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#ifndef _ASM_X86_PERF_COUNTER_H
#define _ASM_X86_PERF_COUNTER_H
/*
* Performance counter hw details:
*/
#define X86_PMC_MAX_GENERIC 8
#define X86_PMC_MAX_FIXED 3
#define MSR_ARCH_PERFMON_PERFCTR0 0xc1
#define MSR_ARCH_PERFMON_PERFCTR1 0xc2
#define MSR_ARCH_PERFMON_EVENTSEL0 0x186
#define MSR_ARCH_PERFMON_EVENTSEL1 0x187
#define ARCH_PERFMON_EVENTSEL0_ENABLE (1 << 22)
#define ARCH_PERFMON_EVENTSEL_INT (1 << 20)
#define ARCH_PERFMON_EVENTSEL_OS (1 << 17)
#define ARCH_PERFMON_EVENTSEL_USR (1 << 16)
#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL 0x3c
#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK (0x00 << 8)
#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX 0
#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT \
(1 << (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX))
#define ARCH_PERFMON_BRANCH_MISSES_RETIRED 6
/*
* Intel "Architectural Performance Monitoring" CPUID
* detection/enumeration details:
*/
union cpuid10_eax {
struct {
unsigned int version_id:8;
unsigned int num_counters:8;
unsigned int bit_width:8;
unsigned int mask_length:8;
} split;
unsigned int full;
};
#ifdef CONFIG_PERF_COUNTERS
extern void init_hw_perf_counters(void);
extern void perf_counters_lapic_init(int nmi);
#else
static inline void init_hw_perf_counters(void) { }
static inline void perf_counters_lapic_init(int nmi) { }
#endif
#endif /* _ASM_X86_PERF_COUNTER_H */
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