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authorDavid S. Miller <davem@davemloft.net>2009-09-10 07:10:59 -0700
committerDavid S. Miller <davem@davemloft.net>2009-09-10 07:10:59 -0700
commit496c07e3b43475124d7f2d77fafbc1f5055abfee (patch)
tree51dbc493a8d0569146a12bc9a7d308eb9c7a2017 /arch/sparc
parent91b9286d819b821fd742c0053fe0748818374198 (diff)
sparc64: Provide a way to specify a perf counter overflow IRQ enable bit.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/kernel/perf_counter.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/sparc/kernel/perf_counter.c b/arch/sparc/kernel/perf_counter.c
index d86009fa6f8..0cd5487b341 100644
--- a/arch/sparc/kernel/perf_counter.c
+++ b/arch/sparc/kernel/perf_counter.c
@@ -78,6 +78,7 @@ struct sparc_pmu {
int lower_shift;
int event_mask;
int hv_bit;
+ int irq_bit;
};
static const struct perf_event_map ultra3i_perfmon_event_map[] = {
@@ -179,7 +180,8 @@ void hw_perf_disable(void)
cpuc->enabled = 0;
val = pcr_ops->read();
- val &= ~(PCR_UTRACE | PCR_STRACE | sparc_pmu->hv_bit);
+ val &= ~(PCR_UTRACE | PCR_STRACE |
+ sparc_pmu->hv_bit | sparc_pmu->irq_bit);
pcr_ops->write(val);
}
@@ -373,7 +375,7 @@ static int __hw_perf_counter_init(struct perf_counter *counter)
* turn off sampling just write 'config', and to enable
* things write 'config | config_base'.
*/
- hwc->config_base = 0;
+ hwc->config_base = sparc_pmu->irq_bit;
if (!attr->exclude_user)
hwc->config_base |= PCR_UTRACE;
if (!attr->exclude_kernel)