Commit 03eff46c authored by Will Deacon's avatar Will Deacon Committed by Russell King
Browse files

ARM: 8054/1: perf: add support for the Cortex-A17 PMU 



The Cortex-A17 PMU is identical to that of the A12, so wire up a new
compatible string to the existing event structures.

Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 0e0779da

Documentation/devicetree/bindings/arm/pmu.txt

+1 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ Required properties: 


- compatible : should be one of

	"arm,armv8-pmuv3"

	"arm,cortex-a17-pmu"

	"arm,cortex-a15-pmu"

	"arm,cortex-a12-pmu"

	"arm,cortex-a9-pmu"

arch/arm/kernel/perf_event_cpu.c

+1 −0
Original line number Diff line number Diff line
@@ -221,6 +221,7 @@ static struct notifier_block cpu_pmu_hotplug_notifier = { 
 * PMU platform driver and devicetree bindings.

 */

static struct of_device_id cpu_pmu_of_device_ids[] = {

	{.compatible = "arm,cortex-a17-pmu",	.data = armv7_a17_pmu_init},

	{.compatible = "arm,cortex-a15-pmu",	.data = armv7_a15_pmu_init},

	{.compatible = "arm,cortex-a12-pmu",	.data = armv7_a12_pmu_init},

	{.compatible = "arm,cortex-a9-pmu",	.data = armv7_a9_pmu_init},

arch/arm/kernel/perf_event_v7.c

+12 −0
Original line number Diff line number Diff line
@@ -1599,6 +1599,13 @@ static int armv7_a12_pmu_init(struct arm_pmu *cpu_pmu) 
	return 0;

}



static int armv7_a17_pmu_init(struct arm_pmu *cpu_pmu)

{

	armv7_a12_pmu_init(cpu_pmu);

	cpu_pmu->name = "ARMv7 Cortex-A17";

	return 0;

}



/*

 * Krait Performance Monitor Region Event Selection Register (PMRESRn)

 *
@@ -2021,6 +2028,11 @@ static inline int armv7_a12_pmu_init(struct arm_pmu *cpu_pmu) 
	return -ENODEV;

}



static inline int armv7_a17_pmu_init(struct arm_pmu *cpu_pmu)

{

	return -ENODEV;

}



static inline int krait_pmu_init(struct arm_pmu *cpu_pmu)

{

	return -ENODEV;

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