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| author | James Hogan <james.hogan@imgtec.com> | 2015-01-30 15:09:39 +0300 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2015-03-27 21:42:48 +0300 |
| commit | 1f3a2c6e229ccb8df8115b04d16ad4832767cf3a (patch) | |
| tree | 9af45f0131586543307d1d116002679e44cabec1 /arch | |
| parent | 466aec5f292be469e15b3dc3d17b731dab93727c (diff) | |
| download | linux-1f3a2c6e229ccb8df8115b04d16ad4832767cf3a.tar.xz | |
MIPS: MSA: Fix big-endian FPR_IDX implementation
The maximum word size is 64-bits since MSA state is saved using st.d
which stores two 64-bit words, therefore reimplement FPR_IDX using xor,
and only within each 64-bit word.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9169/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/include/asm/processor.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h index b5dcbee01fd7..9b3b48e21c22 100644 --- a/arch/mips/include/asm/processor.h +++ b/arch/mips/include/asm/processor.h @@ -105,7 +105,7 @@ union fpureg { #ifdef CONFIG_CPU_LITTLE_ENDIAN # define FPR_IDX(width, idx) (idx) #else -# define FPR_IDX(width, idx) ((FPU_REG_WIDTH / (width)) - 1 - (idx)) +# define FPR_IDX(width, idx) ((idx) ^ ((64 / (width)) - 1)) #endif #define BUILD_FPR_ACCESS(width) \ |