diff options
| author |   Mark Rutland <mark.rutland@arm.com> | 2017-04-11 09:39:55 +0100 |
|---|---|---|
| committer |   Will Deacon <will.deacon@arm.com> | 2017-04-11 16:29:54 +0100 |
| commit | 45736a72fb79b204c1fbdb08a1e1a2aa52c7281a (patch) | |
| tree | f5d754d6d02135ec024e9253fbf51d759c202edf /drivers/perf/arm_pmu.c | |
| parent | arm64: add function to get a cpu's MADT GICC table (diff) | |
| download | linux-dev-45736a72fb79b204c1fbdb08a1e1a2aa52c7281a.tar.xz linux-dev-45736a72fb79b204c1fbdb08a1e1a2aa52c7281a.zip | |
drivers/perf: arm_pmu: add ACPI framework
This patch adds framework code to handle parsing PMU data out of the
MADT, sanity checking this, and managing the association of CPUs (and
their interrupts) with appropriate logical PMUs.
For the time being, we expect that only one PMU driver (PMUv3) will make
use of this, and we simply pass in a single probe function.
This is based on an earlier patch from Jeremy Linton.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Jeremy Linton <jeremy.linton@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/perf/arm_pmu.c')
| -rw-r--r-- | drivers/perf/arm_pmu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c index b3bedfa512eb..dc459eb1246b 100644 --- a/drivers/perf/arm_pmu.c +++ b/drivers/perf/arm_pmu.c @@ -525,7 +525,7 @@ int perf_num_counters(void) } EXPORT_SYMBOL_GPL(perf_num_counters); -static void armpmu_free_irq(struct arm_pmu *armpmu, int cpu) +void armpmu_free_irq(struct arm_pmu *armpmu, int cpu) { struct pmu_hw_events __percpu *hw_events = armpmu->hw_events; int irq = per_cpu(hw_events->irq, cpu); @@ -550,7 +550,7 @@ void armpmu_free_irqs(struct arm_pmu *armpmu) armpmu_free_irq(armpmu, cpu); } -static int armpmu_request_irq(struct arm_pmu *armpmu, int cpu) +int armpmu_request_irq(struct arm_pmu *armpmu, int cpu) { int err = 0; struct pmu_hw_events __percpu *hw_events = armpmu->hw_events; |