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From: "Peng Fan (OSS)" <peng.fan@oss.nxp.com>
To: robh+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de
Cc: kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
	p.zabel@pengutronix.de, l.stach@pengutronix.de, krzk@kernel.org,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Peng Fan <peng.fan@nxp.com>
Subject: [PATCH 1/3] arm64: dts: imx8m: add cache info
Date: Fri, 12 Nov 2021 14:26:02 +0800	[thread overview]
Message-ID: <20211112062604.3485365-2-peng.fan@oss.nxp.com> (raw)
In-Reply-To: <20211112062604.3485365-1-peng.fan@oss.nxp.com>

From: Peng Fan <peng.fan@nxp.com>

i.MX8M Family use A53 Cores and has 32KB ICache with 32KB DCache.
 - Icache is 2-way set associative
 - Dcache is 4-way set associative
 - L2cache is 16-way set associative
 - Line size are 64bytes

Except i.MX8MQ has 1MB L2 Cache, others has 512KB L2 Cache.

So add the cache info in device tree and let use could see that
from /sys/devices/system/cpu/cpu[x]/cache/

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8mm.dtsi | 28 +++++++++++++++++++++++
 arch/arm64/boot/dts/freescale/imx8mn.dtsi | 28 +++++++++++++++++++++++
 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 28 +++++++++++++++++++++++
 arch/arm64/boot/dts/freescale/imx8mq.dtsi | 28 +++++++++++++++++++++++
 4 files changed, 112 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index c2f3f118f82e..5b9c2cca9ac4 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -65,6 +65,12 @@ A53_0: cpu@0 {
 			clock-latency = <61036>; /* two CLK32 periods */
 			clocks = <&clk IMX8MM_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			operating-points-v2 = <&a53_opp_table>;
 			nvmem-cells = <&cpu_speed_grade>;
@@ -80,6 +86,12 @@ A53_1: cpu@1 {
 			clock-latency = <61036>; /* two CLK32 periods */
 			clocks = <&clk IMX8MM_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			operating-points-v2 = <&a53_opp_table>;
 			cpu-idle-states = <&cpu_pd_wait>;
@@ -93,6 +105,12 @@ A53_2: cpu@2 {
 			clock-latency = <61036>; /* two CLK32 periods */
 			clocks = <&clk IMX8MM_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			operating-points-v2 = <&a53_opp_table>;
 			cpu-idle-states = <&cpu_pd_wait>;
@@ -106,6 +124,12 @@ A53_3: cpu@3 {
 			clock-latency = <61036>; /* two CLK32 periods */
 			clocks = <&clk IMX8MM_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			operating-points-v2 = <&a53_opp_table>;
 			cpu-idle-states = <&cpu_pd_wait>;
@@ -114,6 +138,10 @@ A53_3: cpu@3 {
 
 		A53_L2: l2-cache0 {
 			compatible = "cache";
+			cache-level = <2>;
+			cache-size = <0x80000>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index da6c942fb7f9..ba23b416b5e6 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -63,6 +63,12 @@ A53_0: cpu@0 {
 			clock-latency = <61036>;
 			clocks = <&clk IMX8MN_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			operating-points-v2 = <&a53_opp_table>;
 			nvmem-cells = <&cpu_speed_grade>;
@@ -78,6 +84,12 @@ A53_1: cpu@1 {
 			clock-latency = <61036>;
 			clocks = <&clk IMX8MN_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			operating-points-v2 = <&a53_opp_table>;
 			cpu-idle-states = <&cpu_pd_wait>;
@@ -91,6 +103,12 @@ A53_2: cpu@2 {
 			clock-latency = <61036>;
 			clocks = <&clk IMX8MN_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			operating-points-v2 = <&a53_opp_table>;
 			cpu-idle-states = <&cpu_pd_wait>;
@@ -104,6 +122,12 @@ A53_3: cpu@3 {
 			clock-latency = <61036>;
 			clocks = <&clk IMX8MN_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			operating-points-v2 = <&a53_opp_table>;
 			cpu-idle-states = <&cpu_pd_wait>;
@@ -112,6 +136,10 @@ A53_3: cpu@3 {
 
 		A53_L2: l2-cache0 {
 			compatible = "cache";
+			cache-level = <2>;
+			cache-size = <0x80000>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index 04d259de5667..977783784342 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -51,6 +51,12 @@ A53_0: cpu@0 {
 			clock-latency = <61036>;
 			clocks = <&clk IMX8MP_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			#cooling-cells = <2>;
 		};
@@ -62,6 +68,12 @@ A53_1: cpu@1 {
 			clock-latency = <61036>;
 			clocks = <&clk IMX8MP_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			#cooling-cells = <2>;
 		};
@@ -73,6 +85,12 @@ A53_2: cpu@2 {
 			clock-latency = <61036>;
 			clocks = <&clk IMX8MP_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			#cooling-cells = <2>;
 		};
@@ -84,12 +102,22 @@ A53_3: cpu@3 {
 			clock-latency = <61036>;
 			clocks = <&clk IMX8MP_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			#cooling-cells = <2>;
 		};
 
 		A53_L2: l2-cache0 {
 			compatible = "cache";
+			cache-level = <2>;
+			cache-size = <0x80000>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
index 972766b67a15..95d8b95d6120 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
@@ -102,6 +102,12 @@ A53_0: cpu@0 {
 			clock-latency = <61036>; /* two CLK32 periods */
 			clocks = <&clk IMX8MQ_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			operating-points-v2 = <&a53_opp_table>;
 			#cooling-cells = <2>;
@@ -116,6 +122,12 @@ A53_1: cpu@1 {
 			clock-latency = <61036>; /* two CLK32 periods */
 			clocks = <&clk IMX8MQ_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			operating-points-v2 = <&a53_opp_table>;
 			#cooling-cells = <2>;
@@ -128,6 +140,12 @@ A53_2: cpu@2 {
 			clock-latency = <61036>; /* two CLK32 periods */
 			clocks = <&clk IMX8MQ_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			operating-points-v2 = <&a53_opp_table>;
 			#cooling-cells = <2>;
@@ -140,6 +158,12 @@ A53_3: cpu@3 {
 			clock-latency = <61036>; /* two CLK32 periods */
 			clocks = <&clk IMX8MQ_CLK_ARM>;
 			enable-method = "psci";
+			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 = <&A53_L2>;
 			operating-points-v2 = <&a53_opp_table>;
 			#cooling-cells = <2>;
@@ -147,6 +171,10 @@ A53_3: cpu@3 {
 
 		A53_L2: l2-cache0 {
 			compatible = "cache";
+			cache-level = <2>;
+			cache-size = <0x100000>;
+			cache-line-size = <64>;
+			cache-sets = <1024>;
 		};
 	};
 
-- 
2.25.1


  reply	other threads:[~2021-11-12  6:27 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-12  6:26 [PATCH 0/3] arm64: dts: imx8: add cache info Peng Fan (OSS)
2021-11-12  6:26 ` Peng Fan (OSS) [this message]
2021-11-12  6:26 ` [PATCH 2/3] arm64: dts: imx8qm: " Peng Fan (OSS)
2021-11-12  6:26 ` [PATCH 3/3] arm64: dts: imx8qxp: " Peng Fan (OSS)
2021-12-09 22:15   ` Rob Herring
2021-12-09 22:31     ` Sudeep Holla
2021-11-23  9:26 ` [PATCH 0/3] arm64: dts: imx8: " Shawn Guo

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