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authorDavid S. Miller <davem@davemloft.net>2010-04-03 15:49:14 -0700
committerDavid S. Miller <davem@davemloft.net>2010-04-03 15:49:14 -0700
commit87e8b821ed8db3dab03d96cd542e29666bf210aa (patch)
tree0027060473aafbbb125655ba027319c8a1a665fc /arch/powerpc/kernel/perf_event.c
parent33cd9dfa3a13e3d8e41aef225a9f98169816723b (diff)
parent5e11611a5d22252f3f9c169a3c9377eac0c32033 (diff)
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Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'arch/powerpc/kernel/perf_event.c')
-rw-r--r--arch/powerpc/kernel/perf_event.c29
1 files changed, 24 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/perf_event.c b/arch/powerpc/kernel/perf_event.c
index b6cf8f1..08460a2 100644
--- a/arch/powerpc/kernel/perf_event.c
+++ b/arch/powerpc/kernel/perf_event.c
@@ -1164,10 +1164,10 @@ static void record_and_restart(struct perf_event *event, unsigned long val,
* Finally record data if requested.
*/
if (record) {
- struct perf_sample_data data = {
- .addr = ~0ULL,
- .period = event->hw.last_period,
- };
+ struct perf_sample_data data;
+
+ perf_sample_data_init(&data, ~0ULL);
+ data.period = event->hw.last_period;
if (event->attr.sample_type & PERF_SAMPLE_ADDR)
perf_get_data_addr(regs, &data.addr);
@@ -1287,7 +1287,7 @@ static void perf_event_interrupt(struct pt_regs *regs)
irq_exit();
}
-void hw_perf_event_setup(int cpu)
+static void power_pmu_setup(int cpu)
{
struct cpu_hw_events *cpuhw = &per_cpu(cpu_hw_events, cpu);
@@ -1297,6 +1297,23 @@ void hw_perf_event_setup(int cpu)
cpuhw->mmcr[0] = MMCR0_FC;
}
+static int __cpuinit
+power_pmu_notifier(struct notifier_block *self, unsigned long action, void *hcpu)
+{
+ unsigned int cpu = (long)hcpu;
+
+ switch (action & ~CPU_TASKS_FROZEN) {
+ case CPU_UP_PREPARE:
+ power_pmu_setup(cpu);
+ break;
+
+ default:
+ break;
+ }
+
+ return NOTIFY_OK;
+}
+
int register_power_pmu(struct power_pmu *pmu)
{
if (ppmu)
@@ -1314,5 +1331,7 @@ int register_power_pmu(struct power_pmu *pmu)
freeze_events_kernel = MMCR0_FCHV;
#endif /* CONFIG_PPC64 */
+ perf_cpu_notifier(power_pmu_notifier);
+
return 0;
}