linux-kernel - [PATCH 2/2] drivers/perf: apple

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Message-Id: <20230214-apple_m2_pmu-v1-2-9c9213ab9b63@jannau.net>
Date:   Tue, 14 Feb 2023 11:38:02 +0100
From:   Janne Grunau <j@...nau.net>
To:     Will Deacon <will@...nel.org>, Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     asahi@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] drivers/perf: apple_m1: Add Apple M2 support

The PMU itself is compatible with the one found on M1. We still know
next to nothing about the counters so keep using CPU uarch specific
compatibles/PMU names.

Signed-off-by: Janne Grunau <j@...nau.net>
---
 drivers/perf/apple_m1_cpu_pmu.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/perf/apple_m1_cpu_pmu.c b/drivers/perf/apple_m1_cpu_pmu.c
index 979a7c2b4f56..83b74c7fe63f 100644
--- a/drivers/perf/apple_m1_cpu_pmu.c
+++ b/drivers/perf/apple_m1_cpu_pmu.c
@@ -559,7 +559,21 @@ static int m1_pmu_fire_init(struct arm_pmu *cpu_pmu)
 	return m1_pmu_init(cpu_pmu);
 }
 
+static int m2_pmu_avalanche_init(struct arm_pmu *cpu_pmu)
+{
+	cpu_pmu->name = "apple_avalanche_pmu";
+	return m1_pmu_init(cpu_pmu);
+}
+
+static int m2_pmu_blizzard_init(struct arm_pmu *cpu_pmu)
+{
+	cpu_pmu->name = "apple_blizzard_pmu";
+	return m1_pmu_init(cpu_pmu);
+}
+
 static const struct of_device_id m1_pmu_of_device_ids[] = {
+	{ .compatible = "apple,avalanche-pmu",	.data = m2_pmu_avalanche_init, },
+	{ .compatible = "apple,blizzard-pmu",	.data = m2_pmu_blizzard_init, },
 	{ .compatible = "apple,icestorm-pmu",	.data = m1_pmu_ice_init, },
 	{ .compatible = "apple,firestorm-pmu",	.data = m1_pmu_fire_init, },
 	{ },

-- 
2.39.1