- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

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

MFC r256777-256779,256788:
Add driver for POWER hypervisor interpartition ethernet.

Approved by: re (glebius)

- Remove debugging from GENERIC* kernel configurations
- Enable MALLOC_PRODUCTION
- Default dumpdev=NO
- Remove UPDATING entry regarding debugging features
- Bump __FreeBSD_version to 1000500

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

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

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

Merge in support for PAPR-compliant (Power Architecture Platform
Requirements) systems from the projects/pseries branch. This in principle
includes all IBM POWER hardware released in the last 15 years with the
exception of POWER3-based systems when run in 64-bit mode. The main
development target, however, has been the PAPR logical partition support
that is the default target in KVM on POWER and QEMU -- mileage may vary
on actual hardware at present. Much of the heavy lifting here was done
by Andreas Tobler.

Approved by: re (kib)

Enable DTrace hooks in ppc64.

Add process descriptors support to the GENERIC kernel. It is already being
used by the tools in base systems and with sandboxing more and more tools
the usage should only increase.

Submitted by: Mariusz Zaborski <oshogbo@FreeBSD.org>
Sponsored by: Google Summer of Code 2013
MFC after: 1 month

follow up to r254051

- update powerpc/GENERIC64 as well, suggested by mdf
- update comments so that they make sense after the change, suggested by
jhb

X-MFC after: never (change specific to head)

enable KDB_TRACE in GENERICs

KDB_TRACE is not an alternative to DDB/etc, they are complementary.
So I do not see any reason to not enable KDB_TRACE by default.

X-MFC after: never (change specific to head)

Back out r253779 & r253786.

Decouple yarrow from random(4) device.

* Make Yarrow an optional kernel component -- enabled by "YARROW_RNG" option.
The files sha2.c, hash.c, randomdev_soft.c and yarrow.c comprise yarrow.

* random(4) device doesn't really depend on rijndael-*. Yarrow, however, does.

* Add random_adaptors.[ch] which is basically a store of random_adaptor's.
random_adaptor is basically an adapter that plugs in to random(4).
random_adaptor can only be plugged in to random(4) very early in bootup.
Unplugging random_adaptor from random(4) is not supported, and is probably a
bad idea anyway, due to potential loss of entropy pools.
We currently have 3 random_adaptors:
+ yarrow
+ rdrand (ivy.c)
+ nehemeiah

* Remove platform dependent logic from probe.c, and move it into
corresponding registration routines of each random_adaptor provider.
probe.c doesn't do anything other than picking a specific random_adaptor
from a list of registered ones.

* If the kernel doesn't have any random_adaptor adapters present then the
creation of /dev/random is postponed until next random_adaptor is kldload'ed.

* Fix randomdev_soft.c to refer to its own random_adaptor, instead of a
system wide one.

Submitted by: arthurmesh@gmail.com, obrien
Obtained from: Juniper Networks
Reviewed by: obrien

Tidy up some CVS workarounds.

Generate a LINT for powerpc and for powerpc64.

Discussed with: nwhitehorn

Remove all legacy ATA code parts, not used since options ATA_CAM enabled in
most kernels before FreeBSD 9.0. Remove such modules and respective kernel
options: atadisk, ataraid, atapicd, atapifd, atapist, atapicam. Remove the
atacontrol utility and some man pages. Remove useless now options ATA_CAM.

No objections: current@, stable@
MFC after: never

Enable the UFS quotas for big-iron GENERIC kernels.

Discussed with: mckusick
MFC after: 2 weeks

As discussed on -current last October, remove the firewire drivers from
GENERIC.

Add DTrace to 32-bit PowerPC GENERIC now.

MFC after: 1 month

Remove compat options.

Submitted by: netchild

Fix the top comment.

Add a config file for the Wii.

Add "options WII".

Add the ds1631 temperature driver.

Add backlight support for nVidia-based PowerBooks/iBooks/iMacs.

Approved by: nwhitehorn (mentor)
MFC after: 9.1-RELEASE

Remove device uart_z8530 and options GEOM_PART_APM from DEFAULTS and instead
add them to GENERIC and GENERIC64. They are applicable to Apple H/W and not
at all for Book-E platforms.

Now that the mps(4) driver is endian-safe, add it to the powerpc 32-bit
GENERIC config file.

MFC after: 3 days
Reqested by: nwhitehorn

Reduce diffs between GENERIC and GENERIC64. Also fix a few whitespace nits
while I'm here. No functional change.

Now that the mps(4) driver is endian-safe, add it to the powerpc and
sparc64 GENERIC config files.

MFC after: 3 days

Let us manage differences of Book-E PowerPC variations i.e. vendor /
implementation specific vs. the common architecture definition.

Bring PPC4XX defines (PSL, SPR, TLB). Note the new definitions under
BOOKE_PPC4XX are not used in the code yet.

This change set is not supposed to affect existing E500 support, it's just
another reorg step before bringing support for E500mc, E5500 and PPC465.

Obtained from: AppliedMicro, Freescale, Semihalf

Remove pty(4) from our kernel configurations.

As of FreeBSD 8, this driver should not be used. Applications that use
posix_openpt(2) and openpty(3) use the pts(4) that is built into the
kernel unconditionally. If it turns out high profile depend on the
pty(4) module anyway, I'd rather get those fixed. So please report any
issues to me.

The pty(4) module is still available as a kernel module of course, so a
simple `kldload pty' can be used to run old-style pseudo-terminals.

Disable the option VFS_ALLOW_NONMPSAFE by default on all the supported
platforms.
This will make every attempt to mount a non-mpsafe filesystem to the
kernel forbidden, unless it is expressely compiled with
VFS_ALLOW_NONMPSAFE option.

This patch is part of the effort of killing non-MPSAFE filesystems
from the tree.

No MFC is expected for this patch.

Add backlight control to ATI-graphics PowerBooks and iBooks.

Approved by: nwhitehorn (mentor)
MFC after: 1 week

Enable the new PCI-PCI bridge driver by default.
Tested on 32- and 64-bit PowerMac.

Fix build on powerpc64 too. The same as r229640.

Fix build.

Add "options CAPABILITY_MODE" and "options CAPABILITIES" to GENERIC kernel
configurations for various architectures in FreeBSD 10.x. This allows
basic Capsicum functionality to be used in the default FreeBSD
configuration on non-embedded architectures; process descriptors are not
yet enabled by default.

MFC after: 3 months
Sponsored by: Google, Inc

Introduce the option VFS_ALLOW_NONMPSAFE and turn it on by default on
all the architectures.
The option allows to mount non-MPSAFE filesystem. Without it, the
kernel will refuse to mount a non-MPSAFE filesytem.

This patch is part of the effort of killing non-MPSAFE filesystems
from the tree.

No MFC is expected for this patch.

Tested by: gianni
Reviewed by: kib

Adjust the debugger options slightly. This should help me do the right
thing when changing the debugging options as part of head becoming a new
stable branch. It may also help people who for one reason or another want
to run head but don't want it slowed down by the debugging support.

Reviewed by: kib

Add a warning about why sbp(4) is commented out so that curious folks
are forewarned they might wind up with a hole in their foot if they
decide to give it a try.

Suggested by: dougb

Apply r221124 to Book-E: switch to the new NFS client.

Approved by: re (blanket)

Enable PREEMPTION for PowerPC/AIM generic kernels. The last known PREEMPTION
bug on PowerPC was resolved by r223485, and it appears to run stably at this
point.

Follow up r222980 on PowerPC: add sound(4) and common device drivers
to PowerPC GENERIC (along with a small rearrangement).

Add new fan controller driver for the G4 MDD PowerMac. Submitted and tested
by Justin Hibbits.

Approved by: nwhitehorn (mentor)

Add a new driver, the ad7417, to read temperatures and voltages on some
PowerMac's.

Approved by: nwhitehorn (mentor)

SMP has worked perfectly for a very long time on 32-bit PowerPC on both
UP and SMP hardware. Enable it in GENERIC.

MFC after: 2 weeks

This patch changes head so that the default NFS client is now the new
NFS client (which I guess is no longer experimental). The fstype "newnfs"
is now "nfs" and the regular/old NFS client is now fstype "oldnfs".
Although mounts via fstype "nfs" will usually work without userland
changes, an updated mount_nfs(8) binary is needed for kernels built with
"options NFSCL" but not "options NFSCLIENT". Updated mount_nfs(8) and
mount(8) binaries are needed to do mounts for fstype "oldnfs".
The GENERIC kernel configs have been changed to use options
NFSCL and NFSD (the new client and server) instead of NFSCLIENT and NFSSERVER.
For kernels being used on diskless NFS root systems, "options NFSCL"
must be in the kernel config.
Discussed on freebsd-fs@.

Switch the GENERIC kernels for all architectures to the new CAM-based ATA
stack. It means that all legacy ATA drivers are disabled and replaced by
respective CAM drivers. If you are using ATA device names in /etc/fstab or
other places, make sure to update them respectively (adX -> adaY,
acdX -> cdY, afdX -> daY, astX -> saY, where 'Y's are the sequential
numbers for each type in order of detection, unless configured otherwise
with tunables, see cam(4)).

ataraid(4) functionality is now supported by the RAID GEOM class.
To use it you can load geom_raid kernel module and use graid(8) tool
for management. Instead of /dev/arX device names, use /dev/raid/rX.

Unbreak the LINT build. PS3 kernels can only be built 64-bit, and LINT is
built for both architectures. We need a better solution here.

Import support for the Sony Playstation 3 using the OtherOS feature
available on firmwares 3.15 and earlier.

Caveats: Support for the internal SATA controller is currently missing,
as is support for framebuffer resolutions other than 720x480. These
deficiencies will be remedied soon.

Special thanks to Peter Grehan for providing the hardware that made this
port possible, and thanks to Geoff Levand of Sony Computer Entertainment
for advice on the LV1 hypervisor.

Add a driver for the Apple Uninorth AGP host bridge found in all PowerPC
Macintoshes with an AGP bus.

Add three new drivers for fan control and temperature reading on the
PowerMac7,2.

- The fcu driver lets us read and write the fan RPMs for all fans in the
PowerMac7,2. This driver is PowerMac specific.
- The ds1775 is a driver to read the temperature for the drive bay sensor.
- The max6690 is another driver to read temperatures. Here it is used to
read the inlet, the backside and the U3 heatsink temperature.

An additional driver, the ad7417, will follow later.

Thanks to nwhitehorn for guiding me through this driver development.

Approved by: nwhitehorn (mentor)

Follow r213098, kernel POSIX semaphore module is no longer
needed.

Now userland POSIX semaphore is based on umtx. The kernel module
is only used to support binary compatible, if want to run old
binary, you need to kldload the module.

- 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

Unbreak the LINT kernel on powerpc64. Note that the LINT kernel
configuration is TARGET_ARCH specific and must be generated with
TARGET_ARCH set.

Reviewed by: imp

Add support for the IBM Full-System Simulator (Mambo). This code has been
developed against the 970 and Cell simulators.

Add MALLOC_DEBUG_MAXZONES=8 to powerpc64 GENERIC configuration file.

Requested by: nwhitehorn
Approved by: zml (mentor)

Add MALLOC_DEBUG_MAXZONES debug malloc(9) option to use multiple uma
zones for each malloc bucket size. The purpose is to isolate
different malloc types into hash classes, so that any buffer overruns
or use-after-free will usually only affect memory from malloc types in
that hash class. This is purely a debugging tool; by varying the hash
function and tracking which hash class was corrupted, the intersection
of the hash classes from each instance will point to a single malloc
type that is being misused. At this point inspection or memguard(9)
can be used to catch the offending code.

Add MALLOC_DEBUG_MAXZONES=8 to -current GENERIC configuration files.
The suggestion to have this on by default came from Kostik Belousov on
-arch.

This code is based on work by Ron Steinke at Isilon Systems.

Reviewed by: -arch (mostly silence)
Reviewed by: zml
Approved by: zml (mentor)

Add GENERIC kernel config for powerpc64.

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.

Convert Freescale PowerPC platforms to FDT convention.

The following systems are affected:

- MPC8555CDS
- MPC8572DS

This overhaul covers the following major changes:

- All integrated peripherals drivers for Freescale MPC85XX SoC, which are
currently in the FreeBSD source tree are reworked and adjusted so they
derive config data out of the device tree blob (instead of hard coded /
tabelarized values).

- This includes: LBC, PCI / PCI-Express, I2C, DS1553, OpenPIC, TSEC, SEC,
QUICC, UART, CFI.

- Thanks to the common FDT infrastrucutre (fdtbus, simplebus) we retire
ocpbus(4) driver, which was based on hard-coded config data.

Note that world for these platforms has to be built WITH_FDT.

Reviewed by: imp
Sponsored by: The FreeBSD Foundation

Change USB_DEBUG to #ifdef and allow it to be turned off. Previously this had
the illusion of a tunable setting but was always turned on regardless.

MFC after: 1 week

Remove COMPAT_43TTY from stock kernel configuration files.

COMPAT_43TTY enables the sgtty interface. Even though its exposure has
only been removed in FreeBSD 8.0, it wasn't used by anything in the base
system in FreeBSD 5.x (possibly even 4.x?). On those releases, if your
ports/packages are less than two years old, they will prefer termios
over sgtty.

Adjust style (following the already existing rules) for the newly
introduced option DEADLKRES.

Reported by: danfe, julian, avg

Add the options DEADLKRES (introducing the deadlock resolver thread) in
the 'debugging' section of any HEAD kernel and enable for the mainstream
ones, excluding the embedded architectures.
It may, of course, enabled on a case-by-case basis.

Sponsored by: Sandvine Incorporated
Requested by: emaste
Discussed with: kib

Move the examples for the 'hints' and 'env' keywords from various GENERIC
kernel configs into NOTES.

Reviewed by: imp

Add INCLUDE_CONFIG_FILE in GENERIC on all non-embedded platforms.

# This is the resolution of removing it from DEFAULTS...

MFC after: 5 days

In sys/<arch>/conf/Makefile set TARGET to <arch>. That allows
sys/conf/makeLINT.mk to only do certain things for certain
architectures.

Note that neither arm nor mips have the Makefile there, thus
essentially not (yet) supporting LINT. This would enable them
do add special treatment to sys/conf/makeLINT.mk as well chosing
one of the many configurations as LINT.

This is a hack of doing this and keeping it in a separate commit
will allow us to more easily identify and back it out.

Discussed on/with: arch, jhb (as part of the LINT-VIMAGE thread)
MFC after: 1 month

Revert 200594. This file isn't intended for these sorts of things.

Add vlan(4) to all GENERIC kernels.

MFC after: 1 week

Add INCLUDE_CONFIG_FILE, and a note in comments about how to also
include the comments with CONFIGARGS

Add atp(4) to powerpc GENERIC. Most late-generation Apple PowerPC laptops
have trackpads that do not work at all without this driver.

Add a few SCSI controllers to GENERIC that can be found on Powermacs.
This allows installation onto SCSI disks as shipped, for example,
with the Powermac G3.

PR: powerpc/138543
Obtained from: sparc64
MFC after: 3 days

Remove some debugging (KTR_VERBOSE) that crept into ppc GENERIC long ago
and is present on no other architectures by default.

MFC after: 4 days

Enable POSIX semaphores on all non-embedded architectures by default.

More applications (including Firefox) seem to depend on this nowadays,
so not having this enabled by default is a bad idea.

Proposed by: miwi
Patch by: Florian Smeets <flo kasimir com>
Approved by: re (kib)

Include SMP support in the MPC85XX kernel by default.

Add cpufreq support on the PowerPC G5, along with a skeleton SMU driver
in order to slew CPU voltage during frequency changes. The OpenBSD SMU
driver was an extremely helpful reference for this.

DS1553 RTC module driver. On the MPC8555CDS system it hangs off of the LBC bus.

Obtained from: Semihalf

Integrated I2C controller driver (found in MPC85xx and other SOC parts).

Obtained from: Freescale, Semihalf

Initial version of the sec(4) driver for the integrated security engine found
in Freescale system-on-chip devices.

The following algorithms and schemes are currently supported:
- 3DES, AES, DES
- MD5, SHA1, SHA256, SHA384, SHA512

Reviewed by: philip
Obtained from: Freescale, Semihalf

Remove MAC kernel config files and add "options MAC" to GENERIC, with the
goal of shipping 8.0 with MAC support in the default kernel. No policies
will be compiled in or enabled by default, but it will now be possible to
load them at boot or runtime without a kernel recompile.

While the framework is not believed to impose measurable overhead when no
policies are loaded (a result of optimization over the past few months in
HEAD), we'll continue to benchmark and optimize as the release approaches.
Please keep an eye out for performance or functionality regressions that
could be a result of this change.

Approved by: re (kensmith)
Obtained from: TrustedBSD Project

Introduce support for cpufreq on PowerPC with the dynamic frequency
switching capabilities of the MPC7447A and MPC7448.

- Use "device\t" and "options \t" for consistency.

Add suppport for ISA and ISA interrupts to make the ATA
controller in the VIA southbridge functional in the CDS
(Configurable Development System) for MPC85XX.
The embedded USB controllers look operational but the
interrupt steering is still wrong.

Remove the uscanner(4) driver, this follows the removal of the kernel scanner
driver in Linux 2.6. uscanner was just a simple wrapper around a fifo and
contained no logic, the default interface is now libusb (supported by sane).

Reviewed by: HPS

Change over the usb kernel options to the new stack (retaining existing
naming). The old usb stack can be compiled in my prefixing the name with 'o'.

Additional features for the tsec(4) Ethernet driver.

- interrupt coalescing
- polling
- jumbo frames
- multicast
- VLAN tagging

The enhanced version of the chip (eTSEC) can also take advantage of:

- TCP/IP checksum calculation h/w offloading

Obtained from: Freescale, Semihalf

Add uslcom to the build too.

Reminded by: Michael Butler

Switch over GENERIC kernels to USB2 by default.

Tested by: make universe

Add support for the I2S and davbus audio controllers found in Apple PowerPC
hardware.

Submitted by: Marco Trillo

Driver for Apple Keywest I2C controllers found in MacIO ASICs. Used for
power and thermal control, as well as GPIOs on Xserves and controlling
sound codecs for Apple built-in audio.

Submitted by: Marco Trillo
Obtained from: NetBSD

Accidentally left ADB out of the PowerPC NOTES file during initial import.

Remove "[KEEP THIS!]" from COMPAT_43TTY. It's not really that important.

Sgtty is a programming interface that has been replaced by termios over
the years. In June we already removed <sgtty.h>, which exposes the
ioctl()'s that are implemented by this interface. The importance of this
flag is overrated right now.

Add ADB support. This provides support for the external ADB bus on the PowerMac
G3 as well as the internal ADB keyboard and mice in PowerBooks and iBooks. This
also brings in Mac GPIO support, for which we should eventually have a better
interface.

Obtained from: NetBSD (CUDA and PMU drivers)

Enable the cfi(4) driver.

Integrate the new MPSAFE TTY layer to the FreeBSD operating system.

The last half year I've been working on a replacement TTY layer for the
FreeBSD kernel. The new TTY layer was designed to improve the following:

- Improved driver model:

The old TTY layer has a driver model that is not abstract enough to
make it friendly to use. A good example is the output path, where the
device drivers directly access the output buffers. This means that an
in-kernel PPP implementation must always convert network buffers into
TTY buffers.

If a PPP implementation would be built on top of the new TTY layer
(still needs a hooks layer, though), it would allow the PPP
implementation to directly hand the data to the TTY driver.

- Improved hotplugging:

With the old TTY layer, it isn't entirely safe to destroy TTY's from
the system. This implementation has a two-step destructing design,
where the driver first abandons the TTY. After all threads have left
the TTY, the TTY layer calls a routine in the driver, which can be
used to free resources (unit numbers, etc).

The pts(4) driver also implements this feature, which means
posix_openpt() will now return PTY's that are created on the fly.

- Improved performance:

One of the major improvements is the per-TTY mutex, which is expected
to improve scalability when compared to the old Giant locking.
Another change is the unbuffered copying to userspace, which is both
used on TTY device nodes and PTY masters.

Upgrading should be quite straightforward. Unlike previous versions,
existing kernel configuration files do not need to be changed, except
when they reference device drivers that are listed in UPDATING.

Obtained from: //depot/projects/mpsafetty/...
Approved by: philip (ex-mentor)
Discussed: on the lists, at BSDCan, at the DevSummit
Sponsored by: Snow B.V., the Netherlands
dcons(4) fixed by: kan

Disconnect drivers that haven't been ported to MPSAFE TTY yet.

As clearly mentioned on the mailing lists, there is a list of drivers
that have not been ported to the MPSAFE TTY layer yet. Remove them from
the kernel configuration files. This means people can now still use
these drivers if they explicitly put them in their kernel configuration
file, which is good.

People should keep in mind that after August 10, these drivers will not
work anymore. Even though owners of the hardware are capable of getting
these drivers working again, I will see if I can at least get them to a
compilable state (if time permits).

Add HWPMC_HOOKS to GENERIC kernels, this makes hwpmc.ko work out
of the box.

Exclude .cvsignore files from $FreeBSD$ checking

Move bm(4) from the sys/conf/NOTES to sys/powerpc/conf/NOTES.
The driver applies to PowerPC only.

Add support for the Apple Big Mac (BMAC) Ethernet controller,
found on various Apple G3 models.

Submitted by: Nathan Whitehorn

Use the "options " spelling (vs. "options<TAB>") so that commented lines
line up nicely.

MFp4: SMP support

Enable NFSLOCKD for MPC85XX kernel to comply with recent NFS rework.

Make genclock standard on all platforms.

Thanks to: grehan & marcel for platform support on ia64 and ppc.

Switch to using genclock. Have nexus double as clock device for
now. While here, add a proper attach() method to nexus.

Requested by: phk

Get rid of an empty RTC implementation and hook up genclock instead.

Add kernel module support for nfslockd and krpc. Use the module system
to detect (or load) kernel NLM support in rpc.lockd. Remove the '-k'
option to rpc.lockd and make kernel NLM the default. A user can still
force the use of the old user NLM by building a kernel without NFSLOCKD
and/or removing the nfslockd.ko module.

Remove kernel support for M:N threading.

While the KSE project was quite successful in bringing threading to
FreeBSD, the M:N approach taken by the kse library was never developed
to its full potential. Backwards compatibility will be provided via
libmap.conf for dynamically linked binaries and static binaries will
be broken.

Also comment-out options MPC85XX. We don't define CCSRBAR_* without E500.

Comment-out cpu E500. We can't yet build it with AIM at the same time.

Connect MPC85XX to the PowerPC build.

The kernel config file is KERNCONF=MPC85XX, so the usual procedure applies:

1. make buildworld TARGET_ARCH=powerpc
2. make buildkernel TARGET_ARCH=powerpc TARGET_CPUTYPE=e500 KERNCONF=MPC85XX

This default config uses kernel-level FPU emulation. For the soft-float world
approach:

1. make buildworld TARGET_ARCH=powerpc TARGET_CPUTYPE=e500
2. disable FPU_EMU option in sys/powerpc/conf/MPC85XX
3. make buildkernel TARGET_ARCH=powerpc TARGET_CPUTYPE=e500 KERNCONF=MPC85XX

Approved by: cognet (mentor)
MFp4: e500

Add FPU_EMU.

Enable option WITNESS_SKIPSPIN by default.

There's no need to suppress option GDB.

Add COMPAT_FREEBSD7 and enable it in configs that have COMPAT_FREEBSD6.

Redefine bus_space_tag_t on PowerPC from a 32-bit integral to
a pointer to struct bus_space. The structure contains function
pointers that do the actual bus space access.

The reason for this change is that previously all bus space
accesses were little endian (i.e. had an explicit byte-swap
for multi-byte accesses), because all busses on Macs are little
endian.
The upcoming support for Book E, and in particular the E500
core, requires support for big-endian busses because all
embedded peripherals are in the native byte-order.

With this change, there's no distinction between I/O port
space and memory mapped I/O. PowerPC doesn't have I/O port
space. Busses assign tags based on the byte-order only.
For that purpose, two global structures exist (bs_be_tag and
bs_le_tag), of which the address can be taken to get a valid
tag.

Obtained from: Juniper, Semihalf

Rename OEA to AIM. The former means nothing as it applies to all
processors (it's the PowerPC Operating Environment Architecture).
AIM designates the processors made by the Apple-IBM-Motorola
alliance and those we typically support.

While here, remove the NetBSD option IPKDB. It's not an option
used by us. Also, PPC_HAVE_FPU is not used by us either. Remove
that too.

Obtained from: Juniper, Semihalf

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)

Cut over to ULE on PowerPC

kern/sched_ule.c - Add __powerpc__ to the list of supported architectures

powerpc/conf/GENERIC - Swap SCHED_4BSD with SCHED_ULE

powerpc/powerpc/genassym.c - Export TD_LOCK field of thread struct

powerpc/powerpc/swtch.S - Handle new 3rd parameter to cpu_switch() by
updating the old thread's lock. Note: uniprocessor-only, will require
modification for MP support.

powerpc/powerpc/vm_machdep.c - Set 3rd param of cpu_switch to mutex of
old thread's lock, making the call a no-op.

Reviewed by: marcel, jeffr (slightly older version)

o Revert the part of if_gem.c rev. 1.35 which added a call to gem_stop()
to gem_attach() as the former access softc members not yet initialized
at that time and gem_reset() actually is enough to stop the chip. [1]
o Revise the use of gem_bitwait(); add bus_barrier() calls before calling
gem_bitwait() to ensure the respective bit has been written before we
starting polling on it and poll for the right bits to change, f.e. even
though we only reset RX we have to actually wait for both GEM_RESET_RX
and GEM_RESET_TX to clear. Add some additional gem_bitwait() calls in
places we've been missing them according to the GEM documentation.
Along with this some excessive DELAYs, which probably only were added
because of bugs in gem_bitwait() and its use in the first place, as
well as as have of an gem_bitwait() reimplementation in gem_reset_tx()
were removed.
o Add gem_reset_rxdma() and use it to deal with GEM_MAC_RX_OVERFLOW errors
more gracefully as unlike gem_init_locked() it resets the RX DMA engine
only, causing no link loss and the FIFOs not to be cleared. Also use it
deal with GEM_INTR_RX_TAG_ERR errors, with previously were unhandled.
This was based on information obtained from the Linux GEM and OpenSolaris
ERI drivers.
o Turn on workarounds for silicon bugs in the Apple GMAC variants.
This was based on information obtained from the Darwin GMAC and Linux GEM
drivers.
o Turn on "infinite" (i.e. maximum 31 * 64 bytes in length) DMA bursts.
This greatly improves especially RX performance.
o Optimize the RX path, this consists of:
- kicking the receiver as soon as we've a spare descriptor in gem_rint()
again instead of just once after all the ready ones have been handled;
- kicking the receiver the right way, i.e. as outlined in the GEM
documentation in batches of 4 and by pointing it to the descriptor
after the last valid one;
- calling gem_rint() before gem_tint() in gem_intr() as gem_tint() may
take quite a while;
- doubling the size of the RX ring to 256 descriptors.
Overall the RX performance of a GEM in a 1GHz Sun Fire V210 was improved
from ~100Mbit/s to ~850Mbit/s.
o In gem_add_rxbuf() don't assign the newly allocated mbuf to rxs_mbuf
before calling bus_dmamap_load_mbuf_sg(), if bus_dmamap_load_mbuf_sg()
fails we'll free the newly allocated mbuf, unable to recycle the
previous one but a NULL pointer dereference instead.
o In gem_init_locked() honor the return value of gem_meminit().
o Simplify gem_ringsize() and dont' return garbage in the default case.
Based on OpenBSD.
o Don't turn on MAC control, MIF and PCS interrupts unless GEM_DEBUG is
defined as we don't need/use these interrupts for operation.
o In gem_start_locked() sync the DMA maps of the descriptor rings before
every kick of the transmitter and not just once after enqueuing all
packets as the NIC might instantly start transmitting after we kicked
it the first time.
o Keep state of the link state and use it to enable or disable the MAC
in gem_mii_statchg() accordingly as well as to return early from
gem_start_locked() in case the link is down. [3]
o Initialize the maximum frame size to a sane value.
o In gem_mii_statchg() enable carrier extension if appropriate.
o Increment if_ierrors in case of an GEM_MAC_RX_OVERFLOW error and in
gem_eint(). [3]
o Handle IFF_ALLMULTI correctly; don't set it if we've turned promiscuous
group mode on and don't clear the flag if we've disabled promiscuous
group mode (these were mostly NOPs though). [2]
o Let gem_eint() also report GEM_INTR_PERR errors.
o Move setting sc_variant from gem_pci_probe() to gem_pci_attach() as
device probe methods are not supposed to touch the softc.
o Collapse sc_inited and sc_pci into bits for sc_flags.
o Add CTASSERTs ensuring that GEM_NRXDESC and GEM_NTXDESC are set to
legal values.
o Correctly set up for 802.3x flow control, though #ifdef out the code
that actually enables it as this needs more testing and mainly a proper
framework to support it.
o Correct and add some conversions from hard-coded functions names to
__func__ which were borked or forgotten in if_gem.c rev. 1.42.
o Use PCIR_BAR instead of a homegrown macro.
o Replace sc_enaddr[6] with sc_enaddr[ETHER_ADDR_LEN].
o In gem_pci_attach() in case attaching fails release the resources in
the opposite order they were allocated.
o Make gem_reset() static to if_gem.c as it's not needed outside that
module.
o Remove the GEM_GIGABIT flag and the associated code; GEM_GIGABIT was
never set and the associated code was in the wrong place.
o Remove sc_mif_config; it was only used to cache the contents of the
respective register within gem_attach().
o Remove the #ifdef'ed out NetBSD/OpenBSD code for establishing a suspend
hook as it will never be used on FreeBSD.
o Also probe Apple Intrepid 2 GMAC and Apple Shasta GMAC, add support for
Apple K2 GMAC. Based on OpenBSD.
o Add support for Sun GBE/P cards, or in other words actually add support
for cards based on GEM to gem(4). This mainly consists of adding support
for the TBI of these chips. Along with this the PHY selection code was
rewritten to hardcode the PHY number for certain configurations as for
example the PHY of the on-board ERI of Blade 1000 shows up twice causing
no link as the second incarnation is isolated.
These changes were ported from OpenBSD with some additional improvements
and modulo some bugs.
o Add code to if_gem_pci.c allowing to read the MAC-address from the VPD on
systems without Open Firmware.
This is an improved version of my variant of the respective code in
if_hme_pci.c
o Now that gem(4) is MI enable it for all archs.

Pointed out by: yongari [1]
Suggested by: rwatson [2], yongari [3]
Tested on: i386 (GEM), powerpc (GMACs by marcel and yongari),
sparc64 (ERI and GEM)
Reviewed by: yongari
Approved by: re (kensmith)

Use the correct expanded name for SCTP.

PR: 116496
Submitted by: koitsu
Reviewed by: rrs
Approved by: re (kensmith)

Enable SCTP by default for GENERIC kernels in order to give it
more exposure. The current state of SCTP implementation is
considered to be ready for 32-bit platforms, but still need some
work/testing on 64-bit platforms.

Approved by: re (kensmith)
Discussed with: rrs

Enable GEOM_PART_MBR by default. On ia64 this replaces GEOM_MBR.

Enable AUDIT by default in the GENERIC kernel, allowing security event
auditing to be turned on without a kernel recompile, just an rc.conf
option.

Approved by: re (kensmith)
Obtained from: TrustedBSD Project

Remove trailing '.' for consistency!

Add UFS_GJOURNAL options to the GENERIC kernel.

Approved by: re (kensmith)

If nooption SMP on powerpc, also nooption ADAPTIVE_SX, which depends on
SMP and is now in the global NOTES.

Add bge(4).
Fix a white-space nit while I'm here.

Include GEOM_LABEL in GENERIC. It's very useful and not well publicized
enough.

Approved by: pjd

Evolve the ctlreq interface added to geom_gpt into a generic
partitioning class that supports multiple schemes. Current
schemes supported are APM (Apple Partition Map) and GPT.
Change all GEOM_APPLE anf GEOM_GPT options into GEOM_PART_APM
and GEOM_PART_GPT (resp).

The ctlreq interface supports verbs to create and destroy
partitioning schemes on a disk; to add, delete and modify
partitions; and to commit or undo changes made.

Add missing SC_NO_MODE_CHANGE option. Disable it in the powerpc
NOTES though, as ofw_syscons(4) doesn't properly interface with
syscons(4) regarding loading the font specified with SC_DFLT_FONT,
causing a kernel with both options SC_OFWFB and SC_NO_MODE_CHANGE
to not link.

Remove the KDTRACE option again because of the complaints about having
it as a default.

For the record, the KDTRACE option caused _no_ additional source files
to be compiled in; certainly no CDDL source files. All it did was to
allow existing BSD licensed kernel files to include one or more CDDL
header files.

By removing this from DEFAULTS, the onus is on a kernel builder to add
the option to the kernel config, possibly by including GENERIC and
customising from there. It means that DTrace won't be a feature
available in FreeBSD by default, which is the way I intended it to be.

Without this option, you can't load the dtrace module (which contains
the dtrace device and the DTrace framework). This is equivalent to
requiring an option in a kernel config before you can load the linux
emulation module, for example.

I think it is a mistake to have DTrace ported to FreeBSD, but not
to have it available to everyone, all the time. The only exception
to this is the companies which distribute systems with FreeBSD embedded.
Those companies will customise their systems anyway. The KDTRACE
option was intended for them, and only them.

Build in kernel support for loading DTrace modules by default. This
adds the hooks that DTrace modules register with, and adds a few functions
which have the dtrace_ prefix to allow the DTrace FBT (function boundary
trace) provider to avoid tracing because they are called from the DTtrace
probe context.

Unlike other forms of tracing and debug, DTrace support in the kernel
incurs negligible run-time cost.

I think the only reason why anyone wouldn't want to have kernel support
enabled for DTrace would be due to the license (CDDL) under which DTrace
is released.

Remove the KSE option now that it's in DEFAULTS on these arches/machines.

The 'nooption' kernel config entry has to be used to turn KSE off now.
This isn't my preferred way of dealing with this, but I'll defer to
scottl's experience with the io/mem kernel option change and the grief
experienced over that.

Submitted by: scottl@

Add 'options KSE' to the kernel config DEFAULTS on all arches/machines
except sun4v.

This change makes the transition from a default to an option more
transparent and is an attempt to head off all the compliants that are
likely from people who don't read UPDATING, based on experience with
the io/mem change.

Submitted by: scottl@

Make KSE a kernel option, turned on by default in all GENERIC
kernel configs except sun4v (which doesn't process signals properly
with KSE).

Reviewed by: davidxu@

Move "device splash" back to MI NOTES and "files", it's MI.

Mechanically kill redundant nodevice/nooption/nomakeoption, i.e.,
those that do not exist in MI NOTES or switched on/off in the MD
NOTES.

- Remove SCHED_ULE from GENERIC to better avoid foot-shooting by
unsuspecting users.
- Add a comment in NOTES about experimental status of SCHED_ULE.
- Make warning about experimental status in sched_ule(4) a bit
stronger.

Suggested and reviewed by: dougb
Discussed on: developers
MFC after: 3 days

Added COMPAT_FREEBSD6 option.

Add device to access and modify Open Firmware NVRAM settings in
PowerPC-based Apple's machines and small utility to do it from
userland modelled after the similar utility in Darwin/OSX.

Only tested on 1.25GHz G4 Mac Mini.

MFC after: 1 month

Remove sio(4) and related options from MI files to amd64, i386
and pc98 MD files. Remove nodevice and nooption lines specific
to sio(4) from ia64, powerpc and sparc64 NOTES. There were no
such lines for arm yet.
sio(4) is usable on less than half the platforms, not counting
a future mips platform. Its presence in MI files is therefore
increasingly becoming a burden.

o Remove device zs
o Remove nodevice uart
o Reorder

o Enable -Werror
o Remove commented-out sio(4)
o Remove zs(4)
o Add scc(4)
o Add uart(4)

Backed out the change by request from rwatson.

PR: kern/14584

The common UID/GID space implementation. It has been discussed on -arch
in 1999, and there are changes to the sysctl names compared to PR,
according to that discussion. The description is in sys/conf/NOTES.
Lines in the GENERIC files are added in commented-out form.
I'll attach the test script I've used to PR.

PR: kern/14584
Submitted by: babkin

Remove COMPAT_43 from GENERIC (and other kernel configs). For amd64 there's
an explicit comment that it's needed for the linuxolator. This is not the
case anymore. For all other architectures there was only a "KEEP THIS".
I'm (and other people too) running a COMPAT_43-less kernel since it's not
necessary anymore for the linuxolator. Roman is running such a kernel for a
for longer time. No problems so far. And I doubt other (newer than ia32
or alpha) architectures really depend on it.

This may result in a small performance increase for some workloads.

If the removal of COMPAT_43 results in a not working program, please
recompile it and all dependencies and try again before reporting a
problem.

The only place where COMPAT_43 is needed (as in: does not compile without
it) is in the (outdated/not usable since too old) svr4 code.

Note: this does not remove the COMPAT_43TTY option.

Nagging by: rdivacky

Some machines have an ESCC. Make sure we build uart(4) with support
for the z8530.

Add the ability to subset the devices that UART pulls in. This allows
the arm to compile without all the extras that don't appear, at least
not in the flavors of ARM I deal with. This helps us save about 100k.

If I've botched the available devices on a platform, please let me
know and I'll correct ASAP.

Add kbdmux(4). This avoids having to use the hint.pcib.1.skipslot=26
trick on a PowerBook G4 and friends to get the USB keyboard as ukbd0.

Move the old BSD4.3 tty compatibility from (!BURN_BRIDGES && COMPAT_43)
to COMPAT_43TTY.

Add COMPAT_43TTY to NOTES and */conf/GENERIC

Compile tty_compat.c only under the new option.

Spit out
#warning "Old BSD tty API used, please upgrade."
if ioctl_compat.h gets #included from userland.

Remove duplicate options (originals in sys/conf/NOTES).

Reported by: fresh config(8)

add LINT build

Discussed with: grehan
MFC after: 1 week

- Allow duplicate "machine" directives with the same arguments.
- Move existing "machine" directives to DEFAULTS.

Create DEFAULTS files for alpha, ia64, powerpc, and sparc64 and move
'device mem' over from GENERIC to DEFAULTS to be consistent with i386 and
amd64. Additionally, on ia64 enable ACPI by default since ia64 requires
acpi.

Create a device node in /dev when a USB keyboard is plugged in.

Reviewed by: grehan

Introduce a kernel config for the Mandatory Access Control framework.
This kernel config briefly describes some of the major MAC policies
available on FreeBSD. The hope is that this will raise the awareness
about MAC and get more people interested.

Discussed with: scottl

Add recently invented COMPAT_FREEBSD5 option.

MFC after: 3 days

Add .cvsignore files just like in sys/<arch>/compiled, this keeps CVS from
questing kernel config files not in CVS.

Approved by: re(kensmith)

- move to SCHED_4BSD per jeffr's comments on SCHED_ULE's state
- enable MSDOSFS
- ehci is stable on the powerbook
- modules have been working for a long time.

Add USB Communication Device Class Ethernet driver. Originally written for
FreeBSD based on aue(4) it was picked by OpenBSD, then from OpenBSD ported
to NetBSD and finally NetBSD version merged with original one goes into
FreeBSD.

Obtained from: http://www.gank.org/freebsd/cdce/
NetBSD
OpenBSD

Add a comment to note that pseudo-device bpf is required for DHCP.
This is mentioned in the Handbook but it is not as obvious to new
users why bpf is needed compared to the other largely self-explanatory
items in GENERIC.

PR: conf/40855
MFC after: 1 week

Reduce annoying SCSI probing delay from 15 to 5 seconds in all GENRIC kernels.

Discussed on: -current

Uncomment options _KPOSIX_PRIORITY_SCHEDULING as it is enabled in the
other architectures, and does not give any problems.

Approved by: grehan (mentor)

Always compile PFIL_HOOKS into the kernel and remove the associated kernel
compile option. All FreeBSD packet filters now use the PFIL_HOOKS API and
thus it becomes a standard part of the network stack.

If no hooks are connected the entire packet filter hooks section and related
activities are jumped over. This removes any performance impact if no hooks
are active.

Both OpenBSD and DragonFlyBSD have integrated PFIL_HOOKS permanently as well.

Instead of "OpenFirmware", "openfirmware", etc. use the official spelling
"Open Firmware" from IEEE 1275 and OpenFirmware.org (no pun intended).

Ok'ed by: tmm

Add /dev/mem and /dev/kmem to powerpc.

Approved by: grehan (mentor)

Making a loadable null.ko for /dev/(null|zero) proved rather
unpopular, so remove this (mis)feature.

Encouragement provided by: jhb (and others)

Remove 'device mem' from GENERIC, which markm@ mistakingly added.
We don't have mem/kmem yet.

Approved by: grehan (mentor)

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.

Empty GENERIC.hints file needed by make release.

Noticed by: Suleiman Souhlal <refugee@segfaulted.com>

In -CURRENT pseudo devices are not statically assigned at compile time,
remove a stale comment.

PR: kern/62285

Add new KDB option, and also drop in long-held fxp/dc eth drivers.

Add option GEOM_GPT. This brings the ability to have a large number of
partitions on a single disk.

Spell Ethernet correctly.

- Recruit some new ULE users by making it the default scheduler in GENERIC.
ULE will be in a probationary period to determine whether it will be left
as the default in 5.3 which would likely mean the rest of the 5.x series.

Add PFIL_HOOKS to the GENERIC kernel configuration, primarily so
that one can load the IPFilter module (which requires PFIL_HOOKS).

Requested by: Many, for over a year

Add syscons options and enable USB, since there is no conflict between
the OpenFirmware console and the syscons console when using a USB
keyboard.

Note that scbus is required for SCSI, not just "required" in general.

Submitted by: Edward Kaplan (tmbg37 on IRC)
Reviewed by: rwatson (in principle)

add scbus for FireWire.

Add FireWire drivers to GENERIC.

Remove bitrot associated with `maxusers'.

Submitted by: bde

Fix whitespace problems with option lines.

Fix the style of the SCHED_4BSD commit.

Not all cpus are MPC750s. Replace the MPC750 cpu option with OEA. This
stands for Operating Environment Architecture and is the specification that
all of the MPC6xx, MPC7xx, MPC7xxx and IBM7xx CPUs adhere to.

Add device zs to GENERIC on powerpc.

Put replace spaces with tabs in keeping with the rest of the file.

- Introduce the SCHED_ULE and SCHED_4BSD options for compile time selection
of the scheduler.
- Add SCHED_4BSD as the scheduler for all kernel config files in cvs.

Remove obsolete GEOM option, and bring diskless options up-to-date

Approved by: benno

Permits UFS ACLs to be used with the GENERIC kernel. Due to recent
ACL configuration changes, this shouldn't result in different code paths
for file systems not explicitly configured for ACLs by the system
administrator. For UFS1, administrators must still recompile their
kernel to add support for extended attributes; for UFS2, it's sufficient
to enable ACLs using tunefs or at mount-time (tunefs preferred for
reliability reasons). UFS2, for a variety of reasons, including
performance and reliability, is the preferred file system for use with
ACLs.

Approved by: re

Remove the P1003_1B kernel option; it is no longer used.

Roll back to previous version, no need for NO_GEOM when GEOM is
standard.

NB: This commit does *NOT* make GEOM the default in FreeBSD
NB: But it will enable it in all kernels not having options "NO_GEOM"

Put the GEOM related options into the intended order.

Add "options NO_GEOM" to all kernel configs apart from NOTES.

In some order of controlled fashion, the NO_GEOM options will be
removed, architecture by architecture in the coming days.

There are currently three known issues which may force people to
need the NO_GEOM option:

boot0cfg/fdisk:
Tries to update the MBR while it is being used to control
slices. GEOM does not allow this as a direct operation.

SCSI floppy drives:
Appearantly the scsi-da driver return "EBUSY" if no media
is inserted. This is wrong, it should return ENXIO.

PC98:
It is unclear if GEOM correctly recognizes all variants of
PC98 disklabels. (Help Wanted! I have neither docs nor HW)

These issues are all being worked.

Sponsored by: DARPA & NAI Labs.

Clean up ddb warnings/errors and enable in GENERIC

Approved by: benno
Motivated by: gallatin

It's Apple GMAC, not HMAC.

Approved by: jake (for sparc64)

Updated to somewhat match sparc64/conf/GENERIC

Approved by: benno

Use "options " rather than "options<tab>".

Fix the link to the Handbook

de-count pci

No more NO_WERROR for the kernel. It's still possible though, but
seperate from NO_WERROR which is easily mixed up with in userland.

Add explicit unit count on 'device pci' for ahc/ahd

Various comment and minor style fixes. No actual content changes.

Inspired by: bde

Bring this in line with what I'm using.

Add ofwd to the GENERIC config for powerpc.

Add makeoptions NO_WERROR=true so that we can build. =)

Allow maxusers to be specified as 0 in the kernel config, which will
cause the system to auto-size to between 32 and 512 depending on the
amount of memory.

MFC after: 1 week

Add memory disk support to allow the boot process to proceed a bit further.

The final commit for the first phase of PowerPC support.

This adds the config stuff needed to build kernels.

Reviewed by: obrien