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a=openpgp; fpr=4B5278785C97ACF79C3C688301CA08B7A6C50824 Add information about CPU caches in the P-cluster of Apple T2 SoC. Due to "Apple Fusion Architecture" big.LITTLE switcher, only caches from one of the clusters can be used at any given moment. Signed-off-by: Nick Chan --- arch/arm64/boot/dts/apple/t8012.dtsi | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm64/boot/dts/apple/t8012.dtsi b/arch/arm64/boot/dts/apple/t8012.dtsi index 42df2f51ad7be4c4533e76d18e49a9a747b6b7a8..a259e5735d938cfa5b29cee6c754c7a3c0aaae08 100644 --- a/arch/arm64/boot/dts/apple/t8012.dtsi +++ b/arch/arm64/boot/dts/apple/t8012.dtsi @@ -36,6 +36,9 @@ cpu0: cpu@10000 { performance-domains = <&cpufreq>; enable-method = "spin-table"; device_type = "cpu"; + next-level-cache = <&l2_cache>; + i-cache-size = <0x10000>; /* P-core */ + d-cache-size = <0x10000>; /* P-core */ }; cpu1: cpu@10001 { @@ -46,6 +49,16 @@ cpu1: cpu@10001 { performance-domains = <&cpufreq>; enable-method = "spin-table"; device_type = "cpu"; + next-level-cache = <&l2_cache>; + i-cache-size = <0x10000>; /* P-core */ + d-cache-size = <0x10000>; /* P-core */ + }; + + l2_cache: l2-cache { + compatible = "cache"; + cache-level = <2>; + cache-unified; + cache-size = <0x300000>; /* P-cluster */ }; }; -- 2.48.1