blob: 2abeb20d0bf371d34c9d6c7a9fe7fe16b202e2c9 [file] [log] [blame]
Thomas Gleixner6eda5832009-05-01 18:29:57 +02001#ifndef _PERF_PERF_H
2#define _PERF_PERF_H
3
Vince Weaver11d15782009-07-08 17:46:14 -04004#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__)
Peter Zijlstra1a482f32009-05-23 18:28:58 +020011#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
Martin Schwidefsky12310e92009-06-22 12:08:22 +020022#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
Paul Mundtfebe8342009-06-25 14:41:57 +090028#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
Kyle McMartin2d4618d2009-06-23 21:38:49 -040038#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
Jens Axboe825c9fb2009-09-04 02:56:22 -070044#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
Peter Zijlstra1a482f32009-05-23 18:28:58 +020050#include <time.h>
51#include <unistd.h>
52#include <sys/types.h>
53#include <sys/syscall.h>
54
55#include "../../include/linux/perf_counter.h"
Peter Zijlstra7c6a1c62009-06-25 17:05:54 +020056#include "util/types.h"
Peter Zijlstra1a482f32009-05-23 18:28:58 +020057
Thomas Gleixner6eda5832009-05-01 18:29:57 +020058/*
59 * prctl(PR_TASK_PERF_COUNTERS_DISABLE) will (cheaply) disable all
60 * counters in the current task.
61 */
62#define PR_TASK_PERF_COUNTERS_DISABLE 31
63#define PR_TASK_PERF_COUNTERS_ENABLE 32
64
Thomas Gleixnera92e702372009-05-01 18:39:47 +020065#ifndef NSEC_PER_SEC
66# define NSEC_PER_SEC 1000000000ULL
67#endif
68
69static inline unsigned long long rdclock(void)
70{
71 struct timespec ts;
72
73 clock_gettime(CLOCK_MONOTONIC, &ts);
74 return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
75}
Thomas Gleixner6eda5832009-05-01 18:29:57 +020076
77/*
78 * Pick up some kernel type conventions:
79 */
80#define __user
81#define asmlinkage
82
Ingo Molnarf37a2912009-07-01 12:37:06 +020083#define __used __attribute__((__unused__))
84
Thomas Gleixner6eda5832009-05-01 18:29:57 +020085#define unlikely(x) __builtin_expect(!!(x), 0)
86#define min(x, y) ({ \
87 typeof(x) _min1 = (x); \
88 typeof(y) _min2 = (y); \
89 (void) (&_min1 == &_min2); \
90 _min1 < _min2 ? _min1 : _min2; })
91
92static inline int
Peter Zijlstra974802e2009-06-12 12:46:55 +020093sys_perf_counter_open(struct perf_counter_attr *attr,
Thomas Gleixner6eda5832009-05-01 18:29:57 +020094 pid_t pid, int cpu, int group_fd,
95 unsigned long flags)
96{
Peter Zijlstra974802e2009-06-12 12:46:55 +020097 attr->size = sizeof(*attr);
98 return syscall(__NR_perf_counter_open, attr, pid, cpu,
Thomas Gleixner6eda5832009-05-01 18:29:57 +020099 group_fd, flags);
100}
101
Ingo Molnar85a9f922009-05-25 09:59:50 +0200102#define MAX_COUNTERS 256
103#define MAX_NR_CPUS 256
Thomas Gleixner6eda5832009-05-01 18:29:57 +0200104
Frederic Weisbecker8cb76d92009-06-26 16:28:00 +0200105struct ip_callchain {
106 u64 nr;
107 u64 ips[0];
Peter Zijlstraf5970552009-06-18 23:22:55 +0200108};
109
Thomas Gleixner6eda5832009-05-01 18:29:57 +0200110#endif