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 perf_sample { 70 u64 ip; 71 u32 pid, tid; 72 u64 time; 73 u64 addr; 74 u64 id; 75 u64 stream_id; 76 u64 period; 77 u64 weight; 78 u64 transaction; 79 u64 insn_cnt; 80 u64 cyc_cnt; 81 u32 cpu; 82 u32 raw_size; 83 u64 data_src; 84 u64 phys_addr; 85 u64 data_page_size; 86 u64 code_page_size; 87 u64 cgroup; 88 u32 flags; 89 u32 machine_pid; 90 u32 vcpu; 91 u16 insn_len; 92 u8 cpumode; 93 u16 misc; 94 u16 ins_lat; 95 union { 96 u16 p_stage_cyc; 97 u16 retire_lat; 98 }; 99 bool no_hw_idx; /* No hw_idx collected in branch_stack */ 100 char insn[MAX_INSN]; 101 void *raw_data; 102 struct ip_callchain *callchain; 103 struct branch_stack *branch_stack; 104 struct regs_dump user_regs; 105 struct regs_dump intr_regs; 106 struct stack_dump user_stack; 107 struct sample_read read; 108 struct aux_sample aux_sample; 109 }; 110 111 /* 112 * raw_data is always 4 bytes from an 8-byte boundary, so subtract 4 to get 113 * 8-byte alignment. 114 */ 115 static inline void *perf_sample__synth_ptr(struct perf_sample *sample) 116 { 117 return sample->raw_data - 4; 118 } 119 120 #endif /* __PERF_SAMPLE_H */ 121