tools/perf/util/arm-spe.h

Source file repositories/reference/linux-study-clean/tools/perf/util/arm-spe.h

File Facts

System
Linux kernel
Corpus path
tools/perf/util/arm-spe.h
Extension
.h
Size
1540 bytes
Lines
72
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef INCLUDE__PERF_ARM_SPE_H__
#define INCLUDE__PERF_ARM_SPE_H__

#define ARM_SPE_PMU_NAME "arm_spe_"

enum {
	ARM_SPE_PMU_TYPE,
	ARM_SPE_PER_CPU_MMAPS,
	ARM_SPE_AUXTRACE_V1_PRIV_MAX,
};

#define ARM_SPE_AUXTRACE_V1_PRIV_SIZE	\
	(ARM_SPE_AUXTRACE_V1_PRIV_MAX * sizeof(u64))

enum {
	/*
	 * The old metadata format (defined above) does not include a
	 * field for version number. Version 1 is reserved and starts
	 * from version 2.
	 */
	ARM_SPE_HEADER_VERSION,
	/* Number of sizeof(u64) */
	ARM_SPE_HEADER_SIZE,
	/* PMU type shared by CPUs */
	ARM_SPE_PMU_TYPE_V2,
	/* Number of CPUs */
	ARM_SPE_CPUS_NUM,
	ARM_SPE_AUXTRACE_PRIV_MAX,
};

enum {
	/* Magic number */
	ARM_SPE_MAGIC,
	/* CPU logical number in system */
	ARM_SPE_CPU,
	/* Number of parameters */
	ARM_SPE_CPU_NR_PARAMS,
	/* CPU MIDR */
	ARM_SPE_CPU_MIDR,
	/* Associated PMU type */
	ARM_SPE_CPU_PMU_TYPE,
	/* Minimal interval */
	ARM_SPE_CAP_MIN_IVAL,
	/* Event filter */
	ARM_SPE_CAP_EVENT_FILTER,
	ARM_SPE_CPU_PRIV_MAX,
};

#define ARM_SPE_HEADER_CURRENT_VERSION	2


union perf_event;
struct perf_session;
struct perf_pmu;

struct auxtrace_record *arm_spe_recording_init(int *err,
					       struct perf_pmu *arm_spe_pmu);

int arm_spe_process_auxtrace_info(union perf_event *event,
				  struct perf_session *session);

void arm_spe_pmu_default_config(const struct perf_pmu *arm_spe_pmu,
				struct perf_event_attr *attr);

#endif

Annotation

Implementation Notes