diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-12-08 13:45:45 -0500 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-12-09 02:10:12 -0500 |
| commit | e090aa80321b64c3b793f3b047e31ecf1af9538d (patch) | |
| tree | 30ddd96363a873ae8203f42a063a4d2d1cd63d6b | |
| parent | bcd6acd51f3d4d1ada201e9bc5c40a31d6d80c71 (diff) | |
powerpc: Fix usage of 64-bit instruction in 32-bit altivec code
e821ea70f3b4873b50056a1e0f74befed1014c09 introduced a bug by copying
some 64-bit originated code as-is to be used by both 32 and 64-bit
but this code contains a 64-bit ony "cmpdi" instruction.
This changes it to cmpwi, which is fine since VRSAVE can only contains
a 32-bit value anyway.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@kernel.org>
| -rw-r--r-- | arch/powerpc/kernel/vector.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/vector.S b/arch/powerpc/kernel/vector.S index 67b6916f0e94..fe460482fa68 100644 --- a/arch/powerpc/kernel/vector.S +++ b/arch/powerpc/kernel/vector.S | |||
| @@ -58,7 +58,7 @@ _GLOBAL(load_up_altivec) | |||
| 58 | * all 1's | 58 | * all 1's |
| 59 | */ | 59 | */ |
| 60 | mfspr r4,SPRN_VRSAVE | 60 | mfspr r4,SPRN_VRSAVE |
| 61 | cmpdi 0,r4,0 | 61 | cmpwi 0,r4,0 |
| 62 | bne+ 1f | 62 | bne+ 1f |
| 63 | li r4,-1 | 63 | li r4,-1 |
| 64 | mtspr SPRN_VRSAVE,r4 | 64 | mtspr SPRN_VRSAVE,r4 |