1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_SAMPLE_H
3 #define __PERF_SAMPLE_H
4
5 #include <linux/perf_event.h>
6 #include <linux/types.h>
7
8 /* number of register is bound by the number of bits in regs_dump::mask (64) */
9 #define PERF_SAMPLE_REGS_CACHE_SIZE (8 * sizeof(u64))
10
11 struct regs_dump {
12 u64 abi;
13 u64 mask;
14 u64 *regs;
15
16 /* Cached values/mask filled by first register access. */
17 u64 cache_regs[PERF_SAMPLE_REGS_CACHE_SIZE];
18 u64 cache_mask;
19 };
20
21 struct stack_dump {
22 u16 offset;
23 u64 size;
24 char *data;
25 };
26
27 struct sample_read_value {
28 u64 value;
29 u64 id; /* only if PERF_FORMAT_ID */
30 u64 lost; /* only if PERF_FORMAT_LOST */
31 };
32
33 struct sample_read {
34 u64 time_enabled;
35 u64 time_running;
36 union {
37 struct {
38 u64 nr;
39 struct sample_read_value *values;
40 } group;
41 struct sample_read_value one;
42 };
43 };
44
45 static inline size_t sample_read_value_size(u64 read_format)
46 {
47 /* PERF_FORMAT_ID is forced for PERF_SAMPLE_READ */
48 if (read_format & PERF_FORMAT_LOST)
49 return sizeof(struct sample_read_value);
50 else
51 return offsetof(struct sample_read_value, lost);
52 }
53
54 static inline struct sample_read_value *next_sample_read_value(struct sample_read_value *v, u64 read_format)
55 {
56 return (void *)v + sample_read_value_size(read_format);
57 }
58
59 #define sample_read_group__for_each(v, nr, rf) \
60 for (int __i = 0; __i < (int)nr; v = next_sample_read_value(v, rf), __i++)
61
62 #define MAX_INSN 16
63
64 struct aux_sample {
65 u64 size;
66 void *data;
67 };
68
69 struct simd_flags {
70 u64 arch:1, /* architecture (isa) */
71 pred:2; /* predication */
72 };
73
74 /* simd architecture flags */
75 #define SIMD_OP_FLAGS_ARCH_SVE 0x01 /* ARM SVE */
76
77 /* simd predicate flags */
78 #define SIMD_OP_FLAGS_PRED_PARTIAL 0x01 /* partial predicate */
79 #define SIMD_OP_FLAGS_PRED_EMPTY 0x02 /* empty predicate */
80
81 struct perf_sample {
82 u64 ip;
83 u32 pid, tid;
84 u64 time;
85 u64 addr;
86 u64 id;
87 u64 stream_id;
88 u64 period;
89 u64 weight;
90 u64 transaction;
91 u64 insn_cnt;
92 u64 cyc_cnt;
93 u32 cpu;
94 u32 raw_size;
95 u64 data_src;
96 u64 phys_addr;
97 u64 data_page_size;
98 u64 code_page_size;
99 u64 cgroup;
100 u32 flags;
101 u32 machine_pid;
102 u32 vcpu;
103 u16 insn_len;
104 u8 cpumode;
105 u16 misc;
106 u16 ins_lat;
107 union {
108 u16 p_stage_cyc;
109 u16 retire_lat;
110 };
111 bool no_hw_idx; /* No hw_idx collected in branch_stack */
112 char insn[MAX_INSN];
113 void *raw_data;
114 struct ip_callchain *callchain;
115 struct branch_stack *branch_stack;
116 u64 *branch_stack_cntr;
117 struct regs_dump user_regs;
118 struct regs_dump intr_regs;
119 struct stack_dump user_stack;
120 struct sample_read read;
121 struct aux_sample aux_sample;
122 struct simd_flags simd_flags;
123 };
124
125 /*
126 * raw_data is always 4 bytes from an 8-byte boundary, so subtract 4 to get
127 * 8-byte alignment.
128 */
129 static inline void *perf_sample__synth_ptr(struct perf_sample *sample)
130 {
131 return sample->raw_data - 4;
132 }
133
134 #endif /* __PERF_SAMPLE_H */
135
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