diff options
Diffstat (limited to 'include/linux/perf_event.h')
| -rw-r--r-- | include/linux/perf_event.h | 69 |
1 files changed, 60 insertions, 9 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 9e7012689a84..8fa71874113f 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -31,6 +31,7 @@ enum perf_type_id { PERF_TYPE_TRACEPOINT = 2, PERF_TYPE_HW_CACHE = 3, PERF_TYPE_RAW = 4, + PERF_TYPE_BREAKPOINT = 5, PERF_TYPE_MAX, /* non-ABI */ }; @@ -102,6 +103,8 @@ enum perf_sw_ids { PERF_COUNT_SW_CPU_MIGRATIONS = 4, PERF_COUNT_SW_PAGE_FAULTS_MIN = 5, PERF_COUNT_SW_PAGE_FAULTS_MAJ = 6, + PERF_COUNT_SW_ALIGNMENT_FAULTS = 7, + PERF_COUNT_SW_EMULATION_FAULTS = 8, PERF_COUNT_SW_MAX, /* non-ABI */ }; @@ -207,9 +210,12 @@ struct perf_event_attr { __u32 wakeup_events; /* wakeup every n events */ __u32 wakeup_watermark; /* bytes before wakeup */ }; + __u32 __reserved_2; - __u64 __reserved_3; + __u64 bp_addr; + __u32 bp_type; + __u32 bp_len; }; /* @@ -219,8 +225,9 @@ struct perf_event_attr { #define PERF_EVENT_IOC_DISABLE _IO ('$', 1) #define PERF_EVENT_IOC_REFRESH _IO ('$', 2) #define PERF_EVENT_IOC_RESET _IO ('$', 3) -#define PERF_EVENT_IOC_PERIOD _IOW('$', 4, u64) +#define PERF_EVENT_IOC_PERIOD _IOW('$', 4, __u64) #define PERF_EVENT_IOC_SET_OUTPUT _IO ('$', 5) +#define PERF_EVENT_IOC_SET_FILTER _IOW('$', 6, char *) enum perf_event_ioc_flags { PERF_IOC_FLAG_GROUP = 1U << 0, @@ -434,6 +441,10 @@ enum perf_callchain_context { # include <asm/perf_event.h> #endif +#ifdef CONFIG_HAVE_HW_BREAKPOINT +#include <asm/hw_breakpoint.h> +#endif + #include <linux/list.h> #include <linux/mutex.h> #include <linux/rculist.h> @@ -475,6 +486,11 @@ struct hw_perf_event { s64 remaining; struct hrtimer hrtimer; }; +#ifdef CONFIG_HAVE_HW_BREAKPOINT + union { /* breakpoint */ + struct arch_hw_breakpoint info; + }; +#endif }; atomic64_t prev_count; u64 sample_period; @@ -543,6 +559,12 @@ struct perf_pending_entry { void (*func)(struct perf_pending_entry *); }; +struct perf_sample_data; + +typedef void (*perf_overflow_handler_t)(struct perf_event *, int, + struct perf_sample_data *, + struct pt_regs *regs); + /** * struct perf_event - performance event kernel representation: */ @@ -585,7 +607,7 @@ struct perf_event { u64 tstamp_running; u64 tstamp_stopped; - struct perf_event_attr attr; + struct perf_event_attr attr; struct hw_perf_event hw; struct perf_event_context *ctx; @@ -633,7 +655,14 @@ struct perf_event { struct pid_namespace *ns; u64 id; + + perf_overflow_handler_t overflow_handler; + +#ifdef CONFIG_EVENT_PROFILE + struct event_filter *filter; #endif + +#endif /* CONFIG_PERF_EVENTS */ }; /** @@ -646,7 +675,7 @@ struct perf_event_context { * Protect the states of the events in the list, * nr_active, and the list: */ - spinlock_t lock; + raw_spinlock_t lock; /* * Protect the list of events. Locking either mutex or lock * is sufficient to ensure the list doesn't change; to change @@ -706,7 +735,6 @@ struct perf_output_handle { int nmi; int sample; int locked; - unsigned long flags; }; #ifdef CONFIG_PERF_EVENTS @@ -738,6 +766,14 @@ extern int hw_perf_group_sched_in(struct perf_event *group_leader, struct perf_cpu_context *cpuctx, struct perf_event_context *ctx, int cpu); extern void perf_event_update_userpage(struct perf_event *event); +extern int perf_event_release_kernel(struct perf_event *event); +extern struct perf_event * +perf_event_create_kernel_counter(struct perf_event_attr *attr, + int cpu, + pid_t pid, + perf_overflow_handler_t callback); +extern u64 perf_event_read_value(struct perf_event *event, + u64 *enabled, u64 *running); struct perf_sample_data { u64 type; @@ -778,9 +814,14 @@ extern int perf_event_overflow(struct perf_event *event, int nmi, */ static inline int is_software_event(struct perf_event *event) { - return (event->attr.type != PERF_TYPE_RAW) && - (event->attr.type != PERF_TYPE_HARDWARE) && - (event->attr.type != PERF_TYPE_HW_CACHE); + switch (event->attr.type) { + case PERF_TYPE_SOFTWARE: + case PERF_TYPE_TRACEPOINT: + /* for now the breakpoint stuff also works as software event */ + case PERF_TYPE_BREAKPOINT: + return 1; + } + return 0; } extern atomic_t perf_swevent_enabled[PERF_COUNT_SW_MAX]; @@ -814,6 +855,7 @@ extern int sysctl_perf_event_sample_rate; extern void perf_event_init(void); extern void perf_tp_event(int event_id, u64 addr, u64 count, void *record, int entry_size); +extern void perf_bp_event(struct perf_event *event, void *data); #ifndef perf_misc_flags #define perf_misc_flags(regs) (user_mode(regs) ? PERF_RECORD_MISC_USER : \ @@ -827,6 +869,10 @@ extern int perf_output_begin(struct perf_output_handle *handle, extern void perf_output_end(struct perf_output_handle *handle); extern void perf_output_copy(struct perf_output_handle *handle, const void *buf, unsigned int len); +extern int perf_swevent_get_recursion_context(void); +extern void perf_swevent_put_recursion_context(int rctx); +extern void perf_event_enable(struct perf_event *event); +extern void perf_event_disable(struct perf_event *event); #else static inline void perf_event_task_sched_in(struct task_struct *task, int cpu) { } @@ -848,12 +894,17 @@ static inline int perf_event_task_enable(void) { return -EINVAL; } static inline void perf_sw_event(u32 event_id, u64 nr, int nmi, struct pt_regs *regs, u64 addr) { } +static inline void +perf_bp_event(struct perf_event *event, void *data) { } static inline void perf_event_mmap(struct vm_area_struct *vma) { } static inline void perf_event_comm(struct task_struct *tsk) { } static inline void perf_event_fork(struct task_struct *tsk) { } static inline void perf_event_init(void) { } - +static inline int perf_swevent_get_recursion_context(void) { return -1; } +static inline void perf_swevent_put_recursion_context(int rctx) { } +static inline void perf_event_enable(struct perf_event *event) { } +static inline void perf_event_disable(struct perf_event *event) { } #endif #define perf_output_put(handle, x) \ |