- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.3.
- Update default pkg(8) configuration to use the quarterly branch.

Approved by: re (implicit)

MFC r258078,258079

Increase the stack size for ppc64 from 4 pages to 8.

I found a stack overflow when a coredump was taken onto a ZFS volume with
heavy network activity. 2 DSI traps, plus one DECR trap, along with several
function calls in the stack, overflowed the 4 pages. 8 page stack fixes this.

Discussed with: nwhitehorn
Approved by: re
Relnotes: yes

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Raise artificial limits on number of CPUs and number of interrupts.

Approved by: re (kib)

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

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)

The P4080 has 8 cores. Bump MAXCPU to 8 to match.

- Bump MAXCPU to 4. Tested on a quad G5 with both 32 and 64-bit kernels.
A make buildkernel -j4 uses ~360% CPU.
- Bracket the AP spinup printf with a mutex to avoid garbled output.
- Enable SMP by default on powerpc64.

Reviewed by: nwhitehorn

When compat32 binary asks for the value of hw.machine_arch, report the
name of 32bit sibling architecture instead of the host one. Do the
same for hw.machine on amd64.

Add a safety belt debug.adaptive_machine_arch sysctl, to turn the
substitution off.

Reviewed by: jhb, nwhitehorn
MFC after: 2 weeks

MFppc64:

Kernel sources for 64-bit PowerPC, along with build-system changes to keep
32-bit kernels compiling (build system changes for 64-bit kernels are
coming later). Existing 32-bit PowerPC kernel configurations must be
updated after this change to specify their architecture.

Add a new sysctl for reporting all of the supported page sizes.

Reviewed by: jhb
MFC after: 3 weeks

Get rid of the _NO_NAMESPACE_POLLUTION kludge by creating an
architecture specific include file containing the _ALIGN*
stuff which <sys/socket.h> needs.

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)

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

Add description and cautionary note regarding CACHE_LINE_SIZE.

MFC after: 2 weeks
Suggested by: alc

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@

Adapt parts of the sparc64 Open Firmware bus enumeration code (in particular,
the code for parsing interrupt maps) to PowerPC and reflect their new MI
status by moving them to the shared dev/ofw directory.

This commit also modifies the OFW PCI enumeration procedure on PowerPC to
allow the bus to find non-firmware-enumerated devices that Apple likes to add,
and adds some useful Open Firmware properties (compat and name) to the pnpinfo
string of children on OFW SBus, EBus, PCI, and MacIO links. Because of the
change to PCI enumeration on PowerPC, X has started working again on PPC
machines with Grackle hostbridges.

Reviewed by: marius
Obtained from: sparc64

When building a kernel module, define MAXCPU the same as SMP so
that modules work with and without SMP.

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.

Remove UAREA_PAGES.

Reviewed by: arch@

<machine/pte.h> has no business being here. Finally exposed by F77 build
failure.

Cleaned up param.h:

- culled long-dead #define's
- segment register defs moved to sr.h
- NPMAPS moved to pmap.h
- KERNBASE moved to vmparam.h
- removed include of <machine/cpu.h> and fixed src files that
relied on this.

Modifying segment register code no longer causes gcc rebuilds :-)

_MACHINE/_MACHINE_ARCH shouldn't be quoted. Found by trying to
compile the isp driver.

Deal with 'options KSTACK_PAGES' being a global option.

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().

Define _MACHINE.

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

Move MI stuff out of MD param.h files.

It can all still be overridden in the MD files should need suddenly arise.

Remove the unused definitions of ctod() and dotc().

Increase the size of the kstack.

Complete rework of the PowerPC pmap and a number of other bits in the early
boot sequence.

The new pmap.c is based on NetBSD's newer pmap.c (for the mpc6xx processors)
which is 70% faster than the older code that the original pmap.c was based
on. It has also been based on the framework established by jake's initial
sparc64 pmap.c.

There is no change to how far the kernel gets (it makes it to the mountroot
prompt in psim) but the new pmap code is a lot cleaner.

Obtained from: NetBSD (pmap code)

Update PowerPC MD code to compile and do initial bootstrap based on
recent changes (KSE and VM requiring physmem to be setup).

Reviewed by: benno, jhb, julian

This commit (along with one pending in sys/dev/ofw and one in sys/conf) give
us our first minimal glimpse of PowerPC support.

With this code we can get to the "mountroot>" prompt on my Apple iMac. We
can't get any further due to lack of clock and interrupt handling, among other
things. This does however mean that pmap and VM are initialising.

We're fairly dependant on OpenFirmware at this point, but I hope to add
support for other classes of firmware at a later stage.

Reviewed by: obrien, dfr

PowerPC platform-specific definitions (modeled on sys/i386/include/param.h)