diff options
| author | David S. Miller <davem@davemloft.net> | 2014-05-17 11:28:05 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-08-14 09:38:26 +0800 |
| commit | a8973758f3bd08a2d102ee96ec28b2fe9242d77b (patch) | |
| tree | 456917dfc0c59587fb787dba9845ca2565b83dc6 /arch/sparc | |
| parent | c184f95bbe3e613461c17ded62206c921a6e64b7 (diff) | |
sparc64: Add membar to Niagara2 memcpy code.
[ Upstream commit 5aa4ecfd0ddb1e6dcd1c886e6c49677550f581aa ]
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/sparc')
| -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 |