| #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 |
| |
| #define rdclock() \ |
| ({ \ |
| struct timespec ts; \ |
| \ |
| clock_gettime(CLOCK_MONOTONIC, &ts); \ |
| ts.tv_sec * 1000000000ULL + ts.tv_nsec; \ |
| }) |
| |
| /* |
| * Pick up some kernel type conventions: |
| */ |
| #define __user |
| #define asmlinkage |
| |
| #ifdef __x86_64__ |
| #define __NR_perf_counter_open 298 |
| #define rmb() asm volatile("lfence" ::: "memory") |
| #define cpu_relax() asm volatile("rep; nop" ::: "memory"); |
| #endif |
| |
| #ifdef __i386__ |
| #define __NR_perf_counter_open 336 |
| #define rmb() asm volatile("lfence" ::: "memory") |
| #define cpu_relax() asm volatile("rep; nop" ::: "memory"); |
| #endif |
| |
| #ifdef __powerpc__ |
| #define __NR_perf_counter_open 319 |
| #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 |