linux-kernel - [PATCH] arm64: dts: qcom: qcs6490-rb3gen2: Specify zap region for gpu

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Date: Tue, 2 Apr 2024 20:33:30 -0700
From: Bjorn Andersson <quic_bjorande@...cinc.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio
	<konrad.dybcio@...aro.org>,
        Rob Herring <robh@...nel.org>,
        "Krzysztof
 Kozlowski" <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        "Caleb
 Connolly" <caleb.connolly@...aro.org>,
        Komal Bajaj <quic_kbajaj@...cinc.com>,
        Naina Mehta <quic_nainmeht@...cinc.com>
CC: <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Bjorn Andersson <quic_bjorande@...cinc.com>
Subject: [PATCH] arm64: dts: qcom: qcs6490-rb3gen2: Specify zap region for
 gpu

Without the zap region defined the enabled GPU will, if able to find the
other firmware files, attempt to initialize itself without the zap
firmware loading, which causes the rb3gen2 to freeze or crash.

Add the zap-shader node and define the memory-region and firmware path
to avoid this problem.

Fixes: 04cf333afc75 ("arm64: dts: qcom: Add base qcs6490-rb3gen2 board dts")
Signed-off-by: Bjorn Andersson <quic_bjorande@...cinc.com>
---
 arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
index 63ebe0774f1d..5b81b5e0b4ce 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
@@ -471,6 +471,13 @@ &gcc {
 			   <GCC_WPSS_RSCP_CLK>;
 };
 
+&gpu {
+	zap-shader {
+		memory-region = <&gpu_microcode_mem>;
+		firmware-name = "qcom/qcs6490/a660_zap.mbn";
+	};
+};
+
 &qupv3_id_0 {
 	status = "okay";
 };

---
base-commit: 727900b675b749c40ba1f6669c7ae5eb7eb8e837
change-id: 20240326-rb3gen2-gpu-4343c5dc7e40

Best regards,
-- 
Bjorn Andersson <quic_bjorande@...cinc.com>