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Wed, 11 Jun 2025 16:00:03 -0400 (EDT) Date: Wed, 11 Jun 2025 21:59:59 +0200 From: Janne Grunau To: fnkl.kernel@gmail.com Cc: Sven Peter , Alyssa Rosenzweig , Neal Gompa , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] arm64: dts: Add Apple SoC GPU Message-ID: <20250611195959.GA3141695@robin.jannau.net> References: <20250611-sgx-dt-v1-0-7a11f3885c60@gmail.com> <20250611-sgx-dt-v1-2-7a11f3885c60@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20250611-sgx-dt-v1-2-7a11f3885c60@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250611_130009_560289_3AFFB476 X-CRM114-Status: GOOD ( 14.20 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Jun 11, 2025 at 07:32:17PM +0200, Sasha Finkelstein via B4 Relay wrote: > From: Sasha Finkelstein > > Add device tree entries for GPUs in M-series SoCs > > Signed-off-by: Sasha Finkelstein > --- > 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(+) ... > 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