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arm64: pmuv3: use arm_pmu ACPI framework 

Now that we have a framework to handle the ACPI bits, make the PMUv3
code use this. The framework is a little different to what was
originally envisaged, and we can drop some unused support code in the
process of moving over to it.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Jeremy Linton <jeremy.linton@arm.com>
[will: make armv8_pmu_driver_init static]
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Mark Rutland 2017-04-11 09:39:57 +01:00 committed by Will Deacon
parent f1b36dcb5c
commit f00fa5f416
1 changed files with 9 additions and 17 deletions
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26
arch/arm64/kernel/perf_event.c
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@ -1136,24 +1136,9 @@ static const struct of_device_id armv8_pmu_of_device_ids[] = {
{},
};
/*
* Non DT systems have their micro/arch events probed at run-time.
* A fairly complete list of generic events are provided and ones that
* aren't supported by the current PMU are disabled.
*/
static const struct pmu_probe_info armv8_pmu_probe_table[] = {
PMU_PROBE(0, 0, armv8_pmuv3_init), /* enable all defined counters */
{ /* sentinel value */ }
};
static int armv8_pmu_device_probe(struct platform_device *pdev)
{
if (acpi_disabled)
return arm_pmu_device_probe(pdev, armv8_pmu_of_device_ids,
NULL);
return arm_pmu_device_probe(pdev, armv8_pmu_of_device_ids,
armv8_pmu_probe_table);
return arm_pmu_device_probe(pdev, armv8_pmu_of_device_ids, NULL);
}
static struct platform_driver armv8_pmu_driver = {
@ -1164,4 +1149,11 @@ static struct platform_driver armv8_pmu_driver = {
.probe = armv8_pmu_device_probe,
};
builtin_platform_driver(armv8_pmu_driver);
static int __init armv8_pmu_driver_init(void)
{
if (acpi_disabled)
return platform_driver_register(&armv8_pmu_driver);
else
return arm_pmu_acpi_probe(armv8_pmuv3_init);
}
device_initcall(armv8_pmu_driver_init)