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Will Deacon f630c1bdfb ARM: 7091/1: errata: D-cache line maintenance operation by MVA may not succeed 
This patch implements a workaround for erratum 764369 affecting
Cortex-A9 MPCore with two or more processors (all current revisions).
Under certain timing circumstances, a data cache line maintenance
operation by MVA targeting an Inner Shareable memory region may fail to
proceed up to either the Point of Coherency or to the Point of
Unification of the system. This workaround adds a DSB instruction before
the relevant cache maintenance functions and sets a specific bit in the
diagnostic control register of the SCU.

Cc: <stable@kernel.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 		2011-09-17 12:47:17 +01:00
..
Kconfig Merge branch 'next/devel' of ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc 2011-07-26 17:41:04 -07:00
Makefile ARM: v6k: introduce CPU_V6K option 2011-02-02 21:23:26 +00:00
abort-ev4.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev4t.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev5t.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev5tj.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev6.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev7.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-lv4t.S ARM: entry: data abort: ensure r5 is preserved by abort functions 2011-07-02 10:56:12 +01:00
abort-macro.S ARM: 7088/1: entry: fix wrong parameter name used in do_thumb_abort 2011-09-10 23:39:56 +01:00
abort-nommu.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
alignment.c ARM: 7008/1: alignment: Make SIGBUS sent to userspace POSIXly correct 2011-08-09 08:42:39 +01:00
cache-fa.S ARM: mm: cache-fa: Use the new processor struct macros 2011-07-07 15:31:05 +01:00
cache-feroceon-l2.c ARM: fix cache-feroceon-l2 after stack based kmap_atomic() 2010-12-19 12:57:16 -05:00
cache-l2x0.c ARM: 7080/1: l2x0: make sure I&D are not locked down on init 2011-09-07 00:48:03 +01:00
cache-tauros2.c
…
cache-v3.S ARM: mm: cache-v3: Use the new processor struct macros 2011-07-07 15:31:05 +01:00
cache-v4.S ARM: mm: cache-v4: Use the new processor struct macros 2011-07-07 15:31:06 +01:00
cache-v4wb.S ARM: mm: cache-v4wb: Use the new processor struct macros 2011-07-07 15:31:06 +01:00
cache-v4wt.S ARM: mm: cache-v4wt: Use the new processor struct macros 2011-07-07 15:31:06 +01:00
cache-v6.S ARM: mm: cache-v6: Use the new processor struct macros 2011-07-07 15:31:06 +01:00
cache-v7.S ARM: 7091/1: errata: D-cache line maintenance operation by MVA may not succeed 2011-09-17 12:47:17 +01:00
cache-xsc3l2.c ARM: fix cache-xsc3l2 after stack based kmap_atomic() 2010-12-19 12:57:08 -05:00
context.c Revert "ARM: 6944/1: mm: allow ASID 0 to be allocated to tasks" 2011-06-09 10:13:16 +01:00
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
…
copypage-v4mc.c ARM: 6379/1: Assume new page cache pages have dirty D-cache 2010-09-19 12:17:43 +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: 6995/2: mm: remove unnecessary cache flush on v6 copypage 2011-07-08 19:46:37 +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: 6379/1: Assume new page cache pages have dirty D-cache 2010-09-19 12:17:43 +01:00
dma-mapping.c ARM: dma: replace ISA_DMA_THRESHOLD with a variable 2011-07-12 11:08:12 +01:00
extable.c
…
fault-armv.c ARM: pgtable: add pud-level code 2011-02-21 19:24:14 +00:00
fault.c Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-07-24 10:20:54 -07:00
fault.h
…
flush.c Merge branches 'consolidate', 'ep93xx', 'fixes', 'misc', 'mmci', 'remove' and 'spear' into for-linus 2011-05-23 19:27:40 +01:00
highmem.c ARM: get rid of kmap_high_l1_vipt() 2010-12-19 12:56:46 -05:00
idmap.c ARM: pgtable: add pud-level code 2011-02-21 19:24:14 +00:00
init.c ARM: 7067/1: mm: keep significant bits in pfn_valid 2011-09-04 10:50:03 +01:00
iomap.c ARM: set vga memory base at run-time 2011-07-12 11:19:29 -05:00
ioremap.c Revert "ARM: relax ioremap prohibition (309caa9) for -final and -stable" 2010-12-24 09:49:52 +00:00
mm.h ARM: dma: replace ISA_DMA_THRESHOLD with a variable 2011-07-12 11:08:12 +01:00
mmap.c ARM: 6877/1: the ADDR_NO_RANDOMIZE personality flag should be honored with mmap() 2011-04-14 09:15:24 +01:00
mmu.c ARM: move memory layout sanity checking before meminfo initialization 2011-07-05 20:27:16 +01:00
nommu.c ARM: move memory layout sanity checking before meminfo initialization 2011-07-05 20:27:16 +01:00
pabort-legacy.S ARM: entry: prefetch abort: tail-call the main prefetch abort handler 2011-07-02 10:56:10 +01:00
pabort-v6.S ARM: entry: prefetch abort: tail-call the main prefetch abort handler 2011-07-02 10:56:10 +01:00
pabort-v7.S ARM: entry: prefetch abort: tail-call the main prefetch abort handler 2011-07-02 10:56:10 +01:00
pgd.c Merge branches 'fixes', 'pgt-next' and 'versatile' into devel 2011-03-20 09:32:12 +00:00
proc-arm6_7.S Merge branch 'devel-stable' into for-next 2011-07-22 23:09:07 +01:00
proc-arm7tdmi.S ARM: mm: proc-arm7tdmi: Use the new processor struct macros 2011-07-07 15:31:08 +01:00
proc-arm9tdmi.S ARM: mm: proc-arm9tdmi: Use the new processor struct macros 2011-07-07 15:31:09 +01:00
proc-arm720.S ARM: mm: proc-arm720: Use the new processor struct macros 2011-07-07 15:31:07 +01:00
proc-arm740.S ARM: mm: proc-arm740: Use the new processor struct macros 2011-07-07 15:31:08 +01:00
proc-arm920.S ARM: pm: arm920/926: fix number of registers saved 2011-08-28 10:39:54 +01:00
proc-arm922.S ARM: mm: proc-arm922: Use the new processor struct macros 2011-07-07 15:31:08 +01:00
proc-arm925.S ARM: mm: proc-arm925: Use the new processor struct macros 2011-07-07 15:31:09 +01:00
proc-arm926.S ARM: pm: arm920/926: fix number of registers saved 2011-08-28 10:39:54 +01:00
proc-arm940.S ARM: mm: proc-arm940: Use the new processor struct macros 2011-07-07 15:31:09 +01:00
proc-arm946.S ARM: 7005/1: freshen up mm/proc-arm946.S 2011-08-09 08:42:38 +01:00
proc-arm1020.S ARM: mm: proc-arm1020: Use the new processor struct macros 2011-07-07 15:31:07 +01:00
proc-arm1020e.S ARM: mm: proc-arm1020e: Use the new processor struct macros 2011-07-07 15:31:07 +01:00
proc-arm1022.S ARM: mm: proc-arm1022: Use the new processor struct macros 2011-07-07 15:31:07 +01:00
proc-arm1026.S ARM: mm: proc-arm1026: Use the new processor struct macros 2011-07-07 15:31:07 +01:00
proc-fa526.S ARM: mm: proc-fa526: Use the new processor struct macros 2011-07-07 15:31:09 +01:00
proc-feroceon.S ARM: mm: proc-feroceon: Use the new processor struct macros 2011-07-07 15:31:10 +01:00
proc-macros.S ARM: Fix build errors caused by adding generic macros 2011-07-21 17:49:54 +01:00
proc-mohawk.S ARM: mm: proc-mohawk: Use the new processor struct macros 2011-07-07 15:31:10 +01:00
proc-sa110.S ARM: mm: proc-sa110: Use the new processor struct macros 2011-07-07 15:31:10 +01:00
proc-sa1100.S ARM: pm: CPU specific code should not overwrite r1 (v:p offset) 2011-08-28 10:39:53 +01:00
proc-syms.c
…
proc-v6.S ARM: 7015/1: ARM errata: Possible cache data corruption with hit-under-miss enabled 2011-08-15 11:58:59 +01:00
proc-v7.S ARM: pm: avoid writing the auxillary control register for ARMv7 2011-08-28 10:39:54 +01:00
proc-xsc3.S ARM: pm: CPU specific code should not overwrite r1 (v:p offset) 2011-08-28 10:39:53 +01:00
proc-xscale.S ARM: Fix build errors caused by adding generic macros 2011-07-21 17:49:54 +01:00
tlb-fa.S Merge branch 'devel-stable' into for-next 2011-07-22 23:09:07 +01:00
tlb-v3.S ARM: mm: tlb-v3: Use the new processor struct macros 2011-07-07 15:31:11 +01:00
tlb-v4.S ARM: mm: tlb-v4: Use the new processor struct macros 2011-07-07 15:31:12 +01:00
tlb-v4wb.S ARM: mm: tlb-v4wb: Use the new processor struct macros 2011-07-07 15:31:12 +01:00
tlb-v4wbi.S ARM: mm: tlb-v4wbi: Use the new processor struct macros 2011-07-07 15:31:12 +01:00
tlb-v6.S Merge branch 'devel-stable' into for-next 2011-07-22 23:09:07 +01:00
tlb-v7.S Merge branch 'devel-stable' into for-next 2011-07-22 23:09:07 +01:00
vmregion.c ARM: DMA: top-down allocation in DMA coherent region 2011-02-23 17:24:11 +00:00
vmregion.h ARM: DMA coherent allocator: align remapped addresses 2010-07-27 10:43:48 +01:00