[PATCH v3 12/12] ARM: cacheflush: use -ishst dsb variant for ensuring flush completion
will.deacon at arm.com
Tue Jul 23 07:09:24 EDT 2013
flush_cache_vmap contains a dsb to ensure that any cacheflushing
operations to flush out newly written ptes have completed.
This patch adds the -ishst option to the dsb, since that is all that is
required for completing cacheflushing in the inner-shareable domain.
Signed-off-by: Will Deacon <will.deacon at arm.com>
arch/arm/include/asm/cacheflush.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 17d0ae8..04d7326 100644
@@ -352,7 +352,7 @@ static inline void flush_cache_vmap(unsigned long start, unsigned long end)
* set_pte_at() called from vmap_pte_range() does not
* have a DSB after cleaning the cache line.
static inline void flush_cache_vunmap(unsigned long start, unsigned long end)
More information about the linux-arm-kernel