From a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 Mon Sep 17 00:00:00 2001 From: Breno Leitao Date: Wed, 5 Aug 2026 07:52:36 -0700 Subject: workqueue: skip the node_nr_active update for non-unbound workqueues apply_wqattrs_commit() updates node_nr_active->max unconditionally. wq->node_nr_active[] is only allocated for unbound workqueues, so guard the call before per-cpu workqueues start using this path. No functional change: only unbound workqueues reach apply_wqattrs_*() today. Signed-off-by: Breno Leitao Signed-off-by: Tejun Heo --- tools/perf/util/arm-spe.h | 71 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 tools/perf/util/arm-spe.h (limited to 'tools/perf/util/arm-spe.h') diff --git a/tools/perf/util/arm-spe.h b/tools/perf/util/arm-spe.h new file mode 100644 index 000000000..3966df185 --- /dev/null +++ b/tools/perf/util/arm-spe.h @@ -0,0 +1,71 @@ +/* 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, + /* 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 -- cgit v1.3.1