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 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.

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

Approved by: re (implicit)

Support of Ralink Ethernet MAC, used in RT3050F/RT3052F and I belive in other Ralink SoCs.

Approved by: adrian (mentor)

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

Import nvram2env, a device driver which imports various NVRAM-style
environments into the kernel environment.

The eventual aim is to replace these with specific drivers for
the various bootloaders (redboot, uboot, etc.) This however will
work for the time being until it can be properly addressed.

Submitted by: Aleksandr Rybalko <ray@dlink.ua>

UMA_MD_SMALL_ALLOC for mips.

Implement uma_small_alloc() and uma_small_free() for mips that allocates
pages from direct mapped memory. Uses the same mechanism as the page table
page allocator, so that we allocate from KSEG0 in 32 bit, and from XKPHYS
on 64 bit.

Reviewed by: alc, jmallett

- Add minidump support for FreeBSD/mips

The functions in sys/mips/mips/psraccess.S can be implemented with
mips_rd_status/mips_wr_status. Implement them in mips/include/cpufunc.h,
and remove psraccess.S.

Reviewed by: neel, imp

Update MIPS timer code (except RMI) to utilize new MI event timer
infrastructure.

Reviewed by: neel

Merge jmallett@'s n64 work into HEAD - changeset 4

Re-write tlb operations in C with a simpler API.
Update callers to use the new API.

Changes from http://svn.freebsd.org/base/user/jmallett/octeon

Approved by: rrs(mentor), jmallett

Remove unused file.

Add support for hwpmc(4) on the MIPS 24K, 32 bit, embedded processor.

Add macros for properly accessing coprocessor 0 registers that
support performance counters.

Reviewed by: jkoshy rpaulo fabien imp
MFC after: 1 month

Unbreak SENTRY5 build.

Kernel module support for mips.

Reviewed by: gonzo

Tested by: Alexandr Rybalko (ray@dlink.ua)

SMP support for the mips port.

The platform that supports SMP currently is a SWARM with a dual-core Sibyte
processor. The kernel config file to use is SWARM_SMP.

Reviewed by: imp, rrs

merge from my tbemd branch: cmpdi2 and ucmpdi2 are genereated when the
inline limit is pushed to a very low level. Include them here until
we can find a better way to optionally include them. They are small...

Merge from projects/mips to head by hand:

r200593 | imp | 2009-12-15 16:22:19 -0700 (Tue, 15 Dec 2009) | 4 lines
Remove the now-obsolete comments about compile-with. There are no
compile-with lines in this file at all. So we don't need two warnings
about them.

r198669 | rrs | 2009-10-30 02:53:11 -0600 (Fri, 30 Oct 2009) | 5 lines
With this commit our friend RMI will now compile. I have
not tested it and the chances of it running yet are about
ZERO.. but it will now compile. The hard part now begins,
making it run ;-)

r198311 | neel | 2009-10-20 18:56:13 -0600 (Tue, 20 Oct 2009) | 8 lines
Update options.mips to support config options required to build the SWARM
kernel.
The SWARM kernel does not build yet but at least it gets past the kernel
config stage.

r198154 | rrs | 2009-10-15 15:03:32 -0600 (Thu, 15 Oct 2009) | 10 lines
Does 4 things:
1) Adds future RMI directories
2) Places intr_machdep.c in specfic files.arch pointing to the generic
intr_machdep.c. This allows us to have an architecture dependant
intr_machdep.c (which we will need for RMI) in the machine specific
directory
3) removes intr_machdep.c from files.mips
4) Adds some TARGET_XLR_XLS ifdef's for the machine specific intra_machdep.h. We
may need to look at finding a better place to put this. But first I want to
get this thing compiling.

r196315 | imp | 2009-08-17 06:37:06 -0600 (Mon, 17 Aug 2009) | 5 lines
Like qdivrem, remove the other quad_t support stuff from 64-bit
kernels.

r195331 | imp | 2009-07-03 20:49:17 -0600 (Fri, 03 Jul 2009) | 4 lines
Merge in new cfe environment passing of kenv for swarm/sibyte boards.
Submitted by: Neelkanth Natu

r195732 | gonzo | 2009-07-16 20:28:27 -0600 (Thu, 16 Jul 2009) | 2 lines
- Add DES and Blowfish implementstions to build. Required by crypto(4)

r195437 | imp | 2009-07-07 23:57:58 -0600 (Tue, 07 Jul 2009) | 2 lines
The kernel isn't quite ready for this to be optional...

r195401 | imp | 2009-07-06 02:16:25 -0600 (Mon, 06 Jul 2009) | 4 lines
Only build qdivrem on 32-bit ISA...

r195331 | imp | 2009-07-03 20:49:17 -0600 (Fri, 03 Jul 2009) | 4 lines
Merge in new cfe environment passing of kenv for swarm/sibyte boards.
Submitted by: Neelkanth Natu

r195165 | gonzo | 2009-06-29 11:36:47 -0600 (Mon, 29 Jun 2009) | 2 lines
- add sys_machdep.c to build

r192864 | gonzo | 2009-05-26 16:40:12 -0600 (Tue, 26 May 2009) | 4 lines
- Replace CPU_NOFPU and SOFTFLOAT options with CPU_FPU. By default
we assume that there is no FPU, because majority of SoC does
not have it.

r191085 | gonzo | 2009-04-14 20:41:35 -0600 (Tue, 14 Apr 2009) | 2 lines
- mainbus.c seems not to be used, disconnect it from build

r191084 | gonzo | 2009-04-14 20:28:26 -0600 (Tue, 14 Apr 2009) | 6 lines
Use FreeBSD/arm approach for handling bus space access: space tag is a pointer
to bus_space structure that defines access methods and hence every bus can
define own accessors. Default space is mips_bus_space_generic. It's a simple
interface to physical memory, values are read with regard to host system
byte order.

r187418 | gonzo | 2009-01-18 19:37:10 -0700 (Sun, 18 Jan 2009) | 4 lines
- Add trampoline stuff for bootloaders that do not support ELF
- Replace arm'ish KERNPHYSADDR/KERNVIRTADDR with
KERNLOADADDR/TRAMPLOADADDR and clean configs

r187415 | gonzo | 2009-01-18 16:49:02 -0700 (Sun, 18 Jan 2009) | 3 lines
- Move Silicon Backplanes code out to system-wide level (dev/siba) as
it's going to be used not only for siba5 devices.

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

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 mips/conf/DEFAULTS and populate it with:
machine arm
device mem
device uart_ns8250
options GEOM_BSD
options GEOM_MBR

Remove the first three from all kernel configuration files
(sometimes commented-out) and change geom_bsd and geom_mbr
from standard to optional.

Add atheros HAL building so the IDT kernel can build.

mips_subr.c was in the Juniper code drop, but didn't have any
functions used by other code in the tree. As such it was removed from
the merged tree until the functions were needed in the future. The
file was missing from the FreeBSD import, but it was listed in the
files.mips file as being standard. Remove it from there until such
time as we need one.

Minor tweaks to remove references to files that aren't present in the
current FreeBSD/mips source base. Make phases consistent. Remove
comment that's no longer relevant.

Merge in the mips specific configuration files and such from the
merged juniper and mips2 code base. This represents the work of
Juniper Engineers, plus Oleksandr Tymoshenko, Wojciech Koszek, Warner
Losh, Olivier Houchard, Randall Stewert and others that have
contributed to the mips2 and/or mips2-jnpr perforce branches.