Messages in this thread Patch in this message | | | From | Luis Henriques <> | Subject | [PATCH 3.11 122/137] sparc64: Add membar to Niagara2 memcpy code. | Date | Mon, 18 Aug 2014 10:33:03 +0100 |
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3.11.10.15 -stable review patch. If anyone has any objections, please let me know.
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From: "David S. Miller" <davem@davemloft.net>
commit 5aa4ecfd0ddb1e6dcd1c886e6c49677550f581aa upstream.
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: Luis Henriques <luis.henriques@canonical.com> --- arch/sparc/lib/NG2memcpy.S | 1 + 1 file changed, 1 insertion(+)
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 -- 1.9.1
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