[PATCH v9 06/21] drivers/perf: apple_m1: Support per-implementation PMU startup
From: Nick Chan <hidden>
Date: 2025-12-17 16:24:59
Also in:
asahi, linux-devicetree, linux-perf-users, lkml
Subsystem:
arm pmu profiling and debugging, the rest · Maintainers:
Will Deacon, Mark Rutland, Linus Torvalds
Support for implementations that deliver its interrupts in ways other than FIQ will be added, which requires a per-implementation startup function. Signed-off-by: Nick Chan <redacted> --- drivers/perf/apple_m1_cpu_pmu.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/perf/apple_m1_cpu_pmu.c b/drivers/perf/apple_m1_cpu_pmu.c
index fb2759069fe9e47146f0342fa46e40f3ab836926..303c0e62432281e899a33fc197365c70078d6ac1 100644
--- a/drivers/perf/apple_m1_cpu_pmu.c
+++ b/drivers/perf/apple_m1_cpu_pmu.c@@ -659,7 +659,6 @@ static int apple_pmu_init(struct arm_pmu *cpu_pmu, u32 counters) cpu_pmu->read_counter = m1_pmu_read_counter; cpu_pmu->write_counter = m1_pmu_write_counter; cpu_pmu->clear_event_idx = m1_pmu_clear_event_idx; - cpu_pmu->start = m1_pmu_start; cpu_pmu->stop = m1_pmu_stop; cpu_pmu->set_event_filter = m1_pmu_set_event_filter;
@@ -681,6 +680,7 @@ static int m1_pmu_ice_init(struct arm_pmu *cpu_pmu) cpu_pmu->get_event_idx = m1_pmu_get_event_idx; cpu_pmu->map_event = m1_pmu_map_event; cpu_pmu->reset = m1_pmu_reset; + cpu_pmu->start = m1_pmu_start; return apple_pmu_init(cpu_pmu, M1_PMU_NR_COUNTERS); }
@@ -690,6 +690,7 @@ static int m1_pmu_fire_init(struct arm_pmu *cpu_pmu) cpu_pmu->get_event_idx = m1_pmu_get_event_idx; cpu_pmu->map_event = m1_pmu_map_event; cpu_pmu->reset = m1_pmu_reset; + cpu_pmu->start = m1_pmu_start; return apple_pmu_init(cpu_pmu, M1_PMU_NR_COUNTERS); }
@@ -699,6 +700,7 @@ static int m2_pmu_avalanche_init(struct arm_pmu *cpu_pmu) cpu_pmu->get_event_idx = m1_pmu_get_event_idx; cpu_pmu->map_event = m2_pmu_map_event; cpu_pmu->reset = m1_pmu_reset; + cpu_pmu->start = m1_pmu_start; return apple_pmu_init(cpu_pmu, M1_PMU_NR_COUNTERS); }
@@ -708,6 +710,7 @@ static int m2_pmu_blizzard_init(struct arm_pmu *cpu_pmu) cpu_pmu->get_event_idx = m1_pmu_get_event_idx; cpu_pmu->map_event = m2_pmu_map_event; cpu_pmu->reset = m1_pmu_reset; + cpu_pmu->start = m1_pmu_start; return apple_pmu_init(cpu_pmu, M1_PMU_NR_COUNTERS); }
--
2.52.0