linux-kernel - [PATCH v2 1/4] arm64: dts: qcom: sc7280: Add ZAP shader support

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Message-Id: <20230926-topic-a643-v2-1-06fa3d899c0a@linaro.org>
Date:   Mon, 20 Nov 2023 13:12:52 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        cros-qcom-dts-watchers@...omium.org,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Akhil P Oommen <quic_akhilpo@...cinc.com>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        Luca Weiss <luca.weiss@...rphone.com>,
        Rob Clark <robdclark@...omium.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH v2 1/4] arm64: dts: qcom: sc7280: Add ZAP shader support

Non-Chrome SC7280-family platforms ship a ZAP shader with the Adreno GPU.
Describe that and make sure it doesn't interfere with Chrome devices.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi | 2 ++
 arch/arm64/boot/dts/qcom/sc7280.dtsi               | 9 +++++++++
 2 files changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi b/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi
index 5d462ae14ba1..88fc67c3646e 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi
@@ -17,6 +17,8 @@
  * required by the setup for Chrome boards.
  */
 
+/delete-node/ &gpu_zap_mem;
+/delete-node/ &gpu_zap_shader;
 /delete-node/ &hyp_mem;
 /delete-node/ &xbl_mem;
 /delete-node/ &reserved_xbl_uefi_log;
diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 04bf85b0399a..58563f8fdc16 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -152,6 +152,11 @@ ipa_fw_mem: memory@...00000 {
 			no-map;
 		};
 
+		gpu_zap_mem: zap@...1a000 {
+			reg = <0 0x8b71a000 0 0x2000>;
+			no-map;
+		};
+
 		rmtfs_mem: memory@...00000 {
 			compatible = "qcom,rmtfs-mem";
 			reg = <0x0 0x9c900000 0x0 0x280000>;
@@ -2613,6 +2618,10 @@ gpu: gpu@...0000 {
 			nvmem-cells = <&gpu_speed_bin>;
 			nvmem-cell-names = "speed_bin";
 
+			gpu_zap_shader: zap-shader {
+				memory-region = <&gpu_zap_mem>;
+			};
+
 			gpu_opp_table: opp-table {
 				compatible = "operating-points-v2";
 

-- 
2.42.1