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Catalin Marinas ad642d9f58 ARM: 6188/1: Add a config option for the ARM11MPCore DMA cache maintenance workaround 
Commit f4d6477f introduced a workaround for the lack of hardware
broadcasting of the cache maintenance operations on ARM11MPCore.
However, the workaround is only valid on CPUs that do not do speculative
loads into the D-cache.

This patch adds a Kconfig option with the corresponding help to make the
above clear. When the DMA_CACHE_RWFO option is disabled, the kernel
behaviour is that prior to the f4d6477f commit. This also allows ARMv6
UP processors with speculative loads to work correctly.

For other processors, a different workaround may be needed.

Cc: Ronen Shitrit <rshitrit@marvell.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-01 10:12:31 +01:00
..
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
Add core support for ARMv6/v7 big-endian
2009-05-30 14:00:18 +01:00
abort-ev7.S
arm: mm: qsd8x50: Fix incorrect permission faults
2010-05-03 11:15:05 -07:00
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] 5227/1: Add the ENDPROC declarations to the .S files
2008-09-01 12:06:34 +01:00
alignment.c
Merge branch 'devel-stable' into devel
2010-05-17 17:24:04 +01:00
cache-fa.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
cache-feroceon-l2.c
[ARM] Kirkwood: small L2 code cleanup
2009-03-28 22:39:30 -04:00
cache-l2x0.c
Merge branch 'devel-stable' into devel
2010-05-17 17:24:04 +01:00
cache-tauros2.c
ARM: Add Tauros2 L2 cache controller support
2009-11-27 15:43:21 -05:00
cache-v3.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
cache-v4.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
cache-v4wb.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
cache-v4wt.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
cache-v6.S
ARM: 6188/1: Add a config option for the ARM11MPCore DMA cache maintenance workaround
2010-07-01 10:12:31 +01:00
cache-v7.S
ARM: 6139/1: ARMv7: Use the Inner Shareable I-cache on MP
2010-05-20 23:52:38 +01:00
cache-xsc3l2.c
[ARM] pxa: do not enable L2 after MMU is enabled
2010-01-01 15:50:34 +08:00
context.c
ARM: 5905/1: ARM: Global ASID allocation on SMP
2010-02-15 21:39:51 +00:00
copypage-fa.c
ARM: Gemini: fix compiler error in copypage-fa.c
2010-04-27 12:45:10 +02:00
copypage-feroceon.c
ARM: 6164/1: Add kto and kfrom to input operands list.
2010-06-08 19:42:18 +01:00
copypage-v3.c
ARM: Pass VMA to copy_user_highpage() implementations
2009-10-05 15:17:45 +01:00
copypage-v4mc.c
ARM: Pass VMA to copy_user_highpage() implementations
2009-10-05 15:17:45 +01:00
copypage-v4wb.c
ARM: 6164/1: Add kto and kfrom to input operands list.
2010-06-08 19:42:18 +01:00
copypage-v4wt.c
ARM: 6164/1: Add kto and kfrom to input operands list.
2010-06-08 19:42:18 +01:00
copypage-v6.c
ARM: 6007/1: fix highmem with VIPT cache and DMA
2010-04-14 11:11:27 +01:00
copypage-xsc3.c
ARM: 6164/1: Add kto and kfrom to input operands list.
2010-06-08 19:42:18 +01:00
copypage-xscale.c
ARM: Pass VMA to copy_user_highpage() implementations
2009-10-05 15:17:45 +01:00
discontig.c
mm: move bootmem descriptors definition to a single place
2008-07-24 10:47:14 -07:00
dma-mapping.c
ARM: 6186/1: Avoid the CONSISTENT_DMA_SIZE warning on noMMU builds
2010-07-01 10:12:07 +01:00
extable.c
[ARM] Convert asm/uaccess.h to linux/uaccess.h
2008-09-06 11:35:55 +01:00
fault-armv.c
Merge branch 'devel-stable' into devel
2010-05-17 17:24:04 +01:00
fault.c
ARM: 6166/1: Proper prefetch abort handling on pre-ARMv6
2010-06-08 19:39:57 +01:00
fault.h
[ARM] do_bad_area() always takes current and current->active_mm
2006-09-27 16:13:48 +01:00
flush.c
ARM: 6007/1: fix highmem with VIPT cache and DMA
2010-04-14 11:11:27 +01:00
highmem.c
ARM: 6165/1: trap overflows on highmem pages from kmap_atomic when debugging
2010-06-08 19:25:50 +01:00
init.c
ARM: 6144/1: TCM memory bug freeing bug
2010-05-27 10:36:07 +01:00
iomap.c
[ARM] Convert asm/io.h to linux/io.h
2008-09-06 12:10:45 +01:00
ioremap.c
ARM: Add caller information to ioremap
2010-02-15 21:39:11 +00:00
Kconfig
ARM: 6188/1: Add a config option for the ARM11MPCore DMA cache maintenance workaround
2010-07-01 10:12:31 +01:00
Makefile
ARM: Ensure ARMv6/7 mm files are built using appropriate assembler options
2010-01-12 19:02:05 +00:00
mm.h
ARM: Move memory mapping into mmu.c
2010-05-15 15:03:49 +01:00
mmap.c
fix broken aliasing checks for MAP_FIXED on sparc32, mips, arm and sh
2009-12-11 06:44:59 -05:00
mmu.c
Merge branch 'for-linus/samsung4' of git://git.fluff.org/bjdooks/linux
2010-05-19 11:49:33 -07:00
nommu.c
ARM: 6106/1: Implement copy_to_user_page() for noMMU
2010-05-08 10:44:22 +01:00
pabort-legacy.S
ARM: 5727/1: Pass IFSR register to do_PrefetchAbort()
2009-10-02 22:34:32 +01:00
pabort-v6.S
ARM: 5727/1: Pass IFSR register to do_PrefetchAbort()
2009-10-02 22:34:32 +01:00
pabort-v7.S
ARM: 5727/1: Pass IFSR register to do_PrefetchAbort()
2009-10-02 22:34:32 +01:00
pgd.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
proc-arm6_7.S
ARM: Fix wrong register in proc-arm6_7.S data abort handler
2010-02-03 15:48:03 +00:00
proc-arm7tdmi.S
ARM: 5727/1: Pass IFSR register to do_PrefetchAbort()
2009-10-02 22:34:32 +01:00
proc-arm9tdmi.S
ARM: 5727/1: Pass IFSR register to do_PrefetchAbort()
2009-10-02 22:34:32 +01:00
proc-arm720.S
ARM: 5727/1: Pass IFSR register to do_PrefetchAbort()
2009-10-02 22:34:32 +01:00
proc-arm740.S
ARM: 5727/1: Pass IFSR register to do_PrefetchAbort()
2009-10-02 22:34:32 +01:00
proc-arm920.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
proc-arm922.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
proc-arm925.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
proc-arm926.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
proc-arm940.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
proc-arm946.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
proc-arm1020.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
proc-arm1020e.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
proc-arm1022.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
proc-arm1026.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
proc-fa526.S
ARM: 5727/1: Pass IFSR register to do_PrefetchAbort()
2009-10-02 22:34:32 +01:00
proc-feroceon.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
proc-macros.S
Merge branch 'devel-stable' into devel
2009-09-12 12:02:26 +01:00
proc-mohawk.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
proc-sa110.S
ARM: 5727/1: Pass IFSR register to do_PrefetchAbort()
2009-10-02 22:34:32 +01:00
proc-sa1100.S
ARM: fix build error in arch/arm/kernel/process.c
2010-04-21 08:45:21 +01:00
proc-syms.c
ARM: add size argument to __cpuc_flush_dcache_page
2009-12-14 14:53:22 +00:00
proc-v6.S
ARM: 5888/1: arm: Update comments in cacheflush.h and remove unnecessary V6 and V7 comments
2010-01-19 23:11:56 +00:00
proc-v7.S
ARM: 5888/1: arm: Update comments in cacheflush.h and remove unnecessary V6 and V7 comments
2010-01-19 23:11:56 +00:00
proc-xsc3.S
Merge branches 'at91', 'cache', 'cup', 'ep93xx', 'ixp4xx', 'nuc', 'pending-dma-streaming', 'u300' and 'umc' into devel
2010-02-25 22:06:43 +00:00
proc-xscale.S
ARM: dma-mapping: remove dmac_clean_range and dmac_inv_range
2010-02-15 15:22:23 +00:00
tlb-fa.S
ARM: Add support for FA526 v2
2009-03-25 13:10:01 +02:00
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: Use __INIT macro instead of .text.init.
2009-04-27 19:51:58 -07:00
tlb-v7.S
ARM: 6112/1: Use the Inner Shareable I-cache and BTB ops on ARMv7 SMP
2010-05-08 10:44:30 +01:00
vmregion.c
ARM: dma-mapping: split out vmregion code from dma coherent mapping code
2009-11-24 17:41:34 +00:00
vmregion.h
ARM: dma-mapping: split out vmregion code from dma coherent mapping code
2009-11-24 17:41:34 +00:00