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From: Thierry Reding <thierry.reding@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Rob Herring <robh+dt@kernel.org>
Cc: Robin Murphy <robin.murphy@arm.com>,
	Jon Hunter <jonathanh@nvidia.com>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-tegra@vger.kernel.org
Subject: [PATCH 2/2] arm64: tegra: Describe Tegra234 CPU hierarchy
Date: Fri, 12 Nov 2021 14:19:04 +0100	[thread overview]
Message-ID: <20211112131904.3683428-2-thierry.reding@gmail.com> (raw)
In-Reply-To: <20211112131904.3683428-1-thierry.reding@gmail.com>

From: Thierry Reding <treding@nvidia.com>

The NVIDIA Tegra234 SoC has 3 clusters of 4 Cortex-A78AE CPU cores each,
for a total of 12 CPUs. Each CPU has 64 KiB instruction and data caches
with each cluster having an additional 256 KiB unified L2 cache and a 2
MiB L3 cache.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra234.dtsi | 365 ++++++++++++++++++++++-
 1 file changed, 363 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index 104e5fdd5f8a..db24f48edc9f 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -736,12 +736,373 @@ cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		cpu@0 {
+		cpu0_0: cpu@0 {
+			compatible = "arm,cortex-a78";
 			device_type = "cpu";
-			reg = <0x000>;
+			reg = <0x00000>;
 
 			enable-method = "psci";
+
+			i-cache-size = <65536>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <65536>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2c0_0>;
+		};
+
+		cpu0_1: cpu@100 {
+			compatible = "arm,cortex-a78";
+			device_type = "cpu";
+			reg = <0x00100>;
+
+			enable-method = "psci";
+
+			i-cache-size = <65536>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <65536>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2c0_1>;
+		};
+
+		cpu0_2: cpu@200 {
+			compatible = "arm,cortex-a78";
+			device_type = "cpu";
+			reg = <0x00200>;
+
+			enable-method = "psci";
+
+			i-cache-size = <65536>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <65536>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2c0_2>;
+		};
+
+		cpu0_3: cpu@300 {
+			compatible = "arm,cortex-a78";
+			device_type = "cpu";
+			reg = <0x00300>;
+
+			enable-method = "psci";
+
+			i-cache-size = <65536>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <65536>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2c0_3>;
+		};
+
+		cpu1_0: cpu@10000 {
+			compatible = "arm,cortex-a78";
+			device_type = "cpu";
+			reg = <0x10000>;
+
+			enable-method = "psci";
+
+			i-cache-size = <65536>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <65536>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2c1_0>;
+		};
+
+		cpu1_1: cpu@10100 {
+			compatible = "arm,cortex-a78";
+			device_type = "cpu";
+			reg = <0x10100>;
+
+			enable-method = "psci";
+
+			i-cache-size = <65536>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <65536>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2c1_1>;
+		};
+
+		cpu1_2: cpu@10200 {
+			compatible = "arm,cortex-a78";
+			device_type = "cpu";
+			reg = <0x10200>;
+
+			enable-method = "psci";
+
+			i-cache-size = <65536>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <65536>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2c1_2>;
+		};
+
+		cpu1_3: cpu@10300 {
+			compatible = "arm,cortex-a78";
+			device_type = "cpu";
+			reg = <0x10300>;
+
+			enable-method = "psci";
+
+			i-cache-size = <65536>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <65536>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2c1_3>;
+		};
+
+		cpu2_0: cpu@20000 {
+			compatible = "arm,cortex-a78";
+			device_type = "cpu";
+			reg = <0x20000>;
+
+			enable-method = "psci";
+
+			i-cache-size = <65536>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <65536>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2c2_0>;
+		};
+
+		cpu2_1: cpu@20100 {
+			compatible = "arm,cortex-a78";
+			device_type = "cpu";
+			reg = <0x20100>;
+
+			enable-method = "psci";
+
+			i-cache-size = <65536>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <65536>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2c2_1>;
+		};
+
+		cpu2_2: cpu@20200 {
+			compatible = "arm,cortex-a78";
+			device_type = "cpu";
+			reg = <0x20200>;
+
+			enable-method = "psci";
+
+			i-cache-size = <65536>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <65536>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2c2_2>;
+		};
+
+		cpu2_3: cpu@20300 {
+			compatible = "arm,cortex-a78";
+			device_type = "cpu";
+			reg = <0x20300>;
+
+			enable-method = "psci";
+
+			i-cache-size = <65536>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <65536>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2c2_3>;
+		};
+
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&cpu0_0>;
+				};
+
+				core1 {
+					cpu = <&cpu0_1>;
+				};
+
+				core2 {
+					cpu = <&cpu0_2>;
+				};
+
+				core3 {
+					cpu = <&cpu0_3>;
+				};
+			};
+
+			cluster1 {
+				core0 {
+					cpu = <&cpu1_0>;
+				};
+
+				core1 {
+					cpu = <&cpu1_1>;
+				};
+
+				core2 {
+					cpu = <&cpu1_2>;
+				};
+
+				core3 {
+					cpu = <&cpu1_3>;
+				};
+			};
+
+			cluster2 {
+				core0 {
+					cpu = <&cpu2_0>;
+				};
+
+				core1 {
+					cpu = <&cpu2_1>;
+				};
+
+				core2 {
+					cpu = <&cpu2_2>;
+				};
+
+				core3 {
+					cpu = <&cpu2_3>;
+				};
+			};
+		};
+
+		l2c0_0: l2-cache00 {
+			cache-size = <262144>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+			cache-unified;
+			next-level-cache = <&l3c0>;
+		};
+
+		l2c0_1: l2-cache01 {
+			cache-size = <262144>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+			cache-unified;
+			next-level-cache = <&l3c0>;
 		};
+
+		l2c0_2: l2-cache02 {
+			cache-size = <262144>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+			cache-unified;
+			next-level-cache = <&l3c0>;
+		};
+
+		l2c0_3: l2-cache03 {
+			cache-size = <262144>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+			cache-unified;
+			next-level-cache = <&l3c0>;
+		};
+
+		l2c1_0: l2-cache10 {
+			cache-size = <262144>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+			cache-unified;
+			next-level-cache = <&l3c1>;
+		};
+
+		l2c1_1: l2-cache11 {
+			cache-size = <262144>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+			cache-unified;
+			next-level-cache = <&l3c1>;
+		};
+
+		l2c1_2: l2-cache12 {
+			cache-size = <262144>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+			cache-unified;
+			next-level-cache = <&l3c1>;
+		};
+
+		l2c1_3: l2-cache13 {
+			cache-size = <262144>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+			cache-unified;
+			next-level-cache = <&l3c1>;
+		};
+
+		l2c2_0: l2-cache20 {
+			cache-size = <262144>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+			cache-unified;
+			next-level-cache = <&l3c2>;
+		};
+
+		l2c2_1: l2-cache21 {
+			cache-size = <262144>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+			cache-unified;
+			next-level-cache = <&l3c2>;
+		};
+
+		l2c2_2: l2-cache22 {
+			cache-size = <262144>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+			cache-unified;
+			next-level-cache = <&l3c2>;
+		};
+
+		l2c2_3: l2-cache23 {
+			cache-size = <262144>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+			cache-unified;
+			next-level-cache = <&l3c2>;
+		};
+
+		l3c0: l3-cache0 {
+			cache-size = <2097152>;
+			cache-line-size = <64>;
+			cache-sets = <2048>;
+		};
+
+		l3c1: l3-cache1 {
+			cache-size = <2097152>;
+			cache-line-size = <64>;
+			cache-sets = <2048>;
+		};
+
+		l3c2: l3-cache2 {
+			cache-size = <2097152>;
+			cache-line-size = <64>;
+			cache-sets = <2048>;
+		};
+	};
+
+	pmu {
+		compatible = "arm,armv8-pmuv3";
+		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;
+		status = "okay";
 	};
 
 	psci {
-- 
2.33.1


  reply	other threads:[~2021-11-12 13:19 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-12 13:19 [PATCH 1/2] dt-bindings: arm: cpus: Add ARM Cortex-A78 Thierry Reding
2021-11-12 13:19 ` Thierry Reding [this message]
2021-11-29 21:06   ` [PATCH 2/2] arm64: tegra: Describe Tegra234 CPU hierarchy Rob Herring
2021-11-29 22:53     ` Robin Murphy
2021-12-14 12:27       ` Thierry Reding
2021-11-12 13:39 ` [PATCH 1/2] dt-bindings: arm: cpus: Add ARM Cortex-A78 Robin Murphy
2021-11-29 21:06 ` Rob Herring

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