#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 id=e6e7b48b295afa5a5ab440de0a94d9ad8b3ce2d0'>drivers/usb/musb/omap2430.c
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authorDaniel Vetter <daniel.vetter@ffwll.ch>2017-01-12 17:15:56 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2017-01-30 10:17:32 +0100
commite6e7b48b295afa5a5ab440de0a94d9ad8b3ce2d0 (patch)
tree77cadb6d8aad1b52c34e4afa8c9deef603bbe2ed /drivers/usb/musb/omap2430.c
parent4e5b54f127426c82dc2816340c26d951a5bb3429 (diff)
drm: Don't race connector registration
I was under the misconception that the sysfs dev stuff can be fully set up, and then registered all in one step with device_add. That's true for properties and property groups, but not for parents and child devices. Those must be fully registered before you can register a child. Add a bit of tracking to make sure that asynchronous mst connector hotplugging gets this right. For consistency we rely upon the implicit barriers of the connector->mutex, which is taken anyway, to ensure that at least either the connector or device registration call will work out. Mildly tested since I can't reliably reproduce this on my mst box here. Reported-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1484237756-2720-1-git-send-email-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers/usb/musb/omap2430.c')