From 4352b8aee98005853aa63f57d6377282de17a33f Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 23 Aug 2026 13:28:57 -0700 Subject: Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull I3C updates from Alexandre Belloni: "A new driver this cycle, for the AMD AXI I3C controller. There are also new features such as IBI wakeup support, SETAASA device discovery and ACPI support for the the DAA methods, meaning we can now communicate with the SPD devices on DDR5 modules. New driver: - AMD AXI I3C master controller Subsystem: - I3C Common Command Code (CCC) handling improvements, especially around GET CCCs - SETAASA device discovery support - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as well as I2C devices on I3C bus - IBI-based wakeup support Drivers: - dw: SETAASA support - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C controller support, PIO queue management support for HCI v1.2 - renesas: improve suspend to RAM support, add runtime PM support" * tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits) i3c: dw: reduce do_daa time if there's no client i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2 i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode i3c: dw: rename "pclk" to "apb" to match dt-binding i3c: dw: make struct dw_i3c_cmd smaller i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding i3c: renesas: Don't register devices when ENTDAA times out i3c: master: dw-i3c-master: fix OD timing for first broadcast i3c: mipi-i3c-hci: Advertise IBI wakeup capability i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev() i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI i3c: master: Reject IBI requests from non-IBI-capable devices i3c: master: Add helper to query bus wakeup requirements i3c: master: Report wakeup events for IBIs i3c: master: Support IBI-based wakeup capability i3c: master: Fix potential UAF in i3c_device_match() i3c: master: Fix potential UAF in i3c_device_uevent() i3c: Make dev->desc locking assumptions explicit i3c: master: Fix use-after-free of master->this ... --- tools/perf/util/stat.h | 210 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 210 insertions(+) create mode 100644 tools/perf/util/stat.h (limited to 'tools/perf/util/stat.h') diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h new file mode 100644 index 000000000..e3598037a --- /dev/null +++ b/tools/perf/util/stat.h @@ -0,0 +1,210 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __PERF_STATS_H +#define __PERF_STATS_H + +#include +#include +#include +#include +#include "cpumap.h" +#include "counts.h" + +struct perf_cpu_map; +struct perf_stat_config; +struct timespec; + +struct stats { + double n, mean, M2; + u64 max, min; +}; + +/* hold aggregated event info */ +struct perf_stat_aggr { + /* aggregated values */ + struct perf_counts_values counts; + /* number of entries (CPUs) aggregated */ + int nr; + /* whether any entry has failed to read/process event */ + bool failed; + /* to mark this data is processed already */ + bool used; +}; + +/* per-evsel event stats */ +struct perf_stat_evsel { + /* used for repeated runs */ + struct stats res_stats; + /* number of allocated 'aggr' */ + int nr_aggr; + /* aggregated event values */ + struct perf_stat_aggr *aggr; + /* used for group read */ + u64 *group_data; +}; + +enum aggr_mode { + AGGR_NONE, + AGGR_GLOBAL, + AGGR_SOCKET, + AGGR_DIE, + AGGR_CLUSTER, + AGGR_CACHE, + AGGR_CORE, + AGGR_THREAD, + AGGR_UNSET, + AGGR_NODE, + AGGR_MAX +}; + +typedef struct aggr_cpu_id (*aggr_get_id_t)(struct perf_stat_config *config, struct perf_cpu cpu); + +struct perf_stat_config { + enum aggr_mode aggr_mode; + u32 aggr_level; + bool scale; + bool no_inherit; + bool identifier; + bool csv_output; + bool json_output; + bool interval_clear; + bool metric_only; + bool null_run; + bool hide_zero; + bool ru_display; + bool big_num; + bool hybrid_merge; + bool walltime_run_table; + bool all_kernel; + bool all_user; + bool percore_show_thread; + bool summary; + bool no_csv_summary; + bool metric_no_group; + bool metric_no_merge; + bool metric_no_threshold; + bool hardware_aware_grouping; + bool stop_read_counter; + bool iostat_run; + char *user_requested_cpu_list; + bool system_wide; + FILE *output; + unsigned int interval; + unsigned int timeout; + unsigned int unit_width; + unsigned int metric_only_len; + int times; + int run_count; + int print_free_counters_hint; + const char *csv_sep; + struct stats *walltime_nsecs_stats; + struct rusage ru_data; + struct cpu_aggr_map *aggr_map; + aggr_get_id_t aggr_get_id; + struct cpu_aggr_map *cpus_aggr_map; + u64 *walltime_run; + int ctl_fd; + int ctl_fd_ack; + bool ctl_fd_close; + const char *cgroup_list; + unsigned int topdown_level; +}; + +extern struct perf_stat_config stat_config; + +void perf_stat__set_big_num(int set); + +void update_stats(struct stats *stats, u64 val); +double avg_stats(struct stats *stats); +double stddev_stats(struct stats *stats); +double rel_stddev_stats(double stddev, double avg); + +static inline void init_stats(struct stats *stats) +{ + stats->n = 0.0; + stats->mean = 0.0; + stats->M2 = 0.0; + stats->min = (u64) -1; + stats->max = 0; +} + +struct evsel; +struct evlist; + +enum metric_threshold_classify { + METRIC_THRESHOLD_UNKNOWN, + METRIC_THRESHOLD_BAD, + METRIC_THRESHOLD_NEARLY_BAD, + METRIC_THRESHOLD_LESS_GOOD, + METRIC_THRESHOLD_GOOD, +}; +const char *metric_threshold_classify__color(enum metric_threshold_classify thresh); + +typedef void (*print_metric_t)(struct perf_stat_config *config, + void *ctx, + enum metric_threshold_classify thresh, + const char *fmt, + const char *unit, + double val); +typedef void (*new_line_t)(struct perf_stat_config *config, void *ctx); + +/* Used to print the display name of the Default metricgroup for now. */ +typedef void (*print_metricgroup_header_t)(struct perf_stat_config *config, + void *ctx, const char *metricgroup_name); + +void perf_stat__reset_shadow_stats(void); +struct perf_stat_output_ctx { + void *ctx; + print_metric_t print_metric; + new_line_t new_line; + print_metricgroup_header_t print_metricgroup_header; + bool force_header; +}; + +void perf_stat__print_shadow_stats(struct perf_stat_config *config, + struct evsel *evsel, + int aggr_idx, + struct perf_stat_output_ctx *out); +bool perf_stat__skip_metric_event(struct evsel *evsel); +void *perf_stat__print_shadow_stats_metricgroup(struct perf_stat_config *config, + struct evsel *evsel, + int aggr_idx, + int *num, + void *from, + struct perf_stat_output_ctx *out); + +int evlist__alloc_stats(struct perf_stat_config *config, + struct evlist *evlist, bool alloc_raw); +void evlist__free_stats(struct evlist *evlist); +void evlist__reset_stats(struct evlist *evlist); +void evlist__reset_prev_raw_counts(struct evlist *evlist); +void evlist__copy_prev_raw_counts(struct evlist *evlist); +void evlist__save_aggr_prev_raw_counts(struct evlist *evlist); + +int evlist__alloc_aggr_stats(struct evlist *evlist, int nr_aggr); +void evlist__reset_aggr_stats(struct evlist *evlist); +void evlist__copy_res_stats(struct perf_stat_config *config, struct evlist *evlist); + +int perf_stat_process_counter(struct perf_stat_config *config, + struct evsel *counter); +void perf_stat_merge_counters(struct perf_stat_config *config, struct evlist *evlist); +void perf_stat_process_percore(struct perf_stat_config *config, struct evlist *evlist); + +struct perf_tool; +union perf_event; +struct perf_session; +struct target; + +int perf_event__process_stat_event(const struct perf_tool *tool, + struct perf_session *session, + union perf_event *event); + +size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp); +size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp); +size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp); + +void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config, + struct target *_target, struct timespec *ts, int argc, const char **argv); + +struct metric_expr; +double test_generic_metric(struct metric_expr *mexp, int aggr_idx); +#endif -- cgit v1.3.1