From: Trevor Woerner <twoerner@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>,
Heiko Stuebner <heiko@sntech.de>,
Johan Jonker <jbx6244@gmail.com>, Chen-Yu Tsai <wens@csie.org>,
David Wu <david.wu@rock-chips.com>,
Ezequiel Garcia <ezequiel@collabora.com>,
Cameron Nemo <cnemo@tutanota.com>,
Robin Murphy <robin.murphy@arm.com>,
Elaine Zhang <zhangqing@rock-chips.com>,
devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
FLATTENED DEVICE TREE BINDINGS),
linux-arm-kernel@lists.infradead.org (moderated
list:ARM/Rockchip SoC support),
linux-rockchip@lists.infradead.org (open list:ARM/Rockchip SoC
support)
Subject: [PATCH 1/2] arm64: dts: rk3328: add gpu opp table
Date: Sat, 16 Oct 2021 11:45:44 -0400 [thread overview]
Message-ID: <20211016154548.29555-1-twoerner@gmail.com> (raw)
Add an operating-points table and cooling entry to the GPU on the
RK3328 SoC to improve its performance. According to its datasheet[1]
the maximum frequency of the Mali-450 MP2 GPU found on the RK3328 SoC
is 500MHz.
On my rock64 device, under x11, glmark2-es2 performance increased from
around 60 to just over 100. Same device running glmark2-es2 under
wayland/weston improved from just over 100 to just over 200.
[1] https://rockchip.fr/RK3328%20datasheet%20V1.2.pdf
Signed-off-by: Trevor Woerner <twoerner@gmail.com>
---
arch/arm64/boot/dts/rockchip/rk3328.dtsi | 26 +++++++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index 8c821acb21ff..5e1dcf71e414 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -532,7 +532,8 @@ map0 {
cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
contribution = <4096>;
};
};
@@ -617,6 +618,29 @@ gpu: gpu@ff300000 {
clocks = <&cru ACLK_GPU>, <&cru ACLK_GPU>;
clock-names = "bus", "core";
resets = <&cru SRST_GPU_A>;
+ operating-points-v2 = <&gpu_opp_table>;
+ #cooling-cells = <2>;
+ };
+
+ gpu_opp_table: gpu-opp-table {
+ compatible = "operating-points-v2";
+
+ opp-200000000 {
+ opp-hz = /bits/ 64 <200000000>;
+ opp-microvolt = <1100000>;
+ };
+ opp-300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ opp-microvolt = <1100000>;
+ };
+ opp-400000000 {
+ opp-hz = /bits/ 64 <400000000>;
+ opp-microvolt = <1100000>;
+ };
+ opp-500000000 {
+ opp-hz = /bits/ 64 <500000000>;
+ opp-microvolt = <1100000>;
+ };
};
h265e_mmu: iommu@ff330200 {
--
2.30.0.rc0
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next reply other threads:[~2021-10-16 15:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-16 15:45 Trevor Woerner [this message]
2021-10-16 15:45 ` [PATCH 2/2] arm64: dts: rock64: add gpu regulator Trevor Woerner
2021-10-16 20:45 ` [PATCH 1/2] arm64: dts: rk3328: add gpu opp table Johan Jonker
2021-10-17 15:29 ` Trevor Woerner
2021-10-18 18:09 ` Robin Murphy
2021-10-18 16:49 ` Nicolas Frattaroli
2021-10-19 15:52 ` Alex Bee
2021-10-19 16:19 ` Nicolas Frattaroli
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