of clock_lock. It is only
used by clock code, so don't export it to the world for machdep.c to
initialize. There is a minor problem initializing it before it is
used, since although clock initialization is split up so that parts
of it can be done early, the first part was never done early enough
to actually work. Split it up a bit more and do the first part as
late as possible to document the necessary order. The functions that
implement the split are still bogusly exported.
Cleaned up initialization of the i8254 clock hardware using the new
split. Actually initialize it early enough, and don't work around it
not being initialized in DELAY() when DELAY() is called early for
initialization of some console drivers.
This unfortunately moves a little more code before the early debugger
breakpoint so that it is harder to debug. The ordering of console and
related initialization is delicate because we want to do as little as
possible before the breakpoint, but must initialize a console.
|
| 166176 |
22-Jan-2007 |
jhb |
Expand the MSI/MSI-X API to address some deficiencies in the MSI-X support.
- First off, device drivers really do need to know if they are allocating
MSI or MSI-X messages. MSI requires allocating powerof2() messages for
example where MSI-X does not. To address this, split out the MSI-X
support from pci_msi_count() and pci_alloc_msi() into new driver-visible
functions pci_msix_count() and pci_alloc_msix(). As a result,
pci_msi_count() now just returns a count of the max supported MSI
messages for the device, and pci_alloc_msi() only tries to allocate MSI
messages. To get a count of the max supported MSI-X messages, use
pci_msix_count(). To allocate MSI-X messages, use pci_alloc_msix().
pci_release_msi() still handles both MSI and MSI-X messages, however.
As a result of this change, drivers using the existing API will only
use MSI messages and will no longer try to use MSI-X messages.
- Because MSI-X allows for each message to have its own data and address
values (and thus does not require all of the messages to have their
MD vectors allocated as a group), some devices allow for "sparse" use
of MSI-X message slots. For example, if a device supports 8 messages
but the OS is only able to allocate 2 messages, the device may make the
best use of 2 IRQs if it enables the messages at slots 1 and 4 rather
than default of using the first N slots (or indicies) at 1 and 2. To
support this, add a new pci_remap_msix() function that a driver may call
after a successful pci_alloc_msix() (but before allocating any of the
SYS_RES_IRQ resources) to allow the allocated IRQ resources to be
assigned to different message indices. For example, from the earlier
example, after pci_alloc_msix() returned a value of 2, the driver would
call pci_remap_msix() passing in array of integers { 1, 4 } as the
new message indices to use. The rid's for the SYS_RES_IRQ resources
will always match the message indices. Thus, after the call to
pci_remap_msix() the driver would be able to access the first message
in slot 1 at SYS_RES_IRQ rid 1, and the second message at slot 4 at
SYS_RES_IRQ rid 4. Note that the message slots/indices are 1-based
rather than 0-based so that they will always correspond to the rid
values (SYS_RES_IRQ rid 0 is reserved for the legacy INTx interrupt).
To support this API, a new PCIB_REMAP_MSIX() method was added to the
pcib interface to change the message index for a single IRQ.
Tested by: scottl
|
| 165967 |
12-Jan-2007 |
imp |
Remove 3rd clause, renumber, ok per email
|
| 165918 |
09-Jan-2007 |
jkim |
Add SSSE3 extensions and correct CNXT-ID spelling for Intel processors.
|
| 165636 |
29-Dec-2006 |
bde |
Fix oops in previous commit.
|
| 165635 |
29-Dec-2006 |
bde |
Fixed some style bugs (mainly assorted errors in comments, and inconsistent
spelling of `result').
|
| 165633 |
29-Dec-2006 |
bde |
Fixed some style bugs (whitespace only).
|
| 165630 |
29-Dec-2006 |
bde |
Try harder to garbage-collect the "LOCORE" (really asm) version of
MPLOCKED. The cleaning in rev.1.25 was supposed to have been undone
by rev.1.26, but 1.26 could never have actually affected asm files
since atomic.h is full of C declarations so including it in asm files
would just give syntax errors. The asm MPLOCKED is even less needed
than when misplaced definitions of it were first removed, and is now
unused in any asm file in the src tree except in anachronismns in
sys/i386/i386/support.s.
|
| 165572 |
27-Dec-2006 |
bde |
Avoid an instruction in atomic_cmpset_{int_long)() in most cases.
These functions are used a lot for mutexes, so this reduces the text
size of an average kernel by about 0.75%. This wasn't intended to
be a significant optimization, but it somehow increased the maximum
number of packets per second that can be transmitted by my bge hardware
from 320000 to 460000 (this benchmark is CPU-bound and remarkably
sensitive to changes in the text section).
Details: we would prefer to leave the result of the cmpxchg in %al,
but cannot tell gcc that it is there, so we have to convert it to an
integer register. We converted to %al, then to %[re]ax, but the
latter step is usually wasted since gcc usually only wants the condition
code and can recover it from %al just as easily as from %[re]ax. Let
gcc promote %al in the few cases where this is needed.
Nearby style fixes;
- let gcc manage the load of `res', and don't abuse `res' for a copy of `exp'
- don't echo `res's name in comments
- consistently spell the condition code as 'e' after comparison for equality
- don't hard-code %al anywhere except in constraints
- for the version that doesn't use cmpxchg, there is no requirement to use
%al anywhere, so don't hard-code it in the constraints either.
Style non-fix:
- for the versions that use cmpxchg, keep using "a" (was %[re]ax, now %al)
for the main output operand, although this is not required. The input
and output operands that use the "a" constraint are now decoupled, and
this makes things clearer except for the reason that the output register
is hard-coded. It is now just a hack to tell gcc that the input "a" has
been clobbered without increasing the number of operands.
|
| 165302 |
17-Dec-2006 |
kmacy |
Evidently FreeBSD has long relied on the compiler to treat structures
passed by value (trap frames) as if they were in fact being passed by
reference. For better or worse, this incorrect behaviour is no longer
present in gcc 4.1. In this patch I convert all trapframe arguments to
be explicitly pass by reference. I also remove vm86_initflags, pushing
the very little work that it actually does up into vm86_prepcall.
Reviewed by: kan
Tested by: kan
|
| 165127 |
12-Dec-2006 |
jhb |
Sort function prototypes.
|
| 164413 |
19-Nov-2006 |
alc |
The global variable avail_end is redundant and only used once. Eliminate
it. Make avail_start static to the pmap on amd64. (It no longer exists
on other architectures.)
|
| 164362 |
17-Nov-2006 |
jhb |
- Add macro constants for the various fields in %dr7 and use them in place
of various scattered magic values.
- Pretty print the address of hardware watchpoints in 'show watch' rather
than just displaying hex.
- Expand address field width on amd64 for 64-bit pointers.
|
| 164303 |
15-Nov-2006 |
jhb |
Various whitespace and style fixes.
|
| 164265 |
13-Nov-2006 |
jhb |
MD support for PCI Message Signalled Interrupts on amd64 and i386:
- Add a new apic_alloc_vectors() method to the local APIC support code
to allocate N contiguous IDT vectors (aligned on a M >= N boundary).
This function is used to allocate IDT vectors for a group of MSI
messages.
- Add MSI and MSI-X PICs. The PIC code here provides methods to manage
edge-triggered MSI messages as x86 interrupt sources. In addition to
the PIC methods, msi.c also includes methods to allocate and release
MSI and MSI-X messages. For x86, we allow for up to 128 different
MSI IRQs starting at IRQ 256 (IRQs 0-15 are reserved for ISA IRQs,
16-254 for APIC PCI IRQs, and IRQ 255 is reserved).
- Add pcib_(alloc|release)_msi[x]() methods to the MD x86 PCI bridge
drivers to bubble the request up to the nexus driver.
- Add pcib_(alloc|release)_msi[x]() methods to the x86 nexus drivers that
ask the MSI PIC code to allocate resources and IDT vectors.
MFC after: 2 months
|
| 164262 |
13-Nov-2006 |
ru |
Fix NKPT comments to match reality. Note that the current value
of NKPT is no longer enough to run amd64 with 16G of RAM, as it
doesn't have space for mapping a kernel (16M kernel would require
additionally 8 page tables).
|
| 164250 |
13-Nov-2006 |
ru |
Fix a comment.
|
| 163735 |
28-Oct-2006 |
bde |
i386/include/profile.h:
Fixed a syntax error for the (!__KERNEL && !__GNUCLIKE_ASM) case in
rev.1.36. Apparently, this case has never been reached even by lint.
Submitted by: stefanf
{amd64,i386}/include/profile.h:
In case the above case is actually reached, break it properly by
providing null support that will fail at link time instead of a stub
that gives wrong (null) profiling at runtime.
|
| 163729 |
28-Oct-2006 |
bde |
In MCOUNT_OVERHEAD(label), actually use the `label' parameter. We were
still using the global label named "profil", and this worked accidentally
because all callers use the same name.
|
| 163726 |
28-Oct-2006 |
bde |
Removed all traces of HIDENAME() in amd64 and i386 kernel code. Using
this used to be slightly cleaner than using ifdefs in a few places to
support both a.out and elf, but using it now just causes messes and
unportabilities. It seems to be impossible to implement the elf
HIDENAME() portably in cpp (since token pasting of "." and <name> is
invalid).
*/prof_machdep.c:
- Removed all uses of CNAME(). CNAME() is easy enough to use in pure
asm code, but using it in inline asm requires messy quoting. The
core pure asm code has been hacked on more and all uses of CNAME() in
it have already gone away. Just assume the elf convention here too.
- Removed now-uneeded include of <machine/asmacros.h>.
- Removed the workaround for a namespace conflict with this include.
|
| 163722 |
27-Oct-2006 |
bde |
Don't call mexitcount or provide a stub mexitcount to call when
profiling is configured but high resolution profiling is not configured.
Only functions in *.[Ss] called the stub, so efficiency was not
significantly affected.
|
| 163219 |
10-Oct-2006 |
jhb |
Change the x86 interrupt code to suspend/resume interrupt controllers
(PICs) rather than interrupt sources. This allows interrupt controllers
with no interrupt pics (such as the 8259As when APIC is in use) to
participate in suspend/resume.
- Always register the 8259A PICs even if we don't use any of their pins.
- Explicitly reset the 8259As on resume on amd64 if 'device atpic' isn't
included.
- Add a "dummy" PIC for the local APIC on the BSP to reset the local APIC
on resume. This gets suspend/resume working with APIC on UP systems.
SMP still needs more work to bring the APs back to life.
The MFC after is tentative.
Tested by: anholt (i386)
Submitted by: Andrea Bittau <a.bittau at cs.ucl.ac.uk> (3)
MFC after: 1 week
|
| 163212 |
10-Oct-2006 |
jhb |
Oops, fix sign bug in #ifdef for value of INTRCNT_COUNT.
PR: kern/99870
Submitted by: jkim
MFC after: 3 days
|
| 163016 |
04-Oct-2006 |
jb |
PR:
Submitted by:
Reviewed by:
Approved by:
Obtained from:
MFC after:
Security:
Move the relocation definitions to the common elf header so that DTrace
can use them on one architecture targeted to a different one.
Add the additional ELF types defines in Sun's "Linker and Libraries"
manual.
|
| 162954 |
02-Oct-2006 |
phk |
First part of a little cleanup in the calendar/timezone/RTC handling.
Move relevant variables to <sys/clock.h> and fix #includes as necessary.
Use libkern's much more time- & spamce-efficient BCD routines.
|
| 162487 |
21-Sep-2006 |
kan |
Use __builtin_va_start instead of __builtin_stdarg_start. GCC4 obsoletes
the former and __builtin_va_start was present in all GCC version 3.1 and
later.
|
| 161223 |
11-Aug-2006 |
jhb |
First pass at allowing memory to be mapped using cache modes other than
WB (write-back) on x86 via control bits in PTEs and PDEs (including making
use of the PAT MSR). Changes include:
- A new pmap_mapdev_attr() function for amd64 and i386 which takes an
additional parameter (relative to pmap_mapdev()) specifying the cache
mode for this mapping. Note that on amd64 only WB mappings are done with
the direct map, all other modes result in a private mapping.
- pmap_mapdev() on i386 and amd64 now defaults to using UC (uncached)
mappings rather than WB. Previously we relied on the BIOS setting up
MTRR's to enforce memio regions being treated as UC. This might make
hw.cbb_start_memory unnecessary in some cases now for example.
- A new pmap_mapbios()/pmap_unmapbios() API has been added to allow places
that used pmap_mapdev() to map non-device memory (such as ACPI tables)
to do so using WB as before.
- A new pmap_change_attr() function for amd64 and i386 that changes the
caching mode for a range of KVA.
Reviewed by: alc
|
| 160329 |
13-Jul-2006 |
jkim |
Sync specialreg.h changes between amd64 and i386 with few fixes.
|
| 160309 |
12-Jul-2006 |
mr |
Initialise (if necessary) the VIA C3/C7 features.
Store the capabilities for further use by random(4), padlock(4), ...
Obtained from: mostly OpenBSD
MFC after: 1 week
|
| 160305 |
12-Jul-2006 |
mr |
fix typo in identcpu.c and add one define to specialreg.h.
MFC after: 1 week
|
| 160298 |
12-Jul-2006 |
mr |
First step to identify and initialize the newer VIA C7 CPU
as found in a VIA EPIA EN-15000 board.
Obtained from: large parts from OpenBSD
|
| 160286 |
12-Jul-2006 |
jkim |
Add two new CPUID bits for AMD CPUs, i. e., SVM and extended APIC register.
|
| 160216 |
09-Jul-2006 |
twinterg |
Extend i4b to support CAPI manager based ISDN controllers (CAPI manager is part of
c4b, CAPI for BSD). This is a preparation to add CAPI for BSD to the source tree.
Approved by: hm (mentor)
MFC after: 2 weeks
|
| 159768 |
19-Jun-2006 |
davidxu |
Style fix, use low-case.
|
| 159763 |
19-Jun-2006 |
davidxu |
Clear bit 22 in MSR IA32_MISC_ENABLE, according to Intel document,
when the bit 22 is set to 1, CPUID with EAX=0 returns a maximum
value in EAX[7..0] of 3, when set to 0(default), CPUID with EAX=0
returns the number corresponding to the maximum standard function
supported. On my machine, BIOS sets the bit to 1 to make it to be
compatible with old OS, this causes dual-core Pentium-D (two
physical cores) to be identified as hyperthreading (two logical
cores) by function mp_topology().
|
| 159087 |
30-May-2006 |
davidxu |
Use the method described in IA-32 Intel Architecture Software Developer's
Manual chapter 11.6.6 to get valid mxcsr bits, use the mxcsr mask to clear
invalid bits passed by user code.
Reviewed by: bde
|
| 159027 |
29-May-2006 |
davidxu |
Backout changes trying to inherit floating-point environment, although
POSIX (susv3) requires this, but it is unclear what should be inherited,
duplicating whole 387 stack for new thread seems to be unnecessary and
dangerous. Revert to previous code, force a new thread to be started with
clean FP state.
|
| 158995 |
28-May-2006 |
davidxu |
When creating a new thread, inherit floating-point environment from
current thread, this is required by POSIX pthread_create document.
|
| 158748 |
19-May-2006 |
sobomax |
Move clock_lock prototype into <machine/clock.h>, where it is more
appropriate.
Discussed with: jhb
|
| 158687 |
17-May-2006 |
phk |
Send the pcvt(4) driver off to retirement.
|
| 158502 |
12-May-2006 |
peter |
Test commit after repoman upgrade. Remove one of my many email addresses
from a copyright message.
|
| 158501 |
12-May-2006 |
peter |
Test commit after repoman upgrade. Remove one of my many email addresses
from a coyright message.
|
| 158445 |
11-May-2006 |
phk |
Clean out sysctl machdep.* related defines.
The cmos clock related stuff should really be in MI code.
|
| 158238 |
01-May-2006 |
jhb |
Add various constants for the PAT MSR and the PAT PTE and PDE flags.
Initialize the PAT MSR during boot to map PAT type 2 to Write-Combining
(WC) instead of Uncached (UC-).
MFC after: 1 month
|
| 158236 |
01-May-2006 |
jhb |
Add a new 'pmap_invalidate_cache()' to flush the CPU caches via the
wbinvd() instruction. This includes a new IPI so that all CPU caches on
all CPUs are flushed for the SMP case.
MFC after: 1 month
|
| 158060 |
26-Apr-2006 |
peter |
MFamd64: shrink pv entries from 24 bytes to about 12 bytes. (336 pv entries
per page = effectively 12.19 bytes per pv entry after overheads).
Instead of using a shared UMA zone for 24 byte pv entries (two 8-byte tailq
nodes, a 4 byte pointer, and a 4 byte address), we allocate a page at a
time per process. This provides 336 pv entries per process (actually, per
pmap address space) and eliminates one of the 8-byte tailq entries since
we now can track per-process pv entries implicitly. The pointer to
the pmap can be eliminated by doing address arithmetic to find the metadata
on the page headers to find a single pointer shared by all 336 entries.
There is an 11-int bitmap for the freelist of those 336 entries.
This is mostly a mechanical conversion from amd64, except:
* i386 has to allocate kvm and map the pages, amd64 has them outside of kvm
* native word size is smaller, so bitmaps etc become 32 bit instead of 64
* no dump_add_page() etc stuff because they are in kvm always.
* various pmap internals tweaks because pmap uses direct map on amd64 but
on i386 it has to use sched_pin and temporary mappings.
Also, sysctl vm.pmap.pv_entry_max and vm.pmap.shpgperproc are now
dynamic sysctls. Like on amd64, i386 can now tune the pv entry limits
without a recompile or reboot.
This is important because of the following scenario. If you have a 1GB
file (262144 pages) mmap()ed into 50 processes, that requires 13 million
pv entries. At 24 bytes per pv entry, that is 314MB of ram and kvm, while
at 12 bytes it is 157MB. A 157MB saving is significant.
Test-run by: scottl (Thanks!)
|
| 157909 |
21-Apr-2006 |
peter |
Merge minidumps from amd64 where they were originally developed.
Major differences:
* since there is no direct map region, there is no custom uma memory
allocator to modify to include its pages in the dumps.
* Various data entries are reduced from 64 bit to 32 bit to match the
native size.
dump_add_page() and dump_drop_page() are still present in case one wants to
arrange for arbitary pages to be dumped. This is of marginal use though
because libkvm+kgdb cannot address physical memory that isn't mapped into
kvm.
|
| 157448 |
03-Apr-2006 |
marcel |
Eliminate HAVE_STOPPEDPCBS. On ia64 the PCPU holds a pointer to the
PCB in which the context of stopped CPUs is stored. To access this
PCB from KDB, we introduce a new define, called KDB_STOPPEDPCB. The
definition, when present, lives in <machine/kdb.h> and abstracts
where MD code saves the context. Define KDB_STOPPEDPCB on i386,
amd64, alpha and sparc64 in accordance to previous code.
|
| 157212 |
28-Mar-2006 |
des |
Use wrapper macros for atomic pointer operations in order to perform the
correct casts. This should probably be merged to other architectures.
|
| 156243 |
03-Mar-2006 |
rink |
Committed the xbox syscons(8)-able console driver.
Reviewed by: arch@ (no comments)
Approved by: imp (mentor)
|
| 156124 |
28-Feb-2006 |
jhb |
Rework how we wire up interrupt sources to CPUs:
- Throw out all of the logical APIC ID stuff. The Intel docs are somewhat
ambiguous, but it seems that the "flat" cluster model we are currently
using is only supported on Pentium and P6 family CPUs. The other
"hierarchy" cluster model that is supported on all Intel CPUs with
local APICs is severely underdocumented. For example, it's not clear
if the OS needs to glean the topology of the APIC hierarchy from
somewhere (neither ACPI nor MP Table include it) and setup the logical
clusters based on the physical hierarchy or not. Not only that, but on
certain Intel chipsets, even though there were 4 CPUs in a logical
cluster, all the interrupts were only sent to one CPU anyway.
- We now bind interrupts to individual CPUs using physical addressing via
the local APIC IDs. This code has also moved out of the ioapic PIC
driver and into the common interrupt source code so that it can be
shared with MSI interrupt sources since MSI is addressed to APICs the
same way that I/O APIC pins are.
- Interrupt source classes grow a new method pic_assign_cpu() to bind an
interrupt source to a specific local APIC ID.
- The SMP code now tells the interrupt code which CPUs are avaiable to
handle interrupts in a simpler and more intuitive manner. For one thing,
it means we could now choose to not route interrupts to HT cores if we
wanted to (this code is currently in place in fact, but under an #if 0
for now).
- For now we simply do static round-robin of IRQs to CPUs when the first
interrupt handler just as before, with the change that IRQs are now
bound to individual CPUs rather than groups of up to 4 CPUs.
- Because the IRQ to CPU mapping has now been moved up a layer, it would
be easier to manage this mapping from higher levels. For example, we
could allow drivers to specify a CPU affinity map for their interrupts,
or we could allow a userland tool to bind IRQs to specific CPUs.
The MFC is tentative, but I want to see if this fixes problems some folks
had with UP APIC kernels on 6.0 on SMP machines (an SMP kernel would work
fine, but a UP APIC kernel (such as GENERIC in RELENG_6) would lose
interrupts).
MFC after: 1 week
|
| 155926 |
22-Feb-2006 |
sam |
guard function decls with _KERNEL so user code can include this file
MFC after: 1 week
|
| 155510 |
10-Feb-2006 |
rink |
Cleaned the memory initialization up, moved some defines from the framebuffer
to an include file.
Reviewed by: imp
Approved by: imp (mentor)
|
| 155049 |
30-Jan-2006 |
rik |
Prepare for sconfig(8) update.
Change also my e-mail.
|
| 154128 |
09-Jan-2006 |
imp |
By popular demand, move __HAVE_ACPI and __PCI_REROUTE_INTERRUPT into
param.h. Per request, I've placed these just after the
_NO_NAMESPACE_POLLUTION ifndef. I've not renamed anything yet, but
may since we don't need the __.
Submitted by: bde, jhb, scottl, many others.
|
| 153955 |
01-Jan-2006 |
imp |
Define __HAVE_ACPI and/or __PCI_REROUTE_INTERRUPT, as appropriate for
each platform. These will be used in the pci code in preference to
the complicated #ifdefs we have there now.
|
| 153836 |
29-Dec-2005 |
davidxu |
Remove pcb_switchout, it has not been used for a long time.
|
| 153726 |
26-Dec-2005 |
davidxu |
Move global variable private_tss into per-cpu area.
Reviewed by: jhb
|
| 153666 |
22-Dec-2005 |
jhb |
Tweak how the MD code calls the fooclock() methods some. Instead of
passing a pointer to an opaque clockframe structure and requiring the
MD code to supply CLKF_FOO() macros to extract needed values out of the
opaque structure, just pass the needed values directly. In practice this
means passing the pair (usermode, pc) to hardclock() and profclock() and
passing the boolean (usermode) to hardclock_cpu() and hardclock_process().
Other details:
- Axe clockframe and CLKF_FOO() macros on all architectures. Basically,
all the archs were taking a trapframe and converting it into a clockframe
one way or another. Now they can just extract the PC and usermode values
directly out of the trapframe and pass it to fooclock().
- Renamed hardclock_process() to hardclock_cpu() as the latter is more
accurate.
- On Alpha, we now run profclock() at hz (profhz == hz) rather than at
the slower stathz.
- On Alpha, for the TurboLaser machines that don't have an 8254
timecounter, call hardclock() directly. This removes an extra
conditional check from every clock interrupt on Alpha on the BSP.
There is probably room for even further pruning here by changing Alpha
to use the simplified timecounter we use on x86 with the lapic timer
since we don't get interrupts from the 8254 on Alpha anyway.
- On x86, clkintr() shouldn't ever be called now unless using_lapic_timer
is false, so add a KASSERT() to that affect and remove a condition
to slightly optimize the non-lapic case.
- Change prototypeof arm_handler_execute() so that it's first arg is a
trapframe pointer rather than a void pointer for clarity.
- Use KCOUNT macro in profclock() to lookup the kernel profiling bucket.
Tested on: alpha, amd64, arm, i386, ia64, sparc64
Reviewed by: bde (mostly)
|
| 153179 |
06-Dec-2005 |
jhb |
- Cleanup whitespace and extra ()s in vtophys() macros.
- Move vtophys() macros next to vtopte() where vtopte() exists to match
comments above vtopte().
- Remove references to the alternate address space in the comment above
vtopte(). amd64 never had the alternate address space, and i386 lost it
prior to PAE support being added.
- s/entires/entries/ in comments.
Reviewed by: alc
|
| 153168 |
06-Dec-2005 |
ru |
Drop _MACHINE_ARCH and _MACHINE defines (not to be confused with
MACHINE_ARCH and MACHINE). Their purpose was to be able to test
in cpp(1), but cpp(1) only understands integer type expressions.
Using such unsupported expressions introduced a number of subtle
bugs, which were discovered by compiling with -Wundef.
|
| 153146 |
05-Dec-2005 |
jhb |
Change the i386 code to pass the interrupt vector as a separate argument
rather than embedding it in the intrframe as if_vec. This reduces diffs
with amd64 somewhat.
- Remove cf_vec from clockframe (it wasn't used anyway) and stop pushing
dummy vector arguments for ipi_bitmap_handler() and lapic_handle_timer()
since clockframe == trapframe now.
- Fix ddb to handle stack traces across interrupt entry points that just
have a trapframe on their stack and not a trapframe + vector.
- Change intr_execute_handlers() to take a trapframe rather than an
intrframe pointer.
- Change lapic_handle_intr() and atpic_handle_intr() to take a vector and
trapframe rather than an intrframe.
- GC struct intrframe now that nothing uses it anymore.
- GC CLOCK_TO_TRAPFRAME() and INTR_TO_TRAPFRAME().
Reviewed by: bde
Requested by: peter
|
| 153141 |
05-Dec-2005 |
jhb |
- Move the code to deal with handling an IPI_STOP IPI out of
ipi_nmi_handler() and into a new cpustop_handler() function. Change
the Xcpustop IPI_STOP handler to call this function instead of
duplicating all the same logic in assembly.
- EOI the local APIC for the lapic timer interrupt in C rather than
assembly.
- Bump the lazypmap IPI counter if COUNT_IPIS is defined in C rather than
assembly.
|
| 153135 |
05-Dec-2005 |
jhb |
- Move PUSH_FRAME and POP_FRAME into machine/asmacros.h.
- Add a new SET_KERNEL_SREGS macro that sets up %ds and %es to point to
kernel data and %fs to point to per-CPU data and use the new macro
in several kernel entry points including trap and interrupt handlers.
- Convert the IPI_STOP handler Xcpustop to push a standard trap frame
rather than an application frame.
- Make the TRAP() macro private to exception.s since it is only used
there.
- Move the PCPU_*() macros in asmacros.h out of the middle of the
profiling macros.
Reviewed by: bde
Requested by: bde (4, 5)
|
| 153110 |
05-Dec-2005 |
ru |
Fix -Wundef warnings found when compiling i386 LINT, GENERIC and
custom kernels.
|
| 152702 |
22-Nov-2005 |
jhb |
Garbage collect machine/smptests.h now that it is empty and no longer used.
|
| 152701 |
22-Nov-2005 |
jhb |
Make COUNT_IPIS and COUNT_XINVLTLB_HITS real kernel options and take
them out of machine/smptests.h.
|
| 152700 |
22-Nov-2005 |
jhb |
Garbage collect unused {VERBOSE_,}CPUSTOP_ON_DDBBREAK macros.
|
| 152699 |
22-Nov-2005 |
jhb |
Garbage collect the code to store diagnostics codes in a CMOS register
during SMP startup. We haven't had any issues with starting up the APs
on i386 in quite a while now which is all this code is really useful for.
If someone ever does really need it they can always dig it up out of the
attic.
|
| 152306 |
11-Nov-2005 |
ru |
Add /dev/speaker support to amd64.
The following repo-copies were made (by Mark Murray):
sys/i386/isa/spkr.c -> sys/dev/speaker/spkr.c
sys/i386/include/speaker.h -> sys/dev/speaker/speaker.h
share/man/man4/man4.i386/spkr.4 -> share/man/man4/spkr.4
|
| 152219 |
09-Nov-2005 |
imp |
Add support for XBOX to the FreeBSD port. The xbox architecture is
nearly identical to wintel/ia32, with a couple of tweaks. Since it is
so similar to ia32, it is optionally added to a i386 kernel. This
port is preliminary, but seems to work well. Further improvements
will improve the interaction with syscons(4), port Linux nforce driver
and future versions of the xbox.
This supports the 64MB and 128MB boxes. You'll need the most recent
CVS version of Cromwell (the Linux BIOS for the XBOX) to boot.
Rink will be maintaining this port, and is interested in feedback.
He's setup a website http://xbox-bsd.nl to report the latest
developments.
Any silly mistakes are my fault.
Submitted by: Rink P.W. Springer rink at stack dot nl and
Ed Schouten ed at fxq dot nl
|
| 151979 |
02-Nov-2005 |
jhb |
Change the x86 code to allocate IDT vectors on-demand when an interrupt
source is first enabled similar to how intr_event's now allocate ithreads
on-demand. Previously, we would map IDT vectors 1:1 to IRQs. Since we
only have 191 available IDT vectors for I/O interrupts, this limited us
to only supporting IRQs 0-190 corresponding to the first 190 I/O APIC
intpins. On many machines, however, each PCI-X bus has its own APIC even
though it only has 1 or 2 devices, thus, we were reserving between 24 and
32 IRQs just for 1 or 2 devices and thus 24 or 32 IDT vectors. With this
change, a machine with 100 IRQs but only 5 in use will only use up 5 IDT
vectors. Also, this change provides an API (apic_alloc_vector() and
apic_free_vector()) that will allow a future MSI interrupt source driver to
request IDT vectors for use by MSI interrupts on x86 machines.
Tested on: amd64, i386
|
| 151658 |
25-Oct-2005 |
jhb |
Reorganize the interrupt handling code a bit to make a few things cleaner
and increase flexibility to allow various different approaches to be tried
in the future.
- Split struct ithd up into two pieces. struct intr_event holds the list
of interrupt handlers associated with interrupt sources.
struct intr_thread contains the data relative to an interrupt thread.
Currently we still provide a 1:1 relationship of events to threads
with the exception that events only have an associated thread if there
is at least one threaded interrupt handler attached to the event. This
means that on x86 we no longer have 4 bazillion interrupt threads with
no handlers. It also means that interrupt events with only INTR_FAST
handlers no longer have an associated thread either.
- Renamed struct intrhand to struct intr_handler to follow the struct
intr_foo naming convention. This did require renaming the powerpc
MD struct intr_handler to struct ppc_intr_handler.
- INTR_FAST no longer implies INTR_EXCL on all architectures except for
powerpc. This means that multiple INTR_FAST handlers can attach to the
same interrupt and that INTR_FAST and non-INTR_FAST handlers can attach
to the same interrupt. Sharing INTR_FAST handlers may not always be
desirable, but having sio(4) and uhci(4) fight over an IRQ isn't fun
either. Drivers can always still use INTR_EXCL to ask for an interrupt
exclusively. The way this sharing works is that when an interrupt
comes in, all the INTR_FAST handlers are executed first, and if any
threaded handlers exist, the interrupt thread is scheduled afterwards.
This type of layout also makes it possible to investigate using interrupt
filters ala OS X where the filter determines whether or not its companion
threaded handler should run.
- Aside from the INTR_FAST changes above, the impact on MD interrupt code
is mostly just 's/ithread/intr_event/'.
- A new MI ddb command 'show intrs' walks the list of interrupt events
dumping their state. It also has a '/v' verbose switch which dumps
info about all of the handlers attached to each event.
- We currently don't destroy an interrupt thread when the last threaded
handler is removed because it would suck for things like ppbus(8)'s
braindead behavior. The code is present, though, it is just under
#if 0 for now.
- Move the code to actually execute the threaded handlers for an interrrupt
event into a separate function so that ithread_loop() becomes more
readable. Previously this code was all in the middle of ithread_loop()
and indented halfway across the screen.
- Made struct intr_thread private to kern_intr.c and replaced td_ithd
with a thread private flag TDP_ITHREAD.
- In statclock, check curthread against idlethread directly rather than
curthread's proc against idlethread's proc. (Not really related to intr
changes)
Tested on: alpha, amd64, i386, sparc64
Tested on: arm, ia64 (older version of patch by cognet and marcel)
|
| 151634 |
24-Oct-2005 |
jhb |
Rename the KDB_STOP_NMI kernel option to STOP_NMI and make it apply to all
IPI_STOP IPIs.
- Change the i386 and amd64 MD IPI code to send an NMI if STOP_NMI is
enabled if an attempt is made to send an IPI_STOP IPI. If the kernel
option is enabled, there is also a sysctl to change the behavior at
runtime (debug.stop_cpus_with_nmi which defaults to enabled). This
includes removing stop_cpus_nmi() and making ipi_nmi_selected() a
private function for i386 and amd64.
- Fix ipi_all(), ipi_all_but_self(), and ipi_self() on i386 and amd64 to
properly handle bitmapped IPIs as well as IPI_STOP IPIs when STOP_NMI is
enabled.
- Fix ipi_nmi_handler() to execute the restart function on the first CPU
that is restarted making use of atomic_readandclear() rather than
assuming that the BSP is always included in the set of restarted CPUs.
Also, the NMI handler didn't clear the function pointer meaning that
subsequent stop and restarts could execute the function again.
- Define a new macro HAVE_STOPPEDPCBS on i386 and amd64 to control the use
of stoppedpcbs[] and always enable it for i386 and amd64 instead of
being dependent on KDB_STOP_NMI. It works fine in both the NMI and
non-NMI cases.
|
| 151348 |
14-Oct-2005 |
jkim |
- Print number of physical/logical cores and more CPUID info.
- Add newer CPUID definitions for future use.
Many thanks to Mike Tancsa <mike at sentex dot net> for providing test
cases for Intel Pentium D and AMD Athlon 64 X2.
Approved by: anholt (mentor)
|
| 151306 |
14-Oct-2005 |
davidxu |
Add POSIX siginfo_t's si_code, this is for upcoming POSIX realtime signal
support in kernel.
Earlier patch reviewed by: jhb, deischen
|
| 150697 |
28-Sep-2005 |
jhb |
Add interrupt counters for IPIs. By default they are disabled, but they
can be enabled by enabling COUNT_IPIS in smptests.h. When enabled, each
CPU provides an interrupt counter for nearly all of the IPIs it receives
(IPI_STOP currently doesn't have a counter) that can be examined using
vmstat -i, etc.
MFC after: 3 days
Requested by: rwatson
|
| 150627 |
27-Sep-2005 |
jhb |
Add a new atomic_fetchadd() primitive that atomically adds a value to a
variable and returns the previous value of the variable.
Tested on: i386, alpha, sparc64, arm (cognet)
Reviewed by: arch@
Submitted by: cognet (arm)
MFC after: 1 week
|
| 150264 |
17-Sep-2005 |
imp |
Expose legacy_pcib_alloc_resource, and use it in the mptable pci bus
implementation, like other routines in the legacy bus.
This should fix problems with resource allocation on MP systems without
ACPI enabled.
|
| 150182 |
15-Sep-2005 |
jhb |
Stop using the '+' constraint modifier with inline assembly. The '+'
constraint is actually only allowed for register operands. Instead, use
separate input and output memory constraints.
Education from: alc
Reviewed by: alc
Tested on: i386, alpha
MFC after: 1 week
|
| 150173 |
15-Sep-2005 |
jhb |
Explicitly switch to the new TSS by updating the current CPU's TSS selector
and reloading it in i386_extend_pcb() rather than trying to force a context
switch to reload the TSS via the TDF_NEEDRESCHED flag. Optimizations to
avoid calling cpu_switch() when the new thread was identical to the old
thread defeated the attempt to force a TSS reload. Explicitly loading the
new TSS is what we really want to do anyway.
PR: i386/84842
Reported by: Alexander Best arundel at h3c dot de
MFC after: 1 week
Reviewed by: bde (mostly)
|
| 150013 |
12-Sep-2005 |
obrien |
MFamd64: use register_t's.
|
| 149337 |
20-Aug-2005 |
stefanf |
Move MINSIGSTKSZ from <machine/signal.h> to <machine/_limits.h> and rename
it to __MINSIGSTKSZ. Define MINSIGSTKSZ in <sys/signal.h>.
This is done in order to use MINSIGSTKSZ for the macro PTHREAD_STACK_MIN
in <pthread.h> (soon <limits.h>) without having to include the whole
<sys/signal.h> header.
Discussed with: bde
|
| 148231 |
21-Jul-2005 |
phk |
Make the facility for recognizing BIOS-signatures more general
and return a printable representation.
This fixes recognition of the PC Engines WRAP and improves the
recognition of the Soekris boards (Bios version can now be
seen in the dmesg output for instance).
Also, add watchdog support for PCM-582x platforms.
Submitted by: Adrian Steinmann <ast@marabu.ch>
Slightly changed by: phk
PR: 81360
|
| 148067 |
15-Jul-2005 |
jhb |
Convert the atomic_ptr() operations over to operating on uintptr_t
variables rather than void * variables. This makes it easier and simpler
to get asm constraints and volatile keywords correct.
MFC after: 3 days
Tested on: i386, alpha, sparc64
Compiled on: ia64, powerpc, amd64
Kernel toolchain busted on: arm
|
| 147855 |
09-Jul-2005 |
jhb |
Some cleanups and tweaks to some of the atomic.h files in preparation for
further changes and fixes in the future:
- Use aliases via macros rather than duplicated inlines wherever possible.
- Move all the aliases to the bottom of these files and the inline
functions to the top.
- Add various comments.
- On alpha, drop atomic_{load_acq,store_rel}_{8,char,16,short}().
- On i386 and amd64, don't duplicate the extern declarations for functions
in the two non-inline cases (KLD_MODULE and compiler doesn't do inlines),
instead, consolidate those two cases.
- Some whitespace fixes.
Approved by: re (scottl)
|
| 147744 |
02-Jul-2005 |
thompsa |
Check the alignment of the IP header before passing the packet up to the
packet filter. This would cause a panic on architectures that require strict
alignment such as sparc64 (tier1) and ia64/ppc (tier2).
This adds two new macros that check the alignment, these are compile time
dependent on __NO_STRICT_ALIGNMENT which is set for i386 and amd64 where
alignment isn't need so the cost is avoided.
IP_HDR_ALIGNED_P()
IP6_HDR_ALIGNED_P()
Move bridge_ip_checkbasic()/bridge_ip6_checkbasic() up so that the alignment
is checked for ipfw and dummynet too.
PR: ia64/81284
Obtained from: NetBSD
Approved by: re (dwhite), mlaier (mentor)
|
| 147691 |
30-Jun-2005 |
peter |
Begin promoting the AMD-originated feature flags to first class flags, now
that newer Intel cpu hardware implements them too. This includes things
like the NX (pte no-execute) flag for execute protection. We'll need to
reference this for implementing no-exec in pmap.c at some point.
Some feature flags are duplicated in both the Intel-orignated bits and
the AMD bits. Suppress the the duplicates correctly - the old code
assumed they were a 1:1 mapping which is not correct. We can't just mask
off the bits present in cpu_feature.
Converge with amd64 where this originated from.
Intel cpu's that implement any AMD features will report them in dmesg now.
Approved by: re
|
| 147671 |
29-Jun-2005 |
peter |
Switch AMD64 and i386 platforms to using ELF as their kernel crash
dump format. The key reason to do this is so that we can dump sparse
address space. For example, we need to be able to skip the PCI hole
just below the 4GB boundary. Trying to destructively dump MMIO device
registers is Really Bad(TM). The frequent result of trying to do a
crash dump on a machine with 4GB or more ram was ugly (lockup or reboot).
This code has been taken directly from the IA64 dump_machdep.c code,
with just a few (mostly minor) mods.
Introduce a dump_avail[] array in the machdep.c code so that we have a
source of truth for what memory is present in a machine that needs to be
dumped. We can't use phys_avail[] because all sorts of things slice
memory out of it that we really need to dump. eg: the vm page array
and the dmesg buffer. dump_avail[] is pretty much an unmolested version
of phys_avail[]. It does have Maxmem correction.
Bump the i386 and amd64 dump format to version 2, but nothing actually
uses this. amd64 was actually using the i386 dump version number.
libkvm support to follow.
Approved by: re
|
| 147191 |
09-Jun-2005 |
jkoshy |
MFP4:
- Implement sampling modes and logging support in hwpmc(4).
- Separate MI and MD parts of hwpmc(4) and allow sharing of
PMC implementations across different architectures.
Add support for P4 (EMT64) style PMCs to the amd64 code.
- New pmcstat(8) options: -E (exit time counts) -W (counts
every context switch), -R (print log file).
- pmc(3) API changes, improve our ability to keep ABI compatibility
in the future. Add more 'alias' names for commonly used events.
- bug fixes & documentation.
|
| 147181 |
09-Jun-2005 |
ups |
Add IPI support for preempting a thread on another CPU.
MFC after: 3 weeks
|
| 146818 |
31-May-2005 |
dfr |
Add support for XMM registers in GDB for x86 processors that support
SSE (or its successors).
Reviewed by: marcel, davidxu
MFC After: 2 weeks
|
| 146734 |
29-May-2005 |
nyan |
Remove bus_{mem,p}io.h and related code for a micro-optimization on i386
and amd64. The optimization is a trivial on recent machines.
Reviewed by: -arch (imp, marcel, dfr)
|
| 146721 |
28-May-2005 |
nyan |
Change the spkr_set_pitch() function to a macro to fix low level profiling.
|
| 146263 |
16-May-2005 |
obrien |
Add the 2nd word of IA32 feature flags. This includes things such as SSE3.
Obtained from: sys/amd64/amd64/identcpu.
|
| 146211 |
14-May-2005 |
nyan |
- Move timerreg.h to <arch>/include and split i8253 specific defines into
i8253reg.h, and add some defines to control a speaker.
- Move PPI related defines from i386/isa/spkr.c into ppireg.h and use them.
- Move IO_{PPI,TIMER} defines into ppireg.h and timerreg.h respectively.
- Use isa/isareg.h rather than <arch>/isa/isa.h.
Tested on: i386, pc98
|
| 146170 |
13-May-2005 |
nectar |
Add a knob for disabling/enabling HTT, "machdep.hyperthreading_allowed".
Default off due to information disclosure on multi-user systems.
Submitted by: cperciva
Reviewed by: jhb
|
| 146137 |
12-May-2005 |
nyan |
- Move the NPX_DEBUG option to options.{i386,pc98} and use opt_npx.h.
- Move npx related defines to {i386,pc98}/include/npx.h to remove #include
{isa,cbus}.h.
|
| 145774 |
01-May-2005 |
jkoshy |
Add convenience APIs pmc_width() and pmc_capabilities() to -lpmc.
Have pmcstat(8) and pmccontrol(8) use these APIs.
Return PMC class-related constants (PMC widths and capabilities)
with the OP GETCPUINFO call leaving OP PMCINFO to return only the
dynamic information associated with a PMC (i.e., whether enabled,
owner pid, reload count etc.).
Allow pmc_read() (i.e., OPS PMCRW) on active self-attached PMCs to
get upto-date values from hardware since we can guarantee that the
hardware is running the correct PMC at the time of the call.
Bug fixes:
- (x86 class processors) Fix a bug that prevented an RDPMC
instruction from being recognized as permitted till after the
attached process had context switched out and back in again after
a pmc_start() call.
Tighten the rules for using RDPMC class instructions: a GETMSR
OP is now allowed only after an OP ATTACH has been done by the
PMC's owner to itself. OP GETMSR is not allowed for PMCs that
track descendants, for PMCs attached to processes other than
their owner processes.
- (P4/HTT processors only) Fix a bug that caused the MI and MD
layers to get out of sync. Add a new MD operation 'get_config()'
as part of this fix.
- Allow multiple system-mode PMCs at the same row-index but on
different CPUs to be allocated.
- Reject allocation of an administratively disabled PMC.
Misc. code cleanups and refactoring. Improve a few comments.
|
| 145727 |
30-Apr-2005 |
dwhite |
Implement an alternate method to stop CPUs when entering DDB. Normally we use
a regular IPI vector, but this vector is blocked when interrupts are disabled.
With "options KDB_STOP_NMI" and debug.kdb.stop_cpus_with_nmi set, KDB will
send an NMI to each CPU instead. The code also has a context-stuffing
feature which helps ddb extract the state of processes running on the
stopped CPUs.
KDB_STOP_NMI is only useful with SMP and complains if SMP is not defined.
This feature only applies to i386 and amd64 at the moment, but could be
used on other architectures with the appropriate MD bits.
Submitted by: ups
|
| 145615 |
28-Apr-2005 |
jkoshy |
Return the correct register number in the 'get_msr()' MD function.
Only allow a process to use the x86 RDPMC instruction if it has
allocated and attached a PMC to itself.
Inform the MD layer of the "pseudo context switch out" that needs
to be done when the last thread of a process is exiting.
|
| 145337 |
20-Apr-2005 |
marcel |
o Reverse the inclusion chain from MD->MI to MI->MD by removing the
inclusion of <sys/pmc.h> and depending on being included from
that header file.
o Include any MD specific header files that otherwise need to be
included from MI files.
Ok'd: jkoshy@
|
| 145256 |
19-Apr-2005 |
jkoshy |
Bring a working snapshot of hwpmc(4), its associated libraries, userland utilities
and documentation into -CURRENT.
Bump FreeBSD_version.
Reviewed by: alc, jhb (kernel changes)
|
| 145253 |
18-Apr-2005 |
imp |
Break out the definition of bus_space_{tag,handle}_t and a few other types
into _bus.h to help with name space polution from including all of bus.h.
In a few days, I'll commit changes to the MI code to take advantage of thse
sepration (after I've made sure that these changes don't break anything in
the main tree, I've tested in my trees, but you never know...).
Suggested by: bde (in 2002 or 2003 I think)
Reviewed in principle by: jhb
|
| 145080 |
14-Apr-2005 |
jhb |
Remove support for mixed mode altogether now that we no longer use IRQ 0
when using an APIC. This simplifies the APIC code somewhat and also allows
us to be pedantically more compliant with ACPI which mandates no use of
mixed mode.
|
| 145047 |
14-Apr-2005 |
peter |
It seems I introduced a new prerequisite for <machine/pcb.h> on i386,
which is included from <sys/user.h>. Add a bandaid for userland.
|
| 145034 |
13-Apr-2005 |
peter |
Change the segment limits to 4GB, we set the user accessible bit on all
of the kernel address space already. Intel recommend this anyway, because
using a non-4GB limit adds an additional clock cycle to address generation.
We were able to install 4GB segments into the LDT, so any limits we imposed
on %cs and %ds were academic anyway. More importantly, this allows us to
make a page in the kernel readable to user applications, for holding things
like the signal trampoline and other fun things.
Move the user %cs/%ds segments from the LDT to the GDT. There was no good
reason for them to be there anyway. The old LDT entries are still there
but we can now relax the restriction that prevented users from emptying
the default LDT entries.
Putting user and kernel %cs and %ds together allows us to access the fast
sysenter/sysexit/syscall/sysret instructions. syscall/sysret in particular
require that the user/kernel segments be laid out this way. Reserve a slot
specifically for NDIS while here.
Create two user controllable slots in the GDT that are context switched
with the (kernel) thread. This allows user applications to set two
user privilige selectors to arbitary values. Create
i386_set_fsbase(void *base) and friends. (get/set, fs/gs). For i386,
%gs is used by tls and the thread libraries and this means that user
processes no longer have to have the cost of having a custom LDT, and
we will no longer to do a ldt switch when activating a kthread/ithread in
the usual case any more.
In other words, we can now set the base address for %fs and %gs to arbitary
addresses without the pain of messing with ldt segments.
|
| 145025 |
13-Apr-2005 |
peter |
Fix an evil bug that appeared in September 2003. VM86 bios calls use two
of the __pcb_spare longs. Except that fields were changed and one of the
spare values was used and the __pcb_spare field was reduced from two to one
long. Now VM86 bios calls can trash the first 4 bytes of the next page
following the kernel stack/pcb. This Is Bad(TM). This bug has been
present in 5.2-release and onwards, and is still in RELENG_5.
Instead of tempting fate and trying to use "spare" fields, explicitly
reserve them.
|
| 145010 |
13-Apr-2005 |
nyan |
Move pc98 specific parts to the pc98 specific file.
|
| 144637 |
04-Apr-2005 |
jhb |
Divorce critical sections from spinlocks. Critical sections as denoted by
critical_enter() and critical_exit() are now solely a mechanism for
deferring kernel preemptions. They no longer have any affect on
interrupts. This means that standalone critical sections are now very
cheap as they are simply unlocked integer increments and decrements for the
common case.
Spin mutexes now use a separate KPI implemented in MD code: spinlock_enter()
and spinlock_exit(). This KPI is responsible for providing whatever MD
guarantees are needed to ensure that a thread holding a spin lock won't
be preempted by any other code that will try to lock the same lock. For
now all archs continue to block interrupts in a "spinlock section" as they
did formerly in all critical sections. Note that I've also taken this
opportunity to push a few things into MD code rather than MI. For example,
critical_fork_exit() no longer exists. Instead, MD code ensures that new
threads have the correct state when they are created. Also, we no longer
try to fixup the idlethreads for APs in MI code. Instead, each arch sets
the initial curthread and adjusts the state of the idle thread it borrows
in order to perform the initial context switch.
This change is largely a big NOP, but the cleaner separation it provides
will allow for more efficient alternative locking schemes in other parts
of the kernel (bare critical sections rather than per-CPU spin mutexes
for per-CPU data for example).
Reviewed by: grehan, cognet, arch@, others
Tested on: i386, alpha, sparc64, powerpc, arm, possibly more
|
| 144611 |
03-Apr-2005 |
imp |
Move pc98 specific parts to the pc98 specific file.
|
| 144604 |
03-Apr-2005 |
imp |
With pc98/include, we can have pc98 and i386 specific bus space
implementations in their own files named $MACHINE/include/bus.h. Copy
the contents appropriately.
|
| 144544 |
02-Apr-2005 |
netchild |
The file machine/ieeefp.h needs sys/cdefs.h on amd64 and i386 after my
compiler features tests. This is ok, since machine/ieeefp.h is an internal
interface. But floatingpoint.h is a public interface and some ports use it,
so include sys/cdefs.h in the amd64 and i386 version of floatingpoint.h.
Note: some architectures don't provide recursive inclusion protection in
floatingpoint.h, namely alpha and ia64. Except for this part and now the
include of sys/cdefs.h, all those files are equal (from a compiler POV),
so they could be moved to only one version in src/include/.
Approved by: joerg
|
| 143768 |
17-Mar-2005 |
das |
Initialize the mxcsr properly, so the initial value in a process isn't
just the value that was left over from some other application.
|
| 143658 |
15-Mar-2005 |
das |
Remove fpsetsticky(). This was added for SysV compatibility, but due
to mistakes from day 1, it has always had semantics inconsistent with
SVR4 and its successors. In particular, given argument M:
- On Solaris and FreeBSD/{alpha,sparc64}, it clobbers the old flags
and *sets* the new flag word to M. (NetBSD, too?)
- On FreeBSD/{amd64,i386}, it *clears* the flags that are specified in M
and leaves the remaining flags unchanged (modulo a small bug on amd64.)
- On FreeBSD/ia64, it is not implemented.
There is no way to fix fpsetsticky() to DTRT for both old FreeBSD apps
and apps ported from other operating systems, so the best approach
seems to be to kill the function and fix any apps that break. I
couldn't find any ports that use it, and any such ports would already
be broken on FreeBSD/ia64 and Linux anyway.
By the way, the routine has always been undocumented in FreeBSD,
except for an MLINK to a manpage that doesn't describe it. This
manpage has stated since 5.3-RELEASE that the functions it describes
are deprecated, so that must mean that functions that it is *supposed*
to describe but doesn't are even *more* deprecated. ;-)
Note that fpresetsticky() has been retained on FreeBSD/i386. As far
as I can tell, no other operating systems or ports of FreeBSD
implement it, so there's nothing for it to be inconsistent with.
PR: 75862
Suggested by: bde
|
| 143598 |
14-Mar-2005 |
scottl |
Refactor the bus_dma header files so that the interface is described in
sys/bus_dma.h instead of being copied in every single arch. This slightly
reorders a flag that was specific to AXP and thus changes the ABI there.
The interface still relies on bus_space definitions found in <machine/bus.h>
so it cannot be included on its own yet, but that will be fixed at a later
date. Add an MD <machine/bus_dma.h> for ever arch for consistency and to
allow for future MD augmentation of the API. sparc64 makes heavy use of
this right now due to its different bus_dma implemenation.
|
| 143428 |
11-Mar-2005 |
peter |
Remove an OBE set of comments, fix a minor whitespace nit while here.
|
| 143324 |
09-Mar-2005 |
jhb |
- Remove the BURN_BRIDGES marked support for hooking into the ISA timer 0
interrupt.
- Remove the timer_func variable as it now has a static value of
hardclock() and is only used in one place.
Axe borrowed from: phk
|
| 143063 |
02-Mar-2005 |
joerg |
netchild's mega-patch to isolate compiler dependencies into a central
place.
This moves the dependency on GCC's and other compiler's features into
the central sys/cdefs.h file, while the individual source files can
then refer to #ifdef __COMPILER_FEATURE_FOO where they by now used to
refer to #if __GNUC__ > 3.1415 && __BARC__ <= 42.
By now, GCC and ICC (the Intel compiler) have been actively tested on
IA32 platforms by netchild. Extension to other compilers is supposed
to be possible, of course.
Submitted by: netchild
Reviewed by: various developers on arch@, some time ago
|
| 142107 |
19-Feb-2005 |
ru |
Use a common multi-inclusion protection, and add such a
protection to alpha/include/exec.h.
|
| 142087 |
19-Feb-2005 |
marius |
Together with the changes to compile kernels with the Intel C/C++ compiler
preliminary support for using the GCC-compatibility of ICC was committed
but couldn't be tested at that time due to problems with ICC itself. Since
ICC 8.1 it's possible to use its GCC-compatibility under FreeBSD and it
turned out that a typedef for __gnuc_va_list is required in that case.
Revert the part of rev. 1.8 which #ifdef'ed out __gnuc_va_list for ICC.
MFC after: 1 week
|
| 141784 |
13-Feb-2005 |
alc |
Implement support for CPU private mappings within sf_buf_alloc().
|
| 141538 |
08-Feb-2005 |
jhb |
Use the local APIC timer to drive the various kernel clocks on SMP machines
rather than forwarding interrupts from the clock devices around using IPIs:
- Add an IDT vector that pushes a clock frame and calls
lapic_handle_timer().
- Add functions to program the local APIC timer including setting the
divisor, and setting up the timer to either down a periodic countdown
or one-shot countdown.
- Add a lapic_setup_clock() function that the BSP calls from
cpu_init_clocks() to setup the local APIC timer if it is going to be
used. The setup uses a one-shot countdown to calibrate the timer. We
then program the timer on each CPU to fire at a frequency of hz * 3.
stathz is defined as freq / 23 (hz * 3 / 23), and profhz is defined as
freq / 2 (hz * 3 / 2). This gives the clocks relatively prime divisors
while keeping a low LCM for the frequency of the clock interrupts.
Thanks to Peter Jeremy for suggesting this approach.
- Remove the hardclock and statclock forwarding code including the two
associated IPIs. The bitmap IPI handler has now effectively degenerated
to just IPI_AST.
- When the local APIC timer is used we don't turn the RTC on at all, but
we still enable interrupts on the ISA timer 0 (i8254) for timecounting
purposes.
|
| 140862 |
26-Jan-2005 |
sobomax |
o Move copyin()/copyout() out of i386_{get,set}_ldt() and
i386_{get,set}_ioperm() and make those APIs visible in the kernel namespace;
o use i386_{get,set}_ldt() and i386_{get,set}_ioperm() instead of sysarch()
in the linuxlator, which allows to kill another two stackgaps.
MFC after: 2 weeks
|
| 140451 |
18-Jan-2005 |
jhb |
Tweak the ELCR support slightly. Explicitly probe the ELCR during boot
instead of burying that in the atpic(4) code as atpic(4) is not the only
user of elcr(4). Change the elcr(4) code to export a global elcr_found
variable that other code can check to see if a valid ELCR was found.
MFC after: 1 month
|
| 139840 |
07-Jan-2005 |
scottl |
Introduce bus_dmamap_load_mbuf_sg(). Instead of taking a callback arg, this
cuts to the chase and fills in a provided s/g list. This is meant to optimize
out the cost of the callback since the callback doesn't serve much purpose for
mbufs since mbuf loads will never be deferred. This is just for amd64 and
i386 at the moment, other arches will be coming shortly.
|
| 139790 |
06-Jan-2005 |
imp |
/* -> /*- for copyright notices, minor format tweaks as necessary
|
| 139789 |
06-Jan-2005 |
imp |
Remove left over include file from stallion driver.
|
| 139788 |
06-Jan-2005 |
imp |
Expand indirect reference to BSD license with the current one.
|
| 139787 |
06-Jan-2005 |
imp |
This doesn't seem to have been used since 386BSD days
|
| 139732 |
05-Jan-2005 |
imp |
These appear to be unused in our tree, so remove them.
|
| 139243 |
23-Dec-2004 |
jhb |
Add some constants for the local APIC timer.
|
| 139242 |
23-Dec-2004 |
jhb |
Add a simple 'intrcnt_add' function that other MD code can use to add a
single named counter to the interrupt counts without having to fake up an
entire interrupt source.
|
| 139240 |
23-Dec-2004 |
jhb |
- Add a function to set the Task Priority Register (TPR) of the local APIC.
Currently this is only used to initiailize the TPR to 0 during initial
setup.
- Reallocate vectors for the local APIC timer, error, and thermal LVT
entries. The timer entry is allocated from the top of the I/O interrupt
range reducing the number of vectors available for hardware interrupts
to 191. Linux happens to use the same exact vector for its timer
interrupt as well. If the timer vector shared the same priority queue
as the IPI handlers, then the frequency that the timer vector will
eventually be firing at can interact badly with the IPIs resulting in
the queue filling and the dreaded IPI stuck panics, hence it being located
at the top of the previous priority queue instead.
- Fixup various minor nits in comments.
|
| 138528 |
07-Dec-2004 |
ups |
Avoid more than two pending IPI interrupt vectors per local APIC
as this may cause deadlocks.
This should fix kern/72123.
Discussed with: jhb
Tested by: Nik Azim Azam, Andy Farkas, Flack Man, Aykut KARA
Izzet BESKARDES, Jens Binnewies, Karl Keusgen
Approved by: sam (mentor)
|
| 138253 |
01-Dec-2004 |
marcel |
Change gdb_cpu_setreg() to not take the value to which to set the
specified register, but a pointer to the in-memory representation of
that value. The reason for this is twofold:
1. Not all registers can be represented by a register_t. In particular
FP registers fall in that category. Passing the new register value
by reference instead of by value makes this point moot.
2. When we receive a G or P packet, both are for writing a register,
the packet will have the register value in target-byte order and
in the memory representation (modulo the fact that bytes are sent
as 2 printable hexadecimal numbers of course). We only need to
decode the packet to have a pointer to the register value.
This change fixes the bug of extracting the register value of the P
packet as a hexadecimal number instead of as a bit array. The quick
(and dirty) fix to bswap the register value in gdb_cpu_setreg() as
it has been added on i386 and amd64 can therefore be removed and has
in fact been that.
Tested on: alpha, amd64, i386, ia64, sparc64
|
| 137914 |
20-Nov-2004 |
das |
Remove UAREA_PAGES.
Reviewed by: arch@
|
| 137784 |
16-Nov-2004 |
jhb |
Initiate deorbit burn sequence for 80386 support in FreeBSD: Remove
80386 (I386_CPU) support from the kernel.
|
| 137623 |
12-Nov-2004 |
jhb |
Spell _KERNEL correctly so that UP kernels are actually optimized again.
Submitted by: pjd
|
| 137622 |
12-Nov-2004 |
jhb |
- Use the SMP style ops for atomic_load/store() in userland so that
libraries and binaries will work on both UP and SMP machines.
- Remove unnecessary gcc memory barrier from the UP atomic_store() op.
Submitted by: bde
|
| 137591 |
11-Nov-2004 |
jhb |
- Place the gcc memory barrier hint in the right place in the 80386 version
of atomic_store_rel().
- Use the 80386 versions of atomic_load_acq() and atomic_store_rel() that
do not use serializing instructions on all UP kernels since a UP machine
does need to synchronize with other CPUs. This trims lots of cycles from
spin locks on UP kernels among other things.
Benchmarked by: rwatson
|
| 137289 |
06-Nov-2004 |
peter |
Begin an invasion of i386-land by amd64.
Expose some of the amd64-specific sysarch functions to allow alternative
implementations of the %fs/%gs code for TLS, threads, etc. USER_LDT does
not exist on the amd64 kernel, so we have to implement things other ways.
|
| 136366 |
11-Oct-2004 |
njl |
Move the code for halting the CPU (acpi_cpu_c1) into machdep files.
This removes the last MD portion of acpi_cpu.c.
MFC after: 2 weeks
|
| 136252 |
08-Oct-2004 |
alc |
Make pte_load_store() an atomic operation in all cases, not just i386 PAE.
Restructure pmap_enter() to prevent the loss of a page modified (PG_M) bit
in a race between processors. (This restructuring assumes the newly atomic
pte_load_store() for correct operation.)
Reviewed by: tegge@
PR: i386/61852
|
| 135939 |
29-Sep-2004 |
alc |
Prevent the unexpected deallocation of a page table page while performing
pmap_copy(). This entails additional locking in pmap_copy() and the
addition of a "flags" parameter to the page table page allocator for
specifying whether it may sleep when memory is unavailable. (Already,
pmap_copy() checks the availability of memory, aborting if it is scarce.
In theory, another CPU could, however, allocate memory between
pmap_copy()'s check and the call to the page table page allocator,
causing the current thread to release its locks and sleep. This change
makes this scenario impossible.)
Reviewed by: tegge@
|
| 135283 |
15-Sep-2004 |
julian |
Fix breakpoint handling for i386.
not sure yet about 5.x... MFC if needed.
Also fixes small problems with examining some registers and
some specific gdb transfer problems.
As the patch says:
This is not a pretty patch and only meant as a temporary
fix until a better solution is committed.
PR: i386/71715
Submitted by: Stephan Uphoff <ups@tree.com>
MFC after: 1 week
|
| 135065 |
11-Sep-2004 |
scottl |
Double the number of kernel page tables for amd64 and for i386/PAE. The old
value was only enough for 8GB of RAM, the new value can do 16GB. This still
isn't optimal since it doesn't scale. Fixing this for amd64 looks to be
fairly easy, but for i386 will be quite difficult.
Reviewed by: peter
|
| 134649 |
02-Sep-2004 |
scottl |
Turn PREEMPTION into a kernel option. Make sure that it's defined if
FULL_PREEMPTION is defined. Add a runtime warning to ULE if PREEMPTION is
enabled (code inspired by the PREEMPTION warning in kern_switch.c). This
is a possible MT5 candidate.
|
| 134616 |
01-Sep-2004 |
julian |
Give up trying to make preemption dependent on SCHED_4BSD
the list of breakages was getting too long
|
| 134610 |
01-Sep-2004 |
julian |
Don't ask for this for modules. no modules need to know about preemption at the moment
|
| 134599 |
01-Sep-2004 |
scottl |
Protect the PREEMPTION logic with #ifdef _KERNEL to fix the build.
|
| 134598 |
01-Sep-2004 |
julian |
Only turn preemption for 4bsd.
it's still poison for ULE.
|
| 134591 |
01-Sep-2004 |
julian |
Give the 4bsd scheduler the ability to wake up idle processors
when there is new work to be done.
MFC after: 5 days
|
| 134398 |
27-Aug-2004 |
marcel |
Move the kernel-specific logic to adjust frompc from MI to MD. For
these two reasons:
1. On ia64 a function pointer does not hold the address of the first
instruction of a functions implementation. It holds the address
of a function descriptor. Hence the user(), btrap(), eintr() and
bintr() prototypes are wrong for getting the actual code address.
2. The logic forces interrupt, trap and exception entry points to
be layed-out contiguously. This can not be achieved on ia64 and is
generally just bad programming.
The MCOUNT_FROMPC_USER macro is used to set the frompc argument to
some kernel address which represents any frompc that falls outside
the kernel text range. The macro can expand to ~0U to bail out in
that case.
The MCOUNT_FROMPC_INTR macro is used to set the frompc argument to
some kernel address to represent a call to a trap or interrupt
handler. This to avoid that the trap or interrupt handler appear to
be called from everywhere in the call graph. The macro can expand
to ~0U to prevent adjusting frompc. Note that the argument is selfpc,
not frompc.
This commit defines the macros on all architectures equivalently to
the original code in sys/libkern/mcount.c. People can take it from
here...
Compile-tested on: alpha, amd64, i386, ia64 and sparc64
Boot-tested on: i386
|
| 134300 |
25-Aug-2004 |
obrien |
Fix a bug in in_cksum_hdr w/o -O.
The C code assumes that the carry bit is always kept from the previous
operation. However, the pointer indexing requires another add operation.
Thus, the carry bit from the first operation is tromped over by the
"addl" operation that ends up following it, so the "adcl" that follows
that has no effect because the carry bit is cleared before it.
The result is checksum failure on received packets.
The larger issue is that there isn't any other way of preventing the compiler
inserting arbitrary instructions between different __asm statements (and
that the commit message in revision 1.13 of in_cksum.h is wrong on
this point). From
http://developer.apple.com/documentation/DeveloperTools/gcc-3.3/gcc/Extended-Asm.html
---8<---8<---8<---
You can't expect a sequence of volatile asm instructions to remain
perfectly consecutive. If you want consecutive output, use a single
asm. Also, GCC will perform some optimizations across a volatile
asm instruction; GCC does not "forget everything" when it encounters
a volatile asm instruction the way some other compilers do.
---8<---8<---8<---
Also, this change also makes the ASM code much easier to read.
PR: 69257
Submitted by: Mike Bristow <mike@urgle.com>, Qing Li <qing.li@bluecoat.com>
|
| 133827 |
16-Aug-2004 |
obrien |
Increase the scaling of VM_KMEM_SIZE_MAX.
Submitted by: alc
|
| 133759 |
15-Aug-2004 |
rwatson |
Add an "options MP_WATCHDOG" to i386. This option allows one of the
logical CPUs on a system to be used as a dedicated watchdog to cause a
drop to the debugger and/or generate an NMI to the boot processor if
the kernel ceases to respond. A sysctl enables the watchdog running
out of the processor's idle thread; a callout is launched to reset a
timer in the watchdog. If the callout fails to reset the timer for ten
seconds, the watchdog will fire. The sysctl allows you to select which
CPU will run the watchdog.
A sample "debug.leak_schedlock" is included, which causes a sysctl to
spin holding sched_lock in order to trigger the watchdog. On my Xeons,
the watchdog is able to detect this failure mode and break into the
debugger, which cannot otherwise be done without an NMI button.
This option does not currently work with sched_ule due to ule's push
notion of scheduling, similar to machdep.hlt_logical_cpus failing to
work with that scheduler.
On face value, this might seem somewhat inefficient, but there are a
lot of dual-processor Xeons with HTT around, so using one as a watchdog
for testing is not as inefficient as one might fear.
|
| 133084 |
03-Aug-2004 |
mux |
Instead of calling ia32_pause() conditionally on __i386__ or __amd64__
being defined, define and use a new MD macro, cpu_spinwait(). It only
expands to something on i386 and amd64, so the compiled code should be
identical.
Name of the macro found by: jhb
Reviewed by: jhb
|
| 133027 |
02-Aug-2004 |
dfr |
Add definitions for TLS relocations.
|
| 133017 |
02-Aug-2004 |
scottl |
Optimize intr_execute_handlers() by combining the pic_disable_source() and
pic_eoi_source() into one call. This halves the number of spinlock operations
and indirect function calls in the normal case of handling a normal (ithread)
interrupt. Optimize the atpic and ioapic drivers to use inlines where
appropriate in supporting the intr_execute_handlers() change.
This knocks 900ns, or roughly 1350 cycles, off of the time spent servicing an
interrupt in the common case on my 1.5GHz P4 uniprocessor system. SMP systems
likely won't see as much of a gain due to the ioapic being more efficient than
the atpic. I'll investigate porting this to amd64 soon.
Reviewed by: jhb
|
| 132961 |
01-Aug-2004 |
scottl |
Turn off PREEMPTION by default while it gets debugged. It's been causing
4 weeks of problems including deadlocks and instant panics. Note that the
real bugs are likely in the scheduler.
|
| 132956 |
01-Aug-2004 |
markm |
Break out the MI part of the /dev/[k]mem and /dev/io drivers into
their own directory and module, leaving the MD parts in the MD
area (the MD parts _are_ part of the modules). /dev/mem and /dev/io
are now loadable modules, thus taking us one step further towards
a kernel created entirely out of modules. Of course, there is nothing
preventing the kernel from having these statically compiled.
|
| 132700 |
27-Jul-2004 |
rwatson |
Pass a thread argument into cpu_critical_{enter,exit}() rather than
dereference curthread. It is called only from critical_{enter,exit}(),
which already dereferences curthread. This doesn't seem to affect SMP
performance in my benchmarks, but improves MySQL transaction throughput
by about 1% on UP on my Xeon.
Head nodding: jhb, bmilekic
|
| 132383 |
19-Jul-2004 |
das |
Make FLT_ROUNDS correctly reflect the dynamic rounding mode.
|
| 131952 |
10-Jul-2004 |
marcel |
Mega update for the KDB framework: turn DDB into a KDB backend.
Most of the changes are a direct result of adding thread awareness.
Typically, DDB_REGS is gone. All registers are taken from the
trapframe and backtraces use the PCB based contexts. DDB_REGS was
defined to be a trapframe on all platforms anyway.
Thread awareness introduces the following new commands:
thread X switch to thread X (where X is the TID),
show threads list all threads.
The backtrace code has been made more flexible so that one can
create backtraces for any thread by giving the thread ID as an
argument to trace.
With this change, ia64 has support for breakpoints.
|
| 131936 |
10-Jul-2004 |
marcel |
Update for the KDB framework:
o s/ddb_on_nmi/kdb_on_nmi/g
o Rename sysctl machdep.ddb_on_nmi to machdep.kdb_on_nmi
o Make debugging support conditional upon KDB instead of DDB.
o Call kdb_reenter() when kdb_active is non-zero.
o Call kdb_trap() to enter the debugger when not already active.
o Update comments accordingly.
o Remove misplaced prototype of kdb_trap().
|
| 131905 |
10-Jul-2004 |
marcel |
Implement makectx(). The makectx() function is used by KDB to create
a PCB from a trapframe for purposes of unwinding the stack. The PCB
is used as the thread context and all but the thread that entered the
debugger has a valid PCB.
This function can also be used to create a context for the threads
running on the CPUs that have been stopped when the debugger got
entered. This however is not done at the time of this commit.
|
| 131903 |
10-Jul-2004 |
marcel |
Introduce the KDB debugger frontend. The frontend provides a framework
in which multiple (presumably different) debugger backends can be
configured and which provides basic services to those backends.
Besides providing services to backends, it also serves as the single
point of contact for any and all code that wants to make use of the
debugger functions, such as entering the debugger or handling of the
alternate break sequence. For this purpose, the frontend has been
made non-optional.
All debugger requests are forwarded or handed over to the current
backend, if applicable. Selection of the current backend is done by
the debug.kdb.current sysctl. A list of configured backends can be
obtained with the debug.kdb.available sysctl. One can enter the
debugger by writing to the debug.kdb.enter sysctl.
|
| 131899 |
10-Jul-2004 |
marcel |
Introduce the GDB debugger backend for the new KDB framework. The
backend improves over the old GDB support in the following ways:
o Unified implementation with minimal MD code.
o A simple interface for devices to register themselves as debug
ports, ala consoles.
o Compression by using run-length encoding.
o Implements GDB threading support.
|
| 131481 |
02-Jul-2004 |
jhb |
Implement preemption of kernel threads natively in the scheduler rather
than as one-off hacks in various other parts of the kernel:
- Add a function maybe_preempt() that is called from sched_add() to
determine if a thread about to be added to a run queue should be
preempted to directly. If it is not safe to preempt or if the new
thread does not have a high enough priority, then the function returns
false and sched_add() adds the thread to the run queue. If the thread
should be preempted to but the current thread is in a nested critical
section, then the flag TDF_OWEPREEMPT is set and the thread is added
to the run queue. Otherwise, mi_switch() is called immediately and the
thread is never added to the run queue since it is switch to directly.
When exiting an outermost critical section, if TDF_OWEPREEMPT is set,
then clear it and call mi_switch() to perform the deferred preemption.
- Remove explicit preemption from ithread_schedule() as calling
setrunqueue() now does all the correct work. This also removes the
do_switch argument from ithread_schedule().
- Do not use the manual preemption code in mtx_unlock if the architecture
supports native preemption.
- Don't call mi_switch() in a loop during shutdown to give ithreads a
chance to run if the architecture supports native preemption since
the ithreads will just preempt DELAY().
- Don't call mi_switch() from the page zeroing idle thread for
architectures that support native preemption as it is unnecessary.
- Native preemption is enabled on the same archs that supported ithread
preemption, namely alpha, i386, and amd64.
This change should largely be a NOP for the default case as committed
except that we will do fewer context switches in a few cases and will
avoid the run queues completely when preempting.
Approved by: scottl (with his re@ hat)
|
| 131272 |
29-Jun-2004 |
peter |
Reduce the size of pv entries by 15%. This saves 1MB of KVA for mapping
pv entries per 1GB of user virtual memory. (eg: if we had 1GB file was
mmaped into 30 processes, that would theoretically reduce the KVA demand by
30MB for pv entries. In reality though, we limit pv entries so we don't
have that many at once.)
We used to store the vm_page_t for the page table page. But we recently
had the pa of the ptp, or can calculate it fairly quickly. If we wanted
to avoid the shift/mask operation in pmap_pde(), we could recover the
pa but that means we have to store it for a while.
This does not measurably change performance.
Suggested by: alc
Tested by: alc
|
| 131225 |
28-Jun-2004 |
imp |
bde points out that this can't do anything useful. The full patch has
other parts that I can't locat at the moment, so back it out until I can.
|
| 131220 |
28-Jun-2004 |
imp |
When opening /dev/io, preserve iopl properly. Otherwise, if you open
/dev/io multiple times, the first close remove the privs.
|
| 131219 |
28-Jun-2004 |
imp |
remove needless blankline
|
| 130980 |
23-Jun-2004 |
jhb |
Various cleanups in support of a future ioapic_config_intr() function:
- Allow ioapic_set_{nmi,smi,extint}() to be called multiple times on the
same pin so long as the pin's mode is the same as the mode being
requested.
- Add a notion of bus type for the interrupt associated with interrupt pin.
This is needed so that we can force all EISA interrupts to be active high
in the forthcoming ioapic_config_intr().
- Fix a bug for EISA systems that didn't remap IRQs. This would have broken
EISA systems that tried to disable mixed mode for IRQ 0.
|
| 130764 |
20-Jun-2004 |
bde |
Backed out previous commit. Blind substitution of dev_t by `struct cdev *'
was just wrong here because the dev_t's are user dev_t's.
|
| 130755 |
20-Jun-2004 |
bde |
Include <sys/_lock.h>'s prerequisite <sys/queue.h> before including the
former, not after.
|
| 130585 |
16-Jun-2004 |
phk |
Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.
|
| 130573 |
16-Jun-2004 |
alc |
MFamd64
Introduce pmap locking to many of the pmap functions.
|
| 130399 |
13-Jun-2004 |
alc |
- Remove an unused declaration.
- Move a definition inside the scope of a #ifdef _KERNEL.
|
| 130313 |
10-Jun-2004 |
jhb |
- Use the correct devclass name ("acpi" vs "ACPI") to detect if acpi0 is
present and thus that the PnPBIOS probe should be skipped instead of
having ACPI zero out the PnPBIOStable pointer.
- Make the PnPBIOStable pointer static to i386/i386/bios.c now that that is
the only place it is used.
|
| 130312 |
10-Jun-2004 |
jhb |
Remove atdevbase and replace it's remaining uses with direct references to
KERNBASE instead.
|
| 130040 |
03-Jun-2004 |
phk |
Add new bios_string() which will hunt for a string inside a given range
of the BIOS. This can be used for finding arbitrary magic in the BIOS
in order to recognize particular platforms.
|
| 130036 |
03-Jun-2004 |
phk |
The NatSemi (now AMD) Geode SC1100 needs special treatment here and there
because it is an embedded gadget. Give it it's own value for the "cpu"
variable and add code to reset it lacking a keyboard controller.
|
| 129872 |
30-May-2004 |
phk |
struct cpu_nameclass is a private to identcpu.c, move it there.
|
| 129498 |
20-May-2004 |
bde |
Moved i386 asms to an i386 header. The asms are for calibration of
high resolution kernel profiling (options GUPROF. "U" in GUPROF stands
for microseconds resolution, but the resolution is now smaller than 1
nanosecond on multi-GHz machines and the accuracy is heading towards
1 nanosecond too). Arches that support GUPROF must now provide certain
macros for the calibration. GUPROF is now only supported for i386's,
so the absence of the new macros for other arches doesn't break anything
that wasn't already broken. amd64's have uncommitted support for
GUPROF, and sparc64's have support that seems to be complete except
here (there was an #error for non-i386 cases; now there are undefined
macros).
Changed the asms a little:
- declare them as __volatile. They must not be moved, and exporting a
label across asms is technically incorrect, so try harder to stop gcc
moving them.
- don't put the non-clobbered register "bx" in the clobber list. The
clobber lists are still more conservative than necessary.
- drop the non-support for gcc-1. It just gave a better error message,
and this is not useful since compiling with gcc-1 would cause thousands
of worse error messages.
- drop the support for aout.
|
| 129445 |
19-May-2004 |
bde |
Fixed some style bugs (mainly misalignment of backslashes).
|
| 129444 |
19-May-2004 |
bde |
Moved most of the "MI" definitions and declarations from <machine/profile.h>
to <sys/gmon.h>. Cleaned them up a little by not attempting to ifdef
for incomplete and out of date support for GUPROF in userland, as in
the sparc64 version.
|
| 129393 |
18-May-2004 |
stefanf |
<stdint.h> should define WINT_M{AX,IN} independent from whether WCHAR_MIN is
defined. Otherwise first including <wchar.h> and then <stdint.h> leads to no
WINT_M{AX,IN} at all.
PR: 64956
Approved by: das (mentor)
|
| 129097 |
10-May-2004 |
jhb |
Rework the APIC mixed mode support a bit:
- Require the APIC enumerators to explicitly enable mixed mode by calling
ioapic_enable_mixed_mode(). Calling this function tells the apic driver
that the PC-AT 8259A PICs are present and routable through the first I/O
APIC via an ExtINT pin. The mptable enumerator always calls this
function for now. The MADT enumerator only enables mixed mode if the
PC-AT compatability flag is set in the MADT header.
- Allow mixed mode to be enabled or disabled via a 'hw.apic.mixed_mode'
tunable. By default this tunable is set to 1 (true). The kernel option
NO_MIXED_MODE changes the default to 0 to preserve existing behavior, but
adding 'hw.apic.mixed_mode=0' to loader.conf achieves the same effect.
- Only use mixed mode to route IRQ 0 if it is both enabled by the APIC
enumerator and activated by the loader tunable. Note that both
conditions must be true, so if the APIC enumerator does not enable mixed
mode, then you can't set the tunable to try to override the enumerator.
|
| 128979 |
05-May-2004 |
njl |
Add an MI implementation of the ACPI global lock routines and retire the
individual asm versions. The global lock is shared between the BIOS and
OS and thus cannot use our mutexes. It is defined in section 5.2.9.1 of
the ACPI specification.
Reviewed by: marcel, bde, jhb
|
| 128933 |
04-May-2004 |
jhb |
- Create a pir0 psuedo device as a child of legacy0 if we attach a legacy
host-PCI bridge device and find a valid $PIR.
- Make pci_pir_parse() private to pci_pir.c and have pir0's attach routine
call it instead of having legacy_pcib_attach() call it.
- Implement suspend/resume support for the $PIR by giving pir0 a resume
method that calls the BIOS to reroute each link that was already routed
before the machine was suspended.
- Dump the state of the routed flag in the links display code.
- If a link's IRQ is set by a tunable, then force that link to be re-routed
the first time it is used.
- Move the 'Found $PIR' message under bootverbose as the pir0 description
line lists the number of entries already. The pir0 line also only shows
up if we are actually using the $PIR which is a bonus.
- Use BUS_CONFIG_INTR() to ensure that any IRQs used by a PCI link are
set to level/low trigger/polarity.
|
| 128931 |
04-May-2004 |
jhb |
- Add a new pic method pic_config_intr() to set the trigger mode and
polarity for a specified IRQ. The intr_config_intr() function wraps
this pic method hiding the IRQ to interrupt source lookup.
- Add a config_intr() method to the atpic(4) driver that reconfigures
the interrupt using the ELCR if possible and returns an error otherwise.
- Add a config_intr() method to the apic(4) driver that just logs any
requests that would change the existing programming under bootverbose.
Currently, the only changes the apic(4) driver receives are due to bugs
in the acpi(4) driver and its handling of link devices, hence the reason
for such requests currently being ignored.
- Have the nexus(4) driver on i386 implement the bus_config_intr() function
by calling intr_config_intr().
|
| 128930 |
04-May-2004 |
jhb |
- Change the APIC code to mostly use the recently added intr_trigger
and intr_polarity enums for passing around interrupt trigger modes and
polarity rather than using the magic numbers 0 for level/low and 1 for
edge/high.
- Convert the mptable parsing code to use the new ELCR wrapper code rather
than reading the ELCR directly. Also, use the ELCR settings to control
both the trigger and polarity of EISA IRQs instead of just the trigger
mode.
- Rework the MADT's handling of the ACPI SCI again:
- If no override entry for the SCI exists at all, use level/low trigger
instead of the default edge/high used for ISA IRQs.
- For the ACPI SCI, use level/low values for conforming trigger and
polarity rather than the edge/high values we use for all other ISA
IRQs.
- Rework the tunables available to override the MADT. The
hw.acpi.force_sci_lo tunable is no longer supported. Instead, there
are now two tunables that can independently override the trigger mode
and/or polarity of the SCI. The hw.acpi.sci.trigger tunable can be
set to either "edge" or "level", and the hw.acpi.sci.polarity tunable
can be set to either "high" or "low". To simulate hw.acpi.force_sci_lo,
set hw.acpi.sci.trigger to "level" and hw.acpi.sci.polarity to "low".
If you are having problems with ACPI either causing an interrupt storm
or not working at all (e.g., the power button doesn't turn invoke a
shutdown -p now), you can try tweaking these two tunables to find the
combination that works.
|
| 128928 |
04-May-2004 |
jhb |
Add a simple mini-driver for the ELCR register. Originally, the ELCR
register controlled the trigger mode and polarity of EISA interrupts.
However, it appears that most (all?) PCI systems use the ELCR to manage
the trigger mode and polarity of ISA interrupts as well since ISA IRQs used
to route PCI interrupts need to be level triggered with active low
polarity. We check to see if the ELCR exists by sanity checking the value
we get back ensuring that IRQS 0 (8254), 1 (atkbd), 2 (the link from the
slave PIC), and 8 (RTC) are all clear indicating edge trigger and active
high polarity.
This mini-driver will be used by the atpic driver to manage the trigger and
polarity of ISA IRQs. Also, the mptable parsing code will use this mini
driver rather than examining the ELCR directly.
|
| 128910 |
04-May-2004 |
nyan |
Increase BUS_SPACE_IAT_MAXSIZE to 33 for the ed driver.
|
| 128874 |
03-May-2004 |
jhb |
Make the legacy_pcib_attach() function static.
|
| 128693 |
27-Apr-2004 |
jhb |
Belatedly remove a file from the earlier apic code that is no longer used.
|
| 128629 |
25-Apr-2004 |
das |
Hide FLT_EVAL_METHOD and DECIMAL_DIG in pre-C99 compilation
environments.
PR: 63935
Submitted by: Stefan Farfeleder <stefan@fafoe.narf.at>
|
| 128100 |
11-Apr-2004 |
alc |
- is_physical_memory()'s parameter, which is a physical address, should be
a vm_paddr_t not a vm_offset_t.
|
| 128098 |
10-Apr-2004 |
alc |
- pmap_kenter_temporary()'s first parameter, which is a physical address,
should be declared as vm_paddr_t not vm_offset_t.
|
| 128097 |
10-Apr-2004 |
alc |
- pmap_kenter_temporary() is unused by machine-independent code. Therefore,
move its declaration to the machine-dependent header file on those
machines that use it. In principle, only i386 should have it.
Alpha and AMD64 should use their direct virtual-to-physical mapping.
- Remove pmap_kenter_temporary() from ia64. It is unused. Approved
by: marcel@
|
| 128019 |
07-Apr-2004 |
imp |
Remove advertising clause from University of California Regent's
license, per letter dated July 22, 1999 and email from Peter Wemm,
Alan Cox and Robert Watson.
Approved by: core, peter, alc, rwatson
|
| 127875 |
05-Apr-2004 |
alc |
Remove avail_start on those platforms that no longer use it. (Only amd64
does anything with it beyond simple initialization.)
|
| 127813 |
03-Apr-2004 |
marcel |
Move the definition of rss() from db_interface.c to cpufunc.h where
it belongs. Change the implementation to match those of rfs() and
rgs() for consistency and irrespective of whether the original was
more correct or not (technically speaking).
|
| 127239 |
20-Mar-2004 |
marcel |
Introduce the cpumask_t type. The purpose of the type is to create a
level of abstraction for any and all CPU mask and CPU bitmap variables
so that platforms have the ability to break free from the hard limit
of 32 CPUs, simply because we don't have more bits in an u_int. Note
that the type is not supposed to solve massive parallelism, where
the number of CPUs can be larger than the width of the widest integral
type. As such, cpumask_t is not supposed to be a compound type. If
such would be necessary in the future, we can deal with the issues
then and there. For now, it can be assumed that the type is integral
and unsigned.
With this commit, all MD definitions start off as u_int. This allows
us to phase-in cpumask_t at our leasure without breaking anything.
Once cpumask_t is used consistently, platforms can switch to wider
(or smaller) types if such would be beneficial (or not; whatever :-)
Compile-tested on: i386
|
| 126990 |
14-Mar-2004 |
imp |
The gsc driver uses the old COMPAT_ISA api. Retire it so we can
retire the COMPAT_ISA shims. If someone were to redo this driver with
the new APIs and test it, it can return.
|
| 126984 |
14-Mar-2004 |
imp |
The spigot driver uses the old COMPAT_ISA interface. Retire it since
that's going away soon. Should someone reimplement it using modern
APIs and can test the driver, it can return.
|
| 126964 |
14-Mar-2004 |
imp |
stl and stli use the old COMPAT_ISA api. slt also uses the really old
COMPAT_PCI api. This API is going away, so this driver is going away
also.
If users are interested in updating this, please contact the author
since he has some preliminary work to move this to newer APIs.
|
| 126957 |
14-Mar-2004 |
imp |
remove the ioctl files from the asc, ctx and wt drivers just removed
|
| 126928 |
13-Mar-2004 |
peter |
Move the non-MD machine/dvcfg.h and machine/physio_proc.h to a common
MI area before they proliferate more.
|
| 126891 |
12-Mar-2004 |
trhodes |
These are changes to allow to use the Intel C/C++ compiler (lang/icc)
to build the kernel. It doesn't affect the operation if gcc.
Most of the changes are just adding __INTEL_COMPILER to #ifdef's, as
icc v8 may define __GNUC__ some parts may look strange but are
necessary.
Additional changes:
- in_cksum.[ch]:
* use a generic C version instead of the assembly version in the !gcc
case (ASM code breaks with the optimizations icc does)
-> no bad checksums with an icc compiled kernel
Help from: andre, grehan, das
Stolen from: alpha version via ppc version
The entire checksum code should IMHO be replaced with the DragonFly
version (because it isn't guaranteed future revisions of gcc will
include similar optimizations) as in:
---snip---
Revision Changes Path
1.12 +1 -0 src/sys/conf/files.i386
1.4 +142 -558 src/sys/i386/i386/in_cksum.c
1.5 +33 -69 src/sys/i386/include/in_cksum.h
1.5 +2 -0 src/sys/netinet/igmp.c
1.6 +0 -1 src/sys/netinet/in.h
1.6 +2 -0 src/sys/netinet/ip_icmp.c
1.4 +3 -4 src/contrib/ipfilter/ip_compat.h
1.3 +1 -2 src/sbin/natd/icmp.c
1.4 +0 -1 src/sbin/natd/natd.c
1.48 +1 -0 src/sys/conf/files
1.2 +0 -1 src/sys/conf/files.amd64
1.13 +0 -1 src/sys/conf/files.i386
1.5 +0 -1 src/sys/conf/files.pc98
1.7 +1 -1 src/sys/contrib/ipfilter/netinet/fil.c
1.10 +2 -3 src/sys/contrib/ipfilter/netinet/ip_compat.h
1.10 +1 -1 src/sys/contrib/ipfilter/netinet/ip_fil.c
1.7 +1 -1 src/sys/dev/netif/txp/if_txp.c
1.7 +1 -1 src/sys/net/ip_mroute/ip_mroute.c
1.7 +1 -2 src/sys/net/ipfw/ip_fw2.c
1.6 +1 -2 src/sys/netinet/igmp.c
1.4 +158 -116 src/sys/netinet/in_cksum.c
1.6 +1 -1 src/sys/netinet/ip_gre.c
1.7 +1 -2 src/sys/netinet/ip_icmp.c
1.10 +1 -1 src/sys/netinet/ip_input.c
1.10 +1 -2 src/sys/netinet/ip_output.c
1.13 +1 -2 src/sys/netinet/tcp_input.c
1.9 +1 -2 src/sys/netinet/tcp_output.c
1.10 +1 -1 src/sys/netinet/tcp_subr.c
1.10 +1 -1 src/sys/netinet/tcp_syncache.c
1.9 +1 -2 src/sys/netinet/udp_usrreq.c
1.5 +1 -2 src/sys/netinet6/ipsec.c
1.5 +1 -2 src/sys/netproto/ipsec/ipsec.c
1.5 +1 -1 src/sys/netproto/ipsec/ipsec_input.c
1.4 +1 -2 src/sys/netproto/ipsec/ipsec_output.c
and finally remove
sys/i386/i386 in_cksum.c
sys/i386/include in_cksum.h
---snip---
- endian.h:
* DTRT in C++ mode
- quad.h:
* we don't use gcc v1 anymore, remove support for it
Suggested by: bde (long ago)
- assym.h:
* avoid zero-length arrays (remove dependency on a gcc specific
feature)
This change changes the contents of the object file, but as it's
only used to generate some values for a header, and the generator
knows how to handle this, there's no impact in the gcc case.
Explained by: bde
Submitted by: Marius Strobl <marius@alchemy.franken.de>
- aicasm.c:
* minor change to teach it about the way icc spells "-nostdinc"
Not approved by: gibbs (no reply to my mail)
- bump __FreeBSD_version (lang/icc needs to know about the changes)
Incarnations of this patch survive gcc compiles since a loooong time,
I use it on my desktop. An icc compiled kernel works since Nov. 2003
(exceptions: snd_* if used as modules), it survives a build of the
entire ports collection with icc.
Parts of this commit contains suggestions or submissions from
Marius Strobl <marius@alchemy.franken.de>.
Reviewed by: -arch
Submitted by: netchild
|
| 126846 |
11-Mar-2004 |
bde |
Don't implement anything in the ffs family in <machine/cpufunc.h>
in the non-_KERNEL case. This "fixes" applications that include
this "kernel-only" header and also include <strings.h> (or get
<strings.h> via the default _BSD_VISIBLE pollution in <string.h>.
In C++ there was a fatal error: the declaration specifies C linkage
but the implementation gives C++ linkage. In C there was only a
static/extern mismatch if the headers were included in a certain order
order, and a partially redundant declaration for all include orders;
gcc emits incomplete or wrong diagnostics for these, but only for
compiling with -Wsystem-headers and certain other warning options, so
the problem was usually not seen for C.
Ports breakage reported by: kris
|
| 126715 |
07-Mar-2004 |
alc |
Remove unused declarations. (Some time ago, these variables became fields
of vm/vm.h's struct kva_md_info.)
|
| 126656 |
05-Mar-2004 |
bde |
Fixed insertion sort errors in prototype list.
|
| 126655 |
05-Mar-2004 |
bde |
Removed garbage:
- completely unused things
- all of rev.1.102 (C++ support). <sys/cdefs.h> is included by the
prerequisite <sys/types.h>. __BEGIN_DECLS/__END_DECLS has no effect
(except possibly if undefined behaviour is invoked using a hack like
defining away __inline) since this header doesn't really support any
extern functions.
|
| 126649 |
05-Mar-2004 |
le |
Fix syntax errors and wrong function prototypes in several MD header
files when using non-GNUC compilers.
PR: kern/58515
Submitted by: Stefan Farfeleder <stefan@fafoe.narf.at>
Approved by: grog (mentor), obrien
|
| 125981 |
18-Feb-2004 |
jhb |
Switch to using the new $PIR interrupt routing code and remove the old
code. The pci_cfgreg.c file now just controls reading/writing PCI config
registers.
|
| 124685 |
18-Jan-2004 |
sobomax |
Add new CPU_ENABLE_TCC option, from NOTES:
CPU_ENABLE_TCC enables Thermal Control Circuitry (TCC) found in some
Pentium(tm) 4 and (possibly) later CPUs. When enabled and detected,
TCC allows to restrict power consumption by using machdep.cpuperf*
sysctls. This operates independently of SpeedStep and is useful on
systems where other mechanisms such as apm(4) or acpi(4) don't work.
Given the fact that many, even modern, notebooks don't work properly
with Intel ACPI, this is indeed very useful option for notebook owners.
Obtained from: OpenBSD
MFC after: 2 weeks
|
| 124296 |
09-Jan-2004 |
nectar |
Provide sysarch(2) prototypes in the MD sysarch.h headers. While I'm
at it, use the ANSI C generic pointer type for the second argument,
thus matching the documentation.
Remove the now extraneous (and now conflicting) function declarations
in various libc sources. Remove now unnecessary casts.
Reviewed by: bde
|
| 124180 |
06-Jan-2004 |
nectar |
Use ANSI C function definition for `_mcount' and remove `static'
prototype from header file.
Discussed with: bde, maybe one year ago
|
| 124144 |
05-Jan-2004 |
phk |
Add struct definition of the Elan MMCR registers (from jb@)
Put a CTASSERT() on the size of the struct.
Use the struct where it is easy to do so in elan_mmcr.c
Add the Elan specific hardware reset code (also from jb@).
|
| 123791 |
24-Dec-2003 |
peter |
GC the unused <machine/kse.h> file.
|
| 123580 |
17-Dec-2003 |
green |
Hey, how about we NOT make modules crash 486s?
|
| 123431 |
11-Dec-2003 |
jeff |
- Add the mp_topology() function to mp_machdep.c. This function builds up
the smp_topology structure to reflect the layout of HTT enabled machines.
- Add a prototype for mp_topology() in smp.h
|
| 123406 |
10-Dec-2003 |
jhb |
Delete old and unused APIC_IRQ defines.
|
| 123368 |
10-Dec-2003 |
obrien |
Add just enough of i386/include/pcvt_ioctl.h to amd64/include/pcvt_ioctl.h
such that 'ispcvt' can build. Unforunately 'ispcvt' is needed in order for
/etc/rc.d/syscons to run. This fixes the bug where I could not get my
keymap effective at boot.
|
| 123288 |
08-Dec-2003 |
obrien |
Move the bktr(4) <arch>/include/ioctl_{bt848,meteor}.h files to dev/bktr
as these ioctl's aren't MD. This also means they are installed in
/usr/include/dev/bktr now. Also provide compatability wrappers for
where these headers lived in 4.x.
|
| 123266 |
07-Dec-2003 |
alc |
Don't remove the virtual-to-physical mapping when an sf_buf is freed.
Instead, allow the mapping to persist, but add the sf_buf to a free list.
If a later sendfile(2) or zero-copy send resends the same physical page,
perhaps with the same or different contents, then the mapping overhead is
avoided and the sf_buf is simply removed from the free list.
In other words, the i386 sf_buf implementation now behaves as a cache of
virtual-to-physical translations using an LRU replacement policy on
inactive sf_bufs. This is similar in concept to a part of
http://www.cs.princeton.edu/~yruan/debox/ patch, but much simpler in
implementation. Note: none of this is required on alpha, amd64, or ia64.
They now use their direct virtual-to-physical mapping to avoid any
emphemeral mapping overheads in their sf_buf implementations.
|
| 123223 |
07-Dec-2003 |
imp |
Ooops. These are still used by the bktr driver. David O'Brien has
plans for dealing, but I'll let him deal.
Pointy hat to: imp@
|
| 123213 |
07-Dec-2003 |
imp |
Remote meteor driver. It hasn't compiled in over 3 years. If someone
makes it compile again, and can test it, we can restore the driver to
the tree.
|
| 123158 |
05-Dec-2003 |
imp |
File forgotten in the cx shuffle.
Pointed out by: Roman Kurakin
Approved by: re@ <scottl> (under go ahead and commit new cx approval)
|
| 123120 |
03-Dec-2003 |
imp |
Updated cx driver commit part 1: bring in the new kernel driver.
This is the vastly updated cx drvier from Roman Kurakin <rik@cronyx.ru>
who has been patiently waiting for this update for sometime.
The driver is mostly a rewrite from the version we have in the tree.
While some similarities remain, losing the little history that the old
driver has is not a big loss, and the re@ felt it was easier this way (less
error prone).
The userland parts of this update will be committed shortly.
The driver is not connected to the build yet. I want to make sure I
don't break any platform at any time, so I want to test that with
these files in the tree before I continue (on the off chance I'm
forgetting a file).
I changed the DEBUG macro to CX_DEBUG from the code that was submitted
(to not break when we go to building with opt_global.h after the
release), as well adding $FreeBSD$.
Submitted by: Roman Kurakin
Approved by: re@ <scottl>
|
| 122931 |
20-Nov-2003 |
peter |
MFamd64: use a less compiler-intensive MD implementation of 'curthread'
so that the compiler doesn't have to do so much work.
Approved by: re (jhb)
|
| 122860 |
17-Nov-2003 |
alc |
- Change the i386's sf_buf implementation so that it never allocates
more than one sf_buf for one vm_page. To accomplish this, we add
a global hash table mapping vm_pages to sf_bufs and a reference
count to each sf_buf. (This is similar to the patches for RELENG_4
at http://www.cs.princeton.edu/~yruan/debox/.)
For the uninitiated, an sf_buf is nothing more than a kernel virtual
address that is used for temporary virtual-to-physical mappings by
sendfile(2) and zero-copy sockets. As such, there is no reason for
one vm_page to have several sf_bufs mapping it. In fact, using more
than one sf_buf for a single vm_page increases the likelihood that
sendfile(2) blocks, hurting throughput.
(See http://www.cs.princeton.edu/~yruan/debox/.)
|
| 122833 |
17-Nov-2003 |
bde |
Fixed pedantic warnings for statement-expressions using __extension__
and by not using a statement-expression for the non-expression
__PCPU_SET().
|
| 122829 |
17-Nov-2003 |
bde |
Fixed a pedantic syntax error (a stray semicolon at the end of
PCPU_MD_FIELDS).
|
| 122827 |
17-Nov-2003 |
bde |
Fixed pedantic syntax errors. Many macros didn't permit a semicolon after
their invocation in the !KLD_MODULE case, but a semicolon is provided after
all invocations and is required in the KLD_MODULE case.
|
| 122826 |
17-Nov-2003 |
bde |
Avoid a warning for compiling with `gcc -Wbad-function cast'. (This
is the warning that points to the bug in `(char *)malloc(...)' where
malloc() is implicitly declared as returning int. We do similar things
here, but they work because u_int is the same as uintptr_t on i386's.)
|
| 122780 |
16-Nov-2003 |
alc |
- Modify alpha's sf_buf implementation to use the direct virtual-to-
physical mapping.
- Move the sf_buf API to its own header file; make struct sf_buf's
definition machine dependent. In this commit, we remove an
unnecessary field from struct sf_buf on the alpha, amd64, and ia64.
Ultimately, we may eliminate struct sf_buf on those architecures
except as an opaque pointer that references a vm page.
|
| 122771 |
16-Nov-2003 |
bde |
Localized the cy driver's locking.
|
| 122711 |
14-Nov-2003 |
peter |
Convert a couple of pointers to integers for source compatability with
amd64.
|
| 122710 |
14-Nov-2003 |
peter |
Whitespace nit (sorry, couldn't help it)
|
| 122690 |
14-Nov-2003 |
jhb |
Shuffle the APIC interrupt vectors around a bit:
- Move the IPI and local APIC interrupt vectors up into the 0xf0 - 0xff
range. The pmap lazyfix IPI was reordered down next to the TLB
shootdowns to avoid conflicting with the spurious interrupt vector.
- Move the base of APIC interrupts up 16 so that the first 16 APIC
interrupts do not overlap the vectors used by the ATPIC.
- Remove bogus interrupt vector reservations for LINT[01].
- Now that 0xc0 - 0xef are available, use them for device interrupts.
This increases the number of APIC device interrupts to 191.
- Increase the system-wide number of global interrupts to 191 to catch up
to more APIC interrupts.
Requested by: peter (2)
|
| 122617 |
13-Nov-2003 |
jhb |
Fix a typo.
|
| 122572 |
12-Nov-2003 |
jhb |
- Move manipulation of td_intr_nesting_level out of assembly interrupt
vector stubs and into the C functions they call.
- Move disabling and EOIing of interrupt sources out of PIC driver entry
points and into intr_execute_handlers(). Intr_execute_handlers() only
disables a source for an interrupt if it is a stray interrupt or has
threaded handlers. Sources with fast handlers no longer disable (mask)
the source while executing the handlers.
- Move the setting of clkintr_pending into intr_execute_handlers() and set
the variable for any interrupt source with a vector of 0. (Should only
be true for IRQ 0.) This fixes clkintr_pending in the NO_MIXED_MODE
case.
- Implement lapic_eoi() and use it to implement ioapic_eoi_source().
- Rename atpic_sched_ithd() to atpic_handle_intr() since it is used to
handle all atpic interrupts and not just threaded ones.
Inspired by: peter's changes to amd64 in p4 (1)
Requested by: bde (2)
|
| 122284 |
08-Nov-2003 |
alc |
- Similar to post-PAE RELENG_4 split pmap_pte_quick() into two cases,
pmap_pte() and pmap_pte_quick(). The distinction being based upon the
locks that are held by the caller. When the given pmap is not the
current pmap, pmap_pte() should be used when Giant is held and
pmap_pte_quick() should be used when the vm page queues lock is held.
- When assigning to PMAP1 or PMAP2, include PG_A anf PG_M.
- Reenable the inlining of pmap_is_current().
In collaboration with: tegge
|
| 122266 |
07-Nov-2003 |
scottl |
Document the lockfunc and lockfuncarg arguments to bus_dma_tag_create() in
the busdma headers.
|
| 122154 |
05-Nov-2003 |
anholt |
Spelling and grammar fixes.
PR: kern/54658
Submitted by: Roderick van Domburg <r.s.a.vandomburg@student.utwente.nl>
|
| 122012 |
03-Nov-2003 |
jhb |
Remove old APIC header.
|
| 121999 |
03-Nov-2003 |
jhb |
Catch up to interrupt code changes.
|
| 121996 |
03-Nov-2003 |
jhb |
New i386 SMP code:
- The MP code no longer knows anything specific about an MP Table.
Instead, the local APIC code adds CPUs via the cpu_add() function when
a local APIC is enumerated by an APIC enumerator.
- Don't divide the argument to mp_bootaddress() by 1024 just so that we
can turn around and mulitply it by 1024 again.
- We no longer panic if SMP is enabled but we are booted on a UP machine.
- init_secondary(), the asm code between init_secondary() and ap_init()
in mpboot.s and ap_init() have all been merged together in C into
init_secondary().
- We now use the cpuid feature bits to determine if we should enable
PSE, PGE, or VME on each AP.
- Due to the change in the implementation of critical sections, acquire
the SMP TLB mutex around a slightly larger chunk of code for TLB
shootdowns.
- Remove some of the debug code from the original SMP implementation
that is no longer used or no longer applies to the new APIC code.
- Use a temporary hack to disable the ACPI module until the SMP code has
been further reorganized to allow ACPI to work as a module again.
- Add a DDB command to dump the interesting contents of the IDT.
|
| 121991 |
03-Nov-2003 |
jhb |
Add the MP Table APIC enumerator. This code uses the BIOS MP Table to
enumerate I/O APICs as well as local APICs. It also provides Host-PCI
and PCI-PCI bridge drivers to use the MP Table to route PCI interrupts.
|
| 121986 |
03-Nov-2003 |
jhb |
New APIC support code:
- The apic interrupt entry points have been rewritten so that each entry
point can serve 32 different vectors. When the entry is executed, it
uses one of the 32-bit ISR registers to determine which vector in its
assigned range was triggered. Thus, the apic code can support 159
different interrupt vectors with only 5 entry points.
- We now always to disable the local APIC to work around an errata in
certain PPros and then re-enable it again if we decide to use the APICs
to route interrupts.
- We no longer map IO APICs or local APICs using special page table
entries. Instead, we just use pmap_mapdev(). We also no longer
export the virtual address of the local APIC as a global symbol to
the rest of the system, but only in local_apic.c. To aid this, the
APIC ID of each CPU is exported as a per-CPU variable.
- Interrupt sources are provided for each intpin on each IO APIC.
Currently, each source is given a unique interrupt vector meaning that
PCI interrupts are not shared on most machines with an I/O APIC.
That mapping for interrupt sources to interrupt vectors is up to the
APIC enumerator driver however.
- We no longer probe to see if we need to use mixed mode to route IRQ 0,
instead we always use mixed mode to route IRQ 0 for now. This can be
disabled via the 'NO_MIXED_MODE' kernel option.
- The npx(4) driver now always probes to see if a built-in FPU is present
since this test can now be performed with the new APIC code. However,
an SMP kernel will panic if there is more than one CPU and a built-in
FPU is not found.
- PCI interrupts are now properly routed when using APICs to route
interrupts, so remove the hack to psuedo-route interrupts when the
intpin register was read.
- The apic.h header was moved to apicreg.h and a new apicvar.h header
that declares the APIs used by the new APIC code was added.
|
| 121984 |
03-Nov-2003 |
jhb |
Add a per-thread variable for saving the state of eflags to support the
critical section code.
|
| 121982 |
03-Nov-2003 |
jhb |
New device interrupt code. This defines an interrupt source abstraction
that provides methods via a PIC driver to do things like mask a source,
unmask a source, enable it when the first interrupt handler is added, etc.
The interrupt code provides a table of interrupt sources indexed by IRQ
numbers, or vectors. These vectors are what new-bus uses for its IRQ
resources and for bus_setup_intr()/bus_teardown_intr(). The interrupt
code then maps that vector a given interrupt source object. When an
interrupt comes in, the low-level interrupt code looks up the interrupt
source for the source that triggered the interrupt and hands it off to
this code to execute the appropriate handlers.
By having an interrupt source abstraction, this allows us to have different
types of interrupt source providers within the shared IRQ address space.
For example, IRQ 0 may map to pin 0 of the master 8259A PIC, IRQs 1
through 60 may map to pins on various I/O APICs, and IRQs 120 through
128 may map to MSI interrupts for various PCI devices.
|
| 121981 |
03-Nov-2003 |
jhb |
- Always use 256 IDT entries since it is now a runtime decison as to how
many entries we use.
- Add a constant IDT_IO_INTS for the first IDT entry used for device
interrupts.
|
| 121978 |
03-Nov-2003 |
jhb |
Define IDTVEC() and TRAP() assembly macros so that they can be shared
with several files.
|
| 121977 |
03-Nov-2003 |
jhb |
Revert the critical section implementation to disable interrupts via
cli/sti now that we support many more than 32 interrupt sources.
|
| 121754 |
30-Oct-2003 |
jhb |
Always export r_gdt and r_idt and give them extern declarations in
machine/segments.h.
|
| 121481 |
24-Oct-2003 |
jhb |
A few whitespace and comment tweaks.
|
| 120831 |
06-Oct-2003 |
bms |
Move pmap_resident_count() from the MD pmap.h to the MI pmap.h.
Add a definition of pmap_wired_count().
Add a definition of vmspace_wired_count().
Reviewed by: truckman
Discussed with: peter
|
| 120654 |
01-Oct-2003 |
peter |
Commit Bosko's patch to clean up the PSE/PG_G initialization to and
avoid problems with some Pentium 4 cpus and some older PPro/Pentium2
cpus. There are several problems, some documented in Intel errata.
This patch:
1) moves the kernel to the second page in the PSE case. There is an
errata that says that you Must Not point a 4MB page at physical
address zero on older cpus. We avoided bugs here due to sheer luck.
2) sets up PSE page tables right from the start in locore, rather than
trying to switch from 4K to 4M (or 2M) pages part way through the boot
sequence at the same time that we're messing with PG_G.
For some reason, the pmap work over the last 18 months seems to tickle
the problems, and the PAE infrastructure changes disturb the cpu
bugs even more.
A couple of people have reported a problem with APM bios calls during
boot. I'll work with people to get this resolved.
Obtained from: bmilekic
|
| 120620 |
01-Oct-2003 |
jeff |
- Add ss2_pagezero() for zeroing pages using the movnti instruction. This
instruction is enabled with SSE2 but does not use SSE registers. It is a
"non-temporal" move which bypasses the cache and does not dirty lines.
|
| 120602 |
30-Sep-2003 |
jeff |
- On my Pentium4-M laptop, invalpg takes ~1100 cycles if the page is found in
the TLB and ~1600 if it is not. Therefore, it is more effecient to
invalidate the TLB after operations that use CMAP rather than before.
- So that the tlb is invalidated prior to switching off of a processor, we
must change the switchin functions to switchout functions.
- Remove td_switchout from the thread and move it to the x86 pcb.
- Move the code that calls switchout into swtch.s. These changes make this
optimization truely x86 specific.
|
| 120424 |
25-Sep-2003 |
alc |
- Eliminate the pte object.
- Use kmem_alloc_nofault() rather than kmem_alloc_pageable() to allocate
KVA space for the page directory page(s). Submitted by: tegge
|
| 120422 |
25-Sep-2003 |
peter |
Add sysentvec->sv_fixlimits() hook so that we can catch cases on 64 bit
systems where the data/stack/etc limits are too big for a 32 bit process.
Move the 5 or so identical instances of ELF_RTLD_ADDR() into imgact_elf.c.
Supply an ia32_fixlimits function. Export the clip/default values to
sysctl under the compat.ia32 heirarchy.
Have mmap(0, ...) respect the current p->p_limits[RLIMIT_DATA].rlim_max
value rather than the sysctl tweakable variable. This allows mmap to
place mappings at sensible locations when limits have been reduced.
Have the imgact_elf.c ld-elf.so.1 placement algorithm use the same
method as mmap(0, ...) now does.
Note that we cannot remove all references to the sysctl tweakable
maxdsiz etc variables because /etc/login.conf specifies a datasize
of 'unlimited'. And that causes exec etc to fail since it can no
longer find space to mmap things.
|
| 120404 |
24-Sep-2003 |
imp |
Per TRB vote: restore the aquire_timer0 and associated goo. This will
be gone in FreeBSD 6, so put BURN_BRIDGES around it. The TRB also
felt that if something better comes along sooner, it can be used to
replace this code.
Delayed by: BSDcon and subsequent disk crash.
|
| 120375 |
23-Sep-2003 |
nyan |
Implement the bus_space_map() function to allocate resources and initialize
a bus_handle, but currently it does only initializing a bus_handle.
|
| 120344 |
22-Sep-2003 |
peter |
Microoptimization to allow the compiler to evaluate ntohl() etc on
known constants at compile time rather than at run time. We have a number
of nasty hacks around the place to cache ntohl() of constants (eg: nfs).
This change allows the compiler to compile-time evaluate ntohl(1) as
0x01000000 rather than having to emit assembler code to do it. This
has other smaller flow-on effects because the compiler can see that
ntohl(constant) itself has a constant value now and can propagate the
compile time evaluation.
Obtained from: Ideas from NetBSD and Linux, and some code from NetBSD
|
| 120205 |
18-Sep-2003 |
jhb |
Fix a busted constant related to PCI configuration acess method #1. The
reserved bits in the port that must be zero are 24:30, not 20:30. Bits
16:23 are used to set the bus number. This meant that when we tested for
config mechanism #1, if the previous PCI configuration transaction sent
used a bus number greater than 15, one of the bits in 20:23 would be
non-zero and we would fail to use config mechanism #1 and thus fail to see
that PCI existed on the machine at all.
Obtained from: Shanley's PCI System Architecture book
Tested by: des
Proxied through: njl
|
| 119941 |
10-Sep-2003 |
jhb |
Remove an XXX comment by using the per CPU mask added after this comment
was added.
|
| 119940 |
10-Sep-2003 |
jhb |
Add a acpi_SetDefaultIntrModel() method to allow drivers to set the
interrupt model prior to the acpi0 device being probed and attached.
|
| 119938 |
10-Sep-2003 |
jhb |
Fix a typo.
|
| 119935 |
10-Sep-2003 |
jhb |
Add constants for entries in the IDT and use those instead of magic
numbers.
|
| 119628 |
01-Sep-2003 |
kan |
Standardize idempotentcy ifdefs. Consistently use _MACHINE_VARARGS_H_
symbol.
|
| 119452 |
25-Aug-2003 |
obrien |
Fix copyright comment & FBSDID style nits.
Requested by: bde
|
| 118990 |
16-Aug-2003 |
marcel |
Further cleanup <machine/cpu.h> and <machine/md_var.h>: move the MI
prototypes of cpu_halt(), cpu_reset() and swi_vm() from md_var.h to
cpu.h. This affects db_command.c and kern_shutdown.c.
ia64: move all MD prototypes from cpu.h to md_var.h. This affects
madt.c, interrupt.c and mp_machdep.c. Remove is_physical_memory().
It's not used (vm_machdep.c).
alpha: the MD prototypes have been left in cpu.h with a comment
that they should be there. Moving them is left for later. It was
expected that the impact would be significant enough to be done in
a seperate commit.
powerpc: MD prototypes left in cpu.h. Comment added.
Suggested by: bde
Tested with: make universe (pc98 incomplete)
|
| 118956 |
15-Aug-2003 |
phk |
remove acquire_timer0() and release_timer0() and related stuff.
|
| 118954 |
15-Aug-2003 |
jhb |
- Add macros describing some new MSR's in the Pentium 4 and some older
MSR's in the original Pentium.
- Add macros describing the bit fields in the APICBASE MSR.
|
| 118953 |
15-Aug-2003 |
jhb |
- Fix a duplicated typo.
- Add a macro for the logical shift needed to extract an APIC ID from
either from the local APIC ICR Hi register or the APIC ID registers of
the local and IO APICs.
|
| 118848 |
12-Aug-2003 |
imp |
Expand inline the relevant parts of src/COPYRIGHT for Matt Dillon's
copyrighted files.
Approved by: Matt Dillon
|
| 118832 |
12-Aug-2003 |
ps |
Halted CPU's should not accumulate time.
Reviewed by: jhb
|
| 118559 |
06-Aug-2003 |
bde |
Backed out previous commit. This restores the warning about pessimized
(short) types for the port arg of inb() (rev.1.56). The warning started
working for u_short types with gcc-3.3. The pessimizations exposed
by this been fixed except for the cx and oltr drivers where the breakage
of the warning has been pushed to the drivers.
|
| 118550 |
06-Aug-2003 |
phk |
Dont initialize a TSC timecounter until we know if it is broken or not.
|
| 118444 |
04-Aug-2003 |
jhb |
- GC unused cpu_thread_link().
- Move the enabling of interrupts out of assembly and into C a few
instructions later at cpu_critical_fork_exit(). This puts more of the
MD critical section implementation under the MD critical section API
making it easier to test and develop alternative implementations.
|
| 118440 |
04-Aug-2003 |
julian |
Allow foot shooting as Linux emulation needs it.
Also change "Auto mode" to use a "special" value
instead of 0, and define and document it.
I had thought libpthread had already been switched to use auto mode but
it appears that patch hasn't been committed yet.
Discussed with: Davidxu
|
| 118382 |
03-Aug-2003 |
obrien |
Style sync.
|
| 118188 |
30-Jul-2003 |
peter |
Detour via (void *) to defeat gcc's strict-aliasing warnings when using
-O2 or -Os (such as 'make release').
This commit brought to you by the warning:
dereferencing type-punned pointer will break strict-aliasing rules
|
| 118081 |
27-Jul-2003 |
mux |
- Introduce a new busdma flag BUS_DMA_ZERO to request for zero'ed
memory in bus_dmamem_alloc(). This is possible now that
contigmalloc() supports the M_ZERO flag.
- Remove the locking of Giant around calls to contigmalloc() since
contigmalloc() now grabs Giant itself.
|
| 117937 |
23-Jul-2003 |
phk |
Stop GCC from whining when people use a 16 bit port number for inb() and outb()
|
| 117928 |
23-Jul-2003 |
jhb |
Use macros from apic.h to when writing to the ICR to send IPIs to startup
APs rather than magic numbers.
Tested by: scottl
|
| 117927 |
23-Jul-2003 |
jhb |
Add a new macro APIC_ICRLO_RESV_MASK that contains all of the reserved
fields in the low 32 bits of the local APIC ICR register. Use this macro
in place of APIC_RESV2_MASK when masking off existing bits from the ICR
when writing to it to send an IPI.
Tested by: scottl
|
| 117911 |
23-Jul-2003 |
peter |
Remove _ARCH_INDIRECT, it was the glue to enable having both hardware
and software versions of the floating point code in libm. The runtime
selection was done by reading the hw.floatingpoint sysctl via
__get_hw_float().
|
| 117870 |
22-Jul-2003 |
peter |
Initiate de-orbit burn for fpu-less operation. 386+387 is still
theoretically supportable, but you'd really be happier with FreeBSD 2.1.8
on it.
|
| 117385 |
10-Jul-2003 |
markm |
Protect lint(1) from a #error.
|
| 117372 |
10-Jul-2003 |
peter |
unifdef -DLAZY_SWITCH and start to tidy up the associated glue.
|
| 117126 |
01-Jul-2003 |
scottl |
Mega busdma API commit.
Add two new arguments to bus_dma_tag_create(): lockfunc and lockfuncarg.
Lockfunc allows a driver to provide a function for managing its locking
semantics while using busdma. At the moment, this is used for the
asynchronous busdma_swi and callback mechanism. Two lockfunc implementations
are provided: busdma_lock_mutex() performs standard mutex operations on the
mutex that is specified from lockfuncarg. dftl_lock() is a panic
implementation and is defaulted to when NULL, NULL are passed to
bus_dma_tag_create(). The only time that NULL, NULL should ever be used is
when the driver ensures that bus_dmamap_load() will not be deferred.
Drivers that do not provide their own locking can pass
busdma_lock_mutex,&Giant args in order to preserve the former behaviour.
sparc64 and powerpc do not provide real busdma_swi functions, so this is
largely a noop on those platforms. The busdma_swi on is64 is not properly
locked yet, so warnings will be emitted on this platform when busdma
callback deferrals happen.
If anyone gets panics or warnings from dflt_lock() being called, please
let me know right away.
Reviewed by: tmm, gibbs
|
| 117006 |
28-Jun-2003 |
jeff |
- Construct a cpu topology map for Hyper Threading systems so that ULE may
take advantage of them.
|
| 116930 |
27-Jun-2003 |
peter |
Tidy up leftover lazy_switch instrumentation that is no longer needed.
This cleans up some #ifdef hell.
|
| 116926 |
27-Jun-2003 |
peter |
Fix the false IPIs on smp when using LAZY_SWITCH caused by pmap_activate()
not releasing the pm_active bit in the old pmap.
|
| 116355 |
14-Jun-2003 |
alc |
Migrate the thread stack management functions from the machine-dependent
to the machine-independent parts of the VM. At the same time, this
introduces vm object locking for the non-i386 platforms.
Two details:
1. KSTACK_GUARD has been removed in favor of KSTACK_GUARD_PAGES. The
different machine-dependent implementations used various combinations
of KSTACK_GUARD and KSTACK_GUARD_PAGES. To disable guard page, set
KSTACK_GUARD_PAGES to 0.
2. Remove the (unnecessary) clearing of PG_ZERO in vm_thread_new. In
5.x, (but not 4.x,) PG_ZERO can only be set if VM_ALLOC_ZERO is passed
to vm_page_alloc() or vm_page_grab().
|
| 115954 |
07-Jun-2003 |
jhb |
Reinstate the bug fix in revision 1.2 as it is correct. The errors I saw
on my laptop after this change were the result of a bug in the ACPICA code.
|
| 115908 |
06-Jun-2003 |
jhb |
- Rename nexus_pcib to legacy_pcib. I've been meaning to do this for a
while after the legacy device was added since this driver hangs from
legacy and not nexus.
- Make several methods non-static so they can be reused in a mptable
host -> pci bridge driver that will be added at a later date.
- Let legacy_pcib() use pcibios_pcib_route_interrupt() directly instead of
wrapping it in a private function. Originally, I thought I was going to
have the nexus_pcib() driver make a runtime APIC vs. 8259A check and call
the appropriate routing method (MPTable vs. PIR) that way, but it ended
up being cleaner to make nexus_pcib() just work with PIR and have a
separate host -> pci bridge driver for the mptable/apic case.
|
| 115905 |
06-Jun-2003 |
jhb |
- Document the thermal and performance counter LVT entries in the local
APIC.
- Add a lvt_thermal member to the LAPIC struct.
- Add constants for the SMI and INIT LVT delivery modes.
|
| 115779 |
03-Jun-2003 |
jhb |
Bah, revert the previous commit for the time being due to inadequate testing
on my part. The output asm looks correct with the previous commit in place
and it works on amd64, but on my laptop I got a spew of AE_BAD_PARAMETER
errors trying to unlock the acpi global lock.
|
| 115775 |
03-Jun-2003 |
jhb |
Fix the asm constraints so that we use the correct constants when acquiring
and releasing ACPI global locks instead of (ab)using the pointers to those
locks as the constants. Also, rather than require that the address of
the lock be stored in a register, use a memory constraint allowing the
memory address to be used directly.
Noticed by: peter
|
| 115683 |
02-Jun-2003 |
obrien |
Use __FBSDID().
|
| 115671 |
02-Jun-2003 |
obrien |
Don't use ## to concatinate to two things that don't together make a C token.
Two tokens that don't together form a vaid preprocssor token cannot be
pasted together using ANSI-C token concatinatation. GCC 3.2's cpp, at least,
produces the desired result w/o using "##".
|
| 115659 |
02-Jun-2003 |
obrien |
Use C99 compatable asm statements.
|
| 115416 |
30-May-2003 |
hmp |
Rename BUS_DMAMEM_NOSYNC to BUS_DMA_COHERENT.
The current name is confusing, because it indicates to
the client that a bus_dmamap_sync() operation is not
necessary when the flag is specified, which is wrong.
The main purpose of this flag is to hint the underlying
architecture that DMA memory should be mapped in a coherent
way, but the architecture can ignore it. But if the
architecture does supports coherent mapping of memory, then
it makes bus_dmamap_sync() calls cheap.
This flag is the same as the one in NetBSD's Bus DMA.
Reviewed by: gibbs, scottl, des (implicitly)
Approved by: re@ (jhb)
|
| 115343 |
27-May-2003 |
scottl |
Bring back bus_dmasync_op_t. It is now a typedef to an int, though the
BUS_DMASYNC_ definitions remain as before. The does not change the ABI,
and reverts the API to be a bit more compatible and flexible. This has
survived a full 'make universe'.
Approved by: re (bmah)
|
| 115316 |
26-May-2003 |
scottl |
De-orbit bus_dmamem_alloc_size(). It's a hack and was never used anyways.
No need for it to pollute the 5.x API any further.
Approved by: re (bmah)
|
| 115164 |
19-May-2003 |
kan |
sys/sys/limits.h:
- Fix visibilty test for LONG_BIT and WORD_BIT. `#if defined(__FOO_VISIBLE)'
is alays wrong because __FOO_VISIBLE is always defined (to 0 for
invisibility).
sys/<arch>/include/limits.h
sys/<arch>/include/_limits.h:
- Style fixes.
Submitted by: bde
Reviewed by: bsdmike
Approved by: re (scottl)
|
| 115016 |
15-May-2003 |
alc |
Initialize logical_cpus_mask when the logical CPUs are enumerated in
the mptable. (Previously, logical_cpus_mask was only initialized if
the hyperthreading fixup was executed.)
Approved by: re (jhb)
Reviewed by: ps
|
| 114678 |
04-May-2003 |
kan |
Style fixes.
Remove DBL_DIG, DBL_MIN, DBL_MAX and their FLT_ counterparts, they
were marked for deprecation ever since SUSv1 at least.
Only define ULLONG_MIN/MAX and LLONG_MAX if long long type is
supported.
Restore a lost comment in MI _limits.h file and remove it from
sys/limits.h where it does not belong.
|
| 114377 |
01-May-2003 |
peter |
Hack to enable getting two different elf32 and elf64 loaders in the
same i386 loader binary.
|
| 114376 |
01-May-2003 |
peter |
<b30> is 'IA64' - ie: you're running on an ia64 in 32 bit mode.
|
| 114373 |
01-May-2003 |
peter |
Slight reorg and added AMD64 support. A couple of the MODINFOMD_* values
that were added to sparc64 and later powerpc, really should have been in
the MI area. But changing that now with insufficient preperation will
just cause too much pain.
Move MD_FETCH() to the MI sys/linker.h file to avoid another two copies
of it.
|
| 114348 |
01-May-2003 |
peter |
KPT_MIN_ADDRESS and KPT_MAX_ADDRESS are not used anywhere. And if they
were, they are not safe to use outside of the kernel since these values
can change at kernel compile time - ie: we do not want them compiled into
userland binaries.
|
| 114216 |
29-Apr-2003 |
kan |
Deprecate machine/limits.h in favor of new sys/limits.h.
Change all in-tree consumers to include <sys/limits.h>
Discussed on: standards@
Partially submitted by: Craig Rodrigues <rodrigc@attbi.com>
|
| 114177 |
28-Apr-2003 |
jake |
Use inlines for loading and storing page table entries. Use cmpxchg8b for
the PAE case to ensure idempotent 64 bit loads and stores.
Sponsored by: DARPA, Network Associates Laboratories
|
| 113941 |
23-Apr-2003 |
kan |
Add a new sys/limits.h file which in turn depends on machine/_limits.h
to get actual constant values. This is in preparation for machine/limits.h
retirement.
Discussed on: standards@
Submitted by: Craig Rodrigues <rodrigc@attbi.com> (*)
Modified by: kan
|
| 113728 |
20-Apr-2003 |
davidxu |
Backout my last commit.
Requested by: bde
|
| 113704 |
19-Apr-2003 |
davidxu |
Don't return garbage in high 16 bits.
|
| 113347 |
10-Apr-2003 |
mux |
Change the operation parameter of bus_dmamap_sync() from an
enum to an int and redefine the BUS_DMASYNC_* constants as
flags. This allows us to specify several operations in one
call to bus_dmamap_sync() as in NetBSD.
|
| 113266 |
08-Apr-2003 |
jake |
Remove invalid cast to vm_offset_t to avoid truncating a physical address
when doing pmap_kextract on a 2MB page.
Spotted by: peter
Sponsored by: DARPA, Network Associates Laboratories
|
| 113225 |
07-Apr-2003 |
jake |
Better fix for previous previous which still allows the 4megs of kva at
the top of the address space to be reclaimed. The problem is that with
the APTD gone the mapable kernel address space runs right to the end of
the 32 bit address space. As a max this is 0x100000000, which can't be
represented in 32 bits, so we have to use ptd entry n-1 and pte offset
n-1, instead of ptd entry n and pte offset 0. There's still 1 page we
can't use, but we gain just under 4 megs of kva (8 megs with PAE).
Sponsored by: DARPA, Network Associates Laboratories
|
| 113090 |
04-Apr-2003 |
des |
Define ovbcopy() as a macro which expands to the equivalent bcopy() call,
to take care of the KAME IPv6 code which needs ovbcopy() because NetBSD's
bcopy() doesn't handle overlap like ours.
Remove all implementations of ovbcopy().
Previously, bzero was a function pointer on i386, to save a jmp to
bzero_vector. Get rid of this microoptimization as it only confuses
things, adds machine-dependent code to an MD header, and doesn't really
save all that much.
This commit does not add my pagezero() / pagecopy() code.
|
| 113083 |
04-Apr-2003 |
phk |
Libdisk does not need to include <sys/diskslice.h> any more.
Move the remaining bits of <sys/diskslice.h> to <i386/include/bootinfo.h>
Move i386/pc98 specific bits from <sys/reboot.h> to
<i386/include/bootinfo.h> as well.
Adjust includes in sys/boot accordingly.
|
| 113064 |
04-Apr-2003 |
jake |
Bandaid fix for previous commit while I figure out why it broke. This
caused crashes early in boot on i386 UP machines.
Reported by: phk
Pointy hat to: jake
|
| 113040 |
03-Apr-2003 |
jake |
- Removed APTD and associated macros, it is no longer used.
BANG BANG BANG etc.
Sponsored by: DARPA, Network Associates Laboratories
|
| 112993 |
02-Apr-2003 |
peter |
Commit a partial lazy thread switch mechanism for i386. it isn't as lazy
as it could be and can do with some more cleanup. Currently its under
options LAZY_SWITCH. What this does is avoid %cr3 reloads for short
context switches that do not involve another user process. ie: we can
take an interrupt, switch to a kthread and return to the user without
explicitly flushing the tlb. However, this isn't as exciting as it could
be, the interrupt overhead is still high and too much blocks on Giant
still. There are some debug sysctls, for stats and for an on/off switch.
The main problem with doing this has been "what if the process that you're
running on exits while we're borrowing its address space?" - in this case
we use an IPI to give it a kick when we're about to reclaim the pmap.
Its not compiled in unless you add the LAZY_SWITCH option. I want to fix a
few more things and get some more feedback before turning it on by default.
This is NOT a replacement for Bosko's lazy interrupt stuff. This was more
meant for the kthread case, while his was for interrupts. Mine helps a
little for interrupts, but his helps a lot more.
The stats are enabled with options SWTCH_OPTIM_STATS - this has been a
pseudo-option for years, I just added a bunch of stuff to it.
One non-trivial change was to select a new thread before calling
cpu_switch() in the first place. This allows us to catch the silly
case of doing a cpu_switch() to the current process. This happens
uncomfortably often. This simplifies a bit of the asm code in cpu_switch
(no longer have to call choosethread() in the middle). This has been
implemented on i386 and (thanks to jake) sparc64. The others will come
soon. This is actually seperate to the lazy switch stuff.
Glanced at by: jake, jhb
|
| 112931 |
01-Apr-2003 |
phk |
Don't include <sys/buf.h> needlessly.
|
| 112841 |
30-Mar-2003 |
jake |
- Add support for PAE and more than 4 gigs of ram on x86, dependent on the
kernel opition 'options PAE'. This will only work with device drivers which
either use busdma, or are able to handle 64 bit physical addresses.
Thanks to Lanny Baron from FreeBSD Systems for the loan of a test machine
with 6 gigs of ram.
Sponsored by: DARPA, Network Associates Laboratories, FreeBSD Systems
|
| 112837 |
30-Mar-2003 |
jake |
- Remove invalid casts.
Sponsored by: DARPA, Network Associates Laboratories
|
| 112836 |
30-Mar-2003 |
jake |
- Convert all uses of pmap_pte and get_ptbase to pmap_pte_quick. When
accessing an alternate address space this causes 1 page table page at
a time to be mapped in, rather than using the recursive mapping technique
to map in an entire alternate address space. The recursive mapping
technique changes large portions of the address space and requires global
tlb flushes, which seem to cause problems when PAE is enabled. This will
also allow IPIs to be avoided when mapping in new page table pages using
the same technique as is used for pmap_copy_page and pmap_zero_page.
Sponsored by: DARPA, Network Associates Laboratories
|
| 112687 |
26-Mar-2003 |
ps |
Nuke options HTT infavor of machdep.hlt_logical_cpus tunable/sysctl.
This keeps the logical cpu's halted in the idle loop. By default
the logical cpu's are halted at startup. It is also possible to
halt any cpu in the idle loop now using machdep.hlt_cpus.
Examples of how to use this:
machdep.hlt_cpus=1 halt cpu0
machdep.hlt_cpus=2 halt cpu1
machdep.hlt_cpus=4 halt cpu2
machdep.hlt_cpus=3 halt cpu0,cpu1
Reviewed by: jhb, peter
|
| 112569 |
25-Mar-2003 |
jake |
- Add vm_paddr_t, a physical address type. This is required for systems
where physical addresses larger than virtual addresses, such as i386s
with PAE.
- Use this to represent physical addresses in the MI vm system and in the
i386 pmap code. This also changes the paddr parameter to d_mmap_t.
- Fix printf formats to handle physical addresses >4G in the i386 memory
detection code, and due to kvtop returning vm_paddr_t instead of u_long.
Note that this is a name change only; vm_paddr_t is still the same as
vm_offset_t on all currently supported platforms.
Sponsored by: DARPA, Network Associates Laboratories
Discussed with: re, phk (cdevsw change)
|
| 112558 |
24-Mar-2003 |
mdodd |
Use __packed;
|
| 112350 |
17-Mar-2003 |
jhb |
Expand the APIC ID mask field of the ICR register to 8 bits intead of just
4 bits. This reportedly fixes booting on the SW7500CW2. Much thanks to
the submitter for tracking this down!
Submitted by: Brian Buchanan <brian@ncircle.com>
Reviewed by: peter
MFC after: 3 days
|
| 112312 |
16-Mar-2003 |
jake |
Made the prototypes for pmap_kenter and pmap_kremove MD. These functions
are machine dependent because they are not required to update the tlb when
mappings are added or removed, and doing so is machine dependent.
In addition, an implementation may require that pages mapped with pmap_kenter
have a backing vm_page_t, which is not necessarily true of all physical
pages, and so may choose to pass the vm_page_t to pmap_kenter instead of the
physical address in order to make this requirement clear.
|
| 112104 |
11-Mar-2003 |
jake |
Use bus_space_handle_t to represent host port and virtual addresses;
bus_addr_t may not be appropriate.
Sponsored by: DARPA, Network Associates Laboratories
|
| 111878 |
04-Mar-2003 |
jhb |
Wrap the hyperthreading support code with the HTT kernel option.
Hyperthreading support is now off unless the HTT option is added.
MFC-after: 3 days
|
| 111636 |
27-Feb-2003 |
alc |
Remove some long unused declarations. (For example, the PV flags have not
been used since revision 1.8, roughly nine years ago.)
|
| 111524 |
26-Feb-2003 |
mux |
Correctly set BUS_SPACE_MAXSIZE in all the busdma backends.
It was bogusly set to 64 * 1024 or 128 * 1024 because it was
bogusly reused in the BUS_DMAMAP_NSEGS definition.
|
| 111493 |
25-Feb-2003 |
jake |
- Added inlines pmap_is_current, pmap_is_alternate and pmap_set_alternate
for testing and setting the current and alternate address spaces.
- Changed PTDpde and APTDpde to arrays to support multiple page directory
pages.
ponsored by: DARPA, Network Associates Laboratories
|
| 111440 |
24-Feb-2003 |
jake |
- Removed UMAXPTDI and UMAXPTEOFF.
- Changed VM_MAXUSER_ADDRESS to be defined in terms of PTDPTDI. In order for
assumptions about the recursive page table map to work it must be the base
of the recursive map. Any pte offset that's not NPTEPG will break these
assumptions.
Sponsored by: DARPA, Network Associates Laboratories
|
| 111428 |
24-Feb-2003 |
nyan |
The mpbiosreason variable does not used for pc98.
|
| 111382 |
23-Feb-2003 |
tegge |
Allow machines with one CPU and a valid mp table to boot an SMP kernel.
|
| 111372 |
23-Feb-2003 |
jake |
Previous commit missed a 1 that should be NGPTD, and an NPDEPG that should
be NPDEPTD. Grumble.
Sponsored by: DARPA, Network Associates Laboratories
|
| 111363 |
23-Feb-2003 |
jake |
- Added macros NPGPTD, NBPTD, and NPDEPTD, for dealing with the size of the
page directory.
- Use these instead of the magic constants 1 or PAGE_SIZE where appropriate.
There are still numerous assumptions that the page directory is exactly
1 page.
Sponsored by: DARPA, Network Associates Laboratories
|
| 111299 |
23-Feb-2003 |
jake |
- Added macros PDESHIFT and PTESHIFT, use these instead of magic constants
in locore.
- Removed the macros PTESIZE and PDESIZE, use sizeof instead in C.
Sponsored by: DARPA, Network Associates Laboratories
|
| 111272 |
22-Feb-2003 |
alc |
The root of the splay tree maintained within the pm_pteobj always refers
to the last accessed pte page. Thus, the pm_ptphint is redundant and can
be removed.
|
| 111119 |
19-Feb-2003 |
imp |
Back out M_* changes, per decision of the TRB.
Approved by: trb
|
| 111068 |
18-Feb-2003 |
peter |
Initiate de-orbit burn for USE_PCI_BIOS_FOR_READ_WRITE. This has been
#if'ed out for a while. Complete the deed and tidy up some other bits.
We need to be able to call this stuff from outer edges of interrupt
handlers for devices that have the ISR bits in pci config space. Making
the bios code mpsafe was just too hairy. We had also stubbed it out some
time ago due to there simply being too much brokenness in too many systems.
This adds a leaf lock so that it is safe to use pci_read_config() and
pci_write_config() from interrupt handlers. We still will use pcibios
to do interrupt routing if there is no acpi.. [yes, I tested this]
Briefly glanced at by: imp
|
| 111002 |
16-Feb-2003 |
phk |
Remove #include <sys/dkstat.h>
|
| 110566 |
08-Feb-2003 |
mike |
Implement fpclassify():
o Add a MD header private to libc called _fpmath.h; this header
contains bitfield layouts of MD floating-point types.
o Add a MI header private to libc called fpmath.h; this header
contains bitfield layouts of MI floating-point types.
o Add private libc variables to lib/libc/$arch/gen/infinity.c for
storing NaN values.
o Add __double_t and __float_t to <machine/_types.h>, and provide
double_t and float_t typedefs in <math.h>.
o Add some C99 manifest constants (FP_ILOGB0, FP_ILOGBNAN, HUGE_VALF,
HUGE_VALL, INFINITY, NAN, and return values for fpclassify()) to
<math.h> and others (FLT_EVAL_METHOD, DECIMAL_DIG) to <float.h> via
<machine/float.h>.
o Add C99 macro fpclassify() which calls __fpclassify{d,f,l}() based
on the size of its argument. __fpclassifyl() is never called on
alpha because (sizeof(long double) == sizeof(double)), which is good
since __fpclassifyl() can't deal with such a small `long double'.
This was developed by David Schultz and myself with input from bde and
fenner.
PR: 23103
Submitted by: David Schultz <dschultz@uclink.Berkeley.EDU>
(significant portions)
Reviewed by: bde, fenner (earlier versions)
|
| 110370 |
05-Feb-2003 |
phk |
i386/i386/tsc.c was repo-copied from i386/isa/clock.c.
Remove all the stuff that does not relate to the TSC.
Change the calibration to use DELAY(1000000) rather than trying to check
it against the CMOS RTC, this drastically increases precision:
Using 25 samples on a Athlon 700MHz UP machine I find:
stddev min max average
CMOS 22200 Hz -74980 Hz 34301 Hz 704928721 Hz
DELAY 1805 Hz -1984 Hz 2678 Hz 704937583 Hz
(The difference between the two averages is not statistically significant.)
expressed in PPM of the frequency:
stddev min max
CMOS 31.49 PPM -106.37 PPM 48.66 PPM
DELAY 2.56 PPM 2.81 PPM 3.80 PPM
This code will not be used until a followup commit to sys/isa/clock.c
and sys/pc98/pc98/clock.c which will only happen after some field testing.
|
| 110368 |
05-Feb-2003 |
phk |
Make get_cyclecount() use binuptime() when no tsc is available: it is cheaper.
|
| 110296 |
03-Feb-2003 |
jake |
Split statclock into statclock and profclock, and made the method for driving
statclock based on profhz when profiling is enabled MD, since most platforms
don't use this anyway. This removes the need for statclock_process, whose
only purpose was to subdivide profhz, and gets the profiling clock running
outside of sched_lock on platforms that implement suswintr.
Also changed the interface for starting and stopping the profiling clock to
do just that, instead of changing the rate of statclock, since they can now
be separate.
Reviewed by: jhb, tmm
Tested on: i386, sparc64
|
| 110190 |
01-Feb-2003 |
julian |
Reversion of commit by Davidxu plus fixes since applied.
I'm not convinced there is anything major wrong with the patch but
them's the rules..
I am using my "David's mentor" hat to revert this as he's
offline for a while.
|
| 110039 |
29-Jan-2003 |
phk |
Make tsc_freq a 64bit quantity.
Inspired by: http://www.theinquirer.net/?article=7481
|
| 110030 |
29-Jan-2003 |
scottl |
Implement bus_dmamem_alloc_size() and bus_dmamem_free_size() as
counterparts to bus_dmamem_alloc() and bus_dmamem_free(). This allows
the caller to specify the size of the allocation instead of it defaulting
to the max_size field of the busdma tag.
This is intended to aid in converting drivers to busdma. Lots of
hardware cannot understand scatter/gather lists, which forces the
driver to copy the i/o buffers to a single contiguous region
before sending it to the hardware. Without these new methods, this
would require a new busdma tag for each operation, or a complex
internal allocator/cache for each driver.
Allocations greater than PAGE_SIZE are rounded up to the next
PAGE_SIZE by contigmalloc(), so this is not suitable for multiple
static allocations that would be better served by a single
fixed-length subdivided allocation.
Reviewed by: jake (sparc64)
|
| 109994 |
28-Jan-2003 |
jake |
Remove BDE_DEBUGGER.
Discussed with: bde
|
| 109898 |
26-Jan-2003 |
julian |
Fix KSE related patch.
Make it compile for the SMP case..
statclock_process() has changed prototypes.
|
| 109718 |
23-Jan-2003 |
peter |
Clean up some junk defines, and GC the TPR options.
|
| 109717 |
23-Jan-2003 |
peter |
Nuke CHEAP_TPR stuff, including LOPRIO_LEVEL (bogus) and ALLHWI_LEVEL
(which we never used). There is no need to tweak the TPR anymore and
only causes problems.
|
| 109700 |
22-Jan-2003 |
jhb |
- Move enable_sse()'s prototype to machine/md_var.h.
- Sort definition of cpu_* variables appropriately.
- Move cpu_fxsr out of the magic non-BSS set of variables and stick it in
the BSS along with hw_instruction_sse (make the latter static as well).
Submitted by: bde (partially)
|
| 109696 |
22-Jan-2003 |
jhb |
Rename cpuid_cpuinfo to cpu_procinfo. bde requested that I rename this
variable to something in the cpu_* namespace since that's what all the
other cpuid variables were named and cpu_procinfo is what I came up with.
Requested by: bde
|
| 109691 |
22-Jan-2003 |
jhb |
Bah, add in a missing space char I noticed when MFC'ing this.
|
| 109623 |
21-Jan-2003 |
alfred |
Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
|
| 109520 |
19-Jan-2003 |
marcel |
o Move the contents of <machine/floatingpoint.h> over to
<machine/ieeefp.h> where it belongs.
o Remove the i386 specific inclusion of <machine/floatingpoint.h>
from <ieeefp.h>, now that including <machine/ieeefp.h> is enough
for all architectures.
o Allow <machine/ieeefp.h> to inline the functions exposed by the
headers by checking for _IEEEFP_INLINED_ in the MI header. When
defined, prototypes are not given and it is assumed that the MD
headers, when inlining only a subset of the functions provide
prototypes for the functions not being inlined.
Based on patch from: Terry Lambert <tlambert2@mindspring.com>
Tested with: make release.
|
| 109412 |
17-Jan-2003 |
mdodd |
A driver for the System Management Application Program
Interface (SMAPI) BIOS, which is present on some IBM
Thinkpad models (560, 600, 770 to name a few.)
The SMAPI BIOS provides access to System Information,
System Configuration, and Power Management.
|
| 109026 |
09-Jan-2003 |
jhb |
Rework part of the previous processor name changes so that we read
cpu_exthigh and cpu_brand in printcpuinfo() instead of in identify_cpu().
We also only do it for known-good values of cpu_vendor which is a bit more
conservative.
Reviewed by: bde (mostly)
|
| 108947 |
08-Jan-2003 |
jhb |
- Add a cpu_exthigh variable to hold the highest extended cpuid value
returned from cpuid 0x80000000.
- Add a cpu_brand char array to hold the processor name returned by
cpuid 0x80000002-0x80000004 on AMD, Intel, Transmeta, and possibly
other CPUs.
- Use cpuid to set cpu_exthigh and read the processor name if it is present
in identify_cpu().
|
| 108914 |
08-Jan-2003 |
jhb |
Enumerate logical hyperthread CPUs manually if they aren't already listed
in the mptable. The way this works is that we determine if the system
has hyperthreading and how many logical CPU's should be in each physical
CPU by using the information returned by cpuid. During the first pass of
the mptable, we build a bitmask of the APIC IDs of the CPUs listed in the
mptable. We then scan that bitmask to see if the CPUs are already listed
by the mptable, or if there are any APIC IDs already in use that would
conflict with the APIC IDs of the logical CPUs. If that test succeeds,
then we fixup the count of application processors. Later on during the
second pass of the mptable we create fake processor entries for logical
CPUs and add them to the system.
We only need this type of fixup hack when using the mptable to enumerate
CPUs. The ACPI MADT table properly enumerates all logical CPUs.
|
| 108911 |
08-Jan-2003 |
jhb |
Add a cpuid_cpuinfo variable to hold the results of %ebx from cpuid with
%eax of 1 and set it in identify_cpu().
|
| 108909 |
08-Jan-2003 |
jhb |
- Fix the name of the hyperthreading cpuid feature flag to be HTT instead
of HHT.
- Document fields returned in %ebx by a cpuid with %eax of 1.
|
| 108533 |
01-Jan-2003 |
schweikh |
Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,
especially in troff files.
|
| 108175 |
22-Dec-2002 |
tjr |
MB_LEN_MAX is not MD, move it to the MI limits.h.
|
| 107521 |
02-Dec-2002 |
deischen |
Align the FPU state in the ucontext and sigcontext to 16 bytes
to accomodate the new SSE/XMM floating point save/restore
instructions.
This commit is mostly from bde and includes some style nits.
Approved by: re (jhb)
|
| 107317 |
27-Nov-2002 |
obrien |
Fix for non-GCC compilers.
Approved by: re (jhb)
|
| 106977 |
16-Nov-2002 |
deischen |
Add getcontext, setcontext, and swapcontext as system calls.
Previously these were libc functions but were requested to
be made into system calls for atomicity and to coalesce what
might be two entrances into the kernel (signal mask setting
and floating point trap) into one.
A few style nits and comments from bde are also included.
Tested on alpha by: gallatin
|
| 106598 |
07-Nov-2002 |
alfred |
Properly parenthesize the DBREG_DRX macro's variables to allow for
DBREG_DRX(&dbregs, n) usage.
|
| 106542 |
07-Nov-2002 |
davidxu |
1.Fix smp race between kernel vm86 BIOS calling and userland vm86 mode code,
remove global variable in_vm86call, set vm86 calling flag in PCB flags.
2.Fix vm86 BIOS calling preempted problem by changing vm86_lock mutex type
from MTX_DEF to MTX_SPIN. vm86pcb is not remembered in thread struct,
when the thread calling vm86 BIOS is preempted by interrupt thread,
and later switching back to the thread would cause incorrect context be
loaded into CPU registers, this leads to kernel crash.
|
| 105955 |
25-Oct-2002 |
jhb |
Note that the sched_lock protects md_ldt of struct mdproc.
|
| 105950 |
25-Oct-2002 |
peter |
Split 4.x and 5.x signal handling so that we can keep 4.x signal
handling clean and functional as 5.x evolves. This allows some of the
nasty bandaids in the 5.x codepaths to be unwound.
Encapsulate 4.x signal handling under COMPAT_FREEBSD4 (there is an
anti-foot-shooting measure in place, 5.x folks need this for a while) and
finish encapsulating the older stuff under COMPAT_43. Since the ancient
stuff is required on alpha (longjmp(3) passes a 'struct osigcontext *'
to the current sigreturn(2), instead of the 'ucontext_t *' that sigreturn
is supposed to take), add a compile time check to prevent foot shooting
there too. Add uniform COMPAT_43 stubs for ia64/sparc64/powerpc.
Tested on: i386, alpha, ia64. Compiled on sparc64 (a few days ago).
Approved by: re
|
| 105910 |
25-Oct-2002 |
imp |
Use the correct values for LDBL_*. Libc doesn't completely support
long doubles at the moment (printf truncates them to doubles).
However, long doubles to appear to work to the ranges listed in this
commit on both -stable (4.5) and -current. There may be some slight
rounding issues with long doubles, but that's an orthogonal issue to
these constants.
I've had this in my local tree for 3 months, and in my company's local
tree for 15 months with no ill effects.
Obtained from: NetBSD
Not likely to like it: bde
|
| 105777 |
23-Oct-2002 |
markm |
Very minor whitespace/style nit.
|
| 105554 |
20-Oct-2002 |
phk |
Change the definition of the debugging registers to be an array, so
that we can index into it, rather than do pointer gymnastics on a
structure containing 8 elements.
Verified by: MD5 hash on the produced .o files.
|
| 105347 |
17-Oct-2002 |
pirzyk |
Add the !define(COMPILING_LINT)
pass the pointy hat...
Requested by: Juli Mallett <jmallett@FreeBSD.org>
|
| 105311 |
17-Oct-2002 |
pirzyk |
put an #error directive when SMP and CPU_DISABLE_CMPXCHG are set
together.
Requested by: Lars Eggart <larse@isi.edu>
Enlighted how to do it by: John Baldwin <jhb@freebsd.org>
|
| 105216 |
16-Oct-2002 |
phk |
Be consistent about functions being static.
Spotted by: FlexeLint.
|
| 105138 |
15-Oct-2002 |
peter |
The a.out md_coredump stuff isn't referenced anywhere anymore, and
hasn't been filled in for ages.. Nuked.
|
| 105117 |
14-Oct-2002 |
pirzyk |
Add a knob to turn on and off the CMPXCHG instruction on > i386 IA32 systems.
This is most beneficial for vmware client os installs.
Reviewed by: jmallet, iedowse, tlambert2@mindspring.com
MFC After: never, -STABLE does not currently use this instruction
|
| 105014 |
13-Oct-2002 |
mike |
Add standards visibility conditionals. Change any uses of sigset_t to
struct __sigset to avoid depending on objects from <sys/signal.h>.
|
| 104584 |
06-Oct-2002 |
mike |
Add conditionals to allow va_list to be defined in other headers.
|
| 104583 |
06-Oct-2002 |
mike |
o Add conditionals to allow va_list to be defined in other headers.
o Standardize on _MACHINE_STDARG_H_ to allow multiple header includes.
o Restrict the definition of va_copy() to C99 environments.
|
| 104505 |
05-Oct-2002 |
mike |
Fix namespace issues by using visibility conditionals from
<sys/cdefs.h>.
|
| 104493 |
04-Oct-2002 |
mike |
style(9) <machine/setjmp.h> headers so they look mostly the same.
|
| 104486 |
04-Oct-2002 |
sam |
New bus_dma interfaces for use by crypto device drivers:
o bus_dmamap_load_mbuf
o bus_dmamap_load_uio
Test on i386. Known to compile on alpha and sparc64, but not tested.
Otherwise untried.
|
| 104460 |
04-Oct-2002 |
deischen |
Add another temporary hack to allow running older i386 binaries.
This will be removed when new versions of syscalls sigreturn()
and sigaction() are added (mini is working on this but is in
the middle of a move).
This should fix the problem of cvsupd dying.
|
| 104340 |
02-Oct-2002 |
bde |
Removed bits related to MBRs now that they have a proper home in
<sys/diskmbr.h>.
|
| 104294 |
01-Oct-2002 |
phk |
It is too much work convincing lint why we would want empty structures,
so make the non-empty #ifdef lint.
|
| 104293 |
01-Oct-2002 |
phk |
Use long long to indicate 64bitness in #ifdef lint.
|
| 104291 |
01-Oct-2002 |
phk |
A more lint friendly #ifdef lint section.
|
| 104215 |
30-Sep-2002 |
obrien |
Turn back on the "SMP: AP CPU #N Launched!" message on normal boots.
Peter's rev 1.189 should fix the lost console on SCSI-based systems due
to this message.
|
| 104175 |
30-Sep-2002 |
obrien |
Only print out the "SMP: AP CPU #N Launched!" message on verbose boots.
The kernel printf() isn't race-free
|
| 104110 |
28-Sep-2002 |
peter |
There is no need for start/num to be signed in i386_ldt_args.
|
| 103987 |
26-Sep-2002 |
peter |
ISMEMSDP(), IS286GDP(), IS386GDP(), ISGDP(), ISSDP() and ISSYSSDP() are
not used anywhere anymore.
|
| 103965 |
25-Sep-2002 |
markm |
Fix a declaration that is actually supposed to be a macro definition.
Submitted by: marius@alchemy.franken.de
|
| 103870 |
23-Sep-2002 |
alfred |
use __packed.
|
| 103865 |
23-Sep-2002 |
jhb |
Update the nexus driver for the addition of the legacy driver:
- nexus no longer has PCI bridges as direct children, so the PCI bus
ivar is no longer used and is removed.
- Don't attach default EISA, ISA, or MCA busses. Instead, if we do not
have an acpi0 device after bus_generic_probe(), add a legacy0 child
device.
- Remove machine/nexusvar.h.
|
| 103862 |
23-Sep-2002 |
jhb |
Add a new legacy(4) device driver for use on machines that do not have
ACPI or for when ACPI support is disabled or not present in the kernel.
Basically, the nexus device is now split into two with some parts
(such as adding default ISA, MCA, and EISA busses if they aren't found
as well as support for PCI bus device ivars) being moved to the legacy
driver.
|
| 103850 |
23-Sep-2002 |
peter |
PIC_GOTOFF is OBE.
|
| 103847 |
23-Sep-2002 |
peter |
use __packed, rather than __attribute__((packed)).
|
| 103834 |
23-Sep-2002 |
peter |
At great personal risk, add a __packed and __aligned(x) define that
expand to __attribute__((packed)) and __attribute__((aligned(x)))
respectively. Replace the handful of gcc-ism's that use
__attribute__((aligned(16))) etc around the kernel with __aligned(16).
There are over 400 __attribute__((packed)) to deal with, that can come
later. I just want to use __packed in new code rather than add more
gcc-ism's.
|
| 103824 |
23-Sep-2002 |
peter |
Delete a whole bunch of compatability defines that we dont use anymore.
|
| 103814 |
23-Sep-2002 |
mike |
Be careful not to define GCC-specific optimizations in the non-GCC
case.
|
| 103778 |
22-Sep-2002 |
peter |
Create inlines for ltr(sel), lldt(sel), lidt(addr) rather than
functions that have one instruction.
|
| 103749 |
21-Sep-2002 |
markm |
Provide in inline function for the (GNUC) assembler "hlt" instruction.
|
| 103596 |
19-Sep-2002 |
peter |
Repo copied to <sys/smbus/smb.h>
|
| 103595 |
19-Sep-2002 |
peter |
Repo copied to <sys/iicbus/iic.h>
|
| 103526 |
18-Sep-2002 |
mike |
Implement C99's va_copy() macro.
|
| 103436 |
17-Sep-2002 |
peter |
Initiate deorbit burn for the i386-only a.out related support. Moves are
under way to move the remnants of the a.out toolchain to ports. As the
comment in src/Makefile said, this stuff is deprecated and one should not
expect this to remain beyond 4.0-REL. It has already lasted WAY beyond
that.
Notable exceptions:
gcc - I have not touched the a.out generation stuff there.
ldd/ldconfig - still have some code to interface with a.out rtld.
old as/ld/etc - I have not removed these yet, pending their move to ports.
some includes - necessary for ldd/ldconfig for now.
Tested on: i386 (extensively), alpha
|
| 103408 |
16-Sep-2002 |
mini |
Add kernel support needed for the KSE-aware libpthread:
- Maintain fpu state across signals.
- Save and restore FPU state properly in ucontext_t's.
Reviewed by: deischen, julian
Approved by: -arch
|
| 103043 |
06-Sep-2002 |
jhb |
Add a function pci_probe_route_table() that returns true if our PCI BIOS
supports interrupt routing and if the specified PCI bus is present in the
routing table.
|
| 103025 |
06-Sep-2002 |
jhb |
- Add a pci_cfgintr_valid() function to see if a given IRQ is a valid
IRQ for an entry in a PCIBIOS interrupt routing ($PIR) table.
- Change pci_cfgintr() to except the current IRQ of a device as a fourth
argument and to use that IRQ for the device if it is valid.
- If an intpin entry in a $PIR entry has a link of 0, it means that that
intpin isn't connected to anything that can trigger an interrupt. Thus,
test the link against 0 to find invalid entries in the table instead of
implicitly relying on the irqs field to be zero. In the machines I have
looked at, intpin entries with a link of 0 often have the bits for all
possible interrupts for PCI devices set.
|
| 102932 |
04-Sep-2002 |
jhb |
Function prototypes don't need 'extern'.
|
| 102874 |
03-Sep-2002 |
mike |
Now that _BSD_CLK_TCK_ and _BSD_CLOCKS_PER_SEC_ are the same on all
architectures, move the definition directly into <time.h> and finish
the removal of <machine/ansi.h>.
|
| 102738 |
31-Aug-2002 |
dillon |
Reduce the maximum KVA reserved for swap meta structures from 70 to 32 MB.
Reduce the swap meta calculation by a factor of 2, it's still massive overkill.
X-MFC after: immediately
|
| 102600 |
30-Aug-2002 |
peter |
Change hw.physmem and hw.usermem to unsigned long like they used to be
in the original hardwired sysctl implementation.
The buf size calculator still overflows an integer on machines with large
KVA (eg: ia64) where the number of pages does not fit into an int. Use
'long' there.
Change Maxmem and physmem and related variables to 'long', mostly for
completeness. Machines are not likely to overflow 'int' pages in the
near term, but then again, 640K ought to be enough for anybody. This
comes for free on 32 bit machines, so why not?
|
| 102561 |
29-Aug-2002 |
jake |
Renamed poorly named setregs to exec_setregs. Moved its prototype to
imgact.h with the other exec support functions.
|
| 102543 |
28-Aug-2002 |
peter |
OK, I have had it with losing my console because the AP's print their "I am
alive!" message right as the scsi probe messages happen. This is a bit
nasty, but it seems to work. At the point that we unlock the AP's, briefly
wait till they are all done while we hold the console on their behalf.
|
| 102315 |
23-Aug-2002 |
mike |
Move several MI types from <machine/_types.h> to <sys/_types.h>.
These types are unlikely to ever become very MD. They include:
clockid_t, ct_rune_t, fflags_t, intrmask_t, mbstate_t, off_t, pid_t,
rune_t, socklen_t, timer_t, wchar_t, and wint_t.
While moving them, make a few adjustments (submitted by bde):
o __ct_rune_t needs to be precisely `int', not necessarily __int32_t,
since the arg type of the ctype functions is int.
o __rune_t, __wchar_t and __wint_t inherit this via a typedef of
__ct_rune_t.
o Some minor wording changes in the comment blocks for ct_rune_t and
mbstate_t.
Submitted by: bde (partially)
|
| 102243 |
22-Aug-2002 |
mike |
Make __clock_t use `unsigned long' rather than a fixed 32-bit integer
so that it changes to the correct size in IP32L64 mode. Other
architectures don't have this issue.
|
| 102227 |
21-Aug-2002 |
mike |
o Merge <machine/ansi.h> and <machine/types.h> into a new header
called <machine/_types.h>.
o <machine/ansi.h> will continue to live so it can define MD clock
macros, which are only MD because of gratuitous differences between
architectures.
o Change all headers to make use of this. This mainly involves
changing:
#ifdef _BSD_FOO_T_
typedef _BSD_FOO_T_ foo_t;
#undef _BSD_FOO_T_
#endif
to:
#ifndef _FOO_T_DECLARED
typedef __foo_t foo_t;
#define _FOO_T_DECLARED
#endif
Concept by: bde
Reviewed by: jake, obrien
|
| 102179 |
20-Aug-2002 |
mux |
Use the __BUS_ACCESSOR macro for NEXUS_ACCESSOR
instead of rolling our own implementation.
Reviewed by: tmm
|
| 101716 |
12-Aug-2002 |
hm |
add support properly displaying and logging incoming telephone numbers (MSNs)
by looking at the "type of number" field and providing configurable hooks
to correct the numbers accordingly. See keywords add-prefix, prefix-national
and prefix-international in isdnd.rc(5).
This feature was implemented by Christian Ullrich <chris@chrullrich.de>
|
| 101689 |
11-Aug-2002 |
hm |
add experimental support for Data over Voice (DoV) outgoing calls.
based on patches received from Guy Ellis (guy@traverse.com.au),
Chris Collins (xfire@xware.cx) and Phillip Musumeci (phillip@cs.jcu.edu.au).
|
| 101349 |
05-Aug-2002 |
alc |
o Introduce pmap_page_is_mapped(). Its purpose is to obsolete
the PG_MAPPED flag.
|
| 101235 |
02-Aug-2002 |
phk |
Move a prototype to the least wrong place.
Suggested by: bde
|
| 101054 |
31-Jul-2002 |
phk |
The Elan SC520 MMCR is actually 16bit wide, so u_char is inconvenient.
|
| 100969 |
30-Jul-2002 |
iwasaki |
Resolve conflicts arising from the ACPI CA 20020725 import.
|
| 100882 |
29-Jul-2002 |
mike |
Create a new header <machine/_stdint.h> for storing MD parts of
<stdint.h>. Previously, parts were defined in <machine/ansi.h> and
<machine/limits.h>. This resulted in two problems:
(1) Defining macros in <machine/ansi.h> gets in the way of that
header only defining types.
(2) Defining C99 limits in <machine/limits.h> adds pollution to
<limits.h>.
|
| 100432 |
21-Jul-2002 |
peter |
Move SWTCH_OPTIM_STATS related code out of cpufunc.h. (This sort of stat
gathering is not an x86 cpu feature)
|
| 100327 |
18-Jul-2002 |
markm |
Beautify. This has the side effect of improving portability and
making lint work cleaner.
Inspired to do this by: jhb
|
| 100321 |
18-Jul-2002 |
phk |
Add initialization code for the AMD Elan sc520 which maps the MMCR
into KVM and sets the i8254 frequency to the correct value.
|
| 100251 |
17-Jul-2002 |
markm |
Clean up the syntax WRT semicolons at the end of function-like-macros, and protect GCCisms from non-GNU compilers and lint.
|
| 100079 |
15-Jul-2002 |
markm |
Wrap GNU specific code in ifdefs, and help lint out by providing
some alternative definitions.
|
| 100078 |
15-Jul-2002 |
markm |
Cast to prevent "signed/unsigned comparison" warnings.
|
| 100077 |
15-Jul-2002 |
markm |
Warnings and lint-assisting fixes; mark unused function parameters as
unused; wrap GNUisms (asm code) in appropriate #ifdefs.
|
| 99862 |
12-Jul-2002 |
peter |
Revive backed out pmap related changes from Feb 2002. The highlights are:
- It actually works this time, honest!
- Fine grained TLB shootdowns for SMP on i386. IPI's are very expensive,
so try and optimize things where possible.
- Introduce ranged shootdowns that can be done as a single IPI.
- PG_G support for i386
- Specific-cpu targeted shootdowns. For example, there is no sense in
globally purging the TLB cache for where we are stealing a page from
the local unshared process on the local cpu. Use pm_active to track
this.
- Add some instrumentation for the tlb shootdown code.
- Rip out SMP code from <machine/cpufunc.h>
- Try and fix some very bogus PG_G and PG_PS interactions that were bad
enough to cause vm86 bios calls to break. vm86 depended on our existing
bugs and this was the cause of the VESA panics last time.
- Fix the silly one-line error that caused the 'panic: bad pte' last time.
- Fix a couple of other silly one-line errors that should have caused more
pain than they did.
Some more work is needed:
- pmap_{zero,copy}_page[_idle]. These can be done without IPI's if we
have a hook in cpu_switch.
- The IPI handlers need some cleanup. I have a bogus %ds load that can
be avoided.
- APTD handling is rather bogus and appears to be a large source of
global TLB IPI shootdowns for no really good reason.
I see speedups of between 1.5% and ~4% on buildworlds in a while 1 loop.
I expect to see a bigger difference when there is significant pageout
activity or the system otherwise has memory shortages.
I have backed out a few optimizations that I had been using over the last
few days in order to be a little more conservative. I'll revisit these
again over the next few days as the dust settles.
New option: DISABLE_PG_G - In case I missed something.
|
| 99766 |
11-Jul-2002 |
peter |
Bah, move the invltlb counter to C code and hook a debug sysctl onto it.
|
| 99742 |
10-Jul-2002 |
dillon |
Remove the critmode sysctl - the new method for critical_enter/exit (already
the default) is now the only method for i386.
Remove the paraphanalia that supported critmode. Remove td_critnest, clean
up the assembly, and clean up (mostly remove) the old junk from
cpu_critical_enter() and cpu_critical_exit().
|
| 99733 |
10-Jul-2002 |
mike |
Remove label_t and physadr, which seem to have never been used in
FreeBSD.
Submitted by: bde
|
| 99629 |
09-Jul-2002 |
mike |
Move the type definition of ointhand2_t from i386/include/types.h to
i386/isa/isa_device.h. This is a more appropriate location and
helps restrict <machine/types.h> to only types that exist on all
platforms.
|
| 99594 |
08-Jul-2002 |
mike |
Move __offsetof() macro from <machine/ansi.h> to <sys/cdefs.h>. It's
hardly MD, since all our platforms share the same macro. It's not
really compiler dependent either, but this helps in reducing
<machine/ansi.h> to only type definitions.
|
| 99582 |
08-Jul-2002 |
peter |
Remove #define APIC_INTR_HIGHPRI_CLOCK - this is no longer used
(see i386/isa/intr_machdep.c 1.72)
|
| 99578 |
08-Jul-2002 |
peter |
Cosmetic. Remove #if 0 definition of vtophys() - it predates 4MB pages.
Remove avtophys(), it isn't referenced anywhere.
|
| 99117 |
30-Jun-2002 |
mike |
Since printf(3) now supports the `j' conversion specifier, use that
when printing intmax_t and uintmax_t.
Forgotten by: mike
Noticed by: bde
|
| 99026 |
29-Jun-2002 |
julian |
Add files that are new for KSE.
|
| 98710 |
23-Jun-2002 |
iedowse |
Make vm_pindex_t 64-bit on all platforms. This is necessary to avoid
overflows with the large file sizes that UFS2 permits.
Reviewed by: dillon, alc, tegge
|
| 98650 |
22-Jun-2002 |
mp |
Add additional cpuid feature flags and put into a canonical format.
MFC after: 1 week
|
| 98648 |
22-Jun-2002 |
jdp |
Fix several bugs in the i386 asm statements used to speed up Internet
checksumming. These bugs could possibly cause bad code to be
generated at elevated optimization levels.
First, eliminate the use of preprocessor magic to form the address
fields of asm instructions. It hid the actual addresses being
referenced from the compiler. Without knowledge of all the data
dependencies, the compiler might possibly use optimizations which
would result in incorrect code.
Use "__asm __volatile" rather than "__asm" for instruction sequences
that pass information through the condition codes (the carry bit, in
this case). Without __volatile, the compiler might add unrelated
code between consecutive __asm instructions, modifying the condition
codes. I have seen GCC insert stack pointer adjustments in this
way, for example. Unfortunately, GCC doesn't provide a way to
specify dependencies on the condition codes. You can specify that
they are clobbered, but not that you are going to use them as input.
Finally, simplify the LOAD macro. This macro is used as a poor
man's prefetch. The simpler version gives the compiler more leeway
about just how it performs the prefetch.
MFC after: 1 week
|
| 98469 |
20-Jun-2002 |
peter |
Move the "- 1" into the RQB_FFS(mask) macro itself so that
implementations can provide a base zero ffs function if they wish.
This changes
#define RQB_FFS(mask) (ffs64(mask))
foo = RQB_FFS(mask) - 1;
to
#define RQB_FFS(mask) (ffs64(mask) - 1)
foo = RQB_FFS(mask);
On some platforms we can get the "- 1" for free, eg: those that use the
C code for ffs64().
Reviewed by: jake (in principle)
|
| 97748 |
02-Jun-2002 |
schweikh |
Fix typo in the BSD copyright: s/withough/without/
Spotted and suggested by: des
MFC after: 3 weeks
|
| 97721 |
01-Jun-2002 |
alfred |
Silence preprocessor warning, No need to use CONCAT with "," and "word".
|
| 97713 |
01-Jun-2002 |
bde |
Fixed the return value of fpsetmask(). The API requires inversion of the
mask on both input and output to fpsetmask(), but this was only done for
input, so fpsetmask() returned the complement of the old mask (ANDed with
the mask bitfield).
PR: 38170
MFC after: 4 weeks
|
| 97711 |
01-Jun-2002 |
bde |
Fixed style bugs in rev.1.9.
|
| 97564 |
30-May-2002 |
dfr |
Move the definition of ElfN_Hashelt to common headers. The only platform
which has a different definition for this is alpha.
|
| 97261 |
25-May-2002 |
jake |
Make the run queue parameters machine dependent. Optimize 64 bit
architectures by using a 64 bit word for the bit array which keeps
track of non-empty queues.
Reviewed by: peter
|
| 97139 |
22-May-2002 |
jhb |
Rename pause() to ia32_pause() so it doesn't conflict with the pause()
function defined in <unistd.h>. I didn't #ifdef _KERNEL it because the
mutex implementation in libpthread will probably need this.
|
| 97115 |
22-May-2002 |
jhb |
Debug registers aren't selectors, so use saner names for the variables in
the inline functions for reading and writing the debug registers.
|
| 97114 |
22-May-2002 |
jhb |
- Sort the pause() inline into the appropriate location.
- Add many missing prototypes to the non-GCC section.
|
| 97113 |
22-May-2002 |
jhb |
Rename cpu_pause() to pause(). Originally I was going to make this an
MI API with empty cpu_pause() functions on other arch's, but this
functionality is definitely unique to IA-32, so I decided to leave it
as i386-only and wrap it in #ifdef's. I should have dropped the cpu_
prefix when I made that decision.
Requested by: bde
|
| 97076 |
21-May-2002 |
jhb |
Add an inline function cpu_pause() for the IA32 'pause' instruction.
|
| 97064 |
21-May-2002 |
nyan |
Remove unneeded ## for GCC 3.1
|
| 96606 |
14-May-2002 |
phk |
Move MI stuff out of MD param.h files.
It can all still be overridden in the MD files should need suddenly arise.
|
| 96325 |
10-May-2002 |
obrien |
I reorganized a little bit too much in the backwards case.
|
| 96317 |
10-May-2002 |
obrien |
Gcc 3.1 varargs support.
|
| 95710 |
29-Apr-2002 |
peter |
Tidy up some loose ends.
i386/ia64/alpha - catch up to sparc64/ppc:
- replace pmap_kernel() with refs to kernel_pmap
- change kernel_pmap pointer to (&kernel_pmap_store)
(this is a speedup since ld can set these at compile/link time)
all platforms (as suggested by jake):
- gc unused pmap_reference
- gc unused pmap_destroy
- gc unused struct pmap.pm_count
(we never used pm_count - we track address space sharing at the vmspace)
|
| 95195 |
21-Apr-2002 |
markm |
Stylify (mainly line up macro EOL-continuation \'s), and add a dummy
alternative for lint.
|
| 94967 |
17-Apr-2002 |
tegge |
Fix typo in adjusted panic message.
Submitted by: cokane
|
| 94962 |
17-Apr-2002 |
tegge |
Update io_apic_ints array properly when revoking an irq mapping.
Adjust panic message.
Submitted by: David Xu <bsddiy@yahoo.com>
|
| 94386 |
10-Apr-2002 |
dwmalone |
Move do_cpuid into the correct place in this file and make
the indentation more like the other multi-line assembley in
this file.
Someone who understands gcc constraints could update the
constraints for do_cpuid.
|
| 94363 |
10-Apr-2002 |
mike |
Remove the hack for segsz_t from <sys/types.h>; use the normal
_BSD_FOO_T_ method for defining segsz_t.
|
| 94362 |
10-Apr-2002 |
mike |
Add manifest constants: _LITTLE_ENDIAN, _BIG_ENDIAN, _PDP_ENDIAN, and
_BYTE_ORDER. These are far more useful than their non-underscored
equivalents as these can be used in restricted namespace environments.
Mark the non-underscored variants as deprecated.
|
| 94275 |
09-Apr-2002 |
phk |
GC various bits and pieces of USERCONFIG from all over the place.
|
| 94274 |
09-Apr-2002 |
phk |
machine/uc_device.h was only here for USERCONFIG and kget(1).
We have neither anymore.
|
| 93818 |
04-Apr-2002 |
jhb |
Change callers of mtx_init() to pass in an appropriate lock type name. In
most cases NULL is passed, but in some cases such as network driver locks
(which use the MTX_NETWORK_LOCK macro) and UMA zone locks, a name is used.
Tested on: i386, alpha, sparc64
|
| 93607 |
01-Apr-2002 |
dillon |
Stage-2 commit of the critical*() code. This re-inlines cpu_critical_enter()
and cpu_critical_exit() and moves associated critical prototypes into their
own header file, <arch>/<arch>/critical.h, which is only included by the
three MI source files that need it.
Backout and re-apply improperly comitted syntactical cleanups made to files
that were still under active development. Backout improperly comitted program
structure changes that moved localized declarations to the top of two
procedures. Partially re-apply one of the program structure changes to
move 'mask' into an intermediate block rather then in three separate
sub-blocks to make the code more readable. Re-integrate bug fixes that Jake
made to the sparc64 code.
Note: In general, developers should not gratuitously move declarations out
of sub-blocks. They are where they are for reasons of structure, grouping,
readability, compiler-localizability, and to avoid developer-introduced bugs
similar to several found in recent years in the VFS and VM code.
Reviewed by: jake
|
| 93340 |
28-Mar-2002 |
jhb |
GC #if 0'd assembly mutex micro operations. If someone wants to bring
these back later then can get them from the attic. Also, GC, some stale
macros to acquire and release sleep mutexes in assembly.
|
| 93264 |
27-Mar-2002 |
dillon |
Compromise for critical*()/cpu_critical*() recommit. Cleanup the interrupt
disablement assumptions in kern_fork.c by adding another API call,
cpu_critical_fork_exit(). Cleanup the td_savecrit field by moving it
from MI to MD. Temporarily move cpu_critical*() from <arch>/include/cpufunc.h
to <arch>/<arch>/critical.c (stage-2 will clean this up).
Implement interrupt deferral for i386 that allows interrupts to remain
enabled inside critical sections. This also fixes an IPI interlock bug,
and requires uses of icu_lock to be enclosed in a true interrupt disablement.
This is the stage-1 commit. Stage-2 will occur after stage-1 has stabilized,
and will move cpu_critical*() into its own header file(s) + other things.
This commit may break non-i386 architectures in trivial ways. This should
be temporary.
Reviewed by: core
Approved by: core
|
| 93226 |
26-Mar-2002 |
hm |
Add support for Q.931 subaddresses.
Submitted by: Steven Looman <fsteevie@wish.net>
|
| 93092 |
24-Mar-2002 |
obrien |
Guard against redefining __gnuc_va_list.
|
| 93018 |
23-Mar-2002 |
bde |
Fixed some style bugs in the removal of __P(()). The main ones were
not removing tabs before "__P((", and not outdenting continuation lines
to preserve non-KNF lining up of code with parentheses. Switch to KNF
formatting and/or rewrap the whole prototype in some cases.
|
| 93017 |
23-Mar-2002 |
bde |
Fixed some style bugs in the removal of __P(()). The main ones were
not removing tabs before "__P((", and not outdenting continuation lines
to preserve non-KNF lining up of code with parentheses. Switch to KNF
formatting and/or rewrap the whole prototype in some cases.
|
| 92998 |
23-Mar-2002 |
obrien |
ASM versions of __FBSDID.
|
| 92860 |
21-Mar-2002 |
imp |
Fix abuses of cpu_critical_{enter,exit} by converting to
intr_{disable,restore} as well as providing an implemenation of
intr_{disable,restore}.
Reviewed by: jake, rwatson, jhb
|
| 92819 |
20-Mar-2002 |
imp |
Fix minor style(9) violation in de__Ping
|
| 92770 |
20-Mar-2002 |
alfred |
Remove __P.
|
| 92761 |
20-Mar-2002 |
alfred |
Remove __P.
|
| 92487 |
17-Mar-2002 |
hm |
Clean up the i4b kernel part: remove unmaintained #if(def)s for NetBSD,
OpenBSD and BSD/OS and respective code, remove pre $FreeBSD CVS id's,
remove #if(def)s and respective code for FreeBSD versions < 5 .
|
| 92383 |
16-Mar-2002 |
des |
Move the definition of PT_[GS]ET{,DB,FP}REGS from the MD ptrace.h to the
MI ptrace.h, since all platforms define them. Keep the MD ptrace.h around
for FIX_SSTEP (which is currently only needed on Alpha).
|
| 91959 |
09-Mar-2002 |
mike |
o Don't require long long support in bswap64() functions.
o In i386's <machine/endian.h>, macros have some advantages over
inlines, so change some inlines to macros.
o In i386's <machine/endian.h>, ungarbage collect word_swap_int()
(previously __uint16_swap_uint32), it has some uses on i386's with
PDP endianness.
Submitted by: bde
o Move a comment up in <machine/endian.h> that was accidentially moved
down a few revisions ago.
o Reenable userland's use of optimized inline-asm versions of
byteorder(3) functions.
o Fix ordering of prototypes vs. redefinition of byteorder(3)
functions, so that the non-GCC (libc asm) case has proper
prototypes.
o Add proper prototypes for byteorder(3) functions in <sys/param.h>.
o Prevent redundant duplicate prototypes by making use of the
_BYTEORDER_PROTOTYPED define.
o Move the bswap16(), bswap32(), bswap64() C functions into MD space
for platforms in which asm versions don't exist. This significantly
reduces the complexity of some things at the cost of duplicate code.
Reviewed by: bde
|
| 91943 |
09-Mar-2002 |
hm |
after joerg's recent merge of i4b's sppp with the main sppp, remove
now obsolete file.
|
| 91778 |
07-Mar-2002 |
jake |
Add needed includes of machine/smp.h, remove nested include in sys/smp.h
so that inlines in machine/smp.h can use variables declared in sys/smp.h.
|
| 91673 |
05-Mar-2002 |
jeff |
Add a new variable mp_maxid. This is used so that per cpu datastructures may
be allocated as arrays indexed by the cpu id. Previously the only reliable
way to know the max cpu id was through MAXCPU. mp_ncpus isn't useful here
because cpu ids may be sparsely mapped, although x86 and alpha do not do this.
Also, call cpu_mp_probe much earlier so the max cpu id is known before the VM
starts up. This is intended to help support per cpu queues for the new
allocator, but may be useful elsewhere.
Reviewed by: jake
Approved by: jake
|
| 91497 |
28-Feb-2002 |
markm |
Make it a bit clearer where this file is to be used and where it
should not be. (Comments only)
Inspired by: bde
|
| 91469 |
28-Feb-2002 |
bmilekic |
Make MPLOCKED work again in asm files and stringify it explicitly
where necessary.
Reviewed by: jake
|
| 91429 |
27-Feb-2002 |
jhb |
Back out part of KSE/M2 that snuck in under the radar: changing the
prototype of bzero() on the i386 to have a volatile first argument.
Requested by: bde, jake
|
| 91394 |
27-Feb-2002 |
tmm |
Add the following functions/macros to support byte order conversions and
device drivers for bus system with other endinesses than the CPU (using
interfaces compatible to NetBSD):
- bwap16() and bswap32(). These have optimized implementations on some
architectures; for those that don't, there exist generic implementations.
- macros to convert from a certain byte order to host byte order and vice
versa, using a naming scheme like le16toh(), htole16().
These are implemented using the bswap functions.
- stream bus space access functions, which do not perform a byte order
conversion (while the normal access functions would if the bus endianess
differs from the CPU endianess).
htons(), htonl(), ntohs() and ntohl() are implemented using the new
functions above for kernel usage. None of the above interfaces is currently
exported to user land.
Make use of the new functions in a few places where local implementations
of the same functionality existed.
Reviewed by: mike, bde
Tested on alpha by: mike
|
| 91367 |
27-Feb-2002 |
peter |
Back out all the pmap related stuff I've touched over the last few days.
There is some unresolved badness that has been eluding me, particularly
affecting uniprocessor kernels. Turning off PG_G helped (which is a bad
sign) but didn't solve it entirely. Userland programs still crashed.
|
| 91328 |
26-Feb-2002 |
dillon |
revert last commit temporarily due to whining on the lists.
|
| 91315 |
26-Feb-2002 |
dillon |
STAGE-1 of 3 commit - allow (but do not require) interrupts to remain
enabled in critical sections and streamline critical_enter() and
critical_exit().
This commit allows an architecture to leave interrupts enabled inside
critical sections if it so wishes. Architectures that do not wish to do
this are not effected by this change.
This commit implements the feature for the I386 architecture and provides
a sysctl, debug.critical_mode, which defaults to 1 (use the feature). For
now you can turn the sysctl on and off at any time in order to test the
architectural changes or track down bugs.
This commit is just the first stage. Some areas of the code, specifically
the MACHINE_CRITICAL_ENTER #ifdef'd code, is strictly temporary and will
be cleaned up in the STAGE-2 commit when the critical_*() functions are
moved entirely into MD files.
The following changes have been made:
* critical_enter() and critical_exit() for I386 now simply increment
and decrement curthread->td_critnest. They no longer disable
hard interrupts. When critical_exit() decrements the counter to
0 it effectively calls a routine to deal with whatever interrupts
were deferred during the time the code was operating in a critical
section.
Other architectures are unaffected.
* fork_exit() has been conditionalized to remove MD assumptions for
the new code. Old code will still use the old MD assumptions
in regards to hard interrupt disablement. In STAGE-2 this will
be turned into a subroutine call into MD code rather then hardcoded
in MI code.
The new code places the burden of entering the critical section
in the trampoline code where it belongs.
* I386: interrupts are now enabled while we are in a critical section.
The interrupt vector code has been adjusted to deal with the fact.
If it detects that we are in a critical section it currently defers
the interrupt by adding the appropriate bit to an interrupt mask.
* In order to accomplish the deferral, icu_lock is required. This
is i386-specific. Thus icu_lock can only be obtained by mainline
i386 code while interrupts are hard disabled. This change has been
made.
* Because interrupts may or may not be hard disabled during a
context switch, cpu_switch() can no longer simply assume that
PSL_I will be in a consistent state. Therefore, it now saves and
restores eflags.
* FAST INTERRUPT PROVISION. Fast interrupts are currently deferred.
The intention is to eventually allow them to operate either while
we are in a critical section or, if we are able to restrict the
use of sched_lock, while we are not holding the sched_lock.
* ICU and APIC vector assembly for I386 cleaned up. The ICU code
has been cleaned up to match the APIC code in regards to format
and macro availability. Additionally, the code has been adjusted
to deal with deferred interrupts.
* Deferred interrupts use a per-cpu boolean int_pending, and
masks ipending, spending, and fpending. Being per-cpu variables
it is not currently necessary to lock; bus cycles modifying them.
Note that the same mechanism will enable preemption to be
incorporated as a true software interrupt without having to
further hack up the critical nesting code.
* Note: the old critical_enter() code in kern/kern_switch.c is
currently #ifdef to be compatible with both the old and new
methodology. In STAGE-2 it will be moved entirely to MD code.
Performance issues:
One of the purposes of this commit is to enhance critical section
performance, specifically to greatly reduce bus overhead to allow
the critical section code to be used to protect per-cpu caches.
These caches, such as Jeff's slab allocator work, can potentially
operate very quickly making the effective savings of the new
critical section code's performance very significant.
The second purpose of this commit is to allow architectures to
enable certain interrupts while in a critical section. Specifically,
the intention is to eventually allow certain FAST interrupts to
operate rather then defer.
The third purpose of this commit is to begin to clean up the
critical_enter()/critical_exit()/cpu_critical_enter()/
cpu_critical_exit() API which currently has serious cross pollution
in MI code (in fork_exit() and ast() for example).
The fourth purpose of this commit is to provide a framework that
allows kernel-preempting software interrupts to be implemented
cleanly. This is currently used for two forward interrupts in I386.
Other architectures will have the choice of using this infrastructure
or building the functionality directly into critical_enter()/
critical_exit().
Finally, this commit is designed to greatly improve the flexibility
of various architectures to manage critical section handling,
software interrupts, preemption, and other highly integrated
architecture-specific details.
|
| 91260 |
25-Feb-2002 |
peter |
Work-in-progress commit syncing up pmap cleanups that I have been working
on for a while:
- fine grained TLB shootdown for SMP on i386
- ranged TLB shootdowns.. eg: specify a range of pages to shoot down with
a single IPI, since the IPI is very expensive. Adjust some callers
that used to trigger this inside tight loops to do a ranged shootdown
at the end instead.
- PG_G support for SMP on i386 (options ENABLE_PG_G)
- defer PG_G activation till after we decide what we are going to do with
PSE and the 4MB pages at the start of the kernel. This should solve
some rumored strangeness about stale PG_G entries getting stuck
underneath the 4MB pages.
- add some instrumentation for the fine TLB shootdown
- convert some asm instruction wrappers from functions to inlines. gcc
seems to do a fair bit better with this.
- [temporarily!] pessimize the tlb shootdown IPI handlers. I will fix
this again shortly.
This has been working fairly well for me for a while, but I have tweaked
it again prior to commit since my last major testing round. The only
outstanding problem that I know of is PG_G related, which is why there
is an option for it (not on by default for SMP). I have seen a world
speedups by a few percent (as much as 4 or 5% in one case) but I have
*not* accurately measured this - I am a bit sceptical of these numbers.
|
| 91250 |
25-Feb-2002 |
peter |
Tidy up some warnings
|
| 91066 |
22-Feb-2002 |
phk |
Convert p->p_runtime and PCPU(switchtime) to bintime format.
|
| 90947 |
20-Feb-2002 |
peter |
Some more tidy-up of stray "unsigned" variables instead of p[dt]_entry_t
etc.
|
| 90885 |
19-Feb-2002 |
mike |
Add C++ support.
|
| 90868 |
18-Feb-2002 |
mike |
o Move NTOHL() and associated macros into <sys/param.h>. These are
deprecated in favor of the POSIX-defined lowercase variants.
o Change all occurrences of NTOHL() and associated marcros in the
source tree to use the lowercase function variants.
o Add missing license bits to sparc64's <machine/endian.h>.
Approved by: jake
o Clean up <machine/endian.h> files.
o Remove unused __uint16_swap_uint32() from i386's <machine/endian.h>.
o Remove prototypes for non-existent bswapXX() functions.
o Include <machine/endian.h> in <arpa/inet.h> to define the
POSIX-required ntohl() family of functions.
o Do similar things to expose the ntohl() family in libstand, <netinet/in.h>,
and <sys/param.h>.
o Prepend underscores to the ntohl() family to help deal with
complexities associated with having MD (asm and inline) versions, and
having to prevent exposure of these functions in other headers that
happen to make use of endian-specific defines.
o Create weak aliases to the canonical function name to help deal with
third-party software forgetting to include an appropriate header.
o Remove some now unneeded pollution from <sys/types.h>.
o Add missing <arpa/inet.h> includes in userland.
Tested on: alpha, i386
Reviewed by: bde, jake, tmm
|
| 90850 |
18-Feb-2002 |
nyan |
Add bus_space_unmap() and bus_space_free() functions to release
a bus_space_handle allocated by bus_space_subregion().
|
| 90849 |
18-Feb-2002 |
nyan |
Add stubs for bus_space_unmap() and bus_space_free(). They are needed to
release a bus_space_handle allocated by bus_space_subregion().
|
| 90776 |
17-Feb-2002 |
deischen |
Use struct __ucontext in prototypes and associated functions instead of
ucontext_t. Forward declare struct __ucontext in <sys/signal.h> and
remove reliance on <sys/ucontext.h> being included.
While I'm here, also hide osigcontext types from userland; suggested
by bde.
Namespace pollution noticed by: Kevin Day <toasty@shell.dragondata.com>
|
| 90770 |
17-Feb-2002 |
nyan |
Correct typo.
|
| 90763 |
17-Feb-2002 |
nyan |
Move the bus_space_subregion function from the puc driver to the bus_space
sutff.
Reviewed by: jhay
|
| 90762 |
17-Feb-2002 |
nyan |
- Split the routine to initialize a bus_space_handle into the separate
function.
- Only access a bus_space_handle if the resource type is SYS_RES_MEMORY or
SYS_RES_IOPORT.
- Add the bus_space_subregion supports.
|
| 90725 |
16-Feb-2002 |
nyan |
Added #include <sys/systm.h>
|
| 90711 |
15-Feb-2002 |
wollman |
Resurrect one of the easiest changes from my big include files roll-up
patch from a year ago: give file flags their own type. This does not
(yet) change the type used by system calls or library functions.
The underlying type was chosen to match what is returned by stat().
|
| 90589 |
12-Feb-2002 |
dwmalone |
Move do_cpuid() from a identcpu.c into cpufunc.h.
|
| 90515 |
11-Feb-2002 |
bde |
Garbage-collect the "LOCORE" version of MPLOCKED.
|
| 90411 |
08-Feb-2002 |
jhb |
Apparently during the KSE M2 commit bzero() on the i386 was changed so that
it's first parameter was volatile. Catch i486_bzero() and i586_bzero()'s
prototypes up to this to quiet warnings.
|
| 90134 |
03-Feb-2002 |
markm |
Make the style a little bit more consistant by removing parameter
names from some prototypes. (Other prototypes here already have
these removed).
|
| 90024 |
31-Jan-2002 |
bde |
Finish revs.1.23 and 1.24 so that MCOUNT_ENTER really actually compiles
for SMP in the plain profiling case. It seems to work too.
This error was not detected by LINT because LINT only compiles the
GUPROF profiling case, which is is a superset of the plain profiling
case for !SMP but which is so broken for SMP that the buggy code is
not compiled.
|
| 89489 |
18-Jan-2002 |
peter |
Avoid __func__ string concatenation
|
| 89466 |
17-Jan-2002 |
bde |
Changed the type of pcb_flags from u_char to u_int and adjusted things.
This removes the only atomic operation on a char type in the entire
kernel.
|
| 89410 |
16-Jan-2002 |
peter |
Ensure that we set all the %cr0 bits to a known state for the AP's before
they make it through to userland. This should fix the p5-smp problem
without affecting the other cpus (eg: cyrix, see initcpu.c and the special
cache handling for these cpu types).
|
| 89175 |
10-Jan-2002 |
deischen |
Use a spare slot in the machine context for a flags word to indicate
whether the machine context is valid and whether the FPU state is
valid (saved).
Mark the machine context valid before copying it out when sending a
signal.
Approved by: -arch
|
| 89064 |
08-Jan-2002 |
msmith |
Gut this header; since physio_proc_init is never called, the code never does
anything more than multiply declare some unused variables.
|
| 88903 |
05-Jan-2002 |
peter |
Convert a bunch of 1 << PCPU_GET(cpuid) to PCPU_GET(cpumask).
|
| 88404 |
22-Dec-2001 |
gj |
Add support for the AVM Fritz!Card PCI version 2 controller.
MFC after: 4 weeks
|
| 88322 |
20-Dec-2001 |
jhb |
Introduce a standard name for the lock protecting an interrupt controller
and it's associated state variables: icu_lock with the name "icu". This
renames the imen_mtx for x86 SMP, but also uses the lock to protect
access to the 8259 PIC on x86 UP. This also adds an appropriate lock to
the various Alpha chipsets which fixes problems with Alpha SMP machines
dropping interrupts with an SMP kernel.
|
| 88118 |
18-Dec-2001 |
jhb |
Various assembly fixes mostly in the form of using the "+" modifier for
output operands to mark them as both input and output rather than listing
operands twice.
Reviewed by: bde
|
| 88117 |
18-Dec-2001 |
jhb |
Allow the ATOMIC_ASM() macro to pass in the constraints on the V parameter
since the char versions need to use either ax, bx, cx, or dx.
Submitted by: Peter Jeremy (mostly)
Recommended by: bde
|
| 88107 |
18-Dec-2001 |
obrien |
With GCC 3, we *must* use the GCC stdarg.h. We can no longer just make
_BSD_VA_LIST_ match what we think the compiler is doing.
|
| 88088 |
18-Dec-2001 |
jhb |
Modify the critical section API as follows:
- The MD functions critical_enter/exit are renamed to start with a cpu_
prefix.
- MI wrapper functions critical_enter/exit maintain a per-thread nesting
count and a per-thread critical section saved state set when entering
a critical section while at nesting level 0 and restored when exiting
to nesting level 0. This moves the saved state out of spin mutexes so
that interlocking spin mutexes works properly.
- Most low-level MD code that used critical_enter/exit now use
cpu_critical_enter/exit. MI code such as device drivers and spin
mutexes use the MI wrappers. Note that since the MI wrappers store
the state in the current thread, they do not have any return values or
arguments.
- mtx_intr_enable() is replaced with a constant CRITICAL_FORK which is
assigned to curthread->td_savecrit during fork_exit().
Tested on: i386, alpha
|
| 88085 |
17-Dec-2001 |
jhb |
Small cleanups to the SMP code:
- Axe inlvtlb_ok as it was completely redundant with smp_active.
- Remove references to non-existent variable and non-existent file
in i386/include/smp.h.
- Don't perform initializations local to each CPU while holding the
ap boot lock on i386 while an AP bootstraps itself.
- Reorganize the AP startup code some to unify the latter half of the
functions to bring an AP up. Eventually this might be broken out into
a MI function in subr_smp.c.
|
| 87886 |
14-Dec-2001 |
nyan |
Fixed to draw mouse cursor. The syscons driver for PC98 uses different
attributes from i386.
Submitted by: chi@bd.mbn.or.jp (Chiharu Shibata)
MFC after: 3 days
|
| 87721 |
12-Dec-2001 |
jhb |
Axe an unneeded PCPU_SET(spinlocks, NULL) that I missed earlier.
|
| 87702 |
11-Dec-2001 |
jhb |
Overhaul the per-CPU support a bit:
- The MI portions of struct globaldata have been consolidated into a MI
struct pcpu. The MD per-CPU data are specified via a macro defined in
machine/pcpu.h. A macro was chosen over a struct mdpcpu so that the
interface would be cleaner (PCPU_GET(my_md_field) vs.
PCPU_GET(md.md_my_md_field)).
- All references to globaldata are changed to pcpu instead. In a UP kernel,
this data was stored as global variables which is where the original name
came from. In an SMP world this data is per-CPU and ideally private to each
CPU outside of the context of debuggers. This also included combining
machine/globaldata.h and machine/globals.h into machine/pcpu.h.
- The pointer to the thread using the FPU on i386 was renamed from
npxthread to fpcurthread to be identical with other architectures.
- Make the show pcpu ddb command MI with a MD callout to display MD
fields.
- The globaldata_register() function was renamed to pcpu_init() and now
init's MI fields of a struct pcpu in addition to registering it with
the internal array and list.
- A pcpu_destroy() function was added to remove a struct pcpu from the
internal array and list.
Tested on: alpha, i386
Reviewed by: peter, jake
|
| 87599 |
10-Dec-2001 |
obrien |
Update to C99, s/__FUNCTION__/__func__/,
also don't use ANSI string concatenation.
|
| 87572 |
09-Dec-2001 |
obrien |
style(9)
|
| 87311 |
04-Dec-2001 |
jhb |
Add a missing open paren to a macro that's been broken (and apparently
unused) since rev 1.1 so it is at least correct.
Submitted by: Maxime Henrion <mux@qualys.com>
|
| 87158 |
01-Dec-2001 |
mike |
o Stop abusing MD headers with non-MD types.
o Hide nonstandard functions and types in <netinet/in.h> when
_POSIX_SOURCE is defined.
o Add some missing types (required by POSIX.1-200x) to <netinet/in.h>.
o Restore vendor ID from Rev 1.1 in <netinet/in.h> and make use of new
__FBSDID() macro.
o Fix some miscellaneous issues in <arpa/inet.h>.
o Correct final argument for the inet_ntop() function (POSIX.1-200x).
o Get rid of the namespace pollution from <sys/types.h> in
<arpa/inet.h>.
Reviewed by: fenner
Partially submitted by: bde
|
| 87063 |
28-Nov-2001 |
jhb |
Whitespace fixes so thre 386 versoion of __uint8_swap_uint32 is easier to
read.
|
| 86485 |
17-Nov-2001 |
peter |
Start bringing i386/pmap.c into line with cleanups that were done to
alpha pmap. In particular -
- pd_entry_t and pt_entry_t are now u_int32_t instead of a pointer.
This is to enable cleaner PAE and x86-64 support down the track sor
that we can change the pd_entry_t/pt_entry_t types to 64 bit entities.
- Terminate "unsigned *ptep, pte" with extreme prejudice and use the
correct pt_entry_t/pd_entry_t types.
- Various other cosmetic changes to match cleanups elsewhere.
- This eliminates a boatload of casts.
- use VM_MAXUSER_ADDRESS in place of UPT_MIN_ADDRESS in a couple of places
where we're testing user address space limits. Assuming the page tables
start directly after the end of user space is not a safe assumption.
There is still more to go.
|
| 86430 |
15-Nov-2001 |
sobomax |
Allow bit 21 of EFLAGS register (PSL_ID) be changed in the use-mode without
ill effects. This should fix problems threaded programs are having with
auto-detecting CPU type.
Reported by: Joe Clarke <marcus@marcuscom.com>
Tested by: Joe Clarke <marcus@marcuscom.com>
Reviewed by: jhb
MFC after: 1 week
|
| 86303 |
12-Nov-2001 |
jhb |
Use newer constraints for atomic_cmpset().
Requested by: bde
|
| 86301 |
12-Nov-2001 |
jhb |
Use newer constraints for inline assembly for an operand that is both an
input and an output by using the '+' modifier rather than listing the
operand in both the input and output sections.
Reviwed by: bde
|
| 85892 |
02-Nov-2001 |
mike |
o Add new header <sys/stdint.h>.
o Make <stdint.h> a symbolic link to <sys/stdint.h>.
o Move most of <sys/inttypes.h> into <sys/stdint.h>, as per C99.
o Remove <sys/inttypes.h>.
o Adjust includes in sys/types.h and boot/efi/include/ia64/efibind.h
to reflect new location of integer types in <sys/stdint.h>.
o Remove previously symbolicly linked <inttypes.h>, instead create a
new file.
o Add MD headers <machine/_inttypes.h> from NetBSD.
o Include <sys/stdint.h> in <inttypes.h>, as required by C99; and
include <machine/_inttypes.h> in <inttypes.h>, to fill in the
remaining requirements for <inttypes.h>.
o Add additional integer types in <machine/ansi.h> and
<machine/limits.h> which are included via <sys/stdint.h>.
Partially obtain from: NetBSD
Tested on: alpha, i386
Discussed on: freebsd-standards@bostonradio.org
Reviewed by: bde, fenner, obrien, wollman
|
| 85793 |
31-Oct-2001 |
mjacob |
Remove previous revision. smp_started back in subr_smp where it belongs.
|
| 85788 |
31-Oct-2001 |
mjacob |
Make the actual volatile int smp_started live *somewhere*. This is
a temporary fix so that we can compile kernels. I waited 30 minutes
for a response from the person who would likely know, but any longer
is too long to wait with breakage at ToT.
|
| 85733 |
30-Oct-2001 |
green |
Add kmupetext(), a function that expands the range of memory covered
by the profiler on a running system. This is not done sparsely, as
memory is cheaper than processor speed and each gprof mcount() and
mexitcount() operation is already very expensive.
Obtained from: NAI Labs CBOSS project
Funded by: DARPA
|
| 85449 |
25-Oct-2001 |
jhb |
Split the per-process Local Descriptor Table out of the PCB and into
struct mdproc.
Submitted by: Andrew R. Reiter <arr@watson.org>
Silence on: -current
|
| 85335 |
23-Oct-2001 |
mike |
Remove funky right justification.
Pointed out by: bde
|
| 85294 |
21-Oct-2001 |
des |
[partially forced commit due to pilot error in earlier commit attempt]
{set,fill}_{,fp,db}regs() fixup:
- Add dummy {set,fill}_dbregs() on architectures that don't have them.
- KSEfy the powerpc versions (struct proc -> struct thread).
- Some architectures had the prototypes in md_var.h, some in reg.h, and
some in both; for consistency, move them to reg.h on all platforms.
These functions aren't really MD (the implementation is MD, but the interface
is MI), so they should move to an MI header, but I haven't figured out which
one yet.
Run-tested on i386, build-tested on Alpha, untested on other platforms.
|
| 85278 |
21-Oct-2001 |
hm |
Add a driver for the Compaq Microcom 610 ISDN (Compaq series PSB2222I) ISA PnP
card.
Submitted by: Steve Looman
Reviewed by: hm
MFC after: 1 month
|
| 85191 |
19-Oct-2001 |
ru |
Fix the typedef of va_list.
|
| 85187 |
19-Oct-2001 |
obrien |
Try two on the preprocessing logic.
Reviewed by: ru
|
| 85183 |
19-Oct-2001 |
obrien |
Blah, fix braino where ru had to remind me of proper preprocessor syntax.
Bad fingers, no cookie.
|
| 85108 |
18-Oct-2001 |
obrien |
My attempts at minimizing the number of #def's got me in trouble.
|
| 85103 |
18-Oct-2001 |
hm |
Add experimental support for sending keypad facility messages.
MFC after: 2 months
|
| 85085 |
18-Oct-2001 |
obrien |
Add support for "__gnuc_va_list". Some overly "smart" libraries assume
the existence of the __gnuc_va_list type[*] because our compiler is GCC.
[*] __gnuc_va_list is defined in the GCC ginclude/stdarg.h replacement
headerwhich we don't use.
|
| 85083 |
17-Oct-2001 |
obrien |
Minor comment tweaking.
|
| 84812 |
11-Oct-2001 |
jhb |
Add missing includes of sys/ktr.h.
|
| 84783 |
10-Oct-2001 |
ps |
Make MAXTSIZ, DFLDSIZ, MAXDSIZ, DFLSSIZ, MAXSSIZ, SGROWSIZ loader
tunable.
Reviewed by: peter
MFC after: 2 weeks
|
| 84679 |
08-Oct-2001 |
jhb |
Allow atomic ops to be somewhat safely used in userland. We always use
lock prefixes in the userland case so that the binaries will work on both
SMP and UP systems.
|
| 84615 |
07-Oct-2001 |
nyan |
Rewrite the pc98 bus_space stuff.
The type of bus_space_tag_t is now a pointer to bus_space_tag structure,
and the bus_space_tag structure saves pointers to functions for direct
access and relocate access.
Added bsh_bam member to the bus_space_handle structure, it saves access
method either direct access or relocate access which is called by
bus_space_* functions.
Added the mecia device support. If the bs_da and bs_ra in bus tag are set
NEPC_io_space_tag and NEPC_mem_space_tag respectively, new bus_space stuff
changes the register of mecia automatically for 16bit access.
Obtained from: NetBSD/pc98
|
| 84593 |
06-Oct-2001 |
nyan |
- Moved the bus_dma declarations from bus_{at386,pc98}.h into bus_dma.h.
(bus_dma.h is repo-copied from bus_at386.h)
- Added '#include <machine/bus_dma.h>' into bus.h for backward compatibility.
|
| 84427 |
03-Oct-2001 |
bde |
Fixed a missing proc -> thread substitution.
Broke future detection of this bug in userland by not declaring kernel
prototypes in userland.
|
| 83757 |
21-Sep-2001 |
peter |
Introduce a new option, KVA_SPACE, which can be used to reconfigure
the size of the kernel virtual address space relatively painlessly.
Userland will adapt via the exported kernbase symbol. Increasing
this causes the user part of address space to reduce.
|
| 83651 |
18-Sep-2001 |
peter |
Cleanup and split of nfs client and server code.
This builds on the top of several repo-copies.
|
| 83644 |
18-Sep-2001 |
jhb |
Whitespace fixes.
|
| 83643 |
18-Sep-2001 |
jhb |
- If we ever do the per-cpu KTR stuff, the index won't be volatile as it
will be private to each CPU.
- Re-style(9) the globaldata structures. There really needs to be a MI
struct pcpu that has a MD struct mdpcpu member at some point.
|
| 83506 |
15-Sep-2001 |
dfr |
Fill out some gaps in ia64 DDB support. This involves generalising DDB's
breakpoint handling slightly to cope with the fact that ia64 instructions
are not located on byte boundaries.
|
| 83366 |
12-Sep-2001 |
julian |
KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.
Sorry john! (your next MFC will be a doosie!)
Reviewed by: peter@freebsd.org, dillon@freebsd.org
X-MFC after: ha ha ha ha
|
| 83363 |
12-Sep-2001 |
gj |
Increase AUTHNAME to 42 bytes for users of T-Online, which requires 41
bytes.
MFC after: 2 weeks
|
| 83291 |
10-Sep-2001 |
kris |
Fix some signed/unsigned integer confusion, and add bounds checking of
arguments to some functions.
Obtained from: NetBSD
Reviewed by: peter
MFC after: 2 weeks
|
| 83047 |
05-Sep-2001 |
obrien |
style(9) the structure definitions.
|
| 82971 |
04-Sep-2001 |
iwasaki |
Reenable RTC interrupts after wakeup. Some laptops have a problem
with system statistics monitoring tools (such as systat, vmstat...)
because of stopping RTC interrupts generation.
Restore all the timers (RTC and i8254) atomically.
Reviewed by: bde
MFC after: 1 week
|
| 82845 |
03-Sep-2001 |
yokota |
Fix the argument specifier for the PnP BIOS function 2
(PNP_SET_DEVNODE). The second argument is not a segment:offset
pointer, but a 16 bit short.
MFC after: 4 weeks
|
| 82530 |
30-Aug-2001 |
mike |
o Remove some GCCisms in src/powerpc/include/endian.h.
o Unify <machine/endian.h>'s across all architectures.
o Make bswapXX() functions use a different spelling of u_int16_t and
friends to reduce namespace pollution. The bswapXX() functions
don't actually exist, but we'll probably import these at some
point. Atleast one driver (if_de) depends on bswapXX() for big
endian cases.
o Deprecate byteorder(3) prototypes from <sys/types.h>, these are
now prototyped indirectly in <arpa/inet.h>.
o Deprecate in_addr_t and in_port_t typedefs in <sys/types.h>, these
are now typedef'd in <arpa/inet.h>.
o Change byteorder(3) prototypes to use standards compliant uint32_t
(spelled __uint32_t to reduce namespace pollution).
o Document new preferred headers and standards compliance.
Discussed with: bde
PR: 29946
Reviewed by: bmilekic
|
| 82313 |
25-Aug-2001 |
peter |
vm_page_zero_idle() is no longer MD.
|
| 82309 |
25-Aug-2001 |
peter |
Optionize UPAGES for the i386. As part of this I split some of the low
level implementation stuff out of machine/globaldata.h to avoid exposing
UPAGES to lots more places. The end result is that we can double
the kernel stack size with 'options UPAGES=4' etc.
This is mainly being done for the benefit of a MFC to RELENG_4 at some
point. -current doesn't really need this so much since each interrupt
runs on its own kstack.
|
| 82035 |
21-Aug-2001 |
imp |
The general conesnsus on irc was that pci bios for config registers
and such was just a bad idea and one that users should be forced to
enable if they want it. This patch introduces a hw.pci.enable_pcibios
tunable for those people. This does not impact the pcibios interrupt
routing at all.
Approved by: peter, msmith
|
| 82026 |
21-Aug-2001 |
peter |
Detect a certain type of PCIBIOS brain damage. For some reason,
some bios vendors took it apon themselves to "censor" the
host->pci bridges from PCIBIOS callers, even when the caller
explicitly asks for them. This includes certain Compaq machines
(eg: DL360) and some laptops.
If we detect this, shut down pcibios and revert to using IO
port bashing.
Under -current, apcica does a better job anyway.
|
| 81933 |
20-Aug-2001 |
dillon |
Limit the amount of KVM reserved for the buffer cache and for swap-meta
information. The default limits only effect machines with > 1GB of ram
and can be overriden with two new kernel conf variables VM_SWZONE_SIZE_MAX
and VM_BCACHE_SIZE_MAX, or with loader variables kern.maxswzone and
kern.maxbcache. This has the effect of leaving more KVM available for
sizing NMBCLUSTERS and 'maxusers' and should avoid tripups where a sysad
adds memory to a machine and then sees the kernel panic on boot due to
running out of KVM.
Also change the default swap-meta auto-sizing calculation to allocate half
of what it was previously allocating. The prior defaults were way too high.
Note that we cannot afford to run out of swap-meta structures so we still
stay somewhat conservative here.
|
| 81763 |
16-Aug-2001 |
obrien |
style(9) and make consistent across platforms
|
| 81727 |
15-Aug-2001 |
ache |
OFF_T -> OFF (more standard style)
|
| 81718 |
15-Aug-2001 |
ache |
Add OFF_T_MAX/OFF_T_MIN
|
| 81493 |
10-Aug-2001 |
jhb |
- Close races with signals and other AST's being triggered while we are in
the process of exiting the kernel. The ast() function now loops as long
as the PS_ASTPENDING or PS_NEEDRESCHED flags are set. It returns with
preemption disabled so that any further AST's that arrive via an
interrupt will be delayed until the low-level MD code returns to user
mode.
- Use u_int's to store the tick counts for profiling purposes so that we
do not need sched_lock just to read p_sticks. This also closes a
problem where the call to addupc_task() could screw up the arithmetic
due to non-atomic reads of p_sticks.
- Axe need_proftick(), aston(), astoff(), astpending(), need_resched(),
clear_resched(), and resched_wanted() in favor of direct bit operations
on p_sflag.
- Fix up locking with sched_lock some. In addupc_intr(), use sched_lock
to ensure pr_addr and pr_ticks are updated atomically with setting
PS_OWEUPC. In ast() we clear pr_ticks atomically with clearing
PS_OWEUPC. We also do not grab the lock just to test a flag.
- Simplify the handling of Giant in ast() slightly.
Reviewed by: bde (mostly)
|
| 81265 |
08-Aug-2001 |
peter |
Zap 'ptrace(PT_READ_U, ...)' and 'ptrace(PT_WRITE_U, ...)' since they
are a really nasty interface that should have been killed long ago
when 'ptrace(PT_[SG]ETREGS' etc came along. The entity that they
operate on (struct user) will not be around much longer since it
is part-per-process and part-per-thread in a post-KSE world.
gdb does not actually use this except for the obscure 'info udot'
command which does a hexdump of as much of the child's 'struct user'
as it can get. It carries its own #defines so it doesn't break
compiles.
|
| 80700 |
31-Jul-2001 |
jake |
Use a machine dependent type, Elf_Hashelt, for the elements of the elf
dynamic symbol table buckets and chains. The sparc64 toolchain uses 32
bit .hash entries, unlike other 64 bits architectures (alpha), which use
64 bit entries.
Discussed with: dfr, jdp
|
| 80399 |
26-Jul-2001 |
bmilekic |
- Do not handle the per-CPU containers in mbuf code as though the cpuids
were indices in a dense array. The cpuids are a sparse set and treat
them as such, setting up containers only for CPUs activated during
mb_init().
- Fix netstat(1) and systat(1) to treat the per-CPU stats area as a sparse
map, in accordance with the above.
This allows us to properly boot with certain CPUs disactivated. However, if
we later decide to re-activate said CPUs, we will barf until we decide to
implement CPU spinon/spinoff callback hooks to allow for said CPUs' per-CPU
containers to get configured on their activation.
Reported by: mjacob
Partially (sys/ diffs) Submitted by: mjacob
|
| 80081 |
21-Jul-2001 |
hm |
update step.
|
| 79734 |
14-Jul-2001 |
jhb |
Fix MCOUNT_ENTER() so it actually compiles in the profiling case.
Pointy hat to: me
Submitted by: Danny J. Zerkel <dzerkel@columbus.rr.com>
|
| 79630 |
12-Jul-2001 |
peter |
The #define for pcb_savefpu seems to do more harm than good.
|
| 79609 |
12-Jul-2001 |
peter |
Activate SSE/SIMD. This is the extra context switching support that
we are required to do if we let user processes use the extra 128 bit
registers etc.
This is the base part of the diff I got from:
http://www.issei.org/issei/FreeBSD/sse.html
I believe this is by: Mr. SUZUKI Issei <issei@issei.org>
SMP support apparently by: Takekazu KATO <kato@chino.it.okayama-u.ac.jp>
Test code by: NAKAMURA Kazushi <kaz@kobe1995.net>, see
http://kobe1995.net/~kaz/FreeBSD/SSE.en.html
I have fixed a couple of style(9) deviations. I have some followup
commits to fix a couple of non-style things.
|
| 78962 |
29-Jun-2001 |
jhb |
Add a new MI pointer to the process' trapframe p_frame instead of using
various differently named pointers buried under p_md.
Reviewed by: jake (in principle)
|
| 78908 |
28-Jun-2001 |
jhb |
Get kernel profiling on SMP systems closer to working by replacing the
mcount spin mutex with a very simple non-recursive spinlock implemented
using atomic operations.
|
| 78903 |
28-Jun-2001 |
bsd |
Provide access to the IA32 hardware debug registers from the ddb
kernel debugger. Proper use of these registers allows setting
hardware watchpoints for use in kernel debugging.
MFC after: 2 weeks
|
| 78808 |
26-Jun-2001 |
nyan |
Merged from sys/i386/include/bus_at386.h revision 1.14.
|
| 78425 |
18-Jun-2001 |
jhb |
Include sys/pcpu.h to get the prototype for globaldata_register() to quiet
a warning.
|
| 78353 |
16-Jun-2001 |
alex |
Fix "alignemnt" typo.
|
| 77931 |
09-Jun-2001 |
obrien |
Fix style of defines.
|
| 77800 |
06-Jun-2001 |
joerg |
Nuke the various poorly maintained copies of ioctl_fd.h. The file is
not machine-dependant, thus it has been moved out (repo-copied) into
<sys/fdcio.h>.
|
| 77626 |
02-Jun-2001 |
phk |
Properly wrap mtx_intr_enable() macro in "do $bla while (0)"
|
| 77584 |
01-Jun-2001 |
tmm |
This file is not needed any more, the definitions and declarations it
contained have been moved to i386/isa/icu.h and sys/interrupt.h.
|
| 77164 |
25-May-2001 |
hm |
Submitted by: Juha-Matti Liukkonen (Cubical Solutions Ltd) (jml@cubical.fi)
Add a CAPI (hardware independent) driver i4bcapi(4) and hardware driver
iavc (4) to support active CAPI-based BRI and PRI cards (currently AVM
B1 and T1 cards) to isdn4bsd.
|
| 77015 |
22-May-2001 |
bde |
Convert npx interrupts into traps instead of vice versa. This is much
simpler for npx exceptions that start as traps (no assembly required...)
and works better for npx exceptions that start as interrupts (there is
no longer a problem for nested interrupts).
Submitted by: original (pre-SMPng) version by luoqi
|
| 76785 |
18-May-2001 |
obrien |
Make _BSD_TIME_T_ (time_t) an `int' rather than `long'. This will help
flag errors where programmers assume time_t is a long, which it is not on
64-bit platforms.
Submitted by: bde
|
| 76784 |
18-May-2001 |
obrien |
Style changes -- revert ordering to mostly two revs ago.
Embellish some comments, fix tab'ing.
Requested by: bde
|
| 76701 |
16-May-2001 |
obrien |
Consistently define the rune types.
Follow NetBSD's lead and add a _BSD_MBSTATE_T_ type.
|
| 76700 |
16-May-2001 |
obrien |
Move the int typedefs to the top so they can be used in defining other types.
Ensure every platform has __offsetof.
Make multiple inclusion detection consistent with other
<platform>/include/*.h files.
|
| 76651 |
15-May-2001 |
jhb |
"Sir, the deorbit burn completed succesfully."
RIP {sys/machine}/ipl.h.
|
| 76650 |
15-May-2001 |
jhb |
Remove unneeded includes of sys/ipl.h and machine/ipl.h.
|
| 76588 |
14-May-2001 |
joerg |
Implement a few more floppy ioctl commands and IO options, namely:
. FD_CLRERR clears the error counter, thus re-enables kernel error
printf()s,
. FD_GSTAT obtains the last FDC operation state, if any,
. FDOPT_NOERRLOG (temporarily) turns off kernel printf() floppy
error logging,
. FDOPT_NOERROR makes the kernel ignore an FDC error, thus can
enable the transfer of an erroneous sector to the user application
All options are being cleared on (last) close.
Prime consumer of the last features will be fdread(1), to be committed
shortly.
(FD_CLRERR should be wired into fdcontrol(8), but then fdcontrol(8)
needs a major rewrite anyway.)
|
| 76434 |
10-May-2001 |
jhb |
- Use sched_lock and critical regions to ensure that LDT updates are thread
safe from preemption and concurrent access to the LDT.
- Move the prototype for i386_extend_pcb() to <machine/pcb_ext.h>.
Reviewed by: silence on -hackers
|
| 76166 |
01-May-2001 |
markm |
Undo part of the tangle of having sys/lock.h and sys/mutex.h included in
other "system" header files.
Also help the deprecation of lockmgr.h by making it a sub-include of
sys/lock.h and removing sys/lockmgr.h form kernel .c files.
Sort sys/*.h includes where possible in affected files.
OK'ed by: bde (with reservations)
|
| 76078 |
27-Apr-2001 |
jhb |
Overhaul of the SMP code. Several portions of the SMP kernel support have
been made machine independent and various other adjustments have been made
to support Alpha SMP.
- It splits the per-process portions of hardclock() and statclock() off
into hardclock_process() and statclock_process() respectively. hardclock()
and statclock() call the *_process() functions for the current process so
that UP systems will run as before. For SMP systems, it is simply necessary
to ensure that all other processors execute the *_process() functions when the
main clock functions are triggered on one CPU by an interrupt. For the alpha
4100, clock interrupts are delievered in a staggered broadcast fashion, so
we simply call hardclock/statclock on the boot CPU and call the *_process()
functions on the secondaries. For x86, we call statclock and hardclock as
usual and then call forward_hardclock/statclock in the MD code to send an IPI
to cause the AP's to execute forwared_hardclock/statclock which then call the
*_process() functions.
- forward_signal() and forward_roundrobin() have been reworked to be MI and to
involve less hackery. Now the cpu doing the forward sets any flags, etc. and
sends a very simple IPI_AST to the other cpu(s). AST IPIs now just basically
return so that they can execute ast() and don't bother with setting the
astpending or needresched flags themselves. This also removes the loop in
forward_signal() as sched_lock closes the race condition that the loop worked
around.
- need_resched(), resched_wanted() and clear_resched() have been changed to take
a process to act on rather than assuming curproc so that they can be used to
implement forward_roundrobin() as described above.
- Various other SMP variables have been moved to a MI subr_smp.c and a new
header sys/smp.h declares MI SMP variables and API's. The IPI API's from
machine/ipl.h have moved to machine/smp.h which is included by sys/smp.h.
- The globaldata_register() and globaldata_find() functions as well as the
SLIST of globaldata structures has become MI and moved into subr_smp.c.
Also, the globaldata list is only available if SMP support is compiled in.
Reviewed by: jake, peter
Looked over by: eivind
|
| 75724 |
20-Apr-2001 |
jhb |
Make the ap_boot_mtx mutex static.
|
| 75677 |
18-Apr-2001 |
imp |
Back out 1.103. It wasn't approved by the owner of the file and
introduced style bugs.
Submited by: bde
|
| 75570 |
17-Apr-2001 |
jhb |
Blow away the panic mutex in favor of using a single atomic_cmpset() on a
panic_cpu shared variable. I used a simple atomic operation here instead
of a spin lock as it seemed to be excessive overhead. Also, this can avoid
recursive panics if, for example, witness is broken.
|
| 75518 |
14-Apr-2001 |
markm |
Back out wrapping the asm ... ; bits in #ifndef lint macros. There
are some good reasons for not doing this, even if the linting of
the code breaks.
1) If lint were ever to understand the stuff inside the macros,
that would break the checks.
2) There are ways to use __GNUC__ to exclude overly specific
code.
3) (Not yet practical) Lint(1) needs to properlyu understand
all of te code we actually run.
Complained about by: bde
Education by: jake, jhb, eivind
|
| 75471 |
13-Apr-2001 |
markm |
Make this more lint-friendly. This file seems to be invoked in just
about any .c file that includes a .h, and lint produces copious
whining because of the asm ...; stuff.
|
| 75421 |
11-Apr-2001 |
jhb |
Rename the IPI API from smp_ipi_* to ipi_* since the smp_ prefix is just
"redundant noise" and to match the IPI constant namespace (IPI_*).
Requested by: bde
|
| 75397 |
10-Apr-2001 |
jhb |
Remove constants defining the bitmasks of the old giant kernel lock.
|
| 75396 |
10-Apr-2001 |
jhb |
Remove the old APIC I/O higher level IPI API in favor of the newer MI
API for IPI's that isn't tied to the Intel APIC. MD code can still use
the apic_ipi() function or dink with the apic directly if needed to send
MD IPI's.
|
| 75393 |
10-Apr-2001 |
jhb |
Remove the BETTER_CLOCK #ifdef's. The code is on by default and is here
to stay for the foreseeable future.
OK'd by: peter (the idea)
|
| 75392 |
10-Apr-2001 |
jhb |
Add an MI API for sending IPI's. I used the same API present on the alpha
because:
- it used a better namespace (smp_ipi_* rather than *_ipi),
- it used better constant names for the IPI's (IPI_* rather than
X*_OFFSET), and
- this API also somewhat exists for both alpha and ia64 already.
|
| 75256 |
06-Apr-2001 |
jhb |
Axe the per-cpu variable witness_spin_check as it was replaced by the
per-cpu spinlocks list.
|
| 75141 |
03-Apr-2001 |
imp |
De __P() while I'm here. Done as a separate commit since it is just
stylistic.
# Yes, this break K&R, but this file already used so many gcc extensions
# keeping K&R support seemed too anachronistic for me.
Didn't fix the bug where functions that can only be used in the kernel
are exported to userland.
|
| 75139 |
03-Apr-2001 |
imp |
Make this file C++ safe. It defines many useful functions (inb, outb)
that people use from userland in C++ programs. I've had this in my
tree for ages and just got bit by it not being in the real tree again.
This is a MFC candidate.
|
| 74912 |
28-Mar-2001 |
jhb |
Rework the witness code to work with sx locks as well as mutexes.
- Introduce lock classes and lock objects. Each lock class specifies a
name and set of flags (or properties) shared by all locks of a given
type. Currently there are three lock classes: spin mutexes, sleep
mutexes, and sx locks. A lock object specifies properties of an
additional lock along with a lock name and all of the extra stuff needed
to make witness work with a given lock. This abstract lock stuff is
defined in sys/lock.h. The lockmgr constants, types, and prototypes have
been moved to sys/lockmgr.h. For temporary backwards compatability,
sys/lock.h includes sys/lockmgr.h.
- Replace proc->p_spinlocks with a per-CPU list, PCPU(spinlocks), of spin
locks held. By making this per-cpu, we do not have to jump through
magic hoops to deal with sched_lock changing ownership during context
switches.
- Replace proc->p_heldmtx, formerly a list of held sleep mutexes, with
proc->p_sleeplocks, which is a list of held sleep locks including sleep
mutexes and sx locks.
- Add helper macros for logging lock events via the KTR_LOCK KTR logging
level so that the log messages are consistent.
- Add some new flags that can be passed to mtx_init():
- MTX_NOWITNESS - specifies that this lock should be ignored by witness.
This is used for the mutex that blocks a sx lock for example.
- MTX_QUIET - this is not new, but you can pass this to mtx_init() now
and no events will be logged for this lock, so that one doesn't have
to change all the individual mtx_lock/unlock() operations.
- All lock objects maintain an initialized flag. Use this flag to export
a mtx_initialized() macro that can be safely called from drivers. Also,
we on longer walk the all_mtx list if MUTEX_DEBUG is defined as witness
performs the corresponding checks using the initialized flag.
- The lock order reversal messages have been improved to output slightly
more accurate file and line numbers.
|
| 74900 |
28-Mar-2001 |
jhb |
- Switch from using save/disable/restore_intr to using critical_enter/exit
and change the u_int mtx_saveintr member of struct mtx to a critical_t
mtx_savecrit.
- On the alpha we no longer need a custom _get_spin_lock() macro to avoid
an extra PAL call, so remove it.
- Partially fix using mutexes with WITNESS in modules. Change all the
_mtx_{un,}lock_{spin,}_flags() macros to accept explicit file and line
parameters and rename them to use a prefix of two underscores. Inside
of kern_mutex.c, generate wrapper functions for
_mtx_{un,}lock_{spin,}_flags() (only using a prefix of one underscore)
that are called from modules. The macros mtx_{un,}lock_{spin,}_flags()
are mapped to the __mtx_* macros inside of the kernel to inline the
usual case of mutex operations and map to the internal _mtx_* functions
in the module case so that modules will use WITNESS and KTR logging if
the kernel is compiled with support for it.
|
| 74897 |
28-Mar-2001 |
jhb |
- Add the new critical_t type used to save state inside of critical
sections.
- Add implementations of the critical_enter() and critical_exit() functions
and remove restore_intr() and save_intr().
- Remove the somewhat bogus disable_intr() and enable_intr() functions on
the alpha as the alpha actually uses a priority level and not simple bit
flag on the CPU.
|
| 74670 |
23-Mar-2001 |
tmm |
Export intrnames and intrcnt as sysctls (hw.nintr, hw.intrnames and
hw.intrcnt).
Approved by: rwatson
|
| 74384 |
17-Mar-2001 |
peter |
Use a generic implementation of the Fowler/Noll/Vo hash (FNV hash).
Make the name cache hash as well as the nfsnode hash use it.
As a special tweak, create an unsigned version of register_t. This allows
us to use a special tweak for the 64 bit versions that significantly
speeds up the i386 version (ie: int64 XOR int64 is slower than int64
XOR int32).
The code layout is a little strange for the string function, but I was
able to get between 5 to 10% improvement over the original version I
started with. The layout affects gcc code generation choices and this way
was fastest on x86 and alpha.
Note that 'CPUTYPE=p3' etc makes a fair difference to this. It is
around 45% faster with -march=pentiumpro on a p6 cpu.
|
| 74283 |
15-Mar-2001 |
peter |
Kill the 4MB kernel limit dead. [I hope :-)].
For UP, we were using $tmp_stk as a stack from the data section. If the
kernel text section grew beyond ~3MB, the data section would be pushed
beyond the temporary 4MB P==V mapping. This would cause the trampoline
up to high memory to fault. The hack workaround I did was to use all of
the page table pages that we already have while preparing the initial
P==V mapping, instead of just the first one.
For SMP, the AP bootstrap process suffered the same sort of problem and
got the same treatment.
MFC candidate - this breaks on 4.x just the same..
Thanks to: Richard Todd <rmtodd@ichotolot.servalan.com>
|
| 74016 |
09-Mar-2001 |
jhb |
Fix mtx_legal2block. The only time that it is bad to block on a mutex is
if we hold a spin mutex, since we can trivially get into deadlocks if we
start switching out of processes that hold spinlocks. Checking to see if
interrupts were disabled was a sort of cheap way of doing this since most
of the time interrupts were only disabled when holding a spin lock. At
least on the i386. To fix this properly, use a per-process counter
p_spinlocks that counts the number of spin locks currently held, and
instead of checking to see if interrupts are disabled in the witness code,
check to see if we hold any spin locks. Since child processes always
start up with the sched lock magically held in fork_exit(), we initialize
p_spinlocks to 1 for child processes. Note that proc0 doesn't go through
fork_exit(), so it starts with no spin locks held.
Consulting from: cp
|
| 73875 |
06-Mar-2001 |
dwmalone |
Spell what was originally "unsigned long" as "unsigned long" again,
to cut down on some compiler warnings caused by lexically mismatched
types.
Reviewed by: bde
|
| 73324 |
02-Mar-2001 |
kato |
Merged from sys/i386/include/bus_at386.h revision 1.13.
|
| 73314 |
02-Mar-2001 |
mdodd |
version 1.7 made some changes to correct problems identifed by compiling
with egcs-1.1.1. bus_space_write_multi_2() had an extra operation that
should have been removed.
Remove it.
This fixes the panic when bus_space_write_multi_2() is used.
Obtained from: jake
|
| 73013 |
25-Feb-2001 |
peter |
Always use the ELF naming after the demise of asnames.h.
|
| 73011 |
25-Feb-2001 |
jake |
Remove the leading underscore from all symbols defined in x86 asm
and used in C or vice versa. The elf compiler uses the same names
for both. Remove asnames.h with great prejudice; it has served its
purpose.
Note that this does not affect the ability to generate an aout kernel
due to gcc's -mno-underscores option.
moral support from: peter, jhb
|
| 73001 |
25-Feb-2001 |
jake |
- Rename the lcall system call handler from Xsyscall to Xlcall_syscall
to be more like Xint0x80_syscall and less like c function syscall().
- Reduce code duplication between the int0x80 and lcall handlers by
shuffling the elfags into the right place, saving the sizeof the
instruction in tf_err and jumping into the common int0x80 code.
Reviewed by: peter
|
| 72930 |
23-Feb-2001 |
peter |
Activate USER_LDT by default. The new thread libraries are going to
depend on this. The linux ABI emulator tries to use it for some linux
binaries too. VM86 had a bigger cost than this and it was made default
a while ago.
Reviewed by: jhb, imp
|
| 72897 |
22-Feb-2001 |
jhb |
GC unused and now obsolete assertion macros.
|
| 72746 |
20-Feb-2001 |
jhb |
- Don't call clear_resched() in userret(), instead, clear the resched flag
in mi_switch() just before calling cpu_switch() so that the first switch
after a resched request will satisfy the request.
- While I'm at it, move a few things into mi_switch() and out of
cpu_switch(), specifically set the p_oncpu and p_lastcpu members of
proc in mi_switch(), and handle the sched_lock state change across a
context switch in mi_switch().
- Since cpu_switch() no longer handles the sched_lock state change, we
have to setup an initial state for sched_lock in fork_exit() before we
release it.
|
| 72700 |
19-Feb-2001 |
bde |
Removed all traces of T_ASTFLT (except for gaps where it was). It became
unused except in dead code when ast() was split off from trap().
|
| 72683 |
19-Feb-2001 |
bde |
Changed the aston() family to operate on a specified process instead of
always on curproc. This is needed to implement signal delivery properly
(see a future log message for kern_sig.c).
Debogotified the definition of aston(). aston() was defined in terms
of signotify() (perhaps because only the latter already operated on
a specified process), but aston() is the primitive.
Similar changes are needed in the ia64 versions of cpu.h and trap.c.
I didn't make them because the ia64 is missing the prerequisite changes
to make astpending and need_resched per-process and those changes are
too large to make without testing.
|
| 72678 |
19-Feb-2001 |
bde |
Fixed style bugs in clock.c rev.1.164 and cpu.h rev.1.52-1.53 -- declare
tsc_present in the right places (together with other variables of the
same linkage), and don't use messy ifdefs just to avoid exporting it in
some cases.
|
| 72555 |
17-Feb-2001 |
bde |
Fixed disordering in previous commit. "Fixed" a null comment in previous
commit by removing it.
|
| 72510 |
15-Feb-2001 |
ume |
Correct 2nd argument of getnameinfo(3) to socklen_t.
Reviewed by: itojun
|
| 72358 |
11-Feb-2001 |
markm |
RIP <machine/lock.h>.
Some things needed bits of <i386/include/lock.h> - cy.c now has its
own (only) copy of the COM_(UN)LOCK() macros, and IMASK_(UN)LOCK()
has been moved to <i386/include/apic.h> (AKA <machine/apic.h>).
Reviewed by: jhb
|
| 72276 |
10-Feb-2001 |
jhb |
- Make astpending and need_resched process attributes rather than CPU
attributes. This is needed for AST's to be properly posted in a preemptive
kernel. They are backed by two new flags in p_sflag: PS_ASTPENDING and
PS_NEEDRESCHED. They are still accesssed by their old macros:
aston(), astoff(), etc. For completeness, an astpending() macro has been
added to check for a pending AST, and clear_resched() has been added to
clear need_resched().
- Rename syscall2() on the x86 back to syscall() to be consistent with
other architectures.
|
| 72274 |
10-Feb-2001 |
jhb |
Add a macro mtx_intr_enable() to alter a spin lock such that interrupts
will be enabled when it is released.
|
| 72225 |
09-Feb-2001 |
jhb |
Woops, remove an obsolete reference to gd_cpu_lockid.
|
| 72219 |
09-Feb-2001 |
jhb |
Axe gd_cpu_lockid as it is no longer used.
|
| 72200 |
09-Feb-2001 |
bmilekic |
Change and clean the mutex lock interface.
mtx_enter(lock, type) becomes:
mtx_lock(lock) for sleep locks (MTX_DEF-initialized locks)
mtx_lock_spin(lock) for spin locks (MTX_SPIN-initialized)
similarily, for releasing a lock, we now have:
mtx_unlock(lock) for MTX_DEF and mtx_unlock_spin(lock) for MTX_SPIN.
We change the caller interface for the two different types of locks
because the semantics are entirely different for each case, and this
makes it explicitly clear and, at the same time, it rids us of the
extra `type' argument.
The enter->lock and exit->unlock change has been made with the idea
that we're "locking data" and not "entering locked code" in mind.
Further, remove all additional "flags" previously passed to the
lock acquire/release routines with the exception of two:
MTX_QUIET and MTX_NOSWITCH
The functionality of these flags is preserved and they can be passed
to the lock/unlock routines by calling the corresponding wrappers:
mtx_{lock, unlock}_flags(lock, flag(s)) and
mtx_{lock, unlock}_spin_flags(lock, flag(s)) for MTX_DEF and MTX_SPIN
locks, respectively.
Re-inline some lock acq/rel code; in the sleep lock case, we only
inline the _obtain_lock()s in order to ensure that the inlined code
fits into a cache line. In the spin lock case, we inline recursion and
actually only perform a function call if we need to spin. This change
has been made with the idea that we generally tend to avoid spin locks
and that also the spin locks that we do have and are heavily used
(i.e. sched_lock) do recurse, and therefore in an effort to reduce
function call overhead for some architectures (such as alpha), we
inline recursion for this case.
Create a new malloc type for the witness code and retire from using
the M_DEV type. The new type is called M_WITNESS and is only declared
if WITNESS is enabled.
Begin cleaning up some machdep/mutex.h code - specifically updated the
"optimized" inlined code in alpha/mutex.h and wrote MTX_LOCK_SPIN
and MTX_UNLOCK_SPIN asm macros for the i386/mutex.h as we presently
need those.
Finally, caught up to the interface changes in all sys code.
Contributors: jake, jhb, jasone (in no particular order)
|
| 72093 |
06-Feb-2001 |
asmodai |
Fix typo: compatability -> compatibility.
Compatability is not an existing english word.
|
| 71858 |
31-Jan-2001 |
peter |
Zap last remaining references to (and a use use of) of simple_locks.
|
| 71818 |
30-Jan-2001 |
peter |
Remove some leftovers from the CMAP* stuff in globaldata and the
BSP and AP startup.
|
| 71728 |
28-Jan-2001 |
bmilekic |
Move the setting of curproc to idleproc up earlier in ap_init(). The
problem is that a mutex lock, prior to this change, is acquired before
the curproc is set to idleproc, so we mess ourselves up by calling
the mutex lock routine with curproc == NULL.
Moving it up after the aps_ready spin-wait has us hopefully setting it
after idleproc is setup.
Solved by: jake (the allmighty) :-)
|
| 71727 |
28-Jan-2001 |
tegge |
Defer assignment of low level interrupt handlers for PCI interrupts
described in the MP table until something asks for the interrupt number
later on.
|
| 71674 |
26-Jan-2001 |
hm |
Add experimental support for Eicon.Diehl DIVA 2.0 and 2.02 ISA PnP cards.
Increment i4b minor revision (=step) so a buildworld or a make install in
/usr/src/sys/include is necessary to get isdnd and i4b kernel parts in sync.
|
| 71576 |
24-Jan-2001 |
jasone |
Convert all simplelocks to mutexes and remove the simplelock implementations.
|
| 71531 |
24-Jan-2001 |
jhb |
Remove unused locks: cpl, fast_intr, intr, mpintr.
|
| 71530 |
24-Jan-2001 |
jhb |
- Proc locking.
- P_OWEUPC -> PS_OWEUPC.
- Remove obsolete prototype for MD fork_return().
|
| 71529 |
24-Jan-2001 |
jhb |
- Remove Xforward_irq, cpl_lock, and fast_intr_lock.
- Add fork_exit.
|
| 71525 |
24-Jan-2001 |
jhb |
- Relocate portions of this file to get it into an order closer to that of
the alpha mp_machdep.c.
- Proc locking.
- Catch up to the P_FOO -> PS_FOO proc flags changes.
- Stick ap_init()'s prototype with the other prototypes.
- Remove the Xforwardirq IPI.
- Remove unused simplelocks.
- Don't try to psignal() from forward_statclock(), but set the appropriate
signal pending flag in p_sflag instead.
- Add in KTR_SMP tracepoints for various SMP functions. (Brought over
from the alpha port)
|
| 71490 |
24-Jan-2001 |
jhb |
Use queue macros.
|
| 71352 |
21-Jan-2001 |
jasone |
Move most of sys/mutex.h into kern/kern_mutex.c, thereby making the mutex
inline functions non-inlined. Hide parts of the mutex implementation that
should not be exposed.
Make sure that WITNESS code is not executed during boot until the mutexes
are fully initialized by SI_SUB_MUTEX (the original motivation for this
commit).
Submitted by: peter
|
| 71337 |
21-Jan-2001 |
jake |
Make intr_nesting_level per-process, rather than per-cpu. Setup
interrupt threads to run with it always >= 1, so that malloc can
detect M_WAITOK from "interrupt" context. This is also necessary
in order to context switch from sched_ithd() directly.
Reviewed By: peter
|
| 71321 |
21-Jan-2001 |
peter |
Remove APIC_INTR_DIAGNOSTIC - this has been disabled for some time now.
Remove some leftovers of removed SMP options.
|
| 71319 |
21-Jan-2001 |
peter |
Remove the MAYBE_PANIC and GUARD_CPU macros - unused.
|
| 71318 |
21-Jan-2001 |
jake |
Remove the per-cpu pages used for copy and zero-ing pages of memory
for SMP; just use the same ones as UP. These weren't used without
holding Giant anyway, and the routines that use them would have to
be protected from pre-emption to avoid migrating cpus.
|
| 71313 |
21-Jan-2001 |
jake |
Implement optimized PCPU accessors. These are necessary to support a
pre-emptable kernel. For variables of size 4 bytes or less they compile
to a single instruction, which does not allow a process to migrate cpus
in the middle, and get the value for the "wrong" cpu.
|
| 71292 |
20-Jan-2001 |
jake |
Simplify the i386 asm MTX_{ENTER,EXIT} macros to just call the
appropriate function, rather than doing a horse-and-buggy
acquire. They now take the mutex type as an arg and can be
used with sleep as well as spin mutexes.
|
| 71287 |
20-Jan-2001 |
jake |
- Make npx_intr INTR_MPSAFE and move acquiring Giant into the
function itself.
- Remove a hack to allow acquiring Giant from the npx asm trap
vector.
|
| 71247 |
19-Jan-2001 |
peter |
EEK! I missed a couple of places with the 24->32 interrupt change.
|
| 71246 |
19-Jan-2001 |
peter |
Remove #defines for the old lock function names and spl0/splz
|
| 71243 |
19-Jan-2001 |
peter |
apic_itrace_splz[] is unused
|
| 71240 |
19-Jan-2001 |
peter |
Remove the static splXXX functions and replace them by static __inline
stubs. Remove the xxx_imask variables which have been all but gone for
a while.
|
| 71211 |
18-Jan-2001 |
jhb |
Protect p_stat and p_oncpu with sched_lock in forward_signal().
|
| 71141 |
17-Jan-2001 |
jhb |
- Sort of lie and say that %eax is an output only and not an input for the
non-386 atomic_load_acq(). %eax is an input since its value is used in
the cmpxchg instruction, but we don't care what value it is, so setting
it to a specific value is just wasteful. Thus, it is being used without
being initialized as the warning stated, but it is ok for it to be used
because its value isn't important. Thus, we are only sort of lying when
we say it is an output only operand.
- Add "cc" to the clobber list for atomic_load_acq() since the cmpxchgl
changes ZF.
|
| 71103 |
16-Jan-2001 |
phk |
These files have been on deathrow for a couple of months, no appeal.
|
| 71092 |
16-Jan-2001 |
jhb |
Argh, disable the micro-ops again. I didn't test these adequately and
managed to lock up one of my machines in world again.
Pointy-hat to: me
|
| 71091 |
16-Jan-2001 |
jhb |
- Use "+a" instead of "=&a" for several constraints. This should fix
compiling errors where gcc would run out of registers.
- Add "cc" to the list of clobbers for micro-ops where we perform
instructions that alter %eflags.
- Use xchgl instead of cmpxchgl to release a spin lock. This could allow
for more efficient register allocation as we no longer mandate that %eax
be used.
- Reenable the optimized mutex micro-ops in the non-i386 case.
|
| 71085 |
16-Jan-2001 |
jhb |
- Fix atomic_load_* and atomic_store_* to generate functions for atomic.c
that modules can call.
- Remove the old gcc <= 2.8 versions of the atomic ops.
- Resort the order of some things in the file so that there is only
one #ifdef for KLD_MODULE, and so that all WANT_FUNCTIONS stuff is
moved to the bottom of the file.
- Remove ATOMIC_ACQ_REL() and just use explicit macros instead.
|
| 71024 |
14-Jan-2001 |
jhb |
Revert the previous revision now that atomic_store_rel_ptr() actually
works.
|
| 71023 |
14-Jan-2001 |
jhb |
Fix the atomic_load_acq() and atomic_store_rel() functions to properly
implement memory fences for the 486+. The 386 still uses versions w/o
memory fences as all operations on the 386 are not program ordered.
The 386 versions are not MP safe.
|
| 71005 |
14-Jan-2001 |
jhb |
Work around the broken atomic_store_rel_ptr() on the i386 arch by just
using atomic_cmpset_rel_ptr() instead for _release_lock_quick(). When
atomic_store_rel_ptr() is functional and MP safe, then this can be
reverted.
|
| 70954 |
12-Jan-2001 |
jake |
Change return ??? to return -1 in some #if 0'ed code.
|
| 70952 |
12-Jan-2001 |
jake |
Remove unused per-cpu variables inside_intr and ss_eflags.
|
| 70928 |
11-Jan-2001 |
jake |
- Remove compatibility macros for accessing per-cpu variables.
__FreeBSD_version 500015 can be used to detect their disappearance.
- Move the symbols for SMP_prvspace and lapic from globals.s to
locore.s.
- Remove globals.s with extreme prejudice.
|
| 70926 |
11-Jan-2001 |
hm |
Add infrastructure to support the ISDN itjc hardware driver.
Submitted by: Sergio de Souza Prallon <prallon@tmp.com.br>
|
| 70861 |
10-Jan-2001 |
jake |
Use PCPU_GET, PCPU_PTR and PCPU_SET to access all per-cpu variables
other then curproc.
|
| 70814 |
09-Jan-2001 |
peter |
Send the old if_wl in the old location to the Attic after a repo copy to
sys/dev/wi/*
|
| 70798 |
08-Jan-2001 |
jake |
Fix a warning. The type of globaldata.gd_prvspace has changed.
|
| 70723 |
06-Jan-2001 |
jake |
Implement accessors for per-cpu variables which don't depend on the
symbols in globals.s.
PCPU_GET(name) returns the value of the per-cpu variable
PCPU_PTR(name) returns a pointer to the per-cpu variable
PCPU_SET(name, val) sets the value of the per-cpu variable
In general these are not yet used, compatibility macros remain.
Unifdef SMP struct globaldata, this makes variables such as cpuid
available for UP as well.
Rebuilding modules is probably a good idea, but I believe old
modules will still work, as most of the old infrastructure
remains.
|
| 70714 |
06-Jan-2001 |
jake |
Use %fs to access per-cpu variables in uni-processor kernels the same
as multi-processor kernels. The old way made it difficult for kernel
modules to be portable between uni-processor and multi-processor
kernels. It is no longer necessary to jump through hoops.
- always load %fs with the private segment on entry to the kernel
- change the type of the self referntial pointer from struct privatespace
to struct globaldata
- make the globaldata symbol have value 0 in all cases, so the symbols
in globals.s are always offsets, not aliases for fields in globaldata
- define the globaldata space used for uniprocessor kernels in C, rather
than assembler
- change the assmebly language accessors to use %fs, add a macro
PCPU_ADDR(member, reg), which loads the register reg with the address
of the per-cpu variable member
|
| 70224 |
20-Dec-2000 |
takawata |
Add PECOFF (WIN32 Execution file format) support.
To use it, some dll is needed. And currently, the dll is only for NetBSD.
So one more kernel module is needed.
For more infomation,
http://chiharu.haun.org/peace/ .
Reviewed by: bp
|
| 69971 |
13-Dec-2000 |
jake |
Introduce a new potientially cleaner interface for accessing per-cpu
variables from i386 assembly language. The syntax is PCPU(member)
where member is the capitalized name of the per-cpu variable, without
the gd_ prefix. Example: movl %eax,PCPU(CURPROC). The capitalization
is due to using the offsets generated by genassym rather than the symbols
provided by linking with globals.o. asmacros.h is the wrong place for
this but it seemed as good a place as any for now. The old implementation
in asnames.h has not been removed because it is still used to de-mangle
the symbols used by the C variables for the UP case.
|
| 69892 |
12-Dec-2000 |
jhb |
Fix the assembly mutex macros to call the appropriate witness functions if
the witness code is compiled in. Without this, the witness code doesn't
notice that sched_lock is released by fork_trampoline() and thus gets all
confused about spin lock order later on.
|
| 69773 |
08-Dec-2000 |
jake |
Fix a jump to the wrong label, <sigh>. Put a period at the end of a
sentence in a comment.
Submitted by: bde
|
| 69770 |
08-Dec-2000 |
jhb |
Argh, revert the clobber changes. Since %ecx and %edx aren't call safe,
calling the C functions mtx_enter_hard() and mtx_exit_hard() clobbers them.
Note that %eax is also not call safe, but it is already clobbered due to
cmpxchg. However, now we are back to not compiling again, so these macros
are still left disabled for now.
|
| 69743 |
08-Dec-2000 |
jake |
Change the calling conventions of the MTX_ENTER macro to match
that of MTX_EXIT. Don't assume that the reg parameter to MTX_ENTER
holds curproc, load it explicitly. Put semi-colons at the end of
the macros to be more consistent and so its harder to forget them
when these change.
|
| 69740 |
08-Dec-2000 |
jhb |
Well, the previous commit wasn't entirely correct either. For now, just
disable the optimized mutex micro-operations for the non-I386_CPU case
and fall back to the C stubs that call the atomic_foo() inlines.
|
| 69728 |
07-Dec-2000 |
phk |
Move extern tsc_present outside function to quelch a warning.
|
| 69690 |
07-Dec-2000 |
jhb |
Fix broken register restraints that needlessly clobbered registers %ecx
and %edx resulting in gcc not having enough registers left to work with.
|
| 69658 |
06-Dec-2000 |
peter |
This is kind of a nasty hack, but it appears to solve the Compaq DL360
SMP problem. Compaq, in their infinite wisdom, forgot to put the IO apic
intpin #0 connection to the 8259 PIC into the mptable. This hack is to
look and see if intpin #0 has *no* table entry and adds a fake ExtInt
entry for the remap routines to use. isa/clock.c will still test the
interrupts. This entry is only ever used on an already broken system.
|
| 69651 |
06-Dec-2000 |
peter |
Move io_apic_{read,write} from apic_ipl.s (where they do not belong) into
mpapic.c. This gives us the benefit of C type checking. These functions
are not called in any critical paths and are not used by the interrupt
routines.
|
| 69646 |
06-Dec-2000 |
peter |
GC unused assembler function apic_eoi()
|
| 69586 |
05-Dec-2000 |
jake |
Remove the last of the MD netisr code. It is now all MI. Remove
spending, which was unused now that all software interrupts have
their own thread. Make the legacy schednetisr use an atomic op
for setting bits in the netisr mask.
Reviewed by: jhb
|
| 69578 |
04-Dec-2000 |
peter |
Cleanup some leftover lint from the old interrupt system.
Also, while here, run up to 32 interrupt sources on APIC systems.
Normalize INTREN/INTRDIS so they are the same on both UP and SMP systems
rather than sometimes a macro, and sometimes a function.
Reviewed by: jhb, jakeb
|
| 69570 |
04-Dec-2000 |
jake |
(1) Allow a stray lock prefix to be compiled out with the
MPLOCKED macro
(2) Use decimal 12 rather than hex 0xc in an addl
(3) Implement MTX_ENTER for the I386_CPU case
(4) Use semi-colons between instructions to allow MTX_ENTER
and MTX_ENTER_WITH_RECURSION to be assembled
(5) Use incl instead of incw to increment the recusion count
(6) 10 is not a valid label, use 7, 8 and 9 rather than 8, 9 and 10
(7) Sort numeric labels
Submitted by: bde (2, 4, and 5)
|
| 69521 |
02-Dec-2000 |
markm |
Namespace cleanup. Remove some #includes in favour of an explicit
declaration.
Asked for by: bde
|
| 69379 |
30-Nov-2000 |
marcel |
Don't use p->p_sigstk.ss_flags to keep state of whether the
process is on the alternate stack or not. For compatibility
with sigstack(2) state is being updated if such is needed.
We now determine whether the process is on the alternate
stack by looking at its stack pointer. This allows a process
to siglongjmp from a signal handler on the alternate stack
to the place of the sigsetjmp on the normal stack. When
maintaining state, this would have invalidated the state
information and causing a subsequent signal to be delivered
on the normal stack instead of the alternate stack.
PR: 22286
|
| 69377 |
30-Nov-2000 |
peter |
Increase NKPT from 17 to 30. This fixes the 4GB ram boot panic on both
-current and RELENG_4 with GENERIC.
NKPT is the number of initial bootstrap page table pages we create for
the kernel during startup. Once VM is up, we resize it as needed, but
with 4G ram, the size of the vm_page_t structures was pushing it over
the limit. The fact that trimmed down kernels boot on 4G ram machines
suggests that we were pretty close to the edge.
The "30" is arbitary, but smaller than the 'nkpt' variable on all
machines that I checked.
|
| 69334 |
28-Nov-2000 |
jhb |
Don't wait forever for CPUs to stop or restart. Instead, give up after a
timeout. If DIAGNOSTIC is turned on, then display a message to the console
with a map of which CPUs failed to stop or restart. This gives an SMP box
at least a fighting chance of getting into DDB if one of the other CPUs has
interrupts disabled.
|
| 69133 |
25-Nov-2000 |
alfred |
These files are mpsafe.
|
| 69006 |
21-Nov-2000 |
markm |
Assembler fixes.
Fix opcodes that were typed as ".byte 0xNN, 0xMM" when an older
assembler could not recognise the newer Pentium instructions.
Reviewed by: jhb
|
| 69003 |
21-Nov-2000 |
markm |
Add a consistent API to a feature that most modern CPUs have; a fast
counter register in-CPU.
This is to be used as a fast "timer", where linearity is more important
than time, and multiple lines in the linearity caused by multiple CPUs
in an SMP machine is not a problem.
This adds no code whatsoever to the FreeBSD kernel until it is actually
used, and then as a single-instruction inline routine (except for the
80386 and 80486 where it is some more inline code around nanotime(9).
Reviewed by: bde, kris, jhb
|
| 68974 |
20-Nov-2000 |
phk |
Make programs which still #include <machine/{mouse,console}.h> fail
at compiletime, with an explanatory error message. Previously they
would only get a warning.
These files will be finally removed 2001-01-15
|
| 68786 |
15-Nov-2000 |
jhb |
Declare the 'witness_spin_check' properly as a per-CPU variable in the
non-SMP case.
|
| 68684 |
13-Nov-2000 |
jhb |
Fix a bug with handling of the saved interrupt state for spin mutexes in
the MTX_EXIT_WITH_RECURSION() assembly macro (currently unused).
Submitted by: bde
|
| 68520 |
09-Nov-2000 |
marcel |
Make MINSIGSTKSZ machine dependent, and have the sigaltstack
syscall compare against a variable sv_minsigstksz in struct
sysentvec as to properly take the size of the machine- and
ABI dependent struct sigframe into account.
The SVR4 and iBCS2 modules continue to have a minsigstksz of
8192 to preserve behavior. The real values (if different) are
not known at this time. Other ABI modules use the real
values.
The native MINSIGSTKSZ is now defined as follows:
Arch MINSIGSTKSZ
---- -----------
alpha 4096
i386 2048
ia64 12288
Reviewed by: mjacob
Suggested by: bde
|
| 68517 |
09-Nov-2000 |
takawata |
Farewell our code. We will switch acpica code from Intel.
This code has help us comprehence ACPI spec .
Contributors of this code is as follows(except for FreeBSD commiter):
Yasuo Yokoyama,
Munehiro Matsuda,
and ALL acpi-jp@jp.freebsd.org people.
Thanks.
R.I.P.
|
| 68498 |
08-Nov-2000 |
asmodai |
Fix CMSG and ALIGN macro usage.
Previously we had to include <machine/param.h> or <sys/param.h> bogusly
due to the fact that <sys/socket.h> CMSG macros needed the ALIGN macro,
which was defined in param.h. However, including param.h was a disaster
for namespace pollution.
This solution, as contributed by shin a while ago, fixes it elegantly
by wrapping the definitions around some namespace pollution preventer
definitions.
This patch was long overdue.
This should allow any network programmer to use <sys/socket.h> as
before.
PR: 19971, 20530
Submitted by: Martin Kaeske <MartinKaeske@lausitz.net>
Mark Andrews <Mark.Andrews@nominum.com>
Patch submitted by: shin
Reviewed by: bde
|
| 68330 |
04-Nov-2000 |
obrien |
Our SHRT_MIN definition was actually 4 bits too big.
Submitted by: Bradley T. Hughes <bhughes@trolltech.com>
|
| 68077 |
31-Oct-2000 |
roger |
Fix typo in comments
|
| 67769 |
28-Oct-2000 |
bde |
Quick fix for namespace problems which broke many ports. Spell
uint16_t as "unsigned short" like it used to be and uint32_t as
"unsigned int" not like it used to be (was: "unsigned long").
|
| 67740 |
28-Oct-2000 |
jhb |
The x86 atomic operations are already locked, so they do not need an
additional locked instruction to guarantee a write barrier for the acquire
variants.
Approved by: dfr
Pointy hat to: jhb
|
| 67708 |
27-Oct-2000 |
phk |
Convert all users of fldoff() to offsetof(). fldoff() is bad
because it only takes a struct tag which makes it impossible to
use unions, typedefs etc.
Define __offsetof() in <machine/ansi.h>
Define offsetof() in terms of __offsetof() in <stddef.h> and <sys/types.h>
Remove myriad of local offsetof() definitions.
Remove includes of <stddef.h> in kernel code.
NB: Kernelcode should *never* include from /usr/include !
Make <sys/queue.h> include <machine/ansi.h> to avoid polluting the API.
Deprecate <struct.h> with a warning. The warning turns into an error on
01-12-2000 and the file gets removed entirely on 01-01-2001.
Paritials reviews by: various.
Significant brucifications by: bde
|
| 67694 |
27-Oct-2000 |
bde |
Declare or #define per-cpu globals in <machine/globals.h> in all cases.
The i386 UP case was messily different.
|
| 67641 |
26-Oct-2000 |
roger |
Add new ioctls for userland access to the MSP device
|
| 67603 |
26-Oct-2000 |
hm |
Add infrastructure for Cologne Chip HFC-S PCI driver.
Increment isdn4bsd step.
|
| 67587 |
25-Oct-2000 |
jhb |
- Add atomic_cmpset_{acq_,rel_,}_long
- Add in atomic operations for 8-bit, 16-bit, and 32-bit integers
|
| 67551 |
25-Oct-2000 |
jhb |
- Overhaul the software interrupt code to use interrupt threads for each
type of software interrupt. Roughly, what used to be a bit in spending
now maps to a swi thread. Each thread can have multiple handlers, just
like a hardware interrupt thread.
- Instead of using a bitmask of pending interrupts, we schedule the specific
software interrupt thread to run, so spending, NSWI, and the shandlers
array are no longer needed. We can now have an arbitrary number of
software interrupt threads. When you register a software interrupt
thread via sinthand_add(), you get back a struct intrhand that you pass
to sched_swi() when you wish to schedule your swi thread to run.
- Convert the name of 'struct intrec' to 'struct intrhand' as it is a bit
more intuitive. Also, prefix all the members of struct intrhand with
'ih_'.
- Make swi_net() a MI function since there is now no point in it being
MD.
Submitted by: cp
|
| 67487 |
24-Oct-2000 |
obrien |
* Update comments
* convert decimal constants to hex
Submitted by: bde
* Add ISO-C99 long long limits
|
| 67473 |
23-Oct-2000 |
mjacob |
Move bogus proc reference stuff into <machine/globals.h>. There is no
more include file including <sys/proc.h>, but there still is this wonky
and (causes warnings on i386) reference in globals.h.
CURTHD is now defined in <machine/globals.h> as well. The correct thing
to do is provide a platform function for this.
|
| 67468 |
23-Oct-2000 |
non |
Add PC-Card/ISA SCSI host adpater drivers from NetBSD/pc98
(a NetBSD port for NEC PC-98x1 machines). They are ncv for NCR 53C500,
nsp for Workbit Ninja SCSI-3, and stg for TMC 18C30 and 18C50.
I thank NetBSD/pc98 and bsd-nomads people.
Obtained from: NetBSD/pc98
|
| 67460 |
23-Oct-2000 |
phk |
Get rid of the last traces of ACTUALLY_LKM_NOT_KERNEL
|
| 67442 |
22-Oct-2000 |
nyan |
Moved prototypes of isa_alloc_resourcev() and isa_load_resourcev() to
isa/isavar.h, and added needed includes.
|
| 67403 |
20-Oct-2000 |
jhb |
Define the mtx_legal2block() macro used in the witness code that managed
to get lost during the MI mutex conversion.
Reported by: Steve Kargl <sgk@troutmask.apl.washington.edu>
|
| 67365 |
20-Oct-2000 |
jhb |
Catch up to moving headers:
- machine/ipl.h -> sys/ipl.h
- machine/mutex.h -> sys/mutex.h
|
| 67352 |
20-Oct-2000 |
jhb |
- Make the mutex code almost completely machine independent. This greatly
reducues the maintenance load for the mutex code. The only MD portions
of the mutex code are in machine/mutex.h now, which include the assembly
macros for handling mutexes as well as optionally overriding the mutex
micro-operations. For example, we use optimized micro-ops on the x86
platform #ifndef I386_CPU.
- Change the behavior of the SMP_DEBUG kernel option. In the new code,
mtx_assert() only depends on INVARIANTS, allowing other kernel developers
to have working mutex assertiions without having to include all of the
mutex debugging code. The SMP_DEBUG kernel option has been renamed to
MUTEX_DEBUG and now just controls extra mutex debugging code.
- Abolish the ugly mtx_f hack. Instead, we dynamically allocate
seperate mtx_debug structures on the fly in mtx_init, except for mutexes
that are initiated very early in the boot process. These mutexes
are declared using a special MUTEX_DECLARE() macro, and use a new
flag MTX_COLD when calling mtx_init. This is still somewhat hackish,
but it is less evil than the mtx_f filler struct, and the mtx struct is
now the same size with and without mutex debugging code.
- Add some micro-micro-operation macros for doing the actual atomic
operations on the mutex mtx_lock field to make it easier for other archs
to override/optimize mutex ops if needed. These new tiny ops also clean
up the code in some places by replacing long atomic operation function
calls that spanned 2-3 lines with a short 1-line macro call.
- Don't call mi_switch() from mtx_enter_hard() when we block while trying
to obtain a sleep mutex. Calling mi_switch() would bogusly release
Giant before switching to the next process. Instead, inline most of the
code from mi_switch() in the mtx_enter_hard() function. Note that when
we finally kill Giant we can back this out and go back to calling
mi_switch().
|
| 67351 |
20-Oct-2000 |
jhb |
- Expand the set of atomic operations to optionally include memory barriers
in most of the atomic operations. Now for these operations, you can
use the normal atomic operation, you can use the operation with a read
barrier, or you can use the operation with a write barrier. The function
names follow the same semantics used in the ia64 instruction set. An
atomic operation with a read barrier has the extra suffix 'acq', due to
it having "acquire" semantics. An atomic operation with a write barrier
has the extra suffix 'rel'. These suffixes are inserted between the
name of the operation to perform and the typename. For example, the
atomic_add_int() function now has 3 variants:
- atomic_add_int() - this is the same as the previous function
- atomic_add_acq_int() - this function combines the add operation with a
read memory barrier
- atomic_add_rel_int() - this function combines the add operation with a
write memory barrier
- Add 'ptr' to the list of types that we can perform atomic operations
on. This allows one to do atomic operations on uintptr_t's. This is
useful in the mutex code, for example, because the actual mutex lock is
a pointer.
- Add two new operations for doing loads and stores with memory barriers.
The new load operations use a read barrier before the load, and the
new store operations use a write barrier after the load. For example,
atomic_load_acq_int() will atomically load an integer as well as
enforcing a read barrier.
|
| 67350 |
20-Oct-2000 |
jhb |
Axe the barrier_{read,write,rw}() helper functions as this method of
doing memory barriers doesn't really scale well for the ia64. Also,
memory barriers are more a property of the CPU than bus space.
Requested by: dfr
|
| 67346 |
20-Oct-2000 |
kato |
Convert the type of bus_space_handle_t of pc98 from structure into
pointer to structure.
Reviewed by: nyan
|
| 67310 |
19-Oct-2000 |
msmith |
Add PCI BIOS function codes for IRQ routing fetch and route.
|
| 67285 |
18-Oct-2000 |
jhb |
Add in a simple API for memory barriers to machine/bus.h:
- barrier_read() enforces a memory read barrier
- barrier_write() enforces a memory write barrier
- barrier_rw() enforces a memory read/write barrier
|
| 67281 |
18-Oct-2000 |
hm |
Add a debug flag bit for a new driver.
|
| 67247 |
17-Oct-2000 |
ps |
Implement write combining for crashdumps. This is useful when
write caching is disabled on both SCSI and IDE disks where large
memory dumps could take up to an hour to complete.
Taking an i386 scsi based system with 512MB of ram and timing (in
seconds) how long it took to complete a dump, the following results
were obtained:
Before: After:
WCE TIME WCE TIME
------------------ ------------------
1 141.820972 1 15.600111
0 797.265072 0 65.480465
Obtained from: Yahoo!
Reviewed by: peter
|
| 67223 |
16-Oct-2000 |
imp |
Add types and prototypes.
Submitted by: msmith
|
| 67214 |
16-Oct-2000 |
brian |
Move __uint16_swap_uint32, __uint8_swap_uint32 and
__uint8_swap_uint16 inside __GNUC__.
Reviewed by: bde
|
| 67170 |
15-Oct-2000 |
brian |
Remove namespace polution (x -> __x) introduced in the last
revision.
Pointed out by: bde
|
| 67158 |
15-Oct-2000 |
phk |
Move DELAY() from <machine/clock.h> to <sys/systm.h>
|
| 67129 |
15-Oct-2000 |
brian |
Redefine __word_swap_long, __byte_swap_long and __byte_swap_word
as inline functions, renaming them to __uint16_swap_uint32,
__uint8_swap_uint32 and __uint8_swap_uint16.
Doing it properly suggested by: msmith
Reviewed by: msmith
|
| 67030 |
12-Oct-2000 |
bde |
Removed unused include of <machine/lock.h>. The locking interface stopped
being (ab)used here in rev.1.97.
|
| 67014 |
12-Oct-2000 |
bde |
Moved the declaration of astpending to the correct place.
This shouldn't affect the alpha or ia64, since they don't have a
variable named astpending. The alpha still has 2 declarations of
this nonexistent variable.
|
| 67011 |
12-Oct-2000 |
bde |
Moved the definitions of AST_PENDING and AST_RESCHED to the correct place.
|
| 66931 |
10-Oct-2000 |
hm |
Set i4b version number to 0.96.00.
It is (nearly) identical to i4b-00.96.00-beta-101000.tar.gz
|
| 66873 |
09-Oct-2000 |
hm |
update to i4b version 0.95.04
|
| 66860 |
09-Oct-2000 |
phk |
Initiate deorbit burn sequence for <machine/mouse.h>.
Replace all in-tree uses with <sys/mouse.h> which repo-copied a few
moments ago from src/sys/i386/include/mouse.h by peter.
This is also the appropriate fix for exo-tree sources.
Put warnings in <machine/mouse.h> to discourage use.
November 15th 2000 the warnings will be converted to errors.
January 15th 2001 the <machine/mouse.h> files will be removed.
|
| 66834 |
08-Oct-2000 |
phk |
Initiate deorbit burn sequence for <machine/console.h>.
Replace all in-tree uses with necessary subset of <sys/{fb,kb,cons}io.h>.
This is also the appropriate fix for exo-tree sources.
Put warnings in <machine/console.h> to discourage use.
November 15th 2000 the warnings will be converted to errors.
January 15th 2001 the <machine/console.h> files will be removed.
|
| 66802 |
08-Oct-2000 |
bmilekic |
Cleanup comment in machine/param.h regarding mbuf-related sizes, and get rid
of MCLOFSET, which does not appear to be used anywhere anymore, and if it is,
it probably shouldn't be.
|
| 66739 |
06-Oct-2000 |
bde |
Work around a bug by adding struct tags. gcc-2.95 apparently gets the
check in the [basic.link] section of the C++ standard wrong. gcc-2.7.2.3
apparently doesn't do the check, so the bug doesn't affect RELENG_3.
PR: 16170, 21427
Submitted by: Max Khon <fjoe@lark.websci.ru> (i386 version)
Discussed with: jdp
|
| 66716 |
06-Oct-2000 |
jhb |
- Change fast interrupts on x86 to push a full interrupt frame and to
return through doreti to handle ast's. This is necessary for the
clock interrupts to work properly.
- Change the clock interrupts on the x86 to be fast instead of threaded.
This is needed because both hardclock() and statclock() need to run in
the context of the current process, not in a separate thread context.
- Kill the prevproc hack as it is no longer needed.
- We really need Giant when we call psignal(), but we don't want to block
during the clock interrupt. Instead, use two p_flag's in the proc struct
to mark the current process as having a pending SIGVTALRM or a SIGPROF
and let them be delivered during ast() when hardclock() has finished
running.
- Remove CLKF_BASEPRI, which was #ifdef'd out on the x86 anyways. It was
broken on the x86 if it was turned on since cpl is gone. It's only use
was to bogusly run softclock() directly during hardclock() rather than
scheduling an SWI.
- Remove the COM_LOCK simplelock and replace it with a clock_lock spin
mutex. Since the spin mutex already handles disabling/restoring
interrupts appropriately, this also lets us axe all the *_intr() fu.
- Back out the hacks in the APIC_IO x86 cpu_initclocks() code to use
temporary fast interrupts for the APIC trial.
- Add two new process flags P_ALRMPEND and P_PROFPEND to mark the pending
signals in hardclock() that are to be delivered in ast().
Submitted by: jakeb (making statclock safe in a fast interrupt)
Submitted by: cp (concept of delaying signals until ast())
|
| 66715 |
06-Oct-2000 |
jhb |
currentldt is now a "special" global-data variable, and as such, there
is no actual currentldt integer variable directly. Thus, don't claim that
there is.
|
| 66714 |
06-Oct-2000 |
jhb |
Interrupt frames don't include the saved cpl anymore since cpl is dead.
|
| 66698 |
05-Oct-2000 |
jhb |
- Heavyweight interrupt threads on the alpha for device I/O interrupts.
- Make softinterrupts (SWI's) almost completely MI, and divorce them
completely from the x86 hardware interrupt code.
- The ihandlers array is now gone. Instead, there is a MI shandlers array
that just contains SWI handlers.
- Most of the former machine/ipl.h files have moved to a new sys/ipl.h.
- Stub out all the spl*() functions on all architectures.
Submitted by: dfr
|
| 66696 |
05-Oct-2000 |
jhb |
Replace loadandclear() with atomic_readandclear_int().
|
| 66695 |
05-Oct-2000 |
jhb |
Add atomic_readandclear_int and atomic_readandclear_long.
|
| 66692 |
05-Oct-2000 |
jhb |
Make the gd_currentldt member in struct globaldata unconditional so
that this header doesn't depend on USER_LDT. This fixes the USER_LDT
breakage with SMP kernels.
|
| 66614 |
04-Oct-2000 |
jasone |
Reduce userland namespace polution.
|
| 66537 |
02-Oct-2000 |
iwasaki |
Fix StallOp implementaion. I've noticed that StallOp corresponds to
OsdSleepUsec(), SleepOp corresponds to OsdSleep() by reading ACPICA
source code.
- Add OsdSleepUsec() which uses DELAY() simply.
- Change unit of acpi_sleep() argument; microseconds to milliseconds.
|
| 66529 |
02-Oct-2000 |
msmith |
Move the i386 PCI attachment code out of i386/isa back into i386/pci.
Split out the configuration space access primitives, as these are needed
elsewhere as well.
|
| 66522 |
02-Oct-2000 |
peter |
Put on my nuclear-grade asbestos suit and cvs rm the old, broken, sound
drivers (again). These drivers have not compiled for 5-6 months.
Now that the new sound code supports MIDI, the major reason we had for
reviving it is gone. It is a far better investment polishing the new
midi code than trying to keep this on life support. Come 5.0-REL, if
there are major shortcomings in the pcm sound driver then maybe we can
rethink this, but until then we should focus on pcm.
Remember, these have not been compilable since ~April-May this year.
|
| 66502 |
01-Oct-2000 |
iwasaki |
Remove ACPI_NO_OSDFUNC_INLINE option from kernel configuration. Now
that it's enabled in acpireg.h only if DIAGNOSTIC option is specified.
ACPICA OSD functions will be compiled in machine/acpi_machdep.c again
tentatively (if DIAGNOSTIC option is specified).
# Should we have acpica_osd.c ?
|
| 66501 |
01-Oct-2000 |
iwasaki |
One more update against header file name changing.
|
| 66491 |
30-Sep-2000 |
iwasaki |
- Add acpi_disable_events() and set it with EVENTHANDLER_REGISTER in order to
avoid power on again problem after acpi_soft_off() calling.
- Implement SleepOp/StallOp in AML interpreter. Also provide ACPICA
compatibility.
- Minor changes on __inline function declaration in acpica_osd.h
(obtained from NetBSD porting).
|
| 66489 |
30-Sep-2000 |
msmith |
More updates to the ACPI code:
- Move all register I/O into acpi_io.c
- Move event handling into acpi_event.c
- Reorganise headers into acpivar/acpireg/acpiio
- Move find-RSDT and find-ACPI-owned-memory into acpi_machdep
- Allocate all resources (except those detailed only by AML)
as real resources. Add infrastructure that will make adding
resource support to AML code easy.
- Remove all ACPI #ifdefs in non-ACPI code
- Removed unnecessary includes
- Minor style and commenting fixes
Reviewed by: iwasaki
|
| 66441 |
29-Sep-2000 |
peter |
First shot at identifying the Pentum 4 acording to our reading of the
the cpu_id extensions in the Intel docs. There is more info available.
See the following URL for more details.
http://developer.intel.com/design/processor/future/manuals/CPUID_Supplement.htm
Requested by: Intel
|
| 66416 |
28-Sep-2000 |
peter |
Get out the roto-rooter and clean up the abuse of nexus ivars by the
i386/isa/pcibus.c. This gets -current running again on multiple host->pci
machines after the most recent nexus commits. I had discussed this with
Mike Smith, but ended up doing it slightly differently to what we
discussed as it turned out cleaner this way. Mike was suggesting creating
a new resource (SYS_RES_PCIBUS) or something and using *_[gs]et_resource(),
but IMHO that wasn't ideal as SYS_RES_* is meant to be a global platform
property, not a quirk of a given implementation. This does use the ivar
methods but does so properly. It also now prints the physical pci bus that
a host->pci bridge (pcib) corresponds to.
|
| 66328 |
24-Sep-2000 |
jhb |
Fix the assmebly mutex macros to handle saving/restoring interrupt state
properly. Fix the recursive mutex macros to actually compile. At the
moment we only use MTX_EXIT anyways.
|
| 66296 |
23-Sep-2000 |
ps |
Move MAXCPU from machine/smp.h to machine/param.h to fix breakage
with !SMP kernels. Also, replace NCPUS with MAXCPU since they are
redundant.
|
| 66280 |
23-Sep-2000 |
jasone |
#include <sys/proc.h> in order to get curproc. This seems to be the lesser
of two evils; the greater evil is requiring sys/proc.h to be included
before including machine/mutex.h.
|
| 66277 |
22-Sep-2000 |
ps |
Remove the NCPU, NAPIC, NBUS, NINTR config options. Make NAPIC,
NBUS, NINTR dynamic and set NCPU to a maximum of 16 under SMP.
Reviewed by: peter
|
| 66211 |
22-Sep-2000 |
jhb |
Teach MTX_EXIT_RECURSE that the recursion count is a 32-bit integer,
not a 16-bit one.
|
| 66174 |
21-Sep-2000 |
bsd |
Add a couple of debug register helper functions to assist in setting
and clearing watchpoints.
Reviewed by: jwd@FreeBSD.org, -hackers@
|
| 65932 |
16-Sep-2000 |
phk |
Make LINT compile.
|
| 65856 |
14-Sep-2000 |
jhb |
Remove the mtx_t, witness_t, and witness_blessed_t types. Instead, just
use struct mtx, struct witness, and struct witness_blessed.
Requested by: bde
|
| 65822 |
13-Sep-2000 |
jhb |
- Remove the inthand2_t type and use the equivalent driver_intr_t type from
newbus for referencing device interrupt handlers.
- Move the 'struct intrec' type which describes interrupt sources into
sys/interrupt.h instead of making it just be a x86 structure.
- Don't create 'ithd' and 'intrec' typedefs, instead, just use 'struct ithd'
and 'struct intrec'
- Move the code to translate new-bus interrupt flags into an interrupt thread
priority out of the x86 nexus code and into a MI ithread_priority()
function in sys/kern/kern_intr.c.
- Remove now-uneeded x86-specific headers from sys/dev/ata/ata-all.c and
sys/pci/pci_compat.c.
|
| 65782 |
12-Sep-2000 |
jhb |
Clean up process accounting some more. Unfortunately, it is still not
quite right on i386 as the CPU who runs statclock() doesn't have a valid
clockframe to calculate statistics with.
|
| 65713 |
11-Sep-2000 |
jhb |
When doing statistics for statclock on other CPU's, use the other CPUs'
idleproc pointers instead of our own for comparisons.
Submitted by: tegge
|
| 65651 |
09-Sep-2000 |
jasone |
Style cleanups. No functional changes.
|
| 65650 |
09-Sep-2000 |
jasone |
Add file and line arguments to WITNESS_ENTER() and WITNESS_EXIT, since
__FILE__ and __LINE__ don't get expanded usefully in inline functions.
Add const to all witness*() arguments that are filenames.
|
| 65624 |
08-Sep-2000 |
jasone |
Rename mtx_enter(), mtx_try_enter(), and mtx_exit() and wrap them with cpp
macros that expand to pass filename and line number information. This is
necessary since we're using inline functions instead of macros now.
Add const to the filename pointers passed througout the mtx and witness
code.
|
| 65620 |
08-Sep-2000 |
jhb |
Remove an unneeded extern declaration of cp_time.
|
| 65597 |
08-Sep-2000 |
jake |
Really fix USER_LDT. (Don't use currentldt as an L-value.)
|
| 65575 |
07-Sep-2000 |
jhb |
Test for both SMP and I386_CPU being set before generating an error.
|
| 65557 |
07-Sep-2000 |
jasone |
Major update to the way synchronization is done in the kernel. Highlights
include:
* Mutual exclusion is used instead of spl*(). See mutex(9). (Note: The
alpha port is still in transition and currently uses both.)
* Per-CPU idle processes.
* Interrupts are run in their own separate kernel threads and can be
preempted (i386 only).
Partially contributed by: BSDi (BSD/OS)
Submissions by (at least): cp, dfr, dillon, grog, jake, jhb, sheldonh
|
| 65514 |
06-Sep-2000 |
phk |
Introduce atomic_cmpset_int() and atomic_cmpset_long() from SMPng a
few hours earlier than the rest.
The next DEVFS commit needs these functions.
Alpha versions by: dfr
i386 versions by: jakeb
Approved by: SMPng
|
| 65372 |
02-Sep-2000 |
iwasaki |
Add ACPI_BUS_SPACE stuff definitions in acpi_machdep.h.
Change to include this file rather than acpica_osd.h to use
only ACPI_BUS_SPACE stuff.
|
| 65276 |
31-Aug-2000 |
iwasaki |
Modified PCI config space access code via pcib_if rather than using
pci_cfg{read|write}.
- Obtain device_t pcib instance by calling device_find_child().
- Call PCIB_{READ|WRITE}_CONFIG() to access to pcib interfaces.
Reviewed by: dfr, takawata
|
| 65216 |
29-Aug-2000 |
iwasaki |
A lot of changes on acpi driver code.
- The "Osd*" stuff went away from acpi driver code, use the bus_space
functions directly instead.
- Fix minor english bugs.
acpi_registers_input -> acpi_register_input
acpi_registers_output -> acpi_register_output
- Remove all magic numbers for the sleeping states. We now have
#defines for these.
- NULL is treated the same as the return from aml_get_rootname in
aml_find_from_namespace().
Suggested by: msmith
Thanks mike!
|
| 65065 |
25-Aug-2000 |
takawata |
Another file needed for ACPI,I forgot to commit.
Noticed by:iwasaki
|
| 64834 |
18-Aug-2000 |
msmith |
Increase the default NAPIC from 1 to 2 as a bandaid until we allocate
these dynamically (ie. typically you shouldn't have to set NAPIC at all)
|
| 64728 |
16-Aug-2000 |
tegge |
Prepare for a cleanup of pmap module API pollution introduced by the
suggested fix in PR 12378.
Keep track of all existing pmaps independent of existing processes.
This allows for a process to temporarily connect to a different address
space without the risk of missing an update of the original address space if
the kernel grows.
pmap_pinit2() is no longer needed on the i386 platform but is left as a
stub until the alpha pmap code is updated.
PR: 12378
|
| 64615 |
13-Aug-2000 |
ume |
Add output of per battery information to apm(1).
New ioctl APMIO_GETPWSTATUS is introduced.
Reviewed by: -mobile and -current folks (no objection)
|
| 64529 |
11-Aug-2000 |
peter |
Clean up some low level bootstrap code:
- stop using the evil 'struct trapframe' argument for mi_startup()
(formerly main()). There are much better ways of doing it.
- do not use prepare_usermode() - setregs() in execve() will do it
all for us as long as the p_md.md_regs pointer is set. (which is
now done in machdep.c rather than init_main.c. The Alpha port did it
this way all along and is much cleaner).
- collect all the magic %cr0 etc register settings into one place and
have the AP's call that instead of using magic numbers (!!) that keep
changing over and over again.
- Make it safe to call kthread_create() earlier, including during the
device probe sequence. It doesn't need the callback mechanism that
NetBSD's version uses.
- kthreads created this way are root-less as they exist before the root
filesystem is mounted. init(1) is set up so that it aquires the root
pointers prior to running. If other kthreads want filesystem acccess
we can make this code more generic.
- set all threads start times once we have decided what time it is.
- init uses a trampoline rather than the evil prepare_usermode() hack.
- kern_descrip.c has a couple of tweaks to deal with forking when there
is no rootdir or cwd etc.
- adjust the early SYSINIT() sequence so that a few prereqisites are in
place. eg: make sure the run queue is initialized before doing forks.
With this, the USB code can easily create a kthread to do the device
tree discovery. (I have tested it, it works nicely).
There are still some open issues before this is truely useful.
- tsleep() does not like working before the clock is running. It
sort-of tries to spin wait, but it can do more useful things now.
- stopping a kthread in kld code at unload time is "interesting" but
we have a solution for that.
The Alpha code needs no changes for this. It already uses pretty much the
same strategies, but a little cleaner.
|
| 64494 |
10-Aug-2000 |
tegge |
Don't skip IOAPIC id conflict detection when only one pci bus is present.
PR: 20312
Reviewed by: Steve Roome <steve@sse0691.bri.hp.com>
|
| 64290 |
06-Aug-2000 |
tegge |
Be more verbose when changing APIC ID on an IO APIC.
Don't allow cpu entries in the MP table to contain APIC IDs out of range.
Don't write outside array boundaries if an IO APIC entry in the MP table
contains an APIC ID out of range.
Assign APIC IDs for all IO APICs according to section 3.6.6 in the
Intel MP spec:
- If the current APIC ID on an IO APIC doesn't conflict with other
IO APICs or CPUs, that APIC ID should be used. The copy of the MP
table must be updated if the corresponding APIC ID in the MP table
is different.
- If the current APIC ID was in conflict with other units, the
corresponding APIC ID specified in the MP table is checked for conflict.
- If a conflict is still found then fall back to using a new unique ID.
The copy of the MP table must be updated.
- IDs out of range is considered to be in conflict.
During these operations, the IO_TO_ID array cannot be used, since any
conflict would have caused information loss. The array is then corrected,
since all APIC ID conflicts should have been resolved.
PR: 20312, 18919
|
| 64251 |
04-Aug-2000 |
iwasaki |
Cleanup debug messages and Add some enhancements from linux on
display control by apm -d.
- Remove APM_DEBUG to avoid re-build kernel with such a unspported optioin.
- Introduce new denug flag `debug.apm_debug' which can be controlled by
sysctl interface and loader by setting like "debug.apm_debug=1", you
will get debug messages from APM driver.
- Add some enhancements from linux on display control by apm -d. I'm
expecting that we can see some improvements on some laptops where
apm -d doesn't work correctly so far.
Reviewed by: -mobile and -current folks (no objection)
Suggested by: Susumu WAKABAYASHI <susumu@wakabaya.net>
|
| 61692 |
14-Jun-2000 |
bde |
Fixed syntax errors and style bugs in previous commit. The syntax
errors were normally harmless because they were in unreachable code
and gcc apparently doesn't check the syntax inside asm statements
that it optimizes away.
|
| 61136 |
31-May-2000 |
msmith |
Further fixes for multiple-IO-APIC systems from Tor Egge:
Further experimentation showed that some Dell 2450 machines with the
prevention kludge installed still got T_RESERVED traps. CPU interrupt
vector 0x7A was observed to be triggered. This might have been the
bitwise OR of two different vectors sent from each of the IOAPICs at
the same time.
IOAPIC #0: 0x68 --> irq 8: RTC timer interrupt
IOAPIC #1: 0x32 --> irq 18: scsi host adapter or network interface
----
0x7a --> T_RESERVED
Both IOAPICs had ID 0.
Appendix B.3 in the MP spec indicates that the operating system is
responsible for assigning unique IDs to the IOAPICs.
The enclosed patch programs the IOAPIC IDs according to the IOAPIC
entries in the MP table.
Submitted by: tegge
|
| 61131 |
31-May-2000 |
msmith |
Bump the default NBUS value to 8, in lieu of actually sizing it
dynamically. Too many systems have more than 4 busses now.
|
| 61130 |
31-May-2000 |
bde |
Pack the SWI bits to save some time and space.
|
| 61126 |
31-May-2000 |
bde |
Add SWI_TQ_MASK to all interrupt masks except SWI_CLOCK_MASK. Use a
new macro SWI_LOW_MASK to give the mask for low priority SWIs instead
of hard-coding this mask as SWI_CLOCK_MASK.
Reviewed by: dfr
|
| 61112 |
31-May-2000 |
nyan |
Sync with sys/i386/include/bus_at386.h revision 1.9.
|
| 61033 |
28-May-2000 |
dfr |
Add taskqueue system for easy-to-use SWIs among other things.
Reviewed by: arch
|
| 60938 |
26-May-2000 |
jake |
Back out the previous change to the queue(3) interface.
It was not discussed and should probably not happen.
Requested by: msmith and others
|
| 60833 |
23-May-2000 |
jake |
Change the way that the queue(3) structures are declared; don't assume that
the type argument to *_HEAD and *_ENTRY is a struct.
Suggested by: phk
Reviewed by: phk
Approved by: mdodd
|
| 60755 |
21-May-2000 |
peter |
Implement an optimization of the VM<->pmap API. Pass vm_page_t's directly
to various pmap_*() functions instead of looking up the physical address
and passing that. In many cases, the first thing the pmap code was doing
was going to a lot of trouble to get back the original vm_page_t, or
it's shadow pv_table entry.
Inspired by: John Dyson's 1998 patches.
Also:
Eliminate pv_table as a seperate thing and build it into a machine
dependent part of vm_page_t. This eliminates having a seperate set of
structions that shadow each other in a 1:1 fashion that we often went to
a lot of trouble to translate from one to the other. (see above)
This happens to save 4 bytes of physical memory for each page in the
system. (8 bytes on the Alpha).
Eliminate the use of the phys_avail[] array to determine if a page is
managed (ie: it has pv_entries etc). Store this information in a flag.
Things like device_pager set it because they create vm_page_t's on the
fly that do not have pv_entries. This makes it easier to "unmanage" a
page of physical memory (this will be taken advantage of in subsequent
commits).
Add a function to add a new page to the freelist. This could be used
for reclaiming the previously wasted pages left over from preloaded
loader(8) files.
Reviewed by: dillon
|
| 60721 |
19-May-2000 |
obrien |
We use a MI version of this now, which is mostly this file repo copied to
dev/ppbus/lptio.h.
|
| 60672 |
18-May-2000 |
msmith |
Implement real read/write barriers for the i386. Despite the comment in
previous versions of this file, some barrier functionality is required.
|
| 60300 |
10-May-2000 |
obrien |
When using _asm{} in GCC, one must specify the operand's size if one
specifies the instruction's operation size. GCC will default to 32-bit
operands reguardless of the prototype (ie, formal parameters' type)
of an inline function.
|
| 60145 |
07-May-2000 |
nyan |
Fixed bus_space_{read,write}_region_* functions.
Pointed out: Motomichi Matsuzaki <mzaki@e-mail.ne.jp>
|
| 60104 |
06-May-2000 |
jlemon |
Make in_cksum() a macro call to in_cksum_skip(), since it provides the
same functionality. Sharing code should help cache issues.
Remove in_cksum_partial, since its not being used, and we now have
a way to compute partial checksums on mbuf chains.
|
| 59874 |
01-May-2000 |
peter |
Add $FreeBSD$
|
| 59604 |
24-Apr-2000 |
obrien |
* Use sys/sys/random.h rather than a i386 specific one.
* There was nothing that should be machine dependant about
i386/isa/random_machdep.c, so it is now sys/kern/kern_random.c.
|
| 59294 |
16-Apr-2000 |
msmith |
Some more i386-only BIOS-friendliness:
- Add support for using the PCI BIOS functions for configuration space
accesses, and make this the default.
- Make PNPBIOS the default (obsoletes the PNPBIOS config option).
- Add two new boot-time tunables to disable each of the above.
|
| 59013 |
04-Apr-2000 |
roger |
Add multiple #include protection
Submitted by: Thomas Klausner <wiz@danbala.ifoer.tuwien.ac.at>
|
| 58853 |
31-Mar-2000 |
hm |
Add support for "green" saver mode.
|
| 58820 |
30-Mar-2000 |
peter |
Make sysv-style shared memory tuneable params fully runtime adjustable
via sysctl. It's done pretty simply but it should be quite adequate.
Also move SHMMAXPGS from $machine/include/vmparam.h as the comments that
went with it were wrong... we don't allocate KVM space for the pages so
that comment is bogus.. The only practical limit is how much physical
ram you want to lock up as this stuff isn't paged out or swap backed.
|
| 58763 |
29-Mar-2000 |
jlemon |
Change the mbuf size from 128 -> 256. Increasing the mbuf header size
caused some headers not to fit in MHLEN any more. This matches the
current size on the alpha, so it shouldn't cause problems.
Problem observed by: Geoff Rehmet <geoff@is.co.za>
Originally suggested by: shin
|
| 58762 |
29-Mar-2000 |
kato |
Added indirect pio into the bus space stuff for the NEC PC-98. bus.h
includes one of bus_at386.h and bus_pc98.h. Becuase only bus_pc98.h
supports indirect pio and bus_at386.h is identical to old bus.h, there
is no functional change in PC-AT's kernels. That is, it cannot cause
performance loss.
Submitted by: nyan
Reviewed by: imp
bde and luoqi provided useful comments for earlier version.
|
| 58755 |
28-Mar-2000 |
dillon |
The SMP cleanup commit broke UP compiles. Make UP compiles work again.
|
| 58730 |
28-Mar-2000 |
hm |
pcvt cleanup.
remove obsolete stuff resulting from the pcvt kernel part cleanup.
|
| 58717 |
28-Mar-2000 |
dillon |
Commit major SMP cleanups and move the BGL (big giant lock) in the
syscall path inward. A system call may select whether it needs the MP
lock or not (the default being that it does need it).
A great deal of conditional SMP code for various deadended experiments
has been removed. 'cil' and 'cml' have been removed entirely, and the
locking around the cpl has been removed. The conditional
separately-locked fast-interrupt code has been removed, meaning that
interrupts must hold the CPL now (but they pretty much had to anyway).
Another reason for doing this is that the original separate-lock for
interrupts just doesn't apply to the interrupt thread mechanism being
contemplated.
Modifications to the cpl may now ONLY occur while holding the MP
lock. For example, if an otherwise MP safe syscall needs to mess with
the cpl, it must hold the MP lock for the duration and must (as usual)
save/restore the cpl in a nested fashion.
This is precursor work for the real meat coming later: avoiding having
to hold the MP lock for common syscalls and I/O's and interrupt threads.
It is expected that the spl mechanisms and new interrupt threading
mechanisms will be able to run in tandem, allowing a slow piecemeal
transition to occur.
This patch should result in a moderate performance improvement due to
the considerable amount of code that has been removed from the critical
path, especially the simplification of the spl*() calls. The real
performance gains will come later.
Approved by: jkh
Reviewed by: current, bde (exception.s)
Some work taken from: luoqi's patch
|
| 58698 |
27-Mar-2000 |
jlemon |
Add support for offloading IP/TCP/UDP checksums to NIC hardware which
supports them.
|
| 58538 |
24-Mar-2000 |
jhb |
Update sysinstall to use struct uc_device instead of struct isa_device
for generating /boot/kernel.conf. Since this structure is shared, move
its definition out to a header file, just as struct isa_device was defined
in a header file. This fixes the sysinstall breakage in -current.
|
| 58342 |
20-Mar-2000 |
cracauer |
Exchange numerical values for FPE_INTDIV and FPE_INTOVF, so that they
are compatible with the older ones implemented in FreeBSD 3.x.
PR: 15488
|
| 58230 |
18-Mar-2000 |
yokota |
- Add Support for the following PS/2 mice:
- Microsoft IntelliMouse Explorer: 2 buttons on top, 2 side buttons
and a wheel which also acts as the middle button. The mouse is
recognized as "IntelliMouse Explorer".
- Genius NetScroll Optical: 2 buttons on top, 2 side buttons and a
wheel which also acts as the middle button. The mouse is recognized
as "NetMouse/NetScroll Optical".
- MouseSystems SmartScroll Mouse (OEM from Genius?): 3 buttons on top,
1 side button and a wheel. The mouse is recognized as Genius
"NetScroll".
- IBM ScrollPoint: 2 buttons on top and a stick between the buttons.
The stick can perform "horizontal scroll" in W*ndows environment.
The horizontal movement of the stick is detected. It is currently
mapped to the Z axis movement in the same way as the first wheel.
The mouse is recognized as "MouseMan+", as it is considered to be
a variation of MouseMan.
- A4 Tech 4D and 4D+ mice. These mice have two wheels! The movement
of the second wheel is reported as the Z axis movement in the
same way as the first wheel. These mice are recognized as "4D
Mouse" and "4D+ Mouse".
- Tweak IntelliMouse support code a bit so that less-than-compatible
wheel mice can work properly with the psm driver.
- Add driver configuration flags which correspond to the kernel
options PSM_HOOKRESUME and PSM_RESETAFTERSUSPEND, so that we don't
need to recompile the kernel when we need these functions.
- Properly keep track of the irq resource.
- Add a watchdog timer in case interrupts are lost (experimental).
- Add `detach' function (experimental).
|
| 57890 |
10-Mar-2000 |
cracauer |
Change the default FPU control word so that exceptions for new
processes are now masked until set by fpsetmask(3).
Submitted by: bde
Approved by: jkh, bde
|
| 57701 |
02-Mar-2000 |
dufault |
Patches that eliminate extra context switches in FIFO case.
Fixes p1003_1b regression test in the simple case of no RR and
FIFO processes competing.
Reviewed by: jkh, bde
|
| 57376 |
21-Feb-2000 |
bsd |
Fix an __asm operand constraint which broke the -O3 and -O0 builds.
Submitted by: Seigo Tanimura <tanimura@freebsd.org>
Approved by: jkh
|
| 57362 |
20-Feb-2000 |
bsd |
Don't forget to reset the hardware debug registers when a process that
was using them exits.
Don't allow a user process to cause the kernel to take a TRCTRAP on a
user space address.
Reviewed by: jlemon, sef
Approved by: jkh
|
| 57168 |
12-Feb-2000 |
obrien |
Document the support in the kernel for hardware debug registers on the
ix86 platform which allows for hardware watchpoints, etc...
Submitted by: Brian Dean <brdean@unx.sas.com>
|
| 56965 |
02-Feb-2000 |
wpaul |
Add support for WEP (encryption) for silver and gold WaveLAN/IEEE turbo cards.
Also update wicontrol to enable/disable encryption, set WEP keys and set the
TX key index. Silver cards only have 40-bit keys. This is something of a quick
hack, but it works well enough for me to commit this from the LinuxWorld
exhibit floor.
The WEP support only shows up if you have a card that supports it.
Would have been approved by: jkh, if he hadn't wandered off somewhere
Approved in his place by: msmith, who's standing right here
|
| 56581 |
25-Jan-2000 |
bde |
Fixed the profiling version ALTENTRY(). Again. The previous version
didn't set up the frame pointer before calling mcount, and then jumped
to the wrong place in ENTRY() to defeat the point of the jump.
|
| 56532 |
24-Jan-2000 |
roger |
Update to driver 2.07
Add new Channel Set for France. Submitted by Daniel Dagneaux <dagneaux@lure.u-psud.fr>
|
| 56511 |
24-Jan-2000 |
peter |
Remove old specialix pre-newbus specialix driver. It lives on in
sys/dev/si now, including with a theoretically working eisa attachment.
|
| 56309 |
20-Jan-2000 |
jasone |
Move ENTRY and ALTENTRY definitions to asm.h where they belong.
Unbreak profiling. Again.
Submitted by: bde
|
| 55962 |
14-Jan-2000 |
sheldonh |
Protect the i386 machine-dependant type definitions of __int64_t
and __uint64_t from lint(1) with /* LONGLONG */ comments.
|
| 55891 |
13-Jan-2000 |
mdodd |
Allow SMP systems with an MCA bus to work properly.
Reviewed by: peter
|
| 55672 |
09-Jan-2000 |
bde |
Fixed style bugs related to the access functions for the bsfl and bsrl
i386 instructions.
|
| 55540 |
07-Jan-2000 |
luoqi |
Allow SMP && NCPU == 1 to work. From now on, there's no restriction on the
value of NCPU relative to the number of cpus physically present, the actual
number of cpus utilized will be the smaller of the two.
|
| 55420 |
04-Jan-2000 |
tegge |
ISA device drivers use the ISA source interrupt number in locations where
the low level interrupt handler number should be used. Change
setup_apic_irq_mapping() to allocate low level interrupt handler X (Xintr${X})
for any ISA interrupt X mentioned in the MP table.
Remove an assumption in the driver for the system clock (clock.c) that
interrupts mentioned in the MP table as delivered to IOAPIC #0 intpin Y
is handled by low level interrupt handler Y (Xintr${Y}) but don't assume
that low level interrupt handler 0 (Xintr0) is used.
Don't allocate two low level interrupt handlers for the system clock.
Reviewed by: NOKUBI Hirotaka <hnokubi@yyy.or.jp>
|
| 55205 |
29-Dec-1999 |
peter |
Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot). This is consistant with the other
BSD's who made this change quite some time ago. More commits to come.
|
| 54610 |
14-Dec-1999 |
hm |
update to isdn4bsd beta release 0.90
|
| 54425 |
11-Dec-1999 |
peter |
Reclaim UPAGES_HOLE (8k) that was chopped out of process address space.
The UPAGES have not been there since Jan '96, but the hole was preserved
for BSD/OS binary compatability. This has been fixed other ways (%ebx
now has a pointer to PS_STRINGS), and the stack is nowhere near where
it used to be so this hack isn't required anymore.
|
| 54188 |
06-Dec-1999 |
luoqi |
User ldt sharing.
|
| 54160 |
05-Dec-1999 |
peter |
Switch over to using the generic joy driver
|
| 54121 |
04-Dec-1999 |
marcel |
oszsigcode -> szosigcode
Pointed out by: bde
|
| 54120 |
04-Dec-1999 |
marcel |
Fix type of sf_addr.
Pointed out by: bde
|
| 53745 |
27-Nov-1999 |
bde |
Moved scheduling-related code to kern_synch.c so that it is easier to fix
and extend. The new function containing the code is named schedclock()
as in NetBSD, but it has slightly different semantics (it already handles
incrementation of p->p_cpticks, and it should handle any calling frequency).
Agreed with in principle by: dufault
|
| 53702 |
25-Nov-1999 |
wpaul |
Update the WaveLAN/IEEE driver:
- Convert to new bus attachment scheme. Thanks to Blaz Zupan for doing
the initial work here. One thing I changed was to have the attach
and detach routines work like the PCI drivers, which means that in
theory you should be able to load and unload the driver like the PCI
NIC drivers, however the pccard support for this hasn't settled down
yet so it doesn't quite work. Once the pccard work is done, I'll have
to revisit this.
- Add device wi0 to PCCARD. If we're lucky, people should be able to
install via their WaveLAN cards now.
- Add support for signal strength caching. The wicontrol utility has
also been updated to allow zeroing and displaying the signal strength
cache.
- Add a /sys/modules/wi directory and fix a Makefile to builf if_wi.ko.
Currently this module is only built for the i386 platform, though once
the pccard stuff is done it should be able to work on the alpha too.
(Theoretically you should be able to plug one of the WaveLAN/IEEE ISA
cards into an alpha with an ISA slot, but we'll see how that turns out.
- Update LINT to use only device wi0. There is no true ISA version of
the WaveLAN/IEEE so we'll never use an ISA attachment.
- Update files.i386 so that if_wi is dependent on card.
|
| 53435 |
19-Nov-1999 |
dillon |
Optimize two cases in the MP locking code. First, it is not necessary
to use a locked cmpexg when unlocking a lock that we already hold, since
nobody else can touch the lock while we hold it. Second, it is not
necessary to use a locked cmpexg when locking a lock that we already
hold, for the same reason. These changes will allow MP locks to be used
recursively without impacting performance.
Modify two procedures that are called only by assembly and are already
NOPROF entries to pass a critical argument in %edx instead of on the
stack, removing a significant amount of code from the critical path
as a consequence.
Reviewed by: Alfred Perlstein <bright@wintelcom.net>, Peter Wemm <peter@netplex.com.au>
|
| 53425 |
19-Nov-1999 |
dillon |
Optimize two cases in the MP locking code. First, it is not necessary
to use a locked cmpexg when unlocking a lock that we already hold, since
nobody else can touch the lock while we hold it. Second, it is not
necessary to use a locked cmpexg when locking a lock that we already
hold, for the same reason. These changes will allow MP locks to be used
recursively without impacting performance.
Modify two procedures that are called only by assembly and are already
NOPROF entries to pass a critical argument in %edx instead of on the
stack, removing a significant amount of code from the critical path
as a consequence.
Reviewed by: Alfred Perlstein <bright@wintelcom.net>, Peter Wemm <peter@netplex.com.au>
|
| 53189 |
15-Nov-1999 |
luoqi |
Segment registers can be read(write) to(from) memory locations as well as
general registers.
|
| 53139 |
14-Nov-1999 |
obrien |
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
|
| 53108 |
12-Nov-1999 |
marcel |
Reserve space for FPU state in struct sigcontext. Fix some style bugs
and comments while there.
Submitted by: bde
|
| 53106 |
12-Nov-1999 |
marcel |
Change the type of sf_addr in struct {o}sigframe from char* to
register_t.
Fix some style bugs and bitrotted comments.
Submitted by: bde
|
| 52669 |
30-Oct-1999 |
iwasaki |
i8254_restore is called from apm_default_resume() to reload
the countdown register.
this should not be necessary but there are broken laptops that
do not restore the countdown register on resume.
when it happnes, it messes up the hardclock interval and system clock,
which leads to the infamous "calcru: negative time" problem.
Submitted by: kjc, iwasaki
Reviewed by: Steve O'Hara-Smith <steveo@eircom.net> and committers.
Obtained from: PAO3
|
| 52271 |
15-Oct-1999 |
tegge |
Eliminate remaining part of incorrect PCI bus numbering sanity check on systems with more than one PCI bus.
|
| 52243 |
14-Oct-1999 |
dfr |
* Implement bus_set/get/delete_resource for pci.
* Change the hack used on the alpha for mapping devices into DENSE or
BWX memory spaces to a simpler one. Its still a hack and should be
a seperate api to explicitly map the resource.
* Add $FreeBSD$ as necessary.
|
| 52140 |
11-Oct-1999 |
luoqi |
Add a per-signal flag to mark handlers registered with osigaction, so we
can provide the correct context to each signal handler.
Fix broken sigsuspend(): don't use p_oldsigmask as a flag, use SAS_OLDMASK
as we did before the linuxthreads support merge (submitted by bde).
Move ps_sigstk from to p_sigacts to the main proc structure since signal
stack should not be shared among threads.
Move SAS_OLDMASK and SAS_ALTSTACK flags from sigacts::ps_flags to proc::p_flag.
Move PS_NOCLDSTOP and PS_NOCLDWAIT flags from proc::p_flag to procsig::ps_flag.
Reviewed by: marcel, jdp, bde
|
| 52121 |
11-Oct-1999 |
peter |
Zap unneeded #includes
Submitted by: phk
|
| 51984 |
07-Oct-1999 |
marcel |
Simplification of the signal trampoline and other cleanups.
o Remove unused defines from genassym.c that were needed
by the trampoline.
o Add load_gs_param function to support.s that catches
a fault when %gs is loaded with an invalid descriptor.
The function returns EFAULT in that case.
o Remove struct trapframe from mcontext_t and replace it
with the list of registers.
o Modify sendsig and sigreturn accordingly.
This commit contains a patch by bde.
Reviewed by: luoqi, jdp
|
| 51942 |
04-Oct-1999 |
marcel |
Re-introduction of sigcontext.
struct sigcontext and ucontext_t/mcontext_t are defined in such
a way that both (ie struct sigcontext and ucontext_t) can be
passed on to sigreturn. The signal handler is still given a
ucontext_t for maximum flexibility.
For backward compatibility sigreturn restores the state for the
alternate signal stack from sigcontext.sc_onstack and not from
ucontext_t.uc_stack. A good way to determine which value the
application has set and thus which value to use, is still open
for discussion.
NOTE: This change should only affect those binaries that use
sigcontext and/or ucontext_t. In the source tree itself
this is only doscmd. Recompilation is required for those
applications.
This commit also fixes a lot of style bugs without hopefully
adding new ones.
NOTE: struct sigaltstack.ss_size now has type size_t again. For
some reason I changed that into unsigned int.
Parts submitted by: bde
sigaltstack bug found by: bde
|
| 51938 |
04-Oct-1999 |
peter |
Use the rev 1.1.2.1 code from RELENG_3 for atomic operations rather
than the non-atomic C macros.
|
| 51937 |
04-Oct-1999 |
peter |
Typo: s/__GNUC_MINOR_/__GNUC_MINOR__/
(__GNUC_MINOR__ on egcs in -current is "91" and is going to be "95" soon)
|
| 51931 |
04-Oct-1999 |
marcel |
Fix style bug: order includes
Submitted by: bde
|
| 51917 |
03-Oct-1999 |
eivind |
Allow compilation with older versions of GCC, in order to make it possible
to bootstrap and work with -current from older versions of FreeBSD.
|
| 51907 |
03-Oct-1999 |
marcel |
Fix style bugs caused by using the wrong file to copy from. That one
gets fixed later on.
Reinstate the mysterious 4th argument to signal handlers and add some
comments on that.
|
| 51792 |
29-Sep-1999 |
marcel |
sigset_t change (part 3 of 5)
-----------------------------
By introducing a new sigframe so that the signal handler operates
on the new siginfo_t and on ucontext_t instead of sigcontext, we
now need two version of sendsig and sigreturn.
A flag in struct proc determines whether the process expects an
old sigframe or a new sigframe. The signal trampoline handles
which sigreturn to call. It does this by testing for a magic
cookie in the frame.
The alpha uses osigreturn to implement longjmp. This means that
osigreturn is not only used for compatibility with existing
binaries. To handle the new sigset_t, setjmp saves it in
sc_reserved (see NOTE).
the struct sigframe has been moved from frame.h to sigframe.h
to handle the complex header dependencies that was caused by
the new sigframe.
NOTE: For the i386, the size of jmp_buf has been increased to hold
the new sigset_t. On the alpha this has been prevented by
using sc_reserved in sigcontext.
|
| 51661 |
25-Sep-1999 |
mjacob |
Fix from Tor so that if we enter the debugger in the tristate going to
SMP (other CPUs stopped but SMP mode not really started).
Obtained from:Tor.Egge@fast.no
|
| 51532 |
22-Sep-1999 |
dillon |
Back out a portion of the last commit. DFLTPHYS and MAXPHYS cannot
be set by a kernel conf option due to the struct buf structural
dependancy (sizing of b_pages[]) creating a conflict with modules
(which are not compiled with kernel config options overrides).
We'll be able to sysctl these two later on when the buffer subsystem
is revamped.
|
| 51528 |
22-Sep-1999 |
dillon |
Change default block size for user VBLK device access from 2K to PAGE_SIZE
(4K on an i386, 8K on an alpha).
Make BLKDEV_IOSIZE, DFLTPHYS, and MAXPHYS kernel-configurable.
|
| 51183 |
11-Sep-1999 |
peter |
Make pmap_mapdev() deal with non-page-aligned requests.
Add a corresponding pmap_unmapdev() to release the KVM back to kernel_map.
|
| 51127 |
10-Sep-1999 |
peter |
Add the CR4 values for P3 SIMD enabling support. FXSR tells the cpu that
the OS does FXSAVE/FXRESTOR instructions (fast FPU save/restore) during
context switching and also enables SIMD since this enables saving the
extra CPU context that isn't saved with normal FPU regs. The other
enables the SIMD instructions to use exception 16 (FPU) error reporting.
Note, this doesn't turn on SIMD, just defines the bits.
|
| 51114 |
10-Sep-1999 |
msmith |
Invoke smp_rendezvous_action() using the a.out compatible asnames.h
technique (bleagh).
|
| 50972 |
05-Sep-1999 |
peter |
Set up FPU state on the AP.
Tested by: phk
|
| 50915 |
04-Sep-1999 |
peter |
Don't install stubs, make a compat symlink at buildworld time.
All internal references to <machine/soundcard.h> are (hopefully :-) gone.
|
| 50907 |
04-Sep-1999 |
dfr |
Make <machine/soundcard.h> a stub which includes <sys/soundcard.h>
|
| 50816 |
02-Sep-1999 |
luoqi |
Some reorganization of sysarch() interface:
1. Move definitions of struct i386_*_args to the header file sysarch.h,
since they are part of the sysarch API. struct i386_get_ldt_args and
i386_set_ldt_args were identical, therefore make them into one
struct i386_ldt_args. Libc should use these definitions as well.
2. Return a more sensible EOPNOTSUPP for unknown operations.
Reviewed by: marcel
|
| 50477 |
28-Aug-1999 |
peter |
$Id$ -> $FreeBSD$
|
| 50463 |
27-Aug-1999 |
jlemon |
Reference the correct gdt[] entry on SMP. Remove the `generation' flag,
and always reload the selectors for every bios call.
|
| 50315 |
24-Aug-1999 |
phk |
Remove unneeded prototypes.
|
| 50251 |
23-Aug-1999 |
alc |
Modify the macros IMASK_UNLOCK, CPL_UNLOCK, and REL_FAST_INTR_LOCK
to perform the s_unlock inline.
|
| 50147 |
22-Aug-1999 |
alc |
Make "s_unlock" an inline function. (Inlining this function takes
less space than calling it. A callable version still exists for
use by some assembly code.)
|
| 50054 |
19-Aug-1999 |
peter |
Undo my previous commit and do it differently. Break the ffs() etc macros
into two parts - one to do the bsfl and the other to convert the result
(base 0) to ffs()-like (base 1) in inline C. This enables the optimizer
to be a lot smarter in certain cases, like where it knows that the argument
is non-zero and we want ffs(known non zero arg) - 1. This appears to
produce identical code to the old inline when the argument is unknown.
|
| 50038 |
19-Aug-1999 |
peter |
Try using the builtin ffs() for egcs, it (by random inspection)
generates slightly better code and avoids the incl then subl when
using ffs(foo) - 1.
|
| 50037 |
19-Aug-1999 |
peter |
Update for MI switch code, and trim a heap of unused (I believe) entries.
|
| 49999 |
18-Aug-1999 |
alc |
Create callable (non-inline) versions of the atomic_OP_TYPE functions
that are linked into the kernel. The KLD compilation options are
changed to call these functions, rather than in-lining the
atomic operations.
This approach makes atomic operations from KLDs significantly
faster on UP systems (though somewhat slower on SMP systems).
PR: i386/13111
Submitted by: peter.jeremy@alcatel.com.au
|
| 49996 |
18-Aug-1999 |
msmith |
Remove the SMBIOS detection and definitions; this should be handled in a
loadable module (under development).
|
| 49964 |
17-Aug-1999 |
yokota |
Add definitions for Interlink VersaPad.
|
| 49953 |
17-Aug-1999 |
msmith |
Search for and interrogate the PnP BIOS if found. This code just prints
the PnP device IDs in verbose mode; it does not (yet) save any resource
data or contribute to the PnP process nor resource management.
|
| 49952 |
17-Aug-1999 |
msmith |
Mindbogglingly, many BIOS vendors expect to be able to load %ds with
0x40 and then access data stored in real-mode segment 0x40, even when
called in protected mode. Microsoft unfortunately coddle these individuals,
and so must we if we want to run their code.
This change works around GPFs in some APM and PnP BIOS implementations.
Obtained from: Linux
|
| 49558 |
09-Aug-1999 |
phk |
Merge the cons.c and cons.h to the best of my ability. alpha may or
may not compile, I can't test it.
|
| 49460 |
06-Aug-1999 |
hm |
updating isdn4bsd to beta version 0.83
|
| 49292 |
30-Jul-1999 |
msmith |
Reenable the APMIO_BIOS ioctl and translate arguments into the new format
(which is more like the old than I thought).
Requested-by: imp
|
| 49248 |
30-Jul-1999 |
msmith |
Remove all vestiges of APMIO_BIOS
Submitted by: N. Dudorov <nnd@mail.nsk.ru>
|
| 49197 |
29-Jul-1999 |
msmith |
Major update to the kernel's BIOS-calling ability.
- Add support for calling 32-bit code in other segments
- Add support for calling 16-bit protected mode code
Update APM to use this facility.
Submitted by: jlemon
|
| 49157 |
28-Jul-1999 |
dfr |
Add support for SYS_RES_DENSE and SYS_RES_BWX resource types. These are
equivalent to SYS_RES_MEMORY for x86 but for alpha, the rman_get_virtual()
address of the resource is initialised to point into either dense-mapped
or bwx-mapped space respectively, allowing direct memory pointers to be
used to device memory.
Reviewed by: Andrew Gallatin <gallatin@cs.duke.edu>
|
| 49098 |
26-Jul-1999 |
cracauer |
Various formatting fixes on my FPE trapcode commit.
Submitted by: BDE
|
| 49081 |
25-Jul-1999 |
cracauer |
On FPU exceptions, pass a useful error code (one of the FPE_...
macros) to the signal handler, for old-style BSD signal handlers as
the second (int) argument, for SA_SIGINFO signal handlers as
siginfo_t->si_code. This is source-compatible with Solaris, except
that we have no <siginfo.h> (which isn't even mentioned in POSIX
1003.1b).
An rather complete example program is at
http://www3.cons.org/cracauer/freebsd-signal.c
This will be added to the regression tests in src/.
This commit also adds code to disable the (hardware) FPU from
userconfig, so that you can use a software FP emulator on a machine
that has hardware floating point. See LINT.
|
| 49068 |
24-Jul-1999 |
dg |
Increased max kmem to 200MB. This should fix some out-of-kmem panics on
large systems.
|
| 49043 |
23-Jul-1999 |
alc |
atomic.h:
Change "void *" to "volatile TYPE *", improving type safety
and eliminating some warnings (e.g., mp_machdep.c rev 1.106).
cpufunc.h:
Eliminate setbits. As defined, it's not precisely correct;
and it's redundant. (Use atomic_set_int instead.)
ipl_funcs.c:
Use atomic_set_int instead of setbits.
systm.h:
Include atomic.h.
Reviewed by: bde
|
| 48924 |
20-Jul-1999 |
msmith |
Implement an all-CPU shootdown-style rendezvous facility. This allows
the caller to specify a function to be guarded between an entry and exit
barrier, as well as pre- and post-barrier functions.
The primary use for this function is synchronised update of per-cpu private
data. The implementation is almost (but not quite) MI; with a better
mechanism for masking per-CPU interrupts it could probably be hoisted.
Reviewed by: peter (partially)
|
| 48797 |
13-Jul-1999 |
alc |
Commit the correct patch, i.e., the one that actually corresponds
to the rev 1.2 log entry.
|
| 48796 |
13-Jul-1999 |
alc |
Changed the implementation of the primitives to guarantee atomicity
with respect to interrupts on UP systems. (The upgrade from gcc 2.7.x
to egcs 1.1.2 produced at least one non-atomic code sequence in
swap_pager_getpages.)
In addition, the primitives are now SMP-safe, but only on SMPs. (For
portability between SMPs and UPs, modules are compiled with the SMP-safe
versions.)
Submitted by: dillon and myself
Reviewed by: bde
|
| 48778 |
12-Jul-1999 |
yokota |
Improve Logitech MouseMan+ protocol support.
|
| 48777 |
12-Jul-1999 |
kris |
Correct a couple of spelling errors in comments.
|
| 48735 |
10-Jul-1999 |
iwasaki |
Add apmd support code.
|
| 48729 |
10-Jul-1999 |
bde |
Go back to the old (icu.s rev.1.7 1993) way of keeping the AST-pending
bit separate from ipending, since this is simpler and/or necessary for
SMP and may even be better for UP.
Reviewed by: alc, luoqi, tegge
|
| 48691 |
09-Jul-1999 |
jlemon |
Implement support for hardware debug registers on the i386.
Submitted by: Brian Dean <brdean@unx.sas.com>
|
| 48621 |
06-Jul-1999 |
cracauer |
Implement SA_SIGINFO for i386. Thanks to Bruce Evans for much more
than a review, this was a nice puzzle.
This is supposed to be binary and source compatible with older
applications that access the old FreeBSD-style three arguments to a
signal handler.
Except those applications that access hidden signal handler arguments
bejond the documented third one. If you have applications that do,
please let me know so that we take the opportunity to provide the
functionality they need in a documented manner.
Also except application that use 'struct sigframe' directly. You need
to recompile gdb and doscmd. `make world` is recommended.
Example program that demonstrates how SA_SIGINFO and old-style FreeBSD
handlers (with their three args) may be used in the same process is at
http://www3.cons.org/tmp/fbsd-siginfo.c
Programs that use the old FreeBSD-style three arguments are easy to
change to SA_SIGINFO (although they don't need to, since the old style
will still work):
Old args to signal handler:
void handler_sn(int sig, int code, struct sigcontext *scp)
New args:
void handler_si(int sig, siginfo_t *si, void *third)
where:
old:code == new:second->si_code
old:scp == &(new:si->si_scp) /* Passed by value! */
The latter is also pointed to by new:third, but accessing via
si->si_scp is preferred because it is type-save.
FreeBSD implementation notes:
- This is just the framework to make the interface POSIX compatible.
For now, no additional functionality is provided. This is supposed
to happen now, starting with floating point values.
- We don't use 'sigcontext_t.si_value' for now (POSIX meant it for
realtime-related values).
- Documentation will be updated when new functionality is added and
the exact arguments passed are determined. The comments in
sys/signal.h are meant to be useful.
Reviewed by: BDE
|
| 48527 |
03-Jul-1999 |
imp |
Improve compatibility with other systems by changing the default
behavior slightly.
If machine/bus.h is included, but neither bus_memio.h nor bus_pio.h
are included, then behave as if both were included.
This won't change existing drivers, all of which include one or more
of bus_{p,mem}io.h, but will allow drivers from other systems to come
over with fewer changes. I freely admit that this might not be
optimal for some drivers, but those drivers can be optimized for
FreeBSD after the initial bringup happens.
Without the change, there is a bug that preclude drivers from
compiling with strange warning/errors.
I've been running this here for a while now w/o ill effects.
Reviewed by: gibbs
Not objected to by: bde, arch@ list.
|
| 48145 |
23-Jun-1999 |
msmith |
Changes in the way that the APs are started appears to have removed the
problem with having more CPUs than NCPU.
PR: kern/4255
Submitted by: peter
|
| 48144 |
23-Jun-1999 |
luoqi |
Do not setup 4M pdir until all APs are up.
|
| 48119 |
22-Jun-1999 |
msmith |
Remove an unnecessary panic when sparse PCI bus numbering is encountered.
This is found eg. on some Compaq Proliant systems.
Submitted by: peter
|
| 48104 |
22-Jun-1999 |
yokota |
The second phase of syscons reorganization.
- Split syscons source code into manageable chunks and reorganize
some of complicated functions.
- Many static variables are moved to the softc structure.
- Added a new key function, PREV. When this key is pressed, the vty
immediately before the current vty will become foreground. Analogue
to PREV, which is usually assigned to the PrntScrn key.
PR: kern/10113
Submitted by: Christian Weisgerber <naddy@mips.rhein-neckar.de>
- Modified the kernel console input function sccngetc() so that it
handles function keys properly.
- Reorganized the screen update routine.
- VT switching code is reorganized. It now should be slightly more
robust than before.
- Added the DEVICE_RESUME function so that syscons no longer hooks the
APM resume event directly.
- New kernel configuration options: SC_NO_CUTPASTE, SC_NO_FONT_LOADING,
SC_NO_HISTORY and SC_NO_SYSMOUSE.
Various parts of syscons can be omitted so that the kernel size is
reduced.
SC_PIXEL_MODE
Made the VESA 800x600 mode an option, rather than a standard part of
syscons.
SC_DISABLE_DDBKEY
Disables the `debug' key combination.
SC_ALT_MOUSE_IMAGE
Inverse the character cell at the mouse cursor position in the text
console, rather than drawing an arrow on the screen.
Submitted by: Nick Hibma (n_hibma@FreeBSD.ORG)
SC_DFLT_FONT
makeoptions "SC_DFLT_FONT=_font_name_"
Include the named font as the default font of syscons. 16-line,
14-line and 8-line font data will be compiled in. This option replaces
the existing STD8X16FONT option, which loads 16-line font data only.
- The VGA driver is split into /sys/dev/fb/vga.c and /sys/isa/vga_isa.c.
- The video driver provides a set of ioctl commands to manipulate the
frame buffer.
- New kernel configuration option: VGA_WIDTH90
Enables 90 column modes: 90x25, 90x30, 90x43, 90x50, 90x60. These
modes are mot always supported by the video card.
PR: i386/7510
Submitted by: kbyanc@freedomnet.com and alexv@sui.gda.itesm.mx.
- The header file machine/console.h is reorganized; its contents is now
split into sys/fbio.h, sys/kbio.h (a new file) and sys/consio.h
(another new file). machine/console.h is still maintained for
compatibility reasons.
- Kernel console selection/installation routines are fixed and
slightly rebumped so that it should now be possible to switch between
the interanl kernel console (sc or vt) and a remote kernel console
(sio) again, as it was in 2.x, 3.0 and 3.1.
- Screen savers and splash screen decoders
Because of the header file reorganization described above, screen
savers and splash screen decoders are slightly modified. After this
update, /sys/modules/syscons/saver.h is no longer necessary and is
removed.
|
| 48005 |
18-Jun-1999 |
bde |
Changed the global `idt' from an array to a pointer so that npx.c
automatically hacks on the active copy of the IDT if f00f_hack()
has changed it. This also allows simplifications in setidt().
This fixes breakage of FP exception handling by rev.1.55 of
sys/kernel.h. FP exceptions were sent to npx.c's probe handlers
because npx.c "restored" the old handlers to the wrong copy of the
IDT. The SYSINIT for f00f_hack() was purposely run quite late to
avoid problems like this, but it is bogusly associated with the
SYSINIT for proc0 so it was moved with the latter.
Problem reported and fix tested by: Martin Cracauer <cracauer@cons.org>
|
| 47678 |
01-Jun-1999 |
jlemon |
Unifdef VM86.
Reviewed by: silence on on -current
|
| 47592 |
29-May-1999 |
phk |
Stop the TSC from being used as timecounter on K5/step0 machines.
|
| 47389 |
22-May-1999 |
bde |
Fixed style bugs in previous commit.
|
| 47347 |
20-May-1999 |
ache |
Set CHAR_{MIN,MAX} according to -funsigned-char flag given or not
PR: 11627
Submitted by: Petr Lampa <lampa@fee.vutbr.cz>
|
| 47338 |
20-May-1999 |
hm |
upgrade isdn4bsd from version 0.71 to the just released version 0.81
|
| 47297 |
18-May-1999 |
roger |
Bt848 driver release 1.65
Updated with australian channel set
Submitted by: Ivan Brawley <brawley@internode.com.au>
|
| 47081 |
12-May-1999 |
luoqi |
Unbreak VESA on SMP.
|
| 47024 |
11-May-1999 |
luoqi |
Yet another place I missed when increasing trapframe size, which causes problem
to SIGFPE handling.
Reviewed by: Bruce Evans <bde@zeta.org.au>
|
| 46846 |
09-May-1999 |
peter |
loadandclear() uses an atomic instruction (even on SMP, where it's an
implicitly LOCK'ed instruction), so there shouldn't be any harm in making
it volatile pointer compatable for one of the users of it. It seems to
generate the same code regardless.
|
| 46823 |
09-May-1999 |
peter |
s/main/mi_startup/ for the kernel entry point so that egcs doesn't get
upset about it (and generate things like __main() calls that are reserved
for main()). Renaming was phk's suggestion, but I'd already thought about
it too. (phk liked my suggested name tada() but I decided against it :-)
Reviewed by: phk
|
| 46703 |
08-May-1999 |
peter |
Make sure the mem_range_AP_init() prototype is seen where it's needed, and
#ifdef SMP around it for fun.
|
| 46548 |
06-May-1999 |
bde |
Fixed profiling of elf kernels. Made high resolution profiling compile
for elf kernels (it is broken for all kernels due to lack of egcs support).
Renaming of many assembler labels is avoided by declaring by declaring
the labels that need to be visible to gprof as having type "function"
and depending on the elf version of gprof being zealous about discarding
the others. A few type declarations are still missing, mainly for SMP.
PR: 9413
Submitted by: Assar Westerlund <assar@sics.se> (initial parts)
|
| 46495 |
05-May-1999 |
wpaul |
Add device driver support for the Lucent WaveLAN/IEEE 802.11 PCMCIA
adapter (and some workalikes). Also add man pages and a wicontrol
utility to manipulate some of the card parameters.
This driver was written using information gleaned from the Lucent HCF Light
library, though it does not use any of the HCF Light code itself, mainly
because it's contaminated by the GPL (but also because it's pretty gross).
The HCF Light lacks certain featurs from the full (but proprietary) HCF
library, including 802.11 frame encapsulation support, however it has
just enough register information about the Hermes chip to allow someone
with enough spare time and energy to implement a proper driver. (I would
have prefered getting my hands on the Hermes manual, but that's proprietary
too. For those who are wondering, the Linux driver uses the proprietary
HCF library, but it's provided in object code form only.)
Note that I do not have access to a WavePOINT access point, so I have
only been able to test ad-hoc mode. The wicontrol utility can turn on
BSS mode, but I don't know for certain that the NIC will associate with
an access point correctly. Testers are encouraged to send their results
to me so that I can find out if I screwed up or not.
|
| 46215 |
30-Apr-1999 |
msmith |
Add a hook that can be called to initialise a slave processor's memory
range attributes after they have been extracted from the master.
Hook up the i686 MP code to do this for each AP.
Be more careful about printing the default memory type for the i686.
Suggestions from: luoqi
|
| 46129 |
28-Apr-1999 |
luoqi |
Enable vmspace sharing on SMP. Major changes are,
- %fs register is added to trapframe and saved/restored upon kernel entry/exit.
- Per-cpu pages are no longer mapped at the same virtual address.
- Each cpu now has a separate gdt selector table. A new segment selector
is added to point to per-cpu pages, per-cpu global variables are now
accessed through this new selector (%fs). The selectors in gdt table are
rearranged for cache line optimization.
- fask_vfork is now on as default for both UP and SMP.
- Some aio code cleanup.
Reviewed by: Alan Cox <alc@cs.rice.edu>
John Dyson <dyson@iquest.net>
Julian Elischer <julian@whistel.com>
Bruce Evans <bde@zeta.org.au>
David Greenman <dg@root.com>
|
| 45959 |
23-Apr-1999 |
dt |
Moved cpu_set_fork_handler's prototype from <machine/cpu.h> to <sys/proc.h>.
Suggested by: bde
|
| 45897 |
21-Apr-1999 |
peter |
Stage 1 of a cleanup of the i386 interrupt registration mechanism.
Interrupts under the new scheme are managed by the i386 nexus with the
awareness of the resource manager. There is further room for optimizing
the interfaces still. All the users of register_intr()/intr_create()
should be gone, with the exception of pcic and i386/isa/clock.c.
|
| 45720 |
16-Apr-1999 |
peter |
Bring the 'new-bus' to the i386. This extensively changes the way the
i386 platform boots, it is no longer ISA-centric, and is fully dynamic.
Most old drivers compile and run without modification via 'compatability
shims' to enable a smoother transition. eisa, isapnp and pccard* are
not yet using the new resource manager. Once fully converted, all drivers
will be loadable, including PCI and ISA.
(Some other changes appear to have snuck in, including a port of Soren's
ATA driver to the Alpha. Soren, back this out if you need to.)
This is a checkpoint of work-in-progress, but is quite functional.
The bulk of the work was done over the last few years by Doug Rabson and
Garrett Wollman.
Approved by: core
|
| 45643 |
13-Apr-1999 |
tegge |
Backout early start of APs since it caused some machines to hang.
|
| 45566 |
11-Apr-1999 |
tegge |
Add prototype for wait_ap().
|
| 45562 |
10-Apr-1999 |
tegge |
Let BSP wait until all APs are initialized.
|
| 45462 |
08-Apr-1999 |
kato |
o sys/i386/include/soundcard.h
Reduce synth_info.name lenght for binary compatibility.
o sys/i386/isa/sound/mpu401.c
Reduce mpu device number info to avoid overflow of mpu_synth_info.name.
Submitted by: Akio Morita <amorita@meadow.scphys.kyoto-u.ac.jp>
|
| 45436 |
07-Apr-1999 |
peter |
Disable the mtrr copy calls, it doesn't work with the i686_mem.c stuff.
This should make it compile/link again.
|
| 45406 |
07-Apr-1999 |
msmith |
Add defines for the P6 model-specific registers.
|
| 45270 |
03-Apr-1999 |
jdp |
Restore support for executing BSD/OS binaries on the i386 by passing
the address of the ps_strings structure to the process via %ebx.
For other kinds of binaries, %ebx is still zeroed as before.
Submitted by: Thomas Stephens <tas@stephens.org>
Reviewed by: jdp
|
| 45252 |
02-Apr-1999 |
alc |
Put in place the infrastructure for improved UP and SMP TLB management.
In particular, replace the unused field pmap::pm_flag by pmap::pm_active,
which is a bit mask representing which processors have the pmap activated.
(Thus, it is a simple Boolean on UPs.)
Also, eliminate an unnecessary memory reference from cpu_switch()
in swtch.s.
Assisted by: John S. Dyson <dyson@iquest.net>
Tested by: Luoqi Chen <luoqi@watermarkgroup.com>,
Poul-Henning Kamp <phk@critter.freebsd.dk>
|
| 45240 |
02-Apr-1999 |
kato |
o sys/i386/include/soundcard.h
Add Sound Card ID for the nss(NEC PC-9801-86 Sound System) driver.
Old name of this driver was pcm driver in FreeBSD 2.2.x.
Fix lack of the length of the name member of the synth_info structure.
(attach_mpu401 in sys/i386/isa/sound/mpu401.c requires 33 chars.)
o sys/i386/isa/sound/dev_table.h
Add the DMAbuf flags definition DMA_DISABLE.
Add the nss driver entry.
o sys/i386/isa/sound/dmabuf.c
Add the DMA_DISABLE flag check in DMAbuf_outputintr and DMAbuf_inputintr
to disable DMA control in FIFO only use (nss driver required).
o sys/i386/isa/sound/local.h
Add the nss driver entry.
o sys/i386/isa/sound/mpu401.c
Replace inb function in probe_mpu401 to mpu401_status macro.
Wrap macro argument for above replace.
Add I/O port maping macro for NEC PC-98x1 arch.
Add delay in NEC PC-98x1 arch.
o sys/i386/isa/sound/pcm86.c
Change driver name to avoid name space conflict to new pcm driver.
Fix NEC PC-9801-86 driver to work on RELENG_3 branch or latter.
o sys/i386/isa/sound/sound_calls.h
Fix the mpuintr definition.
Add the nss driver entry.
attach_nss, probe_nss, nssintr
o sys/i386/isa/sound/soundcard.c
Fix lack of the mpuintr registration.
Add the nss driver entry.
o sys/pc98/conf/files.pc98
Add the nss driver entry.
Reviewed by: kato
Submitted by: Akio Morita <amorita@meadow.scphys.kyoto-u.ac.jp>
|
| 44845 |
18-Mar-1999 |
jlemon |
Change the vm86_datacall interface so that callers are now responsible
for passing in their own data space and associated page table information.
Update the support files so that any pages in the vm86 page table are
mapped, rather than just one page.
Restore the E820 memory probe, and have it use the new interface.
|
| 44670 |
11-Mar-1999 |
dg |
Increased kernel virtual address space to 1GB. NOTE: You MUST have fixed
bootblocks in order to boot the kernel after this! Also note that this
change breaks BSDI BSD/OS compatibility.
Also increased default NKPT to 17 so that FreeBSD can boot on machines
with >=2GB of RAM. Booting on machines with exactly 4GB requires other
patches, not included.
|
| 44628 |
10-Mar-1999 |
yokota |
Keyboard driver update in preparation for the USB keyboard driver.
- Refined internal interface in keyboard drivers so that:
1. the side effect of device probe is kept minimal,
2. polling mode function is added,
3. and new ioctl and configuration options are added (see below).
- Added new ioctl: KDSETREPEAT
Set keyboard typematic rate. There has existed an ioctl command,
KDSETRAD, for the same purpose. However, KDSETRAD is dependent on
the AT keyboard. KDSETREPEAT provides more generic interface.
KDSETRAD will still be supported in the atkbd driver.
- Added new configuration options:
ATKBD_DFLT_KEYMAP
Specify a keymap to be used as the default, built-in keymap.
(There has been undocumented options, DKKEYMAP, UKKEYMAP, GRKEYMAP,
SWKEYMAP, RUKEYMAP, ESKEYMAP, and ISKEYMAP to set the default keymap.
These options are now gone for good. The new option is more general.)
KBD_DISABLE_KEYMAP_LOADING
Don't allow the user to change the keymap.
|
| 44551 |
07-Mar-1999 |
hm |
update the i4b include files to i4b release 0.71.00
|
| 44487 |
05-Mar-1999 |
bde |
The magic "no-cpu" cpu number is 0xff. Don't misrepresent cpu
numbers as chars or use bogus casts in an attempt to unmisrepresnt
them. In top, don't assume that 0xff is the only negative cpu
number when cpu numbers are (mis)represented.
|
| 44464 |
04-Mar-1999 |
joerg |
Adopt syscons's recent change from key_t to keyent_t (this part of
pcvt is plug-compatible to syscons to facilitate an identical
VT-switching interface), so PR misc/1247 can be closed.
|
| 44429 |
02-Mar-1999 |
dg |
Correct casts in vtophys and avtophys to be vm_offset_t.
|
| 44364 |
01-Mar-1999 |
imp |
Don't define MACHINE, MACHINE_ARCH, _MACHINE or _MACHINE_ARCH if
already defined. This allows for cross building to work because we
need to lie to make to tell it to use the target names rather than the
host names.
This should have no effect on either architecture. I've confirmed
that the intel build by make buildworld's for the past 3 months.
|
| 44289 |
26-Feb-1999 |
tegge |
Don't call assign_apic_irq with a value for irq that is out of range.
|
| 44262 |
25-Feb-1999 |
bde |
Fixed my recent breakage of the ELF case.
|
| 44215 |
22-Feb-1999 |
bde |
Added a per-cpu variable `switchticks' for use in scheduling.
|
| 44186 |
21-Feb-1999 |
n_hibma |
1) Added define for USB as an interface
2) Added define for maximum number of buttons for Mouse Systems
|
| 44157 |
19-Feb-1999 |
luoqi |
Introduce machine-dependent macro pgtok() to convert page count to number
of kilobytes. Its definition for each architecture could be optimized to
avoid potential numerical overflows.
|
| 44146 |
19-Feb-1999 |
luoqi |
Hide access to vmspace:vm_pmap with inline function vmspace_pmap(). This
is the preparation step for moving pmap storage out of vmspace proper.
Reviewed by: Alan Cox <alc@cs.rice.edu>
Matthew Dillion <dillon@apollo.backplane.com>
|
| 44131 |
19-Feb-1999 |
jdp |
On the i386, load the ELF dynamic linker where an mmap(0, ...) would
put it, just like on the Alpha. It was wrong to load it at the
fixed address 0x08000000. That should only be done if the dynamic
linker is an executable (not a shared object) with a specific load
address encoded in the object file itself.
This fixes the recent breakage in the Linux emulator.
|
| 44063 |
15-Feb-1999 |
roger |
Corrected ioctl numbers conflict.
Thanks to Vsevolod Lobko <seva@alex-ua.com> for spotting this.
P:
|
| 43889 |
11-Feb-1999 |
roger |
Added new ioctls for Hauppage Infra-Red Remote Control support,
Obtaining the supported channel sets and Controlling the GPIO port.
Submitted by: Roger Hardiman and Vsevolod Lobko <seva@alex-ua.com>
|
| 43750 |
07-Feb-1999 |
jdp |
Change the load address of the ELF dynamic linker from "2L*MAXDSIZ"
to an architecture-specific value defined in <machine/elf.h>. This
solves problems on large-memory systems that have a high value for
MAXDSIZ.
The load address is controlled by a new macro ELF_RTLD_ADDR(vmspace).
On the i386 it is hard-wired to 0x08000000, which is the standard
SVR4 location for the dynamic linker.
On the Alpha, the dynamic linker is loaded MAXDSIZ bytes beyond
the start of the program's data segment. This is the same place
a userland mmap(0, ...) call would put it, so it ends up just below
all the shared libraries. The rationale behind the calculation is
that it allows room for the data segment to grow to its maximum
possible size.
These changes have been tested on the i386 for several months
without problems. They have been tested on the Alpha as well,
though not for nearly as long. I would like to merge the changes
into 3.1 within a week if no problems have surfaced as a result of
them.
|
| 43706 |
06-Feb-1999 |
bde |
Added underscores to some names in svr4_locore.s so that it compiles
with -aout. Added translation back to elf names in asnames.h as
usual. The elf names were inconsistent in the aout case even
internally because a macro adds an underscore to just one of them.
Removed commented out code for a previous life of `svr4_esigcode'.
Didn't add an underscore to `svr4_esigcode' since it is correct for
aout although wrong for elf, like most internal names in assembler
files. These names should be in a different namespace so that gprof
can ignore them.
Fixed some disorder in asnames.h.
|
| 43664 |
05-Feb-1999 |
yokota |
- Don't assume the line length in the video memory is always the same as
the screen width.
- Store the current video mode information in the `video_adapter' struct.
- The size of the `v_offscreensize' field in the VESA mode information
block is u_int16, not u_int8.
|
| 43612 |
04-Feb-1999 |
kato |
Recognize Pentium II Xeon, Celeron and Pentium III cpus. Because CPU
names are printed on their packages and shown by BIOS, kernel does not
need to show details.
PR: 8751, 9320 and 9463
|
| 43524 |
02-Feb-1999 |
bde |
Added a hopefully-machine-independent macro for determining if a
reschedule is pending.
|
| 43434 |
30-Jan-1999 |
kato |
Moved pc98_system_parameter from .text to .data to make ELF kernel
work.
|
| 43387 |
29-Jan-1999 |
dillon |
More -Wall / -Wcast-qual cleanup. Also, EXEC_SET can't use
C_DECLARE_MODULE due to the linker_file_sysinit() function
making modifications to the data.
|
| 43348 |
28-Jan-1999 |
roger |
Added METEOR_DEV2 and METEOR_DEV3
|
| 43340 |
28-Jan-1999 |
newton |
Sun Bug ID 1251858 (on http://sunsolve1.sun.com) discusses the way that
Sun implemented iBCS2 compatibility on Solaris >= 2.6: The emulator
runs in user-mode, patching the LDT so that client programs making
syscalls through the old iBCS2 call gate get handled by the emulator
process. Unemulated syscalls therefore need their own call-gate that
bypasses the emulator. Sun chose LDT entry 4 to implement this, which
is what we've been using as LUDATA_SEL, so we need to change LUDATA_SEL
if we want to run Solaris executables.
Discussed with: Mike Smith
|
| 43314 |
28-Jan-1999 |
dillon |
Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile
|
| 42880 |
20-Jan-1999 |
jkh |
Make more messages conditional on bootverbose
|
| 42543 |
12-Jan-1999 |
eivind |
Silence warnings.
|
| 42504 |
11-Jan-1999 |
yokota |
The first stage of console driver reorganization: activate new
keyboard and video card drivers.
Because of the changes, you are required to update your kernel
configuration file now!
The files in sys/dev/syscons are still i386-specific (but less so than
before), and won't compile for alpha and PC98 yet.
syscons still directly accesses the video card registers here and
there; this will be rectified in the later stages.
|
| 42442 |
09-Jan-1999 |
nsouch |
Change /dev/smb and /dev/iic interface to allow user programs to interact with
devices dynamically. That means,
+ only one /dev/iic or /dev/smb device for each smb/iic bus to access
+ I2C/SMB device address must be given to any ioctl
+ new devices may be plugged and accessed after boot, which was
impossible previously (device addresses were hardcoded into
the kernel)
|
| 42427 |
09-Jan-1999 |
bde |
Don't put operands in clobber lists, since this is dubious for old
versions of gcc and broken for current versions of egcs.
Submitted by: "John S. Dyson" <dyson@iquest.net> but rewritten by me
|
| 42411 |
08-Jan-1999 |
bde |
Fixed some style bugs. Clarified a comment.
|
| 42410 |
08-Jan-1999 |
bde |
Unspammed includes in <machine/cpufunc.h> in the !SMP case. Partially
unspammed them in the SMP case.
|
| 42406 |
08-Jan-1999 |
bde |
Moved declarations related to copying and zeroing to the right place.
|
| 42395 |
08-Jan-1999 |
yokota |
Update #ifdef directive.
# I forgot this bit when I committed VESA KLD update a few days ago ;-<
|
| 42367 |
07-Jan-1999 |
peter |
OBJFORMAT_DEFAULT = elf now. (this is where /usr/bin/objformat and
libc/gen/getobjformat.c get their default from)
|
| 42235 |
01-Jan-1999 |
des |
Correct typo in macro name.
|
| 42220 |
01-Jan-1999 |
peter |
Part 3 of the pcvt/voxware revival.
Reviewed by: core
|
| 42107 |
27-Dec-1998 |
phk |
Initial entry of ISDN4BSD into the FreeBSD tree.
ISDN4BSD is the work of our brand-new comitter: Hellmuth Michaelis,
who has done a tremendous amount of work to bring us this far.
There are still some outstanding issues and files to bring into
the tree, and for now it will be needed to pick up all the extra
docs from the isdn4bsd release.
It is probably also a very good idea to subscribe to the isdn@freebsd.org
mailing list before you try this out.
These files correspond to release "beta Version 0.70.00 / December
1998" from Hellmuth.
|
| 42090 |
27-Dec-1998 |
phk |
follow up to:
Pre 3.0 branch cleanup casualty #4: pcvt
|
| 42086 |
27-Dec-1998 |
sos |
Pre 3.0 branch cleanup sos#2: sound
Superceded by the snd driver...
|
| 41927 |
19-Dec-1998 |
dt |
Little reorganization:
- created internal names for fixed-size integral types, like __int32_t. They
will be used to make several headers self-sufficient.
- <stdlib.h> don't include <machine/types.h> anymore.
- created <sys/inttypes.h>, which can be used as <inttypes.h>.
- declaration of uoff_t and ufs_daddr_t moved to <sys/types.h>.
Reviewed by: bde
|
| 41591 |
07-Dec-1998 |
archie |
The "easy" fixes for compiling the kernel -Wunused: remove unreferenced static
and local variables, goto labels, and functions declared but not defined.
|
| 41367 |
26-Nov-1998 |
tegge |
Attempt to handle interrupts delivered to all IO APICs by using the first
IO APIC with a sufficient number of pins.
|
| 41362 |
26-Nov-1998 |
eivind |
Staticize.
|
| 41318 |
24-Nov-1998 |
eivind |
Move the declaration of PPro_vmtrr from the header file to pmap.c,
replacing the one in the header file with a definition. This makes it
easier to work with tools that grok ANSI C only.
|
| 41271 |
20-Nov-1998 |
yokota |
- Added support for Genius Kidspad tablet.
# `moused' is getting too over-loaded now. If we want something
# more than simple mouse emulation for tablets or remote devices,
# we should start writing a separate daemon...
Submitted by: luigi
|
| 40751 |
30-Oct-1998 |
msmith |
Add the ability to specify where on the at_shutdown queue a handler is
installed.
Remove cpu_power_down, and replace it with an entry at the end of the
SHUTDOWN_FINAL queue in the only place it's used (APM).
Submitted by: Some ideas from Bruce Walter <walter@fortean.com>
|
| 40713 |
29-Oct-1998 |
wollman |
A small fragment of new ISA framework: manifest constants for the resources
implemented by the i386 root nexus.
|
| 40513 |
18-Oct-1998 |
peter |
Add an ELF_MACHINE_OK() macro for compatability with the Alpha version.
|
| 40286 |
13-Oct-1998 |
dg |
Fixed two potentially serious classes of bugs:
1) The vnode pager wasn't properly tracking the file size due to
"size" being page rounded in some cases and not in others.
This sometimes resulted in corrupted files. First noticed by
Terry Lambert.
Fixed by changing the "size" pager_alloc parameter to be a 64bit
byte value (as opposed to a 32bit page index) and changing the
pagers and their callers to deal with this properly.
2) Fixed a bogus type cast in round_page() and trunc_page() that
caused some 64bit offsets and sizes to be scrambled. Removing
the cast required adding casts at a few dozen callers.
There may be problems with other bogus casts in close-by
macros. A quick check seemed to indicate that those were okay,
however.
|
| 40179 |
10-Oct-1998 |
kato |
mp_machdep.c: Set a vector to boot code (PC-98).
locore.s: Tell the bios to warmboot next time (PC-98).
|
| 40169 |
10-Oct-1998 |
kato |
PC-98 doesn't have CMOS ram.
|
| 40067 |
08-Oct-1998 |
kato |
BIOS ROM base address is 0xe8000 on PC-98.
|
| 40003 |
06-Oct-1998 |
kato |
- Implement enabling write allocate on AMD K5/K6/K6-2 cpus.
The code was originaly contributed by Kelly Yancey
<kbyanc@freedomnet.com> in PR i386/6269 and revised by Akio Morita
<amorita@meadow.scphys.kyoto-u.ac.jp> and me. Test was performed by
Akio Morita and Toshiomi Moriki <moriki@db.is.kyushu-u.ac.jp>.
- Fix stylistic bug in identcpu.c.
- Update copyright in initcpu.c
- Fix typo in LINT.
PR: 6269 and 6270
|
| 39927 |
03-Oct-1998 |
jdp |
Two new C symbols were added to apm_setup.s but not put into
asnames.h. That broke builds of ELF kernels. *Whap*.
|
| 39865 |
01-Oct-1998 |
msmith |
Remove the bi_vesa field, as vesa modeswitching is no longer performed
by the bootblocks.
|
| 39864 |
01-Oct-1998 |
msmith |
Pass the BIOS unit number from which the kernel/loader was obtained in
the bootinfo struct so that it can be reused later.
|
| 39858 |
01-Oct-1998 |
yokota |
Yet another round of fixes for the VESA support code.
- Express various sizes in bytes, rather than Kbytes, in the video
mode and adapter information structures.
- Fill 0 in the linear buffer size field if the linear frame buffer
is not available.
- Remove SW_VESA_USER ioctl. It is still experimetal and was not meant
to be released.
- Fix missing cast operator.
- Correctly handle pointers returned by the VESA BIOS. The pointers
may point to the area either in the BIOS ROM or in the buffer supplied
by the caller.
- Set the destructive cursor at the right moment.
|
| 39838 |
30-Sep-1998 |
sos |
Changed tuner code to autodetect tuner i2c address.
Addresses were incorrectly hardcoded.
Submitted by: Roger Hardiman <roger@cs.strath.ac.uk>
|
| 39755 |
29-Sep-1998 |
bde |
Don't pretend to support ix86's with 16-bit ints by using longs just
to ensure 32-bit variables. Doing so broke ix86's with 64-bit longs.
|
| 39648 |
25-Sep-1998 |
peter |
Goodbye BOUNCE_BUFFERS, for a hack it has served us well.
The last consumer of this code (the old SCSI system) has left us and
the CAM code does it's own bouncing. The isa dma system has been
doing it's own bouncing for a while too.
Reviewed by: core
|
| 39643 |
25-Sep-1998 |
yokota |
Cosmetic change: adjust copyright notice.
|
| 39591 |
23-Sep-1998 |
yokota |
Fix and update for VESA BIOS support in syscons.
- Handle pixel (raster text) mode properly.
- Clear screen and paint border right.
- Paint text attribute (colors).
- Fix off-by-one errors.
- Add some sanity checks.
- Fix some function prototypes.
- Add some comment lines.
- Define generic text mode numbers so that the user can just give
"80x25", "80x60", "132x25"..., rather than "VGA_xxx", to `vidcontrol'
to change the current video mode. `vidoio.c' and `vesa.c' will map
these numbers to real video mode numbers appropriate and available
with the given video hardware. I believe this will be useful to make
syscons more portable across archtectures.
|
| 39488 |
19-Sep-1998 |
jdp |
Fix breakage of ELF kernel builds caused by the addition of an
assembly language reference to a C symbol without the addition of
the corresponding entry in asnames.h.
|
| 39287 |
15-Sep-1998 |
sos |
Add VESA support to syscons.
Kazu writes:
The VESA support code requires vm86 support. Make sure your kernel
configuration file has the following line.
options "VM86"
If you want to statically link the VESA support code to the kernel,
add the following option to the kernel configuration file.
options "VESA"
The vidcontrol command now accepts the following video mode names:
VESA_132x25, VESA_132x43, VESA_132x50, VESA_132x60, VESA_800x600
The VESA_800x600 mode is a raster display mode. The 80x25 text will
be displayed on the 800x600 screen. Useful for some laptop computers.
vidcontrol accepts the new `-i <info>' option, where <info> must be
either `adapter' or `mode'. When the `-i adapter' option is given,
vidcontrol will print basic information (not much) on the video
adapter. When the `-i mode' option is specified, vidcontrol will
list video modes which are actually supported by the video adapter.
Submitted by: Kazutaka YOKOTA yokota@FreeBSD.ORG
|
| 39197 |
14-Sep-1998 |
jdp |
Add new functions fill_fpregs() and set_fpregs(), like fill_regs()
and set_regs() but for the floating point register state. The code
is stolen from procfs_machdep.c, and moved out of there into
machdep.c.
These functions are needed for generating ELF core dumps.
|
| 39189 |
14-Sep-1998 |
jdp |
Add generic defines ELF_ARCH, ELF_CLASS, and ELF_DATA. These give
the relevant characteristics of the native machine, for building
and checking Elf_Ehdr structures.
Add structures to represent ELF "note" headers. Add defines for the
note types used in ELF core files.
|
| 39180 |
14-Sep-1998 |
msmith |
Add extra bootinfo fields for the three-stage bootloader; the end of the
loaded kernel aggregate, a pointer to the kernel environment data and
a pointer to the preloaded module metadata.
|
| 39040 |
10-Sep-1998 |
sos |
Correct SECAM B-Delay and add XUSSR channel set.
Submitted by: Vsevolod Lobko <seva@alex-ua.com>
|
| 38960 |
09-Sep-1998 |
jdp |
Add a new library function getobjformat(). It checks all the
standard places ("/etc/objformat", ${OBJFORMAT}, argv) for an
indication of the user's preferred object file format. This
consolidates some code that was starting to be duplicated in more
and more places.
Use the new function in ldconfig.
Note: I don't think that gcc should use getobjformat(), even though
it could. The compiler should limit itself to functions that are
widespread, to ease porting and cross-compilation.
|
| 38928 |
07-Sep-1998 |
jdp |
Make profiling work for ELF. gprof now autodetects the format of
the executable file, so it will work for both a.out and ELF format
files. I have split the object format specific code into separate
source files. It's cleaner than it was before, but it's still
pretty crufty.
Don't cheat on your make world for this update. A lot of things
have to be rebuilt for it to work, including the compiler and all
of the profiled libraries.
|
| 38888 |
06-Sep-1998 |
tegge |
Maintain a mapping from irq number to (ioapic number, int pin) tuple,
and use this when masking/unmasking interrupts.
Maintain a mapping from (iopaic number, int pin) tuple to irq number,
and use this when configuring devices and programming the ioapics.
Previous code assumed that irq number was equal to int pin number, and
that the ioapic number was 0.
Don't let an AP enter _cpu_switch before all local apics are initialized.
|
| 38780 |
03-Sep-1998 |
nsouch |
Reviewed by: Doug Rabson
Submitted by: nsouch
I2C and SMB ioctls
|
| 38707 |
31-Aug-1998 |
sos |
Renamed BT848[SG]CAPAREA to BT848_[SG]CAPAREA.
Added PR kern/7177 for SECAM Video Highway Xtreme with single crystal
PLL configuration submitted by Vsevolod Lobko <seva@alex-ua.com>.
In kernel configuration file add
options OVERRIDE_CARD=2
options OVERRIDE_TUNER=11
options BKTR_USE_PLL
Submitted by: Roger Hardiman <roger@cs.strath.ac.uk>
|
| 38706 |
31-Aug-1998 |
sos |
Added Capture Area ioctl - BT848[SG]CAPAREA.
Normally the full 640x480 (768x576 PAL) image is grabbed. This ioctl
allows a smaller area from anywhere within the video image to be
grabbed, eg a 400x300 image from (50,10).
See restrictions in BT848SCAPAREA.
Submitted by: Roger Hardiman <roger@cs.strath.ac.uk>
|
| 38673 |
31-Aug-1998 |
kato |
- hw.machine_arch returns cpu architecture type.
- moved definition of MACHINE_ARCH from cpu.h to parm.h as alpha.
- Added definitions of _MACHINE and _MACHINE_ARCH.
- Added hw.ispc98. The hw.ispc98 is 1 in PC98 kernel and is 0 in
IBM-PC kernel.
Discussed with: John Birrell <jb@FreeBSD.ORG>
|
| 38517 |
24-Aug-1998 |
dfr |
Change various syscalls to use size_t arguments instead of u_int.
Add some overflow checks to read/write (from bde).
Change all modifications to vm_page::flags, vm_page::busy, vm_object::flags
and vm_object::paging_in_progress to use operations which are not
interruptable.
Reviewed by: Bruce Evans <bde@zeta.org.au>
|
| 38505 |
24-Aug-1998 |
bde |
Fixed printf format errors. Only one left in LINT on i386's.
|
| 38422 |
18-Aug-1998 |
msmith |
Presently there is only one `currentldt' variable for all cpus
in a SMP system. Unexpected things could happen if each cpu
has a different ldt setting and one cpu tries to use value
of currentldt set by another cpu.
The fix is to move currentldt to the per-cpu area. It includes
patches I filed in PR i386/6219 which are also user ldt related.
PR: i386/7591, i386/6219
Submitted by: Luoqi Chen <luoqi@watermarkgroup.com>
|
| 38392 |
17-Aug-1998 |
dfr |
Add macros for accessing device memory.
|
| 38358 |
16-Aug-1998 |
jdp |
Make ELF kernels build again.
|
| 38357 |
16-Aug-1998 |
jdp |
Revamp the ELF include files to better support architecture-independent
applications. Here's how it works.
The kernel should include <machine/elf.h> to get the definitions
for the native architecture. It can reference the various ELF
structures with generic names like Elf_Sym, Elf_Shdr, etc. A define
__ELF_WORD_SIZE is also available with the value 32 or 64 as
appropriate for the native architecture.
Generic applications should include <elf.h>, which is just a wrapper
for <machine/elf.h>.
Applications such as object file dumpers that need to deal with
foreign ELF files can include <sys/elf32.h> and/or <sys/elf64.h>.
Both can be included from the same source file if desired. The
structure names must be referenced using wordsize-specific names
like Elf32_Sym, Elf64_Shdr, etc.
I haven't change the alpha stuff, but I haven't broken it either.
|
| 38349 |
16-Aug-1998 |
bde |
pmap.c:
Cast pointers to (vm_offset_t) instead of to (u_long) (as before) or to
(uintptr_t)(void *) (as would be more correct). Don't cast vm_offset_t's
to (u_long) just to do arithmetic on them.
mp_machdep.c:
Cast pointers to (uintptr_t) instead of to (u_long). Don't forget
to cast pointers to (void *) first or to recover from integral
possible integral promotions, although this is too much work for
machine-dependent code.
vm code generally avoids warnings for pointer vs long size mismatches
by using vm_offset_t to represent pointers; pmap.c often uses plain
`unsigned int' instead of vm_offset_t and didn't use u_long elsewhere,
but this style was messed up by code apparently imported from mp_machdep.c.
|
| 38250 |
11-Aug-1998 |
bde |
Removed a bogus ifdef that broke using SWI_* in LKMs.
Fixed a comment.
|
| 38244 |
11-Aug-1998 |
bde |
Implemented dynamic registration of software interrupt handlers. Not
used yet.
Use dummy SWI handlers to avoid some checks for null pointers.
|
| 38052 |
03-Aug-1998 |
yokota |
1. Reorganized screen saver related code so that both the LKM screen
saver and splash screen can all work properly with syscons. Note that
the splash screen option (SC_SPLASH_SCREEN) does not work yet, as it
requires additional code from msmith.
- Reorganized the splash screen code to match the latest development
in this area.
- Delay screen switch in `switch_scr()' until the screen saver is
stopped, if one is running,
- Start the screen saver immediately, if any, when the `saver' key is
pressed. (There will be another commit for `kbdcontrol' to support
this keyword in the keymap file.)
- Do not always stop the screen saver when mouse-related ioctls
are called. Stop it only if the mouse is moved or buttons are
clicked; don't stop it if any other mouse ioctls are called.
2. Added provision to write userland screen savers. (Contact me if you
are interested in writing one.)
- Added CONS_IDLE, CONS_SAVERMODE, and CONS_SAVERSTART ioctls to
support userland screen savers.
3. Some code clean-ups.
|
| 37917 |
28-Jul-1998 |
jlemon |
u_int --> unsigned int, remove (now unneeded) <sys/types.h>
|
| 37903 |
28-Jul-1998 |
jlemon |
Add wrappers for i386_*_ioperm, i386_vm86 so userland code does
not have to call sysarch() directly.
Added man pages for above, as well as sysarch()
|
| 37642 |
14-Jul-1998 |
msmith |
Add missing register name defines.
|
| 37629 |
14-Jul-1998 |
bde |
Changed to the C9x draft spelling of the (unsigned) integral type
suitable for holding object pointers (ptrint_t -> uintptr_t).
Added corresponding signed type (intptr_t). Changed/added
corresponding non-C9x types for function pointers to match. Don't
use nonstandard types to implement these types, and don't comment
on them in <machine/types.h>.
|
| 37553 |
11-Jul-1998 |
bde |
Don't pretend to support ix86's with 16-bit ints by using longs just to
ensure 32-bit variables. Doing so mainly bogotified some printf formats.
Fixed disorder in md_var.h.
|
| 37552 |
11-Jul-1998 |
bde |
Don't pretend to support ix86's with 16-bit ints by using longs
just to ensure 32-bit variables. Doing so broke and/or pessimized
i386's with 64-bit longs (unnecessary use of 64-bit variables
caused remarkably few problems in C code, but the inline asm here
tended to fail because there are no 64-bit registers). Since the
interfaces here are very machine-dependent and shouldn't be used
outside of the kernel, use a standard types of "known" width instead
of fixed-width types.
Changed all quad_t's to u_int64_t's. quad_t isn't standard, and
using signed types for 64-bit registers was bogus (but made no
difference).
|
| 37550 |
11-Jul-1998 |
bde |
Don't pretend to support ix86's with 16-bit ints by using longs just
to ensure 32-bit variables. Doing so broke i386's with 64-bit
longs. Use fixed-size integral types instead of plain ints, shorts,
chars and pointers since the bootinfo struct layout is a binary
interface. The boot blocks could reasonably be implemented using
16-bit code.
|
| 37542 |
10-Jul-1998 |
bde |
Oops, fptrint_t still needs to be declared in <machine/profile.h> in the
!KERNEL case. The kludge to get it declared in libc/gmon/mcount.c wasn't
sufficient because fptrint_t is used in <sys/gmon.h>.
|
| 37540 |
10-Jul-1998 |
bde |
Added a kernel-only typedef (ptrint_t) giving an integral type that is
least unsuitable for holding an object pointer. This should have been
used to fix warnings about casts between pointers and ints on alphas.
Moved corresponding existing general typedef (fptrint_t) for function
pointers from the i386 <machine/profile.h> to a kernel-only typedef
in <machine/types.h>. Kludged libc/gmon/mcount.c so that it can
still see this typedef.
|
| 37414 |
06-Jul-1998 |
imp |
Add the ability to suspend as well as hibernate to the system. This
is the kernel part of my commits, the userlevel stuff will be done in
a separate commit. Add the ability to suspend as well as hibernate to
syscons. Create a new virtual key like hibernate for suspend. Update
apm_bios.h to define more apm bios goodies.
|
| 37091 |
21-Jun-1998 |
mckay |
Remove bogus comment that teleported in from sys/i386/i386/mp_machdep.c.
|
| 37086 |
21-Jun-1998 |
bde |
Converted add_interrupt_randomness() to take a `void *' arg. Rewrote
mmioctl() to fix hundreds of style bugs and a few error handling bugs
(don't check for superuser privilege for inappropriate ioctls, don't
check the input arg for the output-only MEM_RETURNIRQ ioctl, and don't
return EPERM for null changes).
|
| 37050 |
18-Jun-1998 |
bde |
Changed the type of an isa/general interrupt handler to take a
`void *' arg. Fixed or hid most of the resulting type mismatches.
Handlers can now be updated locally (except for reworking their
global declarations in isa_device.h).
|
| 37034 |
17-Jun-1998 |
bde |
Don't declare isa device structs or isa interrupt handlers in <sys/conf>,
and don't depend on them being declared there. This will cause lots of
warnings for a few minutes until config is updated. Interrupt handlers
should never have been configured by config, and the machine generated
declarations get in the way of changing the arg type from int to void *.
|
| 36996 |
15-Jun-1998 |
bde |
Oops, uoff_t can't be used here yet.
|
| 36991 |
14-Jun-1998 |
ahasty |
Reviewed by: Amancio
Submitted by: Randall Hopper <rhh@ct.picker.com>
The patch supports using the X10 Mouse Remote in both stand-alone and
pass-through configurations, so you can plug your mouse and remote into the
same serial port, use the mouse for X, and use the remote for other apps
like Fxtv. For instance, we can now control fxtv via the remote control
just like a TV : change channels, mute, increase volume, zoom video,
freeze frame 8)
The mouse events are channeled through the syscons/sysmouse I/F like
normal, and the remote buttons are "syphoned off" to a UNIX-domain stream
socket (defined as _PATH_MOUSEREMOTE in <machine/mouse.h>) for a
remote-aware app to grab and use.
For further info on the X10 Mouse Remote see:
http://www.x10.com/products/x10_mk19a.htm
|
| 36977 |
14-Jun-1998 |
bde |
Removed LOCORE ifdef. This header isn't used for locore stuff.
Use uoff_t instead of `unsigned long long' for unsigned offsets.
Fixed some style bugs.
|
| 36976 |
14-Jun-1998 |
bde |
Define 64-bit types in terms of __int64_t and __uint64_t.
Define an unsigned version of off_t (uoff_t) if KERNEL is defined.
This is useful for micro-optimizing expressions involving off_t's
where you know that the values are non-negative but the compiler
doesn't know it.
Fixed a gratuitous ANSIism.
|
| 36975 |
14-Jun-1998 |
bde |
Added typedefs for __int64_t and __uint64_t. These will be used to avoid
explicit use of `[unsigned] long long' and `[u]quad_t'.
Fixed disorder of and lack of comments for the types added in the previous
two commits. Improved some comments. The comments should be elswhere
(not duplicated in every MD file).
|
| 36956 |
13-Jun-1998 |
steve |
Add a macro tweak.
PR: 6932
Submitted by: Nick Sayer <nsayer@quack.kfu.com>
|
| 36909 |
12-Jun-1998 |
dg |
Increased MAXTSIZ to 128MB...there are binaries that get quite large.
Increased DFLDSIZ to 128MB, as it is a better default.
Reviewed by: jkh
|
| 36767 |
08-Jun-1998 |
bde |
Fixed pedantic semantics errors (bitfields not of type int, signed int
or unsigned int (this doesn't change the struct layout, size or
alignment in any of the files changed in this commit, at least for
gcc on i386's. Using bitfields of type u_char may affect size and
alignment but not packing)).
|
| 36441 |
28-May-1998 |
phk |
Some cleanups related to timecounters and weird ifdefs in <sys/time.h>.
Clean up (or if antipodic: down) some of the msgbuf stuff.
Use an inline function rather than a macro for timecounter delta.
Maintain process "on-cpu" time as 64 bits of microseconds to avoid
needless second rollover overhead.
Avoid calling microuptime the second time in mi_switch() if we do
not pass through _idle in cpu_switch()
This should reduce our context-switch overhead a bit, in particular
on pre-P5 and SMP systems.
WARNING: Programs which muck about with struct proc in userland
will have to be fixed.
Reviewed, but found imperfect by: bde
|
| 36290 |
22-May-1998 |
des |
Add CPU_PII to the list.
|
| 36168 |
19-May-1998 |
tegge |
Disallow reading the current kernel stack. Only the user structure and
the current registers should be accessible.
Reviewed by: David Greenman <dg@root.com>
|
| 36138 |
17-May-1998 |
tegge |
Change simple lock handling to not depend upon having a local apic
available. The per-cpu variable ss_tpr has been replaced by ss_eflags.
This reduced the number of interrupts sent to the wrong CPU, due to
the cpu having the global lock being inside a critical region.
Remove some unneeded manipulation of tpr register in mplock.s.
Adjust code in mplock.s to be aware of variables on the stack being
destroyed by MPgetlock if GRAB_LOPRIO is defined.
|
| 36135 |
17-May-1998 |
tegge |
Add forwarding of roundrobin to other cpus. This gives a more regular
update of cpu usage as shown by top when one process is cpu bound
(no system calls) while the system is otherwise idle (except for top).
Don't attempt to switch to the BSP in boot(). If the system was idle when
an interrupt caused a panic, this won't work. Instead, switch to the BSP
in cpu_reset.
Remove some spurious forward_statclock/forward_hardclock warnings.
|
| 36125 |
17-May-1998 |
tegge |
For SMP, use prv_PPAGE1/prv_PMAP1 instead of PADDR1/PMAP1.
get_ptbase and pmap_pte_quick no longer generates IPIs.
This should reduce the number of IPIs during heavy paging.
|
| 36119 |
17-May-1998 |
phk |
s/nanoruntime/nanouptime/g
s/microruntime/microuptime/g
Reviewed by: bde
|
| 36090 |
16-May-1998 |
ahasty |
1.31 Randall Hopper <rhh@ct.picker.com>
submitted ioctl to clear the video buffer
prior to starting video capture
Amancio : clean up yuv12 so that it does not
affect rgb capture. Basically, fxtv after
capturing in yuv12 mode , switching to rgb
would cause the video capture to be too bright.
1.32 disable inverse gamma function for rgb and yuv
capture. fixed meteor brightness ioctl it now
converts the brightness value from unsigned to
signed.
1.33 added sysctl: hw.bt848.tuner, hw.bt848.reverse_mute,
hw.bt848.card
card takes a value from 0 to bt848_max_card
tuner takes a value from 0 to bt848_max_tuner
reverse_mute : 0 no effect, 1 reverse tuner
mute function some tuners are wired reversed :(
|
| 35976 |
12-May-1998 |
dyson |
Fix alot of silly LINT that I left in the code.
|
| 35933 |
11-May-1998 |
dyson |
Support better performance with P6 architectures and in SMP
mode. Unnecessary TLB flushes removed. More efficient
page zeroing on P6 (modify page only if non-zero.)
|
| 35932 |
11-May-1998 |
dyson |
Attempt to set write combining mode for graphics devices.
|
| 35767 |
06-May-1998 |
gibbs |
Implement bus_dmamem_* functions and correct a few nits reported by Peter Wemm.
|
| 35477 |
27-Apr-1998 |
des |
Cast return values to the appropriate fp_*_t. Note that the man page
incorrectly refers to them as e.g. fp_except rather than fp_except_t.
PR: misc/6310
Submitted by: Niall Smart
|
| 35385 |
22-Apr-1998 |
peter |
Add a couple of missing symbols referred to in asm code.
|
| 35300 |
19-Apr-1998 |
bde |
Support compiling with `gcc-pedantic' (don't use hard newlines in
(asm) string constants or trailing commas in enum declarations).
|
| 35087 |
06-Apr-1998 |
peter |
Fix VM86 compiles. a #include "opt_vm86.h" was missing, and the my_tr
variable was needed in the non-SMP case.
Submitted by: Jonathan Lemon <jlemon@americantv.com>
|
| 35077 |
06-Apr-1998 |
peter |
Use real types for the SMP pages being allocated rather than arrays of
ints. Remove some no longer needed casts. Initialize the per-cpu
global data area using the structs rather than knowing too much about
layout, alignment, etc.
|
| 35069 |
06-Apr-1998 |
peter |
A pair of C structures used for laying out the SMP per-cpu data space.
|
| 35068 |
06-Apr-1998 |
peter |
some missing symbols
|
| 35062 |
06-Apr-1998 |
phk |
Remove stuff related to microtime.s, which is gone.
|
| 35060 |
06-Apr-1998 |
phk |
Make read_random() take a (void *) argument instead of (char *)
|
| 35058 |
06-Apr-1998 |
phk |
Make a kernel version of the timer* functions called timerval* to be
more consistent.
OK'ed by: bde
|
| 35029 |
04-Apr-1998 |
phk |
Time changes mark 2:
* Figure out UTC relative to boottime. Four new functions provide
time relative to boottime.
* move "runtime" into struct proc. This helps fix the calcru()
problem in SMP.
* kill mono_time.
* add timespec{add|sub|cmp} macros to time.h. (XXX: These may change!)
* nanosleep, select & poll takes long sleeps one day at a time
Reviewed by: bde
Tested by: ache and others
|
| 34990 |
01-Apr-1998 |
tegge |
Add two workarounds for broken MP tables:
- Attempt to handle PCI devices where the interrupt is
an ISA/EISA interrupt according to the mp table.
- Attempt to handle multiple IO APIC pins connected to
the same PCI or ISA/EISA interrupt source. Print a
warning if this happens, since performance is suboptimal.
This workaround is only used for PCI devices.
With these two workarounds, the -SMP kernel is capable of running on
my Asus P/I-P65UP5 motherboard when version 1.4 of the MP table is disabled.
|
| 34989 |
01-Apr-1998 |
tegge |
Declare some variables modified by interrupt handlers as volatile.
|
| 34840 |
23-Mar-1998 |
jlemon |
Add the ability to make real-mode BIOS calls from the kernel. Currently,
everything is contained inside #ifdef VM86, so this option must be
present in the config file to use this functionality.
Thanks to Tor Egge, these changes should work on SMP machines. However,
it may not be throughly SMP-safe.
Currently, the only BIOS calls made are memory-sizing routines at bootup,
these replace reading the RTC values.
|
| 34832 |
23-Mar-1998 |
peter |
Several changes:
- Implement proper EISA probing.
- Better support for the new transputer based host cards.
- use standard termios settings, one can use the intial/lock devices.
- use a simple bcopy since some cards/systems apparently don't support
32 bit accesses.
- hard reset and halt host card CPU prior to download in case of a soft
restart.
- recognize new remote module types (ASIC vs. CD1400 based)
- a number of cosmetic changes (my fault, not Nick's)
Submitted by: Nick Sayer <nsayer@quack.kfu.com>
|
| 34736 |
21-Mar-1998 |
peter |
merge from 2.2
|
| 34206 |
07-Mar-1998 |
dyson |
This mega-commit is meant to fix numerous interrelated problems. There
has been some bitrot and incorrect assumptions in the vfs_bio code. These
problems have manifest themselves worse on NFS type filesystems, but can
still affect local filesystems under certain circumstances. Most of
the problems have involved mmap consistancy, and as a side-effect broke
the vfs.ioopt code. This code might have been committed seperately, but
almost everything is interrelated.
1) Allow (pmap_object_init_pt) prefaulting of buffer-busy pages that
are fully valid.
2) Rather than deactivating erroneously read initial (header) pages in
kern_exec, we now free them.
3) Fix the rundown of non-VMIO buffers that are in an inconsistent
(missing vp) state.
4) Fix the disassociation of pages from buffers in brelse. The previous
code had rotted and was faulty in a couple of important circumstances.
5) Remove a gratuitious buffer wakeup in vfs_vmio_release.
6) Remove a crufty and currently unused cluster mechanism for VBLK
files in vfs_bio_awrite. When the code is functional, I'll add back
a cleaner version.
7) The page busy count wakeups assocated with the buffer cache usage were
incorrectly cleaned up in a previous commit by me. Revert to the
original, correct version, but with a cleaner implementation.
8) The cluster read code now tries to keep data associated with buffers
more aggressively (without breaking the heuristics) when it is presumed
that the read data (buffers) will be soon needed.
9) Change to filesystem lockmgr locks so that they use LK_NOPAUSE. The
delay loop waiting is not useful for filesystem locks, due to the
length of the time intervals.
10) Correct and clean-up spec_getpages.
11) Implement a fully functional nfs_getpages, nfs_putpages.
12) Fix nfs_write so that modifications are coherent with the NFS data on
the server disk (at least as well as NFS seems to allow.)
13) Properly support MS_INVALIDATE on NFS.
14) Properly pass down MS_INVALIDATE to lower levels of the VM code from
vm_map_clean.
15) Better support the notion of pages being busy but valid, so that
fewer in-transit waits occur. (use p->busy more for pageouts instead
of PG_BUSY.) Since the page is fully valid, it is still usable for
reads.
16) It is possible (in error) for cached pages to be busy. Make the
page allocation code handle that case correctly. (It should probably
be a printf or panic, but I want the system to handle coding errors
robustly. I'll probably add a printf.)
17) Correct the design and usage of vm_page_sleep. It didn't handle
consistancy problems very well, so make the design a little less
lofty. After vm_page_sleep, if it ever blocked, it is still important
to relookup the page (if the object generation count changed), and
verify it's status (always.)
18) In vm_pageout.c, vm_pageout_clean had rotted, so clean that up.
19) Push the page busy for writes and VM_PROT_READ into vm_pageout_flush.
20) Fix vm_pager_put_pages and it's descendents to support an int flag
instead of a boolean, so that we can pass down the invalidate bit.
|
| 34203 |
07-Mar-1998 |
tegge |
Reenable redirection of clock interrupt to a higher priority vector.
setidt() now knows about f00f_hack(), and the APs now use the same
interrupt descriptor table as the BSP.
|
| 34197 |
07-Mar-1998 |
tegge |
The APs now reload the interrupt descriptor table pointer after
f00f_hack has run.
Use the global r_idt descriptor in f00f_hack when in SMP mode,
so the APs find the relocated interrupt descriptor table.
Submitted by: Partially from David A Adkins <adkin003@tc.umn.edu>
|
| 34058 |
05-Mar-1998 |
tegge |
Remove special handling for resuming clock interrupt when using APIC_IO.
The `generic' vector stubs do the right thing.
|
| 34034 |
04-Mar-1998 |
tegge |
Disable redirection of clock interrupt to a higher priority vector.
This does not work on most dual Pentium machines, due to setidt()
being neutralized by f00f_hack().
|
| 34031 |
04-Mar-1998 |
kato |
Defined CCR6 and CCR7 (configuration registers of M2 CPU.)
|
| 34027 |
04-Mar-1998 |
peter |
Fix recent breakage when compiling under elf.
_Xforward_irq -> Xforward_irq
_apic_isrbit_location -> apic_isrbit_location
_cpu_num_to_apic_id -> cpu_num_to_apic_id
_invltlb_ok -> invltlb_ok
|
| 34021 |
03-Mar-1998 |
tegge |
When entering the apic version of slow interrupt handler, level
interrupts are masked, and EOI is sent iff the corresponding ISR bit
is set in the local apic. If the CPU cannot obtain the interrupt
service lock (currently the global kernel lock) the interrupt is
forwarded to the CPU holding that lock.
Clock interrupts now have higher priority than other slow interrupts.
|
| 34020 |
03-Mar-1998 |
tegge |
Forward the signal if the process runs on a different CPU. This reduces
the signal handling latency for cpu-bound processes that performs very
few system calls.
The IPI for forcing an additional software trap is no longer dependent upon
BETTER_CLOCK being defined.
|
| 34019 |
03-Mar-1998 |
tegge |
Reduce timeout before assuming that forwarding of hardclock or softclock
failed. Don't complain on forwarding failure, unless
BETTER_CLOCK_DIAGNOSTIC is defined.
|
| 34017 |
03-Mar-1998 |
tegge |
forward_statclock and forward_hardclock are located in mp_machdep.c.
|
| 33936 |
01-Mar-1998 |
dyson |
1) Use a more consistent page wait methodology.
2) Do not unnecessarily force page blocking when paging
pages out.
3) Further improve swap pager performance and correctness,
including fixing the paging in progress deadlock (except
in severe I/O error conditions.)
4) Enable vfs_ioopt=1 as a default.
5) Fix and enable the page prezeroing in SMP mode.
All in all, SMP systems especially should show a significant
improvement in "snappyness."
|
| 33850 |
26-Feb-1998 |
ahasty |
Radio support for bt848 cards from Flemming Jacobsen <fj@trw.nl>
Amancio
|
| 33817 |
25-Feb-1998 |
dyson |
Fix page prezeroing for SMP, and fix some potential paging-in-progress
hangs. The paging-in-progress diagnosis was a result of Tor Egge's
excellent detective work.
Submitted by: Partially from Tor Egge.
|
| 33809 |
25-Feb-1998 |
bde |
Removed vestiges of previous microtime() implementation.
|
| 33757 |
23-Feb-1998 |
dyson |
Try to dynamically size the VM_KMEM_SIZE (but is still able to be overridden
in a way identically as before.) I had problems with the system properly
handling the number of vnodes when there is alot of system memory, and the
default VM_KMEM_SIZE. Two new options "VM_KMEM_SIZE_SCALE" and
"VM_KMEM_SIZE_MAX" have been added to support better auto-sizing for systems
with greater than 128MB.
Add some accouting for vm_zone memory allocations, and provide properly
for vm_zone allocations out of the kmem_map. Also move the vm_zone
allocation stats to the VM OID tree from the KERN OID tree.
|
| 33690 |
20-Feb-1998 |
phk |
Replace TOD clock code with more systematic approach.
Highlights:
* Simple model for underlying hardware.
* Hardware basis for timekeeping can be changed on the fly.
* Only one hardware clock responsible for TOD keeping.
* Provides a real nanotime() function.
* Time granularity: .232E-18 seconds.
* Frequency granularity: .238E-12 s/s
* Frequency adjustment is continuous in time.
* Less overhead for frequency adjustment.
* Improves xntpd performance.
Reviewed by: bde, bde, bde
|
| 33568 |
18-Feb-1998 |
msmith |
Remove the 'qcam' driver. Development has ceased, and the driver is
nonfunctional.
Submitted by: pst (conversation some time ago)
|
| 33530 |
18-Feb-1998 |
scrappy |
soundcard.h wasn't upgraded when i386/isa/snd was
|
| 33473 |
17-Feb-1998 |
scrappy |
Upgrade Luigi's audio driver to Jan/23 version... will bring in Feb/15th
version as soon as I've tested it...
Installed/tested on my home machine...any problems, please report directly
to me.
|
| 33453 |
17-Feb-1998 |
kato |
Enable NEC 86 sound card when PC98 is defined.
Submitted by: Takahashi Yoshihiro <nyan@wyvern.cc.kogakuin.ac.jp>
|
| 33395 |
15-Feb-1998 |
peter |
Update to support SI/XIO PCI host cards (Z280 based) and the enhanced
SXISA and SXPCI host cards (Transputer based).
PR: 4836, 5021, 5654
Submitted by: Nick Sayer <nick@specialix.com>
|
| 33279 |
12-Feb-1998 |
phk |
Add display of type KD_PIXEL.
|
| 33181 |
09-Feb-1998 |
eivind |
Staticize.
|
| 33109 |
05-Feb-1998 |
dyson |
1) Start using a cleaner and more consistant page allocator instead
of the various ad-hoc schemes.
2) When bringing in UPAGES, the pmap code needs to do another vm_page_lookup.
3) When appropriate, set the PG_A or PG_M bits a-priori to both avoid some
processor errata, and to minimize redundant processor updating of page
tables.
4) Modify pmap_protect so that it can only remove permissions (as it
originally supported.) The additional capability is not needed.
5) Streamline read-only to read-write page mappings.
6) For pmap_copy_page, don't enable write mapping for source page.
7) Correct and clean-up pmap_incore.
8) Cluster initial kern_exec pagin.
9) Removal of some minor lint from kern_malloc.
10) Correct some ioopt code.
11) Remove some dead code from the MI swapout routine.
12) Correct vm_object_deallocate (to remove backing_object ref.)
13) Fix dead object handling, that had problems under heavy memory load.
14) Add minor vm_page_lookup improvements.
15) Some pages are not in objects, and make sure that the vm_page.c can
properly support such pages.
16) Add some more page deficit handling.
17) Some minor code readability improvements.
|
| 33051 |
03-Feb-1998 |
bde |
Ifdefed some SMP and VM86 code. Note that although VM86 is not a global
option, the ifdef on it in a header works because only the name of the
VM86 extension is hidden.
|
| 33049 |
03-Feb-1998 |
bde |
Forward declare a union so that this file is self-sufficient.
Cleaned up ifdefs.
|
| 33048 |
03-Feb-1998 |
bde |
Fixed a gratuitous ANSIism.
|
| 33047 |
03-Feb-1998 |
bde |
Ifdefed use of a GNU feature.
|
| 33046 |
03-Feb-1998 |
bde |
Moved misplaced idempotency ifdef. Multiple inclusion was fatal since
there was a typedef outside the ifdef.
Fixed syntax error after the #endif for this ifdef.
Didn't fix the usual style bugs for this ifdef...
|
| 33044 |
03-Feb-1998 |
bde |
Changed `inline' to `__inline' so that this file can be compiled by
`gcc -ansi'.
Changed NULL to 0 so that this file is more self-sufficient (now
only <sys/types.h> is a prerequisite).
|
| 33043 |
03-Feb-1998 |
bde |
Don't declare prototypes for driver functions unless KERNEL is defined.
|
| 33042 |
03-Feb-1998 |
bde |
Fixed conflicts between <machine/console.h> and <machine/pcvt_ioctl.h>,
so that it is possible for kdump and truss to include them both. Use
#defines from pcvt_ioctl.h in conflicting cases, since pcvt_ioctl.h
gives a hint about the bogus third arg to _IO(). Ifdef the common
typedefs. Export `struct key_t' from pcvt_ioctl.h so pcvt_ioctl.h is
bug for bug compatible with console.h (now both are broken in C++
mode).
|
| 33025 |
02-Feb-1998 |
ahasty |
Bugs/Enhancements:
1. Takeshi Ohashi <ohashi@atohasi.mickey.ai.kyutech.ac.jp> submitted
code to support bktr_read . /usr/src/share/examples/rgb24.c now works 8)
2. Flemming Jacobsen <fj@schizo.dk.tfs.com> submitted code to support
radio available with in some bt848 based cards;additionally, wrote
code to correctly recognized his bt848 card.
3. Roger Hardiman <roger@cs.strath.ac.uk> submitted various fixes to smooth
out the microcode and made all modes consistent.
4. Added supported for yuv12 so we know can capture raw streams and feed it
to mpeg_encoder . The upshot is that we can now mpeg encode more and save
nearly 100 percent of the disk requirements previously for programs such
as fxtv first save the raw video image to disk then converted to a
format suitable for mpeg_encode.
|
| 33008 |
01-Feb-1998 |
bde |
Fixed disordering of busdma* and swi_vm.
|
| 33007 |
01-Feb-1998 |
bde |
Fixed a recently broken comment.
|
| 33004 |
01-Feb-1998 |
bde |
Use <machine/*.h> instead of <i386/include/*.h>.
|
| 32797 |
26-Jan-1998 |
peter |
re-sort back into order
|
| 32796 |
26-Jan-1998 |
peter |
Add missing definition for swi_vm
|
| 32781 |
25-Jan-1998 |
kato |
Undo previous commit. The cpuid symbol has been already used by SMP
stuff.
Pointed-out by: Manfred Antar <root@mantar.slip.netcom.com>
|
| 32772 |
25-Jan-1998 |
kato |
Added cpuid instruction.
|
| 32724 |
24-Jan-1998 |
dyson |
Add better support for larger I/O clusters, including larger physical
I/O. The support is not mature yet, and some of the underlying implementation
needs help. However, support does exist for IDE devices now.
|
| 32677 |
21-Jan-1998 |
gibbs |
Add prototypes for swi_vm, setsoftvm, schedsoftvm, and splsoftvm that were
missed when I originally committed the bus dma code.
|
| 32641 |
20-Jan-1998 |
jb |
Suggested by: bde
Move sigjmp_buf and jmp_buf structure definitions to machine/setjmp.h
so that i386 can continue to use int as the basic register type and
alpha can use long. Bruce was concerned about possible differing
alignment. I've left the definition of _JBLEN in machine/setjmp.h
even though Bruce's example used the number directly. I don't know if
any other code relies on _JBLEN, so I left it to avoid potential
breakage.
|
| 32517 |
15-Jan-1998 |
gibbs |
Implementation of Bus Space for FreeBSD-x86.
Obtained From: NetBSD
|
| 32411 |
10-Jan-1998 |
jb |
Add a machine dependent header for the i386 jmp_buf size instead of piling
machine dependent definitions into src/include/setjmp.h.
|
| 32348 |
08-Jan-1998 |
jmg |
update the AWE32 wave table driver to Iwai's 0.4.2c version. This also
includes the patches to make it work under -current from Randall Hopper.
Remove the old AWE driver.
|
| 32327 |
08-Jan-1998 |
alex |
Define integer types added by POSIX.1g. We already had int8_t, int16_t,
and int32_t -- this adds their unsigned counterparts uint8_t, uint16_t,
and uint32_t. Bruce has noted that C9x also defines these types (in a
different file), so this may have to be revisited with some ifdefs at a
later date.
Reviewed by: bde
|
| 32315 |
07-Jan-1998 |
yokota |
Added accent (dead) key support to syscons and kbdcontrol.
With a keymap with accent key definitions loaded to syscons, you press
an accent key followed by a regular letter key to produce an accented
letter. Press an accent key followed by the space bar to get the
accent letter itself.
Code is based on the ideas and work by jmrueda@diatel.upm.es and
totii@est.is.
PR: i386/4016
console.h
- Defined structures and constants for accent (dead) keys.
syscons.c, kbdtables.h
- When an accent key is pressed, set the corresponding index to
`accents'. If the next key is the space key, produce the accent char
itself. Otherwise search the accent key map entry, indexed by
`accents', for a matching pair of a regular char and an accented char.
- Added ioctl functions to set and get the accent key map (PIO_DEADKEYMAP
and GIO_DEADKEYMAP).
|
| 32151 |
01-Jan-1998 |
bde |
Moved the SMP declarations of INTREN() and INTRDIS() to the correct header,
i.e., the same header as corresponding non-SMP #defines.
|
| 32065 |
28-Dec-1997 |
steve |
Add back a #include <sys/types.h> so that this header is
self-sufficient again. This is a quick fix that should
really be remedied by removing all of the gratuitous changes
made in revision 1.20.
PR: 5351
|
| 32054 |
28-Dec-1997 |
phk |
More cleanup relating to our use of the TSC.
Look in the cpu_feature (CPUID output) to see if we have it.
|
| 32052 |
28-Dec-1997 |
phk |
wash, sort and put in order various nits from the i586_ctr -> tsc
commit.
Pointed out by: bde
|
| 32005 |
26-Dec-1997 |
phk |
Rename "i586_ctr" to "tsc" (both upper and lower case instances).
Fix a couple of printfs too.
Warning: This changes the names of a couple of kernel options!
|
| 31831 |
18-Dec-1997 |
peter |
Add missing references to Xcpuast, get_isrlock and checkstate_probed_cpus
|
| 31723 |
15-Dec-1997 |
tegge |
Add support for low resolution SMP kernel profiling.
- A nonprofiling version of s_lock (called s_lock_np) is used
by mcount.
- When profiling is active, more registers are clobbered in
seemingly simple assembly routines. This means that some
callers needed to save/restore extra registers.
- The stack pointer must have space for a 'fake' return address
in idle, to avoid stack underflow.
|
| 31720 |
15-Dec-1997 |
tegge |
Don't forward hardclock or statclock to stopped cpus. Disable forwarding
when a panic has occured.
|
| 31709 |
14-Dec-1997 |
dyson |
After one of my analysis passes to evaluate methods for SMP TLB mgmt, I
noticed some major enhancements available for UP situations. The number
of UP TLB flushes is decreased much more than significantly with these
changes. Since a TLB flush appears to cost minimally approx 80 cycles,
this is a "nice" enhancement, equiv to eliminating between 40 and 160
instructions per TLB flush.
Changes include making sure that kernel threads all use the same PTD,
and eliminate unneeded PTD switches at context switch time.
|
| 31689 |
12-Dec-1997 |
tegge |
Add needed #include.
Problem found by: Bruce Evans <bde@zeta.org.au>
|
| 31639 |
08-Dec-1997 |
fsmp |
The improvements to clock statistics by Tor Egge
Wrappered and enabled by the define BETTER_CLOCK (on by default in smpyests.h)
Reviewed by: smp@csn.net
Submitted by: Tor Egge <Tor.Egge@idi.ntnu.no>
|
| 31603 |
07-Dec-1997 |
yokota |
- Add support for the following mice to psm/moused/sysmouse:
MS IntelliMouse, Kensington Thinking Mouse, Genius NetScroll,
Genius NetMouse, Genius NetMouse Pro, ALPS GlidePoint, ASCII
MieMouse, Logitech MouseMan+, FirstMouse+
- The `psm' driver is made to recognize various models of PS/2 mice
and enable their extra features so that their additional buttons and
wheel/roller are recognized. The name of the detected model will be
printed at boot time.
- A set of new ioctl functions are added to the `psm', `mse' and
`sysmouse' drivers so that the userland program (such as the X server)
can query device information and change driver settings.
- The wheel/roller movement is handled as the `Z' axis movement by the
mouse drivers and the moused daemon. The Z axis movement may be mapped
to another axis movement or buttons.
- The mouse drivers support a new, standard mouse data format,
MOUSE_PROTO_SYSMOUSE format which can encode x, y, and x axis movement
and up to 10 buttons.
/sys/i386/include/mouse.h
- Added some fields to `mousestatus_t' to store Z axis movement
and flag bits.
- Added the field `model' to `mousehw_t' to store mouse model code.
Defined model codes.
- Extended `mousemode_t'.
- Added new protocols and some constants for them.
- Added new ioctl functions and structures.
- Removed obsolete ioctl definitions.
/sys/i386/include/console.h
- Added `dz' field to the structure `mouse_data' to pass Z axis movement
to `syscons/sysmouse'.
- Removed LEFT_BUTTON, MIDDLE_BUTTON and RIGHT_BUTTON. Use button bits
defined in `mouse.h' instead.
/sys/i386/isa/psm.c
- Added a set of functions to detect various mice which have additional
features (wheel and buttons) unavailable in the standard PS/2 mouse.
- Refined existing ioctl functions and added new ones. Most important
of all is MOUSE_SETLEVEL which manipulates the output level of the driver.
While the output level remains zero, the output from the `psm' driver is
in the standard PS/2 mouse format (three bytes long). When the level
is set to one, the `psm' driver will send data in the extended format.
At the level two the driver uses the format which is native to the
connected mouse is used. (Meaning that the output from the device is
passed to the caller as is, unmodified.) The `psm' driver will pass
such extended data format as is to the caller if the output level is
two, but emulates the standard format if the output level is zero.
- Added kernel configuration flags to set initial resolution
(PSM_CONFIG_RESOLUTION) and acceleration (PSM_CONFIG_ACCEL).
- Removed the compile options PSM_ACCEL, PSM_CHECKSYNC and PSM_EMULATION.
Acceleration ratio is now specified by the kernel configuration flags
stated above. Sync check logic is refined and now standard.
The sync check can be turned off by the new kernel configuration flags
PSM_CONFIG_NOCHECKSYNC (0x100). PSM_EMULATION has been of little use.
- Summer clean up :-) Removed unused code and obsolete comments.
/sys/i386/isa/mse.c
- Created mseioctl() to deal with ioctl functions MOUSE_XXXX.
Most importantly, the MOUSE_SETLEVEL ioctl will change the
output format from the 5 byte format to the new, extended format
so that the caller can take advantage of Z axis movement and additional
buttons.
- Use constants defined in `mouse.h' rather than magic numbers.
/sys/i386/isa/syscons.c
- Changed scioctl() to reflect the new `console.h' and some of the new
ioctls defined in `mouse.h'. Most importantly, the MOUSE_SETLEVEL
ioctl will change the `sysmouse' output format from the MouseSystems
5 byte format to the new, extended format so that the caller can
take advantage of Z axis movement and additional buttons.
- Added support for double/triple click actions of the left button and
single click action of the right button in the virtual console. The
left button double click will select a word under the mouse pointer.
The triple click will select a line and the single click of the right
button will extend the selected region to the current position of
the mouse pointer. This will make the cut/paste support more compatible
with xterm.
/sys/i386/isa/kbdio.h
- Added PSM_INTELLI_ID.
|
| 31321 |
20-Nov-1997 |
bde |
Moved some extern declarations to header files (unused ones to /dev/null).
|
| 31319 |
20-Nov-1997 |
bde |
Avoid passing some more `retval's.
|
| 31186 |
16-Nov-1997 |
ahasty |
Reviewed by: Amancio Hasty
Submitted by: Amancio Hasty <hasty@star-gate.com>
Added yuv12 support for mpeg encoding and Randall Hopper's fixed for Temporal
Decimation
|
| 31126 |
12-Nov-1997 |
jdp |
Expand the APMIO_GETINFO ioctl to return the estimated remaining
battery time. For backward compatibility with old binaries, I
assigned a new ioctl number for this call, and retained the old
one as APMIO_GETINFO_OLD. I also added eight words of padding and
a version field, so that future enhancements won't require jumping
through this hoop again.
|
| 31030 |
07-Nov-1997 |
tegge |
Use UPAGES when setting up private pages for SMP (which includes idle stack).
|
| 30979 |
06-Nov-1997 |
markm |
Add the IOCTL for Luigi's BT848 -> I2C bus driver.
|
| 30866 |
31-Oct-1997 |
markm |
Upgrade the sound sources to Amancio Hasty's latest-and-greatest.
This is based on Voxware 3.5, and corresponds to Amancio's `guspnp21'.
Bug reports to Amancio, please!
|
| 30813 |
28-Oct-1997 |
bde |
Removed unused #includes.
|
| 30805 |
28-Oct-1997 |
bde |
Don't include <machine/cputypes.h> or declare cputype/class interfaces
in <machine/cpu.h>. Moved the declarations to <machine/cputypes.h>.
Fixed style bugs in the moved code. Fixed everything that depended on
the nested include. Don't include <machine/cpu.h> (in the changed files)
unless something in it is used directly.
|
| 30789 |
27-Oct-1997 |
bde |
Moved declaration of etext from <machine/md_var.h> to <machine/cpu.h>
and fixed everything that dependended on it being declared in the old
place. It is used in "machine-independent" code in subr_prof.c.
Moved declaration of btext from subr_prof.c to <machine/cpu.h>. It
is machine-dependent.
|
| 30755 |
27-Oct-1997 |
jkh |
Bump MAXDSIZ to 512MB so that soft limits have a chance to actually
regulate this.
Reviewed by: dyson
|
| 30572 |
19-Oct-1997 |
yokota |
Rename MOUSE_GETINFO to MOUSE_GETHWINFO. The name collided with the one
in console.h.
Pointed out by bde.
|
| 30343 |
12-Oct-1997 |
peter |
Try and fix some style problems
|
| 30274 |
10-Oct-1997 |
peter |
Don't #include unneeded includes here. pcb_ext.h picks up lots of other
stuff with it.
|
| 30265 |
10-Oct-1997 |
peter |
Convert the VM86 option from a global option to an option only depended
on by the files that use it. Changing the VM86 option now only causes
a recompile of a dozen files or so rather than the entire kernel.
|
| 30193 |
07-Oct-1997 |
markm |
Latest round of patches from the author.
This driver includes the following patches submitted by:
1.0 Hideyuki Suzuki <hideyuki@sat.t.u-tokyo.ac.jp>
Japanese Cable support
2.0 Keith Sklower <sklower@CS.Berkeley.EDU>
Minor update to the BSDI section so it compiles cleanly on BSDI
3.0 Joao Carlos Mendes Luis <jonny@coppe.ufrj.br>
ioctl interface to select video format , NTSC, PAL, etc...
|
| 30136 |
06-Oct-1997 |
dyson |
It is possible that MB's with really broken bios's not set up more of
the mtrr registers. This just fills in more of the registers.
|
| 30112 |
05-Oct-1997 |
dyson |
Make sure that the memory type registers are the same for each CPU
in a P6 SMP system. Some MB bios'es don't set the registers up correctly
for the AP's. Additionally, set the memory between 0xa0000 and 0xbffff
as write combining.
|
| 30043 |
01-Oct-1997 |
sos |
Add a new keyboard mode K_CODE. Returns a single byte for each key
much like the scancode mode.
However the keys that (for no good reason) returns extension codes
etc, are translated into singlebyte codes.
Needed by libvgl. This makes life ALOT easier, also the XFree86
folks could use this.
|
| 29956 |
29-Sep-1997 |
peter |
oops, I seem to have forgotten to commit this. redirect _cam_imask to
cam_imask when compiling under elf.
|
| 29676 |
21-Sep-1997 |
gibbs |
ipl.h:
Add CAM software/hardware interrupt support.
si.h:
Update for changes in the callout interface.
|
| 29663 |
21-Sep-1997 |
peter |
Implement the parts needed for VM86 under SMP.
|
| 29655 |
21-Sep-1997 |
dyson |
Add support for more than 1 page of idle process stack on SMP systems.
|
| 29368 |
14-Sep-1997 |
peter |
Update select -> poll in drivers.
|
| 29330 |
13-Sep-1997 |
joerg |
Revert the logic behind my last change, and use a function called
`is_physical_memory()' now for the decision whether to dump some
region of memory or not.
Suggested by: davidg
|
| 29328 |
13-Sep-1997 |
peter |
Patch up some more undefined symbols when compiling under ELF.
|
| 29280 |
10-Sep-1997 |
joerg |
Do not ever try to coredump adapter memory regions.
PR: 4486
Submitted by: tegge@idi.ntnu.no (Tor Egge)
Implement a function is_adapter_memory() in order to determine what
should nto be dumped at all. Currently, only populated with the ``ISA
memory hole''. Adapter regions of other busses should be added.
|
| 29233 |
09-Sep-1997 |
markm |
Amancio's latest in the Brooktree driver.
This fixes the european frequency set, separates this further from the
Meteor driver and fixes bugs.
|
| 29215 |
08-Sep-1997 |
peter |
Add missing redirection for _inside_intr -> inside_intr
|
| 29214 |
07-Sep-1997 |
fsmp |
DISABLE LEVEL_3 lock pushdown, somethings seems to have broken!
|
| 29213 |
07-Sep-1997 |
fsmp |
General cleanup of the lock pushdown code. They are grouped and enabled
from machine/smptests.h:
#define PUSHDOWN_LEVEL_1
#define PUSHDOWN_LEVEL_2
#define PUSHDOWN_LEVEL_3
#define PUSHDOWN_LEVEL_4_NOT
|
| 29127 |
05-Sep-1997 |
peter |
Add redirection for new _clock_lock symbol
|
| 29098 |
04-Sep-1997 |
kato |
Always defines macros for PC-98 display.
|
| 29000 |
01-Sep-1997 |
fsmp |
General cleanup of the sub-system locking macros.
Eliminated the RECURSIVE_MPINTRLOCK.
clock.c and microtime use clock_lock.
sio.c and cy.c use com_lock.
Suggestions by: Bruce Evans <bde@zeta.org.au>
|
| 28999 |
01-Sep-1997 |
fsmp |
Cleanup.
|
| 28984 |
01-Sep-1997 |
bde |
Move closer to supporting VM86 under SMP.
LINT now compiles but doesn't link. Other link-time breakage for LINT
is now visible (SMP is incompatible with SIMPLELOCK_DEBUG).
Submitted by: jlemon
|
| 28973 |
31-Aug-1997 |
bde |
Put I*86_CPU options in opt_global.h and don't #include "opt_cpu.h"
centrally.
|
| 28951 |
31-Aug-1997 |
fsmp |
Debug version of simple_lock. This will store the CPU id of the
holding CPU along with the lock. When a CPU fails to get the lock
it compares its own id to the holder id. If they are the same it
panic()s, as simple locks are binary, and this would cause a deadlock.
Controlled by smptests.h: SL_DEBUG, ON by default.
Some minor cleanup.
|
| 28942 |
30-Aug-1997 |
peter |
Define some machine characteristics using symbol naming on conventions
in place in the other BSD's.
|
| 28932 |
30-Aug-1997 |
peter |
Update to include recently added names that are shared between the C and
asm parts of the kernel. This is to re-enable ELF compile support.
|
| 28921 |
30-Aug-1997 |
fsmp |
Another round of lock pushdown.
Add a simplelock to deal with disable_intr()/enable_intr() as used in UP kernel.
UP kernel expects that this is enough to guarantee exclusive access to
regions of code bracketed by these 2 functions.
Add a simplelock to bracket clock accesses in clock.c: clock_lock.
Help from: Bruce Evans <bde@zeta.org.au>
|
| 28918 |
30-Aug-1997 |
kato |
Move MACHINE_ARCH definition from <machine/param.h> to <machine/cpu.h>.
Submitted by: Bruce Evans <bde@zeta.org.au>
|
| 28906 |
29-Aug-1997 |
fsmp |
Introduce FAST_HI option, ON by default.
This options allows a CPU that is blocked spinning for the giant lock
to process FAST_INTR() ISRs, eg. siointr().
|
| 28889 |
29-Aug-1997 |
kato |
Fix typo in the comment introduced by me.
|
| 28885 |
29-Aug-1997 |
kato |
Added a sysctl arg, hw.machine_arch. The hw.machine_arch is "ibm-pc"
on IBM-PC box and is "pc-98" on NEC PC-98 box. Userland program can
distinguish architecture on which the program runs.
|
| 28872 |
28-Aug-1997 |
jlemon |
Remove the vm86 support as an LKM, and link it directly into the kernel
if 'options "VM86"' is in the config file. The LKM was really for
development, and has probably outlived its usefulness.
|
| 28861 |
28-Aug-1997 |
kato |
Moved include files which are independent of bs driver.
|
| 28809 |
26-Aug-1997 |
peter |
Correct some things I forgot about until it was too late with smp_active.
smp_active = 1 used to indicate that the system had frozen previously
started AP's, while smp_active = 0 was "AP's not yet started". I have split
this into smp_started (which is set when the AP's come online), and
smp_active is left for turning on/off AP scheduling.
|
| 28808 |
26-Aug-1997 |
peter |
Clean up the SMP AP bootstrap and eliminate the wretched idle procs.
- We now have enough per-cpu idle context, the real idle loop has been
revived (cpu's halt now with nothing to do).
- Some preliminary support for running some operations outside the
global lock (eg: zeroing "free but not yet zeroed pages") is present
but appears to cause problems. Off by default.
- the smp_active sysctl now behaves differently. It's merely a 'true/false'
option. Setting smp_active to zero causes the AP's to halt in the idle
loop and stop scheduling processes.
- bootstrap is a lot safer. Instead of sharing a statically compiled in
stack a number of times (which has caused lots of problems) and then
abandoning it, we use the idle context to boot the AP's directly. This
should help >2 cpu support since the bootlock stuff was in doubt.
- print physical apic id in traps.. helps identify private pages getting
out of sync. (You don't want to know how much hair I tore out with this!)
More cleanup to follow, this is more of a checkpoint than a
'finished' thing.
|
| 28743 |
25-Aug-1997 |
bde |
Removed a bogus comment.
|
| 28669 |
24-Aug-1997 |
fsmp |
A clean fix for the spl "deadlock before smp_active" problem.
Added a new variable, 'bsp_apic_ready', which is set as soon as the bootstrap
CPU has initialized its local APIC. Conditionalize the GENSPLR functions
to call ss_lock ONLY after bsp_apic_ready is TRUE; This should prevent
any problems with races between the time the 1st AP becomes ready and the
time smp_active is set.
|
| 28641 |
24-Aug-1997 |
fsmp |
The last of the encapsolation of cpl/spl/ipending things into a critical
region protected by the simplelock 'cpl_lock'.
Notes:
- this code is currently controlled on a section by section basis with
defines in machine/param.h. All sections are currently enabled.
- this code is not as clean as I would like, but that can wait till later.
- the "giant lock" still surrounds most instances of this "cpl region".
I still have to do the code that arbitrates setting cpl between the
top and bottom halves of the kernel.
- the possibility of deadlock exists, I am committing the code at this
point so as to exercise it and detect any such cases B4 the "giant lock"
is removed.
|
| 28496 |
21-Aug-1997 |
charnier |
Revert my previous commit about using CS_SECURE macro.
Requested by: Bruce.
|
| 28491 |
21-Aug-1997 |
fsmp |
Moved the COM_LOCK and COM_UNLOCK macros to machine/param.h.
|
| 28489 |
21-Aug-1997 |
fsmp |
Oops, this should have been in last commit.
Adds variable cil: current INTerrupt level. This is part of the new
MP-safe spl algorithm.
|
| 28487 |
21-Aug-1997 |
fsmp |
Made PEND_INTS default.
Made NEW_STRATEGY default.
Removed misc. old cruft.
Centralized simple locks into mp_machdep.c
Centralized simple lock macros into param.h
More cleanup in the direction of making splxx()/cpl MP-safe.
|
| 28460 |
20-Aug-1997 |
jlemon |
Add forward declaration for struct proc.
|
| 28442 |
20-Aug-1997 |
fsmp |
Preperation for moving cpl into critical region access.
Several new fine-grained locks.
New FAST_INTR() methods:
- separate simplelock for FAST_INTR, no more giant lock.
- FAST_INTR()s no longer checks ipending on way out of ISR.
sio made MP-safe (I hope).
|
| 28441 |
20-Aug-1997 |
fsmp |
Preperation for moving cpl into critical region access.
Several new fine-grained locks.
Control of new FAST_INTR() methods.
|
| 28359 |
18-Aug-1997 |
charnier |
Use CS_SECURE macro.
Reviewed by: John Dyson
|
| 28354 |
18-Aug-1997 |
fsmp |
Turn on the lockmanager by default for SMP.
Reviewed by: "John S. Dyson" <toor@dyson.iquest.net>
|
| 28352 |
18-Aug-1997 |
fsmp |
Removed volatile from arg to simple_lock & friends.
|
| 28270 |
16-Aug-1997 |
wollman |
Fix all areas of the system (or at least all those in LINT) to avoid storing
socket addresses in mbufs. (Socket buffers are the one exception.) A number
of kernel APIs needed to get fixed in order to make this happen. Also,
fix three protocol families which kept PCBs in mbufs to not malloc them
instead. Delete some old compatibility cruft while we're at it, and add
some new routines in the in_cksum family.
|
| 28231 |
15-Aug-1997 |
fsmp |
The promised "better fix" for "Trap 9 When Boot SMP" problem.
We now tsleep() in kthread_init() between start_init()
and prepare_usermode() while waiting for ALL the idle_loop()
processes to come online.
Debugged & tested by: "Thomas D. Dean" <tomdean@ix.netcom.com>
Reviewed by: David Greenman <dg@root.com>
|
| 28041 |
10-Aug-1997 |
fsmp |
Cheap fix for kern/4255.
If the problem is seen this fix suggests a compile-time work-around then panics.
|
| 28027 |
09-Aug-1997 |
fsmp |
Some fixes towards making "default configs" work again.
Still not fixed, no idea why.
Debug help from: "Thomas D. Dean" <tomdean@ix.netcom.com>
|
| 28009 |
09-Aug-1997 |
dyson |
A couple of missing doscmd header files. Messed up again. Now can
compile the kernel!!!
Submitted by: Jonathan Lemon <jlemon@americantv.com>
|
| 27993 |
09-Aug-1997 |
dyson |
VM86 kernel support.
Work done by BSDI, Jonathan Lemon <jlemon@americantv.com>,
Mike Smith <msmith@gsoft.com.au>, Sean Eric Fagan <sef@kithrup.com>,
and probably alot of others.
Submitted by: Jnathan Lemon <jlemon@americantv.com>
|
| 27990 |
08-Aug-1997 |
sos |
Yeah I'm back hacking syscons !!
Add support for MODEX 320x240x256color with "unchained" adressing, giving
access to all 256K on all VGA's, those with that much memory that is :)
Also make sysmouse use the right resolution in graphics modes.
|
| 27950 |
07-Aug-1997 |
dyson |
Fix the DDB breakpoint code when using the 4MB page support.
|
| 27902 |
05-Aug-1997 |
dyson |
Remove the PMAP_PVLIST conditionals in pmap.*, and another unneeded define.
|
| 27896 |
04-Aug-1997 |
fsmp |
pushed down "volatility" of simplelock to actual int inside the struct.
Submitted by: bde@zeta.org.a
|
| 27893 |
04-Aug-1997 |
fsmp |
Eliminate frequent silo overflows by restoring the TEST_LOPRIO code.
This code was eliminated when the PEND_INTS algorithm was added. But it was
discovered that PEND_INTS only worsen latency for FAST_INTR() routines,
which can't be marked pending.
Noticed & debugged by: dave adkins <adkin003@gold.tc.umn.edu>
|
| 27873 |
04-Aug-1997 |
msmith |
Nuke the nonexistend pad bytes from the end of the DMI header structure.
|
| 27822 |
01-Aug-1997 |
msmith |
Support for PC BIOS functions.
|
| 27816 |
01-Aug-1997 |
msmith |
New defines for the Wavelan (wl) driver.
Submitted by: Jim Binkley <jrb@cs.pdx.edu>
|
| 27808 |
31-Jul-1997 |
fsmp |
Fixed imen declaration.
Submitted by: Bruce Evans <bde@zeta.org.au>
|
| 27789 |
31-Jul-1997 |
phk |
Add support for booting in VESA 0x102 videomode. Corresponding patches to
syscons are being reviewed by sos.
|
| 27780 |
31-Jul-1997 |
fsmp |
Converted the TEST_LOPRIO code to default.
Created mplock functions that save/restore NO registers.
Minor cleanup.
|
| 27778 |
31-Jul-1997 |
fsmp |
Converted the TEST_LOPRIO code to default.
|
| 27728 |
28-Jul-1997 |
fsmp |
Modified the PEND_INTS algorithm to fix the ISA INT loss problem.
Noticed by: dave adkins <adkin003@gold.tc.umn.edu> and others.
|
| 27705 |
26-Jul-1997 |
fsmp |
Comment out PEND_INTS for now, it breaks ISA INTs.
Reported by: dave adkins <adkin003@gold.tc.umn.edu>
|
| 27697 |
26-Jul-1997 |
fsmp |
mpapic.c & mp_machdep:
- removed TEST_ALTTIMER.
- removed APIC_PIN0_TIMER.
- removed TIMER_ALL.
mplock.s:
- minor update of try_mplock for new algorithm where a CPU uses try_mplock
instead of get_mplock in the ISRs.
|
| 27695 |
26-Jul-1997 |
fsmp |
Removed "options SMP_TIMER_NC".
Removed TEST_ALTTIMER.
Removed APIC_PIN0_TIMER.
Removed TIMER_ALL.
|
| 27663 |
24-Jul-1997 |
fsmp |
param.h:
Macros to convert the Lite2 lock manager primitives to the names used
in the kernel proper. This allows us to hide them from the lock
manager till they can be turned on.
smp.h:
declarations for the new simplelock functions.
|
| 27634 |
23-Jul-1997 |
fsmp |
New simple_lock code in asm:
- s_lock_init()
- s_lock()
- s_lock_try()
- s_unlock()
Created lock for IO APIC and apic_imen (SMP version of imen)
- imen_lock
Code to use imen_lock for access from apic_ipl.s and apic_vector.s.
Moved this code *outside* of mp_lock.
It seems to work!!!
|
| 27633 |
23-Jul-1997 |
fsmp |
Forced 32bit alignment of struct simple_lock in param.h.
Added declarations of new simple_lock data and functions to smp.h.
|
| 27619 |
23-Jul-1997 |
fsmp |
Coded simple_lock and friends in asm.
|
| 27617 |
22-Jul-1997 |
fsmp |
Added a missing semicolon, compile failed when I turned on simple_lock().
Evidently this has never been compiled before, NOT a good sign...
|
| 27616 |
22-Jul-1997 |
fsmp |
Last commit didn't take, operator error???
|
| 27591 |
21-Jul-1997 |
fsmp |
Enabled the FPU emilaute bit define: CR0_EM
Reviewed by: Bruce Evans <bde@zeta.org.au>
|
| 27563 |
20-Jul-1997 |
fsmp |
Developed a new strategy for handling the 8254/8259/APIC issue.
|
| 27562 |
20-Jul-1997 |
fsmp |
Developed a new strategy for handling the 8254/8259/APIC issue.
Enabled (by default) with "#define NEW_STRATEGY".
|
| 27561 |
20-Jul-1997 |
fsmp |
Minor cleanup.
Pass string arg to apic_dump.
Moved bootverbose printing of SMP enabled INTs from clock.c to autoconf.c
|
| 27559 |
20-Jul-1997 |
fsmp |
Pass string arg to apic_dump.
|
| 27542 |
20-Jul-1997 |
bde |
Removed unused #includes and a stale forward declaration.
|
| 27540 |
20-Jul-1997 |
bde |
Hide definitions that depend on the APIC_IO option from LKMs so that LKMs
break properly if they use these definitions.
Use '#ifdef notyet' instead of '#if 0' to hide temporarily misplaced
declarations.
|
| 27539 |
20-Jul-1997 |
bde |
Fixed pedantic ANSI C errors:
- don't put a comma after the last element in enum declarations.
- don't declare static objects as extern.
|
| 27535 |
20-Jul-1997 |
bde |
Removed unused #includes.
|
| 27523 |
19-Jul-1997 |
fsmp |
Added code to support #define APIC_PIN0_TIMER.
This code ALWAYS runs the 8254 timer thru the 8259 ICU.
It depricates the usage of "options SMP_TIMER_NC" in the config file.
|
| 27521 |
19-Jul-1997 |
fsmp |
Added #define APIC_PIN0_TIMER.
This define enables the code to ALWAYS run the 8254 timer thru the 8259 ICU.
It is ON by default.
It depricates the usage of "options SMP_TIMER_NC" in the config file.
|
| 27519 |
19-Jul-1997 |
fsmp |
Increased NIDT to 256 for case of SMP or APIC_IO.
|
| 27517 |
18-Jul-1997 |
fsmp |
Split TEST_CPUSTOP code into CPUSTOP_ON_DDBBREAK and mainline code.
|
| 27489 |
18-Jul-1997 |
fsmp |
printf cleanup.
|
| 27484 |
17-Jul-1997 |
dyson |
Hopefully fix a few problems that could cause hangs in SMP mode.
1) Make sure that the region mapped by a 4MB page is
properly aligned.
2) Don't turn on the PG_G flag in locore for SMP. I plan
to do that later in startup anyway.
3) Make sure the 2nd processor has PSE enabled, so that 4MB
pages don't hose it.
We don't use PG_G yet on SMP -- there is work to be done to make that
work correctly. It isn't that important anyway...
|
| 27464 |
17-Jul-1997 |
dyson |
Add support for 4MB pages. This includes the .text, .data, .data parts
of the kernel, and also most of the dynamic parts of the kernel. Additionally,
4MB pages will be allocated for display buffers as appropriate (only.)
The 4MB support for SMP isn't complete, but doesn't interfere with operation
either.
|
| 27463 |
17-Jul-1997 |
fsmp |
Turned OFF DEBUG_CPUSTOP as the default. This was necessary as kernels without
DDB failed to link for lack of db_printf().
|
| 27410 |
15-Jul-1997 |
fsmp |
Removed a stale "FIXME:".
|
| 27408 |
15-Jul-1997 |
fsmp |
Cleanup.
|
| 27405 |
15-Jul-1997 |
fsmp |
New defines to eliminate "magic numbers" in various places.
|
| 27353 |
13-Jul-1997 |
fsmp |
new code to control other CPUs: stop_cpus()/restart_cpus()/_Xstopcpu
this code is controlled by smptests.h: TEST_CPUSTOP, OFF by default
new code for handling mixed-mode 8259/APIC programming without 'ExtInt'
this code is controlled by smptests.h: TEST_ALTTIMER, ON by default
|
| 27351 |
13-Jul-1997 |
fsmp |
Many new test defines, including:
- TEST_CPUSTOP adds stop_cpus()/restart_cpus(), OFF by default
- TEST_ALTTIMER new method for attaching 8259 PIC to APIC
this method avoids 'ExtInt' programming, ON by default
- TIMER_ALL sends 8259/8254 timer INTs to all CPUs, ON by default
- ASMPOSTCODExxx code to display bytes to POST hardware, OFF by default
|
| 27289 |
08-Jul-1997 |
fsmp |
General cleanup of APIC code.
stop_cpus()/restart_cpus() STILL not working!
|
| 27285 |
08-Jul-1997 |
fsmp |
General cleanup of APIC code.
stop_cpus/restart_cpus STILL not working!
|
| 27255 |
07-Jul-1997 |
fsmp |
stop_cpus(), currently BROKEN! (turned off in smptests.h by default).
restart_cpus(), currently BROKEN! (turned off in smptests.h by default).
|
| 27252 |
06-Jul-1997 |
fsmp |
Additional debugging functions and macros.
"spurious INTerrupt" support.
|
| 27005 |
27-Jun-1997 |
fsmp |
Added POST code output to various points of the startup code.
General cleanup.
New functions to stop/start CPUs via IPIs:
- int stop_cpus( u_int map );
- int restart_cpus( u_int map );
Turned off by default, enabled via smptests.h:TEST_CPUSTOP.
Current version has a BUG, perhaps a deadlock?
|
| 27002 |
27-Jun-1997 |
fsmp |
Preliminaries for stop_cpus()/restart_cpus().
Both are turned off by default.
Added macro for displaying POST codes from kernel.
|
| 27001 |
27-Jun-1997 |
fsmp |
Program lint1 to handle NMIs.
Till now NMIs would be ignored. Now an NMI is caught by the BSP.
APs still ignore NMI, am working on code to allow a CPU to stop other CPUs
via an IPI.
|
| 27000 |
27-Jun-1997 |
fsmp |
Added fields to the LVT1/2 group.
|
| 26950 |
25-Jun-1997 |
fsmp |
Merged/renamed functions:
- get_isa_apic_mask() -> isa_apic_mask()
- get_isa_apic_irq() && get_eisa_apic_irq() -> isa_apic_pin()
- get_pci_apic_irq() -> pci_apic_pin()
|
| 26948 |
25-Jun-1997 |
fsmp |
Modified to declare merged/renamed functions:
- get_isa_apic_mask() -> isa_apic_mask()
- get_isa_apic_irq() && get_eisa_apic_irq() -> isa_apic_pin()
- get_pci_apic_irq() -> pci_apic_pin()
|
| 26945 |
25-Jun-1997 |
tegge |
Allow the kernel configuration file to override the amount of memory
available to the kernel (VM_KMEM_SIZE). The default (32 MB) is too low
when having 512 MB or more physical memory in a server environment. This is
relevant on systems where "panic: kmem_malloc: kmem_map too small" is a
problem.
|
| 26896 |
24-Jun-1997 |
tegge |
Ensure that the boot CPU honours write protection in kernel mode.
This fixes one of the problems noted in PR kern/3688.
|
| 26886 |
24-Jun-1997 |
fsmp |
Fix calculation of initial mplock value.
We now use LOGICAL, not PHYSICAL, IDs to calculate the mplock.
|
| 26882 |
24-Jun-1997 |
fsmp |
Fixed breakage for "default" configurations in mptable_pass1().
|
| 26812 |
22-Jun-1997 |
peter |
Preliminary support for per-cpu data pages.
This eliminates a lot of #ifdef SMP type code. Things like _curproc reside
in a data page that is unique on each cpu, eliminating the expensive macros
like: #define curproc (SMPcurproc[cpunumber()])
There are some unresolved bootstrap and address space sharing issues at
present, but Steve is waiting on this for other work. There is still some
strictly temporary code present that isn't exactly pretty.
This is part of a larger change that has run into some bumps, this part is
standalone so it should be safe. The temporary code goes away when the
full idle cpu support is finished.
Reviewed by: fsmp, dyson
|
| 26771 |
21-Jun-1997 |
bde |
Fixed va_arg() to work for small args (as in stdarg.h).
|
| 26763 |
21-Jun-1997 |
bde |
Don't attempt to generate errors for unpromoted types in va_arg(),
since it is impossible to distinguish unpromoted types from small
(struct) types. Renamed __va_promote() to __va_size() since it is
related to sizes of args on the stack and not to promotion.
PR: 3884
Submitted by: mostly by arnej@math.ntnu.no (Arne Henrik Juul)
Obtained from: name of__va_size and some parentheses fixes from NetBSD
|
| 26657 |
15-Jun-1997 |
wollman |
When APM is configured, turn off the power when halting for good.
|
| 26494 |
07-Jun-1997 |
bde |
Preserve %fs and %gs across context switches. This has a relatively low
cost since it is only done in cpu_switch(), not for every exception.
The extra state is kept in the pcb, and handled much like the npx state,
with similar deficiencies (the state is not preserved across signal
handlers, and error handling loses state).
|
| 26491 |
07-Jun-1997 |
bde |
Removed #include of <i386/isa/isa_device.h>. inthand2_t is declared in a
better place now.
|
| 26490 |
07-Jun-1997 |
bde |
Updated comments.
|
| 26379 |
02-Jun-1997 |
dfr |
Change isa_device.h to intr_machdep.h
|
| 26306 |
31-May-1997 |
peter |
move spl.h to ipl.h, minus the inline spl macros. The inline spl
implementation is now in isa/ipl_funcs.c (at least for the time being),
leaving the definitions of the SWI_* and cpl/idelayed/ipending.
|
| 26305 |
31-May-1997 |
peter |
remove #include of <machine/spl.h> - they are externed now
Reviewed by: bde
|
| 26304 |
31-May-1997 |
peter |
move intrhand2_t from isa_device.h to machine/types.h - it's used far more
than in the isa dependent code.
create intrmask_t in machine/types.h (replaces "intrmask" typedef from
sys/interrupt.h)
Reviewed by: bde
|
| 26294 |
31-May-1997 |
fsmp |
Modified code in direction of supporting MULTIPLE_IOAPICS.
- removed set_io_apic_mask() & clr_io_apic(_mask)
- moved read_io_apic_maskc24() to i386/mpapic.c, disabled it, currently unused.
|
| 26270 |
29-May-1997 |
fsmp |
Code such as apic_base[APIC_ID] converted to lapic__id
Changes to pmap.c for lapic_t lapic && ioapic_t ioapic pointers,
currently equal to apic_base && io_apic_base, will stand alone with the
private page mapping.
|
| 26269 |
29-May-1997 |
fsmp |
apic.h now has structure definitions for both the local APIC and io APIC.
apic.h has defines like:
#define lapic__id lapic->id
Once private pages and "known virtual addr" mapping of the APICs is
ready all 'lapic__XXX' will be changed to 'lapic.XXX', and the defines
will be removed.
Changes to smp.h for lapic_t lapic && ioapic_t ioapic pointers,
currently equal to apic_base && io_apic_base, will stand alone with the
private page mapping.
|
| 26266 |
29-May-1997 |
peter |
minor style police (recent divergence from KNF code)
|
| 26252 |
28-May-1997 |
fsmp |
Add declaration of mp_probe().
This is now called directly from machdep.c.
|
| 26203 |
27-May-1997 |
fsmp |
Nuke the printing of the unredirect message unless bootverbose.
|
| 26159 |
26-May-1997 |
se |
Completely replace the PCI bus driver code to make it better reflect
reality. There will be a new call interface, but for now the file
pci_compat.c (which is to be deleted, after all drivers are converted)
provides an emulation of the old PCI bus driver functions. The only
change that might be visible to drivers is, that the type pcici_t
(which had been meant to be just a handle, whose exact definition
should not be relied on), has been converted into a pcicfgregs* .
The Tekram AMD SCSI driver bogusly relied on the definition of pcici_t
and has been converted to just call the PCI drivers functions to access
configuration space register, instead of inventing its own ...
This code is by no means complete, but assumed to be fully operational,
and brings the official code base more in line with my development code.
A new generic device descriptor data type has to be agreed on. The PCI
code will then use that data type to provide new functionality:
1) userconfig support
2) "wired" PCI devices
3) conflicts checking against ISA/EISA
4) maps will depend on the command register enable bits
5) PCI to Anything bridges can be defined as devices,
and are probed like any "standard" PCI device.
The following features are currently missing, but will be added back,
soon:
1) unknown device probe message
2) suppression of "mirrored" devices caused by ancient, broken chip-sets
This code relies on generic shared interrupt support just commited to
kern_intr.c (plus the modifications of isa.c and isa_device.h).
|
| 26155 |
26-May-1997 |
fsmp |
Added a test called 'LATE_START'.
This is now the default, it delays most of the MP startup to the function
machdep.c:cpu_startup(). It should be possible to move the 2 functions
found there (mp_start() & mp_announce()) even further down the path once
we know exactly where that should be...
Help from: Peter Wemm <peter@spinner.dialix.com.au>
|
| 26130 |
25-May-1997 |
fsmp |
Removed global hwisrs, replacing it with vec (formerly static to icu.s).
|
| 26108 |
25-May-1997 |
fsmp |
Broke up parse_mp_table() into 2 passes:
- The 1st (preparse_mp_table()) counts the number of cpus, busses, etc. and
records the LOCAL and IO APIC addresses.
- The 2nd pass (parse_mp_table()) does the actual parsing of info and recording
into the incore MP table.
This will allow us to defer the 2nd pass untill malloc() & private pages
are available (but thats for another day!).
|
| 26107 |
25-May-1997 |
fsmp |
Minor cleanup.
Comment about expanded use of NAPICIDS.
Change default NINTR from 64 to 48.
|
| 26101 |
24-May-1997 |
fsmp |
Now that panic() is properly printing messages for early SMP panics all
the 'printf("..."); panic("\n")' sections are returned to 'panic("...")'.
|
| 26019 |
22-May-1997 |
fsmp |
Convert all:
panic( "xxxxx\n" );
to:
printf( "xxxxx\n" );
panic( "\n" );
For some as yet undetermined reason the argument to panic() is often NOT
printed, and the system sometimes hangs before reaching the panic printout.
So we hopefully at least print some useful info before the hang, as oppossed to
leaving the user clueless as to what has happened.
|
| 26015 |
22-May-1997 |
fsmp |
Make the default for NINTR really large (ie 64).
We just ran across one with 38+ entries.
|
| 26003 |
22-May-1997 |
msmith |
Add 'wl' Wavelan driver.
Obtained from: Jim Binkley <jrb@cs.pdx.edu>
|
| 25984 |
21-May-1997 |
jdp |
Fill out the ELF header files to make them more or less complete.
Fix a macro name that was misspelled both in brandelf.c and
imgact_elf.h.
|
| 25983 |
21-May-1997 |
jdp |
Add new C global names also referenced from assembly language.
These mostly came from the addition of SMP support.
|
| 25982 |
21-May-1997 |
jdp |
Make setbits() SMP-safe. Eliminate the SETBITS() macro, and replace
all uses of it with the equivalent calls to setbits().
This change incidentally eliminates a problem building ELF kernels
that was caused by SETBITS.
Reviewed by: fsmp, peter
Submitted by: bde
|
| 25577 |
08-May-1997 |
peter |
Add _BSD_CLOCKID_T_ and _BSD_TIMER_T_ for posix clock/timer support
Obtained from: NetBSD
|
| 25559 |
07-May-1997 |
fsmp |
fix bug in get_isa_apic_mask() where EISA bus was ignored.
Submitted by: Peter Wemm <peter@spinner.DIALix.COM>
|
| 25549 |
07-May-1997 |
peter |
Convert md_regs from an int[] to a struct trapframe *. It simplifies
some code.
|
| 25548 |
07-May-1997 |
peter |
remove #include "opt_smp.h"
remove declarations for the SMPcurproc[NCPU] etc arrays. There was no
need to mention NCPU there, and they've been moved to their normal home.
|
| 25547 |
07-May-1997 |
peter |
remove #include "opt_smp.h" and <machine/smp.h>. Slightly elaborate on
a comment.
|
| 25546 |
07-May-1997 |
peter |
remove #include "opt_smp.h"
|
| 25545 |
07-May-1997 |
peter |
remove #include opt_smp.h
declare SMPcurpcb[] next to #define and uniprocessor counterpart
|
| 25517 |
06-May-1997 |
fsmp |
Force user to config SMP kernel with "options APIC_IO".
Reviewed by: Peter Wemm <peter@spinner.DIALix.COM>
|
| 25499 |
05-May-1997 |
fsmp |
Code to handle SMP/APIC_IO mapping of ISA INTs to APIC pins above IRQ15.
- doesn't break my system.
- NOT yet verified on the affected motherboard.
Submitted by: "John S. Dyson" <toor@dyson.iquest.net>
|
| 25485 |
05-May-1997 |
peter |
correct the order of the variables
use #ifdef where possible instead of #if defined
Submitted by: the KNF police, ie: bde :-)
|
| 25457 |
04-May-1997 |
peter |
Don't remove i586_ctr_freq from scope, leave it defined as zero. This
simplifies some assumptions and stops some code compile problems.
This should fix the compile hiccup in PR#3491, but smp kernel profiling
isn't likely to be fixed by this.
|
| 25421 |
03-May-1997 |
fsmp |
added declaration for get_isa_apic_mask().
Submitted by: "John S. Dyson" <toor@dyson.iquest.net>
|
| 25419 |
03-May-1997 |
fsmp |
new function to turn an APIC pin# into an INT mask.
added missing APIC_IO define.
Submitted by: "John S. Dyson" <toor@dyson.iquest.net>
|
| 25362 |
01-May-1997 |
fsmp |
cleaned up FAST_IPI code.
- one-liners all become inline.
- multi-liners become functions.
- FAST_IPI defines go away.
re-worked APICIPI_BANDAID code.
- now refered to as DETECT_DEADLOCK.
- on by default.
|
| 25361 |
01-May-1997 |
fsmp |
fixed spelling error.
Submitted by: Bruce Albrecht <bruce@zuhause.mn.org>
|
| 25328 |
01-May-1997 |
fsmp |
1.15 4/18/97 John-Mark Gurney <gurney_j@resnet.uoregon.edu>
Added [SR]RGBMASKs ioctl for byte swapping.
1.16 4/20/97 Randall Hopper <rhh@ct.picker.com>
Generalized RGBMASK ioctls for general pixel
format setting [SG]ACTPIXFMT, and added query API
to return driver-supported pix fmts GSUPPIXFMT.
1.17 4/21/97 hasty@rah.star-gate.com
Clipping support added.
1.18 4/23/97 Clean up after failed CAP_SINGLEs where bt
interrupt isn't delivered, and fixed fixing
CAP_SINGLEs that for ODD_ONLY fields.
Submitted by: individuals in above log messages.
|
| 25320 |
30-Apr-1997 |
fsmp |
changed expect_lock() to try_lock(), the real name used in mplock.s
|
| 25292 |
29-Apr-1997 |
fsmp |
Enabled 'FIX_MP_TABLE_WORKS' code.
This code re-numbers PCI busses in the MP table to match PCI semantics
when the MP BIOS fails to do it properly.
Reviewed by: Peter Wemm <peter@spinner.DIALix.COM>
|
| 25291 |
29-Apr-1997 |
peter |
Use a common numbering of the tty and net software interrupt levels
between the SMP and non-SMP case. It simplifies the #ifdef's, since
NHWI changes (at least for the moment) when APIC's are involved.
|
| 25290 |
29-Apr-1997 |
peter |
Remove stale comment, as suggested by Bruce.
|
| 25217 |
28-Apr-1997 |
fsmp |
removed TEST_CPUHITS code.
|
| 25216 |
28-Apr-1997 |
fsmp |
removed all the TEST_UPPERPRIO crud.
|
| 25215 |
28-Apr-1997 |
fsmp |
remove all the SMP_INVLTLB defines, making the code default for APIC_IO.
Reviewed by: informal discussion with Peter Wemm <peter@spinner.DIALix.COM>
|
| 25204 |
27-Apr-1997 |
fsmp |
informal discussion between Bruce Evans <bde@zeta.org.au>,
Peter Wemm <peter@spinner.DIALix.COM>, Steve Passe <smp@csn.net>
removed all the IPI_INTS code.
made the XFAST_IPI32 code default, renaming Xfastipi32 to Xinvltlb.
|
| 25178 |
26-Apr-1997 |
peter |
Try and make these usermode safe, Steve beat me in finding these..
|
| 25164 |
26-Apr-1997 |
peter |
Man the liferafts! Here comes the long awaited SMP -> -current merge!
There are various options documented in i386/conf/LINT, there is more to
come over the next few days.
The kernel should run pretty much "as before" without the options to
activate SMP mode.
There are a handful of known "loose ends" that need to be fixed, but
have been put off since the SMP kernel is in a moderately good condition
at the moment.
This commit is the result of the tinkering and testing over the last 14
months by many people. A special thanks to Steve Passe for implementing
the APIC code!
|
| 25159 |
26-Apr-1997 |
kato |
Add new cpu type, CPU_CY486DX, which shows Cyrix 486S/DX series CPUs,
and initialization routine for those CPUs.
Tested by: Bob Bishop <rb@gid.co.uk>
|
| 25111 |
23-Apr-1997 |
bde |
Fixed longstanding profiling bug. The frame pointer wasn't set up
for syscalls, so one frame was lost in backtraces from syscalls.
This is handled better in the kernel by using a different mcount
entry point for profiling before the frame pointer is set up.
Expand RCSID().
Use .p2align instead of the ambiguous .align.
Added idempotency ifdef.
Removed unused macros ALTENTRY(), ALTASENTRY(), ASENTRY(), _MID_ENTRY.
Cleaned up formatting.
Reviewed by: jdp reviewed an old version
Obtained from: parts from NetBSD
|
| 25083 |
22-Apr-1997 |
jdp |
Make the necessary changes so that an ELF kernel can be built. I
have successfully built, booted, and run a number of different ELF
kernel configurations, including GENERIC. LINT also builds and
links cleanly, though I have not tried to boot it.
The impact on developers is virtually nil, except for two things.
All linker sets that might possibly be present in the kernel must be
listed in "sys/i386/i386/setdefs.h". And all C symbols that are
also referenced from assembly language code must be listed in
"sys/i386/include/asnames.h". It so happens that failure to do
these things will have no impact on the a.out kernel. But it will
break the build of the ELF kernel.
The ELF bootloader works, but it is not ready to commit quite yet.
|
| 25041 |
20-Apr-1997 |
bde |
Fixed linting of and compilation of the gcc byte-swapping macros
properly. Simply don't use the gcc macros if we're not gcc, and
declare prototypes for the byte-swapping functions in case the
macro versions are not used. The previous fix was wrong and broke
libpcap, which abuses -Dlint.
Don't pollute the namespace if _POSIX_SOURCE is defined. This is
broken - it makes almost everything in <machine/endian.h> inaccessible
if _POSIX_SOURCE is defined, yet <machine/endian.h> is not a POSIX
header. Other systems don't do it any better.
Removed always-false `BYTE_ORDER == BIG_ENDIAN' ifdef.
Obtained from: partly from Lite(2?) and NetBSD
|
| 24965 |
15-Apr-1997 |
bde |
Only do indirections in ENTRY() if _ARCH_INDIRECT is defined.
|
| 24696 |
07-Apr-1997 |
peter |
Use UPAGES_HOLE instead of UPAGES in case it's changed some time.
Rename the PT* index KSTK* #defines to UMAX*, since we don't have a kernel
stack there any more..
These are used to calculate VM_MAXUSER_ADDRESS and USRSTACK, and really
do not want to be changed with UPAGES since BSD/OS 2.x binary compatability
depends on it.
|
| 24695 |
07-Apr-1997 |
peter |
Define UPAGES_HOLE at 2 (same as current UPAGES) in case UPAGES changes
later. This is used to calculate the top of user address space.
|
| 24691 |
07-Apr-1997 |
peter |
The biggie: Get rid of the UPAGES from the top of the per-process address
space. (!)
Have each process use the kernel stack and pcb in the kvm space. Since
the stacks are at a different address, we cannot copy the stack at fork()
and allow the child to return up through the function call tree to return
to user mode - create a new execution context and have the new process
begin executing from cpu_switch() and go to user mode directly.
In theory this should speed up fork a bit.
Context switch the tss_esp0 pointer in the common tss. This is a lot
simpler since than swithching the gdt[GPROC0_SEL].sd.sd_base pointer
to each process's tss since the esp0 pointer is a 32 bit pointer, and the
sd_base setting is split into three different bit sections at non-aligned
boundaries and requires a lot of twiddling to reset.
The 8K of memory at the top of the process space is now empty, and unmapped
(and unmappable, it's higher than VM_MAXUSER_ADDRESS).
Simplity the pmap code to manage process contexts, we no longer have to
double map the UPAGES, this simplifies and should measuably speed up fork().
The following parts came from John Dyson:
Set PG_G on the UPAGES that are now in kernel context, and invalidate
them when swapping them out.
Move the upages object (upobj) from the vmspace to the proc structure.
Now that the UPAGES (pcb and kernel stack) are out of user space, make
rfork(..RFMEM..) do what was intended by sharing the vmspace
entirely via reference counting rather than simply inheriting the mappings.
|
| 24690 |
07-Apr-1997 |
peter |
No longer use an i386tss as the basis of our pcb - it wasn't particularly
convenient and makes life difficult for my next commit. We still need
an i386tss to point to for the tss slot in the gdt, so we use a common
tss shared between all processes.
Note that this is going to break debugging until this series of commits
is finished. core dumps will change again too. :-( we really need
a more modern core dump format that doesn't depend on the pcb/upages.
This change makes VM86 mode harder, but the following commits will remove
a lot of constraints for the VM86 system, including the possibility of
extending the pcb for an IO port map etc.
Obtained from: bde
|
| 24528 |
02-Apr-1997 |
fsmp |
PAL support: magic numbers moved into format_params structure.
Revised AFC interface.
Fixed DMA_PROG_ALLOC size misdefinition.
Submitted by: richard@cogsci.ed.ac.uk (Richard Tobin)
|
| 24372 |
29-Mar-1997 |
phk |
Sanitize APM a bit. Convert various #ifdef to id_flags instead.
You may want to add "flags 0x31" to apm0 if you have a lousy
implementation. Read LINT.
|
| 24344 |
28-Mar-1997 |
bde |
Backed out rev.1.5. if %cs is bad, %eip may be bad, but this is no longer
fatal.
|
| 24244 |
25-Mar-1997 |
fsmp |
added support for EEProms writing/reading.
|
| 24202 |
24-Mar-1997 |
bde |
Don't default to (wrong) SCO definitions for _IOR() etc. if <sys/ioctl.h>
doesn't happen to be included before this header.
This header was missed in previous cleanups because it didn't include
<sys/ioctl.h> or <sys/ioccom.h>. Clean it now:
- #include <sys/types.h> since it is necessary to make the header self-
sufficient (there are a couple of u_char's).
- uniformized idempotency ifdef. Copied the style in the 4.4Lite
ioctl headers.
|
| 24112 |
22-Mar-1997 |
kato |
Improved CPU identification and initialization routines. This
supports All Cyrix CPUs, IBM Blue Lightning CPU and NexGen (now AMD)
Nx586 CPU, and initialize special registers of Cyrix CPU and msr of
IBM Blue Lightning CPU.
If revision of Cyrix 6x86 CPU < 2.7, CPU cache is enabled in
write-through mode. This can be disabled by kernel configuration
options.
Reviewed by: Bruce Evans <bde@freebsd.org> and
Jordan K. Hubbard <jkh@freebsd.org>
|
| 24086 |
21-Mar-1997 |
fsmp |
Submitted by: Michael Petry <petry@netwolf.NetMasters.com>
Michael submitted code to activate the audio muxes.
fsmp:
extended those changes for different boards.
auto-detection of board types.
auto-detection of tuner types.
auto-detection of stereo option
|
| 24045 |
19-Mar-1997 |
fsmp |
additions for table-driven frequency calculation.
addition of colorbar ioctl.
|
| 23954 |
17-Mar-1997 |
nate |
Don't try to lint the gcc extension byte-swapping macros.
Submitted by: Eivind Eklund <eivind@dimaga.com>
|
| 23936 |
16-Mar-1997 |
fsmp |
patches for bt848 specific hue/bright/contrast/satu/satv.
|
| 23599 |
10-Mar-1997 |
markm |
Initial import of the Brooktree PCI-TV drivers. I have not tested
these, they may not even compile. I am importing them on behalf
of the submitters.
Submitted by: amancio, smp
|
| 23580 |
09-Mar-1997 |
kato |
Added PC-98 specific function to get battery status.
Submitted by: URATA Shuichiro <s-urata@nmit.tmg.nec.co.jp>
|
| 23576 |
09-Mar-1997 |
bde |
Moved userland assembler macros from <machine/asmacros.h> to
<machine/asm.h>.
|
| 23571 |
09-Mar-1997 |
bde |
Cloned src/lib/libc/i386/DEFS.h to create <machine/asm.h> for the i386.
The former file was too hard to get at from other parts of the src tree
and will go away.
|
| 23184 |
28-Feb-1997 |
bde |
Fixed the gcc ellipsis change to work with gcc-1.x.
|
| 22975 |
22-Feb-1997 |
peter |
Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.
|
| 22827 |
17-Feb-1997 |
bde |
Replaced START_ENTRY by _START_ENTRY. -current hasn't got my cleanup
of DEFS.h which renamed it.
|
| 22808 |
16-Feb-1997 |
bde |
Select between the generic math functions and the i387-specific ones
at runtime.
etc/make.conf:
Nuked HAVE_FPU option.
lib/msun/Makefile:
Always build the i387 objects. Copy the i387 source files at build
time so that the i387 objects have different names. This is simpler
than renaming the files in the cvs repository or repeating half of
bsd.lib.mk to add explicit rules.
lib/msun/src/*.c:
Renamed all functions that have an i387-specific version by adding
`__generic_' to their names.
lib/msun/src/get_hw_float.c:
New file for getting machdep.hw_float from the kernel.
sys/i386/include/asmacros.h:
Abuse the ENTRY() macro to generate jump vectors and associated code.
This works much like PIC PLT dynamic initialization. The PIC case is
messy. The old i387 entry points are renamed. Renaming is easier
here because the names are given by macro expansions.
|
| 22639 |
13-Feb-1997 |
bde |
Moved definition of FUNCTION_ALIGNMENT to a machine-dependent place.
Changed it from 4 to 16 for i386's. It can be anything for i386's,
but compiler options limit it to a power of 2, and assembler and
linker deficiencies limit it to a small power of 2 (<= 16).
We use 16 in the kernel to get smaller tables (see Makefile.i386 and
<machine/asmacros.h>). We still use the default of 4 in user mode.
Use HISTCOUNTER instead of (*kcount) in the definition of KCOUNT()
for consistency with other macros.
|
| 22636 |
13-Feb-1997 |
bde |
Align text to 16-byte boundaries if profiling is enabled. This will
allow a fourfold reduction in the size of the profiling buffers. This
goes with rev.1.91 of Makefile.i386 which does the same thing for C
functions.
|
| 22580 |
12-Feb-1997 |
swallace |
Bug fix for SNDCTL_DSP_GETOSPACE ioctl. It would report 0 bytes
available in buffer when buffer was completely empty.
It now correctly reports the total buffer space available.
Reviewed by: jkh, davidg
Obtained from: Linux 1.3.20's sound driver code
|
| 22521 |
10-Feb-1997 |
dyson |
This is the kernel Lite/2 commit. There are some requisite userland
changes, so don't expect to be able to run the kernel as-is (very well)
without the appropriate Lite/2 userland changes.
The system boots and can mount UFS filesystems.
Untested: ext2fs, msdosfs, NFS
Known problems: Incorrect Berkeley ID strings in some files.
Mount_std mounts will not work until the getfsent
library routine is changed.
Reviewed by: various people
Submitted by: Jeffery Hsu <hsu@freebsd.org>
|
| 22415 |
07-Feb-1997 |
phk |
I have no idea what this is all about, but it works and Bruce hasn't
complained so it cannot be entirely bad :-)
I include the email that probably explains it for people who already know:
> >Compiling with -O3 inlines functions. However the function that is being
> >inlined in makeinfo.c (add_word_args()) is a vararg function and must not be
> >inlined.
> >
> >The code in question is K&R style, and AFIK, there is no way for the compiler
> >to determine that the function uses vararg. Either change the code to use
> >prototypes, or use stdarg, or add a directive to prevent inlining.
>
> Not declaring a varargs function as varargs before it is used gives
> undefined behaviour.
>
> However, in practice the bug is probably in FreeBSD's <varargs.h>, which
> doesn't use gcc's __builtin_next_arg(). gcc should notice that it is
> used and not inline functions that have it. <stdarg.h.> uses it, but I
> think there's another gcc builtin that it should be using.
Patch attached. The ellipsis causes gcc to flag this as a varargs function,
and the name "__builtin_va_alist" is special cased in gcc to hide the last
argument in the arglist.
Reviewed by: bde & phk
Submitted by: jlemon@americantv.com (Jonathan Lemon)
|
| 22203 |
02-Feb-1997 |
kato |
Deleted i386_cpus[]. i386_cpus[] is a static variable in identcpu.c.
Found-by: lint
|
| 21767 |
16-Jan-1997 |
bde |
Fixed printing of small offsets. E.g., -4(%ebp) is now printed
as -0x4(%ebp) instead of as _APTD+0xffc(%ebp), and if GUPROF is
defined, 8(%ebp) is now printed as 0x8(%ebp) instead of as
GMON_PROF_HIRES+0x4(%ebp).
|
| 21673 |
14-Jan-1997 |
jkh |
Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.
Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.
|
| 21493 |
10-Jan-1997 |
kato |
Staticize the functions rtc_inb, rtc_outb, rtc_serialcombit, and
rtc_serialcom. These functions are only used by PC98.
|
| 21362 |
06-Jan-1997 |
nate |
- Cleanup up the driver (remove un-needed parameters, white-space,
etc..), plus add a better display suspend function.
- Changed the Copyright's to reflect the new 'jp.FreeBSD.org' email
address.
Submitted by: nate & HOSOKAWA, Tatsumi <hosokawa@jp.FreeBSD.org>
|
| 21327 |
05-Jan-1997 |
nate |
Minor white-space and comment cleanups. No functional change.
Submitted by: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
|
| 21039 |
30-Dec-1996 |
dyson |
Let the VM system know that on certain arch's that VM_PROT_READ
also implies VM_PROT_EXEC. We support it that way for now,
since the break system call by default gives VM_PROT_ALL. Now
we have a better chance of coalesing map entries when mixing
mmap/break type operations. This was contributing to excessive
numbers of map entries on the modula-3 runtime system. The
problem is still not "solved", but the situation makes more
sense.
Eventually, when we work on architectures where VM_PROT_READ
is orthogonal to VM_PROT_EXEC, we will have to visit this
issue carefully (esp. regarding security issues.)
|
| 20186 |
07-Dec-1996 |
dyson |
Make LKM's build again. I have added the allegedly broken
ACTUALLY_LKM_NOT_KERNEL until the real fix comes through. Whatever
flag that is used to indicate building LKMs will have be be substituted
in the future. This allows proper selection of the usage of the
efficient, single instruction in the kernel, but alas, doesn't allow
for use in userland or LKMs :-(. Them's the breaks!!!
|
| 20185 |
07-Dec-1996 |
dyson |
Change endian.h so that when a kernel is compiled without I386_CPU, and
with one of the following (I486_CPU,I586_CPU,I686_CPU) so it can take
advantage of the very quick bswap insn. This keeps LKMs from being
built to take advantage of the insn, but also makes sure that the LKMs
can be run on all CPUs. (The LKMs don't pick up the CPU options :-( ).
|
| 20127 |
04-Dec-1996 |
asami |
Synchronize with the RELENG_2_2 branch.
Definite 2.2 candidate.
Submitted by: The FreeBSD(98) Development Team
|
| 20073 |
01-Dec-1996 |
sos |
Alot of fixes from kazu:
1. All the suggestions earlier made by Bruce: renaming some symbols,
stricter error checking, removing redundant code, etc.
2. The `psm' driver preserves the default counter resolution and
report rate, whatever they are after reset. (Based on reports and
suggestion from Nate and Rob Bolin).
3. The `psm' driver now does not check the so-called sync. bit in the
first byte of the data packet by default, so that the tapping feature
of ALPUS GlidePoint works (based on reports from Louis Mamakos). I
tested the code with ALPUS Desktop GlidePoint (M/N GP101) and found
no problem; tapping worked. It appears ALPUS produces several models
of GlidePoint. I hope the other models are OK too.
The check code can still be activated by defining the PSM_CHECKSYNC
option in the config file. (The bit checking slightly reduces, if not
completely eliminates, weird mouse behavior cased by unsynchronized
mouse data packets. It also helps us to detect if the mouse interrupt
can ever be lost. But, well, if there are devices which cannot be
supported this way...)
4. The `psm' driver does not include the protocol emulation code by
default. The code can still be compiled in if the PSM_EMULATION option
is specified in the config file. Louis Mamakos suggests the emulation
code is putting too much in the kernel, and `moused' works well.
I will think about this later and decide if the entire emulation
code should be removed.
5. And, of course, the fix in `scprobe()' from Bruce to cure the
UserConfig problem. My code in `kbdio.c' is slightly different from
his patch, but has the same effect. There still is a possibility that
`scprobe()' gets confused, if, for whatever reasons, the user holds
down a key for very long time during the boot process. But we cannot
cope with everything, can we?
Submitted by: Kazutaka YOKOTA (yokota@zodiac.mech.utsunomiya-u.ac.jp)
|
| 20026 |
29-Nov-1996 |
dyson |
Relax the constraints on the bswap opcode (it works on non-byte
registers.) Also clean up some namespace pollution, and remove
gcc-1 support (nothing really works with it anymore anyway.)
Submitted by: Bruce Evans <bde@freebsd.org> and me.
|
| 20010 |
29-Nov-1996 |
dyson |
Support the appropriate use of bswap instruction on non-I386 builds.
Per Wayne Scott of Intel, the old sequence took 20cycles!!! on a P6.
Another nice side-benefit is that the kernel is about 3K smaller!!!
Submitted by: Wayne Scott <wscott@ichips.intel.com>
|
| 19807 |
16-Nov-1996 |
jkh |
Commit AWE32 changes I forgot in my first round. Whoops!
|
| 19761 |
15-Nov-1996 |
nate |
KNF'ify.
|
| 19753 |
14-Nov-1996 |
sos |
Finally a start at sharing the kdb controller routines between
syscons and psm, curtesy Kazutaka Yokota with minor changes by
me. This contains an update of the psm driver as well.
This also fixes the breakage that I introduced to the psm driver by
making syscons poll for keyboard events in the atempt to fix the
hanging keyboard problem.
It works perfectly for me, and I'd like to hear from all that
have had keyboard/ps/2 mouse problems if this is the cure...
Submitted by: Kazutaka YOKOTA (yokota@zodiac.mech.utsunomiya-u.ac.jp)
|
| 19621 |
11-Nov-1996 |
dyson |
Support the PG_G flag on Pentium-Pro processors. This pretty
much eliminates the unnecessary unmapping of the kernel during
context switches and during invtlb...
|
| 19274 |
31-Oct-1996 |
julian |
Further improved version of hadling a HALT when there is no console.
|
| 19269 |
30-Oct-1996 |
asami |
More merge and update.
(1) deleted #if 0
pc98/pc98/mse.c
(2) hold per-unit I/O ports in ed_softc
pc98/pc98/if_ed.c
pc98/pc98/if_ed98.h
(3) merge more files by segregating changes into headers.
new file (moved from pc98/pc98):
i386/isa/aic_98.h
deleted:
well, it's already in the commit message so I won't repeat the
long list here ;)
Submitted by: The FreeBSD(98) Development Team
|
| 19172 |
25-Oct-1996 |
bde |
Improved biasing of i586 clock by adjusting for hardclock() latency.
I decided to do this for every hardclock() call instead of lazily
in microtime(). The lazy method is simpler but has more overhead
if microtime() is called a lot.
CPU_THISTICKLEN() is now a no-op and should probably go away.
Previously it did nothing directly but had the side effect of
setting i586_last_tick for CPU_CLOCKUPDATE() and i586_avg_tick for
debugging. CPU_CLOCKUPDATE() now uses a better method and
i586_avg_tick is too much trouble to maintain.
Reduced nesting of #includes in the usual case.
Increased nesting of #includes when CLOCK_HAIR is defined. This
is a kludge to get typedefs for inline functions only when the
inline functions are used. Normally only kern_clock.c defines
this. kern_clock.c can't include the i386 headers directly.
Removed unused LOCORE support.
|
| 19071 |
21-Oct-1996 |
nate |
When compiling with '-Wall -pedantic', the byte swapping macros gave the
following warning:
warning: ANSI C forbids braced-groups within expressions
Adding __extension__ before the statement-expression seems to work right.
Submitted by: bde (a *long* time ago)
|
| 19000 |
17-Oct-1996 |
bde |
Improved non-statistical (GUPROF) profiling:
- use a more accurate and more efficient method of compensating for
overheads. The old method counted too much time against leaf
functions.
- normally use the Pentium timestamp counter if available.
On Pentiums, the times are now accurate to within a couple of cpu
clock cycles per function call in the (unlikely) event that there
are no cache misses in or caused by the profiling code.
- optionally use an arbitrary Pentium event counter if available.
- optionally regress to using the i8254 counter.
- scaled the i8254 counter by a factor of 128. Now the i8254 counters
overflow slightly faster than the TSC counters for a 150MHz Pentium :-)
(after about 16 seconds). This is to avoid fractional overheads.
files.i386:
permon.c temporarily has to be classified as a profiling-routine
because a couple of functions in it may be called from profiling code.
options.i386:
- I586_CTR_GUPROF is currently unused (oops).
- I586_PMC_GUPROF should be something like 0x70000 to enable (but not
use unless prof_machdep.c is changed) support for Pentium event
counters. 7 is a control mode and the counter number 0 is somewhere
in the 0000 bits (see perfmon.h for the encoding).
profile.h:
- added declarations.
- cleaned up separation of user mode declarations.
prof_machdep.c:
Mostly clock-select changes. The default clock can be changed by
editing kmem. There should be a sysctl for this.
subr_prof.c:
- added copyright.
- calibrate overheads for the new method.
- documented new method.
- fixed races and and machine dependencies in start/stop code.
mcount.c:
Use the new overhead compensation method.
gmon.h:
- changed GPROF4 counter type from unsigned to int. Oops, this should
be machine-dependent and/or int32_t.
- reorganized overhead counters.
Submitted by: Pentium event counter changes mostly by wollman
|
| 18992 |
17-Oct-1996 |
bde |
Added missing extern declaration of timer_freq.
Sorted declarations of scalars.
|
| 18961 |
16-Oct-1996 |
bde |
Added macros CROSSJUMP(), CROSSJUMP_LABEL() and GPROF_RET. These will
be used to fix some benign(?) bugs in GUPROF profiling.
Fixed stale comments and long lines.
|
| 18907 |
13-Oct-1996 |
dyson |
Pmap_resident_count was mistakenly removed from pmap.h, thereby
disabling the RSS listing in ps and ^T. This commit re-inserts
the macro defn.
|
| 18897 |
12-Oct-1996 |
dyson |
Performance optimizations. One of which was meant to go in before the
previous snap. Specifically, kern_exit and kern_exec now makes a
call into the pmap module to do a very fast removal of pages from the
address space. Additionally, the pmap module now updates the PG_MAPPED
and PG_WRITABLE flags. This is an optional optimization, but helpful
on the X86.
|
| 18896 |
12-Oct-1996 |
bde |
Cleaned up:
- fixed a sloppy common-style declaration.
- removed an unused macro.
- moved once-used macros to the one file where they are used.
- removed unused forward struct declarations.
- removed __pure.
- declared inline functions as inline in their prototype as well
as in theire definition (gcc unfortunately allows the prototype
to be inconsistent).
- staticized.
|
| 18855 |
10-Oct-1996 |
bde |
Don't include "opt_cpu.h" in <machine/clock.h>, since this breaks lkm's.
The change breaks kern_clock.c; fix that temporarily by including
"opt_cpu.h" there.
|
| 18842 |
09-Oct-1996 |
bde |
Put I*86_CPU defines in opt_cpu.h.
|
| 18770 |
06-Oct-1996 |
bde |
Improved the btodb() and dbtob() macros. I made them give unsigned
[long long] results when I last worked on them, but they are normally
used together with to daddr_t's and off_t's which are signed, so the
unsigned results did little except cause warnings.
|
| 18769 |
06-Oct-1996 |
bde |
Cleaned up vm types. Cosmetic.
The main change is from unsigned long unsigned int. It just needs to
be a 32-bit type and unsigned int is most natural. Using a non-long
type has the "advantage" of hiding bugs in the "machine-independent"
code where it prints foo_t's using %d or %x. These bugs are currently
hidden bug not compiling with -Wformat.
I tried changing vm_ooffset_t from long long to unsigned long long, but
that was wrong because vm_ooffset_t needs to be long to match off_t,
although file offsets are never negative.
Reviewed by: dyson
|
| 18587 |
30-Sep-1996 |
sos |
Fix a couble of nasties regarding mouse pointer and different
resolutions.
Allow middle mouse button to be used for pasting.
Also added the beginnings of support for a splash page.
|
| 18567 |
29-Sep-1996 |
bde |
Added "memory" to clobber list in invlpg(). It needs it if invltlb()
needs it.
Fixed style in invlpg().
Sorted recently renamed functions.
Added prototypes in the non-gcc section for recently added/renamed
functions.
|
| 18548 |
28-Sep-1996 |
dyson |
Essentially rename pmap_update to be invltlb. It is a very machine
dependent operation, and not really a correct name. invltlb and invlpg
are more descriptive, and in the case of invlpg, a real opcode.
Additionally, fix the tlb management code for 386 machines.
|
| 18528 |
28-Sep-1996 |
dyson |
Move pmap_update_1pg to cpufunc.h. Additionally,
use the invlpg opcode instead of the nasty looking .byte directives.
There are some other minor micro-level code improvements to pmap.c
|
| 18513 |
27-Sep-1996 |
peter |
Apparently, BSDI have a new system call gate. I was experimenting
with this quite a while ago when somebody reported a BSD/OS 2.1 binary
that wouldn't run. I'm pretty sure they tried it and I'm pretty sure
they mentioned to me that the patch worked.
|
| 18512 |
27-Sep-1996 |
peter |
Drat, missed this prototype for random_select().
|
| 18490 |
24-Sep-1996 |
bde |
Fixed a few hundred warnings (2400 in LINT) for signed vs unsigned
comparisons in the inb() and outb() macros. I decided that int args
are OK here. Any type that can hold a u_int16_t without overflow
is correct, and 32-bit types are optimal.
Introduced a few tens of warnings (100 in LINT) for use of pessimized
(short) types for the port arg. Only a few drivers are affected by
this. u_short pessimizations aren't detected.
Added `__extension__' before the statement-expression in inb() so
that it can be compiled without warnings by gcc -pedantic.
|
| 18444 |
21-Sep-1996 |
bde |
Cleaned up all headers that include <sys/ioctl.h> or <sys/ioccom.h>:
- don't include <sys/ioctl.h> in any header. Include <sys/ioccom.h>
instead. This was already done in 4.4Lite for the most important
ioctl headers. Header spam currently increases kernel build
times by 10-20%. There are more than 30000 #includes (not counting
duplicates) for compiling LINT.
- include <sys/types.h> if and only it is necessary to make the header
almost self-sufficient (some ioctl headers still need structs from
elsewhere).
- uniformized idempotency ifdefs. Copied the style in the 4.4Lite
ioctl headers.
|
| 18265 |
12-Sep-1996 |
asami |
Another round of merge/update.
(1) Add PC98 support to apm_bios.h and ns16550.h, remove pc98/pc98/ic
(2) Move PC98 specific code out of cpufunc.h (to pc98.h)
(3) Let the boot subtrees look more alike
Submitted by: The FreeBSD(98) Development Team
<freebsd98-hackers@jp.freebsd.org>
|
| 18207 |
10-Sep-1996 |
bde |
Updated #includes to 4.4Lite style.
|
| 18163 |
08-Sep-1996 |
dyson |
Improve the scalability of certain pmap operations.
|
| 18107 |
07-Sep-1996 |
nate |
Unused file.
|
| 18085 |
06-Sep-1996 |
phk |
Remove these three devconf files entirely.
|
| 18010 |
03-Sep-1996 |
asami |
Second phase of merge, get rid of more machine-independent-dependencies.
Get rid of pc98/pc98/pc98_device.h.
Submitted by: The FreeBSD(98) Development Team
|
| 17879 |
28-Aug-1996 |
bde |
Cleaned up interrupt masking by declaring the state variable in a
machine-dependent macro and passing it to all machine-dependent
macros.
Eliminated the state variable for the GUPROF case.
|
| 17520 |
11-Aug-1996 |
dg |
Defined T_MCHK exception for i686; renumbered T_RESERVED to 29.
|
| 17394 |
02-Aug-1996 |
bde |
Eliminated i586_ctr_rate. Use i586_ctr_freq instead.
Changed i586_ctr_bias from long long to u_int. Only the low 32 bits
are used now that microtime uses a multiplication to do the scaling.
Previously the high 32 bits had to match those of rdtsc() to prevent
overflow traps and invalid timeval adjustments.
|
| 17384 |
01-Aug-1996 |
wollman |
Add an fls() inline function which does the opposite operation to
ffs(). (That is to say, it searches in the opposite direction.)
|
| 17371 |
31-Jul-1996 |
bde |
Eliminated pcb_inl. It was always 0 because context switches don't occur
in interrupt handlers.
|
| 17353 |
30-Jul-1996 |
bde |
Fixed the machdep.i8254_freq and machdep.i586_freq sysctls. Writes were
handled bogusly.
Centralized the setting of all the frequency variables. Set these
variables atomically. Some new ones aren't used yet.
|
| 17334 |
30-Jul-1996 |
dyson |
Backed out the recent changes/enhancements to the VM code. The
problem with the 'shell scripts' was found, but there was a 'strange'
problem found with a 486 laptop that we could not find. This commit
backs the code back to 25-jul, and will be re-entered after the snapshot
in smaller (more easily tested) chunks.
|
| 17294 |
27-Jul-1996 |
dyson |
This commit is meant to solve a couple of VM system problems or
performance issues.
1) The pmap module has had too many inlines, and so the
object file is simply bigger than it needs to be.
Some common code is also merged into subroutines.
2) Removal of some *evil* PHYS_TO_VM_PAGE macro calls.
Unfortunately, a few have needed to be added also.
The removal caused the need for more vm_page_lookups.
I added lookup hints to minimize the need for the
page table lookup operations.
3) Removal of some bogus performance improvements, that
mostly made the code more complex (tracking individual
page table page updates unnecessarily). Those improvements
actually hurt 386 processors perf (not that people who
worry about perf use 386 processors anymore :-)).
4) Changed pv queue manipulations/structures to be TAILQ's.
5) The pv queue code has had some performance problems since
day one. Some significant scalability issues are resolved
by threading the pv entries from the pmap AND the physical
address instead of just the physical address. This makes
certain pmap operations run much faster. This does
not affect most micro-benchmarks, but should help loaded system
performance *significantly*. DG helped and came up with most
of the solution for this one.
6) Most if not all pmap bit operations follow the pattern:
pmap_test_bit();
pmap_clear_bit();
That made for twice the necessary pv list traversal. The
pmap interface now supports only pmap_tc_bit type operations:
pmap_[test/clear]_modified, pmap_[test/clear]_referenced.
Additionally, the modified routine now takes a vm_page_t arg
instead of a phys address. This eliminates a PHYS_TO_VM_PAGE
operation.
7) Several rewrites of routines that contain redundant code to
use common routines, so that there is a greater likelihood of
keeping the cache footprint smaller.
|
| 17256 |
23-Jul-1996 |
asami |
Update to current state of PC98 world.
Submitted by: The FreeBSD(98) development team
|
| 17203 |
17-Jul-1996 |
joerg |
Introduce two /dev/audio compat alias names for flushing and draining
the pcaudio device. Now, XBoing sounds much better...
|
| 16878 |
01-Jul-1996 |
bde |
Fixed lots of warnings about unportable casts of pointers to volatile
variables: don't depend on the compiler generating atomic code to set
the variables - use inline asm to specify the atomic instruction(s)
explicitly.
|
| 16875 |
01-Jul-1996 |
bde |
Moved declarations of non-cpu things from <machine/cpufunc.h> to better
places.
|
| 16725 |
25-Jun-1996 |
bde |
trap.c:
Fixed profiling of system times. It was pre-4.4Lite and didn't support
statclocks. System times were too small by a factor of 8.
Handle deferred profiling ticks the 4.4Lite way: use addupc_task() instead
of addupc(). Call addupc_task() directly instead of using the ADDUPC()
macro.
Removed vestigial support for PROFTIMER.
switch.s:
Removed addupc().
resourcevar.h:
Removed ADDUPC() and declarations of addupc().
cpu.h:
Updated a comment. i386's never were tahoe's, and the deferred profiling
tick became (possibly) multiple ticks in 4.4Lite.
Obtained from: mostly from NetBSD
|
| 16693 |
25-Jun-1996 |
sos |
Change the way moused talk to syscons, now its only delivering mouseevents
via an ioctl (MOUSE_ACTION).
Fixed a couple of bugs (destructive cursor, uncut, jitter).
Now applications can use the mouse via the MOUSE_MODE ioctl, its
possible to have a signal sent on mouseevents, makeing an event loop
in the application take over mouseevents.
|
| 16564 |
21-Jun-1996 |
sos |
Some news for syscons (long overdue):
Real support for a Textmode mousecursor, works by reprogramming the
charset. Together with this support for cut&paste in text mode.
To use it a userland daemon is needed (moused), which provides
the interface to the various mice protokols.
Bug fixes here and there, all known PR's closed by this update.
|
| 16439 |
17-Jun-1996 |
bde |
Reduced nesting of #includes in random.h and adjusted isa/random_machdep.c
to match (pc98/random_machdep.c probably requires a similar change). This
is a problem area for the PC98 merge - all PC98 ifdefs in <machine/*.h> are
kludges to work around incorrect layering.
|
| 16363 |
14-Jun-1996 |
asami |
The Great PC98 Merge.
All new code is "#ifdef PC98"ed so this should make no difference to
PC/AT (and its clones) users.
Ok'd by: core
Submitted by: FreeBSD(98) development team
|
| 16216 |
08-Jun-1996 |
bde |
Removed unnecessary forward declarations of incomplete structs.
|
| 16177 |
07-Jun-1996 |
jkh |
A trailing patch Jim left out of the last commit.
Submitted-by: james
|
| 16100 |
03-Jun-1996 |
sos |
Added missing CR0_NW define for Cyrix 486DLC support. It's still not
stable on my hardware, but its better... *sigh*
Obtained from: NetBSD
|
| 16029 |
31-May-1996 |
peter |
Jump some hoops to have the *.s code being able to be run through both an
ansi and traditional cpp.
The nesting rules of macros are different, which required some changes.
Use __CONCAT(x,y) instead of /**/.
Redo some comments to use /* */ rather than "# comment" because the ansi
cpp cares about those, and also cares about quote matching.
|
| 15884 |
23-May-1996 |
wollman |
Add an incremental checksum update routine. Perhaps some i386 assembly
guru out there can find a way to take advantage of little-endianness to
make this computation more efficient. (I am certain that it can be done,
but haven't managed to make it work myself.)
|
| 15809 |
18-May-1996 |
dyson |
This set of commits to the VM system does the following, and contain
contributions or ideas from Stephen McKay <syssgm@devetir.qld.gov.au>,
Alan Cox <alc@cs.rice.edu>, David Greenman <davidg@freebsd.org> and me:
More usage of the TAILQ macros. Additional minor fix to queue.h.
Performance enhancements to the pageout daemon.
Addition of a wait in the case that the pageout daemon
has to run immediately.
Slightly modify the pageout algorithm.
Significant revamp of the pmap/fork code:
1) PTE's and UPAGES's are NO LONGER in the process's map.
2) PTE's and UPAGES's reside in their own objects.
3) TOTAL elimination of recursive page table pagefaults.
4) The page directory now resides in the PTE object.
5) Implemented pmap_copy, thereby speeding up fork time.
6) Changed the pv entries so that the head is a pointer
and not an entire entry.
7) Significant cleanup of pmap_protect, and pmap_remove.
8) Removed significant amounts of machine dependent
fork code from vm_glue. Pushed much of that code into
the machine dependent pmap module.
9) Support more completely the reuse of already zeroed
pages (Page table pages and page directories) as being
already zeroed.
Performance and code cleanups in vm_map:
1) Improved and simplified allocation of map entries.
2) Improved vm_map_copy code.
3) Corrected some minor problems in the simplify code.
Implemented splvm (combo of splbio and splimp.) The VM code now
seldom uses splhigh.
Improved the speed of and simplified kmem_malloc.
Minor mod to vm_fault to avoid using pre-zeroed pages in the case
of objects with backing objects along with the already
existant condition of having a vnode. (If there is a backing
object, there will likely be a COW... With a COW, it isn't
necessary to start with a pre-zeroed page.)
Minor reorg of source to perhaps improve locality of ref.
|
| 15802 |
17-May-1996 |
jkh |
A patch for the meteor device driver. It fixes:
1) A spelling error pointed out by Paco Hope.
2) A bug in the range checking routing pointed out by Jim Bray.
3) Enables the setting of frames per second.
Submitted-By: Jim Lowe <james@miller.cs.uwm.edu>
|
| 15619 |
04-May-1996 |
peter |
Add $Id$
|
| 15602 |
04-May-1996 |
pst |
Update to 1.1beta5d
|
| 15600 |
04-May-1996 |
peter |
This commit was generated by cvs2svn to compensate for changes in r15599,
which included commits to RCS files with non-trunk default branches.
|
| 15583 |
03-May-1996 |
phk |
Another sweep over the pmap/vm macros, this time with more focus on
the usage. I'm not satisfied with the naming, but now at least there is
less bogus stuff around.
|
| 15565 |
02-May-1996 |
phk |
Move atdevbase out of locore.s and into machdep.c
Macroize locore.s' page table setup even more, now it's almost readable.
Rename PG_U to PG_A (so that I can...)
Rename PG_u to PG_U. "PG_u" was just too ugly...
Remove some unused vars in pmap.c
Remove PG_KR and PG_KW
Remove SSIZE
Remove SINCR
Remove BTOPKERNBASE
This concludes my spring cleaning, modulus any bug fixes for messes I
have made on the way.
(Funny to be back here in pmap.c, that's where my first significant
contribution to 386BSD was... :-)
|
| 15544 |
02-May-1996 |
phk |
This can go now.
|
| 15543 |
02-May-1996 |
phk |
removed:
CLBYTES PD_SHIFT PGSHIFT NBPG PGOFSET CLSIZELOG2 CLSIZE pdei()
ptei() kvtopte() ptetov() ispt() ptetoav() &c &c
new:
NPDEPG
Major macro cleanup.
|
| 15508 |
01-May-1996 |
bde |
Added calibration the i8254 and the i586 clocks agains the RTC at boot
time. The results are currently ignored unless certain temporary options
are used.
Added sysctls to support reading and writing the clock frequency variables
(not the frequencies themselves). Writing is supposed to atomically
adjust all related variables.
machdep.c:
Fixed spelling of a function name in a comment so that I can log this
message which should have been with the previous commit.
Initialize `cpu_class' earlier so that it can be used in startrtclock()
instead of in calibrate_cyclecounter() (which no longer exists).
Removed range checking of `cpu'. It is always initialized to CPU_XXX
so it is less likely to be out of bounds than most variables.
clock.h:
Removed I586_CYCLECTR(). Use rdtsc() instead.
clock.c:
TIMER_FREQ is now a variable timer_freq that defaults to the old value of
TIMER_FREQ. #define'ing TIMER_FREQ should still work and may be the best
way of setting the frequency.
Calibration involves counting cycles while watching the RTC for one second.
This gives values correct to within (a few ppm) + (the innaccuracy of the
RTC) on my systems.
|
| 15501 |
01-May-1996 |
bde |
Don't return unused values in cpu_switch() or savectx().
Don't preserve unused registers in the NPX case in savectx().
|
| 15484 |
01-May-1996 |
bde |
Oops, this should have been with the ctype changes.
Fixed longstanding namespace convolution involving rune_t vs wchar_t...
This change breaks similar (but more convoluted) convolutions in the
stddef.h in gcc distributions. Ports of gcc should avoid using the
gcc headers.
|
| 15472 |
30-Apr-1996 |
phk |
pte.h: Add the VADDR(pdi,pti) macro to construct virtual address from
page dir+table index.
pmap.h: remove NUPDE, it was wrong and not used. Sanitize KSTKPTEOFF.
vmparam.h: Calculate virtual addr from PDI+PTI from pmap.h rather than
using magic math. Remove UPDT, not used.
|
| 15379 |
25-Apr-1996 |
phk |
Fix cpu_fork for real.
Suggested by: bde
|
| 15360 |
23-Apr-1996 |
nate |
Adds the APM hooks into the generic pccard kernel files. With this code
in place device drivers can now register power-down/power-up routines so
that we can use common routines to power-up/power-down cards for
insert/removals, suspend/resume, etc..
Reviewed by: phk
Submitted by: the 'Nomads'
|
| 15351 |
22-Apr-1996 |
nate |
Updated the laptop 'kludge' file. Hopefully this can go away soon.
Submitted by: The 'Nomads'
|
| 15345 |
22-Apr-1996 |
nate |
- add apm to the GENERIC kernel (disabled by default), and add some comments
regarding apm to LINT
- Disabled the statistics clock on machines which have an APM BIOS and
have the options "APM_BROKEN_STATCLOCK" enabled (which is default
in GENERIC now)
- move around some of the code in clock.c dealing with the rtc to make
it more obvios the effects of disabling the statistics clock
Reviewed by: bde
|
| 15304 |
19-Apr-1996 |
phk |
savectx returns through cpu_switch in case of the child, so it must
return void just like cpu_switch. Fix prototype and usage from machdep.c
|
| 15301 |
18-Apr-1996 |
phk |
Fix a bogon. cpu_fork & savectx ecpected cpu_switch to restore %eax,
they shouldn't.
|
| 15291 |
18-Apr-1996 |
wollman |
Add an inline function to compute the common-case IP header checksum.
|
| 15244 |
13-Apr-1996 |
bde |
Changed _BSD_PID_T_ from long to int. Lite2 changed pid_t from long to
int32_t in <sys/types.h> but this change was missed when the Lite2 types
were merged.
|
| 15174 |
10-Apr-1996 |
nate |
hp300 -> i386
|
| 15122 |
07-Apr-1996 |
bde |
Changed bdb() to breakpoint() and always enable it.
Made the style more consistent, especially for the new Pentium functions.
|
| 15111 |
07-Apr-1996 |
bde |
Moved declaration of bootverbose to a better place. It isn't
machine-dependent.
Moved declaration of cpu_fork() to a better place. Only its
implementation is machine-dependent.
|
| 15045 |
05-Apr-1996 |
ache |
Add wall_cmos_clock sysctl variable, needed to manage adjkerntz even for
UTC cmos clocks (needed for Local Timezone FSes)
|
| 15018 |
03-Apr-1996 |
dyson |
Fixed a problem that the UPAGES of a process were being run down
in a suboptimal manner. I had also noticed some panics that appeared
to be at least superficially caused by this problem. Also, included
are some minor mods to support more general handling of page table page
faulting. More details in a future commit.
|
| 14944 |
31-Mar-1996 |
bde |
Finished removing NOP macros.
|
| 14943 |
31-Mar-1996 |
bde |
Moved rtcin() to clock.c.
Always delay using one inb(0x84) after each i/o in rtcin() - don't
do this conditional on the bogus option DUMMY_NOPS not being defined.
If you want an optionally slightly faster rtcin() again, then inline
it and use a better named option or sysctl variable. It only needs
to be fast in rtcintr().
|
| 14916 |
29-Mar-1996 |
bde |
Parenthesized macros.
Fixed munged tabs.
|
| 14889 |
28-Mar-1996 |
wollman |
>Blush<. Use the correct opcode for the WRMSR instruction.
|
| 14886 |
28-Mar-1996 |
jkh |
A bug fix and a couple of new modes for the meteor driver.
Submitted-By: Jim Lowe <james@miller.cs.uwm.edu>
|
| 14825 |
26-Mar-1996 |
wollman |
Add support for Pentium and Pentium Pro performance counters.
(This code is as yet untested; to come after man page is written.)
This also adds inlines to cpufunc.h for the RDTSC, RDMSR, WRMSR, and RDPMC
instructions. The user-mode interface is via a subdevice of mem.c;
there is also a kernel-size interface which might be used to aid
profiling.
|
| 14736 |
21-Mar-1996 |
pst |
Add support for /very/ experimental -e (exposure) option.
Not documented yet, because it's for grownups and geeks for now.
|
| 14608 |
13-Mar-1996 |
nate |
Return the status of the APM support (enabled/disabled) with the
APM_GETINFO ioctl.
|
| 14595 |
12-Mar-1996 |
dg |
Killed some historical #define cruft that we've never used in FreeBSD:
UDOT_SZ
SYSPTSIZE
USRPTSIZE
MSGBUFPTECNT
DMMIN
DMMAX
DMTEXT
USRIOSIZE
VM_PHYS_SIZE
|
| 14579 |
12-Mar-1996 |
nate |
Bring in some prototypes that shouldn't have been dependant on
APM_SLOWSTART, which are generic APM functions.
|
| 14537 |
11-Mar-1996 |
nate |
Bring in most of Bruce's prot_to_real() changes into the APM BIOS
startup code.
Reviewed by: bde
|
| 14509 |
11-Mar-1996 |
hsu |
From Lite2: add typedef for register_t.
Reviewed by: davidg & bde
|
| 14331 |
02-Mar-1996 |
peter |
Mega-commit for Linux emulator update.. This has been stress tested under
netscape-2.0 for Linux running all the Java stuff. The scrollbars are now
working, at least on my machine. (whew! :-)
I'm uncomfortable with the size of this commit, but it's too
inter-dependant to easily seperate out.
The main changes:
COMPAT_LINUX is *GONE*. Most of the code has been moved out of the i386
machine dependent section into the linux emulator itself. The int 0x80
syscall code was almost identical to the lcall 7,0 code and a minor tweak
allows them to both be used with the same C code. All kernels can now
just modload the lkm and it'll DTRT without having to rebuild the kernel
first. Like IBCS2, you can statically compile it in with "options LINUX".
A pile of new syscalls implemented, including getdents(), llseek(),
readv(), writev(), msync(), personality(). The Linux-ELF libraries want
to use some of these.
linux_select() now obeys Linux semantics, ie: returns the time remaining
of the timeout value rather than leaving it the original value.
Quite a few bugs removed, including incorrect arguments being used in
syscalls.. eg: mixups between passing the sigset as an int, vs passing
it as a pointer and doing a copyin(), missing return values, unhandled
cases, SIOC* ioctls, etc.
The build for the code has changed. i386/conf/files now knows how
to build linux_genassym and generate linux_assym.h on the fly.
Supporting changes elsewhere in the kernel:
The user-mode signal trampoline has moved from the U area to immediately
below the top of the stack (below PS_STRINGS). This allows the different
binary emulations to have their own signal trampoline code (which gets rid
of the hardwired syscall 103 (sigreturn on BSD, syslog on Linux)) and so
that the emulator can provide the exact "struct sigcontext *" argument to
the program's signal handlers.
The sigstack's "ss_flags" now uses SS_DISABLE and SS_ONSTACK flags, which
have the same values as the re-used SA_DISABLE and SA_ONSTACK which are
intended for sigaction only. This enables the support of a SA_RESETHAND
flag to sigaction to implement the gross SYSV and Linux SA_ONESHOT signal
semantics where the signal handler is reset when it's triggered.
makesyscalls.sh no longer appends the struct sysentvec on the end of the
generated init_sysent.c code. It's a lot saner to have it in a seperate
file rather than trying to update the structure inside the awk script. :-)
At exec time, the dozen bytes or so of signal trampoline code are copied
to the top of the user's stack, rather than obtaining the trampoline code
the old way by getting a clone of the parent's user area. This allows
Linux and native binaries to freely exec each other without getting
trampolines mixed up.
|
| 14320 |
02-Mar-1996 |
jkh |
Hopefully, this will fix the problems that some people have been having with
the S-Video input. It also has code in the driver for the meteor RGB support
and some other bug fixes. I don't have a meteor RGB but I have been told
that it works.
Submitted by: Jim Lowe <james@miller.cs.uwm.edu>
|
| 14243 |
25-Feb-1996 |
dyson |
Fix a problem with tracking the modified bit. Eliminate the
ugly inline-asm code, and speed up the page-table-page tracking.
|
| 14175 |
22-Feb-1996 |
joerg |
. move out the error and status register def's for wt into
<machine/wtio.h>, so mt(1) can print them,
. cosmetics: put the return type and the function name onto
different lines.
|
| 14173 |
21-Feb-1996 |
nate |
Updated PC-CARD support to contain most of the code from the latest
Japanese BSD-Nomad release.
Reviewed by: phk
Submitted by: hosokawa@mt.cs.keio.ac.jp and the rest of the Nomads
|
| 13959 |
07-Feb-1996 |
wollman |
Add a couple of macros I expect to need.
|
| 13937 |
06-Feb-1996 |
wollman |
Clean up Ethernet drivers:
- fill in and use ifp->if_softc
- use if_bpf rather than private cookie variables
- change bpf interface to take advantage of this
- call ether_ifattach() directly from Ethernet drivers
- delete kludge in if_attach() that did this indirectly
|
| 13908 |
04-Feb-1996 |
dg |
Rewrote cpu_fork so that it doesn't use pmap_activate, and removed
pmap_activate since it's not used anymore. Changed cpu_fork so that
it uses one line of inline assembly rather than calling mvesp() to
get the current stack pointer. Removed mvesp() since it is no longer
being used.
|
| 13858 |
02-Feb-1996 |
pst |
Remove the ability for the user mode programs to specify bidirectional
vs unidirectional transfer modes. The kernel handles hardware, user mode
programs shouldn't get in the way.
This cleans up some really ugly grots that I hated too. :-)
Suggested by: Sujal Patel <smpatel@wam.umd.edu>
|
| 13856 |
02-Feb-1996 |
pst |
Add support for Connectix QuickCam(tm)
* warning: this user interface is still in flux pending negotiations
* with other quickcam driver authors. It is _not_ compatible with the
* original linux interface due to the fact that it was too restrictive.
|
| 13815 |
01-Feb-1996 |
jkh |
Sync with latest Meteor and Spigot sources from James.
Submitted by: Jim Lowe <james@miller.cs.uwm.edu>
|
| 13765 |
30-Jan-1996 |
mpp |
Fix a bunch of spelling errors in the comment fields of
a bunch of system include files.
|
| 13758 |
30-Jan-1996 |
wollman |
No longer use the cyclecounter to attempt to correct for late or missed
clock interrupts.
Keep a 1-in-16 smoothed average of the length of each tick. If the
CPU speed is correctly diagnosed, this should give experienced users
enough information to figure out a more suitable value for `tick'.
|
| 13646 |
27-Jan-1996 |
bde |
Allocate DMA bounce buffers only when requested by drivers. Only the
fd and wt drivers need bounce buffers, so this normally saves 32K-1K
of kernel memory.
Keep track of which DMA channels are busy. isa_dmadone() must now be
called when DMA has finished or been aborted.
Panic for unallocated and too-small (required) bounce buffers.
fd.c:
There will be new warnings about isa_dmadone() not being called after
DMA has been aborted.
sound/dmabuf.c:
isa_dmadone() needs more parameters than are available, so temporarily
use a new interface isa_dmadone_nobounce() to avoid having to worry
about panics for fake parameters. Untested.
|
| 13611 |
24-Jan-1996 |
peter |
Add commands for ptrace get/set registers.. (Same numbers as NetBSD)
|
| 13580 |
23-Jan-1996 |
dg |
Simplified savectx() a little and fixed a bug that caused it to return
garbage in the child process rather than "1" like it is supposed to.
Reviewed by: bde
|
| 13529 |
21-Jan-1996 |
jkh |
Newest version of the Matrox Meteor driver. Tested with various MBONE
tools and found to work better with both nv and vic.
Submitted by: Jim Lowe <james@miller.cs.uwm.edu>
|
| 13454 |
16-Jan-1996 |
bde |
Removed declarations of nonexistent functions.
|
| 13157 |
01-Jan-1996 |
bde |
Fixed user-mode mcount which I broke in the previous revision.
Do it the old way for now.
Moved recent additions around a lot to minimise ifdefs.
Added prototypes.
|
| 13122 |
30-Dec-1995 |
peter |
recording cvs-1.6 file death
|
| 13107 |
29-Dec-1995 |
bde |
Implemented non-statistical kernel profiling. This is based on
looking at a high resolution clock for each of the following events:
function call, function return, interrupt entry, interrupt exit,
and interesting branches. The differences between the times of
these events are added at appropriate places in a ordinary histogram
(as if very fast statistical profiling sampled the pc at those
places) so that ordinary gprof can be used to analyze the times.
gmon.h:
Histogram counters need to be 4 bytes for microsecond resolutions.
They will need to be larger for the 586 clock.
The comments were vax-centric and wrong even on vaxes. Does anyone
disagree?
gprof4.c:
The standard gprof should support counters of all integral sizes
and the size of the counter should be in the gmon header. This
hack will do until then. (Use gprof4 -u to examine the results
of non-statistical profiling.)
config/*:
Non-statistical profiling is configured with `config -pp'.
`config -p' still gives ordinary profiling.
kgmon/*:
Non-statistical profiling is enabled with `kgmon -B'. `kgmon -b'
still enables ordinary profiling (and distables non-statistical
profiling) if non-statistical profiling is configured.
|
| 13099 |
29-Dec-1995 |
markm |
1) ifdef out some unused functions (for now)
2) improve 586 support
3) add 686 support
4) clean up comments etc
Submitted by: bde
|
| 13086 |
28-Dec-1995 |
dg |
Made bzero a function vector and added a 586/686 optimized version of
bzero.
Deprecated blkclr (removed it).
Removed some old cruft from cpufunc.h.
The optimized bzero was submitted by Torbjorn Granlund <tege@matematik.su.se>
The kernel adaption and other changes by me.
|
| 13057 |
27-Dec-1995 |
markm |
Clean up and make more universal. Next version of random device.
|
| 13013 |
25-Dec-1995 |
bde |
Fixed staticizing. Some functions aren't static but depend on
the undocumented previously unLINTed option `APM_SLOWSTART'.
|
| 13000 |
24-Dec-1995 |
dg |
Add Pentium Pro CPU detection and special handling. For now, all the
optimizations we have for 586s also apply to 686s...this will be fine-
tuned in the future as appropriate.
|
| 12929 |
19-Dec-1995 |
dg |
Implemented a (sorely needed for years) double fault handler to catch stack
overflows.
It sure would be nice if there was an unmapped page between the PCB and
the stack (and that the size of the stack was configurable!). With the
way things are now, the PCB will get clobbered before the double fault
handler gets control, making somewhat of a mess of things. Despite this,
it is still fairly easy to poke around in the overflowed stack to figure
out the cause.
|
| 12905 |
17-Dec-1995 |
bde |
Cleaned up prototypes in pmap headers: removed ones for nonexistent
functions; moved misplaced ones; restored most of KNFish formatting
from 4.4lite version; removed bogus __BEGIN/END_DECLS.
|
| 12817 |
14-Dec-1995 |
phk |
Make math_emulators LKMable.
|
| 12767 |
11-Dec-1995 |
dyson |
Changes to support 1Tb filesizes. Pages are now named by an
(object,index) pair instead of (object,offset) pair.
|
| 12724 |
10-Dec-1995 |
phk |
Staticize and cleanup.
|
| 12675 |
08-Dec-1995 |
julian |
Pass 3 of the great devsw changes
most devsw referenced functions are now static, as they are
in the same file as their devsw structure. I've also added DEVFS
support for nearly every device in the system, however
many of the devices have 'incorrect' names under DEVFS
because I couldn't quickly work out the correct naming conventions.
(but devfs won't be coming on line for a month or so anyhow so that doesn't
matter)
If you "OWN" a device which would normally have an entry in /dev
then search for the devfs_add_devsw() entries and munge to make them right..
check out similar devices to see what I might have done in them in you
can't see what's going on..
for a laugh compare conf.c conf.h defore and after... :)
I have not doen DEVFS entries for any DISKSLICE devices yet as that will be
a much more complicated job.. (pass 5 :)
pass 4 will be to make the devsw tables of type (cdevsw * )
rather than (cdevsw)
seems to work here..
complaints to the usual places.. :)
|
| 12639 |
05-Dec-1995 |
bde |
Moved some prototypes to a better place.
Removed stale prototypes.
Added prototypes.
Added empty lines.
|
| 12608 |
03-Dec-1995 |
bde |
__purified pmap_pte(). This seems to make no difference.
|
| 12592 |
03-Dec-1995 |
bde |
Moved inline functions for insque() and remque() to <sys/queue.h>.
Protected them with `#ifdef KERNEL' so that <sys/queue.h> is valid C++.
Added the necessary #includes of <sys/queue.h>.
These functions are bogus and should be replaced by the queue macros.
|
| 12589 |
03-Dec-1995 |
bde |
Removed unused thread support (partly to get rid of its incomplete
function declarations).
Removed unused #includes (lots of vm ones).
|
| 12533 |
29-Nov-1995 |
wollman |
Fix Pentium CPU rate diagnosis:
- Don't print out meaningless iCOMP numbers, those are for droids.
- Use a shorter wait to determine clock rate to avoid deficiencies
in DELAY().
- Use a fixed-point representation with 8 bits of fraction to store
the rate and rationalize the variable name. It would be
possible to use even more fraction if it turns out to be
worthwhile (I rather doubt it).
The question of source code arrangement remains unaddressed.
|
| 12511 |
29-Nov-1995 |
jkh |
A batch of Jim Lowe's patches:
o Add signed/unsigned functionality to the matrox meteor device driver.
o Apply a few fixes to the sound driver.
o Add a ``SPIGOT_UNSECURE'' compile time definition so, if one defines
SPIGOT_UNSECURE in their conf file, then they can use the spigot w/o
root. There is a warning that this allows users access to the IO
page which is probably not secure.
Submitted by: james
|
| 12496 |
28-Nov-1995 |
peter |
Mainly cosmetic cleanups... It now uses more consistant message reporting
on the console, and no longer uses "SLXOS" which I suspect may be a
trademark... (I'm not sure, but this is not really a SLXOS driver anyway)
|
| 12453 |
21-Nov-1995 |
bde |
Completed function declarations and/or added prototypes.
|
| 12429 |
20-Nov-1995 |
phk |
Mega commit for sysctl.
Convert the remaining sysctl stuff to the new way of doing things.
the devconf stuff is the reason for the large number of files.
Cleaned up some compiler warnings while I were there.
|
| 12299 |
14-Nov-1995 |
phk |
Removed:
#include <i386/isa/isa_device.h>
#include <i386/eisa/eisaconf.h>
#include <pci/pcireg.h>
#include <pci/pcivar.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
they are not needed, and slows down compilation.
|
| 12174 |
09-Nov-1995 |
peter |
Sync the public source with what I'm currently running.
Most of this is cleaning up, but there are some functional changes,
doc/comment improvements, error checking, gcc -Wall cleanups. Input buffer
flushing is enabled now, although I'm still not quite certain it's right.
|
| 12091 |
05-Nov-1995 |
gibbs |
Modifications for the new eisaconf.
|
| 12080 |
04-Nov-1995 |
bde |
Added `#include "ioconf.h"' to <machine/conf.h> and cleaned up the
misplaced extern declarations (mostly prototypes of interrupt handlers)
that this exposed. The prototypes should be moved back to the driver
sources when the functions are staticalized.
Added idempotency guards to <machine/conf.h>. "ioconf.h" can't be
included when building LKMs so define a wart in bsd.kmod.mk to help
guard against including it.
|
| 12071 |
04-Nov-1995 |
bde |
Moved prototypes for devswitch functions from conf.c and driver sources
to <machine/conf.h>. conf.h was mechanically generated by
`grep ^d_ conf.c >conf.h'. This accounts for part of its ugliness. The
prototypes should be moved back to the driver sources when the functions
are staticalized.
|
| 11939 |
30-Oct-1995 |
bde |
Mask netisrs during softtty isrs. This may fix PR 798. SLIP and PPP
line discipline interrupt handlers more or less expect to be called at
spltty() == splimp(), although they have internal splimp()s that are
bogus if this expectation is satisfied. They are called at splsoftty()
from many tty drivers, so they were not protected from being reentered
from their own netisrs. They certainly don't expect that but are
apparently remarkably robust if it occurs. The problem in PR 798 seems
to be caused by pppstart() being reentered and finishing off the output
in progress by following the (stale) sc->sc_outm pointer. Then the
original pppstart() finds garbage in m2 after MFREE(m, m2). slstart()
doesn't have internal state like sc_outm so reentry of it probably only
causes out of order and dropped packets.
|
| 11875 |
28-Oct-1995 |
markm |
Theodore Ts'po's random number gernerator for Linux, ported by me.
This code will only be included in your kernel if you have
'options DEVRANDOM', but that will fall away in a couple of days.
Obtained from: Theodore Ts'o, Linux
|
| 11452 |
12-Oct-1995 |
wollman |
Reduce jitter of Pentium microtime() implementation by letting the counter
free-run and doing a subtract in microtime() rather than resetting the
counter to zero at every clock tick. In combination with the changes to
kern_clock.c, this should eliminate all the immediately obvious sources
of systematic jitter in timekeeping on Pentium machines.
|
| 11222 |
05-Oct-1995 |
phk |
remove GCC divsi3 routines which are never used.
|
| 11189 |
04-Oct-1995 |
jkh |
This upgrades the driver for Cronyx-Sigma multiplexor boards
from version 1.2 to version 1.9.
Submitted by: Serge Vakulenko, <vak@cronyx.ru>
|
| 10910 |
19-Sep-1995 |
bde |
Fix benign type mismatches in isa interrupt handlers. Many returned int
instead of void.
|
| 10707 |
13-Sep-1995 |
peter |
Move some kernel-only stuff to a kernel-only file.
Submitted by: bde
|
| 10618 |
08-Sep-1995 |
julian |
Submitted by: Luigi Rizzo
Obtained from: Luigi and gunther
yeah I forgot this one....
|
| 10537 |
03-Sep-1995 |
julian |
devfs changes..
changes to allow devices that don't probe (e.g. /dev/mem)
to create devfs entries
this required giving 'configure' its own SYSINIT entry
so we could duck in just before it with a DEVFS init
and some device inits..
my devfs now looks like:
./misc
./misc/speaker
./misc/mem
./misc/kmem
./misc/null
./misc/zero
./misc/io
./misc/console
./misc/pcaudio
./misc/pcaudioctl
./disks
./disks/rfloppy
./disks/rfloppy/fd0.1440
./disks/rfloppy/fd1.1200
./disks/floppy
./disks/floppy/fd0.1440
./disks/floppy/fd1.1200
also some sligt cleanups.. DEVFS needs a lot of work
but I'm getting back to it..
|
| 10508 |
01-Sep-1995 |
jkh |
Jim's latest fixes.
Submitted by: james
|
| 10391 |
28-Aug-1995 |
jkh |
Kernel components of Matrox Meteor driver.
Submitted by: Mark Tinguely <tinguely@plains.nodak.edu> and Jim Lowe <james>
|
| 10343 |
26-Aug-1995 |
bde |
Don't declare a nonexistent function.
Fix formatting of recent changes.
|
| 10342 |
26-Aug-1995 |
bde |
Remove "memory" clobber statement from enable_intr(). Enabling interrupts
doesn't invalidate loaded variables.
Fix formatting of recent changes.
|
| 10160 |
22-Aug-1995 |
peter |
add a new Debug mode.. "DBG_OPTIM" - for observing the L_RINT bypass
|
| 10092 |
17-Aug-1995 |
dg |
Killed some unused stuff inherited from Bill Jolitz. Note that since
this changes the size of the pcb struct, gdb will need to be rebuilt
or debugging won't work correctly.
Reviewed by: Bruce Evans
|
| 10044 |
13-Aug-1995 |
peter |
Next round of cleanups. Some more debugging hooks added, si_softc definition
moved to the driver proper, so that <machine/si.h> can be #included by user
programs without needing to include stuff from /sys/i386/isa..
Various (now) redundant features removed, eg: the locks on IXANY and HWFLOW
as these are now done with the "initial" and "lock" termios devices.
Note that it still (for reasons unknown) appears to be masking data to
7-bit with ppp - hence the cleanup to support the debugging via 'sicontrol'
|
| 10015 |
09-Aug-1995 |
peter |
Bring in my long-overdue version of the Specialix driver.
This was originally ported to BSDI by Andy Rutter <andy@acronym.co.uk>.
At the end of the day, this code has very little in common with Andy's
version, or the Specialix SYSV version. Essentially it has been gradually
and almost completely rewritten, with LOTS of advice and inspiration from
Bruce Evans. There are a couple of missing bits still, but they are minor.
The user-mode "sicontrol" program is in sad shape and will come in soon.
Transparent printing died a timely death.. Maybe later..
Jeremy Rolls @ Specialix (Development directory) has confirmed this is OK
to distribute, and Andy personally sent me his version that I started from.
Although this driver stood up to a nasty stress-test in this form, I am not
confident that there are no nasty bugs lurking.
People are welcome to try it, but dont go out and buy one just yet.. :-)
And *DONT* use it on a mission-critical machine... This is ALPHA QUALITY!
|
| 10010 |
09-Aug-1995 |
dyson |
Fixed my usage of "asm" instead of "__asm" and "volatile" instead
of "__volatile". Note also that the original mods that were submitted
by me were as a result of a discussion between various FreeBSD contributors.
Submitted by: peter@haywire.dialix.com (Peter Wemm)
|
| 10004 |
08-Aug-1995 |
dyson |
Make the spl oriented inline functions less likely to allow
potentially volatile memory to be kept in registers during
the "call" (inline expansion.) Do the same for pmap_update.
|
| 9750 |
28-Jul-1995 |
jkh |
Merge in changes for VOXWARE 3.05
Submitted by: Amancio Hasty and Jim Lowe
|
| 9714 |
25-Jul-1995 |
bde |
Fix bogus constraint "i" that only worked with -O. The cases where it
didn't work are somewhat bogusly optimized away before the constraint
is checked. We still expect constants passed to inline functions to
remain constant, but if the compiler ever decides that they aren't
constant then it will just generate slightly slower code instead of
an error.
|
| 9578 |
19-Jul-1995 |
dg |
Rewrote memory sizing code to generally deal with holes in extended memory.
This code change should allow certain Compaq machines with a 128K hole
at 16MB to work.
|
| 9546 |
16-Jul-1995 |
phk |
Make the bootinfo structure visible from sysctl.
This can be used in libdisk to guess a better bios-geometry.
|
| 9507 |
13-Jul-1995 |
dg |
NOTE: libkvm, w, ps, 'top', and any other utility which depends on struct
proc or any VM system structure will have to be rebuilt!!!
Much needed overhaul of the VM system. Included in this first round of
changes:
1) Improved pager interfaces: init, alloc, dealloc, getpages, putpages,
haspage, and sync operations are supported. The haspage interface now
provides information about clusterability. All pager routines now take
struct vm_object's instead of "pagers".
2) Improved data structures. In the previous paradigm, there is constant
confusion caused by pagers being both a data structure ("allocate a
pager") and a collection of routines. The idea of a pager structure has
escentially been eliminated. Objects now have types, and this type is
used to index the appropriate pager. In most cases, items in the pager
structure were duplicated in the object data structure and thus were
unnecessary. In the few cases that remained, a un_pager structure union
was created in the object to contain these items.
3) Because of the cleanup of #1 & #2, a lot of unnecessary layering can now
be removed. For instance, vm_object_enter(), vm_object_lookup(),
vm_object_remove(), and the associated object hash list were some of the
things that were removed.
4) simple_lock's removed. Discussion with several people reveals that the
SMP locking primitives used in the VM system aren't likely the mechanism
that we'll be adopting. Even if it were, the locking that was in the code
was very inadequate and would have to be mostly re-done anyway. The
locking in a uni-processor kernel was a no-op but went a long way toward
making the code difficult to read and debug.
5) Places that attempted to kludge-up the fact that we don't have kernel
thread support have been fixed to reflect the reality that we are really
dealing with processes, not threads. The VM system didn't have complete
thread support, so the comments and mis-named routines were just wrong.
We now use tsleep and wakeup directly in the lock routines, for instance.
6) Where appropriate, the pagers have been improved, especially in the
pager_alloc routines. Most of the pager_allocs have been rewritten and
are now faster and easier to maintain.
7) The pagedaemon pageout clustering algorithm has been rewritten and
now tries harder to output an even number of pages before and after
the requested page. This is sort of the reverse of the ideal pagein
algorithm and should provide better overall performance.
8) Unnecessary (incorrect) casts to caddr_t in calls to tsleep & wakeup
have been removed. Some other unnecessary casts have also been removed.
9) Some almost useless debugging code removed.
10) Terminology of shadow objects vs. backing objects straightened out.
The fact that the vm_object data structure escentially had this
backwards really confused things. The use of "shadow" and "backing
object" throughout the code is now internally consistent and correct
in the Mach terminology.
11) Several minor bug fixes, including one in the vm daemon that caused
0 RSS objects to not get purged as intended.
12) A "default pager" has now been created which cleans up the transition
of objects to the "swap" type. The previous checks throughout the code
for swp->pg_data != NULL were really ugly. This change also provides
the rudiments for future backing of "anonymous" memory by something
other than the swap pager (via the vnode pager, for example), and it
allows the decision about which of these pagers to use to be made
dynamically (although will need some additional decision code to do
this, of course).
13) (dyson) MAP_COPY has been deprecated and the corresponding "copy
object" code has been removed. MAP_COPY was undocumented and non-
standard. It was furthermore broken in several ways which caused its
behavior to degrade to MAP_PRIVATE. Binaries that use MAP_COPY will
continue to work correctly, but via the slightly different semantics
of MAP_PRIVATE.
14) (dyson) Sharing maps have been removed. It's marginal usefulness in a
threads design can be worked around in other ways. Both #12 and #13
were done to simplify the code and improve readability and maintain-
ability. (As were most all of these changes)
TODO:
1) Rewrite most of the vnode pager to use VOP_GETPAGES/PUTPAGES. Doing
this will reduce the vnode pager to a mere fraction of its current size.
2) Rewrite vm_fault and the swap/vnode pagers to use the clustering
information provided by the new haspage pager interface. This will
substantially reduce the overhead by eliminating a large number of
VOP_BMAP() calls. The VOP_BMAP() filesystem interface should be
improved to provide both a "behind" and "ahead" indication of
contiguousness.
3) Implement the extended features of pager_haspage in swap_pager_haspage().
It currently just says 0 pages ahead/behind.
4) Re-implement the swap device (swstrategy) in a more elegant way, perhaps
via a much more general mechanism that could also be used for disk
striping of regular filesystems.
5) Do something to improve the architecture of vm_object_collapse(). The
fact that it makes calls into the swap pager and knows too much about
how the swap pager operates really bothers me. It also doesn't allow
for collapsing of non-swap pager objects ("unnamed" objects backed by
other pagers).
|
| 9343 |
28-Jun-1995 |
bde |
Fix standards conformance bugs in <signal.h>:
include/signal.h:
There was massive namespace pollution from including <sys/types.h>.
POSIX functions were declared even when _ANSI_SOURCE is defined.
sys.sys/signal.h:
NSIG was declared even if _ANSI_SOURCE or _POSIX_SOURCE is defined.
sig_atomic_t wasn't declared if _POSIX_SOURCE is defined.
Declare a typedef for signal handling functions and use it to
unobfuscate declarations and to avoid half-baked function types
that cause unwanted compiler warnings at certain warning levels.
Fix confusing comment about SA_RESTART.
sys/i386/include/signal.h:
This has to be included to get the declaration of sig_atomic_t even
when _ANSI_SOURCE is defined, so be more careful about polluting
the ANSI namespace.
Uniformize idempotency ifdefs.
|
| 9341 |
28-Jun-1995 |
bde |
Define macros _BSD_OFF_T_ and _BSD_PID_T_ suitable for use instead
of the typedefs off_t and pid_t when use of the latter would cause
namespace pollution. These macros are used like _BSD_VA_LIST_ and
aren't #undef'ed when the corresponding typedef is declared.
off_t is very machine-dependent and should never have been decided
in <sys/types.h> (its declaration is compiler-dependent). pid_t
isn't very machine-dependent, but this might change. `long' is
a wasteful type for it if longs are longer than ints.
Move the definition of _BSD_VA_LIST_ away from the comment that
suggests that it is #undefed when va_list is declared.
|
| 8876 |
30-May-1995 |
rgrimes |
Remove trailing whitespace.
|
| 8748 |
25-May-1995 |
dg |
Made "NMBCLUSTERS" calculation dynamic and fixed bogus use of "NMBCLUSTERS"
in machdep.c (it should use the global nmbclusters). Moved the calculation
of nmbclusters into conf/param.c (same place where nmbclusters has always
been assigned), and made the calculation include an extra amount based
on "maxusers". NMBCLUSTERS can still be overrided in the kernel config
file as always, but this change will make that generally unnecessary. This
fixes the "bug" reports from people who have misconfigured kernels seeing
the network hang when the mbuf cluster pool runs out.
Reviewed by: John Dyson
|
| 8521 |
14-May-1995 |
dg |
Added apersand constraint to make sure that the source and destination
registers aren't combined.
Reviewed by: Bruce Evans and David Greenman
Submitted by: John Dyson
|
| 8448 |
11-May-1995 |
bde |
Add variable `idelayed' and macros setdelayed() and schedsofttty()
to access it. setdelayed() actually ORs the bits in `idelayed' into
`ipending' and clears `idelayed'.
Call setdelayed() every (normal) clock tick to convert delayed
interrupts into pending ones.
Drivers can set bits in `idelayed' at any time to schedule an interrupt
at the next clock tick. This is more efficient than calling timeout().
Currently only software interrupts can be scheduled.
|
| 8446 |
11-May-1995 |
bde |
Add loadandclear(). It atomically loads a value from memory, clears the
value in memory and returns the original value.
|
| 8426 |
11-May-1995 |
wollman |
Make networking domains drop-ins, through the magic of GNU ld. (Some day,
there may even be LKMs.) Also, change the internal name of `unixdomain'
to `localdomain' since AF_LOCAL is now the preferred name of this family.
Declare netisr correctly and in the right place.
|
| 8265 |
04-May-1995 |
dg |
Correct the definition for the (unused) cpu_setstack().
|
| 7666 |
08-Apr-1995 |
joerg |
Update pcvt to 3.20 b24
|
| 7558 |
01-Apr-1995 |
joerg |
Update pcvt to 3.20b23
Submitted by: Hellmuth Michaelis <hm@altona.hamburg.com>
|
| 7430 |
28-Mar-1995 |
bde |
Add and move declarations to fix all of the warnings from `gcc -Wimplicit'
(except in netccitt, netiso and netns) that I didn't notice when I fixed
"all" such warnings before.
|
| 7403 |
26-Mar-1995 |
dg |
Removed declaration of pmap_changebit()...it is no longer exported.
Submitted by: John Dyson
|
| 7090 |
16-Mar-1995 |
bde |
Add and move declarations to fix all of the warnings from `gcc -Wimplicit'
(except in netccitt, netiso and netns) and most of the warnings from
`gcc -Wnested-externs'. Fix all the bugs found. There were no serious
ones.
|
| 6959 |
08-Mar-1995 |
ugen |
Remove redundant IORW definition..
because of this definition never ioctl's for sound
devices worked..For me this resulted also in loss of
snd1 device...
|
| 6914 |
05-Mar-1995 |
joerg |
Update to beta3.20/b22
|
| 6865 |
03-Mar-1995 |
dg |
Preserve reverse link integraty while doing the queue insertion.
|
| 6644 |
22-Feb-1995 |
jmz |
Put the joystick status in a struct {int x, y, b1, b2;} rather than in a
dummy array of 4 integers. Declare the struct in the header file and update
the man page.
|
| 6558 |
19-Feb-1995 |
gpalmer |
Bruces fixes for large filesystems
Submitted by: Bruce Evans <bde@zeta.org.au>
|
| 6512 |
17-Feb-1995 |
phk |
This is the latest version of the APM stuff from HOSOKAWA, I have looked
briefly over it, and see some serious architectural issues in this stuff.
On the other hand, I doubt that we will have any solution to these issues
before 2.1, so we might as well leave this in.
Most of the stuff is bracketed by #ifdef's so it shouldn't matter too much
in the normal case.
Reviewed by: phk
Submitted by: HOSOKAWA, Tatsumi <hosokawa@mt.cs.keio.ac.jp>
|
| 6503 |
16-Feb-1995 |
bde |
Fix syntax errors in #ifdefed out code.
|
| 6380 |
14-Feb-1995 |
sos |
First attempt to run linux binaries. This is only the changes needed to
the generic kernel. The actual emulator is a separate LKM. (not finished
yet, sorry).
Submitted by: sos@freebsd.org & sef@kithrup.com
|
| 6369 |
14-Feb-1995 |
phk |
Whoops! back out last commit partly.
|
| 6368 |
14-Feb-1995 |
phk |
YFfix.
|
| 6367 |
14-Feb-1995 |
phk |
susword -> systm.h
|
| 6347 |
13-Feb-1995 |
jkh |
The following patches are for the sound drivers. These changes will
add a an ioctl call to set the transfer block size (SNDCTL_DSP_SETBLKSIZE)
and add the select system call to the drivers. They also fix a problem with
the #EXCLUDE macros for the PAS-16 card.
Submitted by: Jim Lowe <james@blatz.cs.uwm.edu>
|
| 6323 |
12-Feb-1995 |
jkh |
Rename the local variable used by various macros outside the user's
namespace.
Reported-By: "Philippe Charnier" <charnier@lirmm.fr>
|
| 6219 |
06-Feb-1995 |
jkh |
The very minimum driver required to support a Video Spigot. See the
copyright notices in the code for information on where to go to pick
up additional useful bits.
Submitted by: Jim Lowe <james@blatz.cs.uwm.edu>
|
| 6195 |
05-Feb-1995 |
jkh |
Add pcvt's header files.
Submitted by: hm
|
| 6178 |
04-Feb-1995 |
se |
Moved "#include <pci/pcivar.h>" from "usr.sbin/lsdev/i386.c"
to "/sys/i386/include/devconf.h", where it really belongs.
|
| 6165 |
03-Feb-1995 |
bde |
Don't define CLK_TCK here.
Uniformize idempotency ifdef.
|
| 6162 |
03-Feb-1995 |
bde |
Define _BSD_CLK_TCK_ and _BSD_CLOCKS_PER_SEC_ to support correct
definitions of CLK_TCK and CLOCKS_PER_SEC.
|
| 6120 |
02-Feb-1995 |
jkh |
Since the pci directory has moved, this required updating.
|
| 5994 |
28-Jan-1995 |
sos |
Third round in syscons update.
Display update method changed, now allways write in memory buffer,
then periodically update physical display.
Speed improvements (now > 5 times faster than the old syscons).
History now circular buffer, with changeable size.
History scroll by up/down line, up/down page, home and end.
Backtab proberly implemented.
Now space for 96 function keys, 63 allocated standard, default now
SCO/SYSV compat again as in the old days.
New keyboard definition files ~share/syscons/keymaps/*
Misc fixes for old "hacks" that broke SCO/SYSV compat.
More that I forgot before writing this...
|
| 5937 |
26-Jan-1995 |
ache |
DOn't use hardcode values for L_FN & L_SCR
|
| 5934 |
26-Jan-1995 |
ache |
Increase NUM_FKEYS to 65
|
| 5908 |
25-Jan-1995 |
bde |
Load the kernel symbol table in the boot loader and not at compile time.
(Boot with the -D flag if you want symbols.)
Make it easier to extend `struct bootinfo' without losing either forwards
or backwards compatibility.
ddb_aout.c:
Get the symbol table from wherever the loader put it.
Nuke db_symtab[SYMTAB_SPACE].
boot.c:
Enable loading of symbols. Align them on a page boundary. Add printfs
about the symbol table sizes.
Pass the memory sizes to the kernel.
Fix initialization of `unit' (it got moved out of the loop).
Fix adding the bss size (it got moved inside an ifdef).
Initialize serial port when RB_SERIAL is toggled on.
Fix comments.
Clean up formatting of recently added code.
io.c:
Clean up formatting of recently added code.
netboot/main.c, machdep.c, wd.c:
Change names of bootinfo fields.
LINT:
Nuke SYMTAB_SPACE.
Fix comment about DODUMP.
Makefile.i386:
Nuke use of dbsym.
Exclude gcc symbols from kernel unless compiling with -g.
Remove unused macro.
Fix comments and formatting.
genassym.c:
Generate defines for some new bootinfo fields. Change names of old ones.
locore.s:
Copy only the valid part of the `struct bootinfo' passed by the loader.
Reserve space for symbol table, if any.
machdep.c:
Check the memory sizes passed by the loader, if any. Don't use them yet.
bootinfo.h:
Add a size field so that we can resolve some mismatches between the loader
bootinfo and the kernel boot info. The version number is not so good for
this because of historical botches and because it's harder to maintain.
Add memory size and symbol table fields. Change the names of everything.
Hacks to save a few bytes:
asm.S, boot.c, boot2.S:
Replace `ouraddr' by `(BOOTSEG << 4)'.
boot.c:
Don't statically initialize `loadflags' to 0. Disable the "REDUNDANT"
code that skips the BIOS variables. Eliminate `total'. Combine some
more printfs.
boot.h, disk.c, io.c, table.c:
Move all statically initialzed data to table.c.
io.c:
Don't put the A20 gate bits in a variable.
|
| 5904 |
25-Jan-1995 |
jmz |
ioctls for the joystick driver
|
| 5853 |
24-Jan-1995 |
ache |
Fix stdarg.h for GNU C using builtin_next_arg
|
| 5838 |
24-Jan-1995 |
dg |
Moved various pmap 'bit' test/set functions back into real functions; gcc
generates better code at the expense of more of it.
Submitted by: John Dyson
|
| 5809 |
23-Jan-1995 |
dg |
Decrease MCLBYTES from 4k back to 2k. It isn't likely that we'll be doing
page flipping anytime soon and 4k just wastes memory. Performance via the
looback interface will decrease slightly by this change. Idealy, we need
buffers that can have variable sizes, but this requires a rewrite of far
too much code at the moment.
|
| 5747 |
20-Jan-1995 |
sos |
Second round in syscons update:
Support for pseudo graphic mouse cursor (not complete yet)
Some cheap speed fixes.
More cleanups.
Call ourselves scxxxx finally.
|
| 5603 |
14-Jan-1995 |
bde |
Fix security holes in sigreturn(), ptrace() and procfs. sigreturn()
attempted to check for insecure and fatal eflags and segment
selectors, but missed many cases and got the IOPL check back to
front. The other syscalls didn't check at all.
sys_process.c, machdep.c:
Only allow PT_WRITE_U to write to the registers (ordinary and FP).
psl.h, locore.s, machdep.c:
Eliminate PSL_MBZ, PSL_MBO and PSL_USERCLR. We are not supposed
to assume anything about the reserved bits. Use PSL_USERCHANGE
and PSL_KERNEL instead. Rename PSL_USERSET to PSL_USER.
exception.s:
Define a private label for use by doreti when returning to user
mode fails.
machdep.c:
In syscalls, allow changing only the eflags that can be changed on
486's in user mode (no longer attempt to allow benign IOPL changes;
allow changing the nasty PSL_NT; don't allow changing the i586
bits).
Don't attempt to check all the cases involving invalid selectors
and %eip's. Just check for privilege violations and let the invalid
things cause a trap.
procfs_machdep.c:
Call the ptrace register functions to do all the work for reading
and writing ordinary registers and for single stepping.
trap.c:
Ignore traps caused by PSL_NT being set. Previously, users could
cause a fatal trap in user mode by setting PSL_NT and executing an
iret, and a fatal trap in kernel mode by setting PSL_NT and making
a syscall. PSL_NT was cleared too late and not in enough modes to
fix the problem.
Make all traps in user mode (except T_NMI) nonfatal.
Recover from traps caused by attempting to load invalid user
registers in doreti by restarting the traps so that they appear to
occur in user mode.
---
Fix bogons that I noticed while fixing the above:
psl.h:
Fix some comments.
Uniformize idempotency ifdef.
exception.s, machdep.c:
Remove rsvd[0-14]. rsvd0 hasn't been reserved since the 486 came
out. Replace rsvd0 by `align'. rsvd[0-11] used wrong (magic
non-unique) trap numbers. Replace rsvd[1-14] by rsvd.
locore.s:
Enable alignment check flag on 486's and 586's.
machdep.c:
Use a better type for kstack[].
Use TFREGP() to find the registers.
Reformat ptrace functions from SEF to something closer to KNF.
procfs_machdep.c:
The wrong pointer to the registers got fixed as a side effect.
Implement reading and writing of FP registers.
/proc/*/*regs now work (only) for processes that are in memory.
Clean up comments.
trap.c, trap.h:
Remove unused trap types.
|
| 5594 |
14-Jan-1995 |
bde |
Enable define of CR0_AM to prepare for implementing alignment checking.
Uniformize idempotency ifdef.
|
| 5593 |
14-Jan-1995 |
bde |
Declare a real `struct fpreg' to prepare for implementing reading and
writing of FP regs for procfs.
Uniformize idempotency ifdef.
|
| 5592 |
14-Jan-1995 |
bde |
Remove reference to impossible trap type T_KDBTRAP. We don't support
watchpoints.
Uniformize idempotency ifdef.
|
| 5536 |
12-Jan-1995 |
sos |
First round in syscons update. Several new features has been added:
No kernel config options anymore besides keyboard language layout.
Virtual consoles are now dynamically allocated, no NCONS anymore.
Software cursor blinking/nonblinking.
Visual bell for laptops (don't beep at meetings :-).
Cursor/bell default type setable via config "flags" instead of as defines.
Cursor/bell type setable via ioctl's.
New video modes 80x30 80x60 for some laptops, and those with multisync monitors.
Scroll-lock history (length currently fixed at 100 lines).
Lots of cleanups, some only commented out for now (will goaway soon).
Support for new features in vidcontrol/kbdcontrol.
Updated manpages.
|
| 5455 |
09-Jan-1995 |
dg |
These changes embody the support of the fully coherent merged VM buffer cache,
much higher filesystem I/O performance, and much better paging performance. It
represents the culmination of over 6 months of R&D.
The majority of the merged VM/cache work is by John Dyson.
The following highlights the most significant changes. Additionally, there are
(mostly minor) changes to the various filesystem modules (nfs, msdosfs, etc) to
support the new VM/buffer scheme.
vfs_bio.c:
Significant rewrite of most of vfs_bio to support the merged VM buffer cache
scheme. The scheme is almost fully compatible with the old filesystem
interface. Significant improvement in the number of opportunities for write
clustering.
vfs_cluster.c, vfs_subr.c
Upgrade and performance enhancements in vfs layer code to support merged
VM/buffer cache. Fixup of vfs_cluster to eliminate the bogus pagemove stuff.
vm_object.c:
Yet more improvements in the collapse code. Elimination of some windows that
can cause list corruption.
vm_pageout.c:
Fixed it, it really works better now. Somehow in 2.0, some "enhancements"
broke the code. This code has been reworked from the ground-up.
vm_fault.c, vm_page.c, pmap.c, vm_object.c
Support for small-block filesystems with merged VM/buffer cache scheme.
pmap.c vm_map.c
Dynamic kernel VM size, now we dont have to pre-allocate excessive numbers of
kernel PTs.
vm_glue.c
Much simpler and more effective swapping code. No more gratuitous swapping.
proc.h
Fixed the problem that the p_lock flag was not being cleared on a fork.
swap_pager.c, vnode_pager.c
Removal of old vfs_bio cruft to support the past pseudo-coherency. Now the
code doesn't need it anymore.
machdep.c
Changes to better support the parameter values for the merged VM/buffer cache
scheme.
machdep.c, kern_exec.c, vm_glue.c
Implemented a seperate submap for temporary exec string space and another one
to contain process upages. This eliminates all map fragmentation problems
that previously existed.
ffs_inode.c, ufs_inode.c, ufs_readwrite.c
Changes for merged VM/buffer cache. Add "bypass" support for sneaking in on
busy buffers.
Submitted by: John Dyson and David Greenman
|
| 5428 |
07-Jan-1995 |
jkh |
Gunther Schadow <gusw@fub46.zedat.fu-berlin.de>'s
driver for the Genius GS-4500 hand scanner.
Submitted by: gusw@fub46.zedat.fu-berlin.de
|
| 5378 |
04-Jan-1995 |
dg |
Corrected the list of volatile registers for outsb, outsw, and outsl.
This bug caused my ethernet driver to break, among other things no doubt.
|
| 5350 |
03-Jan-1995 |
bde |
Replace sv_ex_tw by padding (it is no longer used; the tag word in sv_env
is valid).
Expand comment about bogus padding for emulators.
Update prototpe for npxinit().
|
| 5290 |
30-Dec-1994 |
bde |
spl.h:
Don't calculate imask for splstatclock() every call.
Remove declaration of nonexistent variable `high_imask'.
Sort declarations of imasks and spl's.
|
| 5143 |
18-Dec-1994 |
dg |
Add two more page table pages to keep 64MB machines happy.
|
| 4931 |
03-Dec-1994 |
bde |
Disable CLKF_BASEPRI() again. I forgot to edit an unwanted change out of
the diffs for the previous commit.
|
| 4929 |
03-Dec-1994 |
bde |
i386/exception.s,
Keep track of interrupt nesting level. It is normally 0
for syscalls and traps, but is fudged to 1 for their exit
processing in case they metamorphose into an interrupt
handler.
i386/genassym.c;
Remove support for the obsolete pcb_iml and pcb_cmap2.
Add support for pcb_inl.
i386/swtch.s:
Fudge the interrupt nesting level across context switches and in
the idle loop so that the work for preemptive context switches
gets counted as interrupt time, the work for voluntary context
switches gets counted mostly as system time (the part when
curproc == 0 gets counted as interrupt time), and only truly idle
time gets counted as idle time.
Remove obsolete support (commented out and otherwise) for pcb_iml.
Load curpcb just before curproc instead of just after so that
curpcb is always valid if curproc is. A few more changes like
this may fix tracing through context switches.
Remove obsolete function swtch_to_inactive().
include/cpu.h:
Use the new interrupt nesting level variable to implement a
non-fake CLF_INTR() so that accounting for the interrupt state
works.
You can use top, iostat or (best) an up to date systat to see
interrupt overheads. I see the expected huge interrupt overheads
for ISA devices (on a 486DX/33, about 55% for an IDE drive
transferring 1250K/sec and the same for a WD8013EBT network card
transferring 1100K/sec). The huge interrupt overheads for serial
devices are unfortunately normally invisible.
include/pcb.h:
Remove the obsolete pcb_iml and pcb_cmap2. Replace them by
padding to preserve binary compatibility.
Use part of the new padding for pcb_inl.
isa/icu.s:
isa/vector.s:
Keep track of interrupt nesting level.
|
| 4911 |
02-Dec-1994 |
wollman |
This commit was generated by cvs2svn to compensate for changes in r4910,
which included commits to RCS files with non-trunk default branches.
|
| 4818 |
26-Nov-1994 |
phk |
Declare "extern int bootverbose", so that device-drivers and others
easily can find it.
|
| 4599 |
18-Nov-1994 |
phk |
Declare the bootinfo structure in the kernel.
|
| 4598 |
18-Nov-1994 |
phk |
Add space for the bios-geometry in the bootinfo struct.
|
| 4514 |
15-Nov-1994 |
bde |
Add prototype for Debugger().
|
| 4501 |
15-Nov-1994 |
bde |
Make gdt_segs[] public again for APM.
Make ldt[] public again and restore currentldt and _default_ldt for
USER_LDT.
|
| 4479 |
14-Nov-1994 |
bde |
Rewrite almost everything.
Alphabetize.
Write all i/o functions in sleep so that we don't use anything from
NetBSD.
Restore the correct type of u_int for ports. This saves a whole cycle
per i/o on 486's.
Change `inline' back to __inline to avoid compiler warnings with
-Wreally-all.
Don't implement bdb() unless BDE_DEBUGGER is defined. Declare bdb_exists
outside the function to avoid hundreds of compiler warnings.
Let the compiler pick the register in asms if possible.
Implement ffs() using inline asm(). gcc provides a slightly different
one. It was broken in gcc-2.4.5 but works now. Declaring a correct
version inline ensures getting a correct version. FreeBSD-1.1.5 has
an slow inline version but FreeBSD-2.0 has a library version (which
probably never gets used).
Do inb() and outb() without using %edx for constant ports below 0x100.
Remove casts to the same type in queue functions.
Declare prototypes for everything implemented i386/*.s and also for
everything that is normally implemented as an inline here (I don't
like the current complete dependency on gcc). Ifdef out the prototypes
that are declared elsewhere. THere should be a separate header to
declare things implemented in i386/*.s, but then it would be harder
to override declarations with inlines.
${UII}
|
| 4473 |
14-Nov-1994 |
bde |
Remove 1.5+K of bloat for unused idt entries.
Partly support BDE_DEBUGGER. Still broken by conflict with APM. Does
nothing if BDE_DEBUGGER is not defined.
Clean up prototypes and data declarations. Declare most of the segment
functions that are implemented in support.s. Make data private in
machdep.c if possible.
Parenthesize expressions in macros properly!
${Uniformize idempotency ifdef}.
|
| 4472 |
14-Nov-1994 |
bde |
Remove extra idempotency ifdef and uniformize the other one.
Comment about support for 4 different spellings of KERNEL.
|
| 4471 |
14-Nov-1994 |
bde |
Declare inline functions as __inline and with new-style parameter lists
to avoid compiler warnings.
Clean up prototypes: alphabetize; don't use redundant `extern' or
meaningless `extern inline'.
Uniformize idempotency ifdef.
|
| 4319 |
09-Nov-1994 |
bde |
Don't declare DELAY() here. Callers should include <machine/clock.h>.
|
| 4175 |
05-Nov-1994 |
bde |
Declare all functions exported by the npx driver.
Uniformize idempotency ifdefs.
|
| 4174 |
05-Nov-1994 |
bde |
Declare the full uglyness of the interfaces to the clock driver (except
things declared in machine-independent files).
|
| 4173 |
05-Nov-1994 |
bde |
Disable the direct call from hardclock() to softclock(). Support
for it is incomplete and buggy. There is no problem unless Xintr0()
is reentered or should be reentered, but high clock interrupt
frequencies for pcaudio cause Xintr0() to be reentered (or clock
ticks to be lost when Xintr0() should have been reentered but
wasn't), and we lose little by delaying the call to softclock().
Move declarations related to the clock driver to clock.h.
Move declarations related to the npx driver to npx.h.
Clean up the remaining declarations.
|
| 4131 |
04-Nov-1994 |
jkh |
__386BSD__ -> __FreeBSD__
I know that many of these entries are bogus and need to be revisited,
but let's get the tree working again for now and then do a pass through
looking at all the __FreeBSD__ entries, shall we?
|
| 4099 |
02-Nov-1994 |
se |
Submitted by: Wolfgang Stanglmeier <wolf@dentaro.GUN.de>
Modifications required for PCI support.
|
| 4009 |
30-Oct-1994 |
joerg |
Included the command definition for FD_DEBUG.
This way, it's possible for a user to activate/deactivate floppy driver
debugging, even if (s)he doesn't like the overhead of running DDB.
Since some ppl tend to have problems with their drives, this might be
valuable for investigations.
|
| 3816 |
23-Oct-1994 |
wollman |
Finished device configuration database work for all ISA devices (except `ze')
and all SCSI devices (except that it's not done quite the way I want). New
information added includes:
- A text description of the device
- A ``state''---unknown, unconfigured, idle, or busy
- A generic parent device (with support in the m.i. code)
- An interrupt mask type field (which will hopefully go away) so that
. ``doconfig'' can be written
This requires a new version of the `lsdev' program as well (next commit).
|
| 3722 |
19-Oct-1994 |
bde |
Fix the test for the code segment being the usual one. Unusual code
segments can still cause panics. Their pc is converted to 0 and 0
is only checked for in one place before use.
|
| 3713 |
19-Oct-1994 |
wollman |
Add support for devconf to a large number of device drivers, and do
the right thing in dev_goawayall() when kdc_goaway is null.
|
| 3704 |
19-Oct-1994 |
wollman |
Move some declarations to more appropriate header files.
|
| 3682 |
18-Oct-1994 |
ache |
Remove CPU_COLORDISP, GIO_COLOR now exists
|
| 3676 |
17-Oct-1994 |
wollman |
Add new definitions for lsdev.
|
| 3671 |
17-Oct-1994 |
sos |
Added more SCO compat ioctl's.
|
| 3638 |
16-Oct-1994 |
wollman |
Machine-dependent parts of device configuration table.
|
| 3625 |
15-Oct-1994 |
ache |
CPU_COLORDISP sysctl added for console display type
|
| 3488 |
10-Oct-1994 |
phk |
Cosmetics. Added a prototype.
|
| 3437 |
08-Oct-1994 |
phk |
Added prototypes.
|
| 3385 |
06-Oct-1994 |
rgrimes |
1. bootinfo.h defines the structure passed in to the kernel by the
new boot code.
|
| 3365 |
04-Oct-1994 |
ache |
CPU_DISRTCSET added to disable resettodr(), needed in adjkerntz -i,
per Bruce suggestion
|
| 3315 |
02-Oct-1994 |
phk |
Avoid ddb getting a panic if the code-segment isn't the usual one...
|
| 3307 |
02-Oct-1994 |
phk |
apm_bios.h: removed the equiv-stuff. Not needed now that the kernel module
works correctly.
clock.h & reg.h: prototypes.
|
| 3272 |
01-Oct-1994 |
dg |
Added Cortex-I Frame Grabber by Paul S. LaFollette, Jr.
Submitted by: Paul S. LaFollette, Jr.
|
| 3264 |
01-Oct-1994 |
dg |
Added $Id$
|
| 3263 |
01-Oct-1994 |
dg |
Woops, missed these two files; part of HOSOKAWA Tatsumi's APM support.
|
| 3258 |
01-Oct-1994 |
dg |
Laptop Advanced Power Management support by HOSOKAWA Tatsumi.
Submitted by: HOSOKAWA Tatsumi
|
| 3256 |
01-Oct-1994 |
swallace |
Use Voxware's new 2.90 soundcard.h.
NOTE: 2.9 is backwards compatable with programs compiled with older
soundcard.h, but new programs compiled with 2.9 will not work on pre-2.9
sound drivers.
|
| 3187 |
29-Sep-1994 |
sos |
Changed header sligthly.
|
| 3144 |
27-Sep-1994 |
dg |
First round of changes to get the sound code working in 2.0.
|
| 3102 |
25-Sep-1994 |
dg |
Inlined ins/outs functions.
Obtained from: NetBSD
|
| 3099 |
25-Sep-1994 |
dg |
Undo last change: the ins/outs functions DO NOT return a pointer!
|
| 3098 |
25-Sep-1994 |
phk |
While in the real world, I had a bad case of being swapped out for a lot of
cycles. While waiting there I added a lot of the extra ()'s I have, (I have
never used LISP to any extent). So I compiled the kernel with -Wall and
shut up a lot of "suggest you add ()'s", removed a bunch of unused var's
and added a couple of declarations here and there. Having a lap-top is
highly recommended. My kernel still runs, yell at me if you kernel breaks.
|
| 3095 |
25-Sep-1994 |
joerg |
Copied over the transfer speed definitions from sys/i386/isa/fdreg.h.
This is needed for having the fdformat program no longer searching
non-public include paths.
|
| 3058 |
24-Sep-1994 |
dg |
Shuffled macros and definitions around to facilitate architecture
independance.
|
| 3021 |
23-Sep-1994 |
dg |
Increased SHMMAXPGS from 512 to 1024 now that there is plenty of kernel
virtual memory.
|
| 2941 |
20-Sep-1994 |
bde |
Don't provide bogus source operands in some asms. This probably shouldn't
matter, but similar bogusness in npx.c causes compiling without -O to fail.
Use __volatile in all asms.
Parenthesize macro args.
Change the names of the macros to avoid namespace pollution.
Remove unnecessary "#ifdef __i386__".
Sort #defines.
Add comments.
|
| 2918 |
20-Sep-1994 |
bde |
Remove the alias splnone() for spl0(). It was used only once.
|
| 2914 |
20-Sep-1994 |
ache |
resettodr() now exists, enable it
|
| 2867 |
18-Sep-1994 |
bde |
Replace `unsigned' by `u_int' so that it is not necessary to include
<sys/types.h> before including this header. This header is now
idempotent.
Uniformize idempotency #ifdef.
|
| 2866 |
18-Sep-1994 |
bde |
Clean up #includes. <machine/spl.h> has to be included by almost everything
in case an spl inline is used, so this is not the place to include it.
Uniformize idempotency #ifdef.
|
| 2858 |
18-Sep-1994 |
wollman |
Redo Kernel NTP PLL support, kernel side.
This code is mostly taken from the 1.1 port (which was in turn taken from
Dave Mills's kern.tar.Z example). A few significant differences:
1) ntp_gettime() is now a MIB variable rather than a system call. A few
fiddles are done in libc to make it behave the same.
2) mono_time does not participate in the PLL adjustments.
3) A new interface has been defined (in <machine/clock.h>) for doing
possibly machine-dependent things around the time of the clock update.
This is used in Pentium kernels to disable interrupts, set `time', and
reset the CPU cycle counter as quickly as possible to avoid jitter in
microtime(). Measurements show an apparent resolution of a bit more than
8.14usec, which is reasonable given system-call overhead.
|
| 2838 |
17-Sep-1994 |
dg |
Updated driver to the 1.1.5 version:
date: 1994/05/22 12:35:38; author: joerg; state: Exp; lines: +6 -6
First round of floppy changes. Try making `fd' more robust.
New features:
. ioctl command for setting the drive type (density etc.); restricted
to the super-user
. ioctl for getting/seting `drive options'; currently only option
is FDOPT_NORETRY: inhibit the usual retries; used when verifying
a newly formatted track
Fixes:
. function prototypes
. made all internal functions `static'
. cleaned up & corrected .h files
. restructured, to make the chaotic function sequence more rational
. compiled with -Wall, and cleared all warnings
. introduced a mirror for the (write-only) `digital output register',
to avoid the current kludge
. device probing completed by seeking/recalibrating, and looking
for track 0 being found
. holding the controller down in reset state while it is idle (and
thus saving allot of headaches)
. make requests fail that are not a multiple of the (physical)
sector size
. removed the fixed physical sector size (512 bytes), allowing for any
size the controller could handle (128/256/512/1024 bytes)
. replaced some silly messages
. fixed the TRACE* macro usage, debugging reports should be complete
now again (debugging output is HUGE! though)
. removed fd_timeout for SEEK command; seeks are always reported by
the controller to succeed, since the `success' only refers to the
controller's idea of success - there is no hardware line to tell about
the seek end (other than the `track 0' line)
. catch SENSEI's that report about a `terminated due to READY changed'
status - could happen after a controller reset
. converted ``hz / <something>'' divide operations to divisors that are
powers of two, so gcc can optimize them into shifts
. write/format operations are checked against a write-protected medium
now *prior* starting the operation
. error reports of `invalid command' and `wrong cylinder' will cause
shortcuts in the retrier() now
. fixed a bug in the retrier() causing bogus block numbers to be reported
. fdformat() does care for errors now
Known Bugs:
. no attempts have been made (yet) to improve the performance
. sometimes, bogus ``seek/recalib failed'' messages are logged; this
is still a bug in the driver, but it's not harmful since it's
usually caught by the retrier()
Reviewed by:
Submitted by:
Obtained from:
|
| 2826 |
16-Sep-1994 |
dg |
Removed inclusion of pio.h and cpufunc.h (cpufunc.h is included from
systm.h). Merged functionality of pio.h into cpufunc.h. Cleaned up some
related code.
|
| 2824 |
16-Sep-1994 |
jkh |
Deal with outw being defined - the declaration clashes.
|
| 2819 |
16-Sep-1994 |
ache |
CPU_ADJKERNTZ added for resettodtr()
|
| 2804 |
15-Sep-1994 |
paul |
Include pio.h so that all those drivers that only include cpufunc.h
get the faster io macros/inline code rather than call the routines
in support.s
This whole area needs some going over.....
|
| 2801 |
15-Sep-1994 |
paul |
Added MCOUNT_ENTER and MCOUNT_EXIT macros to profile.h
Removed inb function since it's more correctly in pio.h
Copied write_eflags and read_eflags over from npx.c
(Some changes to the macros suggested by Bruce were not made at this
time since his suggestions probably apply to all the macros and
these inlined/macro definitions need a lot of cleaning up at some
point in the future.)
Reviewed by: Bruce
|
| 2783 |
15-Sep-1994 |
sos |
Added support for many more videomodes, including graphic modes up til
320x200 256col VGA. This is nessesary for the iBCS stuff to work right.
(And we get the benefit of more video modes). Uses the videocard BIOS
to optain mode tables.
Added a "green" saver, switches off the syncs for "green" monitors.
Reviewed by:
Submitted by:
Obtained from:
|
| 2689 |
12-Sep-1994 |
dg |
Eliminated a whole pile of ancient (we're taking 4.3BSD) VM system
related #define constants. Corrected incorrect VM_MAX_KERNEL_ADDRESS.
Reviewed by: John Dyson
|
| 2647 |
10-Sep-1994 |
csgr |
Change "asm" to "__asm" - makes it possible to compile code with
"-ansi" compiler switch set.
|
| 2606 |
09-Sep-1994 |
dfr |
Added the psm driver from 1.1.5.
Submitted by: dfr
|
| 2580 |
08-Sep-1994 |
bde |
Quote the first arg to _IO(). Not quoting it didn't matter because
this file is never used.
Uniformize use of idempotence identifier.
|
| 2579 |
08-Sep-1994 |
bde |
Get all the definitions from DEFS.h and not directly from asmacros.h
if KERNEL is not defined. lib/msun/i387/*.S include asmacros.h to
get the definitions of ENTRY(), etc. This is bogus since asmacros.h
is only supposed to give definitions suitable for the kernel. The
current definitions for the kernel almost worked but are missing
the ".type" declarations. This caused the linker to print warnings
about doubtful relocations for almost anything linked to libm[sun].
Uniformize name and use of idempotence identifier.
|
| 2578 |
08-Sep-1994 |
bde |
Remove <machine/eflags.h> and all dependencies on it. eflags.h is just
the Mach/i386 version of the BSD/vax(?) <machine/psl.h>. The Mach
version has slightly better names for many macros but is now out of
date and little used. It was originally used even less (for spelling
PSL_T as EFL_TF in <machine/db_machdep.h>).
|
| 2497 |
04-Sep-1994 |
dg |
Improved some comments.
|
| 2495 |
04-Sep-1994 |
pst |
Detect if we're running on a Cyrix 486DLC and enable automatic cache
negation whenever we access memory between 640k and 1M.
Original code from NetBSD 1.0-BETA. The exact origins are unclear but
Theo de Raadt, Charles, and Michael V. may have contributed to it.
Submitted by: pst
|
| 2455 |
02-Sep-1994 |
dg |
Removed all vestiges of tlbflush(). Replaced them with calls to pmap_update().
Made pmap_update an inline assembly function.
|
| 2440 |
01-Sep-1994 |
dg |
Got rid of some old, unused junk.
|
| 2246 |
23-Aug-1994 |
dg |
Corrected some comments regarding ptes/pdes.
|
| 2245 |
23-Aug-1994 |
paul |
Re-enabled inlining of inb.
Changed u_int_inb to just inb and deleted define.
The code generated is identical to that generated with the cast so
the problem was obviously fixed at some point after gcc 1.4
Reviewed by:
Submitted by:
|
| 2244 |
23-Aug-1994 |
paul |
I've disabled this piece of code since it's what's
hosing syscons. Doesn anyone know anything about this
or can we just delete it now?
/*
* This roundabout method of returning a u_char helps stop gcc-1.40 from
* generating unnecessary movzbl's.
*/
#ifdef disable_for_gcc-2_6_0
#define inb(port) ((u_char) u_int_inb(port))
#endif
static inline u_int
u_int_inb(u_int port)
{
u_char data;
/*
* We use %%dx and not %1 here because i/o is done at %dx and
not at
* %edx, while gcc-2.2.2 generates inferior code (movw instead
of movl)
* if we tell it to load (u_short) port.
*/
__asm __volatile("inb %%dx,%0" : "=a" (data) : "d" (port));
return data;
}
Reviewed by:
Submitted by:
|
| 2166 |
21-Aug-1994 |
paul |
Made idempotent.
Reviewed by:
Submitted by:
|
| 2123 |
19-Aug-1994 |
jkh |
1. Make this idempotent.
2. Hack.
Hack is to define RCSID() to null macro so that new msun stuff
will compile. This does NOT belong here, and I DON'T want it to
stay, I just need to put this here for now to enable msun and we need
to talk about what our RCSID story is supposed to be. We talked about
supporting RCSID() one day, and everyone seemed to like the idea
reasonably well of making it a macro you could just no-op this way,
but we never did anything. Now I see that JTCs code has it and I'm
loath to remove it or do anything until we've discussed it some more.
Well, so how about it? What's our story vis-a-vis RCSID() going to
be?
Submitted by: jkh
|
| 2112 |
18-Aug-1994 |
wollman |
Fix up some sloppy coding practices:
- Delete redundant declarations.
- Add -Wredundant-declarations to Makefile.i386 so they don't come back.
- Delete sloppy COMMON-style declarations of uninitialized data in
header files.
- Add a few prototypes.
- Clean up warnings resulting from the above.
NB: ioconf.c will still generate a redundant-declaration warning, which
is unavoidable unless somebody volunteers to make `config' smarter.
|
| 2086 |
17-Aug-1994 |
sos |
Updated to latest version from 1.1.5.1+
Reviewed by:
Submitted by:
|
| 2074 |
15-Aug-1994 |
wollman |
Enable use of the RTC chip for the statistical clock. While this does
not provide the full accuracy of a randomized statistical clock, it does
provide greater accuracy than the previous method, while not significantly
increasing overhead. It also provides profiling support at 1024 Hz.
You must re-compile config before making a new kernel, or you will end
up with unresolved symbols.
Reviewed uy: Bruce evans said it worked for him.
|
| 2071 |
14-Aug-1994 |
ats |
Submitted by: Bruce Evans
Delete the ifdef GPL_EMULATE case here and made the padding work for
both types of emulators so that there is no longer a need to compile
ps and friends new if you are using the GPL math emulator instead the
normal one.
|
| 2056 |
13-Aug-1994 |
wollman |
Change all #includes to follow the current Berkeley style. Some of these
``changes'' are actually not changes at all, but CVS sometimes has trouble
telling the difference.
This also includes support for second-directory compiles. This is not
quite complete yet, as `config' doesn't yet do the right thing. You can
still make it work trivially, however, by doing the following:
rm /sys/compile
mkdir /usr/obj/sys/compile
ln -s M-. /sys/compile
cd /sys/i386/conf
config MYKERNEL
cd ../../compile/MYKERNEL
ln -s /sys @
rm machine
ln -s @/i386/include machine
make depend
make
|
| 2028 |
11-Aug-1994 |
jkh |
Change outb() as per Bruce's instructions so that it doesn't explicitly
try to pass its argument in the ax register.
Reviewed by:
Submitted by:
|
| 1998 |
10-Aug-1994 |
wollman |
Add back in CPU detection copde from 1.1.5. As an added bonus, the
hw.model MIB variable is now declared correctly.
|
| 1977 |
09-Aug-1994 |
jkh |
Merge in the necessary bits from 1.1.5.1 to make exec.h and reloc.h
happy campers again (e.g. match our own exec format). This should
make ld happy.
Submitted by: jkh
|
| 1862 |
05-Aug-1994 |
wollman |
Delete redundant #ifdef __i386__, be consistent about idempotency
protection.
Submitted by: Bruce Evans
|
| 1837 |
04-Aug-1994 |
dg |
Inlined insque and remque.
|
| 1834 |
04-Aug-1994 |
wollman |
Move ieeefp.h over, and put it in the correct subdirectory this time.
Submitted by: Andrew Moore
|
| 1817 |
02-Aug-1994 |
dg |
Added $Id$
|
| 1690 |
06-Jun-1994 |
dg |
trap.c:
Vastly improved trap.c from me. This rewritten version has a variety of
features, amoung them: higher performance and much higher code quality.
support.s, cpufunc.h:
No longer use gs override to enforce range limits - compare directly
against VM_MAXUSER_ADDRESS instead. The old way caused problems in
preserving the gs selector...and this method is just as fast or faster.
|
| 1549 |
25-May-1994 |
rgrimes |
The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch.
Reviewed by: Rodney W. Grimes
Submitted by: John Dyson and David Greenman
|
| 1544 |
25-May-1994 |
rgrimes |
This commit was generated by cvs2svn to compensate for changes in r1543,
which included commits to RCS files with non-trunk default branches.
|
| 1525 |
20-May-1994 |
sos |
Added prober Id string
|
| 1432 |
29-Apr-1994 |
gclarkii |
Deleted on ifdef dontdef
Added ifdef for GPL_MATH_EMULATE so we get the extra padding that is needed
in the save87 struct.
|
| 1402 |
23-Apr-1994 |
ache |
Sound driver updated to version 2.5
|
| 1387 |
21-Apr-1994 |
sos |
New file for pcaudio device driver
|
| 1345 |
07-Apr-1994 |
ache |
Fix arguments of CONS_GETINFO
|
| 1339 |
06-Apr-1994 |
csgr |
Changes to lpt driver:
- ansi prototypes in lpt.c
- a bit of tidying in lpt.c
- ioctl in lpt.c for switching between polling and using interrupts
- added lpt.h - needed for ioctl to allow switching between polling
and interrupt-driven modes.
|
| 1334 |
04-Apr-1994 |
wollman |
First pass at adding locale support. This code only deals with the LC_CTYPE
class of locale data, but could be extended to handle other locale
classes, as well as message catalogues and other non-locale i18n
support.
I have left the old _ctype_ array in place, and moved the ctype.h
header to octype.h, so that existing shared binaries will still be
able to find and use it as they require.
See /usr/src/share/locale for information on how to create new locale
data files (eventually this procedure will be improved). I'd like to
have a family of locale files for various countries, languages, and
character sets, so please contribute some.
This code was originally written by Paul Borman and contributed to
4.4; I did the integration, and have somewhat tested it. crt0.c
probably ought to call setlocale() if it doesn't already, but I'd like
for people to create some locale files and try things manually first
before I make every program do this.
|
| 1321 |
02-Apr-1994 |
dg |
New interrupt code from Bruce Evans. In additional to Bruce's attached
list of changes, I've made the following additional changes:
1) i386/include/ipl.h renamed to spl.h as the name conflicts with the
file of the same name in i386/isa/ipl.h.
2) changed all use of *mask (i.e. netmask, biomask, ttymask, etc) to
*_imask (net_imask, etc).
3) changed vestige of splnet use in if_is to splimp.
4) got rid of "impmask" completely (Bruce had gotten rid of netmask),
and are now using net_imask instead.
5) dozens of minor cruft to glue in Bruce's changes.
These require changes I made to config(8) as well, and thus it must
be rebuilt.
-DG
from Bruce Evans:
sio:
o No diff is supplied. Remove the define of setsofttty(). I hope
that is enough.
*.s:
o i386/isa/debug.h no longer exists. The event counters became too
much trouble to maintain. All function call entry and exception
entry counters can be recovered by using profiling kernel (the new
profiling supports all entry points; however, it is too slow to
leave enabled all the time; it also). Only BDBTRAP() from debug.h
is now used. That is moved to exception.s. It might be worth
preserving SHOW_BITS() and calling it from _mcount() (if enabled).
o T_ASTFLT is now only set just before calling trap().
o All exception handlers set SWI_AST_MASK in cpl as soon as possible
after entry and arrange for _doreti to restore it atomically with
exiting. It is not possible to set it atomically with entering
the kernel, so it must be checked against the user mode bits in
the trap frame before committing to using it. There is no place
to store the old value of cpl for syscalls or traps, so there are
some complications restoring it.
Profiling stuff (mostly in *.s):
o Changes to kern/subr_mcount.c, gcc and gprof are not supplied yet.
o All interesting labels `foo' are renamed `_foo' and all
uninteresting labels `_bar' are renamed `bar'. A small change
to gprof allows ignoring labels not starting with underscores.
o MCOUNT_LABEL() is to provide names for counters for times spent
in exception handlers.
o FAKE_MCOUNT() is a version of MCOUNT() suitable for exception
handlers. Its arg is the pc where the exception occurred. The
new mcount() pretends that this was a call from that pc to a
suitable MCOUNT_LABEL().
o MEXITCOUNT is to turn off any timer started by MCOUNT().
/usr/src/sys/i386/i386/exception.s:
o The non-BDB BPTTRAP() macros were doing a sti even when interrupts
were disabled when the trap occurred. The sti (fixed) sti is
actually a no-op unless you have my changes to machdep.c that make
the debugger trap gates interrupt gates, but fixing that would
make the ifdefs messier. ddb seems to be unharmed by both
interrupts always disabled and always enabled (I had the branch in
the fix back to front for some time :-().
o There is no known pushal bug.
o tf_err can be left as garbage for syscalls.
/usr/src/sys/i386/i386/locore.s:
o Fix and update BDE_DEBUGGER support.
o ENTRY(btext) before initialization was dangerous.
o Warm boot shot was longer than intended.
/usr/src/sys/i386/i386/machdep.c:
o DON'T APPLY ALL OF THIS DIFF. It's what I'm using, but may require
other changes.
Use the following:
o Remove aston() and setsoftclock().
Maybe use the following:
o No netisr.h.
o Spelling fix.
o Delay to read the Rebooting message.
o Fix for vm system unmapping a reduced area of memory
after bounds_check_with_label() reduces the size of
a physical i/o for a partition boundary. A similar
fix is required in kern_physio.c.
o Correct use of __CONCAT. It never worked here for non-
ANSI cpp's. Is it time to drop support for non-ANSI?
o gdt_segs init. 0xffffffffUL is bogus because ssd_limit
is not 32 bits. The replacement may have the same
value :-), but is more natural.
o physmem was one page too low. Confusing variable names.
Don't use the following:
o Better numbers of buffers. Each 8K page requires up to
16 buffer headers. On my system, this results in 5576
buffers containing [up to] 2854912 bytes of memory.
The usual allocation of about 384 buffers only holds
192K of disk if you use it on an fs with a block size
of 512.
o gdt changes for bdb.
o *TGT -> *IDT changes for bdb.
o #ifdefed changes for bdb.
/usr/src/sys/i386/i386/microtime.s:
o Use the correct asm macros. I think asm.h was copied from Mach
just for microtime and isn't used now. It certainly doesn't
belong in <sys>. Various macros are also duplicated in
sys/i386/boot.h and libc/i386/*.h.
o Don't switch to and from the IRR; it is guaranteed to be selected
(default after ICU init and explicitly selected in isa.c too, and
never changed until the old microtime clobbered it).
/usr/src/sys/i386/i386/support.s:
o Non-essential changes (none related to spls or profiling).
o Removed slow loads of %gs again. The LDT support may require
not relying on %gs, but loading it is not the way to fix it!
Some places (copyin ...) forgot to load it. Loading it clobbers
the user %gs. trap() still loads it after certain types of
faults so that fuword() etc can rely on it without loading it
explicitly. Exception handlers don't restore it. If we want
to preserve the user %gs, then the fastest method is to not
touch it except for context switches. Comparing with
VM_MAXUSER_ADDRESS and branching takes only 2 or 4 cycles on
a 486, while loading %gs takes 9 cycles and using it takes
another.
o Fixed a signed branch to unsigned.
/usr/src/sys/i386/i386/swtch.s:
o Move spl0() outside of idle loop.
o Remove cli/sti from idle loop. sw1 does a cli, and in the
unlikely event of an interrupt occurring and whichqs becoming
zero, sw1 will just jump back to _idle.
o There's no spl0() function in asm any more, so use splz().
o swtch() doesn't need to be superaligned, at least with the
new mcounting.
o Fixed a signed branch to unsigned.
o Removed astoff().
/usr/src/sys/i386/i386/trap.c:
o The decentralized extern decls were inconsistent, of course.
o Fixed typo MATH_EMULTATE in comments. */
o Removed unused variables.
o Old netmask is now impmask; print it instead. Perhaps we
should print some of the new masks.
o BTW, trap() should not print anything for normal debugger
traps.
/usr/src/sys/i386/include/asmacros.h:
o DON'T APPLY ALL OF THIS DIFF. Just use some of the null macros
as necessary.
/usr/src/sys/i386/include/cpu.h:
o CLKF_BASEPRI() changes since cpl == SWI_AST_MASK is now normal
while the kernel is running.
o Don't use var++ to set boolean variables. It fails after a mere
4G times :-) and is slower than storing a constant on [3-4]86s.
/usr/src/sys/i386/include/cpufunc.h:
o DON'T APPLY ALL OF THIS DIFF. You need mainly the include of
<machine/ipl.h>. Unfortunately, <machine/ipl.h> is needed by
almost everything for the inlines.
/usr/src/sys/i386/include/ipl.h:
o New file. Defines spl inlines and SWI macros and declares most
variables related to hard and soft interrupt masks.
/usr/src/sys/i386/isa/icu.h:
o Moved definitions to <machine/ipl.h>
/usr/src/sys/i386/isa/icu.s:
o Software interrupts (SWIs) and delayed hardware interrupts (HWIs)
are now handled uniformally, and dispatching them from splx() is
more like dispatching them from _doreti. The dispatcher is
essentially *(handler[ffs(ipending & ~cpl)]().
o More care (not quite enough) is taken to avoid unbounded nesting
of interrupts.
o The interface to softclock() is changed so that a trap frame is
not required.
o Fast interrupt handlers are now handled more uniformally.
Configuration is still too early (new handlers would require
bits in <machine/ipl.h> and functions to vector.s).
o splnnn() and splx() are no longer here; they are inline functions
(could be macros for other compilers). splz() is the nontrivial
part of the old splx().
/usr/src/sys/i386/isa/ipl.h
o New file. Supposed to have only bus-dependent stuff. Perhaps
the h/w masks should be declared here.
/usr/src/sys/i386/isa/isa.c:
o DON'T APPLY ALL OF THIS DIFF. You need only things involving
*mask and *MASK and comments about them. netmask is now a pure
software mask. It works like the softclock mask.
/usr/src/sys/i386/isa/vector.s:
o Reorganize AUTO_EOI* macros.
o Option FAST_INTR_HANDLER_USERS_ES for people who don't trust
fastintr handlers.
o fastintr handlers need to metamorphose into ordinary interrupt
handlers if their SWI bit has become set. Previously, sio had
unintended latency for handling output completions and input
of SLIP framing characters because this was not done.
/usr/src/sys/net/netisr.h:
o The machine-dependent stuff is now imported from <machine/ipl.h>.
/usr/src/sys/sys/systm.h
o DON'T APPLY ALL OF THIS DIFF. You need mainly the different
splx() prototype. The spl*() prototypes are duplicated as
inlines in <machine/ipl.h> but they need to be duplicated here
in case there are no inlines. I sent systm.h and cpufunc.h
to Garrett. We agree that spl0 should be replaced by splnone
and not the other way around like I've done.
/usr/src/sys/kern/kern_clock.c
o splsoftclock() now lowers cpl so the direct call to softclock()
works as intended.
o softclock() interface changed to avoid passing the whole frame
(some machines may need another change for profile_tick()).
o profiling renamed _profiling to avoid ANSI namespace pollution.
(I had to improve the mcount() interface and may as well fix it.)
The GUPROF variant doesn't actually reference profiling here,
but the 'U' in GUPROF should mean to select the microtimer
mcount() and not change the interface.
|
| 1310 |
25-Mar-1994 |
dg |
ifdef KERNEL the pmap_kextract inline function; ps is unhappy otherwise.
Pointed out by Frank Terhaar-Yonkers <fty@vislab.epa.gov>.
|
| 1307 |
24-Mar-1994 |
dg |
From John Dyson: performance improvements to the new bounce buffer
code.
|
| 1288 |
21-Mar-1994 |
dg |
Changed dynamic stack grow code to grow by "SGROWSIZ" amount. Initially
allocate SGROWSIZ amount of stack. Also set vm_ssize to the initial
stack VM size. Increased DFLSSIZ stack rlimit default to 8MB.
|
| 1258 |
11-Mar-1994 |
swallace |
Updated include files for sound drivers.
|
| 1246 |
07-Mar-1994 |
dg |
1) "Pre-faulting" in of pages into process address space
Eliminates vm_fault overhead on process startup and
mmap referenced data for in-memory pages.
(process startup time using in-memory segments *much* faster)
2) Even more efficient pmap code. Code partially cleaned up.
More comments yet to follow.
(generally more efficient pte management)
3) Pageout clustering ( in addition to the FreeBSD V1.1 pagein
clustering.)
(much faster paging performance on non-write behind disk
subsystems, slightly faster performance on other systems.)
4) Slightly changed vm_pageout code for more efficiency and
better statistics. Also, resist swapout a little more.
(less likely to pageout a recently used page)
5) Slight improvement to the page table page trap efficiency.
(generally faster system VM fault performance)
6) Defer creation of unnamed anonymous regions pager until needed.
(speeds up shared memory bss creation)
7) Remove possible deadlock from swap_pager initialization.
8) Enhanced procfs to provide "vminfo" about vm objects and user
pmaps.
9) Increased MCLSHIFT/MCLBYTES from 2K to 4K to improve net &
socket performance and to prepare for things to come.
John Dyson
dyson@implode.root.com
David Greenman
davidg@root.com
|
| 1216 |
26-Feb-1994 |
ache |
Bump CLK_TCK to more precise value (128)
If you want more precise, use directly getrusage(),
because clock() emulated via it.
|
| 1209 |
24-Feb-1994 |
hsu |
Correct definitions of flags used by sigreturn to validate sigcontext.
|
| 1089 |
04-Feb-1994 |
chmr |
Make the screen savers runtime switchable. Everybody wants a
different default saver, and the size increase in the kernel is
minimal ( < 2.5K ).
|
| 1061 |
01-Feb-1994 |
nate |
From: sos@login.dkuug.dk (S|ren Schmidt)
Subject: syscons-1.3
Date: Sat, 29 Jan 94 23:33:50 MET
But here is the (hopefully) final syscons-1.3....
....
I've changed sgetc so it works as the pccons parallel
(it now uses a scgetc internally).
[
There were a couple changes that Bruce Evans sent me that were applied
to this version along with some changes that S'ren didn't incorporate
into the final version. There will be only minor changes if anything
from this version to his final release.
]
|
| 1056 |
31-Jan-1994 |
dg |
Added four pattern memory test routine that is done at startup.
...added filli - "fill integer" support routine.
|
| 1051 |
31-Jan-1994 |
dg |
WINE/user LDT support from John Brezak, ported to FreeBSD by Jeffrey Hsu
<hsu@soda.berkeley.edu>.
|
| 1048 |
31-Jan-1994 |
dg |
Fix broken bit definitions for pte/pde.
|
| 1045 |
31-Jan-1994 |
dg |
VM system performance improvements from John Dyson and myself. The
following is a summary:
1) increased object cache back up to a more reasonable value.
2) removed old & bogus cruft from machdep.c (clearseg, copyseg,
physcopyseg, etc).
3) inlined many functions in pmap.c
4) changed "load_cr3(rcr3())" into tlbflush() and made tlbflush inline
assembly.
5) changed the way that modified pages are tracked - now vm_page struct
is kept updated directly - no more scanning page tables.
6) removed lots of unnecessary spl's
7) removed old unused functions from pmap.c
8) removed all use of page_size, page_shift, page_mask variables - replaced
with PAGE_ constants.
9) moved trunc/round_page, atop, ptoa, out of vm_param.h and into i386/
include/param.h, and optimized them.
10) numerous changes to sys/vm/ swap_pager, vnode_pager, pageout, fault
code to improve performance. LRU algorithm modified to be more
effective, read ahead/behind values tuned for better performance,
etc, etc...
|
| 1029 |
27-Jan-1994 |
dg |
Removed no longer used "wire" element in pv struct.
|
| 1019 |
26-Jan-1994 |
ache |
Replace old-style Joerg copyright to berkeley-style,
per Joerg request.
|
| 974 |
14-Jan-1994 |
dg |
"New" VM system from John Dyson & myself. For a run-down of the
major changes, see the log of any effected file in the sys/vm
directory (swap_pager.c for instance).
|
| 926 |
03-Jan-1994 |
dg |
Increased maximum and default 'size' limits to more reasonable values.
|
| 924 |
03-Jan-1994 |
dg |
Convert syscall to trapframe. Based on work done by John Brezak.
|
| 907 |
21-Dec-1993 |
dg |
Changed pointer type from caddr_t to void * for fillw, insw, outsw, and
outsb.
|
| 891 |
21-Dec-1993 |
ache |
Separate read/write and format GAPs.
|
| 880 |
19-Dec-1993 |
alm |
adding libc/quad:
added _QUAD_HIGH/LOW
added (U_)QUAD_MAX/MIN
(from NetBSD)
|
| 879 |
19-Dec-1993 |
wollman |
Make everything compile with -Wtraditional. Make it easier to distribute
a binary link-kit. Make all non-optional options (pagers, procfs) standard,
and update LINT to reflect new symtab requirements.
NB: -Wtraditional will henceforth be forgotten. This editing pass was
primarily intended to detect any constructions where the old code might
have been relying on traditional C semantics or syntax. These were all
fixed, and the result of fixing some of them means that -Wall is now a
realistic possibility within a few weeks.
|
| 877 |
19-Dec-1993 |
ache |
From vak@kiae.su:
incorporate Joerg Wunsch floppy formatting code
|
| 827 |
03-Dec-1993 |
alm |
From: Jeffrey Hsu <hsu@soda.berkeley.edu>
The following patch adds the addr argument to signal handlers.
The kernel with the patch is no more and no less in compliance or in
violation of POSIX and ANSI C than the kernel before the patch.
The added functionality this addr argument provides is quite useful. It
enables an entire class of algorithms which use mprotect to trace memory
references. Beside garbage collectors, I have heard of this technique being
applied to debuggers and profilers. The only benchmarking I've performed is
using akcl to compile maxima: without the kernel patch, it takes 7 hours to
compile maxima, while with stratified garbage collection, it only takes 50
minutes.
Basically, I can't think of a reason not to add the addr argument and there
is a compelling need for it.
If you find the patch acceptable, please let me know so I can send my
FreeBSD akcl config files to wfs for inclusion in the core akcl release.
The old 386BSD config files there won't work on either NetBSD or FreeBSD.
|
| 805 |
27-Nov-1993 |
ache |
Move soundcard.h & ultrasound.h to proper location <machine/...>
to allow application access it.
|
| 798 |
25-Nov-1993 |
wollman |
Make the LINT kernel compile with -W -Wreturn-type -Wcomment -Werror, and
add same (sans -Werror) to Makefile for future compilations.
|
| 785 |
18-Nov-1993 |
rgrimes |
New version of scsi code from Julian
|
| 778 |
17-Nov-1993 |
wollman |
Fixed comments that start within a comment, so code compiles cleanly with
-Wcomment.
|
| 774 |
16-Nov-1993 |
dg |
new process tracing code from Sean Eric Fagen (sef@kithrup.com).
...also, fixed up the syscall args to make GCC happy.
|
| 757 |
13-Nov-1993 |
dg |
First steps in rewriting locore.s, and making info useful
when the machine panics.
i386/i386/locore.s:
1) got rid of most .set directives that were being used like
#define's, and replaced them with appropriate #define's in
the appropriate header files (accessed via genassym).
2) added comments to header inclusions and global definitions,
and global variables
3) replaced some hardcoded constants with cpp defines (such as
PDESIZE and others)
4) aligned all comments to the same column to make them easier to
read
5) moved macro definitions for ENTRY, ALIGN, NOP, etc. to
/sys/i386/include/asmacros.h
6) added #ifdef BDE_DEBUGGER around all of Bruce's debugger code
7) added new global '_KERNend' to store last location+1 of kernel
8) cleaned up zeroing of bss so that only bss is zeroed
9) fix zeroing of page tables so that it really does zero them all
- not just if they follow the bss.
10) rewrote page table initialization code so that 1) works correctly
and 2) write protects the kernel text by default
11) properly initialize the kernel page directory, upages, p0stack PT,
and page tables. The previous scheme was more than a bit
screwy.
12) change allocation of virtual area of IO hole so that it is
fixed at KERNBASE + 0xa0000. The previous scheme put it
right after the kernel page tables and then later expected
it to be at KERNBASE +0xa0000
13) change multiple bogus settings of user read/write of various
areas of kernel VM - including the IO hole; we should never
be accessing the IO hole in user mode through the kernel
page tables
14) split kernel support routines such as bcopy, bzero, copyin,
copyout, etc. into a seperate file 'support.s'
15) split swtch and related routines into a seperate 'swtch.s'
16) split routines related to traps, syscalls, and interrupts
into a seperate file 'exception.s'
17) remove some unused global variables from locore that got
inserted by Garrett when he pulled them out of some .h
files.
i386/isa/icu.s:
1) clean up global variable declarations
2) move in declaration of astpending and netisr
i386/i386/pmap.c:
1) fix calculation of virtual_avail. It previously was calculated
to be right in the middle of the kernel page tables - not
a good place to start allocating kernel VM.
2) properly allocate kernel page dir/tables etc out of kernel map
- previously only took out 2 pages.
i386/i386/machdep.c:
1) modify boot() to print a warning that the system will reboot in
PANIC_REBOOT_WAIT_TIME amount of seconds, and let the user
abort with a key on the console. The machine will wait for
ever if a key is typed before the reboot. The default is
15 seconds, but can be set to 0 to mean don't wait at all,
-1 to mean wait forever, or any positive value to wait for
that many seconds.
2) print "Rebooting..." just before doing it.
kern/subr_prf.c:
1) remove PANICWAIT as it is deprecated by the change to machdep.c
i386/i386/trap.c:
1) add table of trap type strings and use it to print a real trap/
panic message rather than just a number. Lot's of work to
be done here, but this is the first step. Symbolic traceback
is in the TODO.
i386/i386/Makefile.i386:
1) add support in to build support.s, exception.s and swtch.s
...and various changes to various header files to make all of the
above happen.
|
| 737 |
09-Nov-1993 |
ache |
Name of ioctl's include sys/spkr.h changed to machine/speaker.h
|
| 719 |
07-Nov-1993 |
wollman |
Made all header files idempotent and moved incorrect common data from
headers into a related source file. Added cons.h as first step towards
moving i386/i386/cons.h to machine/cons.h where it belongs.
|
| 678 |
28-Oct-1993 |
rgrimes |
Put back the $Id$ string
|
| 677 |
28-Oct-1993 |
jkh |
This is syscons version 1.1
|
| 652 |
23-Oct-1993 |
jkh |
Soundcard driver include file (/usr/include/machine/soundcard.h)
|
| 621 |
16-Oct-1993 |
rgrimes |
Removed all patch kit headers, sccsid and rcsid strings, put $Id$ in, some
minor cleanup. Added $Id$ to files that did not have any version info, etc
|
| 607 |
15-Oct-1993 |
rgrimes |
param.h:
Mark the fact that PGSHIFT and PDRSHIFT are really the same as
PG_SHIFT and PD_SHIFT, these should be collapsed some day soon.
Document that KERNBASE should really be KPTDPTDI << PDRSHIFT, for
now leave it as the constant 0xFE000000 until I make a seperate
common header file for this stuff (vmaddresses.h?)
Remove NKMEMCLUSTERS define, it was only being used to define
VM_KMEM_SIZE, so why have all the indirection. Besides who wants
to work in CLBYTE sizes chuncks.
pmap.h:
Fix $Id$ and some other minor format clean ups.
Remove the XXX comment about NKPDE, since it now has the correct value
of 7.
Remove unused LASTPTDI and move the APTD into the very end of memory to
free up 4MB of kernel virtual address space.
Remove unused RSVDPTDI and free up 12MB of kernel virtual address space.
vmparam.h
Fix $Id$.
Increase SHMMAXPGS to 512 (2MB) now that there is room for it to be
bigger. The XXX comment stays until the kernel moves down in memory
to free up enough space to use the proper default of 4MB.
VM_KMEM_SIZE is now a direct constant stating the size of the kernel
malloc region. Increased the value from 3MB to 16MB.
|
| 589 |
12-Oct-1993 |
rgrimes |
KPTDI_LAST renamed to KPTDI
|
| 588 |
12-Oct-1993 |
rgrimes |
Eliminate definition of I386_PAGE_SIZE and use NBPG instead
Cleaned up tabs vs spaces after #define to make file consistent.
Removed now unused definitions of I386_PAGE_SIZE and I386_PDR_SIZE
Note That these two where unused and had the wrong values anyway!
Changed I386_KPDES to NKPDE
Changed I386_UPDES to NUPDE
Redid constant assignments of *PTDI's to be sizeable and relative.
|
| 586 |
12-Oct-1993 |
rgrimes |
Fixed PHYSTOKV, addition operator on pointers is the wrong thing to do
here. This is really a crock, but it works.
|
| 584 |
12-Oct-1993 |
rgrimes |
Add PHYSTOKV used in scsi drivers with a correct definition based on
KERNBASE.
Change #define<tab> to #define<space> on lines that had it wrong
|
| 561 |
09-Oct-1993 |
dg |
Correct spelling of "SHMMAXPGS" so the config override will actually work.
|
| 557 |
08-Oct-1993 |
rgrimes |
All:
Remove patch kit headers, and add $Id$
This is mostly to align some more code with NetBSD.
cpu.h:
Remove the old function vs. include configuration stuff that was
ifdefed out when we went to inline functions.
Remove the define of resettodr that made it a nop, there is
already a function that makes it a nop, no need to #define one.
Remove the #defines of processor types, they are now defined
in cputypes.h, #include that file.
Add struct cpu_nameclass for support of cpu types.
frame.h:
include sys/signal.h, it will be needed in the future.
put the sigframe structure here that was in machdep.c
pcb.h:
Add multiple inclusion protection.
Add pcb_ldt and pcb_ldt_len to pcb structure, this is for the
user mode ldt.
|
| 553 |
08-Oct-1993 |
rgrimes |
Define the types of cpu's there are, from NetBSD
|
| 552 |
08-Oct-1993 |
rgrimes |
Fix definitions to be in terms of a minimum number of constants by
using the SHIFT value as the basis for the other values, for example
instead of:
#define NBPG 4096
#define PGSHIFT 12
use:
#define PGSHIFT 12
#define NBPG (1 << PGSHIFT)
===================================================================
RCS file: /a/cvs/386BSD/src/sys/i386/include/param.h,v
retrieving revision 1.3
diff -c -r1.3 param.h
*** 1.3 1993/10/08 12:49:55
--- param.h 1993/10/08 12:53:19
***************
*** 52,76 ****
#define ALIGNBYTES (sizeof(int) - 1)
#define ALIGN(p) (((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES)
- #define NBPG 4096 /* bytes/page */
- #define PGOFSET (NBPG-1) /* byte offset into page */
#define PGSHIFT 12 /* LOG2(NBPG) */
#define NPTEPG (NBPG/(sizeof (struct pte)))
- #define NBPDR (1024*NBPG) /* bytes/page dir */
- #define PDROFSET (NBPDR-1) /* byte offset into page dir */
#define PDRSHIFT 22 /* LOG2(NBPDR) */
#define KERNBASE 0xFE000000 /* start of kernel virtual */
#define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT)
! #define DEV_BSIZE 512
#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
#define BLKDEV_IOSIZE 2048
#define MAXPHYS (64 * 1024) /* max raw I/O transfer size */
- #define CLSIZE 1
#define CLSIZELOG2 0
/* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */
#define SSIZE 1 /* initial stack size/NBPG */
--- 52,79 ----
#define ALIGNBYTES (sizeof(int) - 1)
#define ALIGN(p) (((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES)
#define PGSHIFT 12 /* LOG2(NBPG) */
+ #define NBPG (1 << PGSHIFT) /* bytes/page */
+ #define PGOFSET (NBPG-1) /* byte offset into page */
#define NPTEPG (NBPG/(sizeof (struct pte)))
#define PDRSHIFT 22 /* LOG2(NBPDR) */
+ #define NBPDR (1 << PDRSHIFT) /* bytes/page dir */
+ #define PDROFSET (NBPDR-1) /* byte offset into page dir */
#define KERNBASE 0xFE000000 /* start of kernel virtual */
#define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT)
! #define KERNSIZE 0x00C00000 /* size of kernel virtual */
!
#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
+ #define DEV_BSIZE (1 << DEV_BSHIFT)
+
#define BLKDEV_IOSIZE 2048
#define MAXPHYS (64 * 1024) /* max raw I/O transfer size */
#define CLSIZELOG2 0
+ #define CLSIZE (1 << CLSIZELOG2)
/* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */
#define SSIZE 1 /* initial stack size/NBPG */
***************
*** 92,99 ****
#ifndef MCLSHIFT
#define MCLSHIFT 11 /* convert bytes to m_buf clusters */
#endif /* MCLSHIFT */
! #define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */
! #define MCLOFSET (MCLBYTES - 1) /* offset within a m_buf cluster */
#ifndef NMBCLUSTERS
#ifdef GATEWAY
--- 95,102 ----
#ifndef MCLSHIFT
#define MCLSHIFT 11 /* convert bytes to m_buf clusters */
#endif /* MCLSHIFT */
! #define MCLBYTES (1 << MCLSHIFT) /* size of an m_buf cluster */
! #define MCLOFSET (MCLBYTES - 1) /* offset within an m_buf cluster */
#ifndef NMBCLUSTERS
#ifdef GATEWAY
|
| 551 |
08-Oct-1993 |
rgrimes |
Removed patch kit header. Cleaned up tabbing and removed extra blank
lines to match NetBSD. Added $Id$.
Added MID_MACHINE from NetBSD.
Removed definition of DELAY() for non-kernel soures.
Fixed some small english errors that had been corrected in NetBSD.
File is now identical to NetBSD's, but will be changing soon for some
of my clean up work.
|
| 550 |
08-Oct-1993 |
rgrimes |
Architecture specific syscalls (i386) from NetBSD
|
| 541 |
04-Oct-1993 |
jkh |
Latest changes for XFree86 2.0
|
| 531 |
01-Oct-1993 |
rgrimes |
New resting home for console.h, it is machine specific.
|
| 511 |
27-Sep-1993 |
rgrimes |
define SHMMAXPGS where it is suppose to be, you can over ride this with
a kernel config options "SHMAXPGS=xxx", default is currently 64 pages
due to limit kernel map space.
|
| 415 |
08-Sep-1993 |
rgrimes |
>From Theo Derradt
This is a machine specific include, it belongs in the machine specific
directory.
|
| 373 |
01-Sep-1993 |
rgrimes |
Increased stack size to 8MB just to be on the real safe side.
|
| 348 |
28-Aug-1993 |
rgrimes |
Changed MAXSSIZ from MAXDSIZ to 2MB
|
| 338 |
27-Aug-1993 |
alm |
prefixed inline functions' parameter names with _ and declared
the return type explicitly.
|
| 326 |
25-Aug-1993 |
alm |
adding fpgetround(3) IEEE floating point environment support
|
| 203 |
28-Jul-1993 |
nate |
fts(3) integration patches
|
| 200 |
27-Jul-1993 |
dg |
* Applied fixes from Bruce Evans to fix COW bugs, >1MB kernel loading,
profiling, and various protection checks that cause security holes
and system crashes.
* Changed min/max/bcmp/ffs/strlen to be static inline functions
- included from cpufunc.h in via systm.h. This change
improves performance in many parts of the kernel - up to 5% in the
networking layer alone. Note that this requires systm.h to be included
in any file that uses these functions otherwise it won't be able to
find them during the load.
* Fixed incorrect call to splx() in if_is.c
* Fixed bogus variable assignment to splx() in if_ed.c
|
| 90 |
03-Jul-1993 |
root |
Increased default data size (DFLDSIZ) to 16MB. Need to rebuild libutil,
kernel, ps and w for this to work!
|
| 80 |
30-Jun-1993 |
nate |
Added (protection) around negative constants, in case a program wants
to use the negative of that constant.
#define NEG_NUM -3
#define SAFE_NEG_NUM (-3)
i = -NEG_NUM; /* Error --3 */
j = -SAFE_NEG_NUM /* Okay -(-3) */
|
| 79 |
29-Jun-1993 |
nate |
Setting up for updated (usable) FPE atof/vfprintf/vfscanf fixes
|
| 5 |
12-Jun-1993 |
rgrimes |
This commit was generated by cvs2svn to compensate for changes in r4,
which included commits to RCS files with non-trunk default branches.
|