diff options
Diffstat (limited to 'include/linux/perf_event.h')
| -rw-r--r-- | include/linux/perf_event.h | 54 |
1 files changed, 26 insertions, 28 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 43adbd7f001..8fa71874113 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -18,10 +18,6 @@ #include <linux/ioctl.h> #include <asm/byteorder.h> -#ifdef CONFIG_HAVE_HW_BREAKPOINT -#include <asm/hw_breakpoint.h> -#endif - /* * User-space ABI bits: */ @@ -215,17 +211,11 @@ struct perf_event_attr { __u32 wakeup_watermark; /* bytes before wakeup */ }; - union { - struct { /* Hardware breakpoint info */ - __u64 bp_addr; - __u32 bp_type; - __u32 bp_len; - }; - }; - __u32 __reserved_2; - __u64 __reserved_3; + __u64 bp_addr; + __u32 bp_type; + __u32 bp_len; }; /* @@ -451,6 +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> @@ -565,10 +559,12 @@ struct perf_pending_entry { void (*func)(struct perf_pending_entry *); }; -typedef void (*perf_callback_t)(struct perf_event *, void *); - 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: */ @@ -660,18 +656,12 @@ struct perf_event { struct pid_namespace *ns; u64 id; - void (*overflow_handler)(struct perf_event *event, - int nmi, struct perf_sample_data *data, - struct pt_regs *regs); + perf_overflow_handler_t overflow_handler; #ifdef CONFIG_EVENT_PROFILE struct event_filter *filter; #endif - perf_callback_t callback; - - perf_callback_t event_callback; - #endif /* CONFIG_PERF_EVENTS */ }; @@ -685,7 +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 @@ -781,7 +771,7 @@ extern struct perf_event * perf_event_create_kernel_counter(struct perf_event_attr *attr, int cpu, pid_t pid, - perf_callback_t callback); + perf_overflow_handler_t callback); extern u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running); @@ -824,9 +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]; @@ -876,6 +871,8 @@ 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) { } @@ -906,7 +903,8 @@ 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) \ |