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| author |   David S. Miller <davem@davemloft.net> | 2014-05-17 11:28:05 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-05-17 11:28:05 -0700 |
| commit | 5aa4ecfd0ddb1e6dcd1c886e6c49677550f581aa (patch) | |
| tree | 00a75bbbc63b83340836ecefbd4b03d4ec840a6f /arch/sparc/lib/NG2memcpy.S | |
| parent | sparc64: Fix huge TSB mapping on pre-UltraSPARC-III cpus. (diff) | |
| download | linux-dev-5aa4ecfd0ddb1e6dcd1c886e6c49677550f581aa.tar.xz linux-dev-5aa4ecfd0ddb1e6dcd1c886e6c49677550f581aa.zip | |
sparc64: Add membar to Niagara2 memcpy code.
This is the prevent previous stores from overlapping the block stores
done by the memcpy loop.
Based upon a glibc patch by Jose E. Marchesi
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/lib/NG2memcpy.S')
| -rw-r--r-- | arch/sparc/lib/NG2memcpy.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/sparc/lib/NG2memcpy.S b/arch/sparc/lib/NG2memcpy.S index 2c20ad63ddbf..30eee6e8a81b 100644 --- a/arch/sparc/lib/NG2memcpy.S +++ b/arch/sparc/lib/NG2memcpy.S @@ -236,6 +236,7 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */ */ VISEntryHalf + membar #Sync alignaddr %o1, %g0, %g0 add %o1, (64 - 1), %o4 |