From 6a2f0b2d3b74e3e4002dc4143887637cd216e531 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Tue, 3 Dec 2019 15:23:06 +0000 Subject: [PATCH] dt: amd-seattle: add a description of the CPUs and caches Add a DT description of the CPU and cache hierarchy as found on the AMD Seattle SOC. Given the tight coupling of the PMU with the CPUs, move the PMU node into the cpu .dtsi file as well, and add the missing affinity description. Signed-off-by: Ard Biesheuvel Signed-off-by: Arnd Bergmann --- arch/arm64/boot/dts/amd/amd-overdrive-rev-b0.dts | 1 + arch/arm64/boot/dts/amd/amd-overdrive-rev-b1.dts | 1 + arch/arm64/boot/dts/amd/amd-seattle-cpus.dtsi | 224 +++++++++++++++++++++++ arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi | 12 -- 4 files changed, 226 insertions(+), 12 deletions(-) create mode 100644 arch/arm64/boot/dts/amd/amd-seattle-cpus.dtsi diff --git a/arch/arm64/boot/dts/amd/amd-overdrive-rev-b0.dts b/arch/arm64/boot/dts/amd/amd-overdrive-rev-b0.dts index 4997a74..c290d1c 100644 --- a/arch/arm64/boot/dts/amd/amd-overdrive-rev-b0.dts +++ b/arch/arm64/boot/dts/amd/amd-overdrive-rev-b0.dts @@ -9,6 +9,7 @@ /dts-v1/; /include/ "amd-seattle-soc.dtsi" +/include/ "amd-seattle-cpus.dtsi" / { model = "AMD Seattle (Rev.B0) Development Board (Overdrive)"; diff --git a/arch/arm64/boot/dts/amd/amd-overdrive-rev-b1.dts b/arch/arm64/boot/dts/amd/amd-overdrive-rev-b1.dts index 92cef05..e0926f6b 100644 --- a/arch/arm64/boot/dts/amd/amd-overdrive-rev-b1.dts +++ b/arch/arm64/boot/dts/amd/amd-overdrive-rev-b1.dts @@ -9,6 +9,7 @@ /dts-v1/; /include/ "amd-seattle-soc.dtsi" +/include/ "amd-seattle-cpus.dtsi" / { model = "AMD Seattle (Rev.B1) Development Board (Overdrive)"; diff --git a/arch/arm64/boot/dts/amd/amd-seattle-cpus.dtsi b/arch/arm64/boot/dts/amd/amd-seattle-cpus.dtsi new file mode 100644 index 0000000..93688a0 --- /dev/null +++ b/arch/arm64/boot/dts/amd/amd-seattle-cpus.dtsi @@ -0,0 +1,224 @@ +// SPDX-License-Identifier: GPL-2.0 + +/ { + cpus { + #address-cells = <0x1>; + #size-cells = <0x0>; + + cpu-map { + cluster0 { + core0 { + cpu = <&CPU0>; + }; + core1 { + cpu = <&CPU1>; + }; + }; + cluster1 { + core0 { + cpu = <&CPU2>; + }; + core1 { + cpu = <&CPU3>; + }; + }; + cluster2 { + core0 { + cpu = <&CPU4>; + }; + core1 { + cpu = <&CPU5>; + }; + }; + cluster3 { + core0 { + cpu = <&CPU6>; + }; + core1 { + cpu = <&CPU7>; + }; + }; + }; + + CPU0: cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a57"; + reg = <0x0>; + enable-method = "psci"; + + 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>; + l2-cache = <&L2_0>; + + }; + + CPU1: cpu@1 { + device_type = "cpu"; + compatible = "arm,cortex-a57"; + reg = <0x1>; + enable-method = "psci"; + + 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>; + l2-cache = <&L2_0>; + }; + + CPU2: cpu@100 { + device_type = "cpu"; + compatible = "arm,cortex-a57"; + reg = <0x100>; + enable-method = "psci"; + + 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>; + l2-cache = <&L2_1>; + }; + + CPU3: cpu@101 { + device_type = "cpu"; + compatible = "arm,cortex-a57"; + reg = <0x101>; + enable-method = "psci"; + + 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>; + l2-cache = <&L2_1>; + }; + + CPU4: cpu@200 { + device_type = "cpu"; + compatible = "arm,cortex-a57"; + reg = <0x200>; + enable-method = "psci"; + + 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>; + l2-cache = <&L2_2>; + }; + + CPU5: cpu@201 { + device_type = "cpu"; + compatible = "arm,cortex-a57"; + reg = <0x201>; + enable-method = "psci"; + + 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>; + l2-cache = <&L2_2>; + }; + + CPU6: cpu@300 { + device_type = "cpu"; + compatible = "arm,cortex-a57"; + reg = <0x300>; + enable-method = "psci"; + + 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>; + l2-cache = <&L2_3>; + }; + + CPU7: cpu@301 { + device_type = "cpu"; + compatible = "arm,cortex-a57"; + reg = <0x301>; + enable-method = "psci"; + + 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>; + l2-cache = <&L2_3>; + }; + }; + + L2_0: l2-cache0 { + cache-size = <0x100000>; + cache-line-size = <64>; + cache-sets = <1024>; + cache-unified; + next-level-cache = <&L3>; + }; + + L2_1: l2-cache1 { + cache-size = <0x100000>; + cache-line-size = <64>; + cache-sets = <1024>; + cache-unified; + next-level-cache = <&L3>; + }; + + L2_2: l2-cache2 { + cache-size = <0x100000>; + cache-line-size = <64>; + cache-sets = <1024>; + cache-unified; + next-level-cache = <&L3>; + }; + + L2_3: l2-cache3 { + cache-size = <0x100000>; + cache-line-size = <64>; + cache-sets = <1024>; + cache-unified; + next-level-cache = <&L3>; + }; + + L3: l3-cache { + cache-level = <3>; + cache-size = <0x800000>; + cache-line-size = <64>; + cache-sets = <8192>; + cache-unified; + }; + + pmu { + compatible = "arm,cortex-a57-pmu"; + interrupts = <0x0 0x7 0x4>, + <0x0 0x8 0x4>, + <0x0 0x9 0x4>, + <0x0 0xa 0x4>, + <0x0 0xb 0x4>, + <0x0 0xc 0x4>, + <0x0 0xd 0x4>, + <0x0 0xe 0x4>; + interrupt-affinity = <&CPU0>, + <&CPU1>, + <&CPU2>, + <&CPU3>, + <&CPU4>, + <&CPU5>, + <&CPU6>, + <&CPU7>; + }; +}; diff --git a/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi b/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi index 547a6bf..6900205 100644 --- a/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi +++ b/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi @@ -38,18 +38,6 @@ <1 10 0xff04>; }; - pmu { - compatible = "arm,armv8-pmuv3"; - interrupts = <0 7 4>, - <0 8 4>, - <0 9 4>, - <0 10 4>, - <0 11 4>, - <0 12 4>, - <0 13 4>, - <0 14 4>; - }; - smb0: smb { compatible = "simple-bus"; #address-cells = <2>; -- 2.7.4