diff options
| author | Anton Blanchard <anton@samba.org> | 2013-09-23 12:04:37 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-10-11 16:48:26 +1100 |
| commit | e156bd8ad76939a9bcd66d85cf06f8cde1fb8030 (patch) | |
| tree | 4da0a3c2138309a8366036d1068567414d4a8c76 /arch/powerpc/include/asm/processor.h | |
| parent | 12f04f2be80dd8d9da24534828f3ab3189ca5af2 (diff) | |
| download | op-kernel-dev-e156bd8ad76939a9bcd66d85cf06f8cde1fb8030.zip op-kernel-dev-e156bd8ad76939a9bcd66d85cf06f8cde1fb8030.tar.gz | |
powerpc: Fix offset of FPRs in VSX registers in little endian builds
The FPRs overlap the high doublewords of the first 32 VSX registers.
Fix TS_FPROFFSET and TS_VSRLOWOFFSET so we access the correct fields
in little endian mode.
If VSX is disabled the FPRs are only one doubleword in length so
TS_FPROFFSET needs adjusting in little endian.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/processor.h')
| -rw-r--r-- | arch/powerpc/include/asm/processor.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index ce4de5a..82c6ee9 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -14,8 +14,18 @@ #ifdef CONFIG_VSX #define TS_FPRWIDTH 2 + +#ifdef __BIG_ENDIAN__ +#define TS_FPROFFSET 0 +#define TS_VSRLOWOFFSET 1 +#else +#define TS_FPROFFSET 1 +#define TS_VSRLOWOFFSET 0 +#endif + #else #define TS_FPRWIDTH 1 +#define TS_FPROFFSET 0 #endif #ifdef CONFIG_PPC64 @@ -142,8 +152,6 @@ typedef struct { unsigned long seg; } mm_segment_t; -#define TS_FPROFFSET 0 -#define TS_VSRLOWOFFSET 1 #define TS_FPR(i) fpr[i][TS_FPROFFSET] #define TS_TRANS_FPR(i) transact_fpr[i][TS_FPROFFSET] |
