1 | /* |
2 | * Performance events: |
3 | * |
4 | * Copyright (C) 2008-2009, Thomas Gleixner <tglx@linutronix.de> |
5 | * Copyright (C) 2008-2011, Red Hat, Inc., Ingo Molnar |
6 | * Copyright (C) 2008-2011, 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 _UAPI_LINUX_PERF_EVENT_H |
15 | #define _UAPI_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 | PERF_COUNT_HW_STALLED_CYCLES_FRONTEND = 7, |
56 | PERF_COUNT_HW_STALLED_CYCLES_BACKEND = 8, |
57 | PERF_COUNT_HW_REF_CPU_CYCLES = 9, |
58 | |
59 | PERF_COUNT_HW_MAX, /* non-ABI */ |
60 | }; |
61 | |
62 | /* |
63 | * Generalized hardware cache events: |
64 | * |
65 | * { L1-D, L1-I, LLC, ITLB, DTLB, BPU, NODE } x |
66 | * { read, write, prefetch } x |
67 | * { accesses, misses } |
68 | */ |
69 | enum perf_hw_cache_id { |
70 | PERF_COUNT_HW_CACHE_L1D = 0, |
71 | PERF_COUNT_HW_CACHE_L1I = 1, |
72 | PERF_COUNT_HW_CACHE_LL = 2, |
73 | PERF_COUNT_HW_CACHE_DTLB = 3, |
74 | PERF_COUNT_HW_CACHE_ITLB = 4, |
75 | PERF_COUNT_HW_CACHE_BPU = 5, |
76 | PERF_COUNT_HW_CACHE_NODE = 6, |
77 | |
78 | PERF_COUNT_HW_CACHE_MAX, /* non-ABI */ |
79 | }; |
80 | |
81 | enum perf_hw_cache_op_id { |
82 | PERF_COUNT_HW_CACHE_OP_READ = 0, |
83 | PERF_COUNT_HW_CACHE_OP_WRITE = 1, |
84 | PERF_COUNT_HW_CACHE_OP_PREFETCH = 2, |
85 | |
86 | PERF_COUNT_HW_CACHE_OP_MAX, /* non-ABI */ |
87 | }; |
88 | |
89 | enum perf_hw_cache_op_result_id { |
90 | PERF_COUNT_HW_CACHE_RESULT_ACCESS = 0, |
91 | PERF_COUNT_HW_CACHE_RESULT_MISS = 1, |
92 | |
93 | PERF_COUNT_HW_CACHE_RESULT_MAX, /* non-ABI */ |
94 | }; |
95 | |
96 | /* |
97 | * Special "software" events provided by the kernel, even if the hardware |
98 | * does not support performance events. These events measure various |
99 | * physical and sw events of the kernel (and allow the profiling of them as |
100 | * well): |
101 | */ |
102 | enum perf_sw_ids { |
103 | PERF_COUNT_SW_CPU_CLOCK = 0, |
104 | PERF_COUNT_SW_TASK_CLOCK = 1, |
105 | PERF_COUNT_SW_PAGE_FAULTS = 2, |
106 | PERF_COUNT_SW_CONTEXT_SWITCHES = 3, |
107 | PERF_COUNT_SW_CPU_MIGRATIONS = 4, |
108 | PERF_COUNT_SW_PAGE_FAULTS_MIN = 5, |
109 | PERF_COUNT_SW_PAGE_FAULTS_MAJ = 6, |
110 | PERF_COUNT_SW_ALIGNMENT_FAULTS = 7, |
111 | PERF_COUNT_SW_EMULATION_FAULTS = 8, |
112 | |
113 | PERF_COUNT_SW_MAX, /* non-ABI */ |
114 | }; |
115 | |
116 | /* |
117 | * Bits that can be set in attr.sample_type to request information |
118 | * in the overflow packets. |
119 | */ |
120 | enum perf_event_sample_format { |
121 | PERF_SAMPLE_IP = 1U << 0, |
122 | PERF_SAMPLE_TID = 1U << 1, |
123 | PERF_SAMPLE_TIME = 1U << 2, |
124 | PERF_SAMPLE_ADDR = 1U << 3, |
125 | PERF_SAMPLE_READ = 1U << 4, |
126 | PERF_SAMPLE_CALLCHAIN = 1U << 5, |
127 | PERF_SAMPLE_ID = 1U << 6, |
128 | PERF_SAMPLE_CPU = 1U << 7, |
129 | PERF_SAMPLE_PERIOD = 1U << 8, |
130 | PERF_SAMPLE_STREAM_ID = 1U << 9, |
131 | PERF_SAMPLE_RAW = 1U << 10, |
132 | PERF_SAMPLE_BRANCH_STACK = 1U << 11, |
133 | PERF_SAMPLE_REGS_USER = 1U << 12, |
134 | PERF_SAMPLE_STACK_USER = 1U << 13, |
135 | |
136 | PERF_SAMPLE_MAX = 1U << 14, /* non-ABI */ |
137 | }; |
138 | |
139 | /* |
140 | * values to program into branch_sample_type when PERF_SAMPLE_BRANCH is set |
141 | * |
142 | * If the user does not pass priv level information via branch_sample_type, |
143 | * the kernel uses the event's priv level. Branch and event priv levels do |
144 | * not have to match. Branch priv level is checked for permissions. |
145 | * |
146 | * The branch types can be combined, however BRANCH_ANY covers all types |
147 | * of branches and therefore it supersedes all the other types. |
148 | */ |
149 | enum perf_branch_sample_type { |
150 | PERF_SAMPLE_BRANCH_USER = 1U << 0, /* user branches */ |
151 | PERF_SAMPLE_BRANCH_KERNEL = 1U << 1, /* kernel branches */ |
152 | PERF_SAMPLE_BRANCH_HV = 1U << 2, /* hypervisor branches */ |
153 | |
154 | PERF_SAMPLE_BRANCH_ANY = 1U << 3, /* any branch types */ |
155 | PERF_SAMPLE_BRANCH_ANY_CALL = 1U << 4, /* any call branch */ |
156 | PERF_SAMPLE_BRANCH_ANY_RETURN = 1U << 5, /* any return branch */ |
157 | PERF_SAMPLE_BRANCH_IND_CALL = 1U << 6, /* indirect calls */ |
158 | |
159 | PERF_SAMPLE_BRANCH_MAX = 1U << 7, /* non-ABI */ |
160 | }; |
161 | |
162 | #define PERF_SAMPLE_BRANCH_PLM_ALL \ |
163 | (PERF_SAMPLE_BRANCH_USER|\ |
164 | PERF_SAMPLE_BRANCH_KERNEL|\ |
165 | PERF_SAMPLE_BRANCH_HV) |
166 | |
167 | /* |
168 | * Values to determine ABI of the registers dump. |
169 | */ |
170 | enum perf_sample_regs_abi { |
171 | PERF_SAMPLE_REGS_ABI_NONE = 0, |
172 | PERF_SAMPLE_REGS_ABI_32 = 1, |
173 | PERF_SAMPLE_REGS_ABI_64 = 2, |
174 | }; |
175 | |
176 | /* |
177 | * The format of the data returned by read() on a perf event fd, |
178 | * as specified by attr.read_format: |
179 | * |
180 | * struct read_format { |
181 | * { u64 value; |
182 | * { u64 time_enabled; } && PERF_FORMAT_TOTAL_TIME_ENABLED |
183 | * { u64 time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING |
184 | * { u64 id; } && PERF_FORMAT_ID |
185 | * } && !PERF_FORMAT_GROUP |
186 | * |
187 | * { u64 nr; |
188 | * { u64 time_enabled; } && PERF_FORMAT_TOTAL_TIME_ENABLED |
189 | * { u64 time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING |
190 | * { u64 value; |
191 | * { u64 id; } && PERF_FORMAT_ID |
192 | * } cntr[nr]; |
193 | * } && PERF_FORMAT_GROUP |
194 | * }; |
195 | */ |
196 | enum perf_event_read_format { |
197 | PERF_FORMAT_TOTAL_TIME_ENABLED = 1U << 0, |
198 | PERF_FORMAT_TOTAL_TIME_RUNNING = 1U << 1, |
199 | PERF_FORMAT_ID = 1U << 2, |
200 | PERF_FORMAT_GROUP = 1U << 3, |
201 | |
202 | PERF_FORMAT_MAX = 1U << 4, /* non-ABI */ |
203 | }; |
204 | |
205 | #define PERF_ATTR_SIZE_VER0 64 /* sizeof first published struct */ |
206 | #define PERF_ATTR_SIZE_VER1 72 /* add: config2 */ |
207 | #define PERF_ATTR_SIZE_VER2 80 /* add: branch_sample_type */ |
208 | #define PERF_ATTR_SIZE_VER3 96 /* add: sample_regs_user */ |
209 | /* add: sample_stack_user */ |
210 | |
211 | /* |
212 | * Hardware event_id to monitor via a performance monitoring event: |
213 | */ |
214 | struct perf_event_attr { |
215 | |
216 | /* |
217 | * Major type: hardware/software/tracepoint/etc. |
218 | */ |
219 | __u32 type; |
220 | |
221 | /* |
222 | * Size of the attr structure, for fwd/bwd compat. |
223 | */ |
224 | __u32 size; |
225 | |
226 | /* |
227 | * Type specific configuration information. |
228 | */ |
229 | __u64 config; |
230 | |
231 | union { |
232 | __u64 sample_period; |
233 | __u64 sample_freq; |
234 | }; |
235 | |
236 | __u64 sample_type; |
237 | __u64 read_format; |
238 | |
239 | __u64 disabled : 1, /* off by default */ |
240 | inherit : 1, /* children inherit it */ |
241 | pinned : 1, /* must always be on PMU */ |
242 | exclusive : 1, /* only group on PMU */ |
243 | exclude_user : 1, /* don't count user */ |
244 | exclude_kernel : 1, /* ditto kernel */ |
245 | exclude_hv : 1, /* ditto hypervisor */ |
246 | exclude_idle : 1, /* don't count when idle */ |
247 | mmap : 1, /* include mmap data */ |
248 | comm : 1, /* include comm data */ |
249 | freq : 1, /* use freq, not period */ |
250 | inherit_stat : 1, /* per task counts */ |
251 | enable_on_exec : 1, /* next exec enables */ |
252 | task : 1, /* trace fork/exit */ |
253 | watermark : 1, /* wakeup_watermark */ |
254 | /* |
255 | * precise_ip: |
256 | * |
257 | * 0 - SAMPLE_IP can have arbitrary skid |
258 | * 1 - SAMPLE_IP must have constant skid |
259 | * 2 - SAMPLE_IP requested to have 0 skid |
260 | * 3 - SAMPLE_IP must have 0 skid |
261 | * |
262 | * See also PERF_RECORD_MISC_EXACT_IP |
263 | */ |
264 | precise_ip : 2, /* skid constraint */ |
265 | mmap_data : 1, /* non-exec mmap data */ |
266 | sample_id_all : 1, /* sample_type all events */ |
267 | |
268 | exclude_host : 1, /* don't count in host */ |
269 | exclude_guest : 1, /* don't count in guest */ |
270 | |
271 | exclude_callchain_kernel : 1, /* exclude kernel callchains */ |
272 | exclude_callchain_user : 1, /* exclude user callchains */ |
273 | |
274 | __reserved_1 : 41; |
275 | |
276 | union { |
277 | __u32 wakeup_events; /* wakeup every n events */ |
278 | __u32 wakeup_watermark; /* bytes before wakeup */ |
279 | }; |
280 | |
281 | __u32 bp_type; |
282 | union { |
283 | __u64 bp_addr; |
284 | __u64 config1; /* extension of config */ |
285 | }; |
286 | union { |
287 | __u64 bp_len; |
288 | __u64 config2; /* extension of config1 */ |
289 | }; |
290 | __u64 branch_sample_type; /* enum perf_branch_sample_type */ |
291 | |
292 | /* |
293 | * Defines set of user regs to dump on samples. |
294 | * See asm/perf_regs.h for details. |
295 | */ |
296 | __u64 sample_regs_user; |
297 | |
298 | /* |
299 | * Defines size of the user stack to dump on samples. |
300 | */ |
301 | __u32 sample_stack_user; |
302 | |
303 | /* Align to u64. */ |
304 | __u32 __reserved_2; |
305 | }; |
306 | |
307 | #define perf_flags(attr) (*(&(attr)->read_format + 1)) |
308 | |
309 | /* |
310 | * Ioctls that can be done on a perf event fd: |
311 | */ |
312 | #define PERF_EVENT_IOC_ENABLE _IO ('$', 0) |
313 | #define PERF_EVENT_IOC_DISABLE _IO ('$', 1) |
314 | #define PERF_EVENT_IOC_REFRESH _IO ('$', 2) |
315 | #define PERF_EVENT_IOC_RESET _IO ('$', 3) |
316 | #define PERF_EVENT_IOC_PERIOD _IOW('$', 4, __u64) |
317 | #define PERF_EVENT_IOC_SET_OUTPUT _IO ('$', 5) |
318 | #define PERF_EVENT_IOC_SET_FILTER _IOW('$', 6, char *) |
319 | |
320 | enum perf_event_ioc_flags { |
321 | PERF_IOC_FLAG_GROUP = 1U << 0, |
322 | }; |
323 | |
324 | /* |
325 | * Structure of the page that can be mapped via mmap |
326 | */ |
327 | struct perf_event_mmap_page { |
328 | __u32 version; /* version number of this structure */ |
329 | __u32 compat_version; /* lowest version this is compat with */ |
330 | |
331 | /* |
332 | * Bits needed to read the hw events in user-space. |
333 | * |
334 | * u32 seq, time_mult, time_shift, idx, width; |
335 | * u64 count, enabled, running; |
336 | * u64 cyc, time_offset; |
337 | * s64 pmc = 0; |
338 | * |
339 | * do { |
340 | * seq = pc->lock; |
341 | * barrier() |
342 | * |
343 | * enabled = pc->time_enabled; |
344 | * running = pc->time_running; |
345 | * |
346 | * if (pc->cap_usr_time && enabled != running) { |
347 | * cyc = rdtsc(); |
348 | * time_offset = pc->time_offset; |
349 | * time_mult = pc->time_mult; |
350 | * time_shift = pc->time_shift; |
351 | * } |
352 | * |
353 | * idx = pc->index; |
354 | * count = pc->offset; |
355 | * if (pc->cap_usr_rdpmc && idx) { |
356 | * width = pc->pmc_width; |
357 | * pmc = rdpmc(idx - 1); |
358 | * } |
359 | * |
360 | * barrier(); |
361 | * } while (pc->lock != seq); |
362 | * |
363 | * NOTE: for obvious reason this only works on self-monitoring |
364 | * processes. |
365 | */ |
366 | __u32 lock; /* seqlock for synchronization */ |
367 | __u32 index; /* hardware event identifier */ |
368 | __s64 offset; /* add to hardware event value */ |
369 | __u64 time_enabled; /* time event active */ |
370 | __u64 time_running; /* time event on cpu */ |
371 | union { |
372 | __u64 capabilities; |
373 | __u64 cap_usr_time : 1, |
374 | cap_usr_rdpmc : 1, |
375 | cap_____res : 62; |
376 | }; |
377 | |
378 | /* |
379 | * If cap_usr_rdpmc this field provides the bit-width of the value |
380 | * read using the rdpmc() or equivalent instruction. This can be used |
381 | * to sign extend the result like: |
382 | * |
383 | * pmc <<= 64 - width; |
384 | * pmc >>= 64 - width; // signed shift right |
385 | * count += pmc; |
386 | */ |
387 | __u16 pmc_width; |
388 | |
389 | /* |
390 | * If cap_usr_time the below fields can be used to compute the time |
391 | * delta since time_enabled (in ns) using rdtsc or similar. |
392 | * |
393 | * u64 quot, rem; |
394 | * u64 delta; |
395 | * |
396 | * quot = (cyc >> time_shift); |
397 | * rem = cyc & ((1 << time_shift) - 1); |
398 | * delta = time_offset + quot * time_mult + |
399 | * ((rem * time_mult) >> time_shift); |
400 | * |
401 | * Where time_offset,time_mult,time_shift and cyc are read in the |
402 | * seqcount loop described above. This delta can then be added to |
403 | * enabled and possible running (if idx), improving the scaling: |
404 | * |
405 | * enabled += delta; |
406 | * if (idx) |
407 | * running += delta; |
408 | * |
409 | * quot = count / running; |
410 | * rem = count % running; |
411 | * count = quot * enabled + (rem * enabled) / running; |
412 | */ |
413 | __u16 time_shift; |
414 | __u32 time_mult; |
415 | __u64 time_offset; |
416 | |
417 | /* |
418 | * Hole for extension of the self monitor capabilities |
419 | */ |
420 | |
421 | __u64 __reserved[120]; /* align to 1k */ |
422 | |
423 | /* |
424 | * Control data for the mmap() data buffer. |
425 | * |
426 | * User-space reading the @data_head value should issue an rmb(), on |
427 | * SMP capable platforms, after reading this value -- see |
428 | * perf_event_wakeup(). |
429 | * |
430 | * When the mapping is PROT_WRITE the @data_tail value should be |
431 | * written by userspace to reflect the last read data. In this case |
432 | * the kernel will not over-write unread data. |
433 | */ |
434 | __u64 data_head; /* head in the data section */ |
435 | __u64 data_tail; /* user-space written tail */ |
436 | }; |
437 | |
438 | #define PERF_RECORD_MISC_CPUMODE_MASK (7 << 0) |
439 | #define PERF_RECORD_MISC_CPUMODE_UNKNOWN (0 << 0) |
440 | #define PERF_RECORD_MISC_KERNEL (1 << 0) |
441 | #define PERF_RECORD_MISC_USER (2 << 0) |
442 | #define PERF_RECORD_MISC_HYPERVISOR (3 << 0) |
443 | #define PERF_RECORD_MISC_GUEST_KERNEL (4 << 0) |
444 | #define PERF_RECORD_MISC_GUEST_USER (5 << 0) |
445 | |
446 | /* |
447 | * Indicates that the content of PERF_SAMPLE_IP points to |
448 | * the actual instruction that triggered the event. See also |
449 | * perf_event_attr::precise_ip. |
450 | */ |
451 | #define PERF_RECORD_MISC_EXACT_IP (1 << 14) |
452 | /* |
453 | * Reserve the last bit to indicate some extended misc field |
454 | */ |
455 | #define PERF_RECORD_MISC_EXT_RESERVED (1 << 15) |
456 | |
457 | struct { |
458 | __u32 ; |
459 | __u16 ; |
460 | __u16 ; |
461 | }; |
462 | |
463 | enum perf_event_type { |
464 | |
465 | /* |
466 | * If perf_event_attr.sample_id_all is set then all event types will |
467 | * have the sample_type selected fields related to where/when |
468 | * (identity) an event took place (TID, TIME, ID, CPU, STREAM_ID) |
469 | * described in PERF_RECORD_SAMPLE below, it will be stashed just after |
470 | * the perf_event_header and the fields already present for the existing |
471 | * fields, i.e. at the end of the payload. That way a newer perf.data |
472 | * file will be supported by older perf tools, with these new optional |
473 | * fields being ignored. |
474 | * |
475 | * The MMAP events record the PROT_EXEC mappings so that we can |
476 | * correlate userspace IPs to code. They have the following structure: |
477 | * |
478 | * struct { |
479 | * struct perf_event_header header; |
480 | * |
481 | * u32 pid, tid; |
482 | * u64 addr; |
483 | * u64 len; |
484 | * u64 pgoff; |
485 | * char filename[]; |
486 | * }; |
487 | */ |
488 | PERF_RECORD_MMAP = 1, |
489 | |
490 | /* |
491 | * struct { |
492 | * struct perf_event_header header; |
493 | * u64 id; |
494 | * u64 lost; |
495 | * }; |
496 | */ |
497 | PERF_RECORD_LOST = 2, |
498 | |
499 | /* |
500 | * struct { |
501 | * struct perf_event_header header; |
502 | * |
503 | * u32 pid, tid; |
504 | * char comm[]; |
505 | * }; |
506 | */ |
507 | PERF_RECORD_COMM = 3, |
508 | |
509 | /* |
510 | * struct { |
511 | * struct perf_event_header header; |
512 | * u32 pid, ppid; |
513 | * u32 tid, ptid; |
514 | * u64 time; |
515 | * }; |
516 | */ |
517 | PERF_RECORD_EXIT = 4, |
518 | |
519 | /* |
520 | * struct { |
521 | * struct perf_event_header header; |
522 | * u64 time; |
523 | * u64 id; |
524 | * u64 stream_id; |
525 | * }; |
526 | */ |
527 | PERF_RECORD_THROTTLE = 5, |
528 | PERF_RECORD_UNTHROTTLE = 6, |
529 | |
530 | /* |
531 | * struct { |
532 | * struct perf_event_header header; |
533 | * u32 pid, ppid; |
534 | * u32 tid, ptid; |
535 | * u64 time; |
536 | * }; |
537 | */ |
538 | PERF_RECORD_FORK = 7, |
539 | |
540 | /* |
541 | * struct { |
542 | * struct perf_event_header header; |
543 | * u32 pid, tid; |
544 | * |
545 | * struct read_format values; |
546 | * }; |
547 | */ |
548 | PERF_RECORD_READ = 8, |
549 | |
550 | /* |
551 | * struct { |
552 | * struct perf_event_header header; |
553 | * |
554 | * { u64 ip; } && PERF_SAMPLE_IP |
555 | * { u32 pid, tid; } && PERF_SAMPLE_TID |
556 | * { u64 time; } && PERF_SAMPLE_TIME |
557 | * { u64 addr; } && PERF_SAMPLE_ADDR |
558 | * { u64 id; } && PERF_SAMPLE_ID |
559 | * { u64 stream_id;} && PERF_SAMPLE_STREAM_ID |
560 | * { u32 cpu, res; } && PERF_SAMPLE_CPU |
561 | * { u64 period; } && PERF_SAMPLE_PERIOD |
562 | * |
563 | * { struct read_format values; } && PERF_SAMPLE_READ |
564 | * |
565 | * { u64 nr, |
566 | * u64 ips[nr]; } && PERF_SAMPLE_CALLCHAIN |
567 | * |
568 | * # |
569 | * # The RAW record below is opaque data wrt the ABI |
570 | * # |
571 | * # That is, the ABI doesn't make any promises wrt to |
572 | * # the stability of its content, it may vary depending |
573 | * # on event, hardware, kernel version and phase of |
574 | * # the moon. |
575 | * # |
576 | * # In other words, PERF_SAMPLE_RAW contents are not an ABI. |
577 | * # |
578 | * |
579 | * { u32 size; |
580 | * char data[size];}&& PERF_SAMPLE_RAW |
581 | * |
582 | * { u64 from, to, flags } lbr[nr];} && PERF_SAMPLE_BRANCH_STACK |
583 | * |
584 | * { u64 abi; # enum perf_sample_regs_abi |
585 | * u64 regs[weight(mask)]; } && PERF_SAMPLE_REGS_USER |
586 | * |
587 | * { u64 size; |
588 | * char data[size]; |
589 | * u64 dyn_size; } && PERF_SAMPLE_STACK_USER |
590 | * }; |
591 | */ |
592 | PERF_RECORD_SAMPLE = 9, |
593 | |
594 | PERF_RECORD_MAX, /* non-ABI */ |
595 | }; |
596 | |
597 | #define PERF_MAX_STACK_DEPTH 127 |
598 | |
599 | enum perf_callchain_context { |
600 | PERF_CONTEXT_HV = (__u64)-32, |
601 | PERF_CONTEXT_KERNEL = (__u64)-128, |
602 | PERF_CONTEXT_USER = (__u64)-512, |
603 | |
604 | PERF_CONTEXT_GUEST = (__u64)-2048, |
605 | PERF_CONTEXT_GUEST_KERNEL = (__u64)-2176, |
606 | PERF_CONTEXT_GUEST_USER = (__u64)-2560, |
607 | |
608 | PERF_CONTEXT_MAX = (__u64)-4095, |
609 | }; |
610 | |
611 | #define PERF_FLAG_FD_NO_GROUP (1U << 0) |
612 | #define PERF_FLAG_FD_OUTPUT (1U << 1) |
613 | #define PERF_FLAG_PID_CGROUP (1U << 2) /* pid=cgroup id, per-cpu mode only */ |
614 | |
615 | #endif /* _UAPI_LINUX_PERF_EVENT_H */ |
616 | |