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Merge branch 'tracing/hw-breakpoints' into perf/core

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Conflicts:
	arch/x86/kernel/kprobes.c
	kernel/trace/Makefile

Merge reason: hw-breakpoints perf integration is looking
              good in testing and in reviews, plus conflicts
              are mounting up - so merge & resolve.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar
2009-11-21 14:07:23 +01:00
parent 7031281e02 68efa37df7
commit 96200591a3
39 changed files with 2518 additions and 223 deletions
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37
include/linux/perf_event.h
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@ -18,6 +18,10 @@
#include <linux/ioctl.h>
#include <asm/byteorder.h>
#ifdef CONFIG_HAVE_HW_BREAKPOINT
#include <asm/hw_breakpoint.h>
#endif
/*
* User-space ABI bits:
*/
@ -31,6 +35,7 @@ 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 */
};
@ -209,6 +214,15 @@ struct perf_event_attr {
__u32 wakeup_events; /* wakeup every n events */
__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;
@ -478,6 +492,11 @@ 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;
@ -546,6 +565,8 @@ struct perf_pending_entry {
void (*func)(struct perf_pending_entry *);
};
typedef void (*perf_callback_t)(struct perf_event *, void *);
/**
* struct perf_event - performance event kernel representation:
*/
@ -588,7 +609,7 @@ 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;
@ -641,6 +662,10 @@ struct perf_event {
struct event_filter *filter;
#endif
perf_callback_t callback;
perf_callback_t event_callback;
#endif /* CONFIG_PERF_EVENTS */
};
@ -745,6 +770,13 @@ 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_callback_t callback);
extern u64 perf_event_read_value(struct perf_event *event);
struct perf_sample_data {
u64 type;
@ -821,6 +853,7 @@ 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 : \
@ -855,6 +888,8 @@ 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) { }