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| author | Andi Kleen <ak@linux.intel.com> | 2012-06-05 17:56:50 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-06-06 17:23:27 +0200 |
| commit | 1ff4d58a192aea7f245981e2579765f961f6eb9c (patch) | |
| tree | d925939440c4c36bf6f46d5aeb4eb609c4f3038f | |
| parent | 1c2ac3fde3e35279958e7b0408e2dcf866465301 (diff) | |
| download | linux-0-day-1ff4d58a192aea7f245981e2579765f961f6eb9c.tar.gz linux-0-day-1ff4d58a192aea7f245981e2579765f961f6eb9c.tar.xz | |
x86: Add rdpmcl()
Add a version of rdpmc() that directly reads into a u64
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1338944211-28275-4-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/include/asm/msr.h | 2 | ||||
| -rw-r--r-- | arch/x86/include/asm/paravirt.h | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h index 084ef95274cd7..e489c1475be99 100644 --- a/arch/x86/include/asm/msr.h +++ b/arch/x86/include/asm/msr.h @@ -237,6 +237,8 @@ do { \ (high) = (u32)(_l >> 32); \ } while (0) +#define rdpmcl(counter, val) ((val) = native_read_pmc(counter)) + #define rdtscp(low, high, aux) \ do { \ unsigned long long _val = native_read_tscp(&(aux)); \ diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h index 6cbbabf52707f..14ce05dfe04e7 100644 --- a/arch/x86/include/asm/paravirt.h +++ b/arch/x86/include/asm/paravirt.h @@ -252,6 +252,8 @@ do { \ high = _l >> 32; \ } while (0) +#define rdpmcl(counter, val) ((val) = paravirt_read_pmc(counter)) + static inline unsigned long long paravirt_rdtscp(unsigned int *aux) { return PVOP_CALL1(u64, pv_cpu_ops.read_tscp, aux); |