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| author | Johannes Berg <johannes.berg@intel.com> | 2014-02-20 11:55:12 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-02-20 11:55:12 +0100 |
| commit | bf5f48339a019c9b4b42284c3f45d58942cbda27 (patch) | |
| tree | 79976135166ffbdaf4ccb91bcadb17ddb551f060 /arch/powerpc/include/asm/cache.h | |
| parent | d85dad75566674ca8012715ac00a84ced3697972 (diff) | |
| parent | 35582ad9d342025653aaf28ed321bf5352488d7f (diff) | |
Merge remote-tracking branch 'wireless-next/master' into mac80211-next
Diffstat (limited to 'arch/powerpc/include/asm/cache.h')
| -rw-r--r-- | arch/powerpc/include/asm/cache.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h index 9e495c9a6a8..ed0afc1e44a 100644 --- a/arch/powerpc/include/asm/cache.h +++ b/arch/powerpc/include/asm/cache.h @@ -41,8 +41,20 @@ struct ppc64_caches { extern struct ppc64_caches ppc64_caches; #endif /* __powerpc64__ && ! __ASSEMBLY__ */ -#if !defined(__ASSEMBLY__) +#if defined(__ASSEMBLY__) +/* + * For a snooping icache, we still need a dummy icbi to purge all the + * prefetched instructions from the ifetch buffers. We also need a sync + * before the icbi to order the the actual stores to memory that might + * have modified instructions with the icbi. + */ +#define PURGE_PREFETCHED_INS \ + sync; \ + icbi 0,r3; \ + sync; \ + isync +#else #define __read_mostly __attribute__((__section__(".data..read_mostly"))) #ifdef CONFIG_6xx |