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From: Jordan Crouse <jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
To: freedreno-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Bjorn Andersson
	<bjorn.andersson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	David Brown <david.brown-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Andy Gross <andy.gross-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Subject: [PATCH v1 4/4] arm64: dts: sdm845: Add zap shader region for GPU
Date: Tue, 12 Mar 2019 12:13:42 -0600	[thread overview]
Message-ID: <1552414422-9568-5-git-send-email-jcrouse@codeaurora.org> (raw)
In-Reply-To: <1552414422-9568-1-git-send-email-jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>

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";
 
-- 
2.7.4

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  parent reply	other threads:[~2019-03-12 18:13 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-12 18:13 [PATCH v1 0/4] drm/msm/a6xx: Add support for zap shader Jordan Crouse
     [not found] ` <1552414422-9568-1-git-send-email-jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2019-03-12 18:13   ` [PATCH v1 3/4] dt-bindings: drm/msm/gpu: Document a5xx / a6xx zap shader region Jordan Crouse
2019-03-28 13:32     ` Rob Herring
2019-04-01 16:13       ` Jordan Crouse
2019-03-12 18:13   ` Jordan Crouse [this message]
2019-03-13 15:42     ` [Freedreno] [PATCH v1 4/4] arm64: dts: sdm845: Add zap shader region for GPU Rob Clark
     [not found]       ` <CAF6AEGt74Hs+VMgMOMAyFw9FGk5mrY2NU07JUh=OKSOhj-h6CA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2019-03-14  5:20         ` Bjorn Andersson
2019-03-14 16:59           ` Rob Clark

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