Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1616749 > unrolled thread
| Started by | Quentin Schulz <quentin.schulz@free-electrons.com> |
|---|---|
| First post | 2017-04-05 11:20 +0200 |
| Last post | 2017-04-05 14:50 +0200 |
| Articles | 2 — 2 participants |
Back to article view | Back to linux.kernel
This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by
below is the oldest one visible, not the original post.
[PATCH v4 7/8] ARM: sun8i: a33: Add devfreq-based GPU cooling Quentin Schulz <quentin.schulz@free-electrons.com> - 2017-04-05 11:20 +0200
Re: [PATCH v4 7/8] ARM: sun8i: a33: Add devfreq-based GPU cooling Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-04-05 14:50 +0200
| From | Quentin Schulz <quentin.schulz@free-electrons.com> |
|---|---|
| Date | 2017-04-05 11:20 +0200 |
| Subject | [PATCH v4 7/8] ARM: sun8i: a33: Add devfreq-based GPU cooling |
| Message-ID | <tsPgB-IY-5@gated-at.bofh.it> |
From: Maxime Ripard <maxime.ripard@free-electrons.com>
This adds GPU thermal throttling for the Allwinner A33.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
---
v3:
- got rid of cooling-min-level and cooling-max-level as it's not used in any
code in the kernel,
added in v2
arch/arm/boot/dts/sun8i-a23-a33.dtsi | 1 +
arch/arm/boot/dts/sun8i-a33.dtsi | 24 ++++++++++++++++++++++++
2 files changed, 25 insertions(+)
diff --git a/arch/arm/boot/dts/sun8i-a23-a33.dtsi b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
index 5e8725d..6d81a6d 100644
--- a/arch/arm/boot/dts/sun8i-a23-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
@@ -495,6 +495,7 @@
assigned-clocks = <&ccu CLK_GPU>;
assigned-clock-rates = <384000000>;
+ #cooling-cells = <2>;
};
gic: interrupt-controller@01c81000 {
diff --git a/arch/arm/boot/dts/sun8i-a33.dtsi b/arch/arm/boot/dts/sun8i-a33.dtsi
index b88c107..541ca45 100644
--- a/arch/arm/boot/dts/sun8i-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a33.dtsi
@@ -188,6 +188,16 @@
trip = <&cpu_alert1>;
cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
+
+ map2 {
+ trip = <&gpu_alert0>;
+ cooling-device = <&mali 1 THERMAL_NO_LIMIT>;
+ };
+
+ map3 {
+ trip = <&gpu_alert1>;
+ cooling-device = <&mali 2 THERMAL_NO_LIMIT>;
+ };
};
trips {
@@ -198,6 +208,13 @@
type = "passive";
};
+ gpu_alert0: gpu_alert0 {
+ /* milliCelsius */
+ temperature = <85000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
cpu_alert1: cpu_alert1 {
/* milliCelsius */
temperature = <90000>;
@@ -205,6 +222,13 @@
type = "hot";
};
+ gpu_alert1: gpu_alert1 {
+ /* milliCelsius */
+ temperature = <95000>;
+ hysteresis = <2000>;
+ type = "hot";
+ };
+
cpu_crit: cpu_crit {
/* milliCelsius */
temperature = <110000>;
--
2.9.3
[toc] | [next] | [standalone]
| From | Maxime Ripard <maxime.ripard@free-electrons.com> |
|---|---|
| Date | 2017-04-05 14:50 +0200 |
| Message-ID | <tsSxP-2F7-7@gated-at.bofh.it> |
| In reply to | #1616749 |
[Multipart message — attachments visible in raw view] — view raw
On Wed, Apr 05, 2017 at 11:06:33AM +0200, Quentin Schulz wrote: > From: Maxime Ripard <maxime.ripard@free-electrons.com> > > This adds GPU thermal throttling for the Allwinner A33. > > Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> > Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com> Applied, thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
[toc] | [prev] | [standalone]
Back to top | Article view | linux.kernel
csiph-web