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

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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: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Will Deacon 2014-05-09 18:34:19 +01:00 committed by Russell King
parent 0e0779da22
commit 03eff46ce3
3 changed files with 14 additions and 0 deletions
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1
Documentation/devicetree/bindings/arm/pmu.txt
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@ -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"

1
arch/arm/kernel/perf_event_cpu.c
View File

@ -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},

12
arch/arm/kernel/perf_event_v7.c
View File

@ -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;