Commit Graph

1189 Commits

Author SHA1 Message Date
Ralf Baechle
8a1e97ee2e [MIPS] SMTC: Fix recursion in instant IPI replay code.
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: Ralf Baechle <ralf@linux-mips.org>
2007-03-29 23:46:36 +01:00
Mark Mason
6c9fde4bff [MIPS] BCM1480: Fix setting of irq affinity.
Signed-off-by: Mark Mason <mason@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-29 23:46:36 +01:00
Ralf Baechle
d6f703602f [MIPS] do_page_fault() needs to use raw_smp_processor_id().
Original patch posted by Deepak Saxena <dsaxena@plexity.net>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-29 23:46:36 +01:00
Ralf Baechle
20bb25d10f [MIPS] SMTC: Fix false trigger of debug code on single VPE.
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: Ralf Baechle <ralf@linux-mips.org>
2007-03-29 23:46:36 +01:00
Ralf Baechle
ae036b7908 [MIPS] SMTC: irq_{enter,leave} and kstats keeping for relayed timer ints.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-29 23:46:35 +01:00
Chris Dearman
fe99f1b184 [MIPS] lockdep: Deal with interrupt disable hazard in TRACE_IRQFLAGS
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: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-29 23:46:35 +01:00
Chris Dearman
cbde5ebc97 [MIPS] lockdep: Handle interrupts in R3000 style c0_status register.
Check the IEP bit for R3000 style processors when checking to see if
interrupts will be reenabled in restore_all.

Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-29 23:46:35 +01:00
Ralf Baechle
619af723ac [MIPS] MT: MIPS_MT_SMTC_INSTANT_REPLAY currently conflicts with PREEMPT.
So until MIPS_MT_SMTC_INSTANT_REPLAY has been rewritten to solve this
issue, don't allow selecting it with PREEMPT.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-29 23:46:35 +01:00
Ralf Baechle
af2944ac54 [MIPS] EV64120: Include <asm/irq.h> to fix warning.
arch/mips/pci/pci-ev64120.c:10: warning: implicit declaration of function 'allocate_irqno'

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-29 23:46:35 +01:00
Ralf Baechle
9486d594ba [MIPS] Ocelot: Fix warning.
Remove unused variable.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-29 23:46:35 +01:00
Ralf Baechle
448f283c11 [MIPS] Ocelot: Give PMON_v1_setup a proper prototype.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-29 23:46:34 +01:00
Ralf Baechle
8fb303c7f1 [MIPS] SB1250: Fix bugs/warnings by creative use of volatile.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-24 17:01:50 +00:00
Ralf Baechle
41a8198f61 [MIPS] SB1: Fix pile of gcc's bogus format string warnings.
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: Ralf Baechle <ralf@linux-mips.org>
2007-03-24 17:01:50 +00:00
Ralf Baechle
bf9f88a219 [MIPS] Jazz: Fix warning.
arch/mips/jazz/jazzdma.c:70: warning: assignment makes integer from pointer without a cast

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-24 17:01:50 +00:00
Ralf Baechle
e007566d13 [MIPS] R3000: local_flush_data_cache_page take a pointer argument.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-24 17:01:50 +00:00
Ralf Baechle
7575a49f20 [MIPS] Implement flush_anon_page().
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-24 17:01:49 +00:00
Atsushi Nemoto
80e89593e5 [MIPS] SPARSEMEM: The first pfn of zone should be min_low_pfn, not 0.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-24 17:01:49 +00:00
Franck Bui-Huu
c9d0696223 [MIPS] Always use virt_to_phys() when translating kernel addresses
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 6f284a2ce7.

Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>

[Build fixes for machines that don't use the generic dma-coherence.h]

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-24 17:01:49 +00:00
Ralf Baechle
7df4246117 [MIPS] Export except_vec_vi_{mori,lui,ori} as text symbols.
Otherwise objdump will screw up disassembly.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-19 20:22:44 +00:00
Thiemo Seufer
43e3c885d0 [MIPS] mips-boards: More liberal check for mips-board console
Allows overriding the MALTA/ATLAS/etc. default console setting with
non-serial console devices.

Signed-Off-By: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-19 20:22:43 +00:00
Thiemo Seufer
119537c092 [MIPS] Misc fixes for plat_irq_dispatch functions
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: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-19 20:22:43 +00:00
Atsushi Nemoto
72ede9b189 [MIPS] Qemu: Fix Symmetric Uniprocessor support.
Might be useful for SMP debugging.

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

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

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-19 20:22:43 +00:00
Ralf Baechle
8c3644350f [MIPS] VI: TRACE_IRQS_OFF clobbers $v0, so save & restore around call.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-19 20:22:43 +00:00
Ralf Baechle
f510aa3bdb [MIPS] Kconfig: Move missplaced NR_CPUS default from SMTC to VSMP.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-17 01:03:29 +00:00
Ralf Baechle
46230aa6ea [MIPS] RTLX: Handle copy_*_user return values.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-17 01:03:29 +00:00
Ralf Baechle
bc4809e939 [MIPS] RTLX: Protect rtlx_{read,write} with mutex.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-17 01:03:28 +00:00
Ralf Baechle
61dcc6f4d9 [MIPS] RTLX: Harden against compiler reordering and optimization.
RTLX communication is based on lock-free shared memory buffers.  It
happened to be working by luck so far but relies on the optimizer doing
certain optimizations but no reordering.

Fixed by inserting proper barriers in rtlx_read and rtlx_write, and careful
pointer dereferencing.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-17 01:03:27 +00:00
Ralf Baechle
9e34682026 [MIPS] RTLX: Don't use volatile; it's fragile.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-17 01:03:27 +00:00
Ralf Baechle
080e948c07 [MIPS] Lasat: Downgrade 64-bit kernel from experimental to broken.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-17 01:03:27 +00:00
Ralf Baechle
65f8ebe063 [MIPS] Compat: Fix build if CONFIG_SYSVIPC is disabled.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-17 01:03:26 +00:00
Atsushi Nemoto
53dc80287d [MIPS] FPU ownership management & preemption fixes
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-17 01:03:26 +00:00
Atsushi Nemoto
c6a2f46793 [MIPS] Check FCSR for pending interrupts, alternative version
Commit 6d6671066a is incomplete and misses
non-r4k CPUs.  This patch reverts the commit and fixes in other way.

 o Do FCSR checking in caller of restore_fp_context.
 o Send SIGFPE if the signal handler set any FPU exception bits.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-17 01:03:25 +00:00
Ralf Baechle
0e6ee854e7 [MIPS] kspd: ioctl needs a translation entry.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-13 16:59:31 +00:00
Ralf Baechle
aea0e582d3 [MIPS] Viper2: Remove defective support.
A defconfig file and the 10 lines of code (including comments ...) that
are rotting since lmo commit 6516a42dc8b40c6c00010346dd51496125b16644
don't quite make proper support, so let's trash it.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-13 16:59:31 +00:00
Chris Dearman
795a22583b [MIPS] Oprofile: Reset all performance registers for MIPS_MT_SMP configs
Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-13 16:59:31 +00:00
Ralf Baechle
bb9b813bb6 [MIPS] Sibyte: Fix ZBbus profiler
o Fix build error.
 o Handle error returns.
 o Deal with signals received while sleeping.
 o Don't allow to be selected when we're not building the directory with
   the driver anyway.
 o Coding style cleanups.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-09 20:27:31 +00:00
Ralf Baechle
ca6f5494f5 [MIPS] Sibyte: Do not allow enabling LDT support if PCI is disabled.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-09 20:27:30 +00:00
Ralf Baechle
8960909ca7 [MIPS] DEC: Remove call to register_prom_console.
Register_prom_console was removed when mips was converted to early printk.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-09 12:14:52 +00:00
Davide Libenzi
f6dfb4fd7d [PATCH] Add epoll compat_ code to fs/compat.c
IA64 and ARM-OABI are currently using their own version of epoll compat_
code.

An architecture needs epoll_event translation if alignof(u64) in 32 bit
mode is different from alignof(u64) in 64 bit mode.  If an architecture
needs epoll_event translation, it must define struct compat_epoll_event in
asm/compat.h and set CONFIG_HAVE_COMPAT_EPOLL_EVENT and use
compat_sys_epoll_ctl and compat_sys_epoll_wait.

All 64 bit architecture should use compat_sys_epoll_pwait.

[sfr: restructure and move to fs/compat.c, remove MIPS version
of compat_sys_epoll_pwait, use __put_user_unaligned]

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-08 07:38:22 -08:00
Ralf Baechle
b2e569d876 [MIPS] ARC: Fix several compiler warnings.
CC      arch/mips/arc/init.o
arch/mips/arc/init.c: In function 'prom_init':
arch/mips/arc/init.c:27: warning: ISO C90 forbids mixed declarations and code
arch/mips/arc/init.c:35: warning: format ‘%08lx’ expects type ‘long unsigned int’, but argument 2 has type 'ULONG'
arch/mips/arc/init.c:28: warning: unused variable 'c'
arch/mips/arc/init.c:27: warning: unused variable ‘cnt’

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-08 01:10:30 +00:00
Linus Torvalds
185d84b4e1 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] IP27: Build fix
  [MIPS] Wire up ioprio_set and ioprio_get.
  [MIPS] Fix __raw_read_trylock() to allow multiple readers
  [MIPS] Export __copy_user_inatomic.
  [MIPS] R2 bitops compile fix for gcc < 4.0.
  [MIPS] TX39: Remove redundant tx39_blast_icache() calls
  [MIPS] Cobalt: Fix early printk
  [MIPS] SMTC: De-obscure Malta hooks.
  [MIPS] SMTC: Add fordward declarations for mm_struct and task_struct.
  [MIPS] SMTC: <asm/mips_mt.h> must include <linux/cpumask.h>
  [MIPS] SMTC: <asm/smtc_ipi.h> must include <linux/spinlock.h>
  [MIPS] Atlas, Malta: Fix build warning.
2007-03-06 18:02:46 -08:00
Ralf Baechle
063ea774b0 [MIPS] IP27: Build fix
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-07 00:07:18 +00:00
Ralf Baechle
08253b39f8 [MIPS] Wire up ioprio_set and ioprio_get.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-07 00:07:18 +00:00
Ralf Baechle
d0c91ae2bb [MIPS] Export __copy_user_inatomic.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-07 00:07:17 +00:00
Atsushi Nemoto
a5664c4075 [MIPS] TX39: Remove redundant tx39_blast_icache() calls
Apply commit 0550d9d13e to c-tx39.c too.
And fix a warning in local_tx39_flush_data_cache_page().

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-07 00:07:16 +00:00
Yoichi Yuasa
0a22e0d43b [MIPS] Cobalt: Fix early printk
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-07 00:07:16 +00:00
Ralf Baechle
57a2050c40 [MIPS] SMTC: De-obscure Malta hooks.
Should now be understandable why the thing works ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-07 00:07:16 +00:00
Ralf Baechle
f76b7ea48a [MIPS] Atlas, Malta: Fix build warning.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-07 00:07:15 +00:00
Dale Farnsworth
84dd619e4d mv643xx_eth: Place explicit port number in mv643xx_eth_platform_data
We were using the platform_device.id field to identify which ethernet
port is used for mv643xx_eth device.  This is not generally correct.
It will be incorrect, for example, if a hardware platform uses a single
port but not the first port.  Here, we add an explicit port_number field
to struct mv643xx_eth_platform_data.

This makes the mv643xx_eth_platform_data structure required, but that
isn't an issue since all users currently provide it already.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-06 06:14:54 -05:00
Florian Fainelli
8b4ac6f316 [MIPS] MTX1: clear PCI errors
This patch clears PCI errors after showing more debug informations.

Signed-off-by: Florian Fainelli <florian.fainelli@int-evry.fr>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-04 19:02:45 +00:00