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

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>

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

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

* Kill dead codes
* Rearrange irq chip handlers
* Minimize defconfig
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

This patch has merged GT64111 PCI routines and GT64120 PCI_0 routines.
GT64111 PCI is almost the same as GT64120's PCI_0.
This patch don't change GT64120 PCI routines.
Signed-off-by: NYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

It's removed #ifdef CONFIG_PCI/#endif from cobalt setup.c .
Signed-off-by: NYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>

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

This did cause oprofile to fail on non-multithreaded systems with more
than 2 processors such as the BCM1480.

Reported by Manish Lachwani (mlachwani@mvista.com).
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

With commit 63dc68a8, kernel can not
handle BUG() and BUG_ON() properly since get_user() returns false for
kernel code.  Use __get_user() to skip unnecessary access_ok().  This
patch also make BRK_BUG code encoded in the TNE instruction.
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The save_fp_context()/restore_fp_context() might sleep on accessing
user stack and therefore might lose FPU ownership in middle of them.

If these function failed due to "in_atomic" test in do_page_fault,
touch the sigcontext area in non-atomic context and retry these
save/restore operation.

This is a replacement of a (broken) fix which was titled "Allow CpU
exception in kernel partially".
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The commit 4d40bff7110e9e1a97ff8c01bdd6350e9867cc10 ("Allow CpU
exception in kernel partially") was broken.  The commit was to fix
theoretical problem but broke usual case.  Revert it for now.
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Recent versions of the BCM112X processors aren't recognized by Linux
(preventing Linux from booting on those processors).  This patch adds
support for those that are missing.
Signed-off-by: NMark Mason <mason@broadcom.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

local_irq_restore -> raw_local_irq_restore -> irq_restore_epilog ->
	smtc_ipi_replay -> smtc_ipi_dq -> spin_unlock_irqrestore ->
	_spin_unlock_irqrestore -> local_irq_restore

The recursion does abort when there is no more IPI queued for a CPU, so
this isn't usually fatal which is why we got away with this for so long
until this was discovered by code inspection.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NMark Mason <mason@broadcom.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Original patch posted by Deepak Saxena <dsaxena@plexity.net>.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Make smtc_setup_irq() update the list of interrupts which need to be
watched by the debug code itself.  Also there is no need to initialize the
IPI swint when running with a single VPE, so don't initialize it.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

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

Between the mtc0 or di instruction that disables interrupts and the
following hazard barrier a processor may still take interrupts.  If an
interrupt is taken after interrupts are disabled but before the state
is updated it will appear to restore_all that it is incorrectly returning
with interrupts disabled.
Signed-off-by: NChris Dearman <chris@mips.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Check the IEP bit for R3000 style processors when checking to see if
interrupts will be reenabled in restore_all.
Signed-off-by: NChris Dearman <chris@mips.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

So until MIPS_MT_SMTC_INSTANT_REPLAY has been rewritten to solve this
issue, don't allow selecting it with PREEMPT.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/pci/pci-ev64120.c:10: warning: implicit declaration of function 'allocate_irqno'
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Remove unused variable.
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>

  CC      arch/mips/mm/cerr-sb1.o
arch/mips/mm/cerr-sb1.c: In function 'sb1_cache_error':
arch/mips/mm/cerr-sb1.c:235: warning: format '%010llx' expects type 'long long unsigned int', but argument 2 has type 'uint64_t'
arch/mips/mm/cerr-sb1.c: In function 'extract_ic':
arch/mips/mm/cerr-sb1.c:385: warning: format '%016llx' expects type 'long long unsigned int', but argument 3 has type 'uint64_t'
arch/mips/mm/cerr-sb1.c:385: warning: format '%016llX' expects type 'long long unsigned int', but argument 6 has type 'uint64_t'
arch/mips/mm/cerr-sb1.c: In function 'extract_dc':
arch/mips/mm/cerr-sb1.c:523: warning: format '%010llx' expects type 'long long unsigned int', but argument 3 has type 'uint64_t'
arch/mips/mm/cerr-sb1.c:523: warning: format '%016llX' expects type 'long long unsigned int', but argument 7 has type 'uint64_t'
arch/mips/mm/cerr-sb1.c:570: warning: format '%016llX' expects type 'long long unsigned int', but argument 3 has type 'uint64_t'
  LD      arch/mips/mm/built-in.o
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/jazz/jazzdma.c:70: warning: assignment makes integer from pointer without a cast
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>

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

This patch fixes two places where we used plain 'x - PAGE_OFFSET' to
achieve virtual to physical address convertions. This type of convertion
is no more allowed since commit 6f284a2c.
Reported-by: NMaxime Bizon <mbizon@freebox.fr>
Signed-off-by: NFranck Bui-Huu <fbuihuu@gmail.com>

[Build fixes for machines that don't use the generic dma-coherence.h]
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Otherwise objdump will screw up disassembly.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Allows overriding the MALTA/ATLAS/etc. default console setting with
non-serial console devices.
Signed-Off-By: NThiemo Seufer <ths@networkno.de>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

 o adds missing ST0_IM masks, which caused the logging of valid interrupts
   as spurious
 o stops pnx8550 to log every interrupt as spurious
 o adds cause register masks for ip22/ip32, which caused handling of masked
   interrupts
 o removes some superfluous parentheses in the SNI interrupt code
Signed-Off-By: NThiemo Seufer <ths@networkno.de>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Might be useful for SMP debugging.
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

[Rewritten Kconfig bits to deal better fit in the usual pattern of doing
things - Ralf]
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>

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