linux-kernel - [PATCH] arm64: dts: allwinner: a64: Add GPU opp table

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Sun, 12 Sep 2021 11:50:32 +0200
From:   Jernej Skrabec <jernej.skrabec@...il.com>
To:     mripard@...nel.org, wens@...e.org
Cc:     robh+dt@...nel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org,
        Jernej Skrabec <jernej.skrabec@...il.com>
Subject: [PATCH] arm64: dts: allwinner: a64: Add GPU opp table

GPU on A64 currently runs at default frequency, which is 297 MHz. This
is a bit low in some cases and noticeable lag can be observed in GPU
rendered UIs. GPU is capable to run at 432 MHz.

Add GPU OPP table.

Signed-off-by: Jernej Skrabec <jernej.skrabec@...il.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index 6ddb717f2f98..5ba379078500 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -102,6 +102,22 @@ de: display-engine {
 		status = "disabled";
 	};
 
+	gpu_opp_table: opp-table-gpu {
+		compatible = "operating-points-v2";
+
+		opp-120000000 {
+			opp-hz = /bits/ 64 <120000000>;
+		};
+
+		opp-312000000 {
+			opp-hz = /bits/ 64 <312000000>;
+		};
+
+		opp-432000000 {
+			opp-hz = /bits/ 64 <432000000>;
+		};
+	};
+
 	osc24M: osc24M_clk {
 		#clock-cells = <0>;
 		compatible = "fixed-clock";
@@ -1103,6 +1119,7 @@ mali: gpu@...0000 {
 			clocks = <&ccu CLK_BUS_GPU>, <&ccu CLK_GPU>;
 			clock-names = "bus", "core";
 			resets = <&ccu RST_BUS_GPU>;
+			operating-points-v2 = <&gpu_opp_table>;
 		};
 
 		gic: interrupt-controller@...1000 {
-- 
2.33.0