diff options
| author | Will Deacon <will.deacon@arm.com> | 2013-05-13 15:01:12 +0400 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2013-08-12 15:25:45 +0400 |
| commit | 6abdd491698a27f7df04a32ca12cc453810e4396 (patch) | |
| tree | 34f4aa721441439634e721fe0eeba614b076a889 /arch/arm/mm/proc-v7.S | |
| parent | 62cbbc42e0019aff6310259f275ae812463f8836 (diff) | |
| download | linux-6abdd491698a27f7df04a32ca12cc453810e4396.tar.xz | |
ARM: mm: use inner-shareable barriers for TLB and user cache operations
System-wide barriers aren't required for situations where we only need
to make visibility and ordering guarantees in the inner-shareable domain
(i.e. we are not dealing with devices or potentially incoherent CPUs).
This patch changes the v7 TLB operations, coherent_user_range and
dcache_clean_area functions to user inner-shareable barriers. For cache
maintenance, only the store access type is required to ensure completion.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm/mm/proc-v7.S')
| -rw-r--r-- | arch/arm/mm/proc-v7.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index 73398bcf9bd8..0b5462a941a6 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -83,7 +83,7 @@ ENTRY(cpu_v7_dcache_clean_area) add r0, r0, r2 subs r1, r1, r2 bhi 2b - dsb + dsb ishst mov pc, lr ENDPROC(cpu_v7_dcache_clean_area) |