powerpc: POWER7 copy_to_user/copy_from_user patch applied twice
authorAnton Blanchard <anton@samba.org>
Tue, 7 Aug 2012 17:50:46 +0000 (17:50 +0000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Fri, 24 Aug 2012 10:26:09 +0000 (20:26 +1000)
"powerpc: Use enhanced touch instructions in POWER7
copy_to_user/copy_from_user" was applied twice. Remove one.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/lib/copyuser_power7.S

index f9ede7c6606e54d36f4b54fddc5b3101085ee5ef..4a4a46fbad0ef3be51a96f63a8e09854af66cca5 100644 (file)
@@ -316,37 +316,6 @@ err1;      stb     r0,0(r3)
        lis     r8,0x8000       /* GO=1 */
        clrldi  r8,r8,32
 
-.machine push
-.machine "power4"
-       dcbt    r0,r6,0b01000
-       dcbt    r0,r7,0b01010
-       dcbtst  r0,r9,0b01000
-       dcbtst  r0,r10,0b01010
-       eieio
-       dcbt    r0,r8,0b01010   /* GO */
-.machine pop
-
-       /*
-        * We prefetch both the source and destination using enhanced touch
-        * instructions. We use a stream ID of 0 for the load side and
-        * 1 for the store side.
-        */
-       clrrdi  r6,r4,7
-       clrrdi  r9,r3,7
-       ori     r9,r9,1         /* stream=1 */
-
-       srdi    r7,r5,7         /* length in cachelines, capped at 0x3FF */
-       cmpldi  cr1,r7,0x3FF
-       ble     cr1,1f
-       li      r7,0x3FF
-1:     lis     r0,0x0E00       /* depth=7 */
-       sldi    r7,r7,7
-       or      r7,r7,r0
-       ori     r10,r7,1        /* stream=1 */
-
-       lis     r8,0x8000       /* GO=1 */
-       clrldi  r8,r8,32
-
 .machine push
 .machine "power4"
        dcbt    r0,r6,0b01000