Commit | Line | Data |
---|---|---|
6eda5838 TG |
1 | #ifndef _PERF_PERF_H |
2 | #define _PERF_PERF_H | |
3 | ||
1a482f38 PZ |
4 | #if defined(__x86_64__) || defined(__i386__) |
5 | #include "../../arch/x86/include/asm/unistd.h" | |
6 | #define rmb() asm volatile("lfence" ::: "memory") | |
7 | #define cpu_relax() asm volatile("rep; nop" ::: "memory"); | |
8 | #endif | |
9 | ||
10 | #ifdef __powerpc__ | |
11 | #include "../../arch/powerpc/include/asm/unistd.h" | |
12 | #define rmb() asm volatile ("sync" ::: "memory") | |
13 | #define cpu_relax() asm volatile ("" ::: "memory"); | |
14 | #endif | |
15 | ||
16 | #include <time.h> | |
17 | #include <unistd.h> | |
18 | #include <sys/types.h> | |
19 | #include <sys/syscall.h> | |
20 | ||
21 | #include "../../include/linux/perf_counter.h" | |
22 | ||
6eda5838 TG |
23 | /* |
24 | * prctl(PR_TASK_PERF_COUNTERS_DISABLE) will (cheaply) disable all | |
25 | * counters in the current task. | |
26 | */ | |
27 | #define PR_TASK_PERF_COUNTERS_DISABLE 31 | |
28 | #define PR_TASK_PERF_COUNTERS_ENABLE 32 | |
29 | ||
a92e7023 TG |
30 | #ifndef NSEC_PER_SEC |
31 | # define NSEC_PER_SEC 1000000000ULL | |
32 | #endif | |
33 | ||
34 | static inline unsigned long long rdclock(void) | |
35 | { | |
36 | struct timespec ts; | |
37 | ||
38 | clock_gettime(CLOCK_MONOTONIC, &ts); | |
39 | return ts.tv_sec * 1000000000ULL + ts.tv_nsec; | |
40 | } | |
6eda5838 TG |
41 | |
42 | /* | |
43 | * Pick up some kernel type conventions: | |
44 | */ | |
45 | #define __user | |
46 | #define asmlinkage | |
47 | ||
6eda5838 TG |
48 | #define unlikely(x) __builtin_expect(!!(x), 0) |
49 | #define min(x, y) ({ \ | |
50 | typeof(x) _min1 = (x); \ | |
51 | typeof(y) _min2 = (y); \ | |
52 | (void) (&_min1 == &_min2); \ | |
53 | _min1 < _min2 ? _min1 : _min2; }) | |
54 | ||
55 | static inline int | |
974802ea | 56 | sys_perf_counter_open(struct perf_counter_attr *attr, |
6eda5838 TG |
57 | pid_t pid, int cpu, int group_fd, |
58 | unsigned long flags) | |
59 | { | |
974802ea PZ |
60 | attr->size = sizeof(*attr); |
61 | return syscall(__NR_perf_counter_open, attr, pid, cpu, | |
6eda5838 TG |
62 | group_fd, flags); |
63 | } | |
64 | ||
85a9f920 IM |
65 | #define MAX_COUNTERS 256 |
66 | #define MAX_NR_CPUS 256 | |
6eda5838 | 67 | |
6eda5838 | 68 | #endif |