diff options
Diffstat (limited to 'include/linux/perf_event.h')
| -rw-r--r-- | include/linux/perf_event.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 1e398e6ec786..f501b8c0de4e 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -235,6 +235,8 @@ struct pmu { atomic_t exclusive_cnt; /* < 0: cpu; > 0: tsk */ int task_ctx_nr; int hrtimer_interval_ms; + u32 events_across_hotplug:1, + reserved:31; /* * Fully disable/enable this PMU, can be used to protect from the PMI @@ -379,7 +381,7 @@ struct pmu { /* * Set up pmu-private data structures for an AUX area */ - void *(*setup_aux) (int cpu, void **pages, + void *(*setup_aux) (struct perf_event *event, void **pages, int nr_pages, bool overwrite); /* optional */ @@ -392,6 +394,14 @@ struct pmu { * Filter events for PMU-specific reasons. */ int (*filter_match) (struct perf_event *event); /* optional */ + + /* + * Initial, PMU driver specific configuration. + */ + int (*get_drv_configs) (struct perf_event *event, + void __user *arg); /* optional */ + void (*free_drv_configs) (struct perf_event *event); + /* optional */ }; /** @@ -467,6 +477,12 @@ struct perf_event { int nr_siblings; int group_flags; struct perf_event *group_leader; + + /* + * Protect the pmu, attributes and context of a group leader. + * Note: does not protect the pointer to the group_leader. + */ + struct mutex group_leader_mutex; struct pmu *pmu; enum perf_event_active_state state; @@ -559,6 +575,7 @@ struct perf_event { struct irq_work pending; atomic_t event_limit; + struct list_head drv_configs; void (*destroy)(struct perf_event *); struct rcu_head rcu_head; @@ -754,6 +771,7 @@ extern u64 perf_event_read_local(struct perf_event *event); extern u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running); +extern struct dentry *perf_create_debug_dir(void); struct perf_sample_data { /* |