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git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - tools/perf/perf.h
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");
10 #if defined(__x86_64__)
11 #include "../../arch/x86/include/asm/unistd.h"
12 #define rmb() asm volatile("lfence" ::: "memory")
13 #define cpu_relax() asm volatile("rep; nop" ::: "memory");
17 #include "../../arch/powerpc/include/asm/unistd.h"
18 #define rmb() asm volatile ("sync" ::: "memory")
19 #define cpu_relax() asm volatile ("" ::: "memory");
23 #include "../../arch/s390/include/asm/unistd.h"
24 #define rmb() asm volatile("bcr 15,0" ::: "memory")
25 #define cpu_relax() asm volatile("" ::: "memory");
29 #include "../../arch/sh/include/asm/unistd.h"
30 #if defined(__SH4A__) || defined(__SH5__)
31 # define rmb() asm volatile("synco" ::: "memory")
33 # define rmb() asm volatile("" ::: "memory")
35 #define cpu_relax() asm volatile("" ::: "memory")
39 #include "../../arch/parisc/include/asm/unistd.h"
40 #define rmb() asm volatile("" ::: "memory")
41 #define cpu_relax() asm volatile("" ::: "memory");
45 #include "../../arch/sparc/include/asm/unistd.h"
46 #define rmb() asm volatile("":::"memory")
47 #define cpu_relax() asm volatile("":::"memory")
51 #include "../../arch/alpha/include/asm/unistd.h"
52 #define rmb() asm volatile("mb" ::: "memory")
53 #define cpu_relax() asm volatile("" ::: "memory")
57 #include "../../arch/ia64/include/asm/unistd.h"
58 #define rmb() asm volatile ("mf" ::: "memory")
59 #define cpu_relax() asm volatile ("hint @pause" ::: "memory")
63 #include "../../arch/arm/include/asm/unistd.h"
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.
68 #define rmb() asm volatile("mov r0, #0xffff0fff; mov lr, pc;" \
69 "sub pc, r0, #95" ::: "r0", "lr", "cc", \
71 #define cpu_relax() asm volatile("":::"memory")
76 #include <sys/types.h>
77 #include <sys/syscall.h>
79 #include "../../include/linux/perf_event.h"
80 #include "util/types.h"
83 * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all
84 * counters in the current task.
86 #define PR_TASK_PERF_EVENTS_DISABLE 31
87 #define PR_TASK_PERF_EVENTS_ENABLE 32
90 # define NSEC_PER_SEC 1000000000ULL
93 static inline unsigned long long rdclock(void)
97 clock_gettime(CLOCK_MONOTONIC
, &ts
);
98 return ts
.tv_sec
* 1000000000ULL + ts
.tv_nsec
;
102 * Pick up some kernel type conventions:
107 #define __used __attribute__((__unused__))
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; })
117 sys_perf_event_open(struct perf_event_attr
*attr
,
118 pid_t pid
, int cpu
, int group_fd
,
121 attr
->size
= sizeof(*attr
);
122 return syscall(__NR_perf_event_open
, attr
, pid
, cpu
,
126 #define MAX_COUNTERS 256
127 #define MAX_NR_CPUS 256
129 struct ip_callchain
{