Commit 496c07e3 authored by David S. Miller's avatar David S. Miller
Browse files

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



Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 91b9286d

arch/sparc/kernel/perf_counter.c

+4 −2
Original line number Diff line number Diff line
@@ -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)