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6eda5838 TG |
1 | #ifndef _PERF_PERF_H |
2 | #define _PERF_PERF_H | |
3 | ||
11d1578f VW |
4 | #if defined(__i386__) |
5 | #include "../../arch/x86/include/asm/unistd.h" | |
6 | #define rmb() asm volatile("lock; addl $0,0(%%esp)" ::: "memory") | |
7 | #define cpu_relax() asm volatile("rep; nop" ::: "memory"); | |
8 | #endif | |
9 | ||
10 | #if defined(__x86_64__) | |
1a482f38 PZ |
11 | #include "../../arch/x86/include/asm/unistd.h" |
12 | #define rmb() asm volatile("lfence" ::: "memory") | |
13 | #define cpu_relax() asm volatile("rep; nop" ::: "memory"); | |
14 | #endif | |
15 | ||
16 | #ifdef __powerpc__ | |
17 | #include "../../arch/powerpc/include/asm/unistd.h" | |
18 | #define rmb() asm volatile ("sync" ::: "memory") | |
19 | #define cpu_relax() asm volatile ("" ::: "memory"); | |
20 | #endif | |
21 | ||
12310e9c MS |
22 | #ifdef __s390__ |
23 | #include "../../arch/s390/include/asm/unistd.h" | |
24 | #define rmb() asm volatile("bcr 15,0" ::: "memory") | |
25 | #define cpu_relax() asm volatile("" ::: "memory"); | |
26 | #endif | |
27 | ||
febe8345 PM |
28 | #ifdef __sh__ |
29 | #include "../../arch/sh/include/asm/unistd.h" | |
30 | #if defined(__SH4A__) || defined(__SH5__) | |
31 | # define rmb() asm volatile("synco" ::: "memory") | |
32 | #else | |
33 | # define rmb() asm volatile("" ::: "memory") | |
34 | #endif | |
35 | #define cpu_relax() asm volatile("" ::: "memory") | |
36 | #endif | |
37 | ||
2d4618dc KM |
38 | #ifdef __hppa__ |
39 | #include "../../arch/parisc/include/asm/unistd.h" | |
40 | #define rmb() asm volatile("" ::: "memory") | |
41 | #define cpu_relax() asm volatile("" ::: "memory"); | |
42 | #endif | |
43 | ||
825c9fb4 JA |
44 | #ifdef __sparc__ |
45 | #include "../../arch/sparc/include/asm/unistd.h" | |
46 | #define rmb() asm volatile("":::"memory") | |
47 | #define cpu_relax() asm volatile("":::"memory") | |
48 | #endif | |
49 | ||
fcd14b32 MC |
50 | #ifdef __alpha__ |
51 | #include "../../arch/alpha/include/asm/unistd.h" | |
52 | #define rmb() asm volatile("mb" ::: "memory") | |
53 | #define cpu_relax() asm volatile("" ::: "memory") | |
54 | #endif | |
55 | ||
11ada26c TL |
56 | #ifdef __ia64__ |
57 | #include "../../arch/ia64/include/asm/unistd.h" | |
58 | #define rmb() asm volatile ("mf" ::: "memory") | |
59 | #define cpu_relax() asm volatile ("hint @pause" ::: "memory") | |
60 | #endif | |
61 | ||
58e9f941 JI |
62 | #ifdef __arm__ |
63 | #include "../../arch/arm/include/asm/unistd.h" | |
64 | /* | |
65 | * Use the __kuser_memory_barrier helper in the CPU helper page. See | |
66 | * arch/arm/kernel/entry-armv.S in the kernel source for details. | |
67 | */ | |
68 | #define rmb() asm volatile("mov r0, #0xffff0fff; mov lr, pc;" \ | |
69 | "sub pc, r0, #95" ::: "r0", "lr", "cc", \ | |
70 | "memory") | |
71 | #define cpu_relax() asm volatile("":::"memory") | |
72 | #endif | |
73 | ||
1a482f38 PZ |
74 | #include <time.h> |
75 | #include <unistd.h> | |
76 | #include <sys/types.h> | |
77 | #include <sys/syscall.h> | |
78 | ||
cdd6c482 | 79 | #include "../../include/linux/perf_event.h" |
7c6a1c65 | 80 | #include "util/types.h" |
1a482f38 | 81 | |
6eda5838 | 82 | /* |
cdd6c482 | 83 | * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all |
6eda5838 TG |
84 | * counters in the current task. |
85 | */ | |
cdd6c482 IM |
86 | #define PR_TASK_PERF_EVENTS_DISABLE 31 |
87 | #define PR_TASK_PERF_EVENTS_ENABLE 32 | |
6eda5838 | 88 | |
a92e7023 TG |
89 | #ifndef NSEC_PER_SEC |
90 | # define NSEC_PER_SEC 1000000000ULL | |
91 | #endif | |
92 | ||
93 | static inline unsigned long long rdclock(void) | |
94 | { | |
95 | struct timespec ts; | |
96 | ||
97 | clock_gettime(CLOCK_MONOTONIC, &ts); | |
98 | return ts.tv_sec * 1000000000ULL + ts.tv_nsec; | |
99 | } | |
6eda5838 TG |
100 | |
101 | /* | |
102 | * Pick up some kernel type conventions: | |
103 | */ | |
104 | #define __user | |
105 | #define asmlinkage | |
106 | ||
f37a291c IM |
107 | #define __used __attribute__((__unused__)) |
108 | ||
6eda5838 TG |
109 | #define unlikely(x) __builtin_expect(!!(x), 0) |
110 | #define min(x, y) ({ \ | |
111 | typeof(x) _min1 = (x); \ | |
112 | typeof(y) _min2 = (y); \ | |
113 | (void) (&_min1 == &_min2); \ | |
114 | _min1 < _min2 ? _min1 : _min2; }) | |
115 | ||
116 | static inline int | |
cdd6c482 | 117 | sys_perf_event_open(struct perf_event_attr *attr, |
6eda5838 TG |
118 | pid_t pid, int cpu, int group_fd, |
119 | unsigned long flags) | |
120 | { | |
974802ea | 121 | attr->size = sizeof(*attr); |
cdd6c482 | 122 | return syscall(__NR_perf_event_open, attr, pid, cpu, |
6eda5838 TG |
123 | group_fd, flags); |
124 | } | |
125 | ||
85a9f920 IM |
126 | #define MAX_COUNTERS 256 |
127 | #define MAX_NR_CPUS 256 | |
6eda5838 | 128 | |
8cb76d99 FW |
129 | struct ip_callchain { |
130 | u64 nr; | |
131 | u64 ips[0]; | |
f5970550 PZ |
132 | }; |
133 | ||
6eda5838 | 134 | #endif |