diff options
| author | David S. Miller <davem@davemloft.net> | 2014-05-17 11:28:05 -0700 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2014-08-26 14:11:58 +0200 |
| commit | 71adc6cba6c1107fd60809af883f440b1d0923d1 (patch) | |
| tree | a7312fc9b43bf84378a48bf55a2e7098f7f03cbe /arch/sparc | |
| parent | ffd19429051807486c032f22a51bb922ec499d02 (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: Jiri Slaby <jslaby@suse.cz>
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 |