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 09:24:16 +0800 |
| commit | 921df8ed4c86310d215b62579703cc89741d6361 (patch) | |
| tree | 928581f605e08aef71da58ac4433c802bdbd81a3 /arch/sparc | |
| parent | 720910a60cc2509160ec043459081f274c12ccce (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 |