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Commit fc413a8b authored by qctecmdr Service's avatar qctecmdr Service Committed by Gerrit - the friendly Code Review server
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Merge "perf: Change PMCR write to read-modify-write"

parents 6862b64e 9604564b

arch/arm64/kernel/perf_event.c

+2 −2
Original line number Diff line number Diff line
@@ -981,8 +981,8 @@ static void armv8pmu_reset(void *info) 
	 * Initialize & Reset PMNC. Request overflow interrupt for

	 * 64 bit cycle counter but cheat in armv8pmu_write_counter().

	 */

	armv8pmu_pmcr_write(ARMV8_PMU_PMCR_P | ARMV8_PMU_PMCR_C |

			    ARMV8_PMU_PMCR_LC);

	armv8pmu_pmcr_write(armv8pmu_pmcr_read() | ARMV8_PMU_PMCR_P |

			ARMV8_PMU_PMCR_C | ARMV8_PMU_PMCR_LC);

}



static int __armv8_pmuv3_map_event(struct perf_event *event,