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| author | Tony Lindgren <tony@atomide.com> | 2012-09-05 21:06:08 +0400 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2012-09-05 21:06:08 +0400 |
| commit | 580a7ce8fb5012c0c0afe592bdafd482a3679911 (patch) | |
| tree | 3fb6b00359a63d8d2e33005599046c105956d314 /arch/powerpc/lib/copyuser_power7.S | |
| parent | a17fb8f520c3c662686aa54a86773f354002c7d3 (diff) | |
| parent | e534e871a94ba2e3bfdf0edd3685eb805fc960d8 (diff) | |
| download | linux-580a7ce8fb5012c0c0afe592bdafd482a3679911.tar.xz | |
Merge branch 'fixes-wakeupgen' into fixes
Diffstat (limited to 'arch/powerpc/lib/copyuser_power7.S')
| -rw-r--r-- | arch/powerpc/lib/copyuser_power7.S | 35 |
1 files changed, 2 insertions, 33 deletions
diff --git a/arch/powerpc/lib/copyuser_power7.S b/arch/powerpc/lib/copyuser_power7.S index f9ede7c6606e..0d24ff15f5f6 100644 --- a/arch/powerpc/lib/copyuser_power7.S +++ b/arch/powerpc/lib/copyuser_power7.S @@ -288,7 +288,7 @@ err1; stb r0,0(r3) std r0,16(r1) stdu r1,-STACKFRAMESIZE(r1) bl .enter_vmx_usercopy - cmpwi r3,0 + cmpwi cr1,r3,0 ld r0,STACKFRAMESIZE+16(r1) ld r3,STACKFRAMESIZE+48(r1) ld r4,STACKFRAMESIZE+56(r1) @@ -326,38 +326,7 @@ 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 + beq cr1,.Lunwind_stack_nonvmx_copy /* * If source and destination are not relatively aligned we use a |