blob: d3042a6ba03dad7ec58fddfaf6e1a95482c16110 [file] [log] [blame]
Thomas Gleixner6eda5832009-05-01 18:29:57 +02001#ifndef _PERF_PERF_H
2#define _PERF_PERF_H
3
Peter Zijlstra1a482f32009-05-23 18:28:58 +02004#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
Martin Schwidefsky12310e92009-06-22 12:08:22 +020016#ifdef __s390__
17#include "../../arch/s390/include/asm/unistd.h"
18#define rmb() asm volatile("bcr 15,0" ::: "memory")
19#define cpu_relax() asm volatile("" ::: "memory");
20#endif
21
Paul Mundtfebe8342009-06-25 14:41:57 +090022#ifdef __sh__
23#include "../../arch/sh/include/asm/unistd.h"
24#if defined(__SH4A__) || defined(__SH5__)
25# define rmb() asm volatile("synco" ::: "memory")
26#else
27# define rmb() asm volatile("" ::: "memory")
28#endif
29#define cpu_relax() asm volatile("" ::: "memory")
30#endif
31
Kyle McMartin2d4618d2009-06-23 21:38:49 -040032#ifdef __hppa__
33#include "../../arch/parisc/include/asm/unistd.h"
34#define rmb() asm volatile("" ::: "memory")
35#define cpu_relax() asm volatile("" ::: "memory");
36#endif
37
Peter Zijlstra1a482f32009-05-23 18:28:58 +020038#include <time.h>
39#include <unistd.h>
40#include <sys/types.h>
41#include <sys/syscall.h>
42
43#include "../../include/linux/perf_counter.h"
Peter Zijlstra7c6a1c62009-06-25 17:05:54 +020044#include "util/types.h"
Peter Zijlstra1a482f32009-05-23 18:28:58 +020045
Thomas Gleixner6eda5832009-05-01 18:29:57 +020046/*
47 * prctl(PR_TASK_PERF_COUNTERS_DISABLE) will (cheaply) disable all
48 * counters in the current task.
49 */
50#define PR_TASK_PERF_COUNTERS_DISABLE 31
51#define PR_TASK_PERF_COUNTERS_ENABLE 32
52
Thomas Gleixnera92e702372009-05-01 18:39:47 +020053#ifndef NSEC_PER_SEC
54# define NSEC_PER_SEC 1000000000ULL
55#endif
56
57static inline unsigned long long rdclock(void)
58{
59 struct timespec ts;
60
61 clock_gettime(CLOCK_MONOTONIC, &ts);
62 return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
63}
Thomas Gleixner6eda5832009-05-01 18:29:57 +020064
65/*
66 * Pick up some kernel type conventions:
67 */
68#define __user
69#define asmlinkage
70
Thomas Gleixner6eda5832009-05-01 18:29:57 +020071#define unlikely(x) __builtin_expect(!!(x), 0)
72#define min(x, y) ({ \
73 typeof(x) _min1 = (x); \
74 typeof(y) _min2 = (y); \
75 (void) (&_min1 == &_min2); \
76 _min1 < _min2 ? _min1 : _min2; })
77
78static inline int
Peter Zijlstra974802e2009-06-12 12:46:55 +020079sys_perf_counter_open(struct perf_counter_attr *attr,
Thomas Gleixner6eda5832009-05-01 18:29:57 +020080 pid_t pid, int cpu, int group_fd,
81 unsigned long flags)
82{
Peter Zijlstra974802e2009-06-12 12:46:55 +020083 attr->size = sizeof(*attr);
84 return syscall(__NR_perf_counter_open, attr, pid, cpu,
Thomas Gleixner6eda5832009-05-01 18:29:57 +020085 group_fd, flags);
86}
87
Ingo Molnar85a9f922009-05-25 09:59:50 +020088#define MAX_COUNTERS 256
89#define MAX_NR_CPUS 256
Thomas Gleixner6eda5832009-05-01 18:29:57 +020090
Frederic Weisbecker8cb76d92009-06-26 16:28:00 +020091struct ip_callchain {
92 u64 nr;
93 u64 ips[0];
Peter Zijlstraf5970552009-06-18 23:22:55 +020094};
95
Thomas Gleixner6eda5832009-05-01 18:29:57 +020096#endif