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Message-Id: <20221107155825.1644604-3-pierre.gondois@arm.com>
Date: Mon, 7 Nov 2022 16:56:55 +0100
From: Pierre Gondois <pierre.gondois@....com>
To: linux-kernel@...r.kernel.org
Cc: Pierre Gondois <pierre.gondois@....com>,
Rob Herring <robh+dt@...nel.org>,
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Subject: [PATCH v2 02/23] arm64: dts: Update cache properties for amd
The DeviceTree Specification v0.3 specifies that the cache node
'compatible' and 'cache-level' properties are 'required'. Cf.
s3.8 Multi-level and Shared Cache Nodes
The 'cache-unified' property should be present if one of the
properties for unified cache is present ('cache-size', ...).
Update the Device Trees accordingly.
Signed-off-by: Pierre Gondois <pierre.gondois@....com>
---
arch/arm64/boot/dts/amd/amd-seattle-cpus.dtsi | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm64/boot/dts/amd/amd-seattle-cpus.dtsi b/arch/arm64/boot/dts/amd/amd-seattle-cpus.dtsi
index 93688a0b6820..9f2d983e082d 100644
--- a/arch/arm64/boot/dts/amd/amd-seattle-cpus.dtsi
+++ b/arch/arm64/boot/dts/amd/amd-seattle-cpus.dtsi
@@ -163,38 +163,47 @@ CPU7: cpu@301 {
};
L2_0: l2-cache0 {
+ compatible = "cache";
cache-size = <0x100000>;
cache-line-size = <64>;
cache-sets = <1024>;
cache-unified;
+ cache-level = <2>;
next-level-cache = <&L3>;
};
L2_1: l2-cache1 {
+ compatible = "cache";
cache-size = <0x100000>;
cache-line-size = <64>;
cache-sets = <1024>;
cache-unified;
+ cache-level = <2>;
next-level-cache = <&L3>;
};
L2_2: l2-cache2 {
+ compatible = "cache";
cache-size = <0x100000>;
cache-line-size = <64>;
cache-sets = <1024>;
cache-unified;
+ cache-level = <2>;
next-level-cache = <&L3>;
};
L2_3: l2-cache3 {
+ compatible = "cache";
cache-size = <0x100000>;
cache-line-size = <64>;
cache-sets = <1024>;
cache-unified;
+ cache-level = <2>;
next-level-cache = <&L3>;
};
L3: l3-cache {
+ compatible = "cache";
cache-level = <3>;
cache-size = <0x800000>;
cache-line-size = <64>;
--
2.25.1
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