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| author | Glauber de Oliveira Costa | 2008-01-30 13:31:07 +0100 |
|---|---|---|
| committer | Ingo Molnar | 2008-01-30 13:31:07 +0100 |
| commit | b8d1fae7dbde6a1227fa142acecb48dc3dd63817 (patch) | |
| tree | 1fdc67fe977cf6c351ed41d5fdaa46fa97aba776 /include/asm-x86/msr.h | |
| parent | x86: introduce native_read_tscp (diff) | |
| download | kernel-qcow2-linux-b8d1fae7dbde6a1227fa142acecb48dc3dd63817.tar.gz kernel-qcow2-linux-b8d1fae7dbde6a1227fa142acecb48dc3dd63817.tar.xz kernel-qcow2-linux-b8d1fae7dbde6a1227fa142acecb48dc3dd63817.zip | |
x86: change rdpmc interface
the rdpmc instruction gets a counter argument in rcx. However,
the i386 version was ignoring it. To make both x86_64 and i386 versions
the same, as well as to comply with the instruction semantics, this
parameter is added in the i386 version
Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86/msr.h')
| -rw-r--r-- | include/asm-x86/msr.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/asm-x86/msr.h b/include/asm-x86/msr.h index b6262e99fc8e..effb7319c0a5 100644 --- a/include/asm-x86/msr.h +++ b/include/asm-x86/msr.h @@ -94,10 +94,10 @@ static inline unsigned long long native_read_tsc(void) return val; } -static inline unsigned long long native_read_pmc(void) +static inline unsigned long long native_read_pmc(int counter) { unsigned long long val; - asm volatile("rdpmc" : "=A" (val)); + asm volatile("rdpmc" : "=A" (val) : "c" (counter)); return val; } @@ -154,7 +154,7 @@ static inline int wrmsr_safe(u32 __msr, u32 __low, u32 __high) #define rdpmc(counter,low,high) \ do { \ - u64 _l = native_read_pmc(); \ + u64 _l = native_read_pmc(counter); \ (low) = (u32)_l; \ (high) = (u32)(_l >> 32); \ } while(0) |