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authorMark Rutland <mark.rutland@arm.com>2014-05-13 19:36:31 +0100
committerWill Deacon <will.deacon@arm.com>2014-10-30 12:17:00 +0000
commit116792508607002896b706fbad8310419fcc5742 (patch)
tree1b14145365bd4375a7ee927401d594917a8e127b /arch/arm/kernel/perf_event.c
parenta4560846eba60830a444d9e336c8a18f92e099ee (diff)
downloadlinux-116792508607002896b706fbad8310419fcc5742.tar.gz
arm: perf: kill get_hw_events()
Now that the arm pmu code is limited to CPU PMUs the get_hw_events() function is superfluous, as we'll always have a set of per-cpu pmu_hw_events structures. This patch removes the get_hw_events() function, replacing it with a percpu hw_events pointer. Uses of get_hw_events are updated to use this_cpu_ptr. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm/kernel/perf_event.c')
-rw-r--r--arch/arm/kernel/perf_event.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 864810713cf..05ac5ee6e2b 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -201,7 +201,7 @@ static void
armpmu_del(struct perf_event *event, int flags)
{
struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
- struct pmu_hw_events *hw_events = armpmu->get_hw_events();
+ struct pmu_hw_events *hw_events = this_cpu_ptr(armpmu->hw_events);
struct hw_perf_event *hwc = &event->hw;
int idx = hwc->idx;
@@ -218,7 +218,7 @@ static int
armpmu_add(struct perf_event *event, int flags)
{
struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
- struct pmu_hw_events *hw_events = armpmu->get_hw_events();
+ struct pmu_hw_events *hw_events = this_cpu_ptr(armpmu->hw_events);
struct hw_perf_event *hwc = &event->hw;
int idx;
int err = 0;
@@ -467,7 +467,7 @@ static int armpmu_event_init(struct perf_event *event)
static void armpmu_enable(struct pmu *pmu)
{
struct arm_pmu *armpmu = to_arm_pmu(pmu);
- struct pmu_hw_events *hw_events = armpmu->get_hw_events();
+ struct pmu_hw_events *hw_events = this_cpu_ptr(armpmu->hw_events);
int enabled = bitmap_weight(hw_events->used_mask, armpmu->num_events);
if (enabled)