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sparc64: Provide a way to specify a perf counter overflow IRQ enable bit.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2009-09-10 07:10:59 -07:00
parent 91b9286d81
commit 496c07e3b4
1 changed files with 4 additions and 2 deletions
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6
arch/sparc/kernel/perf_counter.c
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@@ -78,6 +78,7 @@ struct sparc_pmu {
int lower_shift; int lower_shift;
int event_mask; int event_mask;
int hv_bit; int hv_bit;
int irq_bit;
}; };
static const struct perf_event_map ultra3i_perfmon_event_map[] = { static const struct perf_event_map ultra3i_perfmon_event_map[] = {
@@ -179,7 +180,8 @@ void hw_perf_disable(void)
cpuc->enabled = 0; cpuc->enabled = 0;
val = pcr_ops->read(); 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); 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 * turn off sampling just write 'config', and to enable
* things write 'config | config_base'. * things write 'config | config_base'.
*/ */
hwc->config_base = 0; hwc->config_base = sparc_pmu->irq_bit;
if (!attr->exclude_user) if (!attr->exclude_user)
hwc->config_base |= PCR_UTRACE; hwc->config_base |= PCR_UTRACE;
if (!attr->exclude_kernel) if (!attr->exclude_kernel)