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perfmon_dfl_smpl.h
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1 /*
2 * Copyright (c) 2005-2006 Hewlett-Packard Development Company, L.P.
3 * Contributed by Stephane Eranian <eranian@hpl.hp.com>
4 *
5 * This file implements the new dfl sampling buffer format
6 * for perfmon2 subsystem.
7 *
8 * This format is supported used by all platforms. For IA-64, older
9 * applications using perfmon v2.0 MUST use the
10 * perfmon_default_smpl.h
11 */
12 #ifndef __PERFMON_DFL_SMPL_H__
13 #define __PERFMON_DFL_SMPL_H__ 1
14
15 #ifdef __cplusplus
16 extern "C" {
17 #endif
18
19 #include <perfmon/perfmon.h>
20
21 #define PFM_DFL_SMPL_NAME "default"
22
23 #ifdef PFMLIB_OLD_PFMV2
24 /*
25 * UUID for compatibility with perfmon v2.2 (used by Cray)
26 */
27 #define PFM_DFL_SMPL_UUID { \
28 0xd1, 0x39, 0xb2, 0x9e, 0x62, 0xe8, 0x40, 0xe4,\
29 0xb4, 0x02, 0x73, 0x07, 0x87, 0x92, 0xe9, 0x37 }
30 #endif
31
32 /*
33 * format specific parameters (passed at context creation)
34 */
35 typedef struct {
36 uint64_t buf_size; /* size of the buffer in bytes */
37 uint32_t buf_flags; /* buffer specific flags */
38 uint32_t res1; /* for future use */
39 uint64_t reserved[6]; /* for future use */
40 } pfm_dfl_smpl_arg_t;
41
42 /*
43 * This header is at the beginning of the sampling buffer returned to the user.
44 * It is directly followed by the first record.
45 */
46 typedef struct {
47 uint64_t hdr_count; /* how many valid entries */
48 uint64_t hdr_cur_offs; /* current offset from top of buffer */
49 uint64_t hdr_overflows; /* #overflows for buffer */
50 uint64_t hdr_buf_size; /* bytes in the buffer */
51 uint64_t hdr_min_buf_space; /* minimal buffer size (internal use) */
52 uint32_t hdr_version; /* smpl format version */
53 uint32_t hdr_buf_flags; /* copy of buf_flags */
54 uint64_t hdr_reserved[10]; /* for future use */
55 } pfm_dfl_smpl_hdr_t;
56
57 /*
58 * Entry header in the sampling buffer. The header is directly followed
59 * with the values of the PMD registers of interest saved in increasing
60 * index order: PMD4, PMD5, and so on. How many PMDs are present depends
61 * on how the session was programmed.
62 *
63 * In the case where multiple counters overflow at the same time, multiple
64 * entries are written consecutively.
65 *
66 * last_reset_value member indicates the initial value of the overflowed PMD.
67 */
68 typedef struct {
69 uint32_t pid; /* thread id (for NPTL, this is gettid()) */
70 uint16_t ovfl_pmd; /* index of pmd that overflowed for this sample */
71 uint16_t reserved; /* for future use */
72 uint64_t last_reset_val; /* initial value of overflowed PMD */
73 uint64_t ip; /* where did the overflow interrupt happened */
74 uint64_t tstamp; /* overflow timetamp */
75 uint16_t cpu; /* cpu on which the overfow occured */
76 uint16_t set; /* event set active when overflow ocurred */
77 uint32_t tgid; /* thread group id (for NPTL, this is getpid()) */
78 } pfm_dfl_smpl_entry_t;
79
80 #define PFM_DFL_SMPL_VERSION_MAJ 1U
81 #define PFM_DFL_SMPL_VERSION_MIN 0U
82 #define PFM_DFL_SMPL_VERSION (((PFM_DFL_SMPL_VERSION_MAJ&0xffff)<<16)|(PFM_DFL_SMPL_VERSION_MIN & 0xffff))
83
84 #ifdef __cplusplus
85 }
86 #endif
87
88 #endif /* __PERFMON_DFL_SMPL_H__ */
pfm_dfl_smpl_arg_t::buf_size
uint64_t buf_size
Definition: perfmon_dfl_smpl.h:36
pfm_dfl_smpl_arg_t::buf_flags
uint32_t buf_flags
Definition: perfmon_dfl_smpl.h:37
pfm_dfl_smpl_hdr_t::hdr_buf_flags
uint32_t hdr_buf_flags
Definition: perfmon_dfl_smpl.h:53
pfm_dfl_smpl_hdr_t::hdr_overflows
uint64_t hdr_overflows
Definition: perfmon_dfl_smpl.h:49
pfm_dfl_smpl_entry_t::cpu
uint16_t cpu
Definition: perfmon_dfl_smpl.h:75
uint64_t
unsigned long long uint64_t
Definition: instrset.h:144
uint16_t
unsigned short int uint16_t
Definition: instrset.h:140
pfm_dfl_smpl_entry_t::set
uint16_t set
Definition: perfmon_dfl_smpl.h:76
pfm_dfl_smpl_entry_t::ovfl_pmd
uint16_t ovfl_pmd
Definition: perfmon_dfl_smpl.h:70
pfm_dfl_smpl_entry_t::ip
uint64_t ip
Definition: perfmon_dfl_smpl.h:73
pfm_dfl_smpl_entry_t
Definition: perfmon_dfl_smpl.h:68
pfm_dfl_smpl_arg_t::res1
uint32_t res1
Definition: perfmon_dfl_smpl.h:38
pfm_dfl_smpl_entry_t::pid
uint32_t pid
Definition: perfmon_dfl_smpl.h:69
pfm_dfl_smpl_hdr_t
Definition: perfmon_dfl_smpl.h:46
pfm_dfl_smpl_entry_t::last_reset_val
uint64_t last_reset_val
Definition: perfmon_dfl_smpl.h:72
pfm_dfl_smpl_arg_t
Definition: perfmon_dfl_smpl.h:35
pfm_dfl_smpl_hdr_t::hdr_min_buf_space
uint64_t hdr_min_buf_space
Definition: perfmon_dfl_smpl.h:51
pfm_dfl_smpl_hdr_t::hdr_buf_size
uint64_t hdr_buf_size
Definition: perfmon_dfl_smpl.h:50
uint32_t
unsigned int uint32_t
Definition: instrset.h:142
pfm_dfl_smpl_entry_t::tstamp
uint64_t tstamp
Definition: perfmon_dfl_smpl.h:74
pfm_dfl_smpl_entry_t::tgid
uint32_t tgid
Definition: perfmon_dfl_smpl.h:77
pfm_dfl_smpl_hdr_t::hdr_count
uint64_t hdr_count
Definition: perfmon_dfl_smpl.h:47
pfm_dfl_smpl_entry_t::reserved
uint16_t reserved
Definition: perfmon_dfl_smpl.h:71
pfm_dfl_smpl_hdr_t::hdr_version
uint32_t hdr_version
Definition: perfmon_dfl_smpl.h:52
perfmon.h
pfm_dfl_smpl_hdr_t::hdr_cur_offs
uint64_t hdr_cur_offs
Definition: perfmon_dfl_smpl.h:48