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Date: Tue, 6 Dec 2022 12:23:29 +0100
From: AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>
To: matthias.bgg@...il.com
Cc: robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
nfraprado@...labora.com, kernel@...labora.com,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>
Subject: [PATCH 4/5] arm64: dts: mt8183: Add complete CPU caches information
This SoC features two clusters composed of:
- 4x Cortex A53: 32KB I-cache, 2-way set associative,
32KB D-cache, 4-way set associative,
unified 1MB L2 cache, 16-way set associative;
- 4x Cortex A73: 64KB I-cache and 64KB D-cache, 4-way set associative,
unified 1MB L2 cache, 16-way set associative;
With that in mind, add the appropriate properties needed to specify the
caches information for this SoC, which will now be correctly exported
to sysfs.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
arch/arm64/boot/dts/mediatek/mt8183.dtsi | 74 ++++++++++++++++++++++++
1 file changed, 74 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index a70b669c49ba..12f61cd20da5 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -336,6 +336,13 @@ cpu0: cpu@0 {
clock-names = "cpu", "intermediate";
operating-points-v2 = <&cluster0_opp>;
dynamic-power-coefficient = <84>;
+ i-cache-size = <32768>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <32768>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
+ next-level-cache = <&l2_0>;
#cooling-cells = <2>;
mediatek,cci = <&cci>;
};
@@ -352,6 +359,13 @@ cpu1: cpu@1 {
clock-names = "cpu", "intermediate";
operating-points-v2 = <&cluster0_opp>;
dynamic-power-coefficient = <84>;
+ i-cache-size = <32768>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <32768>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
+ next-level-cache = <&l2_0>;
#cooling-cells = <2>;
mediatek,cci = <&cci>;
};
@@ -368,6 +382,13 @@ cpu2: cpu@2 {
clock-names = "cpu", "intermediate";
operating-points-v2 = <&cluster0_opp>;
dynamic-power-coefficient = <84>;
+ i-cache-size = <32768>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <32768>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
+ next-level-cache = <&l2_0>;
#cooling-cells = <2>;
mediatek,cci = <&cci>;
};
@@ -384,6 +405,13 @@ cpu3: cpu@3 {
clock-names = "cpu", "intermediate";
operating-points-v2 = <&cluster0_opp>;
dynamic-power-coefficient = <84>;
+ i-cache-size = <32768>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <32768>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
+ next-level-cache = <&l2_0>;
#cooling-cells = <2>;
mediatek,cci = <&cci>;
};
@@ -400,6 +428,13 @@ cpu4: cpu@100 {
clock-names = "cpu", "intermediate";
operating-points-v2 = <&cluster1_opp>;
dynamic-power-coefficient = <211>;
+ i-cache-size = <65536>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <65536>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <256>;
+ next-level-cache = <&l2_1>;
#cooling-cells = <2>;
mediatek,cci = <&cci>;
};
@@ -416,6 +451,13 @@ cpu5: cpu@101 {
clock-names = "cpu", "intermediate";
operating-points-v2 = <&cluster1_opp>;
dynamic-power-coefficient = <211>;
+ i-cache-size = <65536>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <65536>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <256>;
+ next-level-cache = <&l2_1>;
#cooling-cells = <2>;
mediatek,cci = <&cci>;
};
@@ -432,6 +474,13 @@ cpu6: cpu@102 {
clock-names = "cpu", "intermediate";
operating-points-v2 = <&cluster1_opp>;
dynamic-power-coefficient = <211>;
+ i-cache-size = <65536>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <65536>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <256>;
+ next-level-cache = <&l2_1>;
#cooling-cells = <2>;
mediatek,cci = <&cci>;
};
@@ -448,6 +497,13 @@ cpu7: cpu@103 {
clock-names = "cpu", "intermediate";
operating-points-v2 = <&cluster1_opp>;
dynamic-power-coefficient = <211>;
+ i-cache-size = <65536>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <65536>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <256>;
+ next-level-cache = <&l2_1>;
#cooling-cells = <2>;
mediatek,cci = <&cci>;
};
@@ -481,6 +537,24 @@ CLUSTER_SLEEP1: cluster-sleep-1 {
min-residency-us = <1300>;
};
};
+
+ l2_0: l2-cache0 {
+ compatible = "cache";
+ cache-level = <2>;
+ cache-size = <1048576>;
+ cache-line-size = <64>;
+ cache-sets = <1024>;
+ cache-unified;
+ };
+
+ l2_1: l2-cache1 {
+ compatible = "cache";
+ cache-level = <2>;
+ cache-size = <1048576>;
+ cache-line-size = <64>;
+ cache-sets = <1024>;
+ cache-unified;
+ };
};
gpu_opp_table: opp-table-0 {
--
2.38.1
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