diff options
| author | Anton Blanchard <anton@samba.org> | 2012-08-07 17:50:46 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-08-24 20:26:09 +1000 |
| commit | dad477ccd65f05bf3b5a874e0118bf4156a1fcbb (patch) | |
| tree | 978d9d93d53da3927a68e0bb7ebdad3f99f5299d /arch/powerpc | |
| parent | 7256a5d2da56f2ea8ad49e8dbe9e2984f0899b42 (diff) | |
powerpc: POWER7 copy_to_user/copy_from_user patch applied twice
"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>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/lib/copyuser_power7.S | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/arch/powerpc/lib/copyuser_power7.S b/arch/powerpc/lib/copyuser_power7.S index f9ede7c6606..4a4a46fbad0 100644 --- a/arch/powerpc/lib/copyuser_power7.S +++ b/arch/powerpc/lib/copyuser_power7.S @@ -326,37 +326,6 @@ err1; stb r0,0(r3) 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 - dcbt r0,r7,0b01010 - dcbtst r0,r9,0b01000 - dcbtst r0,r10,0b01010 - eieio - dcbt r0,r8,0b01010 /* GO */ -.machine pop - beq .Lunwind_stack_nonvmx_copy /* |