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| author | Chen Jie <chenj@lemote.com> | 2014-08-15 08:56:58 (GMT) |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-09-22 11:35:46 (GMT) |
| commit | 3c09bae43ba92a07a6a7b7d42360deb32d289cc0 (patch) | |
| tree | 7648425d5b309e76a60612ca46ba4b88bfdf729b /arch/mips/include/asm | |
| parent | 0f33be009b89d2268e94194dc4fd01a7851b6d51 (diff) | |
| download | linux-3c09bae43ba92a07a6a7b7d42360deb32d289cc0.tar.xz | |
MIPS: Use WSBH/DSBH/DSHD on Loongson 3A
Signed-off-by: chenj <chenj@lemote.com>
Cc: linux-mips@linux-mips.org
Cc: chenhc@lemote.com
Patchwork: https://patchwork.linux-mips.org/patch/7542/
Patchwork: https://patchwork.linux-mips.org/patch/7550/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm')
| -rw-r--r-- | arch/mips/include/asm/cpu-features.h | 10 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h | 1 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h | 2 |
3 files changed, 13 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index e079598..3325f3e 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -231,6 +231,16 @@ #define cpu_has_clo_clz cpu_has_mips_r #endif +/* + * MIPS32 R2, MIPS64 R2, Loongson 3A and Octeon have WSBH. + * MIPS64 R2, Loongson 3A and Octeon have WSBH, DSBH and DSHD. + * This indicates the availability of WSBH and in case of 64 bit CPUs also + * DSBH and DSHD. + */ +#ifndef cpu_has_wsbh +#define cpu_has_wsbh cpu_has_mips_r2 +#endif + #ifndef cpu_has_dsp #define cpu_has_dsp (cpu_data[0].ases & MIPS_ASE_DSP) #endif diff --git a/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h b/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h index cf80228..fa1f3cf 100644 --- a/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h +++ b/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h @@ -57,6 +57,7 @@ #define cpu_has_vint 0 #define cpu_has_veic 0 #define cpu_hwrena_impl_bits 0xc0000000 +#define cpu_has_wsbh 1 #define cpu_has_rixi (cpu_data[0].cputype != CPU_CAVIUM_OCTEON) diff --git a/arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h b/arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h index c0f3ef4..7d28f95 100644 --- a/arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h +++ b/arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h @@ -59,4 +59,6 @@ #define cpu_has_watch 1 #define cpu_has_local_ebase 0 +#define cpu_has_wsbh IS_ENABLED(CONFIG_CPU_LOONGSON3) + #endif /* __ASM_MACH_LOONGSON_CPU_FEATURE_OVERRIDES_H */ |