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| author | Adrian Bunk <bunk@stusta.de> | 2007-02-20 01:07:13 +0100 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2007-02-20 14:29:37 -0500 |
| commit | b44755cfaa72e7ed3d831a946bb4e7dfe7548966 (patch) | |
| tree | 251cf0ab5aa9c39bab3f0981ab96021b5523bee3 /include/asm-x86_64 | |
| parent | 48ac3271e52d23ee987da93f80d20f6bec8e6717 (diff) | |
| download | op-kernel-dev-b44755cfaa72e7ed3d831a946bb4e7dfe7548966.zip op-kernel-dev-b44755cfaa72e7ed3d831a946bb4e7dfe7548966.tar.gz | |
{rd,wr}msr_on_cpu SMP=n optimization
Let's save a few bytes in the CONFIG_SMP=n case.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'include/asm-x86_64')
| -rw-r--r-- | include/asm-x86_64/msr.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/asm-x86_64/msr.h b/include/asm-x86_64/msr.h index 995a2b5..902f9a5 100644 --- a/include/asm-x86_64/msr.h +++ b/include/asm-x86_64/msr.h @@ -160,8 +160,19 @@ static inline unsigned int cpuid_edx(unsigned int op) #define MSR_IA32_UCODE_WRITE 0x79 #define MSR_IA32_UCODE_REV 0x8b +#ifdef CONFIG_SMP void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h); void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h); +#else /* CONFIG_SMP */ +static inline void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) +{ + rdmsr(msr_no, *l, *h); +} +static inline void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) +{ + wrmsr(msr_no, l, h); +} +#endif /* CONFIG_SMP */ #endif |
