sched: Move completion code from core.c to completion.c
[linux-drm-fsl-dcu.git] / include / uapi / linux / perf_event.h
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         PERF_COUNT_SW_DUMMY                     = 9,
113
114         PERF_COUNT_SW_MAX,                      /* non-ABI */
115 };
116
117 /*
118  * Bits that can be set in attr.sample_type to request information
119  * in the overflow packets.
120  */
121 enum perf_event_sample_format {
122         PERF_SAMPLE_IP                          = 1U << 0,
123         PERF_SAMPLE_TID                         = 1U << 1,
124         PERF_SAMPLE_TIME                        = 1U << 2,
125         PERF_SAMPLE_ADDR                        = 1U << 3,
126         PERF_SAMPLE_READ                        = 1U << 4,
127         PERF_SAMPLE_CALLCHAIN                   = 1U << 5,
128         PERF_SAMPLE_ID                          = 1U << 6,
129         PERF_SAMPLE_CPU                         = 1U << 7,
130         PERF_SAMPLE_PERIOD                      = 1U << 8,
131         PERF_SAMPLE_STREAM_ID                   = 1U << 9,
132         PERF_SAMPLE_RAW                         = 1U << 10,
133         PERF_SAMPLE_BRANCH_STACK                = 1U << 11,
134         PERF_SAMPLE_REGS_USER                   = 1U << 12,
135         PERF_SAMPLE_STACK_USER                  = 1U << 13,
136         PERF_SAMPLE_WEIGHT                      = 1U << 14,
137         PERF_SAMPLE_DATA_SRC                    = 1U << 15,
138         PERF_SAMPLE_IDENTIFIER                  = 1U << 16,
139
140         PERF_SAMPLE_MAX = 1U << 17,             /* non-ABI */
141 };
142
143 /*
144  * values to program into branch_sample_type when PERF_SAMPLE_BRANCH is set
145  *
146  * If the user does not pass priv level information via branch_sample_type,
147  * the kernel uses the event's priv level. Branch and event priv levels do
148  * not have to match. Branch priv level is checked for permissions.
149  *
150  * The branch types can be combined, however BRANCH_ANY covers all types
151  * of branches and therefore it supersedes all the other types.
152  */
153 enum perf_branch_sample_type {
154         PERF_SAMPLE_BRANCH_USER         = 1U << 0, /* user branches */
155         PERF_SAMPLE_BRANCH_KERNEL       = 1U << 1, /* kernel branches */
156         PERF_SAMPLE_BRANCH_HV           = 1U << 2, /* hypervisor branches */
157
158         PERF_SAMPLE_BRANCH_ANY          = 1U << 3, /* any branch types */
159         PERF_SAMPLE_BRANCH_ANY_CALL     = 1U << 4, /* any call branch */
160         PERF_SAMPLE_BRANCH_ANY_RETURN   = 1U << 5, /* any return branch */
161         PERF_SAMPLE_BRANCH_IND_CALL     = 1U << 6, /* indirect calls */
162         PERF_SAMPLE_BRANCH_ABORT_TX     = 1U << 7, /* transaction aborts */
163         PERF_SAMPLE_BRANCH_IN_TX        = 1U << 8, /* in transaction */
164         PERF_SAMPLE_BRANCH_NO_TX        = 1U << 9, /* not in transaction */
165
166         PERF_SAMPLE_BRANCH_MAX          = 1U << 10, /* non-ABI */
167 };
168
169 #define PERF_SAMPLE_BRANCH_PLM_ALL \
170         (PERF_SAMPLE_BRANCH_USER|\
171          PERF_SAMPLE_BRANCH_KERNEL|\
172          PERF_SAMPLE_BRANCH_HV)
173
174 /*
175  * Values to determine ABI of the registers dump.
176  */
177 enum perf_sample_regs_abi {
178         PERF_SAMPLE_REGS_ABI_NONE       = 0,
179         PERF_SAMPLE_REGS_ABI_32         = 1,
180         PERF_SAMPLE_REGS_ABI_64         = 2,
181 };
182
183 /*
184  * The format of the data returned by read() on a perf event fd,
185  * as specified by attr.read_format:
186  *
187  * struct read_format {
188  *      { u64           value;
189  *        { u64         time_enabled; } && PERF_FORMAT_TOTAL_TIME_ENABLED
190  *        { u64         time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING
191  *        { u64         id;           } && PERF_FORMAT_ID
192  *      } && !PERF_FORMAT_GROUP
193  *
194  *      { u64           nr;
195  *        { u64         time_enabled; } && PERF_FORMAT_TOTAL_TIME_ENABLED
196  *        { u64         time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING
197  *        { u64         value;
198  *          { u64       id;           } && PERF_FORMAT_ID
199  *        }             cntr[nr];
200  *      } && PERF_FORMAT_GROUP
201  * };
202  */
203 enum perf_event_read_format {
204         PERF_FORMAT_TOTAL_TIME_ENABLED          = 1U << 0,
205         PERF_FORMAT_TOTAL_TIME_RUNNING          = 1U << 1,
206         PERF_FORMAT_ID                          = 1U << 2,
207         PERF_FORMAT_GROUP                       = 1U << 3,
208
209         PERF_FORMAT_MAX = 1U << 4,              /* non-ABI */
210 };
211
212 #define PERF_ATTR_SIZE_VER0     64      /* sizeof first published struct */
213 #define PERF_ATTR_SIZE_VER1     72      /* add: config2 */
214 #define PERF_ATTR_SIZE_VER2     80      /* add: branch_sample_type */
215 #define PERF_ATTR_SIZE_VER3     96      /* add: sample_regs_user */
216                                         /* add: sample_stack_user */
217
218 /*
219  * Hardware event_id to monitor via a performance monitoring event:
220  */
221 struct perf_event_attr {
222
223         /*
224          * Major type: hardware/software/tracepoint/etc.
225          */
226         __u32                   type;
227
228         /*
229          * Size of the attr structure, for fwd/bwd compat.
230          */
231         __u32                   size;
232
233         /*
234          * Type specific configuration information.
235          */
236         __u64                   config;
237
238         union {
239                 __u64           sample_period;
240                 __u64           sample_freq;
241         };
242
243         __u64                   sample_type;
244         __u64                   read_format;
245
246         __u64                   disabled       :  1, /* off by default        */
247                                 inherit        :  1, /* children inherit it   */
248                                 pinned         :  1, /* must always be on PMU */
249                                 exclusive      :  1, /* only group on PMU     */
250                                 exclude_user   :  1, /* don't count user      */
251                                 exclude_kernel :  1, /* ditto kernel          */
252                                 exclude_hv     :  1, /* ditto hypervisor      */
253                                 exclude_idle   :  1, /* don't count when idle */
254                                 mmap           :  1, /* include mmap data     */
255                                 comm           :  1, /* include comm data     */
256                                 freq           :  1, /* use freq, not period  */
257                                 inherit_stat   :  1, /* per task counts       */
258                                 enable_on_exec :  1, /* next exec enables     */
259                                 task           :  1, /* trace fork/exit       */
260                                 watermark      :  1, /* wakeup_watermark      */
261                                 /*
262                                  * precise_ip:
263                                  *
264                                  *  0 - SAMPLE_IP can have arbitrary skid
265                                  *  1 - SAMPLE_IP must have constant skid
266                                  *  2 - SAMPLE_IP requested to have 0 skid
267                                  *  3 - SAMPLE_IP must have 0 skid
268                                  *
269                                  *  See also PERF_RECORD_MISC_EXACT_IP
270                                  */
271                                 precise_ip     :  2, /* skid constraint       */
272                                 mmap_data      :  1, /* non-exec mmap data    */
273                                 sample_id_all  :  1, /* sample_type all events */
274
275                                 exclude_host   :  1, /* don't count in host   */
276                                 exclude_guest  :  1, /* don't count in guest  */
277
278                                 exclude_callchain_kernel : 1, /* exclude kernel callchains */
279                                 exclude_callchain_user   : 1, /* exclude user callchains */
280                                 mmap2          :  1, /* include mmap with inode data     */
281
282                                 __reserved_1   : 40;
283
284         union {
285                 __u32           wakeup_events;    /* wakeup every n events */
286                 __u32           wakeup_watermark; /* bytes before wakeup   */
287         };
288
289         __u32                   bp_type;
290         union {
291                 __u64           bp_addr;
292                 __u64           config1; /* extension of config */
293         };
294         union {
295                 __u64           bp_len;
296                 __u64           config2; /* extension of config1 */
297         };
298         __u64   branch_sample_type; /* enum perf_branch_sample_type */
299
300         /*
301          * Defines set of user regs to dump on samples.
302          * See asm/perf_regs.h for details.
303          */
304         __u64   sample_regs_user;
305
306         /*
307          * Defines size of the user stack to dump on samples.
308          */
309         __u32   sample_stack_user;
310
311         /* Align to u64. */
312         __u32   __reserved_2;
313 };
314
315 #define perf_flags(attr)        (*(&(attr)->read_format + 1))
316
317 /*
318  * Ioctls that can be done on a perf event fd:
319  */
320 #define PERF_EVENT_IOC_ENABLE           _IO ('$', 0)
321 #define PERF_EVENT_IOC_DISABLE          _IO ('$', 1)
322 #define PERF_EVENT_IOC_REFRESH          _IO ('$', 2)
323 #define PERF_EVENT_IOC_RESET            _IO ('$', 3)
324 #define PERF_EVENT_IOC_PERIOD           _IOW('$', 4, __u64)
325 #define PERF_EVENT_IOC_SET_OUTPUT       _IO ('$', 5)
326 #define PERF_EVENT_IOC_SET_FILTER       _IOW('$', 6, char *)
327 #define PERF_EVENT_IOC_ID               _IOR('$', 7, __u64 *)
328
329 enum perf_event_ioc_flags {
330         PERF_IOC_FLAG_GROUP             = 1U << 0,
331 };
332
333 /*
334  * Structure of the page that can be mapped via mmap
335  */
336 struct perf_event_mmap_page {
337         __u32   version;                /* version number of this structure */
338         __u32   compat_version;         /* lowest version this is compat with */
339
340         /*
341          * Bits needed to read the hw events in user-space.
342          *
343          *   u32 seq, time_mult, time_shift, idx, width;
344          *   u64 count, enabled, running;
345          *   u64 cyc, time_offset;
346          *   s64 pmc = 0;
347          *
348          *   do {
349          *     seq = pc->lock;
350          *     barrier()
351          *
352          *     enabled = pc->time_enabled;
353          *     running = pc->time_running;
354          *
355          *     if (pc->cap_usr_time && enabled != running) {
356          *       cyc = rdtsc();
357          *       time_offset = pc->time_offset;
358          *       time_mult   = pc->time_mult;
359          *       time_shift  = pc->time_shift;
360          *     }
361          *
362          *     idx = pc->index;
363          *     count = pc->offset;
364          *     if (pc->cap_usr_rdpmc && idx) {
365          *       width = pc->pmc_width;
366          *       pmc = rdpmc(idx - 1);
367          *     }
368          *
369          *     barrier();
370          *   } while (pc->lock != seq);
371          *
372          * NOTE: for obvious reason this only works on self-monitoring
373          *       processes.
374          */
375         __u32   lock;                   /* seqlock for synchronization */
376         __u32   index;                  /* hardware event identifier */
377         __s64   offset;                 /* add to hardware event value */
378         __u64   time_enabled;           /* time event active */
379         __u64   time_running;           /* time event on cpu */
380         union {
381                 __u64   capabilities;
382                 struct {
383                         __u64   cap_bit0                : 1, /* Always 0, deprecated, see commit 860f085b74e9 */
384                                 cap_bit0_is_deprecated  : 1, /* Always 1, signals that bit 0 is zero */
385
386                                 cap_user_rdpmc          : 1, /* The RDPMC instruction can be used to read counts */
387                                 cap_user_time           : 1, /* The time_* fields are used */
388                                 cap_user_time_zero      : 1, /* The time_zero field is used */
389                                 cap_____res             : 59;
390                 };
391         };
392
393         /*
394          * If cap_usr_rdpmc this field provides the bit-width of the value
395          * read using the rdpmc() or equivalent instruction. This can be used
396          * to sign extend the result like:
397          *
398          *   pmc <<= 64 - width;
399          *   pmc >>= 64 - width; // signed shift right
400          *   count += pmc;
401          */
402         __u16   pmc_width;
403
404         /*
405          * If cap_usr_time the below fields can be used to compute the time
406          * delta since time_enabled (in ns) using rdtsc or similar.
407          *
408          *   u64 quot, rem;
409          *   u64 delta;
410          *
411          *   quot = (cyc >> time_shift);
412          *   rem = cyc & ((1 << time_shift) - 1);
413          *   delta = time_offset + quot * time_mult +
414          *              ((rem * time_mult) >> time_shift);
415          *
416          * Where time_offset,time_mult,time_shift and cyc are read in the
417          * seqcount loop described above. This delta can then be added to
418          * enabled and possible running (if idx), improving the scaling:
419          *
420          *   enabled += delta;
421          *   if (idx)
422          *     running += delta;
423          *
424          *   quot = count / running;
425          *   rem  = count % running;
426          *   count = quot * enabled + (rem * enabled) / running;
427          */
428         __u16   time_shift;
429         __u32   time_mult;
430         __u64   time_offset;
431         /*
432          * If cap_usr_time_zero, the hardware clock (e.g. TSC) can be calculated
433          * from sample timestamps.
434          *
435          *   time = timestamp - time_zero;
436          *   quot = time / time_mult;
437          *   rem  = time % time_mult;
438          *   cyc = (quot << time_shift) + (rem << time_shift) / time_mult;
439          *
440          * And vice versa:
441          *
442          *   quot = cyc >> time_shift;
443          *   rem  = cyc & ((1 << time_shift) - 1);
444          *   timestamp = time_zero + quot * time_mult +
445          *               ((rem * time_mult) >> time_shift);
446          */
447         __u64   time_zero;
448         __u32   size;                   /* Header size up to __reserved[] fields. */
449
450                 /*
451                  * Hole for extension of the self monitor capabilities
452                  */
453
454         __u8    __reserved[118*8+4];    /* align to 1k. */
455
456         /*
457          * Control data for the mmap() data buffer.
458          *
459          * User-space reading the @data_head value should issue an rmb(), on
460          * SMP capable platforms, after reading this value -- see
461          * perf_event_wakeup().
462          *
463          * When the mapping is PROT_WRITE the @data_tail value should be
464          * written by userspace to reflect the last read data. In this case
465          * the kernel will not over-write unread data.
466          */
467         __u64   data_head;              /* head in the data section */
468         __u64   data_tail;              /* user-space written tail */
469 };
470
471 #define PERF_RECORD_MISC_CPUMODE_MASK           (7 << 0)
472 #define PERF_RECORD_MISC_CPUMODE_UNKNOWN        (0 << 0)
473 #define PERF_RECORD_MISC_KERNEL                 (1 << 0)
474 #define PERF_RECORD_MISC_USER                   (2 << 0)
475 #define PERF_RECORD_MISC_HYPERVISOR             (3 << 0)
476 #define PERF_RECORD_MISC_GUEST_KERNEL           (4 << 0)
477 #define PERF_RECORD_MISC_GUEST_USER             (5 << 0)
478
479 #define PERF_RECORD_MISC_MMAP_DATA              (1 << 13)
480 /*
481  * Indicates that the content of PERF_SAMPLE_IP points to
482  * the actual instruction that triggered the event. See also
483  * perf_event_attr::precise_ip.
484  */
485 #define PERF_RECORD_MISC_EXACT_IP               (1 << 14)
486 /*
487  * Reserve the last bit to indicate some extended misc field
488  */
489 #define PERF_RECORD_MISC_EXT_RESERVED           (1 << 15)
490
491 struct perf_event_header {
492         __u32   type;
493         __u16   misc;
494         __u16   size;
495 };
496
497 enum perf_event_type {
498
499         /*
500          * If perf_event_attr.sample_id_all is set then all event types will
501          * have the sample_type selected fields related to where/when
502          * (identity) an event took place (TID, TIME, ID, STREAM_ID, CPU,
503          * IDENTIFIER) described in PERF_RECORD_SAMPLE below, it will be stashed
504          * just after the perf_event_header and the fields already present for
505          * the existing fields, i.e. at the end of the payload. That way a newer
506          * perf.data file will be supported by older perf tools, with these new
507          * optional fields being ignored.
508          *
509          * struct sample_id {
510          *      { u32                   pid, tid; } && PERF_SAMPLE_TID
511          *      { u64                   time;     } && PERF_SAMPLE_TIME
512          *      { u64                   id;       } && PERF_SAMPLE_ID
513          *      { u64                   stream_id;} && PERF_SAMPLE_STREAM_ID
514          *      { u32                   cpu, res; } && PERF_SAMPLE_CPU
515          *      { u64                   id;       } && PERF_SAMPLE_IDENTIFIER
516          * } && perf_event_attr::sample_id_all
517          *
518          * Note that PERF_SAMPLE_IDENTIFIER duplicates PERF_SAMPLE_ID.  The
519          * advantage of PERF_SAMPLE_IDENTIFIER is that its position is fixed
520          * relative to header.size.
521          */
522
523         /*
524          * The MMAP events record the PROT_EXEC mappings so that we can
525          * correlate userspace IPs to code. They have the following structure:
526          *
527          * struct {
528          *      struct perf_event_header        header;
529          *
530          *      u32                             pid, tid;
531          *      u64                             addr;
532          *      u64                             len;
533          *      u64                             pgoff;
534          *      char                            filename[];
535          *      struct sample_id                sample_id;
536          * };
537          */
538         PERF_RECORD_MMAP                        = 1,
539
540         /*
541          * struct {
542          *      struct perf_event_header        header;
543          *      u64                             id;
544          *      u64                             lost;
545          *      struct sample_id                sample_id;
546          * };
547          */
548         PERF_RECORD_LOST                        = 2,
549
550         /*
551          * struct {
552          *      struct perf_event_header        header;
553          *
554          *      u32                             pid, tid;
555          *      char                            comm[];
556          *      struct sample_id                sample_id;
557          * };
558          */
559         PERF_RECORD_COMM                        = 3,
560
561         /*
562          * struct {
563          *      struct perf_event_header        header;
564          *      u32                             pid, ppid;
565          *      u32                             tid, ptid;
566          *      u64                             time;
567          *      struct sample_id                sample_id;
568          * };
569          */
570         PERF_RECORD_EXIT                        = 4,
571
572         /*
573          * struct {
574          *      struct perf_event_header        header;
575          *      u64                             time;
576          *      u64                             id;
577          *      u64                             stream_id;
578          *      struct sample_id                sample_id;
579          * };
580          */
581         PERF_RECORD_THROTTLE                    = 5,
582         PERF_RECORD_UNTHROTTLE                  = 6,
583
584         /*
585          * struct {
586          *      struct perf_event_header        header;
587          *      u32                             pid, ppid;
588          *      u32                             tid, ptid;
589          *      u64                             time;
590          *      struct sample_id                sample_id;
591          * };
592          */
593         PERF_RECORD_FORK                        = 7,
594
595         /*
596          * struct {
597          *      struct perf_event_header        header;
598          *      u32                             pid, tid;
599          *
600          *      struct read_format              values;
601          *      struct sample_id                sample_id;
602          * };
603          */
604         PERF_RECORD_READ                        = 8,
605
606         /*
607          * struct {
608          *      struct perf_event_header        header;
609          *
610          *      #
611          *      # Note that PERF_SAMPLE_IDENTIFIER duplicates PERF_SAMPLE_ID.
612          *      # The advantage of PERF_SAMPLE_IDENTIFIER is that its position
613          *      # is fixed relative to header.
614          *      #
615          *
616          *      { u64                   id;       } && PERF_SAMPLE_IDENTIFIER
617          *      { u64                   ip;       } && PERF_SAMPLE_IP
618          *      { u32                   pid, tid; } && PERF_SAMPLE_TID
619          *      { u64                   time;     } && PERF_SAMPLE_TIME
620          *      { u64                   addr;     } && PERF_SAMPLE_ADDR
621          *      { u64                   id;       } && PERF_SAMPLE_ID
622          *      { u64                   stream_id;} && PERF_SAMPLE_STREAM_ID
623          *      { u32                   cpu, res; } && PERF_SAMPLE_CPU
624          *      { u64                   period;   } && PERF_SAMPLE_PERIOD
625          *
626          *      { struct read_format    values;   } && PERF_SAMPLE_READ
627          *
628          *      { u64                   nr,
629          *        u64                   ips[nr];  } && PERF_SAMPLE_CALLCHAIN
630          *
631          *      #
632          *      # The RAW record below is opaque data wrt the ABI
633          *      #
634          *      # That is, the ABI doesn't make any promises wrt to
635          *      # the stability of its content, it may vary depending
636          *      # on event, hardware, kernel version and phase of
637          *      # the moon.
638          *      #
639          *      # In other words, PERF_SAMPLE_RAW contents are not an ABI.
640          *      #
641          *
642          *      { u32                   size;
643          *        char                  data[size];}&& PERF_SAMPLE_RAW
644          *
645          *      { u64                   nr;
646          *        { u64 from, to, flags } lbr[nr];} && PERF_SAMPLE_BRANCH_STACK
647          *
648          *      { u64                   abi; # enum perf_sample_regs_abi
649          *        u64                   regs[weight(mask)]; } && PERF_SAMPLE_REGS_USER
650          *
651          *      { u64                   size;
652          *        char                  data[size];
653          *        u64                   dyn_size; } && PERF_SAMPLE_STACK_USER
654          *
655          *      { u64                   weight;   } && PERF_SAMPLE_WEIGHT
656          *      { u64                   data_src; } && PERF_SAMPLE_DATA_SRC
657          * };
658          */
659         PERF_RECORD_SAMPLE                      = 9,
660
661         /*
662          * The MMAP2 records are an augmented version of MMAP, they add
663          * maj, min, ino numbers to be used to uniquely identify each mapping
664          *
665          * struct {
666          *      struct perf_event_header        header;
667          *
668          *      u32                             pid, tid;
669          *      u64                             addr;
670          *      u64                             len;
671          *      u64                             pgoff;
672          *      u32                             maj;
673          *      u32                             min;
674          *      u64                             ino;
675          *      u64                             ino_generation;
676          *      char                            filename[];
677          *      struct sample_id                sample_id;
678          * };
679          */
680         PERF_RECORD_MMAP2                       = 10,
681
682         PERF_RECORD_MAX,                        /* non-ABI */
683 };
684
685 #define PERF_MAX_STACK_DEPTH            127
686
687 enum perf_callchain_context {
688         PERF_CONTEXT_HV                 = (__u64)-32,
689         PERF_CONTEXT_KERNEL             = (__u64)-128,
690         PERF_CONTEXT_USER               = (__u64)-512,
691
692         PERF_CONTEXT_GUEST              = (__u64)-2048,
693         PERF_CONTEXT_GUEST_KERNEL       = (__u64)-2176,
694         PERF_CONTEXT_GUEST_USER         = (__u64)-2560,
695
696         PERF_CONTEXT_MAX                = (__u64)-4095,
697 };
698
699 #define PERF_FLAG_FD_NO_GROUP           (1U << 0)
700 #define PERF_FLAG_FD_OUTPUT             (1U << 1)
701 #define PERF_FLAG_PID_CGROUP            (1U << 2) /* pid=cgroup id, per-cpu mode only */
702
703 union perf_mem_data_src {
704         __u64 val;
705         struct {
706                 __u64   mem_op:5,       /* type of opcode */
707                         mem_lvl:14,     /* memory hierarchy level */
708                         mem_snoop:5,    /* snoop mode */
709                         mem_lock:2,     /* lock instr */
710                         mem_dtlb:7,     /* tlb access */
711                         mem_rsvd:31;
712         };
713 };
714
715 /* type of opcode (load/store/prefetch,code) */
716 #define PERF_MEM_OP_NA          0x01 /* not available */
717 #define PERF_MEM_OP_LOAD        0x02 /* load instruction */
718 #define PERF_MEM_OP_STORE       0x04 /* store instruction */
719 #define PERF_MEM_OP_PFETCH      0x08 /* prefetch */
720 #define PERF_MEM_OP_EXEC        0x10 /* code (execution) */
721 #define PERF_MEM_OP_SHIFT       0
722
723 /* memory hierarchy (memory level, hit or miss) */
724 #define PERF_MEM_LVL_NA         0x01  /* not available */
725 #define PERF_MEM_LVL_HIT        0x02  /* hit level */
726 #define PERF_MEM_LVL_MISS       0x04  /* miss level  */
727 #define PERF_MEM_LVL_L1         0x08  /* L1 */
728 #define PERF_MEM_LVL_LFB        0x10  /* Line Fill Buffer */
729 #define PERF_MEM_LVL_L2         0x20  /* L2 */
730 #define PERF_MEM_LVL_L3         0x40  /* L3 */
731 #define PERF_MEM_LVL_LOC_RAM    0x80  /* Local DRAM */
732 #define PERF_MEM_LVL_REM_RAM1   0x100 /* Remote DRAM (1 hop) */
733 #define PERF_MEM_LVL_REM_RAM2   0x200 /* Remote DRAM (2 hops) */
734 #define PERF_MEM_LVL_REM_CCE1   0x400 /* Remote Cache (1 hop) */
735 #define PERF_MEM_LVL_REM_CCE2   0x800 /* Remote Cache (2 hops) */
736 #define PERF_MEM_LVL_IO         0x1000 /* I/O memory */
737 #define PERF_MEM_LVL_UNC        0x2000 /* Uncached memory */
738 #define PERF_MEM_LVL_SHIFT      5
739
740 /* snoop mode */
741 #define PERF_MEM_SNOOP_NA       0x01 /* not available */
742 #define PERF_MEM_SNOOP_NONE     0x02 /* no snoop */
743 #define PERF_MEM_SNOOP_HIT      0x04 /* snoop hit */
744 #define PERF_MEM_SNOOP_MISS     0x08 /* snoop miss */
745 #define PERF_MEM_SNOOP_HITM     0x10 /* snoop hit modified */
746 #define PERF_MEM_SNOOP_SHIFT    19
747
748 /* locked instruction */
749 #define PERF_MEM_LOCK_NA        0x01 /* not available */
750 #define PERF_MEM_LOCK_LOCKED    0x02 /* locked transaction */
751 #define PERF_MEM_LOCK_SHIFT     24
752
753 /* TLB access */
754 #define PERF_MEM_TLB_NA         0x01 /* not available */
755 #define PERF_MEM_TLB_HIT        0x02 /* hit level */
756 #define PERF_MEM_TLB_MISS       0x04 /* miss level */
757 #define PERF_MEM_TLB_L1         0x08 /* L1 */
758 #define PERF_MEM_TLB_L2         0x10 /* L2 */
759 #define PERF_MEM_TLB_WK         0x20 /* Hardware Walker*/
760 #define PERF_MEM_TLB_OS         0x40 /* OS fault handler */
761 #define PERF_MEM_TLB_SHIFT      26
762
763 #define PERF_MEM_S(a, s) \
764         (((u64)PERF_MEM_##a##_##s) << PERF_MEM_##a##_SHIFT)
765
766 /*
767  * single taken branch record layout:
768  *
769  *      from: source instruction (may not always be a branch insn)
770  *        to: branch target
771  *   mispred: branch target was mispredicted
772  * predicted: branch target was predicted
773  *
774  * support for mispred, predicted is optional. In case it
775  * is not supported mispred = predicted = 0.
776  *
777  *     in_tx: running in a hardware transaction
778  *     abort: aborting a hardware transaction
779  */
780 struct perf_branch_entry {
781         __u64   from;
782         __u64   to;
783         __u64   mispred:1,  /* target mispredicted */
784                 predicted:1,/* target predicted */
785                 in_tx:1,    /* in transaction */
786                 abort:1,    /* transaction abort */
787                 reserved:60;
788 };
789
790 #endif /* _UAPI_LINUX_PERF_EVENT_H */