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Date: Thu, 17 Jun 2021 17:07:39 +0530
From: Alim Akhtar <alim.akhtar@...sung.com>
To: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
robh+dt@...nel.org
Cc: krzysztof.kozlowski@...onical.com,
linux-samsung-soc@...r.kernel.org,
Alim Akhtar <alim.akhtar@...sung.com>
Subject: [PATCH 2/2] arm64: dts: exynos5433: Add cpu cache information
This patch adds cpu caches information to its dt
nodes so that the same is available to userspace
via sysfs.
This SoC has 48/32 KB I/D cache for each A57 cores
with 2MB L2 cache.
And 32/32 KB I/D cache for each A53 cores with
256KB L2 cache.
Signed-off-by: Alim Akhtar <alim.akhtar@...sung.com>
---
arch/arm64/boot/dts/exynos/exynos5433.dtsi | 70 ++++++++++++++++++++++
1 file changed, 70 insertions(+)
diff --git a/arch/arm64/boot/dts/exynos/exynos5433.dtsi b/arch/arm64/boot/dts/exynos/exynos5433.dtsi
index 18a912eee360..8183a59e9046 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos5433.dtsi
@@ -62,6 +62,13 @@
clock-names = "apolloclk";
operating-points-v2 = <&cluster_a53_opp_table>;
#cooling-cells = <2>;
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
+ next-level-cache = <&apollo_l2>;
};
cpu1: cpu@101 {
@@ -72,6 +79,13 @@
clock-frequency = <1300000000>;
operating-points-v2 = <&cluster_a53_opp_table>;
#cooling-cells = <2>;
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
+ next-level-cache = <&apollo_l2>;
};
cpu2: cpu@102 {
@@ -82,6 +96,13 @@
clock-frequency = <1300000000>;
operating-points-v2 = <&cluster_a53_opp_table>;
#cooling-cells = <2>;
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
+ next-level-cache = <&apollo_l2>;
};
cpu3: cpu@103 {
@@ -92,6 +113,13 @@
clock-frequency = <1300000000>;
operating-points-v2 = <&cluster_a53_opp_table>;
#cooling-cells = <2>;
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
+ next-level-cache = <&apollo_l2>;
};
cpu4: cpu@0 {
@@ -104,6 +132,13 @@
clock-names = "atlasclk";
operating-points-v2 = <&cluster_a57_opp_table>;
#cooling-cells = <2>;
+ i-cache-size = <0xc000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <256>;
+ next-level-cache = <&atlas_l2>;
};
cpu5: cpu@1 {
@@ -114,6 +149,13 @@
clock-frequency = <1900000000>;
operating-points-v2 = <&cluster_a57_opp_table>;
#cooling-cells = <2>;
+ i-cache-size = <0xc000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <256>;
+ next-level-cache = <&atlas_l2>;
};
cpu6: cpu@2 {
@@ -124,6 +166,13 @@
clock-frequency = <1900000000>;
operating-points-v2 = <&cluster_a57_opp_table>;
#cooling-cells = <2>;
+ i-cache-size = <0xc000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <256>;
+ next-level-cache = <&atlas_l2>;
};
cpu7: cpu@3 {
@@ -134,6 +183,27 @@
clock-frequency = <1900000000>;
operating-points-v2 = <&cluster_a57_opp_table>;
#cooling-cells = <2>;
+ i-cache-size = <0xc000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <256>;
+ next-level-cache = <&atlas_l2>;
+ };
+
+ atlas_l2: l2-cache0 {
+ compatible = "cache";
+ cache-size = <0x200000>;
+ cache-line-size = <64>;
+ cache-sets = <2048>;
+ };
+
+ apollo_l2: l2-cache1 {
+ compatible = "cache";
+ cache-size = <0x40000>;
+ cache-line-size = <64>;
+ cache-sets = <256>;
};
};
--
2.17.1
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