135 lines
2.7 KiB
C
135 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_SAMPLE_H
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#define __PERF_SAMPLE_H
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#include <linux/perf_event.h>
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#include <linux/types.h>
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/* number of register is bound by the number of bits in regs_dump::mask (64) */
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#define PERF_SAMPLE_REGS_CACHE_SIZE (8 * sizeof(u64))
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struct regs_dump {
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u64 abi;
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u64 mask;
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u64 *regs;
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/* Cached values/mask filled by first register access. */
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u64 cache_regs[PERF_SAMPLE_REGS_CACHE_SIZE];
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u64 cache_mask;
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};
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struct stack_dump {
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u16 offset;
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u64 size;
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char *data;
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};
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struct sample_read_value {
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u64 value;
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u64 id; /* only if PERF_FORMAT_ID */
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u64 lost; /* only if PERF_FORMAT_LOST */
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};
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struct sample_read {
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u64 time_enabled;
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u64 time_running;
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union {
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struct {
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u64 nr;
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struct sample_read_value *values;
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} group;
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struct sample_read_value one;
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};
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};
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static inline size_t sample_read_value_size(u64 read_format)
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{
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/* PERF_FORMAT_ID is forced for PERF_SAMPLE_READ */
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if (read_format & PERF_FORMAT_LOST)
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return sizeof(struct sample_read_value);
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else
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return offsetof(struct sample_read_value, lost);
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}
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static inline struct sample_read_value *next_sample_read_value(struct sample_read_value *v, u64 read_format)
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{
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return (void *)v + sample_read_value_size(read_format);
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}
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#define sample_read_group__for_each(v, nr, rf) \
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for (int __i = 0; __i < (int)nr; v = next_sample_read_value(v, rf), __i++)
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#define MAX_INSN 16
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struct aux_sample {
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u64 size;
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void *data;
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};
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struct simd_flags {
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u64 arch:1, /* architecture (isa) */
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pred:2; /* predication */
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};
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/* simd architecture flags */
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#define SIMD_OP_FLAGS_ARCH_SVE 0x01 /* ARM SVE */
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/* simd predicate flags */
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#define SIMD_OP_FLAGS_PRED_PARTIAL 0x01 /* partial predicate */
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#define SIMD_OP_FLAGS_PRED_EMPTY 0x02 /* empty predicate */
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struct perf_sample {
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u64 ip;
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u32 pid, tid;
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u64 time;
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u64 addr;
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u64 id;
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u64 stream_id;
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u64 period;
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u64 weight;
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u64 transaction;
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u64 insn_cnt;
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u64 cyc_cnt;
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u32 cpu;
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u32 raw_size;
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u64 data_src;
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u64 phys_addr;
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u64 data_page_size;
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u64 code_page_size;
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u64 cgroup;
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u32 flags;
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u32 machine_pid;
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u32 vcpu;
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u16 insn_len;
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u8 cpumode;
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u16 misc;
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u16 ins_lat;
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union {
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u16 p_stage_cyc;
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u16 retire_lat;
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};
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bool no_hw_idx; /* No hw_idx collected in branch_stack */
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char insn[MAX_INSN];
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void *raw_data;
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struct ip_callchain *callchain;
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struct branch_stack *branch_stack;
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u64 *branch_stack_cntr;
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struct regs_dump user_regs;
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struct regs_dump intr_regs;
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struct stack_dump user_stack;
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struct sample_read read;
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struct aux_sample aux_sample;
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struct simd_flags simd_flags;
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};
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/*
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* raw_data is always 4 bytes from an 8-byte boundary, so subtract 4 to get
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* 8-byte alignment.
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*/
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static inline void *perf_sample__synth_ptr(struct perf_sample *sample)
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{
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return sample->raw_data - 4;
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}
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#endif /* __PERF_SAMPLE_H */
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