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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Arm Statistical Profiling Extensions (SPE) support
* Copyright (c) 2017-2018, Arm Ltd.
*/
#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,
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
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