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author | Ingo Molnar <mingo@elte.hu> | 2009-10-17 09:58:25 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-10-17 09:58:25 +0200 |
commit | bb3c3e807140816b5f5fd4840473ee52a916ad4f (patch) | |
tree | 9e8a69d266a7df86ca16177eefffab4b4e910753 /arch/arm/mm/cache-v7.S | |
parent | 595c36490deb49381dc51231a3d5e6b66786ed27 (diff) | |
parent | 012abeea669ea49636cf952d13298bb68654146a (diff) | |
download | talos-op-linux-bb3c3e807140816b5f5fd4840473ee52a916ad4f.tar.gz talos-op-linux-bb3c3e807140816b5f5fd4840473ee52a916ad4f.zip |
Merge commit 'v2.6.32-rc5' into perf/probes
Conflicts:
kernel/trace/trace_event_profile.c
Merge reason: update to -rc5 and resolve conflict.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/mm/cache-v7.S')
-rw-r--r-- | arch/arm/mm/cache-v7.S | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S index bda0ec31a4e2..e1bd9759617f 100644 --- a/arch/arm/mm/cache-v7.S +++ b/arch/arm/mm/cache-v7.S @@ -13,6 +13,7 @@ #include <linux/linkage.h> #include <linux/init.h> #include <asm/assembler.h> +#include <asm/unwind.h> #include "proc-macros.S" @@ -153,13 +154,16 @@ ENTRY(v7_coherent_kern_range) * - the Icache does not read data from the write buffer */ ENTRY(v7_coherent_user_range) + UNWIND(.fnstart ) dcache_line_size r2, r3 sub r3, r2, #1 bic r0, r0, r3 -1: mcr p15, 0, r0, c7, c11, 1 @ clean D line to the point of unification +1: + USER( mcr p15, 0, r0, c7, c11, 1 ) @ clean D line to the point of unification dsb - mcr p15, 0, r0, c7, c5, 1 @ invalidate I line + USER( mcr p15, 0, r0, c7, c5, 1 ) @ invalidate I line add r0, r0, r2 +2: cmp r0, r1 blo 1b mov r0, #0 @@ -167,6 +171,17 @@ ENTRY(v7_coherent_user_range) dsb isb mov pc, lr + +/* + * Fault handling for the cache operation above. If the virtual address in r0 + * isn't mapped, just try the next page. + */ +9001: + mov r0, r0, lsr #12 + mov r0, r0, lsl #12 + add r0, r0, #4096 + b 2b + UNWIND(.fnend ) ENDPROC(v7_coherent_kern_range) ENDPROC(v7_coherent_user_range) |