xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

perf: Register PMU implementations

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

45
arch/x86/kernel/cpu/perf_event.c
View File

@@ -530,7 +530,7 @@ static int x86_pmu_hw_config(struct perf_event *event)
/*
* Setup the hardware configuration for a given attr_type
*/
static int __hw_perf_event_init(struct perf_event *event)
static int __x86_pmu_event_init(struct perf_event *event)
{
int err;
@@ -1414,6 +1414,7 @@ void __init init_hw_perf_events(void)
pr_info("... fixed-purpose events: %d\n", x86_pmu.num_counters_fixed);
pr_info("... event mask: %016Lx\n", x86_pmu.intel_ctrl);
perf_pmu_register(&pmu);
perf_cpu_notifier(x86_pmu_notifier);
}
@@ -1483,18 +1484,6 @@ static int x86_pmu_commit_txn(struct pmu *pmu)
return 0;
}
static struct pmu pmu = {
.enable = x86_pmu_enable,
.disable = x86_pmu_disable,
.start = x86_pmu_start,
.stop = x86_pmu_stop,
.read = x86_pmu_read,
.unthrottle = x86_pmu_unthrottle,
.start_txn = x86_pmu_start_txn,
.cancel_txn = x86_pmu_cancel_txn,
.commit_txn = x86_pmu_commit_txn,
};
/*
* validate that we can schedule this event
*/
@@ -1569,12 +1558,22 @@ out:
return ret;
}
struct pmu *hw_perf_event_init(struct perf_event *event)
int x86_pmu_event_init(struct perf_event *event)
{
struct pmu *tmp;
int err;
err = __hw_perf_event_init(event);
switch (event->attr.type) {
case PERF_TYPE_RAW:
case PERF_TYPE_HARDWARE:
case PERF_TYPE_HW_CACHE:
break;
default:
return -ENOENT;
}
err = __x86_pmu_event_init(event);
if (!err) {
/*
* we temporarily connect event to its pmu
@@ -1594,12 +1593,24 @@ struct pmu *hw_perf_event_init(struct perf_event *event)
if (err) {
if (event->destroy)
event->destroy(event);
return ERR_PTR(err);
}
return &pmu;
return err;
}
static struct pmu pmu = {
.event_init = x86_pmu_event_init,
.enable = x86_pmu_enable,
.disable = x86_pmu_disable,
.start = x86_pmu_start,
.stop = x86_pmu_stop,
.read = x86_pmu_read,
.unthrottle = x86_pmu_unthrottle,
.start_txn = x86_pmu_start_txn,
.cancel_txn = x86_pmu_cancel_txn,
.commit_txn = x86_pmu_commit_txn,
};
/*
* callchain support
*/