Merge tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas...
[linux-3.10.git] / tools / perf / perf.h
1 #ifndef _PERF_PERF_H
2 #define _PERF_PERF_H
3
4 struct winsize;
5
6 void get_term_dimensions(struct winsize *ws);
7
8 #if defined(__i386__)
9 #include "../../arch/x86/include/asm/unistd.h"
10 #define rmb()           asm volatile("lock; addl $0,0(%%esp)" ::: "memory")
11 #define cpu_relax()     asm volatile("rep; nop" ::: "memory");
12 #define CPUINFO_PROC    "model name"
13 #ifndef __NR_perf_event_open
14 # define __NR_perf_event_open 336
15 #endif
16 #endif
17
18 #if defined(__x86_64__)
19 #include "../../arch/x86/include/asm/unistd.h"
20 #define rmb()           asm volatile("lfence" ::: "memory")
21 #define cpu_relax()     asm volatile("rep; nop" ::: "memory");
22 #define CPUINFO_PROC    "model name"
23 #ifndef __NR_perf_event_open
24 # define __NR_perf_event_open 298
25 #endif
26 #endif
27
28 #ifdef __powerpc__
29 #include "../../arch/powerpc/include/asm/unistd.h"
30 #define rmb()           asm volatile ("sync" ::: "memory")
31 #define cpu_relax()     asm volatile ("" ::: "memory");
32 #define CPUINFO_PROC    "cpu"
33 #endif
34
35 #ifdef __s390__
36 #include "../../arch/s390/include/asm/unistd.h"
37 #define rmb()           asm volatile("bcr 15,0" ::: "memory")
38 #define cpu_relax()     asm volatile("" ::: "memory");
39 #endif
40
41 #ifdef __sh__
42 #include "../../arch/sh/include/asm/unistd.h"
43 #if defined(__SH4A__) || defined(__SH5__)
44 # define rmb()          asm volatile("synco" ::: "memory")
45 #else
46 # define rmb()          asm volatile("" ::: "memory")
47 #endif
48 #define cpu_relax()     asm volatile("" ::: "memory")
49 #define CPUINFO_PROC    "cpu type"
50 #endif
51
52 #ifdef __hppa__
53 #include "../../arch/parisc/include/asm/unistd.h"
54 #define rmb()           asm volatile("" ::: "memory")
55 #define cpu_relax()     asm volatile("" ::: "memory");
56 #define CPUINFO_PROC    "cpu"
57 #endif
58
59 #ifdef __sparc__
60 #include "../../arch/sparc/include/asm/unistd.h"
61 #define rmb()           asm volatile("":::"memory")
62 #define cpu_relax()     asm volatile("":::"memory")
63 #define CPUINFO_PROC    "cpu"
64 #endif
65
66 #ifdef __alpha__
67 #include "../../arch/alpha/include/asm/unistd.h"
68 #define rmb()           asm volatile("mb" ::: "memory")
69 #define cpu_relax()     asm volatile("" ::: "memory")
70 #define CPUINFO_PROC    "cpu model"
71 #endif
72
73 #ifdef __ia64__
74 #include "../../arch/ia64/include/asm/unistd.h"
75 #define rmb()           asm volatile ("mf" ::: "memory")
76 #define cpu_relax()     asm volatile ("hint @pause" ::: "memory")
77 #define CPUINFO_PROC    "model name"
78 #endif
79
80 #ifdef __arm__
81 #include "../../arch/arm/include/asm/unistd.h"
82 /*
83  * Use the __kuser_memory_barrier helper in the CPU helper page. See
84  * arch/arm/kernel/entry-armv.S in the kernel source for details.
85  */
86 #define rmb()           ((void(*)(void))0xffff0fa0)()
87 #define cpu_relax()     asm volatile("":::"memory")
88 #define CPUINFO_PROC    "Processor"
89 #endif
90
91 #ifdef __aarch64__
92 #include "../../arch/arm64/include/asm/unistd.h"
93 #define rmb()           asm volatile("dmb ld" ::: "memory")
94 #define cpu_relax()     asm volatile("yield" ::: "memory")
95 #endif
96
97 #ifdef __mips__
98 #include "../../arch/mips/include/asm/unistd.h"
99 #define rmb()           asm volatile(                                   \
100                                 ".set   mips2\n\t"                      \
101                                 "sync\n\t"                              \
102                                 ".set   mips0"                          \
103                                 : /* no output */                       \
104                                 : /* no input */                        \
105                                 : "memory")
106 #define cpu_relax()     asm volatile("" ::: "memory")
107 #define CPUINFO_PROC    "cpu model"
108 #endif
109
110 #include <time.h>
111 #include <unistd.h>
112 #include <sys/types.h>
113 #include <sys/syscall.h>
114
115 #include "../../include/linux/perf_event.h"
116 #include "util/types.h"
117 #include <stdbool.h>
118
119 struct perf_mmap {
120         void                    *base;
121         int                     mask;
122         unsigned int            prev;
123 };
124
125 static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm)
126 {
127         struct perf_event_mmap_page *pc = mm->base;
128         int head = pc->data_head;
129         rmb();
130         return head;
131 }
132
133 static inline void perf_mmap__write_tail(struct perf_mmap *md,
134                                          unsigned long tail)
135 {
136         struct perf_event_mmap_page *pc = md->base;
137
138         /*
139          * ensure all reads are done before we write the tail out.
140          */
141         /* mb(); */
142         pc->data_tail = tail;
143 }
144
145 /*
146  * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all
147  * counters in the current task.
148  */
149 #define PR_TASK_PERF_EVENTS_DISABLE   31
150 #define PR_TASK_PERF_EVENTS_ENABLE    32
151
152 #ifndef NSEC_PER_SEC
153 # define NSEC_PER_SEC                   1000000000ULL
154 #endif
155
156 static inline unsigned long long rdclock(void)
157 {
158         struct timespec ts;
159
160         clock_gettime(CLOCK_MONOTONIC, &ts);
161         return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
162 }
163
164 /*
165  * Pick up some kernel type conventions:
166  */
167 #define __user
168 #define asmlinkage
169
170 #define unlikely(x)     __builtin_expect(!!(x), 0)
171 #define min(x, y) ({                            \
172         typeof(x) _min1 = (x);                  \
173         typeof(y) _min2 = (y);                  \
174         (void) (&_min1 == &_min2);              \
175         _min1 < _min2 ? _min1 : _min2; })
176
177 static inline int
178 sys_perf_event_open(struct perf_event_attr *attr,
179                       pid_t pid, int cpu, int group_fd,
180                       unsigned long flags)
181 {
182         return syscall(__NR_perf_event_open, attr, pid, cpu,
183                        group_fd, flags);
184 }
185
186 #define MAX_COUNTERS                    256
187 #define MAX_NR_CPUS                     256
188
189 struct ip_callchain {
190         u64 nr;
191         u64 ips[0];
192 };
193
194 struct branch_flags {
195         u64 mispred:1;
196         u64 predicted:1;
197         u64 reserved:62;
198 };
199
200 struct branch_entry {
201         u64                             from;
202         u64                             to;
203         struct branch_flags flags;
204 };
205
206 struct branch_stack {
207         u64                             nr;
208         struct branch_entry     entries[0];
209 };
210
211 extern bool perf_host, perf_guest;
212 extern const char perf_version_string[];
213
214 void pthread__unblock_sigwinch(void);
215
216 #include "util/target.h"
217
218 enum perf_call_graph_mode {
219         CALLCHAIN_NONE,
220         CALLCHAIN_FP,
221         CALLCHAIN_DWARF
222 };
223
224 struct perf_record_opts {
225         struct perf_target target;
226         int          call_graph;
227         bool         group;
228         bool         inherit_stat;
229         bool         no_delay;
230         bool         no_inherit;
231         bool         no_samples;
232         bool         pipe_output;
233         bool         raw_samples;
234         bool         sample_address;
235         bool         sample_time;
236         bool         sample_id_all_missing;
237         bool         exclude_guest_missing;
238         bool         period;
239         unsigned int freq;
240         unsigned int mmap_pages;
241         unsigned int user_freq;
242         u64          branch_stack;
243         u64          default_interval;
244         u64          user_interval;
245         u16          stack_dump_size;
246 };
247
248 #endif