diff options
| author | Jack Steiner <steiner@sgi.com> | 2009-12-16 03:48:11 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 18:20:15 +0300 |
| commit | 67bf04a5c2574e9495f660f418f6df776821d578 (patch) | |
| tree | ff28ab4983b007136da88786c8966ea1598841a0 /drivers/cpuidle | |
| parent | e006043a4d2da52bba9fd9cb7e5a22e2951ff69b (diff) | |
| download | linux-67bf04a5c2574e9495f660f418f6df776821d578.tar.xz | |
gru: fix prefetch and speculation bugs
Fix several bugs related to prefetch, ordering & speculation:
- GRU cch_allocate() instruction causes cacheable memory
to be created. Add a barriers to prevent speculation
from prefetching data before it exists.
- Add memory barriers before cache-flush instructions to ensure
that previously stored data is included in the line flushed to memory.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/cpuidle')
0 files changed, 0 insertions, 0 deletions