[PATCH v1 4/4] arm64: dts: sdm845: Add zap shader region for GPU

Jordan Crouse
2019-03-12T18:13:42Z

Some Adreno GPU targets require a special zap shader to bring the GPU
out of secure mode. Define a region to allocate and store the zap
shader.

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

arch/arm64/boot/dts/qcom/sdm845.dtsi | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index fed7a29..526456d 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -100,6 +100,11 @@
no-map;
};

+ zap_shader_region: memory@8c415000 {
+ reg = <0 0x8c415000 0 0x2000>;
+ no-map;
+ };
+
mpss_region: memory@8e000000 {
reg = <0 0x8e000000 0 0x7800000>;
no-map;
@@ -109,6 +114,8 @@
reg = <0 0x96500000 0 0x200000>;
no-map;
};
+
+
};

cpus {
@@ -1514,6 +1521,10 @@

qcom,gmu = <&gmu>;

+ zap-shader {
+ memory-region = <&zap_shader_region>;
+ };
+
gpu_opp_table: opp-table {
compatible = "operating-points-v2";