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ARM: cacheflush: use -ishst dsb variant for ensuring flush completion

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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@arm.com>
This commit is contained in:
Will Deacon 2013-06-12 10:03:30 +01:00
parent 9781aa8adb
commit 6af396a6b6
1 changed files with 1 additions and 1 deletions
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2
arch/arm/include/asm/cacheflush.h
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@ -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.
*/
dsb();
dsb(ishst);
}
static inline void flush_cache_vunmap(unsigned long start, unsigned long end)