linux-kernel - [PATCH 05/10] drivers/perf: apple_m1: Support per-implementation PMU start

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Message-Id: <20250212-apple-cpmu-v1-5-f8c7f2ac1743@gmail.com>
Date: Wed, 12 Feb 2025 00:07:26 +0800
From: Nick Chan <towinchenmi@...il.com>
To: Will Deacon <will@...nel.org>, Mark Rutland <mark.rutland@....com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Catalin Marinas <catalin.marinas@....com>
Cc: Marc Zyngier <maz@...nel.org>, linux-arm-kernel@...ts.infradead.org, 
 linux-perf-users@...r.kernel.org, devicetree@...r.kernel.org, 
 asahi@...ts.linux.dev, linux-kernel@...r.kernel.org, 
 Nick Chan <towinchenmi@...il.com>
Subject: [PATCH 05/10] drivers/perf: apple_m1: Support per-implementation
 PMU start

Support for implementations that deliver its interrupts in ways other than
FIQ will be added, which requires a per-implementation start function.

Signed-off-by: Nick Chan <towinchenmi@...il.com>
---
 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 06ae20332e79f7dfa819f764a3752fefe53bf5b8..39fcdcdb9e5dd6d4edad0a182dbc2eef62780d8c 100644
--- a/drivers/perf/apple_m1_cpu_pmu.c
+++ b/drivers/perf/apple_m1_cpu_pmu.c
@@ -605,7 +605,6 @@ static int apple_pmu_init_common(struct arm_pmu *cpu_pmu, u32 flags, u32 counter
 	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;
 
@@ -622,6 +621,7 @@ 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_common(cpu_pmu, ARMPMU_EVT_47BIT, M1_PMU_NR_COUNTERS);
 }
 
@@ -631,6 +631,7 @@ 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_common(cpu_pmu, ARMPMU_EVT_47BIT, M1_PMU_NR_COUNTERS);
 }
 
@@ -640,6 +641,7 @@ 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_common(cpu_pmu, ARMPMU_EVT_63BIT, M1_PMU_NR_COUNTERS);
 }
 
@@ -649,6 +651,7 @@ 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_common(cpu_pmu, ARMPMU_EVT_63BIT, M1_PMU_NR_COUNTERS);
 }
 

-- 
2.48.1