Add mips fenv.h (From FreeBSD)

branches: 1.21.4;
Rename sljitarch.h to sljit_machdep.h.

branches: 1.20.2;
Enable sljit and bpfjit on powerpc.

branches: 1.19.112; 1.19.122; 1.19.128;
merge ktrace-lwp.

Reorganize the way powerpc port install machine specific headers.
Use <powerpc/oea/bat.h> exclusively and remove <machine/bat.h> and
<powerpc/bat.h>. Remove unneeded <machine/cpufunc.h>. To insure
1:1 correspondence of <powerpc/FOO.h> to <machine/FOO.h> include
"../../powerpc/include/Makefile" in "arch/FOO/include/Makefile".
Incororpate <byte_swap.h> into <bswap.h> and then byte_swap.h

branches: 1.17.2;
Merge the nathanw_sa branch.

Remove KDIR=, since SYS_INCLUDE=symlinks and KDIR are not supported any more.

don't install a couple headers that are of no use in userland.

Implement pmc(9) -- An interface to hardware performance monitoring
counters. These counters do not exist on all CPUs, but where they
do exist, can be used for counting events such as dcache misses that
would otherwise be difficult or impossible to instrument by code
inspection or hardware simulation.

pmc(9) is meant to be a general interface. Initially, the Intel XScale
counters are the only ones supported.

branches: 1.13.2; 1.13.10;
Need to install intr.h.

branches: 1.12.2; 1.12.6;
PPC machine type tags haven't been used for a while.

Add definitions of C99 integer format conversion macros.
XXX Fastest minimum-width integer types haven't been decided upon yet.

Add definitions of C99 specified-width integer type limits.
XXX Fastest minimum-width integer types haven't been decided upon yet.

Add definitions of C99 integer constant macros.
Tidy Makefiles up a little.

Add definitions of C99 minimum-width and greatest-width integer types.
XXX Fastest minimum-width integer types haven't been decided upon yet.

branches: 1.7.2;
Add <machine/int_types.h>, which provides namespace-pure definitions
of exact-width integer types.

Require that each each MACHINE/MACHINE_ARCH supply a lock.h. This file
contains the values __SIMPLELOCK_LOCKED and __SIMPLELOCK_UNLOCKED, which
replace the old SIMPLELOCK_LOCKED and SIMPLELOCK_UNLOCKED. These files
are also required to supply inline functions __cpu_simple_lock(),
__cpu_simple_lock_try(), and __cpu_simple_unlock() if locking is to be
supported on that platform (i.e. if MULTIPROCESSOR is defined in the
_KERNEL case). Change these functions to take an int * (&alp->lock_data)
rather than the struct simplelock * itself.

These changes make it possible for userland to use the locking primitives
by including <machine/lock.h>.

Install "machineendian_machdep.h".

C99: Define a NAN macro in <math.h> which evaulates to a constant expression of
a single-precision quiet NaN; only to be defined on platforms that do support
this value.

branches: 1.3.8;
Move the bswap functions from libutil to libc (this bups the
minor of libc and the major of libutil). For little-endian architectures
merge the bnswap() assembly versions with nto* and hton* using symbols
aliasing. Use symbol renaming for the bswap function in this case to avoid
namespace pollution.
Declare bswap* in machine/bswap.h, not machine/endian.h. For little-endian
machines, common code for inline macros go in machine/byte_swap.h
Sync libkern with libc.
Adjust #include in kernel sources for machine/bswap.h.

Not used.

Rework the way kernel include files are installed. In the new method,
as with user-land programs, include files are installed by each directory
in the tree that has includes to install. (This allows more flexibility
as to what gets installed, makes 'partial installs' easier, and gives us
more options as to which machines' includes get installed at any given
time.) The old SYS_INCLUDES={symlinks,copies} behaviours are _both_
still supported, though at least one bug in the 'symlinks' case is
fixed by this change. Include files can't be build before installation,
so directories that have includes as targets (e.g. dev/pci) have to move
those targets into a different Makefile.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Remove <machine/atomic.h>; use <sys/atomic.h> instead.
Add <powerpc/cpuset.h> (for mpc85xx pmap).
Add some initial MP code for mpc85xx
Rework ipi code to be common across all ppcs
Change PPC to keep curlwp in %r13 while in the kernel.
Move astpending from cpu_info to mdlwp
Improve cpu_need_resched to be more MP friendly.

branches: 1.2.100; 1.2.106; 1.2.110;
merge ktrace-lwp.

branches: 1.1.4;
Reorganize the way powerpc port install machine specific headers.
Use <powerpc/oea/bat.h> exclusively and remove <machine/bat.h> and
<powerpc/bat.h>. Remove unneeded <machine/cpufunc.h>. To insure
1:1 correspondence of <powerpc/FOO.h> to <machine/FOO.h> include
"../../powerpc/include/Makefile" in "arch/FOO/include/Makefile".
Incororpate <byte_swap.h> into <bswap.h> and then byte_swap.h

Move the at-shutdown call to resettodr() from cpu_reboot() to kern_reboot().

It's a small step, but it's a step.

Un-do a bunch of misguided code sharing. It's not really shared if it's
full of platform-specific #ifdefs:
- ofwoea_batinit() is gone; just do what's needed early in macppc / ofppc
initppc() functions.
- Get a bunch of Mac-specific stuff out of ofwoea_initppc().

branches: 1.17.2;
It turned out that using some Open Firmware routines causes the system
freeze after calling OF_quiesce().

This is why setting color palette crash the system for some Power Mac G5
models, like PowerMac11,2.

Therefore, stop using color-palette and backlight callbacks for genfb(4)
in this case.

Also, postpone OF_quiesce() after rascons_init_rasops(), and initialize
color palette there if OF is going to be quiesced and color depth is 8.

Now, color palette for wscons is initialized correctly for PowerMac11,2.

workaround a problem with the pegasos firmware interface:
attempting to use /dev/openfirm on this machine hangs hard.

this isn't a new problem, and i've been meaning to try to
figure it out for years, but it's become a problem since
the xf86-video-radeon driver gained code to look for the
macppc model using this interface.

this is why xorg-server 1.18 and 1.20 hang recently on the
pegasosII.


this change is fairly ugly but i couldn't think of a less
ugly method to avoid /dev/openfirm working just on this
one platform. introduce new __OPENFIRMIO_OPEN_CHECK_BROKEN
macro and associated __openfirmio_open_check_broken(), and
use them in the new openfirmopen() to fail opens.

include proplib.h in macppc and ofppc autoconf.h since they
use it.

branches: 1.15.52; 1.15.54;
#include <sys/bus.h> instead of <machine/bus.h>.

struct device * -> device_t
struct cfdata * -> cfdata_t
use device accessors, use device_private.
some softc/device_t splits (macppc needs a bunch more)
aprint*_dev used considerably more

branches: 1.13.36;
SMP support for ofppc. (finally) Much thanks to Matt Thomas for help in
figuring out all the crazy nuances of getting this working, and to
Michael Lorenz for testing/fixing my changes on macppc. Tested with a
quad-proc 7044-270.
Summary of changes:

Bumped CPU_MAXNUM to 16 on ofppc.
Added md_* routines to ofppc/cpu.c, to sync the timebase, and awaken the CPUs.
Fixed a bug in the test for a 64bit bridge cpu early in locore.S
Added code to set the interrupt priority for all CPUs with an openpic.
Change rtas to probe before cpus, to allow use of the rtas freeze/thaw
timebase code routines.
Fix CPU_INFO_FOREACH macro to iterate through detected cpus, not CPU_MAXNUM.
Change most uses of ci_cpuid to ci_index, to deal with CPUs that do not allow
writing to SPR_PIR. Don't write SPR_PIR unless the secondary cpu identifies
itself as 0.
Change the hatchstack/interrupt stack allocations to allocate a 8192byte
interrupt stack, and a 4096 byte hatch stack, align them to 16 bytes, and
allocate them no lower than 0x10000. Allocate them separately to prevent the
hatch stack corrupting the interrupt stack later on.
If the CPU is a 64bit cpu, copy SPR_ASR in cpu_hatch()
Set the idle stack to ci->ci_data.cpu_idlelwp->l_addr->u_pcb.pcb_sp.
Add OF_start_cpu(). Add a routine to ofwoea_initppc to spin up secondary
procs early, and place them into a spinloop waiting for the hatch routines
to be ready.
Modify the ipi routines to deal with openpics that reverse byte order on read
from an ipi register. (such as on the 7044)
Change the rtas setup to allocate the rtas physical base address above
the kernel, to avoid mucking up the hatch/interrupt stacks.

branches: 1.12.6;
Use model_init to clean up how we decide the ranges for
PCI_NETBSD_CONFIGURE. Add some code to hopefully better handle the
firepower and powerstackII, based on the OFW dumps from those machines.
Untested on those machines, but doesn't break anything on pegasos/7044.

Add support to ofppc for the IBM 7044-270 machine. This is a POWER3-II
based machine. Currently the kernel to run on this machine is
incompatible with the standard GENERIC kernel, so for now, we have a
separate GENERIC_B64. Eventually, I hope to combine the two.

Please note, this is a port of 32bit ofppc, not a powerpc64 port.

Thanks to Matt Thomas and Kevin Bowling for helping to make this port
possible.

Summary of changes:

Change ofwpci to use the ofmethod config for configuring the PCI bus,
rather than indirect configuration.
Move the wiring of the interrupt controllers from at the start of the
boot, into the configuration of the first PCI bus.
Rewrite the map_isa_ioregs() hack to work on a machine without BATs
Fix a ton of bugs in the genofw_find_pics routine, and in the map_space code.
Split the pic_openpic into openpic_common and pic_openpic.
Create a new pic_distopenpic driver, for the distributed openpic found on
some newer IBM machines.
Fix a bad panic in pmap_extract on 64bit bridge mode

branches: 1.10.6;
Apply a set of patches from Frank Wille to make the genfb attachment work
better on ofppc. In doing so, we also move a few functions around in
macppc and the generic ofw powerpc stuff to allow better sharing of code.
Also, introduce a model_init function.

move ofb_cons.c from macppc/dev to powerpc/oea and rename it to rascons.
This gets rid of some naming confusion, and makes it OFW-MI rather than
macppc specific.

Add code to detect and initialize the com port correctly, so that we have an
actual real console when booting.

Convert ofppc to the shared ofw_autoconf.c

branches: 1.7.2;
Add a bunch of fixes and minor rewrites to ofppc to bring it closer to
working properly. This is still a work in progress, and all work so far
has been based on the PegasosII machne.

1) Rewrite how the ISA memory and IO space maps are found. More work
will still need to be done in this area.
2) Add a new OFW method of pci configuration. So far I can only get this
to work on the primary PCI bus on the Pegasos. Unsure if this is a
pegasos bug or a code bug.
3) Add the rtas device to ofppc, and add an "rtas_reboot" function to
rtas to allow me to reboot the PegasosII. The rtas driver works, and is
a great start but needs to be changed slightly to allow easier access to
the functions from outside the driver.
4) Fix a number of bugs that existed in the shared PCI code for ofw that
probably weren't tickled by macppc.

There is much much more left to do here, this is all still a work in
progress, but this commit will allow other people to play around with the
code if they want to.

Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.5.22; 1.5.64; 1.5.72; 1.5.82; 1.5.84; 1.5.86; 1.5.88;
implement device_register() for ofppc.
use ofcons_cnprobe().

Peform a rototill over the powerpc-based ports.

Move the trap/vector initialization for MPC6xx ports to mpc6xx_machdep.c
Also move softnet, install_extintr, mapiodev, kvtop. Add common BAT
initialization code.

Add user Altivec support.

Fix calls to OF_call_method in macppc/macppc/machdep.c.

Use ci_fpuproc in cpu_info instead of separate fpuproc.

Add separate syscall.c and defined __HAVE_SYSCALL_INTERN.

branches: 1.3.4; 1.3.12;
Begin the task of splitting up the ofppc port into common code
and platform-specific code, similar to how the Alpha port is
split up.

Fetch the platform name earlier, so we can determine what kind of
system we're running on earlier.

branches: 1.1.4;
Make all powerpc ports use a common Makefile.powerpc (except walnut)
Enforce -Wmissing-prototypes -Wstrict-prototypes for all ppc ports.
Split out macppc cpu support and make common to mpc6xx ports. Make
other mpc6xx ports use it. Add evcnts for mpc6xx traps.

Reorganize the way powerpc port install machine specific headers.
Use <powerpc/oea/bat.h> exclusively and remove <machine/bat.h> and
<powerpc/bat.h>. Remove unneeded <machine/cpufunc.h>. To insure
1:1 correspondence of <powerpc/FOO.h> to <machine/FOO.h> include
"../../powerpc/include/Makefile" in "arch/FOO/include/Makefile".
Incororpate <byte_swap.h> into <bswap.h> and then byte_swap.h

branches: 1.1.48;
Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Include <sys/bswap.h> for function prototypes. i386, pc532 and vax
still include <machine/byte_swap.h> and define macros for some of
the bswap*() functions.

Move the bswap functions from libutil to libc (this bups the
minor of libc and the major of libutil). For little-endian architectures
merge the bnswap() assembly versions with nto* and hton* using symbols
aliasing. Use symbol renaming for the bswap function in this case to avoid
namespace pollution.
Declare bswap* in machine/bswap.h, not machine/endian.h. For little-endian
machines, common code for inline macros go in machine/byte_swap.h
Sync libkern with libc.
Adjust #include in kernel sources for machine/bswap.h.

Enable new-style <sys/bus.h> on several PowerPC ports supporting PCI
buses. Make non-inline implementations of bus_space(9) and bus_dma(9)
routines and move them to appropriate .c files.

This may leave amigappc in a bad state, sorry. Fortunately, it will be
easy to repair by imitating the bus.h -> bus_{defs,funcs}.h split in
some other PowerPC port.

Reorder the includes in bus.h to be correct, and add the missing defines for
PHYS_TO_BUS_MEM and BUS_MEM_TO_PHYS. Noticed by Frank Wille.

Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.10.2; 1.10.10; 1.10.18; 1.10.20; 1.10.22; 1.10.24;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

add a pair of new bus_dma(9) functions:
int _bus_dmatag_subregion(bus_dma_tag_t tag,
bus_addr_t min_addr,
bus_addr_t max_addr,
bus_dma_tag_t *newtag,
int flags)
void _bus_dmatag_destroy(bus_dma_tag_t tag)

that allow a (normally broken/limited) device to restrict the bus address
range it can talk to. this is used by bce(4) to limit DMA addresses to
1GB range, the maximum the chip can address.

all this is from Yorick Hardy <yhardy@uj.ac.za> with input from several
people on tech-kern.

XXX: bus_dma(9) needs an update still.

branches: 1.8.26;
merge ktrace-lwp.

branches: 1.7.4;
Add a dm_maxsegsz public member to bus_dmamap_t. This allows a user of the API
to select the maximum segment size for each bus_dmamap_load (up to the maxsegsz
supplied to bus_dmamap_create). dm_maxsegsz is reset to the value supplied to
bus_dmamap_create when the dmamap is unloaded.

branches: 1.6.8; 1.6.10;
Add _bus_dma_phys_to_bus_mem_generic and _bus_dma_bus_mem_to_phys_generic.

branches: 1.5.2;
s/PHYS_TO_PCI_MEM/PHYS_TO_BUS_MEM/
s/PCI_MEM_TO_PHYS/BUS_MEM_TO_PHYS/
to match generic PPC code

Noticed by Nicolas Ollinger

Handle 64bit DMA addresses on PCI for platforms that can (currently only
enabled on amd64). Add a dmat64 field to various PCI attach structures,
and pass it down where needed. Implement a simple new function called
pci_dma64_available(pa) to test if 64bit DMA addresses may be used.
This returns 1 iff _PCI_HAVE_DMA64 is defined in <machine/pci_machdep.h>,
and there is more than 4G of memory.

Introduce BUS_DMA_NOCACHE, and bus_dmamem_map() of i386 supports it.

fix printf format string.

branches: 1.1.2; 1.1.4; 1.1.6;
Check in of work-in-progress of Firepower native device support.
We can find devices in PCI configuration space, but not much else.

Per discussion at
<http://mail-index.netbsd.org/tech-kern/2010/04/02/msg007941.html>,
divide each machine's bus.h into bus_defs.h (constants & data types)
and bus_funcs.h (macro implementations of bus_space(9) routines and MD
prototypes).

Note that some bus_space(9) routines' implementation will move to .c
files from inline subroutines or macros in .h files.

I've only made the split for machine architectures where there is PCI.
All of the non-PCI-having architectures will require a similar split.

These #include files are not referenced by any (committed) Makefiles or
header files, yet. Changes to Makefiles, to <sys/bus.h>, and to some
more machine-dependent files will dribble in before I throw the switch.

Per discussion at
<http://mail-index.netbsd.org/tech-kern/2010/04/02/msg007941.html>,
divide each machine's bus.h into bus_defs.h (constants & data types)
and bus_funcs.h (macro implementations of bus_space(9) routines and MD
prototypes).

Note that some bus_space(9) routines' implementation will move to .c
files from inline subroutines or macros in .h files.

I've only made the split for machine architectures where there is PCI.
All of the non-PCI-having architectures will require a similar split.

These #include files are not referenced by any (committed) Makefiles or
header files, yet. Changes to Makefiles, to <sys/bus.h>, and to some
more machine-dependent files will dribble in before I throw the switch.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Don't expose port-specific if _MODULE is defined.
Don't _MACHINE_CPU_H_, _<PORT>_CPU_H_

branches: 1.23.36;
SMP support for ofppc. (finally) Much thanks to Matt Thomas for help in
figuring out all the crazy nuances of getting this working, and to
Michael Lorenz for testing/fixing my changes on macppc. Tested with a
quad-proc 7044-270.
Summary of changes:

Bumped CPU_MAXNUM to 16 on ofppc.
Added md_* routines to ofppc/cpu.c, to sync the timebase, and awaken the CPUs.
Fixed a bug in the test for a 64bit bridge cpu early in locore.S
Added code to set the interrupt priority for all CPUs with an openpic.
Change rtas to probe before cpus, to allow use of the rtas freeze/thaw
timebase code routines.
Fix CPU_INFO_FOREACH macro to iterate through detected cpus, not CPU_MAXNUM.
Change most uses of ci_cpuid to ci_index, to deal with CPUs that do not allow
writing to SPR_PIR. Don't write SPR_PIR unless the secondary cpu identifies
itself as 0.
Change the hatchstack/interrupt stack allocations to allocate a 8192byte
interrupt stack, and a 4096 byte hatch stack, align them to 16 bytes, and
allocate them no lower than 0x10000. Allocate them separately to prevent the
hatch stack corrupting the interrupt stack later on.
If the CPU is a 64bit cpu, copy SPR_ASR in cpu_hatch()
Set the idle stack to ci->ci_data.cpu_idlelwp->l_addr->u_pcb.pcb_sp.
Add OF_start_cpu(). Add a routine to ofwoea_initppc to spin up secondary
procs early, and place them into a spinloop waiting for the hatch routines
to be ready.
Modify the ipi routines to deal with openpics that reverse byte order on read
from an ipi register. (such as on the 7044)
Change the rtas setup to allocate the rtas physical base address above
the kernel, to avoid mucking up the hatch/interrupt stacks.

branches: 1.22.6;
Add some simple code to print out what the OFW thinks the cache
configuration of the machine is. Amusingly, the OFW on the pegasos is
dead wrong.

Bump CPU_MAXNUM to 8, because, thats probably a reasonable number for now.

branches: 1.21.2;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.20.2; 1.20.4;
Put the declaration of cpu_softc and #include of sys/device.h inside
#ifdef _KERNEL to reduce the namespace pollution from proplib which
causes build failure in libexec/ld.elf_so.

branches: 1.19.22; 1.19.64; 1.19.72; 1.19.78; 1.19.82; 1.19.84;
implement device_register() for ofppc.
use ofcons_cnprobe().

branches: 1.18.4;
Begin the task of splitting up the ofppc port into common code
and platform-specific code, similar to how the Alpha port is
split up.

Make all powerpc ports use a common Makefile.powerpc (except walnut)
Enforce -Wmissing-prototypes -Wstrict-prototypes for all ppc ports.
Split out macppc cpu support and make common to mpc6xx ports. Make
other mpc6xx ports use it. Add evcnts for mpc6xx traps.

branches: 1.16.2;
use _KERNEL_OPT

Remove the use of splimp() from the NetBSD kernel. splnet()
and only splnet() is allowed for the protection of data structures
used by network devices.

splimp -> splvm

branches: 1.13.2;
Make sure everybody has an splvm() and equate it with splimp() (splimp()
is the historical name for this interrupt level, and the historical name
is going to go away in the near future).

Partial syscall cleanup, as per other ports.

Need to provide CACHELINESIZE in _STANDALONE environments, too.

Make need_resched() take a "struct cpu_info *" argument. This
causes gives a primitive form of processor affinity. Its use in
roundrobin() still needs some work.

Add spllock(). See spl(9) for details.

Make sure we provide splsched() as described in spl(9).

First sweep at scheduler state cleanup. Collect MI scheduler
state into global and per-CPU scheduler state:

- Global state: sched_qs (run queues), sched_whichqs (bitmap
of non-empty run queues), sched_slpque (sleep queues).
NOTE: These may collectively move into a struct schedstate
at some point in the future.

- Per-CPU state, struct schedstate_percpu: spc_runtime
(time process on this CPU started running), spc_flags
(replaces struct proc's p_schedflags), and
spc_curpriority (usrpri of processes on this CPU).

- Every platform must now supply a struct cpu_info and
a curcpu() macro. Simplify existing cpu_info declarations
where appropriate.

- All references to per-CPU scheduler state now made through
curcpu(). NOTE: this will likely be adjusted in the future
after further changes to struct proc are made.

Tested on i386 and Alpha. Changes are mostly mechanical, but apologies
in advance if it doesn't compile on a particular platform.

branches: 1.6.2;
Define cpu_number() as discussed on tech-smp.

Change the semantics of splsoftclock() to be like other spl*() functions,
that is priority is rasied. Add a new spllowersoftclock() to provide the
atomic drop-to-softclock semantics that the old splsoftclock() provided,
and update calls accordingly.

This fixes a problem with using the "rnd" pseudo-device from within
interrupt context to extract random data (e.g. from within the softnet
interrupt) where doing so would incorrectly unblock interrupts (causing
all sorts of lossage).

XXX 4 platforms do not have priority-raising capability: newsmips, sparc,
XXX sparc64, and VAX. This platforms still have this bug until their
XXX spl*() functions are fixed.

Modify syncicache on PowerPC from an inline to a real function.
Support different cache line sizes with the same object code in userland.
While here, move the function to implementation name space.

branches: 1.3.10;
asm -> __asm__, volatile -> __volatile

branches: 1.2.8;
Definitions for machine_vec interface, from Wolfgang Solfrank.

PowerPC port

Replace machine/rnd.h with more appropriate name to share it
with cycle counter based microtime in kern/kern_microtime.c.

Remove Darwin, MACH and Mach-O support.

branches: 1.1.2; 1.1.136; 1.1.142;
A working fork/vfork implementation. Darwin fork differs from our fork by
two ways:
- the child gets its pid as retval[0] (userland stub will turn it into a 0),
retval[1] is 1 and it is 0 in the parent.
- in the child, the fork syscall is successful, hence we must skip the next
instruction.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Fixed writing of MBR disklabel. It was written by disklabel(8) -r directly
into sector 0, corrupting the MBR. Moved to sector 1.
Removed MBR_LABELSECTOR, which is no longer needed.

branches: 1.10.2; 1.10.6;
Add getlabelusesmbr(), as proposed in
http://mail-index.netbsd.org/tech-userlevel/2011/08/25/msg005404.html
This is used by disk tools such as disklabel(8) to dynamically decide is
the undelyling platform uses a disklabel-in-mbr-partition or not
(instead of using a compile-time list of ports).
getlabelusesmbr() reads the sysctl kern.labelusesmbr, takes its value from the
machdep #define LABELUSESMBR.
For evbmips, make LABELUSESMBR 1 if the platform uses pmon
as bootloader, and 0 (the previous value) otherwise.

Support for reading disklabels from RDB partitions in the kernel.
The code will check for a raw disklabel first, then tries to find the
disklabel in an MBR partition and finally constructs it from RDB
partitions.
RDB is probably only needed for the Pegasos platform, so it can be
disabled in the config file (RDB_PART).

branches: 1.8.4;
If cpu_disklabel includes struct dkbad, define __HAVE_DISKLABEL_DKBAD.
This allows use of subr_disk_mbr on all archs. Default to it for
the rump disk component. No functional change for regular kernels.
(The other option would've been to include dkbad in disklabels
everywhere, but arguably this approach has less possible side-effects,
especially given that wedges and related magic will take over the
world any second now).

branches: 1.7.20;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.6.18; 1.6.60; 1.6.68; 1.6.78; 1.6.80; 1.6.82; 1.6.84;
Remove redundant bounds_check_with_label() prototype.

Use <sys/disklabel_mbr.h>

Use fixed-size types.

Change MBR partition type for NetBSD to 0xa9, like the i386 port.
Provide compatibility via COMPAT_386BSD_MBRPART.

Don't define two partition types for NetBSD - just use the standard 0xa5.
(Eww, DOS MBR)

PowerPC port

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

In the `MY THAT'S GROSS' department...
Eliminate the recursive include of machine/endian.h from sys/endian.h.

branches: 1.1.14;
Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

branches: 1.1.6;
In the `MY THAT'S GROSS' department...
Eliminate the recursive include of machine/endian.h from sys/endian.h.

branches: 1.1.2; 1.1.18;
new powerpc fenv.h

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Final bit of PR 41200: headers that declare ioctls should include sys/ioccom.h.
This covers most if not all of the MD headers.

XXX: a lot of the ioctl definitions in some of these files are cutpasted.

branches: 1.3.14; 1.3.32;
Remove clause 3 (UCB advertising clause) from the University of Utah
copyright. Confirmed by Mike Hibler, mike at cs.utah.edu - thanks!
Also, merge UCB and Utah copyright texts back into one, as they
originally were.

Extra verification by snj@.

branches: 1.2.2; 1.2.4; 1.2.8; 1.2.48; 1.2.54; 1.2.56;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.1.2; 1.1.6; 1.1.8; 1.1.10;
file grfioctl.h was initially added on branch ppcoea-renovation.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

branches: 1.1.2; 1.1.4; 1.1.12;
Add definitions of C99 integer constant macros.

branches: 1.1.2; 1.1.4; 1.1.12;
Add definitions of C99 integer format conversion macros.
XXX Fastest minimum-width integer types haven't been decided upon yet.

branches: 1.1.2; 1.1.4; 1.1.12;
Add definitions of C99 specified-width integer type limits.
XXX Fastest minimum-width integer types haven't been decided upon yet.

branches: 1.1.2; 1.1.4; 1.1.12;
Add definitions of C99 minimum-width and greatest-width integer types.
XXX Fastest minimum-width integer types haven't been decided upon yet.

branches: 1.1.2;
Add <machine/int_types.h>, which provides namespace-pure definitions
of exact-width integer types.

intr.h must not include cpu due to deadly embrace with SOFTINT_COUNT.
Cleanup intr.h so MD definitions can overload common definitions.
Rototill pic/intr.c. Virtual IRQs can now be reclaimed. separate virq
from hwirq from picirq. Redo intr mask calculations.
tested on pmppc and macppc (MP).

Remove <machine/atomic.h>; use <sys/atomic.h> instead.
Add <powerpc/cpuset.h> (for mpc85xx pmap).
Add some initial MP code for mpc85xx
Rework ipi code to be common across all ppcs
Change PPC to keep curlwp in %r13 while in the kernel.
Move astpending from cpu_info to mdlwp
Improve cpu_need_resched to be more MP friendly.

branches: 1.14.2; 1.14.6;
sys/device.h is not suitable for such low-level definitions.

Support 64-bit imask for powerpc/pic.

branches: 1.12.20; 1.12.22;
Remove clause 3 and 4 from TNF licenses

branches: 1.11.16; 1.11.18; 1.11.20;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.10.8; 1.10.10; 1.10.12; 1.10.14;
Generic soft interrupts are mandatory.

branches: 1.9.2; 1.9.10;
Implement support for softintrs.
Reviewed, corrected and tested by aymeric@.

branches: 1.8.2;
Remove spllowersoftclock() and CLKF_BASEPRI(), and always dispatch callouts
via a soft interrupt. In the near future, softclock will be run from process
context.

merge yamt-splraiseipl branch.

- finish implementing splraiseipl (and makeiplcookie).
http://mail-index.NetBSD.org/tech-kern/2006/07/01/0000.html
- complete workqueue(9) and fix its ipl problem, which is reported
to cause audio skipping.
- fix netbt (at least compilation problems) for some ports.
- fix PR/33218.

branches: 1.6.20; 1.6.22;
In decr_intr(), update lasttb only when clock interrupt is not masked.
(sync with macppc/macppc/clock.c: rev.1.11 -> 1.12)

branches: 1.5.16; 1.5.24;
Move CLKF_BASEPRI to machine specific <intr.h> file since it depends on
the encoding of the spl for the port.

branches: 1.4.2;
Rename IPL_IMP -> IPL_VM.

fix the ofppc interrupt code to work at all. the previous code was
confusing an IPL number with an IRQ mask. now we do like the x86 code.

branches: 1.2.2; 1.2.6;
Add/rework infrastructure that will allow us to support native
device drivers:
- Various native device entries in cdevsw/bdevsw.
- Rework the interrupt infrastructure to provide more flexibility to
the platform-dependent back-end. Rewrite the "ofwgen" simulated
interrupt routines to reflect the changes.
- Clear out the BAT registers and set the fixed battable entries before
calling the platform init routine. The platform init routine is allowed
to set entries in the battable.
- Don't call the platform cons_init routine until after translation is
enabled -- we might need translation to work in order to access bus
space.

branches: 1.1.4; 1.1.6;
Make all powerpc ports use a common Makefile.powerpc (except walnut)
Enforce -Wmissing-prototypes -Wstrict-prototypes for all ppc ports.
Split out macppc cpu support and make common to mpc6xx ports. Make
other mpc6xx ports use it. Add evcnts for mpc6xx traps.

Retire ipkdb entirely. The option was removed from the config files
yesterday.

ok kamil christos

branches: 1.1.60; 1.1.238;
Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.1.64; 1.1.106; 1.1.114; 1.1.124; 1.1.126; 1.1.128; 1.1.130;
PowerPC port

s/Miscellanous/Miscellaneous/ in copypasta comments.

add isa_intr_establish_xname() to MD isa headers so that it can be used
by MI drivers

branches: 1.7.22; 1.7.40; 1.7.44;
isa_detach_hook() needs two arguments, the first an isa_chipset_tag_t.

Define isa_detach_hook().

Remove clause 3 and 4 from TNF licenses

branches: 1.4.6; 1.4.8; 1.4.10;
Add support to ofppc for the IBM 7044-270 machine. This is a POWER3-II
based machine. Currently the kernel to run on this machine is
incompatible with the standard GENERIC kernel, so for now, we have a
separate GENERIC_B64. Eventually, I hope to combine the two.

Please note, this is a port of 32bit ofppc, not a powerpc64 port.

Thanks to Matt Thomas and Kevin Bowling for helping to make this port
possible.

Summary of changes:

Change ofwpci to use the ofmethod config for configuring the PCI bus,
rather than indirect configuration.
Move the wiring of the interrupt controllers from at the start of the
boot, into the configuration of the first PCI bus.
Rewrite the map_isa_ioregs() hack to work on a machine without BATs
Fix a ton of bugs in the genofw_find_pics routine, and in the map_space code.
Split the pic_openpic into openpic_common and pic_openpic.
Create a new pic_distopenpic driver, for the distributed openpic found on
some newer IBM machines.
Fix a bad panic in pmap_extract on 64bit bridge mode

branches: 1.3.2; 1.3.4; 1.3.10;
Lots of small changes for ofppc:

Remove the ofb driver. I'm not interested in trying to make this work.
It should be replaced with the genfb driver, which I have added,
commented out because that driver needs work before it will function on
ofppc. (it's too panic-happy, and ofppc needs a working autoconf.c)

Change the way we do isa_inb/outb. The new way is a slightly nastier
hack, but won't run afoul of the other isa drivers as much.

Fix ofw_consinit.c to remove the dependency on ofb.

branches: 1.2.2; 1.2.4;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.1.2; 1.1.6; 1.1.8; 1.1.10;
file isa_machdep.h was initially added on branch ppcoea-renovation.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Consistently define WARN in a way that passes format string checks, i.e.
always uses the same number of arguments as given in the format string.

branches: 1.5.44; 1.5.60;
Remove clause 3 and 4 from TNF licenses

branches: 1.4.6; 1.4.8; 1.4.10;
Changes to the ofppc ofwboot to make it boot on an IBM CHRP RS/6000.
Tested on a pegasos II and a 7044-270. Also, switch away from the hacked
up alloc.c we were using, and use the stock libsa one.

branches: 1.3.48; 1.3.54; 1.3.62;
free -> dealloc
unsigned -> size_t for alloc/dealloc

branches: 1.2.2; 1.2.4; 1.2.36; 1.2.48;
Split elf32 vs. elf64 handling in loadfile(), including support for
each separately and explicitly. BOOT_ELF is now BOOT_ELF32 and
BOOT_ELF64, and ELFSIZE should no longer be defined in loadfile_machdep.h.

branches: 1.1.2;
Add machine-dependent defns for libsa's loadfile().

branches: 1.1.6;
Require that each each MACHINE/MACHINE_ARCH supply a lock.h. This file
contains the values __SIMPLELOCK_LOCKED and __SIMPLELOCK_UNLOCKED, which
replace the old SIMPLELOCK_LOCKED and SIMPLELOCK_UNLOCKED. These files
are also required to supply inline functions __cpu_simple_lock(),
__cpu_simple_lock_try(), and __cpu_simple_unlock() if locking is to be
supported on that platform (i.e. if MULTIPROCESSOR is defined in the
_KERNEL case). Change these functions to take an int * (&alp->lock_data)
rather than the struct simplelock * itself.

These changes make it possible for userland to use the locking primitives
by including <machine/lock.h>.

branches: 1.1.4;
Create a new header lwp_private.h to contain _lwp_getprivate_fast,
_lwp_gettcb_fast, _lwp_settcb and remove them from mcontext.h, so that:
1. we don't need special hacks to hide them
2. we can include <lwp.h> where needed to get the necessary prototypes
without redefining them locally.

No longer used.

branches: 1.1.150; 1.1.152; 1.1.154; 1.1.156;
Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Remove Darwin, MACH and Mach-O support.

branches: 1.1.2; 1.1.136; 1.1.142;
Add missing file.

branches: 1.1.6;
C99: Define a NAN macro in <math.h> which evaulates to a constant expression of
a single-precision quiet NaN; only to be defined on platforms that do support
this value.

Merge the nathanw_sa branch.

branches: 1.1.2;
file mcontext.h was initially added on branch nathanw_sa.

branches: 1.2.4;
Merge newlock2 to head.

branches: 1.1.2;
file mutex.h was initially added on branch newlock2.

branches: 1.1.4; 1.1.6; 1.1.10;
Needed for COMPAT_NETBSD32

branches: 1.2.2; 1.2.4; 1.2.8;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.1.2; 1.1.6; 1.1.8; 1.1.10;
file openpicreg.h was initially added on branch ppcoea-renovation.

userland needs to see PCI_MAGIC_IO_RANGE

Cleanup powerpc param.h. If compiling a MODULE, ignore port-specific stuff.
Only include <machine/cpu.h> in <powerpc/param.h> at the end.

branches: 1.11.36;
Define PCI_MAGIC_IO_RANGE for X11 server. The address chosen may change.
Approved by garbled.

branches: 1.10.4; 1.10.36; 1.10.98; 1.10.118; 1.10.122;
just set MACHINE and include powerpc/param.h - non-NEWPMAP ofppc kernels boot now.

branches: 1.9.2;
use _KERNEL_OPT

branches: 1.8.2;
raise MSIZE from 128 to 256.
- for sizeof(void *) == 8 arch, this is mandatory. MHLEN is too small
already (less than 80) and there are chances for unwanted packet loss due
to m_pullup restriction.
- for other cases, the change should avoid allocating clusters in most cases
(even when you have IPv4 IPsec tunnel, or IPv6 with moderate amount of
extension header)

portmasters: if your arch chokes with the change (high memory usage or
whatever), please backout the change for your arch.

branches: 1.7.4;
Update for the NKMEMPAGES changes.

CL* discarding.

branches: 1.5.12; 1.5.18;
Eliminate ovbcopy define.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Pull in opt_gateway.h as appropriate.

Define ALIGNED_POINTER

branches: 1.1.6;
PowerPC port

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

VT8231 IDE workaround for native mode with "compatibility" interrupts 14/15.
This time done right by calling pciide_machdep_compat_intr_establish() to
get a MD interrupt handler.
Verified that it compiles for XEN again.

branches: 1.5.4; 1.5.8;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.4.30; 1.4.38; 1.4.48; 1.4.50; 1.4.52; 1.4.54;
merge ktrace-lwp.

branches: 1.3.12;
remove now unnecessary "pci_enumerate_bus" definitions

branches: 1.2.10;
Let machine-dependent code specify how to enumerate the bus.
Currently, everyone uses pci_enumerate_bus_generic().

branches: 1.1.2; 1.1.4; 1.1.6;
Check in of work-in-progress of Firepower native device support.
We can find devices in PCI configuration space, but not much else.

Set the GPIO to enable AGP configuration space access when attaching gtpci0
and do not reset it again. This keeps AGP devices visible after configure().
Improved the match-function to look for a Discovery controller on the PCI
bus.

Support MV64361 on PegasosII by gt(4).
+ Support gtpci@gt instead of pegasospci more smartly.
+ Support Gigabit Ethernet by mvgbe@gt.

branches: 1.1.2; 1.1.6; 1.1.8; 1.1.10; 1.1.12; 1.1.30; 1.1.50; 1.1.52;
Apply patch from Frank Wille to make the pegasos2 pci scan work
properly. Modified slightly by me to add the pegasosreg.h file.

With this change, the pegasos correctly scans both primary and secondary
PCI busses.

branches: 1.2.2; 1.2.4; 1.2.8;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.1.2; 1.1.6; 1.1.8; 1.1.10;
file pio.h was initially added on branch ppcoea-renovation.

Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.2.22; 1.2.64; 1.2.72; 1.2.82; 1.2.84; 1.2.86; 1.2.88;
fix the ofppc interrupt code to work at all. the previous code was
confusing an IPL number with an IRQ mask. now we do like the x86 code.

branches: 1.1.4; 1.1.6;
Begin the task of splitting up the ofppc port into common code
and platform-specific code, similar to how the Alpha port is
split up.

Rename PPC_MPC6XX to PPC_OEA (and any mpc6xx reference to oea).

More cleanup for OLDPMAP.

switch all mpc6xx powerpc ports to NEWPMAP by default.
the old pmap is still available with the OLDPMAP option.

branches: 1.9.2;
NEWPMAP fixes that I missed committing.

branches: 1.8.16; 1.8.18;
Toss contents, and just pull in <powerpc/pmap.h>.

branches: 1.7.8;
vm_offset_t -> {paddr_t,vaddr_t}, vm_size_t -> vsize_t

Import DDB from OpenBSD/powerpc.

Don't need __VM_PMAP_HACK anymore.

Now that all ports have pmap_activate(), and it has an identical interface,
prototype it in <vm/pmap.h>

Implement pmap_activate().

Add #define __VM_PMAP_HACK as a temporary measure.

PowerPC port

Remove the kernel PMC code. Sent yesterday on tech-kern@.

This change:

* Removes "options PERFCTRS", the associated includes, and the associated
ifdefs. In doing so, it removes several XXXSMPs in the MI code, which is
good.

* Removes the PMC code of ARM XSCALE.

* Removes all the pmc.h files. They were all empty, except for ARM XSCALE.

* Reorders the x86 PMC code not to rely on the legacy pmc.h file. The
definitions are put in sysarch.h.

* Removes the kern/sys_pmc.c file, and along with it, the sys_pmc_control
and sys_pmc_get_info syscalls. They are marked as OBSOL in kern,
netbsd32 and rump.

* Removes the pmc_evid_t and pmc_ctr_t types.

* Removes all the associated man pages. The sets are marked as obsolete.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.202; 1.1.204;
Implement pmc(9) -- An interface to hardware performance monitoring
counters. These counters do not exist on all CPUs, but where they
do exist, can be used for counting events such as dcache misses that
would otherwise be difficult or impossible to instrument by code
inspection or hardware simulation.

pmc(9) is meant to be a general interface. Initially, the Intel XScale
counters are the only ones supported.

Remove all the __P() from sys (excluding sys/dist)
Diff checked with grep and MK1 eyeball.
i386 and amd64 GENERIC and sys still build.

branches: 1.7.78; 1.7.86; 1.7.92;
merge ktrace-lwp.

Centralize the declaration of booted_device and booted_partition.

branches: 1.5.6;
remove protos for non-existant functions.

branches: 1.4.6; 1.4.10;
Make booted_device global (and booted_parition for consitency).
Eliminate it from header files and other extern definitions.

branches: 1.3.12; 1.3.20;
vm_offset_t -> {paddr_t,vaddr_t}, vm_size_t -> vsize_t

Declare booted_device and booted_partition as "extern".

branches: 1.1.2;
PowerPC port

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Use <powerpc/psl.h>

branches: 1.2.14;
Garbage collect stuff now hidden my machine_vec.

PowerPC port

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

branches: 1.3.6;
Make all powerpc ports use a common Makefile.powerpc (except walnut)
Enforce -Wmissing-prototypes -Wstrict-prototypes for all ppc ports.
Split out macppc cpu support and make common to mpc6xx ports. Make
other mpc6xx ports use it. Add evcnts for mpc6xx traps.

branches: 1.2.28;
RCSID Police.

Add some files that CVS missed somehow
These are empty for now, but are needed by MI code

Pull in <powerpc/reg.h>.

branches: 1.2.10;
RCSID Police.

Add some files that CVS missed somehow
These are empty for now, but are needed by MI code

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Replace machine/rnd.h with more appropriate name to share it
with cycle counter based microtime in kern/kern_microtime.c.

branches: 1.1.4; 1.1.6;
Add cpu_counter().

branches: 1.2.4;
Merge newlock2 to head.

branches: 1.1.2;
file rwlock.h was initially added on branch newlock2.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

branches: 1.1.2; 1.1.6;
Rename sljitarch.h to sljit_machdep.h.

Rename sljitarch.h to sljit_machdep.h.

branches: 1.1.2; 1.1.4; 1.1.6;
Enable sljit and bpfjit on powerpc.

Add missing <powerpc/FOO/spr.h> to a few files missed on the first pass.
Don't export <machine/spr.h> to userland, only <powerpc/spr.h>

branches: 1.4.78; 1.4.92; 1.4.98;
merge ktrace-lwp.

branches: 1.3.2;
Install spr.h

branches: 1.2.2; 1.2.4;
Pull in SPRs via <powerpc/spr.h> in this single instance, and dispose of
<machine/spr.h> again.

Fix PowerPC ports build with KGDB.

Retire varargs.h support. Move machine/stdarg.h logic into MI
sys/stdarg.h and expect compiler to provide proper builtins, defaulting
to the GCC interface. lint still has a special fallback.
Reduce abuse of _BSD_VA_LIST_ by defining __va_list by default and
derive va_list as required by standards.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Document via __HAVE_BUS_SPACE_8 platforms that implement bus_space_*_8

branches: 1.12.26;
provide __HAVE_COMPAT_NETBSD32 and fix multiple include protection consistently.

branches: 1.11.12; 1.11.30; 1.11.34; 1.11.38;
Enable new-style <sys/bus.h> on several PowerPC ports supporting PCI
buses. Make non-inline implementations of bus_space(9) and bus_dma(9)
routines and move them to appropriate .c files.

This may leave amigappc in a bad state, sorry. Fortunately, it will be
easy to repair by imitating the bus.h -> bus_{defs,funcs}.h split in
some other PowerPC port.

Now that __HAVE_TIMECOUNTER and __HAVE_GENERIC_TODR are invariants,
remove the conditionals and the code associated with the undef case.

branches: 1.9.2; 1.9.8;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.8.8; 1.8.10; 1.8.12; 1.8.14;
Generic soft interrupts are mandatory.

branches: 1.7.2; 1.7.10;
Implement support for softintrs.
Reviewed, corrected and tested by aymeric@.

branches: 1.6.6;
Convert shark and ofppc to new common ofrtc and MI todr code. Tested
on shark. Ok christos@, martin@.

branches: 1.5.22; 1.5.40; 1.5.52;
Use "#define\t" instead of "#define ".

implement device_register() for ofppc.
use ofcons_cnprobe().

branches: 1.3.8; 1.3.12;
Nuke dk_establish() from orbit except from those ports which still use
it to determine the boot device: mvme68k, pc532, macppc, ofppc. Those
platforms should be changed to use device_register(). In the mean time,
those ports defined __BROKEN_DK_ESTABLISH.

branches: 1.2.12;
Oops, ofppc don't have wscons.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Not used.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Retire varargs.h support. Move machine/stdarg.h logic into MI
sys/stdarg.h and expect compiler to provide proper builtins, defaulting
to the GCC interface. lint still has a special fallback.
Reduce abuse of _BSD_VA_LIST_ by defining __va_list by default and
derive va_list as required by standards.

Rename NetBSD/powerpc to NetBSD/ofppc.
New sys/arch/powerpc with PowerPC-generic stuff.

Don't export USER_SR if _MODULE is defined.
Add a common <powerpc/vmparam.h> like we have for <powerpc/pmap.h>

branches: 1.22.50;
Commit a fix for the _SR regions that are needed by ofppc. Because this
platform tends to just declare anything from 0x8 to 0xf as mem or io
regions willy-nilly, we need to avoid batmapping a few of those in order
to save space for USER_SR, KERNEL_SR and KERNEL2_SR. I picked values for
these three that are least-commonly used or used for non-vital things.

branches: 1.21.18; 1.21.60; 1.21.78; 1.21.80; 1.21.84; 1.21.86;
Rename PPC_MPC6XX to PPC_OEA (and any mpc6xx reference to oea).

Remove OLDPMAP support.

Use __LDPGSZ (which must be == USRTEXT) as the text address for a.out
executables, and eliminate the USRTEXT constant, which was only used
by the a.out exec code.

Use SR 11 as USER_SR. (12 is used as an I/O BAT).

branches: 1.17.6;
switch all mpc6xx powerpc ports to NEWPMAP by default.
the old pmap is still available with the OLDPMAP option.

MAXSLP is defined to be a machine-independent scheduling parameter,
so move it into sys/param.h.

branches: 1.15.2;
NEWPMAP fixes that I missed committing.

branches: 1.14.4;
Define VM_MAX_KERNEL_BUF and PAGER_MAP_SIZE to save KVA space.

branches: 1.13.2;
Per discussion w/ chuck and chuck, restructure the md page stuff
to use a structure called "vm_page_md", and use __HAVE_VM_PAGE_MD
and __HAVE_PMAP_PHYSSEG.

Add a VM_MDPAGE_MEMBERS macro that defines pmap-specific data for
each vm_page structure. Add a VM_MDPAGE_INIT() macro to init this
data when pages are initialized by UVM. These macros are mandatory,
but ports may #define them to nothing if they are not needed/used.

This deprecates struct pmap_physseg. As a transitional measure,
allow a port to #define PMAP_PHYSSEG so that it can continue to
use it until its pmap is converted to use VM_MDPAGE_MEMBERS.

Use all this stuff to eliminate a lot of extra work in the Alpha
pmap module (it's smaller and faster now). Changes to other pmap
modules will follow.

branches: 1.11.6;
Update for the NKMEMPAGES changes.

CL* discarding.

branches: 1.9.2; 1.9.8;
Now that we have direct-mapped pool pages, we can garbage-collect VM_MBUF_SIZE
and don't need to allocate mb_map.

branches: 1.8.4;
VM_MBUF_SIZE is in terms of MCLBYTES, not CLBYTES.

MNN is no longer optional

vm_offset_t -> {paddr_t,vaddr_t}, vm_size_t -> vsize_t

Merge in MACHINE_NEW_NONCONTIG support and some fix from Tsubai-San.
UVM support.

Fix typo.

bring mrg-vm-swap2 onto mainilne.

branches: 1.2.2;
Always define MACHINE_NONCONTIG.

branches: 1.1.4;
PowerPC port

merge ktrace-lwp.

branches: 1.1.2;
Factor out W{CHAR,INT}_{MAX,MIN} into their own header file.