diff options
| author | Anton Blanchard <anton@samba.org> | 2012-08-07 17:51:41 (GMT) |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-08-24 10:26:09 (GMT) |
| commit | 2fae7cdb60240e2e2d9b378afbf6d9fcce8a3890 (patch) | |
| tree | b866b45dcd53a21646ab1bc10148988c158b21f9 /arch/powerpc/lib/memcpy_power7.S | |
| parent | dad477ccd65f05bf3b5a874e0118bf4156a1fcbb (diff) | |
| download | linux-2fae7cdb60240e2e2d9b378afbf6d9fcce8a3890.tar.xz | |
powerpc: Fix VMX in interrupt check in POWER7 copy loops
The enhanced prefetch hint patches corrupt the condition register
that was used to check if we are in interrupt. Fix this by using cr1.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/lib/memcpy_power7.S')
| -rw-r--r-- | arch/powerpc/lib/memcpy_power7.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/lib/memcpy_power7.S b/arch/powerpc/lib/memcpy_power7.S index 0efdc51..7ba6c96 100644 --- a/arch/powerpc/lib/memcpy_power7.S +++ b/arch/powerpc/lib/memcpy_power7.S @@ -222,7 +222,7 @@ _GLOBAL(memcpy_power7) std r0,16(r1) stdu r1,-STACKFRAMESIZE(r1) bl .enter_vmx_copy - cmpwi r3,0 + cmpwi cr1,r3,0 ld r0,STACKFRAMESIZE+16(r1) ld r3,STACKFRAMESIZE+48(r1) ld r4,STACKFRAMESIZE+56(r1) @@ -260,7 +260,7 @@ _GLOBAL(memcpy_power7) 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 |