| From foo@baz Thu Aug 7 22:33:35 PDT 2014 |
| From: "David S. Miller" <davem@davemloft.net> |
| Date: Sat, 17 May 2014 11:28:05 -0700 |
| Subject: sparc64: Add membar to Niagara2 memcpy code. |
| |
| From: "David S. Miller" <davem@davemloft.net> |
| |
| [ 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> |
| --- |
| arch/sparc/lib/NG2memcpy.S | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| --- 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 |
