[PATCH v2] arm64: dts: add cpu cache information to ExynosAuto-v920

[Devang Tailor]

Add CPU caches information to its dt nodes so that the same is
available to userspace via sysfs. This SoC has 64/64 KB I/D cache and
256KB of L2 cache for each core, 2 MB of shared L3 cache for each quad
cpu cluster and 1 MB of shared L3 cache for the dual cpu cluster.

Signed-off-by: Devang Tailor <dev.tailor at samsung.com>

---
Changes in v2:
- Added L3 cache for all the three cpu clusters
- Corrected L2 cache numbering as a part of review comments from Krzysztof
  and updated as per cpus clusters.
- Link to v1: https://patchwork.kernel.org/project/linux-arm-kernel/patch/20241231064350.523713-1-dev.tailor@samsung.com/
---
 .../arm64/boot/dts/exynos/exynosautov920.dtsi | 127 ++++++++++++++++++
 1 file changed, 127 insertions(+)

diff --git a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi
index eb446cdc4ab6..a3fd503c1b21 100644
--- a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi
@@ -89,6 +89,13 @@ cpu0: cpu at 0 {
 			compatible = "arm,cortex-a78ae";
 			reg = <0x0 0x0>;
 			enable-method = "psci";
+			i-cache-size = <0x10000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x10000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2_cache_cl0>;
 		};
 
 		cpu1: cpu at 100 {
@@ -96,6 +103,13 @@ cpu1: cpu at 100 {
 			compatible = "arm,cortex-a78ae";
 			reg = <0x0 0x100>;
 			enable-method = "psci";
+			i-cache-size = <0x10000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x10000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2_cache_cl0>;
 		};
 
 		cpu2: cpu at 200 {
@@ -103,6 +117,13 @@ cpu2: cpu at 200 {
 			compatible = "arm,cortex-a78ae";
 			reg = <0x0 0x200>;
 			enable-method = "psci";
+			i-cache-size = <0x10000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x10000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2_cache_cl0>;
 		};
 
 		cpu3: cpu at 300 {
@@ -110,6 +131,13 @@ cpu3: cpu at 300 {
 			compatible = "arm,cortex-a78ae";
 			reg = <0x0 0x300>;
 			enable-method = "psci";
+			i-cache-size = <0x10000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x10000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2_cache_cl0>;
 		};
 
 		cpu4: cpu at 10000 {
@@ -117,6 +145,13 @@ cpu4: cpu at 10000 {
 			compatible = "arm,cortex-a78ae";
 			reg = <0x0 0x10000>;
 			enable-method = "psci";
+			i-cache-size = <0x10000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x10000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2_cache_cl1>;
 		};
 
 		cpu5: cpu at 10100 {
@@ -124,6 +159,13 @@ cpu5: cpu at 10100 {
 			compatible = "arm,cortex-a78ae";
 			reg = <0x0 0x10100>;
 			enable-method = "psci";
+			i-cache-size = <0x10000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x10000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2_cache_cl1>;
 		};
 
 		cpu6: cpu at 10200 {
@@ -131,6 +173,13 @@ cpu6: cpu at 10200 {
 			compatible = "arm,cortex-a78ae";
 			reg = <0x0 0x10200>;
 			enable-method = "psci";
+			i-cache-size = <0x10000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x10000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2_cache_cl1>;
 		};
 
 		cpu7: cpu at 10300 {
@@ -138,6 +187,13 @@ cpu7: cpu at 10300 {
 			compatible = "arm,cortex-a78ae";
 			reg = <0x0 0x10300>;
 			enable-method = "psci";
+			i-cache-size = <0x10000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x10000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2_cache_cl1>;
 		};
 
 		cpu8: cpu at 20000 {
@@ -145,6 +201,13 @@ cpu8: cpu at 20000 {
 			compatible = "arm,cortex-a78ae";
 			reg = <0x0 0x20000>;
 			enable-method = "psci";
+			i-cache-size = <0x10000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x10000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2_cache_cl2>;
 		};
 
 		cpu9: cpu at 20100 {
@@ -152,6 +215,70 @@ cpu9: cpu at 20100 {
 			compatible = "arm,cortex-a78ae";
 			reg = <0x0 0x20100>;
 			enable-method = "psci";
+			i-cache-size = <0x10000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x10000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2_cache_cl2>;
+		};
+
+		l2_cache_cl0: l2-cache0 {
+			compatible = "cache";
+			cache-level = <2>;
+			cache-unified;
+			cache-size = <0x40000>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+			next-level-cache = <&l3_cache_cl0>;
+		};
+
+		l2_cache_cl1: l2-cache1 {
+			compatible = "cache";
+			cache-level = <2>;
+			cache-unified;
+			cache-size = <0x40000>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+			next-level-cache = <&l3_cache_cl1>;
+		};
+
+		l2_cache_cl2: l2-cache2 {
+			compatible = "cache";
+			cache-level = <2>;
+			cache-unified;
+			cache-size = <0x40000>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+			next-level-cache = <&l3_cache_cl2>;
+		};
+
+		l3_cache_cl0: l3-cache0 {
+			compatible = "cache";
+			cache-level = <3>;
+			cache-unified;
+			cache-size = <0x200000>;/* 2MB L3 cache for cpu cluster-0 */
+			cache-line-size = <64>;
+			cache-sets = <2048>;
+		};
+
+		l3_cache_cl1: l3-cache1 {
+			compatible = "cache";
+			cache-level = <3>;
+			cache-unified;
+			cache-size = <0x200000>;/* 2MB L3 cache for cpu cluster-1 */
+			cache-line-size = <64>;
+			cache-sets = <2048>;
+		};
+
+		l3_cache_cl2: l3-cache2 {
+			compatible = "cache";
+			cache-level = <3>;
+			cache-unified;
+			cache-size = <0x100000>;/* 1MB L3 cache for cpu cluster-2 */
+			cache-line-size = <64>;
+			cache-sets = <1365>;
 		};
 	};
 
-- 
2.34.1