sparc64: Add membar to Niagara2 memcpy code. · 5aa4ecfd0d - Gogs: Go Git Service GfA electronic

sparc64: Add membar to Niagara2 memcpy code.

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>

David S. Miller 11 years ago

parent

b18eb2d779

commit

5aa4ecfd0d

1 changed files with 1 additions and 0 deletions

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arch/sparc/lib/NG2memcpy.S
							 
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				@@ -236,6 +236,7 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len */
			
				 	 */
			
				 	VISEntryHalf
			
				+	membar		#Sync
			
				 	alignaddr	%o1, %g0, %g0
			
				 	add		%o1, (64 - 1), %o4