Re: [PATCH 2/2] arm64: dts: Add Apple SoC GPU
From: Janne Grunau <j@jannau.net>
Date: 2025-06-11 20:00:06
Also in:
asahi, dri-devel, linux-devicetree, lkml
On Wed, Jun 11, 2025 at 07:32:17PM +0200, Sasha Finkelstein via B4 Relay wrote:
From: Sasha Finkelstein <redacted> Add device tree entries for GPUs in M-series SoCs Signed-off-by: Sasha Finkelstein <redacted> --- arch/arm64/boot/dts/apple/t6000.dtsi | 4 ++++ arch/arm64/boot/dts/apple/t6001.dtsi | 4 ++++ arch/arm64/boot/dts/apple/t6002.dtsi | 4 ++++ arch/arm64/boot/dts/apple/t600x-common.dtsi | 34 ++++++++++++++++++++++++++++++++++ arch/arm64/boot/dts/apple/t600x-die0.dtsi | 28 ++++++++++++++++++++++++++++ arch/arm64/boot/dts/apple/t8103.dtsi | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ arch/arm64/boot/dts/apple/t8112.dtsi | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 198 insertions(+)
...
quoted hunk ↗ jump to hunk
diff --git a/arch/arm64/boot/dts/apple/t600x-common.dtsi b/arch/arm64/boot/dts/apple/t600x-common.dtsi index 87dfc13d74171f62bf3087401918d9d41eaac560..329bd084b63e3688547166a8d0c3d9ace5d6d937 100644 --- a/arch/arm64/boot/dts/apple/t600x-common.dtsi +++ b/arch/arm64/boot/dts/apple/t600x-common.dtsi@@ -11,6 +11,10 @@ / { #address-cells = <2>; #size-cells = <2>; + aliases { + gpu = &gpu; + }; + cpus { #address-cells = <2>; #size-cells = <0>;@@ -378,4 +382,34 @@ nco_clkref: clock-ref-nco { #clock-cells = <0>; clock-output-names = "nco_ref"; }; + + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + gpu_globals: globals { + reg = <0x0 0 0 0>;
all memory-regions with invalid address should be disabled. iirc the kernel and/or u-boot will try to map those which does not end well. Janne