Messages in this thread Patch in this message | | | From | Andi Kleen <> | Subject | [PATCH 4/5] x86: Add rdpmcl() | Date | Tue, 5 Jun 2012 17:56:50 -0700 |
| |
From: Andi Kleen <ak@linux.intel.com>
Add a version of rdpmc() that directly reads into a u64
Signed-off-by: Andi Kleen <ak@linux.intel.com> --- arch/x86/include/asm/msr.h | 2 ++ 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 084ef95..e489c14 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 6cbbabf..14ce05d 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); -- 1.7.7.6
| |