When init is started it is SIGNAL_UNKILLABLE.  If it were to get an
address error, we would try to send it SIGBUS, but it would be ignored
and the faulting instruction restarted.  This results in an endless
loop.

We need to use force_sig() instead so it will actually die and give us
some useful information.
Reported-by: NFlorian Fainelli <florian@openwrt.org>
Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

This patch modifies parameter of octeon_cvmcount_read() from 'void' to
'struct clocksource *cs', which fixes compile warning for incompatible
parameter type.
Signed-off-by: NColy Li <coly.li@suse.de>
Cc: David Daney <ddaney@caviumnetworks.com>
Cc: Ingo Molnar <mingo@elte.hu>
Reviewed-by: NDavid Daney <ddaney@caviumnetworks.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The inline assembler used on 32-bit kernels was using the "h" constraint
which was considered dangerous and removed for gcc 4.4.0.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Commit 35133692 (kernel.org) rsp.
b3594a089f1c17ff919f8f78505c3f20e1f6f8ce (linux-mips.org):

> From: Chris Dearman <chris@mips.com>
> Date: Wed, 19 Sep 2007 00:58:24 +0100
> Subject: [PATCH] [MIPS] Allow setting of the cache attribute at run time.
>
> Slightly tacky, but there is a precedent in the sparc archirecture code.

introduces the variable _page_cachable_default, which defaults to zero and.
is used to create the prototype PTE for __kmap_atomic in
arch/mips/mm/init.c:kmap_init before initialization in
arch/mips/mm/c-r4k.c:coherency_setup, so the default value of 0 will be
used as the CCA of kmap atomic pages which on many processors is not a
defined CCA value and may result in writes to kmap_atomic pages getting
corrupted.  Debugged by Jon Fraser (jfraser@broadcom.com).
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Probably nobody does arithmetic on cp0 register values so this has never
bitten.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The RAMROOT function was a successful but non-portable attempt to append
the root filesystem to the end of the kernel image.  The preferred and
portable solution is to use an initramfs instead.
Signed-off-by: NShane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

I don't think that in 15 years of Linux/MIPS the zero division checking
code generated by gcc by default has ever caught anything.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Otherwise indigestable options might be passed to the host compiler.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

There have been a number of compile problems with the msp71xx configuration
ever since it was included in the linux-mips.org repository.  This patch
resolves compilation problems with attempting to reset the board using
non-existent GPIO routines.

This patch has been compile-tested against the current HEAD.
Signed-off-by: NShane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

There have been a number of compile problems with the msp71xx configuration
ever since it was included in the linux-mips.org repository.  This patch
resolves the "multiple definition of plat_timer_setup" problem, and creates
the required get_c0_compare_int function.

This patch has been compile-tested against the current HEAD.
Signed-off-by: NShane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

There was already a define for NMI_OFFSET in asm/sn/addr.h, which now
clashes with linux/hardirq.h. Rename the one in sn/addr.h to fix IP27
builds..
Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Fix breakage introduced by 8e19608e.
Signed-off-by: NManuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Beyond the requirements of the architecture standard Cavium also supports
8k and 32k pages.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
Acked-by: NDavid Daney <ddaney@caviumnetworks.com>

Addition of -fwrapv option in 2.6.29 discloses possible overflow with
signed arithmetics.  For example, result of "a * 6 / 12" (int a =
400000000) is 200000000 without -fwrapv but -157913941 with -fwrapv.

Change some variable to unsigned to avoid such overflows.
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Synchronize dma_map_page/dma_unmap_page and dma_map_single/dma_unmap_single.
This will reduce unnecessary writebacks and invalidates.

[Ralf: make dma_unmap_page an inline function.]
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

This is useful for IDT RC32332, RC32334 and NEC VR5500 processors which do
not implement the full MIPS32 / MIPS64 architecture.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Quoting from Loongson2FUserGuide.pdf:

5.22.1 Hazards
The processor detects most of the pipeline hazards in hardware, including
CP0 hazards and load hazards. No NOP instructions are required to correct
instruction sequences.
Signed-off-by: NZhang Le <r0bertz@gentoo.org>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The compat.h does not need seccomp.h since TIF_32BIT was moved to
thread_info.h

This fixes a build error of 64-bit kernel without CONFIG_SECCOMP.
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: N: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The LTP timerfd01 test is failing (blocking forever) on the 32-bit ABIs. We
need to use the compat_* wrappers for these system calls.
Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Introduced by 99aa5029937ee926e3b249369e208d7013cd381b.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

I have taken Wu Zhangjin's and Philippe Vachon's version as references,
did a little modification and tested on 16K page size kernel. It works
well.

Unfornately although it already has defined cpu_has_dc_aliases as 1, 4k
page size still not working.  More work needed here.
Signed-off-by: NZhang Le <r0bertz@gentoo.org>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The following symbols are needlessly defined global:

default_mode
default_var
gbe_mem_phys
gbe_turn_off
gbefb_exit
gbefb_init
gbefb_setup

This error was noticed by namespacecheck when compiling ip32_defconfig.

This patch makes the symbols static.
Signed-off-by: NDmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The following symbols are needlessly defined global: cpuerr_irq and
memerr_irq. This patch makes the symbols static.
Signed-off-by: NDmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The file arch/mips/sgi-ip32/ip32-berr.c needlessly defines the function
ip32_be_handler() as global, and this patch makes it static.
Signed-off-by: NDmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The file arch/mips/mm/sc-rm7k.c needlessly defines two global symbols:

rm7k_sc_ops
rm7k_tcache_enabled

This patch makes these symbols static.
Signed-off-by: NDmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

au1xxx_power_dev_t? is never defined;  get rid of all PM stuff as well
since it is not in the driver source anyway.
Signed-off-by: NManuel Lauss <mano@roarinelk.homelinux.net>
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Commit 779e7d41 created a name collision
in SMTC builds.  The attached patch corrects this in a a
not-too-terribly-ugly manner.  Note that the SMTC case has to come
first, because CEVT_R4K will also be true.
Signed-off-by: NKevin D. Kissell <kevink@paralogos.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NKevin D. Kissell <kevink@paralogos.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

* git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6:
  xtensa: Fix linker script to include .literal sections
  xtensa: update s6105_defconfig for ccount calibration
  xtensa: implement ccount calibration for s6000
  xtensa: fix wrong extern declaration renamed in code using it
  xtensa: register gpio chip before use
  xtensa: always use correct stack pointer for stack traces
  xtensa: Fix checksum header file
  xtensa: Fix architecture specific Kconfig

* git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus:
  Squashfs: cody tidying, remove commented out line in Makefile
  Squashfs: check page size is not larger than the filesystem block size
  Squashfs: fix breakage when page size > metadata block size

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: destroy bdi on error