#ifndef __PERF_STATS_H #define __PERF_STATS_H #include #include #include "xyarray.h" struct stats { double n, mean, M2; u64 max, min; }; enum perf_stat_evsel_id { PERF_STAT_EVSEL_ID__NONE = 0, PERF_STAT_EVSEL_ID__CYCLES_IN_TX, PERF_STAT_EVSEL_ID__TRANSACTION_START, PERF_STAT_EVSEL_ID__ELISION_START, PERF_STAT_EVSEL_ID__CYCLES_IN_TX_CP, PERF_STAT_EVSEL_ID__TOPDOWN_TOTAL_SLOTS, PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_ISSUED, PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_RETIRED, PERF_STAT_EVSEL_ID__TOPDOWN_FETCH_BUBBLES, PERF_STAT_EVSEL_ID__TOPDOWN_RECOVERY_BUBBLES, PERF_STAT_EVSEL_ID__MAX, }; struct perf_stat_evsel { struct stats res_stats[3]; enum perf_stat_evsel_id id; }; enum aggr_mode { AGGR_NONE, AGGR_GLOBAL, AGGR_SOCKET, AGGR_CORE, AGGR_THREAD, AGGR_UNSET, }; struct perf_stat_config { enum aggr_mode aggr_mode; bool scale; FILE *output; unsigned int interval; }; 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 perf_evsel; struct perf_evlist; bool __perf_evsel_stat__is(struct perf_evsel *evsel, enum perf_stat_evsel_id id); #define perf_stat_evsel__is(evsel, id) \ __perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id) void perf_stat_evsel_id_init(struct perf_evsel *evsel); extern struct stats walltime_nsecs_stats; typedef void (*print_metric_t)(void *ctx, const char *color, const char *unit, const char *fmt, double val); typedef void (*new_line_t )(void *ctx); void perf_stat__init_shadow_stats(void); void perf_stat__reset_shadow_stats(void); void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count, int cpu); struct perf_stat_output_ctx { void *ctx; print_metric_t print_metric; new_line_t new_line; }; void perf_stat__print_shadow_stats(struct perf_evsel *evsel, double avg, int cpu, struct perf_stat_output_ctx *out); int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw); void perf_evlist__free_stats(struct perf_evlist *evlist); void perf_evlist__reset_stats(struct perf_evlist *evlist); int perf_stat_process_counter(struct perf_stat_config *config, struct perf_evsel *counter); struct perf_tool; union perf_event; struct perf_session; int perf_event__process_stat_event(struct perf_tool *tool, union perf_event *event, struct perf_session *session); 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); #endif d>
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 23:58:38 +0100
committerIngo Molnar <mingo@kernel.org>2017-02-01 08:37:27 +0100
commitdd86e373e09fb16b83e8adf5c48c421a4ca76468 (patch)
tree55703c2ea8584e303e342090614e0aab3509ab21 /sound/soc/qcom/Kconfig
parent0b3589be9b98994ce3d5aeca52445d1f5627c4ba (diff)
perf/x86/intel/rapl: Make package handling more robust
The package management code in RAPL relies on package mapping being available before a CPU is started. This changed with: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") because the ACPI/BIOS information turned out to be unreliable, but that left RAPL in broken state. This was not noticed because on a regular boot all CPUs are online before RAPL is initialized. A possible fix would be to reintroduce the mess which allocates a package data structure in CPU prepare and when it turns out to already exist in starting throw it away later in the CPU online callback. But that's a horrible hack and not required at all because RAPL becomes functional for perf only in the CPU online callback. That's correct because user space is not yet informed about the CPU being onlined, so nothing caan rely on RAPL being available on that particular CPU. Move the allocation to the CPU online callback and simplify the hotplug handling. At this point the package mapping is established and correct. This also adds a missing check for available package data in the event_init() function. Reported-by: Yasuaki Ishimatsu <yasu.isimatu@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Fixes: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'sound/soc/qcom/Kconfig')