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Message-Id: <20210622130551.67446-2-alim.akhtar@samsung.com>
Date: Tue, 22 Jun 2021 18:35:51 +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 v2 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>
---
-Changes since v1:
* addressed Krzysztof's review comments
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..73aa0fa9b778 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 = <&cluster_a53_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 = <&cluster_a53_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 = <&cluster_a53_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 = <&cluster_a53_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 = <&cluster_a57_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 = <&cluster_a57_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 = <&cluster_a57_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 = <&cluster_a57_l2>;
+ };
+
+ cluster_a57_l2: l2-cache0 {
+ compatible = "cache";
+ cache-size = <0x200000>;
+ cache-line-size = <64>;
+ cache-sets = <2048>;
+ };
+
+ cluster_a53_l2: l2-cache1 {
+ compatible = "cache";
+ cache-size = <0x40000>;
+ cache-line-size = <64>;
+ cache-sets = <256>;
};
};
--
2.17.1
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