Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

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

MFC 219886, 226100, 226111, 226341, 242529, 259015, 259016, 259019, 259049,
259071, 259102, 259110, 259129, 259130, 259178, 259179, 259203, 259221,
259261, 259532, 259615, 259650, 259651, 259667, 259680, 259727, 259761,
259772, 259776, 259777, 259830, 259882, 259915, 260160, 260449, 260450,
260688, 260888, 260953, 261269, 261547, 261551, 261552, 261553, 261585
o Merge vt(4) virtual terminal (a.k.a. newcons) to stable/9.
o Merge teken updates.
o Add few more tty methods required by vt(4).
o Update syscons(4) to work with fresh teken.

Sponsored by: The FreeBSD Foundation

MFC r237433:
Implement mechanism to export some kernel timekeeping data to
usermode, using shared page.

MFC r237474:
Stop updating the struct vdso_timehands from even handler executed in
the scheduled task from tc_windup(). Do it directly from tc_windup in
interrupt context.

MFC r239027

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

MFC r230993,230994,230995,230999,231003,231026,231046,231149,231908:
Reduce code duplication in Open Firmware based PCI bus drivers, implement
infrastructure for NEW_PCIB, and switch to using NEW_PCIB by default.

MFC r232177:

Add backlight control to ATI-graphics PowerBooks and iBooks.

Approved by: nwhitehorn (mentor)

MFC r226449:

Add support for special keys (volume/brightness/eject) on Apple laptops with
ADB keyboards.

Approved by: nwhitehorn (mentor)

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Add support for the Blu-Ray drive found in the Sony Playstation 3 and fix
some realted minor bugs in PS3 internal storage support.

Submitted by: glevand <geoffrey.levand@mail.ru>
Approved by: re (bz)

Add an OHCI driver to complement the EHCI one. The infrastructure to attach
both to the parent ps3bus was in r223313. This driver itself comes from the
ps3 project branch.

Driver for PS3's internal hard disk. Hopefully this can be CAM-ified in
the future, but presents a set of simple block devices for now. With
(forthcoming) boot loader support or vfs.root.mountfrom, allows booting
PS3s from disk.

Submitted by: glevand <geoffrey.levand@mail.ru>

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

Approved by: nwhitehorn (mentor)

Missed file in r222613.

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

Approved by: nwhitehorn (mentor)

Factor out the SMU fan management code into a new module (powermac_thermal)
that will connect all of the various sensors and fan control modules on
Apple hardware with software-controlled fans (e.g. all G5 systems).

MFC after: 1 month

Compile in in_cksum* implementations for both IPv6 and IPv6.
While in_pseudo() etc. is often used in offloading feature support,
in_cksum() is mostly used to fix some broken hardware.

Keeping both around for the moment allows us to compile NIC drivers
even in an IPv6 only environment without the need to mangle them
with #ifdef INETs in a way they are not prepared for. This will
leave some dead code paths that will not be exercised for IPv6.

Reviewed by: gnn
Sponsored by: The FreeBSD Foundation
Sponsored by: iXsystems
MFC after: 3 days

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

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 an abstraction layer to the 64-bit AIM MMU's page table manipulation
logic to support modifying the page table through a hypervisor. This
uses KOBJ inheritance to provide subclasses of the base 64-bit AIM MMU
class with additional methods for page table manipulation.

Many thanks to Peter Grehan for suggesting this design and implementing
the MMU KOBJ inheritance mechanism.

Provide a simple IOMMU framework on PowerPC, which is required to support
PPC hypervisors.

Remove use of a separate ofw_pmap on 32-bit CPUs. Many Open Firmware
mappings need to end up in the kernel anyway since the kernel begins
executing in OF context. Separating them adds needless complexity,
especially since the powerpc64 and mmu_oea64 code gave up on it a long
time ago.

As a side effect, the PPC ofw_machdep code is no longer AIM-specific,
so move it to powerpc/ofw.

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)

Add a memory-range interface to /dev/mem on PowerPC using PAT attributes.
Unlike actual MTRR, this only controls the mapping attributes for
subsequent mmap() of /dev/mem. Nonetheless, the support is sufficiently
MTRR-like that Xorg can use it, which translates into an enormous increase
in graphics performance on PowerPC.

MFC after: 2 weeks

Update PowerPC event timer code to use new event timers infrastructure.

Reviewed by: nwitehorn
Tested by: andreast
H/W donated by: Gheorghe Ardelean

Restructure how reset and poweroff are handled on PowerPC systems, since
the existing code was very platform specific, and broken for SMP systems
trying to reboot from KDB.

- Add a new PLATFORM_RESET() method to the platform KOBJ interface, and
migrate existing reset functions into platform modules.
- Modify the OF_reboot() routine to submit the request by hand to avoid
the IPIs involved in the regular openfirmware() routine. This fixes
reboot from KDB on SMP machines.
- Move non-KDB reset and poweroff functions on the Powermac platform
into the relevant power control drivers (cuda, pmu, smu), instead of
using them through the Open Firmware backdoor.
- Rename platform_chrp to platform_powermac since it has become
increasingly Powermac specific. When we gain support for IBM systems,
we will grow a new platform_chrp.

FPU EMU is 32-bit only for now, so mark it as a powerpc-only feature.
This fixes powerpc64 LINT.

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

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.

Unify ABI-related bits of the Book-E and AIM machdep routines
(exec_setregs, etc.) in order to simplify the addition of 64-bit support,
and possible future extension of the Book-E code to handle hard floating
point and Altivec.

MFC after: 1 month

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

Add a driver for the CPU temperature sensors attached over I2C on the
PowerMac 11,2.

Add support for the U4 PCI-Express bridge chipset used in late-generation
Powermac G5 systems. MSI and several other things are not presently
supported.

The U3/U4 internal device support portions of this change were contributed
by Andreas Tobler.

MFC after: 1 week

Move libteken out of the syscons directory.

I initially committed libteken to sys/dev/syscons/teken, but now that
I'm working on a console driver myself, I noticed this was not a good
decision. Move it to sys/teken to make it easier for other drivers to
use a terminal emulator.

Also list teken.c in sys/conf/files, instead of listing it in all the
files.arch files separately.

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.

Keep file list sorted.

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

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

Initial support for SMP on PowerPC MPC85xx.

Tested with Freescale dual-core MPC8572DS development system.

Obtained from: Freescale, Semihalf

Factor out platform dependent things unrelated to device drivers into a
new platform module. These are probed in early boot, and have the
responsibility of determining the layout of physical memory, determining
the CPU timebase frequency, and handling the zoo of SMP mechanisms
found on PowerPC.

Reviewed by: marcel, raj
Book-E parts by: raj

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.

Add an Open Firmware access module for real-mode OF accesses to the PowerPC
build. This is required for the IBM Mambo simulator, as well as a variety
of non-Apple PowerPC hardware.

Modularize the Macintosh built-in ATA along the lines of the rest of the
ATA system as an optional atamacio device.

PR: powerpc/133161
Submitted by: Bruce Cran

PowerPC, meet kernel core dumps. The support is based
on a generic dumper that creates an ELF core file and
uses PMAP functions to scan and iterate over memory
chunks, as well as handle memory mappings used during
dumping.
the PMAP layer can choose to return physical memory
chunks or virtual memory chunks. For minidumps, the
chunks should be virtual.

The default MMU I/F implementation for the scan_md()
method returns NULL. Thus, when a PMAP implementation
does not implement the required methods, an empty
core file is created. Here, empty means having an ELF
header only.

Obtained from: Juniper Networks

Add support for 64-bit PowerPC CPUs operating in the 64-bit bridge mode
provided, for example, on the PowerPC 970 (G5), as well as on related CPUs
like the POWER3 and POWER4.

This also adds support for various built-in hardware found on Apple G5
hardware (e.g. the IBM CPC925 northbridge).

Reviewed by: grehan

Add memmove() to the kernel, making the kernel compile with Clang.

When copying big structures, LLVM generates calls to memmove(), because
it may not be able to figure out whether structures overlap. This caused
linker errors to occur. memmove() is now implemented using bcopy().
Ideally it would be the other way around, but that can be solved in the
future. On ARM we don't do add anything, because it already has
memmove().

Discussed on: arch@
Reviewed by: rdivacky

Include altivec.c, missed on previous commit r188860. This should unbreak the
build.

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

Import an Open Firmware I2C bus module. This attaches firmware device tree
indicated I2C devices, and provides an ofw_bus interface for driver probing.
This should be MI, but is currently provided only on PowerPC due to lack of
sparc64 hardware with an I2C controller.

Discussed on: freebsd-arch

Rework BookE pmap towards multi-core support.

o Eliminate tlb0[] (a s/w copy of TLB0)
- The table contents cannot be maintained reliably in multiple MMU
environments, where asynchronous events (invalidations from other cores)
can change our local TLB0 contents underneath.
- Simplify and optimize TLB flushing: system wide invalidations are
performed using tlbivax instruction (propagates to other cores), for
local MMU invalidations a new optimized routine (assembly) is introduced.

o Improve and simplify TID allocation and management.
- Let each core keep track of its TID allocations.
- Simplify TID recycling, eliminate dead code.
- Drop the now unused powerpc/booke/support.S file.

o Improve page tables management logic.

o Simplify TLB1 manipulation routines.

o Other improvements and polishing.

Obtained from: Freescale, Semihalf

Replace syscons terminal renderer by a new renderer that uses libteken.

Some time ago I started working on a library called libteken, which is
terminal emulator. It does not buffer any screen contents, but only
keeps terminal state, such as cursor position, attributes, etc. It
should implement all escape sequences that are implemented by the
cons25 terminal emulator, but also a fair amount of sequences that are
present in VT100 and xterm.

A lot of random notes, which could be of interest to users/developers:

- Even though I'm leaving the terminal type set to `cons25', users can
do experiments with placing `xterm-color' in /etc/ttys. Because we
only implement a subset of features of xterm, this may cause
artifacts. We should consider extending libteken, because in my
opinion xterm is the way to go. Some missing features:

- Keypad application mode (DECKPAM)
- Character sets (SCS)

- libteken is filled with a fair amount of assertions, but unfortunately
we cannot go into the debugger anymore if we fail them. I've done
development of this library almost entirely in userspace. In
sys/dev/syscons/teken there are two applications that can be helpful
when debugging the code:

- teken_demo: a terminal emulator that can be started from a regular
xterm that emulates a terminal using libteken. This application can
be very useful to debug any rendering issues.

- teken_stress: a stress testing application that emulates random
terminal output. libteken has literally survived multiple terabytes
of random input.

- libteken also includes support for UTF-8, but unfortunately our input
layer and font renderer don't support this. If users want to
experiment with UTF-8 support, they can enable `TEKEN_UTF8' in
teken.h. If you recompile your kernel or the teken_demo application,
you can hold some nice experiments.

- I've left PC98 the way it is right now. The PC98 platform has a custom
syscons renderer, which supports some form of localised input. Maybe
we should port PC98 to libteken by the time syscons supports UTF-8?

- I've removed the `dumb' terminal emulator. It has been broken for
years. It hasn't survived the `struct proc' -> `struct thread'
conversion.

- To prevent confusion among people that want to hack on libteken:
unlike syscons, the state machines that parse the escape sequences are
machine generated. This means that if you want to add new escape
sequences, you have to add an entry to the `sequences' file. This will
cause new entries to be added to `teken_state.h'.

- Any rendering artifacts that didn't occur prior to this commit are by
accident. They should be reported to me, so I can fix them.

Discussed on: current@, hackers@
Discussed with: philip (at 25C3)

Modularize the Open Firmware client interface to allow run-time switching
of OFW access semantics, in order to allow future support for real-mode
OF access and flattened device frees. OF client interface modules are
implemented using KOBJ, in a similar way to the PPC PMAP modules.

Because we need Open Firmware to be available before mutexes can be used on
sparc64, changes are also included to allow KOBJ to be used very early in
the boot process by only using the mutex once we know it has been initialized.

Reviewed by: marius, grehan

Switch to ath hal source code. Note this removes the ath_hal
module; the ath module now brings in the hal support. Kernel
config files are almost backwards compatible; supplying

device ath_hal

gives you the same chip support that the binary hal did but you
must also include

options AH_SUPPORT_AR5416

to enable the extended format descriptors used by 11n parts.
It is now possible to control the chip support included in a
build by specifying exactly which chips are to be supported
in the config file; consult ath_hal(4) for information.

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)

Add a driver for flash memory that implements to the Common Flash
Memory Interface (CFI). The flash memory can be read and written
to through /dev/cfi# and an ioctl() exists so processes can read
the query information.
The driver supports the AMD and Intel command set, though only
the AMD command has been tested.

Obtained from: Juniper Networks, Inc.

Add a driver for the Local Bus Controller.

Obtained from: Juniper Networks, Inc.

Convert PowerPC AIM PCI and nexus busses to standard OFW bus interface. This
simplifies certain device attachments (Kauai ATA, for instance), and makes
possible others on new hardware.

On G5 systems, there are several otherwise standard PCI devices
(Serverworks SATA) that will not allow their interrupt properties to be
written, so this information must be supplied directly from Open Firmware.

Obtained from: sparc64

Add DMA support for Apple built-in ATA controllers.

Tested by: grehan, marcotrillo@gmail.com
MFC after: 1 month

tsec: Refactor driver's structure.

Split the driver into the core functionality part (sys/dev/tsec/if_tsec.c) and
the bus attachment (sys/dev/tsec/if_tsec_ocp.c).

This lets better integrate and maintain the driver in other environments with
different attachment abstractions (there is at least one other FreeBSD port --
MPC83xx -- which uses this TSEC driver, but with different local bus model
i.e. some OF derivative). While there, clean up and fix minor cosmetics.

Obtained from: Semihalf

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

Submitted by: Nathan Whitehorn

Add support for Apple's Descriptor-Based DMA (DBDMA) engine. The DMA
engine is usful to various existing drivers, such as ata(4) and scc(4),
and is used bhy the soon to be added bm(4).

Submitted by: Nathan Whitehorn

mp_machdep.c is only conditional upon smp, not aim. If booke grows
support for smp, mp_machdep.c needs to be included as well.

MFp4: SMP support

Introduce a dedicated file for MPC85xx-specific routines. Move cpu_reset()
there, as it's not relevant to Book-E specification, but is an implementation
detail, directly dependent on the given SoC version.

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

Hook-up the FPU emulator. It's optional upon FPU_EMU.

Enable ofwdump on powerpc (finally). Tested on G3 & G4 machines.

Submitted by: Dan Stekloff <dsteklof at c i s c o dot com>
Discussed with: marcel

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

Make files under src/sys/powerpc/aim, as well as Open Firmware related
files dependent upon option/cpu AIM. This is in preparation of adding
support for Book-E (e500) support.

Obtained from: Juniper, Semihalf

Sort.

Update file list after repocopying select files from
src/sys/powerpc/powerpc to src/sys/powerpc/aim.

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)

Align.

Commit the change from FAST_IPSEC to IPSEC. The FAST_IPSEC
option is now deprecated, as well as the KAME IPsec code.
What was FAST_IPSEC is now IPSEC.

Approved by: re
Sponsored by: Secure Computing

sort.

Be more conservative and compile libkern/memset.c only on architectures
than need it. These are i386, amd64 and powerpc so far.

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.

opt_ah.h ends up copied into a kernelcompile directory in some
aches as a read-only file. In a number of cases this has led to
compiles failing- usually due to some strange NFS drift which thinks
that the opt_ah.h in the compile directory is out of date wrt the
source it is copied from. When the copy is executed again, it fails
because the target is read-only. Oops. Modify the compile hooks
avoid this.

Discussed with a while back with: Sam Leffler

Move MI parts of syscons into MI "files".

Remove file that snuck in accidentally in Marcel's gdb commit.

Add skeletal support for GDB. In particular gdb_cpu_getreg() needs
implementing to make GDB support usable.

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 zs(4). It has been replaced by scc(4) & uart(4).

Replace sio_iobus.c with uart_iobus.c.

add glue for ath_hal

MFC after: 1 month

Revert previous commit. It's not part of the ppc(4) changes.

o Move ISA specific code from ppc.c to ppc_isa.c -- a bus front-
end for isa(4).
o Add a seperate bus frontend for acpi(4) and allow ISA DMA for
it when ISA is configured in the kernel. This allows acpi(4)
attachments in non-ISA configurations, as is possible for ia64.
o Add a seperate bus frontend for pci(4) and detect known single
port parallel cards.
o Merge PC98 specific changes under pc98/cbus into the MI driver.
The changes are minor enough for conditional compilation and
in this form invites better abstraction.
o Have ppc(4) usabled on all platforms, now that ISA specifics
are untangled enough.

Add the MacIO attachment for scc(4).

Allow uart(4) to be built on PowerPC.

Retire NETSMBCRYPTO as a kernel option and make its functionality
enabled by default in NETSMB and smbfs.ko.

With the most of modern SMB providers requiring encryption by
default, there is little sense left in keeping the crypto part
of NETSMB optional at the build time.

This will also return smbfs.ko to its former properties users
are rather accustomed to.

Discussed with: freebsd-stable, re (scottl)
Not objected by: bp, tjr (silence)
MFC after: 5 days

Make config(8) understand ORed dependecies in "files*" and
improve tracking of known devices. Bump config(8) version.

Move zs.c from files to files.powerpc as zs(4) by now is only supported
on powerpc (more or less...). That way people updating from FreeBSD 5 to
FreeBSD 6 and beyond on sparc64 will get an error from config(8) rather
than a mysterious compile error when they have a stale 'device zs' in
their kernel config file.

MFC after: 2 weeks

- Add a new method ofw_bus_default_get_devinfo() that allows to retrieve
a newly introduced struct ofw_bus_devinfo which can hold the OFW info
of a device recallable via the ofw_bus KOBJ interface. Introduce a set
of functions ofw_bus_gen_get_*() which use ofw_bus_default_get_devinfo()
to provide generic subroutines for implementing the rest of the ofw_bus
KOBJ interface in a bus driver.
This is inspired by bus_get_resource_list() and bus_generic_rl_*_resource()
and allows to reduce code duplication in bus drivers as they only have
to provide an ofw_bus_default_get_devinfo() implementation in order to
provide the ofw_bus KOBJ interface via ofw_bus_gen_get_*().
- While here add a comment to ofw_bus_if.m describing the intention of
the ofw_bus KOBJ interface.

Reviewed by: marcel

Insert a layer of indirection to the pmap code, using a kobj for
the interface. This allows run-time selection of MMU code, based
on CPU-type detection, or tunable-overrides when testing new code.

Pre-requisite for G5 support.

conf/files.powerpc
- remove pmap.c
- add mmu_if.h, mmu_oea.c, pmap_dispatch.c

powerpc/include/mmuvar.h
- definitions for MMU implementations

powerpc/include/pmap.h
- remove pmap_pte_spill declaration
- add pmap_mmu_install declaration
- size the phys_avail array
- pmap_bootstrapped is now global-scope

powerpc/powerpc/machdep.c
- call kobj_machdep_init early in the boot sequence to allow
kobj usage prior to SI_SUB_LOCK
- install the OEA pmap code. This will be moved to CPU-specific
init code in the future.

powerpc/powerpc/mmu_if.m
- Kobj MMU interface definitions

powerpc/powerpc/pmap_dispatch.c
- central dispatch for pmap calls
- contains the global mmu kobj and the routine to locate the
the mmu implementation and init the kobj

Refactor the NETSMBCRYPTO option so that it does the same on all
platforms. ARM is excluded as it doesn't yet have any crypto
sources.

Approved by: re (dwhite)
MFC after: 1 day

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.

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

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

Approved by: grehan (mentor)

- Introduce an ofw_bus kobj-interface for retrieving the OFW node and a
subset ("compatible", "device_type", "model" and "name") of the standard
properties in drivers for devices on Open Firmware supported busses. The
standard properties "reg", "interrupts" und "address" are not covered by
this interface because they are only of interest in the respective bridge
code. There's a remaining standard property "status" which is unclear how
to support properly but which also isn't used in FreeBSD at present.
This ofw_bus kobj-interface allows to replace the various (ebus_get_node(),
ofw_pci_get_node(), etc.) and partially inconsistent (central_get_type()
vs. sbus_get_device_type(), etc.) existing IVAR ones with a common one.
This in turn allows to simplify and remove code-duplication in drivers for
devices that can hang off of more than one OFW supported bus.
- Convert the sparc64 Central, EBus, FHC, PCI and SBus bus drivers and the
drivers for their children to use the ofw_bus kobj-interface. The IVAR-
interfaces of the Central, EBus and FHC are entirely replaced by this. The
PCI bus driver used its own kobj-interface and now also uses the ofw_bus
one. The IVARs special to the SBus, e.g. for retrieving the burst size,
remain.
Beware: this causes an ABI-breakage for modules of drivers which used the
IVAR-interfaces, i.e. esp(4), hme(4), isp(4) and uart(4), which need to be
recompiled.
The style-inconsistencies introduced in some of the bus drivers will be
fixed by tmm@ in a generic clean-up of the respective drivers later (he
requested to add the changes in the "new" style).
- Convert the powerpc MacIO bus driver and the drivers for its children to
use the ofw_bus kobj-interface. This invloves removing the IVARs related
to the "reg" property which were unused and a leftover from the NetBSD
origini of the code. There's no ABI-breakage caused by this because none
of these driver are currently built as modules.
There are other powerpc bus drivers which can be converted to the ofw_bus
kobj-interface, e.g. the PCI bus driver, which should be done together
with converting powerpc to use the OFW PCI code from sparc64.
- Make the SBus and FHC front-end of zs(4) and the sparc64 eeprom(4) take
advantage of the ofw_bus kobj-interface and simplify them a bit.

Reviewed by: grehan, tmm
Approved by: re (scottl)
Discussed with: tmm
Tested with: Sun AX1105, AXe, Ultra 2, Ultra 60; PPC cross-build on i386

db_memrw.c has been subsumed into db_interface.c ala sparc64

Fix build for non-WITNESS case

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

Add an implementation of uiomove_fromphys() for PowerPC. This
implementation uses the direct virtual-to-physical mapping.

Discussed with: grehan

Work-in-progress for the 'Kauai' ATA device in Mac notebooks. The
device seems to be the macio ATA cell with a PCI front-end, and
has no relation to PIIX-style ATA/PCI devices.

Implement UMA_MD_SMALL_ALLOC, since the BAT registers allow direct
addressing of memory. Makes a substantial improvement for apps that
stress the limited amount of KVM on PPC (e.g. untarring the ports tree).

uma_machdep.c stolen from amd64/ia64.

Add syscons files, and also generate a syscons font since Apple
SVGA adapters don't have one available in their ROMs.

- add openpic macio and psim/iobus attachments
- alpha sort powermac files

Add ffsl(), fls() flsl() to platforms that don't already have them.

Hook grackle system controller/heathrow interrupt controller to PPC build.

Standardize handling of locore.[sS] etc. files.

Submitted by: jake, bde, ru

Add apple partition map GEOM module

Add a driver that attaches to the gpio node of macio and allows you to enter
DDB when the interrupt button (aka the "programmer's switch") is pressed.

This isn't unfortunately an NMI, but it's a handy way to get into DDB
quickly if needed.

Add cpu.c. This contains one exported function, cpu_setup(), which handles
setup of and printing information about cpus.

Obtained from: NetBSD (parts)

Build glue for zs_macio.

NO_GEOM cleanup: remove subr_disklabel.c from powerpc and x86_64.

Convert remaining .s files to .S

Approved by: benno

Remove subr_diskslice.c and subr_diskmbr.c which I can find no trace of
why should be needed in the powerpc files. Not compile tested.

Move subr_disklabel.c and subr_diskslice.c from being MI to MD files,
so that they can be left out where they are unneeded.

Add a pcib variant to allow us to fix up interrupt assignments.

We probably want to do something wrt bus enumeration as well at some point.

- added macio and psim files
- removed unused extintr.c

Approved by: benno

Add setjmp (needed for DDB).

Add DDB support.

Driver for the Apple UniNorth Host-PCI bridge.

This is in a PowerMac-specific subdirectory as it is hoped that we will support
more than just the PowerMac platform.

Add ofw_pci.c in the pci case.

1) Add busdma machdep code.
2) Add bus_pio.h and bus_memio.h (which do nothing).

Submitted by: Peter Grehan <peterg@ptree32.com.au> (1)

Driver for OpenPIC compatible interrupt controllers.
It's fairly PowerMac specific at the moment, but that should be fixable.

Add interrupt handling support code.

I've tried to make this fairly platform-independant as some PowerPC platforms
may not have openpic-style interrupt controllers. This may not have the best
performance but it works for now.

Add in_cksum.c

Many fixes to low-level trap and interrupt handling:

- Tidy up clock code. Don't repeatedly call hardclock().
- Remove intrnames, decrnest and intrcnt from locore.s
- Coalesce all trap handling into a single stub that then calls a dispatch
function.

Submitted by: Peter Grehan <peterg@ptree32.com.au>

Build the fpu support routines.

Add sigcode.S

Add ofwd to the GENERIC config for powerpc.

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

Collect all functions for copying to and from userspace into the one file.

This allows me to reimplement [sf]u{byte,word} as separate functions and not
as calls to copy{in,out}.

- Speedup 3DES by using assembly code for i386.
- Sync des/blowfish to more recent openssl.

Obtained from: KAME/NetBSD
MFC after: 2 weeks

Move procfs_* from procfs_machdep.c into sys_process.c, and rename them to
proc_* in the process; procfs_machdep.c is no longer needed.

Run-tested on i386, build-tested on Alpha, untested on other platforms.

Oops, this was meant to be done in a later commit but I goofed.

This commit was meant to add entries for extintr.c (used partially by the
new clock/timecounter which is coming in a later commit) and entries for
bits of DDB source, which is also coming soon.

Add -msoft-float to COPTS to stop GCC attempting to be "smart" and using
floating point registers for various optimisation tweaks.

The final commit for the first phase of PowerPC support.

This adds the config stuff needed to build kernels.

Reviewed by: obrien