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perf: Register PMU implementations

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Simple registration interface for struct pmu, this provides the
infrastructure for removing all the weak functions.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: paulus <paulus@samba.org>
Cc: stephane eranian <eranian@googlemail.com>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Lin Ming <ming.m.lin@intel.com>
Cc: Yanmin <yanmin_zhang@linux.intel.com>
Cc: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
Cc: David Miller <davem@davemloft.net>
Cc: Michael Cree <mcree@orcon.net.nz>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra
2010-06-11 13:35:08 +02:00
committed by Ingo Molnar
parent 51b0fe3954
commit b0a873ebbf
10 changed files with 506 additions and 430 deletions
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10
include/linux/perf_event.h
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@@ -561,6 +561,13 @@ struct perf_event;
* struct pmu - generic performance monitoring unit
*/
struct pmu {
struct list_head entry;
/*
* Should return -ENOENT when the @event doesn't match this pmu
*/
int (*event_init) (struct perf_event *event);
int (*enable) (struct perf_event *event);
void (*disable) (struct perf_event *event);
int (*start) (struct perf_event *event);
@@ -849,7 +856,8 @@ struct perf_output_handle {
*/
extern int perf_max_events;
extern struct pmu *hw_perf_event_init(struct perf_event *event);
extern int perf_pmu_register(struct pmu *pmu);
extern void perf_pmu_unregister(struct pmu *pmu);
extern void perf_event_task_sched_in(struct task_struct *task);
extern void perf_event_task_sched_out(struct task_struct *task, struct task_struct *next);