From fcf7ff67a2aa6d8055b9b815ad8a28a5231afa1e Mon Sep 17 00:00:00 2001 From: Hui Wang Date: Mon, 31 Jul 2023 16:46:14 +0800 Subject: [PATCH] arm64: dts: ls1028a: add l1 and l2 cache info When we ran the stress-ng cache related stressors, we got the log as below: ubuntu@ubuntu:~$ stress-ng --l1cache 4 stress-ng: info: [656] defaulting to a 86400 second (1 day, 0.00 secs) run per stressor stress-ng: info: [656] dispatching hogs: 4 l1cache stress-ng: info: [657] stress-ng-l1cache: skipping stressor, cannot determine cache level 1 information from kernel This is because the l1 and l2 cache info is missing in the devicetree, ls1028a has dual cortex-a72 cores and has 48KB icache, 32KB dcache and 1MB l2 ucache: - icache is 3-way set associative - dcache is 2-way set associative - l2cache is 16-way set associative - line size are 64bytes Signed-off-by: Hui Wang Signed-off-by: Shawn Guo --- arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi index 9cbb31191cf92..eefe3577d94e0 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi @@ -28,6 +28,12 @@ reg = <0x0>; enable-method = "psci"; clocks = <&clockgen QORIQ_CLK_CMUX 0>; + 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 = <&l2>; cpu-idle-states = <&CPU_PW20>; #cooling-cells = <2>; @@ -39,6 +45,12 @@ reg = <0x1>; enable-method = "psci"; clocks = <&clockgen QORIQ_CLK_CMUX 0>; + 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 = <&l2>; cpu-idle-states = <&CPU_PW20>; #cooling-cells = <2>; @@ -48,6 +60,9 @@ compatible = "cache"; cache-level = <2>; cache-unified; + cache-size = <0x100000>; + cache-line-size = <64>; + cache-sets = <1024>; }; }; -- 2.30.2