Hi all,
The patch set aims to add a new property dynamic-power-coefficient to Mali GPU DT bindings. This property is known from CPUs and they are both aligned. It is used for Energy Model registration.
Regards, Lukasz Luba
Lukasz Luba (2): dt-bindings: mali-midgard: Add dynamic-power-coefficient dt-bindings: mali-bifrost: Add dynamic-power-coefficient
.../bindings/gpu/arm,mali-bifrost.yaml | 17 +++++++++++++++++ .../bindings/gpu/arm,mali-midgard.yaml | 17 +++++++++++++++++ 2 files changed, 34 insertions(+)
Add a property dynamic-power-coefficient which allows to register Energy Model for the Mali Midgard devices.
Signed-off-by: Lukasz Luba lukasz.luba@arm.com --- .../bindings/gpu/arm,mali-midgard.yaml | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml index e9c42b59f30f..696c17aedbbe 100644 --- a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml +++ b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml @@ -90,6 +90,23 @@ properties:
dma-coherent: true
+ dynamic-power-coefficient: + $ref: '/schemas/types.yaml#/definitions/uint32' + description: + A u32 value that represents the running time dynamic + power coefficient in units of uW/MHz/V^2. The + coefficient can either be calculated from power + measurements or derived by analysis. + + The dynamic power consumption of the GPU is + proportional to the square of the Voltage (V) and + the clock frequency (f). The coefficient is used to + calculate the dynamic power as below - + + Pdyn = dynamic-power-coefficient * V^2 * f + + where voltage is in V, frequency is in MHz. + required: - compatible - reg
On Wed, 09 Dec 2020 11:51:42 +0000, Lukasz Luba wrote:
Add a property dynamic-power-coefficient which allows to register Energy Model for the Mali Midgard devices.
Signed-off-by: Lukasz Luba lukasz.luba@arm.com
.../bindings/gpu/arm,mali-midgard.yaml | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
Applied, thanks!
Add a property dynamic-power-coefficient which allows to register Energy Model for the Mali Bifrost devices.
Signed-off-by: Lukasz Luba lukasz.luba@arm.com --- .../bindings/gpu/arm,mali-bifrost.yaml | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml index b1844b9c295d..184492162e7e 100644 --- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml +++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml @@ -52,6 +52,23 @@ properties: "#cooling-cells": const: 2
+ dynamic-power-coefficient: + $ref: '/schemas/types.yaml#/definitions/uint32' + description: + A u32 value that represents the running time dynamic + power coefficient in units of uW/MHz/V^2. The + coefficient can either be calculated from power + measurements or derived by analysis. + + The dynamic power consumption of the GPU is + proportional to the square of the Voltage (V) and + the clock frequency (f). The coefficient is used to + calculate the dynamic power as below - + + Pdyn = dynamic-power-coefficient * V^2 * f + + where voltage is in V, frequency is in MHz. + required: - compatible - reg
On Wed, 09 Dec 2020 11:51:43 +0000, Lukasz Luba wrote:
Add a property dynamic-power-coefficient which allows to register Energy Model for the Mali Bifrost devices.
Signed-off-by: Lukasz Luba lukasz.luba@arm.com
.../bindings/gpu/arm,mali-bifrost.yaml | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
Applied, thanks!
dri-devel@lists.freedesktop.org
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Lukasz Luba -
Rob Herring