linux-kernel - [PATCH v1 3/4] arm64: dts: sdm845: Set the virtual address range for GMU allocations

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Date:   Wed, 19 Feb 2020 14:32:57 -0700
From:   Jordan Crouse <jcrouse@...eaurora.org>
To:     linux-arm-msm@...r.kernel.org
Cc:     John Stultz <john.stultz@...aro.org>, devicetree@...r.kernel.org,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        linux-kernel@...r.kernel.org, Andy Gross <agross@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Subject: [PATCH v1 3/4] arm64: dts: sdm845: Set the virtual address range for GMU allocations

GMU DMA allocations need to be mapped between 0x60000000 and 0x80000000 in
the GMU virtual address space. Specify the dma-range so the iova allocator
does the right thing.

Signed-off-by: Jordan Crouse <jcrouse@...eaurora.org>
---

 arch/arm64/boot/dts/qcom/sdm845.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index d42302b..3c766423 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -2911,6 +2911,8 @@
 					<&gpucc GPU_GX_GDSC>;
 			power-domain-names = "cx", "gx";
 
+			dma-ranges = <0 0x60000000 0 0x60000000 0 0x20000000>;
+
 			iommus = <&adreno_smmu 5>;
 
 			operating-points-v2 = <&gmu_opp_table>;
-- 
2.7.4