Russell King 0214f9221a [ARM] Fix FIQ issue with ARM926 ...

Jon Eibertzon writes:
> We have noticed that the I-cache is disabled while waiting for
> interrupt in cpu_arm926_do_idle in arch/arm/mm/proc-arm926.S
> and we are curious to know why, because this causes us a great
> performance hit when executing in FIQ-handlers. Is it assumed
> here that every individual FIQ-handler re-enables the I-cache?

The I-cache disable is an errata workaround, so the solution is to
disable FIQs across the section with the I-cache disabled.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2007-10-31 15:21:40 +00:00

..

abort-ev4.S

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

abort-ev4t.S

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

abort-ev5t.S

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

abort-ev5tj.S

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

abort-ev6.S

[ARM] CONFIG_CPU_MPCORE -> CONFIG_CPU_32v6K

2006-02-22 21:13:28 +00:00

abort-ev7.S

[ARM] armv7: add support for ARMv7 cores.

2007-05-08 22:55:53 +01:00

abort-lv4t.S

[ARM] nommu: abort handler fixup for !CPU_CP15_MMU cores.

2006-09-28 20:15:46 +01:00

abort-macro.S

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

abort-nommu.S

[ARM] nommu: abort handler fixup for !CPU_CP15_MMU cores.

2006-09-28 20:15:46 +01:00

alignment.c

Use helpers to obtain task pid in printks (arch code)

2007-10-19 11:53:43 -07:00

cache-l2x0.c

[ARM] 4568/1: fix l2x0 cache invalidate handling of unaligned addresses

2007-09-17 14:56:39 +01:00

cache-v3.S

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

cache-v4.S

[ARM] nommu: manage the CP15 things

2006-09-27 17:34:30 +01:00

cache-v4wb.S

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

cache-v4wt.S

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

cache-v6.S

[ARM] 3356/1: Workaround for the ARM1136 I-cache invalidation problem

2006-03-10 22:26:47 +00:00

cache-v7.S

[ARM] armv7: add support for ARMv7 cores.

2007-05-08 22:55:53 +01:00

consistent.c

[ARM] Rename consistent_sync() as dma_cache_maint()

2007-10-12 23:43:45 +01:00

context.c

Merge branches 'armv7', 'at91', 'misc' and 'omap' into devel

2007-05-09 10:41:28 +01:00

copypage-v3.S

[ARM] Remove LOADREGS macro

2006-06-25 11:23:45 +01:00

copypage-v4mc.c

[ARM] 4078/1: Fix ARM copypage cache coherency problems

2006-12-30 17:05:08 +00:00

copypage-v4wb.S

kbuild: arm - use generic asm-offsets.h support

2005-09-09 21:08:59 +02:00

copypage-v4wt.S

kbuild: arm - use generic asm-offsets.h support

2005-09-09 21:08:59 +02:00

copypage-v6.c

[ARM] 4078/1: Fix ARM copypage cache coherency problems

2006-12-30 17:05:08 +00:00

copypage-xsc3.S

[ARM] 3377/2: add support for intel xsc3 core

2006-03-28 21:00:40 +01:00

copypage-xscale.c

[ARM] 4078/1: Fix ARM copypage cache coherency problems

2006-12-30 17:05:08 +00:00

discontig.c

[ARM] Cleanup ARM includes

2006-01-03 17:39:34 +00:00

extable.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

fault-armv.c

[ARM] 4191/1: Remove redundant __flush_dcache_page() function prototype

2007-02-16 12:57:55 +00:00

fault.c

pid namespaces: define is_global_init() and is_container_init()

2007-10-19 11:53:37 -07:00

fault.h

[ARM] do_bad_area() always takes current and current->active_mm

2006-09-27 16:13:48 +01:00

flush.c

[ARM] Resolve fuse and direct-IO failures due to missing cache flushes

2007-01-08 19:49:58 +00:00

init.c

[ARM] Remove needless linux/ptrace.h includes

2007-04-21 20:34:47 +01:00

iomap.c

[ARM] nommu: add stubs for ioremap and friends

2006-06-28 17:59:48 +01:00

ioremap.c

[ARM] Fix bounding error in ioremap_pfn()

2007-07-12 11:13:33 +01:00

Kconfig

[ARM] pxa: PXA3xx base support

2007-10-15 18:53:43 +01:00

Makefile

[ARM] 4394/1: ARMv7: Add the TLB range operations

2007-05-30 14:32:07 +01:00

mm.h

[ARM] mm 6: allow mem_types table to specify extended pte attributes

2007-04-21 20:36:02 +01:00

mmap.c

Detach sched.h from mm.h

2007-05-21 09:18:19 -07:00

mmu.c

[ARM] 4497/1: Only allow safe cache configurations on ARMv6 and later

2007-07-20 21:42:35 +01:00

nommu.c

[ARM] mm 10: allow memory type to be specified with ioremap

2007-05-05 20:59:27 +01:00

pgd.c

[ARM] Unuse another Linux PTE bit

2006-12-13 14:34:43 +00:00

proc-arm6_7.S

[ARM] Unuse another Linux PTE bit

2006-12-13 14:34:43 +00:00

proc-arm7tdmi.S

[ARM] Include asm/elf.h instead of asm/procinfo.h

2006-11-30 12:24:46 +00:00

proc-arm9tdmi.S

[ARM] Include asm/elf.h instead of asm/procinfo.h

2006-11-30 12:24:46 +00:00

proc-arm720.S

[ARM] Unuse another Linux PTE bit

2006-12-13 14:34:43 +00:00

proc-arm740.S

[ARM] Include asm/elf.h instead of asm/procinfo.h

2006-11-30 12:24:46 +00:00

proc-arm920.S

[ARM] Unuse another Linux PTE bit

2006-12-13 14:34:43 +00:00

proc-arm922.S

[ARM] Unuse another Linux PTE bit

2006-12-13 14:34:43 +00:00

proc-arm925.S

[ARM] Unuse another Linux PTE bit

2006-12-13 14:34:43 +00:00

proc-arm926.S

[ARM] Fix FIQ issue with ARM926

2007-10-31 15:21:40 +00:00

proc-arm940.S

[ARM] Include asm/elf.h instead of asm/procinfo.h

2006-11-30 12:24:46 +00:00

proc-arm946.S

[ARM] Include asm/elf.h instead of asm/procinfo.h

2006-11-30 12:24:46 +00:00

proc-arm1020.S

[ARM] Unuse another Linux PTE bit

2006-12-13 14:34:43 +00:00

proc-arm1020e.S

[ARM] Unuse another Linux PTE bit

2006-12-13 14:34:43 +00:00

proc-arm1022.S

[ARM] Unuse another Linux PTE bit

2006-12-13 14:34:43 +00:00

proc-arm1026.S

[ARM] Unuse another Linux PTE bit

2006-12-13 14:34:43 +00:00

proc-macros.S

[ARM] armv7: add support for ARMv7 cores.

2007-05-08 22:55:53 +01:00

proc-sa110.S

[ARM] Unuse another Linux PTE bit

2006-12-13 14:34:43 +00:00

proc-sa1100.S

[ARM] Unuse another Linux PTE bit

2006-12-13 14:34:43 +00:00

proc-syms.c

[ARM] 4502/1: nommu: Do not export the copy/clear user page functions

2007-07-20 21:29:51 +01:00

proc-v6.S

Merge Realview GIC code

2007-02-15 15:07:40 +00:00

proc-v7.S

[ARM] 4503/1: nommu: Add noMMU support for ARMv7

2007-07-20 21:42:13 +01:00

proc-xsc3.S

[ARM] 4123/1: xsc3: general cleanup

2007-02-08 14:48:44 +00:00

proc-xscale.S

[ARM] 4311/1: ixp4xx: add KIXRP435 platform

2007-04-21 20:51:55 +01:00

tlb-v3.S

kbuild: arm - use generic asm-offsets.h support

2005-09-09 21:08:59 +02:00

tlb-v4.S

kbuild: arm - use generic asm-offsets.h support

2005-09-09 21:08:59 +02:00

tlb-v4wb.S

kbuild: arm - use generic asm-offsets.h support

2005-09-09 21:08:59 +02:00

tlb-v4wbi.S

kbuild: arm - use generic asm-offsets.h support

2005-09-09 21:08:59 +02:00

tlb-v6.S

[ARM] 4129/1: Add barriers after the TLB operations

2007-02-08 14:49:27 +00:00

tlb-v7.S

[ARM] 4394/1: ARMv7: Add the TLB range operations

2007-05-30 14:32:07 +01:00