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#ifndef _PERF_PERF_H
#define _PERF_PERF_H
/*
* prctl(PR_TASK_PERF_COUNTERS_DISABLE) will (cheaply) disable all
* counters in the current task.
*/
#define PR_TASK_PERF_COUNTERS_DISABLE 31
#define PR_TASK_PERF_COUNTERS_ENABLE 32
#ifndef NSEC_PER_SEC
# define NSEC_PER_SEC 1000000000ULL
#endif
static inline unsigned long long rdclock(void)
{
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
}
/*
* Pick up some kernel type conventions:
*/
#define __user
#define asmlinkage
#if defined(__x86_64__) || defined(__i386__)
#include "../../arch/x86/include/asm/unistd.h"
#define rmb() asm volatile("lfence" ::: "memory")
#define cpu_relax() asm volatile("rep; nop" ::: "memory");
#endif
#ifdef __powerpc__
#include "../../arch/powerpc/include/asm/unistd.h"
#define rmb() asm volatile ("sync" ::: "memory")
#define cpu_relax() asm volatile ("" ::: "memory");
#endif
#define unlikely(x) __builtin_expect(!!(x), 0)
#define min(x, y) ({ \
typeof(x) _min1 = (x); \
typeof(y) _min2 = (y); \
(void) (&_min1 == &_min2); \
_min1 < _min2 ? _min1 : _min2; })
static inline int
sys_perf_counter_open(struct perf_counter_hw_event *hw_event_uptr,
pid_t pid, int cpu, int group_fd,
unsigned long flags)
{
return syscall(__NR_perf_counter_open, hw_event_uptr, pid, cpu,
group_fd, flags);
}
#define MAX_COUNTERS 64
#define MAX_NR_CPUS 256
#define EID(type, id) (((__u64)(type) << PERF_COUNTER_TYPE_SHIFT) | (id))
#endif
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