Messages in this thread Patch in this message | | | From | Michal Simek <> | Subject | [PATCH 05/23] arm64: zynqmp: Add L2 cache nodes | Date | Tue, 2 May 2023 15:35:33 +0200 |
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From: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Linux kernel throws "cacheinfo: Unable to detect cache hierarchy for CPU 0" warning when booting on zu+ Soc. To fix it add the L2 cache node and let each CPU point to it.
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com> Signed-off-by: Michal Simek <michal.simek@amd.com> ---
arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi index bb0d0be30aa0..c2d80c7967e9 100644 --- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi +++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi @@ -33,6 +33,7 @@ cpu0: cpu@0 { operating-points-v2 = <&cpu_opp_table>; reg = <0x0>; cpu-idle-states = <&CPU_SLEEP_0>; + next-level-cache = <&L2>; }; cpu1: cpu@1 { @@ -42,6 +43,7 @@ cpu1: cpu@1 { reg = <0x1>; operating-points-v2 = <&cpu_opp_table>; cpu-idle-states = <&CPU_SLEEP_0>; + next-level-cache = <&L2>; }; cpu2: cpu@2 { @@ -51,6 +53,7 @@ cpu2: cpu@2 { reg = <0x2>; operating-points-v2 = <&cpu_opp_table>; cpu-idle-states = <&CPU_SLEEP_0>; + next-level-cache = <&L2>; }; cpu3: cpu@3 { @@ -60,6 +63,12 @@ cpu3: cpu@3 { reg = <0x3>; operating-points-v2 = <&cpu_opp_table>; cpu-idle-states = <&CPU_SLEEP_0>; + next-level-cache = <&L2>; + }; + + L2: l2-cache { + compatible = "cache"; + cache-level = <2>; }; idle-states { -- 2.36.1
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