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Commit e884f80c authored by Julien Thierry's avatar Julien Thierry Committed by Will Deacon
Browse files

arm64: perf: add support for Cortex-A35 



The Cortex-A35 uses some implementation defined perf events.

The Cortex-A35 derives from the Cortex-A53 core, using the same event mapings
based on Cortex-A35 TRM r0p2, section C2.3 - Performance monitoring events
(pages C2-562 to C2-565).

Signed-off-by: default avatarJulien Thierry <julien.thierry@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
parent 5561b6c5

Documentation/devicetree/bindings/arm/pmu.txt

+1 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ Required properties: 
	"arm,cortex-a72-pmu"

	"arm,cortex-a57-pmu"

	"arm,cortex-a53-pmu"

	"arm,cortex-a35-pmu"

	"arm,cortex-a17-pmu"

	"arm,cortex-a15-pmu"

	"arm,cortex-a12-pmu"

arch/arm64/kernel/perf_event.c

+17 −0
Original line number Diff line number Diff line
@@ -990,6 +990,22 @@ static int armv8_pmuv3_init(struct arm_pmu *cpu_pmu) 
	return 0;

}



static int armv8_a35_pmu_init(struct arm_pmu *cpu_pmu)

{

	int ret = armv8_pmu_init(cpu_pmu);

	if (ret)

		return ret;



	cpu_pmu->name			= "armv8_cortex_a35";

	cpu_pmu->map_event		= armv8_a53_map_event;

	cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] =

		&armv8_pmuv3_events_attr_group;

	cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] =

		&armv8_pmuv3_format_attr_group;



	return 0;

}



static int armv8_a53_pmu_init(struct arm_pmu *cpu_pmu)

{

	int ret = armv8_pmu_init(cpu_pmu);
@@ -1088,6 +1104,7 @@ static int armv8_vulcan_pmu_init(struct arm_pmu *cpu_pmu) 


static const struct of_device_id armv8_pmu_of_device_ids[] = {

	{.compatible = "arm,armv8-pmuv3",	.data = armv8_pmuv3_init},

	{.compatible = "arm,cortex-a35-pmu",	.data = armv8_a35_pmu_init},

	{.compatible = "arm,cortex-a53-pmu",	.data = armv8_a53_pmu_init},

	{.compatible = "arm,cortex-a57-pmu",	.data = armv8_a57_pmu_init},

	{.compatible = "arm,cortex-a72-pmu",	.data = armv8_a72_pmu_init},