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Commit 63e02e96 authored by Biao Long's avatar Biao Long
Browse files

Perf: Enable pmuv3 on 32 bit kernel 



Add mechanism to detect and enable pmuv3 on 32 bit kernel.

Change-Id: I56e0c5a0bb2dbc2dc1445fb578782ec5e8c98def
Signed-off-by: default avatarSheetal Sahasrabudhe <sheetals@codeaurora.org>
Signed-off-by: default avatarBiao Long <blong@codeaurora.org>
parent 1e18bf1c

arch/arm/kernel/perf_event_v7.c

+11 −0
Original line number Diff line number Diff line
@@ -1301,6 +1301,16 @@ static int armv7_a15_pmu_init(struct arm_pmu *cpu_pmu) 
	return armv7_probe_pmu(cpu_pmu);

}



static int armv8_pmuv3_pmu_init(struct arm_pmu *cpu_pmu)

{

	armv7pmu_init(cpu_pmu);

	cpu_pmu->name		= "ARMv8 Cortex-A53";

	cpu_pmu->map_event	= armv7_a7_map_event;

	armv7_read_num_pmnc_events(&cpu_pmu->num_events);

	cpu_pmu->set_event_filter = armv7pmu_set_event_filter;

	return 0;

}



static int armv7_a7_pmu_init(struct arm_pmu *cpu_pmu)

{

	armv7pmu_init(cpu_pmu);
@@ -2073,6 +2083,7 @@ static const struct of_device_id armv7_pmu_of_device_ids[] = { 
	{.compatible = "qcom,krait-pmu",	.data = krait_pmu_init},

	{.compatible = "qcom,scorpion-pmu",	.data = scorpion_pmu_init},

	{.compatible = "qcom,scorpion-mp-pmu",	.data = scorpion_mp_pmu_init},

	{.compatible = "arm,armv8-pmuv3",      .data = armv8_pmuv3_pmu_init},

	{},

};