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GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / toolchains / hndtools-arm-linux-2.6.36-uclibc-4.5.3 / arm-brcm-linux-uclibcgnueabi / sysroot / usr / include / linux / perf_event.h
blobe9c6540735e088a116e98bf5aba15eac2285c155
1 /*
2 * Performance events:
3 *
4 * Copyright (C) 2008-2009, Thomas Gleixner <tglx@linutronix.de>
5 * Copyright (C) 2008-2009, Red Hat, Inc., Ingo Molnar
6 * Copyright (C) 2008-2009, Red Hat, Inc., Peter Zijlstra
7 *
8 * Data type definitions, declarations, prototypes.
9 *
10 * Started by: Thomas Gleixner and Ingo Molnar
11 *
12 * For licencing details see kernel-base/COPYING
13 */
14 #ifndef _LINUX_PERF_EVENT_H
15 #define _LINUX_PERF_EVENT_H
16
17 #include <linux/types.h>
18 #include <linux/ioctl.h>
19 #include <asm/byteorder.h>
20
21 /*
22 * User-space ABI bits:
23 */
24
25 /*
26 * attr.type
27 */
28 enum perf_type_id {
29 PERF_TYPE_HARDWARE = 0,
30 PERF_TYPE_SOFTWARE = 1,
31 PERF_TYPE_TRACEPOINT = 2,
32 PERF_TYPE_HW_CACHE = 3,
33 PERF_TYPE_RAW = 4,
34 PERF_TYPE_BREAKPOINT = 5,
35
36 PERF_TYPE_MAX, /* non-ABI */
37 };
38
39 /*
40 * Generalized performance event event_id types, used by the
41 * attr.event_id parameter of the sys_perf_event_open()
42 * syscall:
43 */
44 enum perf_hw_id {
45 /*
46 * Common hardware events, generalized by the kernel:
47 */
48 PERF_COUNT_HW_CPU_CYCLES = 0,
49 PERF_COUNT_HW_INSTRUCTIONS = 1,
50 PERF_COUNT_HW_CACHE_REFERENCES = 2,
51 PERF_COUNT_HW_CACHE_MISSES = 3,
52 PERF_COUNT_HW_BRANCH_INSTRUCTIONS = 4,
53 PERF_COUNT_HW_BRANCH_MISSES = 5,
54 PERF_COUNT_HW_BUS_CYCLES = 6,
55
56 PERF_COUNT_HW_MAX, /* non-ABI */
57 };
58
59 /*
60 * Generalized hardware cache events:
61 *
62 * { L1-D, L1-I, LLC, ITLB, DTLB, BPU } x
63 * { read, write, prefetch } x
64 * { accesses, misses }
65 */
66 enum perf_hw_cache_id {
67 PERF_COUNT_HW_CACHE_L1D = 0,
68 PERF_COUNT_HW_CACHE_L1I = 1,
69 PERF_COUNT_HW_CACHE_LL = 2,
70 PERF_COUNT_HW_CACHE_DTLB = 3,
71 PERF_COUNT_HW_CACHE_ITLB = 4,
72 PERF_COUNT_HW_CACHE_BPU = 5,
73
74 PERF_COUNT_HW_CACHE_MAX, /* non-ABI */
75 };
76
77 enum perf_hw_cache_op_id {
78 PERF_COUNT_HW_CACHE_OP_READ = 0,
79 PERF_COUNT_HW_CACHE_OP_WRITE = 1,
80 PERF_COUNT_HW_CACHE_OP_PREFETCH = 2,
81
82 PERF_COUNT_HW_CACHE_OP_MAX, /* non-ABI */
83 };
84
85 enum perf_hw_cache_op_result_id {
86 PERF_COUNT_HW_CACHE_RESULT_ACCESS = 0,
87 PERF_COUNT_HW_CACHE_RESULT_MISS = 1,
88
89 PERF_COUNT_HW_CACHE_RESULT_MAX, /* non-ABI */
90 };
91
92 /*
93 * Special "software" events provided by the kernel, even if the hardware
94 * does not support performance events. These events measure various
95 * physical and sw events of the kernel (and allow the profiling of them as
96 * well):
97 */
98 enum perf_sw_ids {
99 PERF_COUNT_SW_CPU_CLOCK = 0,
100 PERF_COUNT_SW_TASK_CLOCK = 1,
101 PERF_COUNT_SW_PAGE_FAULTS = 2,
102 PERF_COUNT_SW_CONTEXT_SWITCHES = 3,
103 PERF_COUNT_SW_CPU_MIGRATIONS = 4,
104 PERF_COUNT_SW_PAGE_FAULTS_MIN = 5,
105 PERF_COUNT_SW_PAGE_FAULTS_MAJ = 6,
106 PERF_COUNT_SW_ALIGNMENT_FAULTS = 7,
107 PERF_COUNT_SW_EMULATION_FAULTS = 8,
108
109 PERF_COUNT_SW_MAX, /* non-ABI */
110 };
111
112 /*
113 * Bits that can be set in attr.sample_type to request information
114 * in the overflow packets.
115 */
116 enum perf_event_sample_format {
117 PERF_SAMPLE_IP = 1U << 0,
118 PERF_SAMPLE_TID = 1U << 1,
119 PERF_SAMPLE_TIME = 1U << 2,
120 PERF_SAMPLE_ADDR = 1U << 3,
121 PERF_SAMPLE_READ = 1U << 4,
122 PERF_SAMPLE_CALLCHAIN = 1U << 5,
123 PERF_SAMPLE_ID = 1U << 6,
124 PERF_SAMPLE_CPU = 1U << 7,
125 PERF_SAMPLE_PERIOD = 1U << 8,
126 PERF_SAMPLE_STREAM_ID = 1U << 9,
127 PERF_SAMPLE_RAW = 1U << 10,
128
129 PERF_SAMPLE_MAX = 1U << 11, /* non-ABI */
130 };
131
132 /*
133 * The format of the data returned by read() on a perf event fd,
134 * as specified by attr.read_format:
135 *
136 * struct read_format {
137 * { u64 value;
138 * { u64 time_enabled; } && PERF_FORMAT_ENABLED
139 * { u64 time_running; } && PERF_FORMAT_RUNNING
140 * { u64 id; } && PERF_FORMAT_ID
141 * } && !PERF_FORMAT_GROUP
142 *
143 * { u64 nr;
144 * { u64 time_enabled; } && PERF_FORMAT_ENABLED
145 * { u64 time_running; } && PERF_FORMAT_RUNNING
146 * { u64 value;
147 * { u64 id; } && PERF_FORMAT_ID
148 * } cntr[nr];
149 * } && PERF_FORMAT_GROUP
150 * };
151 */
152 enum perf_event_read_format {
153 PERF_FORMAT_TOTAL_TIME_ENABLED = 1U << 0,
154 PERF_FORMAT_TOTAL_TIME_RUNNING = 1U << 1,
155 PERF_FORMAT_ID = 1U << 2,
156 PERF_FORMAT_GROUP = 1U << 3,
157
158 PERF_FORMAT_MAX = 1U << 4, /* non-ABI */
159 };
160
161 #define PERF_ATTR_SIZE_VER0 64 /* sizeof first published struct */
162
163 /*
164 * Hardware event_id to monitor via a performance monitoring event:
165 */
166 struct perf_event_attr {
167
168 /*
169 * Major type: hardware/software/tracepoint/etc.
170 */
171 __u32 type;
172
173 /*
174 * Size of the attr structure, for fwd/bwd compat.
175 */
176 __u32 size;
177
178 /*
179 * Type specific configuration information.
180 */
181 __u64 config;
182
183 union {
184 __u64 sample_period;
185 __u64 sample_freq;
186 };
187
188 __u64 sample_type;
189 __u64 read_format;
190
191 __u64 disabled : 1, /* off by default */
192 inherit : 1, /* children inherit it */
193 pinned : 1, /* must always be on PMU */
194 exclusive : 1, /* only group on PMU */
195 exclude_user : 1, /* don't count user */
196 exclude_kernel : 1, /* ditto kernel */
197 exclude_hv : 1, /* ditto hypervisor */
198 exclude_idle : 1, /* don't count when idle */
199 mmap : 1, /* include mmap data */
200 comm : 1, /* include comm data */
201 freq : 1, /* use freq, not period */
202 inherit_stat : 1, /* per task counts */
203 enable_on_exec : 1, /* next exec enables */
204 task : 1, /* trace fork/exit */
205 watermark : 1, /* wakeup_watermark */
206 /*
207 * precise_ip:
208 *
209 * 0 - SAMPLE_IP can have arbitrary skid
210 * 1 - SAMPLE_IP must have constant skid
211 * 2 - SAMPLE_IP requested to have 0 skid
212 * 3 - SAMPLE_IP must have 0 skid
213 *
214 * See also PERF_RECORD_MISC_EXACT_IP
215 */
216 precise_ip : 2, /* skid constraint */
217 mmap_data : 1, /* non-exec mmap data */
218
219 __reserved_1 : 46;
220
221 union {
222 __u32 wakeup_events; /* wakeup every n events */
223 __u32 wakeup_watermark; /* bytes before wakeup */
224 };
225
226 __u32 bp_type;
227 __u64 bp_addr;
228 __u64 bp_len;
229 };
230
231 /*
232 * Ioctls that can be done on a perf event fd:
233 */
234 #define PERF_EVENT_IOC_ENABLE _IO ('$', 0)
235 #define PERF_EVENT_IOC_DISABLE _IO ('$', 1)
236 #define PERF_EVENT_IOC_REFRESH _IO ('$', 2)
237 #define PERF_EVENT_IOC_RESET _IO ('$', 3)
238 #define PERF_EVENT_IOC_PERIOD _IOW('$', 4, __u64)
239 #define PERF_EVENT_IOC_SET_OUTPUT _IO ('$', 5)
240 #define PERF_EVENT_IOC_SET_FILTER _IOW('$', 6, char *)
241
242 enum perf_event_ioc_flags {
243 PERF_IOC_FLAG_GROUP = 1U << 0,
244 };
245
246 /*
247 * Structure of the page that can be mapped via mmap
248 */
249 struct perf_event_mmap_page {
250 __u32 version; /* version number of this structure */
251 __u32 compat_version; /* lowest version this is compat with */
252
253 /*
254 * Bits needed to read the hw events in user-space.
255 *
256 * u32 seq;
257 * s64 count;
258 *
259 * do {
260 * seq = pc->lock;
261 *
262 * barrier()
263 * if (pc->index) {
264 * count = pmc_read(pc->index - 1);
265 * count += pc->offset;
266 * } else
267 * goto regular_read;
268 *
269 * barrier();
270 * } while (pc->lock != seq);
271 *
272 * NOTE: for obvious reason this only works on self-monitoring
273 * processes.
274 */
275 __u32 lock; /* seqlock for synchronization */
276 __u32 index; /* hardware event identifier */
277 __s64 offset; /* add to hardware event value */
278 __u64 time_enabled; /* time event active */
279 __u64 time_running; /* time event on cpu */
280
281 /*
282 * Hole for extension of the self monitor capabilities
283 */
284
285 __u64 __reserved[123]; /* align to 1k */
286
287 /*
288 * Control data for the mmap() data buffer.
289 *
290 * User-space reading the @data_head value should issue an rmb(), on
291 * SMP capable platforms, after reading this value -- see
292 * perf_event_wakeup().
293 *
294 * When the mapping is PROT_WRITE the @data_tail value should be
295 * written by userspace to reflect the last read data. In this case
296 * the kernel will not over-write unread data.
297 */
298 __u64 data_head; /* head in the data section */
299 __u64 data_tail; /* user-space written tail */
300 };
301
302 #define PERF_RECORD_MISC_CPUMODE_MASK (7 << 0)
303 #define PERF_RECORD_MISC_CPUMODE_UNKNOWN (0 << 0)
304 #define PERF_RECORD_MISC_KERNEL (1 << 0)
305 #define PERF_RECORD_MISC_USER (2 << 0)
306 #define PERF_RECORD_MISC_HYPERVISOR (3 << 0)
307 #define PERF_RECORD_MISC_GUEST_KERNEL (4 << 0)
308 #define PERF_RECORD_MISC_GUEST_USER (5 << 0)
309
310 /*
311 * Indicates that the content of PERF_SAMPLE_IP points to
312 * the actual instruction that triggered the event. See also
313 * perf_event_attr::precise_ip.
314 */
315 #define PERF_RECORD_MISC_EXACT_IP (1 << 14)
316 /*
317 * Reserve the last bit to indicate some extended misc field
318 */
319 #define PERF_RECORD_MISC_EXT_RESERVED (1 << 15)
320
321 struct perf_event_header {
322 __u32 type;
323 __u16 misc;
324 __u16 size;
325 };
326
327 enum perf_event_type {
328
329 /*
330 * The MMAP events record the PROT_EXEC mappings so that we can
331 * correlate userspace IPs to code. They have the following structure:
332 *
333 * struct {
334 * struct perf_event_header header;
335 *
336 * u32 pid, tid;
337 * u64 addr;
338 * u64 len;
339 * u64 pgoff;
340 * char filename[];
341 * };
342 */
343 PERF_RECORD_MMAP = 1,
344
345 /*
346 * struct {
347 * struct perf_event_header header;
348 * u64 id;
349 * u64 lost;
350 * };
351 */
352 PERF_RECORD_LOST = 2,
353
354 /*
355 * struct {
356 * struct perf_event_header header;
357 *
358 * u32 pid, tid;
359 * char comm[];
360 * };
361 */
362 PERF_RECORD_COMM = 3,
363
364 /*
365 * struct {
366 * struct perf_event_header header;
367 * u32 pid, ppid;
368 * u32 tid, ptid;
369 * u64 time;
370 * };
371 */
372 PERF_RECORD_EXIT = 4,
373
374 /*
375 * struct {
376 * struct perf_event_header header;
377 * u64 time;
378 * u64 id;
379 * u64 stream_id;
380 * };
381 */
382 PERF_RECORD_THROTTLE = 5,
383 PERF_RECORD_UNTHROTTLE = 6,
384
385 /*
386 * struct {
387 * struct perf_event_header header;
388 * u32 pid, ppid;
389 * u32 tid, ptid;
390 * u64 time;
391 * };
392 */
393 PERF_RECORD_FORK = 7,
394
395 /*
396 * struct {
397 * struct perf_event_header header;
398 * u32 pid, tid;
399 *
400 * struct read_format values;
401 * };
402 */
403 PERF_RECORD_READ = 8,
404
405 /*
406 * struct {
407 * struct perf_event_header header;
408 *
409 * { u64 ip; } && PERF_SAMPLE_IP
410 * { u32 pid, tid; } && PERF_SAMPLE_TID
411 * { u64 time; } && PERF_SAMPLE_TIME
412 * { u64 addr; } && PERF_SAMPLE_ADDR
413 * { u64 id; } && PERF_SAMPLE_ID
414 * { u64 stream_id;} && PERF_SAMPLE_STREAM_ID
415 * { u32 cpu, res; } && PERF_SAMPLE_CPU
416 * { u64 period; } && PERF_SAMPLE_PERIOD
417 *
418 * { struct read_format values; } && PERF_SAMPLE_READ
419 *
420 * { u64 nr,
421 * u64 ips[nr]; } && PERF_SAMPLE_CALLCHAIN
422 *
423 * #
424 * # The RAW record below is opaque data wrt the ABI
425 * #
426 * # That is, the ABI doesn't make any promises wrt to
427 * # the stability of its content, it may vary depending
428 * # on event, hardware, kernel version and phase of
429 * # the moon.
430 * #
431 * # In other words, PERF_SAMPLE_RAW contents are not an ABI.
432 * #
433 *
434 * { u32 size;
435 * char data[size];}&& PERF_SAMPLE_RAW
436 * };
437 */
438 PERF_RECORD_SAMPLE = 9,
439
440 PERF_RECORD_MAX, /* non-ABI */
441 };
442
443 enum perf_callchain_context {
444 PERF_CONTEXT_HV = (__u64)-32,
445 PERF_CONTEXT_KERNEL = (__u64)-128,
446 PERF_CONTEXT_USER = (__u64)-512,
447
448 PERF_CONTEXT_GUEST = (__u64)-2048,
449 PERF_CONTEXT_GUEST_KERNEL = (__u64)-2176,
450 PERF_CONTEXT_GUEST_USER = (__u64)-2560,
451
452 PERF_CONTEXT_MAX = (__u64)-4095,
453 };
454
455 #define PERF_FLAG_FD_NO_GROUP (1U << 0)
456 #define PERF_FLAG_FD_OUTPUT (1U << 1)
457
458 #endif /* _LINUX_PERF_EVENT_H */
Tomato firmware and modifications.