From: Janne Grunau <j@jannau.net>
To: Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] dt-bindings: arm-pmu: Add PMU compatible strings for Apple M2 cores
Date: Tue, 14 Feb 2023 11:38:01 +0100 [thread overview]
Message-ID: <20230214-apple_m2_pmu-v1-1-9c9213ab9b63@jannau.net> (raw)
In-Reply-To: <20230214-apple_m2_pmu-v1-0-9c9213ab9b63@jannau.net>
The PMUs on the Apple M2 cores avalanche and blizzard CPU are compatible
with M1 ones. As on M1 we don't know exactly what the counters count so
use a distinct compatible for each micro-architecture.
Apple's PMU counter description omits a counter for M2 so there
is some variation on the interpretation of the counters.
Signed-off-by: Janne Grunau <j@jannau.net>
---
Documentation/devicetree/bindings/arm/pmu.yaml | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/pmu.yaml b/Documentation/devicetree/bindings/arm/pmu.yaml
index dbb6f3dc5ae5..e14358bf0b9c 100644
--- a/Documentation/devicetree/bindings/arm/pmu.yaml
+++ b/Documentation/devicetree/bindings/arm/pmu.yaml
@@ -20,6 +20,8 @@ properties:
items:
- enum:
- apm,potenza-pmu
+ - apple,avalanche-pmu
+ - apple,blizzard-pmu
- apple,firestorm-pmu
- apple,icestorm-pmu
- arm,armv8-pmuv3 # Only for s/w models
--
2.39.1
next prev parent reply other threads:[~2023-02-14 10:38 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-14 10:38 [PATCH 0/2] Apple M2 PMU support Janne Grunau
2023-02-14 10:38 ` Janne Grunau [this message]
2023-02-15 20:46 ` [PATCH 1/2] dt-bindings: arm-pmu: Add PMU compatible strings for Apple M2 cores Rob Herring
2023-02-14 10:38 ` [PATCH 2/2] drivers/perf: apple_m1: Add Apple M2 support Janne Grunau
2023-03-24 14:00 ` Mark Rutland
2023-02-14 10:44 ` [PATCH 0/2] Apple M2 PMU support Hector Martin
2023-03-27 15:01 ` Will Deacon
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