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
 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         PERF_SAMPLE_WEIGHT                      = 1U << 14,
 136         PERF_SAMPLE_DATA_SRC                    = 1U << 15,
 137
 138         PERF_SAMPLE_MAX = 1U << 16,             /* non-ABI */
 139 };
 140
 141 /*
 142  * values to program into branch_sample_type when PERF_SAMPLE_BRANCH is set
 143  *
 144  * If the user does not pass priv level information via branch_sample_type,
 145  * the kernel uses the event's priv level. Branch and event priv levels do
 146  * not have to match. Branch priv level is checked for permissions.
 147  *
 148  * The branch types can be combined, however BRANCH_ANY covers all types
 149  * of branches and therefore it supersedes all the other types.
 150  */
 151 enum perf_branch_sample_type {
 152         PERF_SAMPLE_BRANCH_USER         = 1U << 0, /* user branches */
 153         PERF_SAMPLE_BRANCH_KERNEL       = 1U << 1, /* kernel branches */
 154         PERF_SAMPLE_BRANCH_HV           = 1U << 2, /* hypervisor branches */
 155
 156         PERF_SAMPLE_BRANCH_ANY          = 1U << 3, /* any branch types */
 157         PERF_SAMPLE_BRANCH_ANY_CALL     = 1U << 4, /* any call branch */
 158         PERF_SAMPLE_BRANCH_ANY_RETURN   = 1U << 5, /* any return branch */
 159         PERF_SAMPLE_BRANCH_IND_CALL     = 1U << 6, /* indirect calls */
 160
 161         PERF_SAMPLE_BRANCH_MAX          = 1U << 7, /* non-ABI */
 162 };
 163
 164 #define PERF_SAMPLE_BRANCH_PLM_ALL \
 165         (PERF_SAMPLE_BRANCH_USER|\
 166          PERF_SAMPLE_BRANCH_KERNEL|\
 167          PERF_SAMPLE_BRANCH_HV)
 168
 169 /*
 170  * Values to determine ABI of the registers dump.
 171  */
 172 enum perf_sample_regs_abi {
 173         PERF_SAMPLE_REGS_ABI_NONE       = 0,
 174         PERF_SAMPLE_REGS_ABI_32         = 1,
 175         PERF_SAMPLE_REGS_ABI_64         = 2,
 176 };
 177
 178 /*
 179  * The format of the data returned by read() on a perf event fd,
 180  * as specified by attr.read_format:
 181  *
 182  * struct read_format {
 183  *      { u64           value;
 184  *        { u64         time_enabled; } && PERF_FORMAT_TOTAL_TIME_ENABLED
 185  *        { u64         time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING
 186  *        { u64         id;           } && PERF_FORMAT_ID
 187  *      } && !PERF_FORMAT_GROUP
 188  *
 189  *      { u64           nr;
 190  *        { u64         time_enabled; } && PERF_FORMAT_TOTAL_TIME_ENABLED
 191  *        { u64         time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING
 192  *        { u64         value;
 193  *          { u64       id;           } && PERF_FORMAT_ID
 194  *        }             cntr[nr];
 195  *      } && PERF_FORMAT_GROUP
 196  * };
 197  */
 198 enum perf_event_read_format {
 199         PERF_FORMAT_TOTAL_TIME_ENABLED          = 1U << 0,
 200         PERF_FORMAT_TOTAL_TIME_RUNNING          = 1U << 1,
 201         PERF_FORMAT_ID                          = 1U << 2,
 202         PERF_FORMAT_GROUP                       = 1U << 3,
 203
 204         PERF_FORMAT_MAX = 1U << 4,              /* non-ABI */
 205 };
 206
 207 #define PERF_ATTR_SIZE_VER0     64      /* sizeof first published struct */
 208 #define PERF_ATTR_SIZE_VER1     72      /* add: config2 */
 209 #define PERF_ATTR_SIZE_VER2     80      /* add: branch_sample_type */
 210 #define PERF_ATTR_SIZE_VER3     96      /* add: sample_regs_user */
 211                                         /* add: sample_stack_user */
 212
 213 /*
 214  * Hardware event_id to monitor via a performance monitoring event:
 215  */
 216 struct perf_event_attr {
 217
 218         /*
 219          * Major type: hardware/software/tracepoint/etc.
 220          */
 221         __u32                   type;
 222
 223         /*
 224          * Size of the attr structure, for fwd/bwd compat.
 225          */
 226         __u32                   size;
 227
 228         /*
 229          * Type specific configuration information.
 230          */
 231         __u64                   config;
 232
 233         union {
 234                 __u64           sample_period;
 235                 __u64           sample_freq;
 236         };
 237
 238         __u64                   sample_type;
 239         __u64                   read_format;
 240
 241         __u64                   disabled       :  1, /* off by default        */
 242                                 inherit        :  1, /* children inherit it   */
 243                                 pinned         :  1, /* must always be on PMU */
 244                                 exclusive      :  1, /* only group on PMU     */
 245                                 exclude_user   :  1, /* don't count user      */
 246                                 exclude_kernel :  1, /* ditto kernel          */
 247                                 exclude_hv     :  1, /* ditto hypervisor      */
 248                                 exclude_idle   :  1, /* don't count when idle */
 249                                 mmap           :  1, /* include mmap data     */
 250                                 comm           :  1, /* include comm data     */
 251                                 freq           :  1, /* use freq, not period  */
 252                                 inherit_stat   :  1, /* per task counts       */
 253                                 enable_on_exec :  1, /* next exec enables     */
 254                                 task           :  1, /* trace fork/exit       */
 255                                 watermark      :  1, /* wakeup_watermark      */
 256                                 /*
 257                                  * precise_ip:
 258                                  *
 259                                  *  0 - SAMPLE_IP can have arbitrary skid
 260                                  *  1 - SAMPLE_IP must have constant skid
 261                                  *  2 - SAMPLE_IP requested to have 0 skid
 262                                  *  3 - SAMPLE_IP must have 0 skid
 263                                  *
 264                                  *  See also PERF_RECORD_MISC_EXACT_IP
 265                                  */
 266                                 precise_ip     :  2, /* skid constraint       */
 267                                 mmap_data      :  1, /* non-exec mmap data    */
 268                                 sample_id_all  :  1, /* sample_type all events */
 269
 270                                 exclude_host   :  1, /* don't count in host   */
 271                                 exclude_guest  :  1, /* don't count in guest  */
 272
 273                                 exclude_callchain_kernel : 1, /* exclude kernel callchains */
 274                                 exclude_callchain_user   : 1, /* exclude user callchains */
 275
 276                                 __reserved_1   : 41;
 277
 278         union {
 279                 __u32           wakeup_events;    /* wakeup every n events */
 280                 __u32           wakeup_watermark; /* bytes before wakeup   */
 281         };
 282
 283         __u32                   bp_type;
 284         union {
 285                 __u64           bp_addr;
 286                 __u64           config1; /* extension of config */
 287         };
 288         union {
 289                 __u64           bp_len;
 290                 __u64           config2; /* extension of config1 */
 291         };
 292         __u64   branch_sample_type; /* enum perf_branch_sample_type */
 293
 294         /*
 295          * Defines set of user regs to dump on samples.
 296          * See asm/perf_regs.h for details.
 297          */
 298         __u64   sample_regs_user;
 299
 300         /*
 301          * Defines size of the user stack to dump on samples.
 302          */
 303         __u32   sample_stack_user;
 304
 305         /* Align to u64. */
 306         __u32   __reserved_2;
 307 };
 308
 309 #define perf_flags(attr)        (*(&(attr)->read_format + 1))
 310
 311 /*
 312  * Ioctls that can be done on a perf event fd:
 313  */
 314 #define PERF_EVENT_IOC_ENABLE           _IO ('$', 0)
 315 #define PERF_EVENT_IOC_DISABLE          _IO ('$', 1)
 316 #define PERF_EVENT_IOC_REFRESH          _IO ('$', 2)
 317 #define PERF_EVENT_IOC_RESET            _IO ('$', 3)
 318 #define PERF_EVENT_IOC_PERIOD           _IOW('$', 4, __u64)
 319 #define PERF_EVENT_IOC_SET_OUTPUT       _IO ('$', 5)
 320 #define PERF_EVENT_IOC_SET_FILTER       _IOW('$', 6, char *)
 321
 322 enum perf_event_ioc_flags {
 323         PERF_IOC_FLAG_GROUP             = 1U << 0,
 324 };
 325
 326 /*
 327  * Structure of the page that can be mapped via mmap
 328  */
 329 struct perf_event_mmap_page {
 330         __u32   version;                /* version number of this structure */
 331         __u32   compat_version;         /* lowest version this is compat with */
 332
 333         /*
 334          * Bits needed to read the hw events in user-space.
 335          *
 336          *   u32 seq, time_mult, time_shift, idx, width;
 337          *   u64 count, enabled, running;
 338          *   u64 cyc, time_offset;
 339          *   s64 pmc = 0;
 340          *
 341          *   do {
 342          *     seq = pc->lock;
 343          *     barrier()
 344          *
 345          *     enabled = pc->time_enabled;
 346          *     running = pc->time_running;
 347          *
 348          *     if (pc->cap_usr_time && enabled != running) {
 349          *       cyc = rdtsc();
 350          *       time_offset = pc->time_offset;
 351          *       time_mult   = pc->time_mult;
 352          *       time_shift  = pc->time_shift;
 353          *     }
 354          *
 355          *     idx = pc->index;
 356          *     count = pc->offset;
 357          *     if (pc->cap_usr_rdpmc && idx) {
 358          *       width = pc->pmc_width;
 359          *       pmc = rdpmc(idx - 1);
 360          *     }
 361          *
 362          *     barrier();
 363          *   } while (pc->lock != seq);
 364          *
 365          * NOTE: for obvious reason this only works on self-monitoring
 366          *       processes.
 367          */
 368         __u32   lock;                   /* seqlock for synchronization */
 369         __u32   index;                  /* hardware event identifier */
 370         __s64   offset;                 /* add to hardware event value */
 371         __u64   time_enabled;           /* time event active */
 372         __u64   time_running;           /* time event on cpu */
 373         union {
 374                 __u64   capabilities;
 375                 __u64   cap_usr_time  : 1,
 376                         cap_usr_rdpmc : 1,
 377                         cap_____res   : 62;
 378         };
 379
 380         /*
 381          * If cap_usr_rdpmc this field provides the bit-width of the value
 382          * read using the rdpmc() or equivalent instruction. This can be used
 383          * to sign extend the result like:
 384          *
 385          *   pmc <<= 64 - width;
 386          *   pmc >>= 64 - width; // signed shift right
 387          *   count += pmc;
 388          */
 389         __u16   pmc_width;
 390
 391         /*
 392          * If cap_usr_time the below fields can be used to compute the time
 393          * delta since time_enabled (in ns) using rdtsc or similar.
 394          *
 395          *   u64 quot, rem;
 396          *   u64 delta;
 397          *
 398          *   quot = (cyc >> time_shift);
 399          *   rem = cyc & ((1 << time_shift) - 1);
 400          *   delta = time_offset + quot * time_mult +
 401          *              ((rem * time_mult) >> time_shift);
 402          *
 403          * Where time_offset,time_mult,time_shift and cyc are read in the
 404          * seqcount loop described above. This delta can then be added to
 405          * enabled and possible running (if idx), improving the scaling:
 406          *
 407          *   enabled += delta;
 408          *   if (idx)
 409          *     running += delta;
 410          *
 411          *   quot = count / running;
 412          *   rem  = count % running;
 413          *   count = quot * enabled + (rem * enabled) / running;
 414          */
 415         __u16   time_shift;
 416         __u32   time_mult;
 417         __u64   time_offset;
 418
 419                 /*
 420                  * Hole for extension of the self monitor capabilities
 421                  */
 422
 423         __u64   __reserved[120];        /* align to 1k */
 424
 425         /*
 426          * Control data for the mmap() data buffer.
 427          *
 428          * User-space reading the @data_head value should issue an rmb(), on
 429          * SMP capable platforms, after reading this value -- see
 430          * perf_event_wakeup().
 431          *
 432          * When the mapping is PROT_WRITE the @data_tail value should be
 433          * written by userspace to reflect the last read data. In this case
 434          * the kernel will not over-write unread data.
 435          */
 436         __u64   data_head;              /* head in the data section */
 437         __u64   data_tail;              /* user-space written tail */
 438 };
 439
 440 #define PERF_RECORD_MISC_CPUMODE_MASK           (7 << 0)
 441 #define PERF_RECORD_MISC_CPUMODE_UNKNOWN        (0 << 0)
 442 #define PERF_RECORD_MISC_KERNEL                 (1 << 0)
 443 #define PERF_RECORD_MISC_USER                   (2 << 0)
 444 #define PERF_RECORD_MISC_HYPERVISOR             (3 << 0)
 445 #define PERF_RECORD_MISC_GUEST_KERNEL           (4 << 0)
 446 #define PERF_RECORD_MISC_GUEST_USER             (5 << 0)
 447
 448 #define PERF_RECORD_MISC_MMAP_DATA              (1 << 13)
 449 /*
 450  * Indicates that the content of PERF_SAMPLE_IP points to
 451  * the actual instruction that triggered the event. See also
 452  * perf_event_attr::precise_ip.
 453  */
 454 #define PERF_RECORD_MISC_EXACT_IP               (1 << 14)
 455 /*
 456  * Reserve the last bit to indicate some extended misc field
 457  */
 458 #define PERF_RECORD_MISC_EXT_RESERVED           (1 << 15)
 459
 460 struct perf_event_header {
 461         __u32   type;
 462         __u16   misc;
 463         __u16   size;
 464 };
 465
 466 enum perf_event_type {
 467
 468         /*
 469          * If perf_event_attr.sample_id_all is set then all event types will
 470          * have the sample_type selected fields related to where/when
 471          * (identity) an event took place (TID, TIME, ID, CPU, STREAM_ID)
 472          * described in PERF_RECORD_SAMPLE below, it will be stashed just after
 473          * the perf_event_header and the fields already present for the existing
 474          * fields, i.e. at the end of the payload. That way a newer perf.data
 475          * file will be supported by older perf tools, with these new optional
 476          * fields being ignored.
 477          *
 478          * The MMAP events record the PROT_EXEC mappings so that we can
 479          * correlate userspace IPs to code. They have the following structure:
 480          *
 481          * struct {
 482          *      struct perf_event_header        header;
 483          *
 484          *      u32                             pid, tid;
 485          *      u64                             addr;
 486          *      u64                             len;
 487          *      u64                             pgoff;
 488          *      char                            filename[];
 489          * };
 490          */
 491         PERF_RECORD_MMAP                        = 1,
 492
 493         /*
 494          * struct {
 495          *      struct perf_event_header        header;
 496          *      u64                             id;
 497          *      u64                             lost;
 498          * };
 499          */
 500         PERF_RECORD_LOST                        = 2,
 501
 502         /*
 503          * struct {
 504          *      struct perf_event_header        header;
 505          *
 506          *      u32                             pid, tid;
 507          *      char                            comm[];
 508          * };
 509          */
 510         PERF_RECORD_COMM                        = 3,
 511
 512         /*
 513          * struct {
 514          *      struct perf_event_header        header;
 515          *      u32                             pid, ppid;
 516          *      u32                             tid, ptid;
 517          *      u64                             time;
 518          * };
 519          */
 520         PERF_RECORD_EXIT                        = 4,
 521
 522         /*
 523          * struct {
 524          *      struct perf_event_header        header;
 525          *      u64                             time;
 526          *      u64                             id;
 527          *      u64                             stream_id;
 528          * };
 529          */
 530         PERF_RECORD_THROTTLE                    = 5,
 531         PERF_RECORD_UNTHROTTLE                  = 6,
 532
 533         /*
 534          * struct {
 535          *      struct perf_event_header        header;
 536          *      u32                             pid, ppid;
 537          *      u32                             tid, ptid;
 538          *      u64                             time;
 539          * };
 540          */
 541         PERF_RECORD_FORK                        = 7,
 542
 543         /*
 544          * struct {
 545          *      struct perf_event_header        header;
 546          *      u32                             pid, tid;
 547          *
 548          *      struct read_format              values;
 549          * };
 550          */
 551         PERF_RECORD_READ                        = 8,
 552
 553         /*
 554          * struct {
 555          *      struct perf_event_header        header;
 556          *
 557          *      { u64                   ip;       } && PERF_SAMPLE_IP
 558          *      { u32                   pid, tid; } && PERF_SAMPLE_TID
 559          *      { u64                   time;     } && PERF_SAMPLE_TIME
 560          *      { u64                   addr;     } && PERF_SAMPLE_ADDR
 561          *      { u64                   id;       } && PERF_SAMPLE_ID
 562          *      { u64                   stream_id;} && PERF_SAMPLE_STREAM_ID
 563          *      { u32                   cpu, res; } && PERF_SAMPLE_CPU
 564          *      { u64                   period;   } && PERF_SAMPLE_PERIOD
 565          *
 566          *      { struct read_format    values;   } && PERF_SAMPLE_READ
 567          *
 568          *      { u64                   nr,
 569          *        u64                   ips[nr];  } && PERF_SAMPLE_CALLCHAIN
 570          *
 571          *      #
 572          *      # The RAW record below is opaque data wrt the ABI
 573          *      #
 574          *      # That is, the ABI doesn't make any promises wrt to
 575          *      # the stability of its content, it may vary depending
 576          *      # on event, hardware, kernel version and phase of
 577          *      # the moon.
 578          *      #
 579          *      # In other words, PERF_SAMPLE_RAW contents are not an ABI.
 580          *      #
 581          *
 582          *      { u32                   size;
 583          *        char                  data[size];}&& PERF_SAMPLE_RAW
 584          *
 585          *      { u64                   nr;
 586          *        { u64 from, to, flags } lbr[nr];} && PERF_SAMPLE_BRANCH_STACK
 587          *
 588          *      { u64                   abi; # enum perf_sample_regs_abi
 589          *        u64                   regs[weight(mask)]; } && PERF_SAMPLE_REGS_USER
 590          *
 591          *      { u64                   size;
 592          *        char                  data[size];
 593          *        u64                   dyn_size; } && PERF_SAMPLE_STACK_USER
 594          *
 595          *      { u64                   weight;   } && PERF_SAMPLE_WEIGHT
 596          *      { u64                   data_src;     } && PERF_SAMPLE_DATA_SRC
 597          * };
 598          */
 599         PERF_RECORD_SAMPLE                      = 9,
 600
 601         PERF_RECORD_MAX,                        /* non-ABI */
 602 };
 603
 604 #define PERF_MAX_STACK_DEPTH            127
 605
 606 enum perf_callchain_context {
 607         PERF_CONTEXT_HV                 = (__u64)-32,
 608         PERF_CONTEXT_KERNEL             = (__u64)-128,
 609         PERF_CONTEXT_USER               = (__u64)-512,
 610
 611         PERF_CONTEXT_GUEST              = (__u64)-2048,
 612         PERF_CONTEXT_GUEST_KERNEL       = (__u64)-2176,
 613         PERF_CONTEXT_GUEST_USER         = (__u64)-2560,
 614
 615         PERF_CONTEXT_MAX                = (__u64)-4095,
 616 };
 617
 618 #define PERF_FLAG_FD_NO_GROUP           (1U << 0)
 619 #define PERF_FLAG_FD_OUTPUT             (1U << 1)
 620 #define PERF_FLAG_PID_CGROUP            (1U << 2) /* pid=cgroup id, per-cpu mode only */
 621
 622 union perf_mem_data_src {
 623         __u64 val;
 624         struct {
 625                 __u64   mem_op:5,       /* type of opcode */
 626                         mem_lvl:14,     /* memory hierarchy level */
 627                         mem_snoop:5,    /* snoop mode */
 628                         mem_lock:2,     /* lock instr */
 629                         mem_dtlb:7,     /* tlb access */
 630                         mem_rsvd:31;
 631         };
 632 };
 633
 634 /* type of opcode (load/store/prefetch,code) */
 635 #define PERF_MEM_OP_NA          0x01 /* not available */
 636 #define PERF_MEM_OP_LOAD        0x02 /* load instruction */
 637 #define PERF_MEM_OP_STORE       0x04 /* store instruction */
 638 #define PERF_MEM_OP_PFETCH      0x08 /* prefetch */
 639 #define PERF_MEM_OP_EXEC        0x10 /* code (execution) */
 640 #define PERF_MEM_OP_SHIFT       0
 641
 642 /* memory hierarchy (memory level, hit or miss) */
 643 #define PERF_MEM_LVL_NA         0x01  /* not available */
 644 #define PERF_MEM_LVL_HIT        0x02  /* hit level */
 645 #define PERF_MEM_LVL_MISS       0x04  /* miss level  */
 646 #define PERF_MEM_LVL_L1         0x08  /* L1 */
 647 #define PERF_MEM_LVL_LFB        0x10  /* Line Fill Buffer */
 648 #define PERF_MEM_LVL_L2         0x20  /* L2 */
 649 #define PERF_MEM_LVL_L3         0x40  /* L3 */
 650 #define PERF_MEM_LVL_LOC_RAM    0x80  /* Local DRAM */
 651 #define PERF_MEM_LVL_REM_RAM1   0x100 /* Remote DRAM (1 hop) */
 652 #define PERF_MEM_LVL_REM_RAM2   0x200 /* Remote DRAM (2 hops) */
 653 #define PERF_MEM_LVL_REM_CCE1   0x400 /* Remote Cache (1 hop) */
 654 #define PERF_MEM_LVL_REM_CCE2   0x800 /* Remote Cache (2 hops) */
 655 #define PERF_MEM_LVL_IO         0x1000 /* I/O memory */
 656 #define PERF_MEM_LVL_UNC        0x2000 /* Uncached memory */
 657 #define PERF_MEM_LVL_SHIFT      5
 658
 659 /* snoop mode */
 660 #define PERF_MEM_SNOOP_NA       0x01 /* not available */
 661 #define PERF_MEM_SNOOP_NONE     0x02 /* no snoop */
 662 #define PERF_MEM_SNOOP_HIT      0x04 /* snoop hit */
 663 #define PERF_MEM_SNOOP_MISS     0x08 /* snoop miss */
 664 #define PERF_MEM_SNOOP_HITM     0x10 /* snoop hit modified */
 665 #define PERF_MEM_SNOOP_SHIFT    19
 666
 667 /* locked instruction */
 668 #define PERF_MEM_LOCK_NA        0x01 /* not available */
 669 #define PERF_MEM_LOCK_LOCKED    0x02 /* locked transaction */
 670 #define PERF_MEM_LOCK_SHIFT     24
 671
 672 /* TLB access */
 673 #define PERF_MEM_TLB_NA         0x01 /* not available */
 674 #define PERF_MEM_TLB_HIT        0x02 /* hit level */
 675 #define PERF_MEM_TLB_MISS       0x04 /* miss level */
 676 #define PERF_MEM_TLB_L1         0x08 /* L1 */
 677 #define PERF_MEM_TLB_L2         0x10 /* L2 */
 678 #define PERF_MEM_TLB_WK         0x20 /* Hardware Walker*/
 679 #define PERF_MEM_TLB_OS         0x40 /* OS fault handler */
 680 #define PERF_MEM_TLB_SHIFT      26
 681
 682 #define PERF_MEM_S(a, s) \
 683         (((u64)PERF_MEM_##a##_##s) << PERF_MEM_##a##_SHIFT)
 684
 685 #endif /* _UAPI_LINUX_PERF_EVENT_H */