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| author | David Daney <ddaney@caviumnetworks.com> | 2009-06-29 18:54:15 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2009-07-03 16:45:25 +0200 |
| commit | b53d4d1f8d522342e66f79b8b49a19835071fed4 (patch) | |
| tree | 22702559c82c8b57f960284352d46e13063b69e3 /arch/mips | |
| parent | MIPS: Update VR41xx GPIO driver to use gpiolib (diff) | |
| download | linux-b53d4d1f8d522342e66f79b8b49a19835071fed4.tar.xz linux-b53d4d1f8d522342e66f79b8b49a19835071fed4.zip | |
MIPS: Define __arch_swab64 for all mips r2 cpus
Some CPUs implement mipsr2, but because they are a super-set of mips64r2 do
not define CONFIG_CPU_MIPS64_R2. Cavium OCTEON falls into this category.
We would still like to use the optimized implementation, so since we have
already checked for CONFIG_CPU_MIPSR2, checking for CONFIG_64BIT instead of
CONFIG_CPU_MIPS64_R2 is sufficient.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/include/asm/swab.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/mips/include/asm/swab.h b/arch/mips/include/asm/swab.h index 99993c0d6c12..97c2f81b4b43 100644 --- a/arch/mips/include/asm/swab.h +++ b/arch/mips/include/asm/swab.h @@ -38,7 +38,11 @@ static inline __attribute_const__ __u32 __arch_swab32(__u32 x) } #define __arch_swab32 __arch_swab32 -#ifdef CONFIG_CPU_MIPS64_R2 +/* + * Having already checked for CONFIG_CPU_MIPSR2, enable the + * optimized version for 64-bit kernel on r2 CPUs. + */ +#ifdef CONFIG_64BIT static inline __attribute_const__ __u64 __arch_swab64(__u64 x) { __asm__( @@ -50,6 +54,6 @@ static inline __attribute_const__ __u64 __arch_swab64(__u64 x) return x; } #define __arch_swab64 __arch_swab64 -#endif /* CONFIG_CPU_MIPS64_R2 */ +#endif /* CONFIG_64BIT */ #endif /* CONFIG_CPU_MIPSR2 */ #endif /* _ASM_SWAB_H */ |