Re: [PATCH] arm64: dts: qcom: sm8650: Add ACD levels for GPU

[Neil Armstrong]

On 30/07/2025 12:00, Konrad Dybcio wrote:
> On 7/29/25 4:40 PM, Neil Armstrong wrote:
> > Update GPU node to include acd level values.
> >
> > Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
> > ---
> >   arch/arm64/boot/dts/qcom/sm8650.dtsi | 14 +++++++++++++-
> >   1 file changed, 13 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qcom/sm8650.dtsi
> > index 495ea9bfd008500dd2c9f46ceca94cf5f972beca..4cd933219ce008bd1c603c87778e210b6332e29c 100644
> > --- a/arch/arm64/boot/dts/qcom/sm8650.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sm8650.dtsi
> > @@ -4127,72 +4127,84 @@ zap-shader {
> >   
> >   			/* Speedbin needs more work on A740+, keep only lower freqs */
> >   			gpu_opp_table: opp-table {
> > -				compatible = "operating-points-v2";
> > +				compatible = "operating-points-v2-adreno",
> > +					     "operating-points-v2";
> >   
> >   				opp-231000000 {
> >   					opp-hz = /bits/ 64 <231000000>;
> >   					opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS_D2>;
> >   					opp-peak-kBps = <2136718>;
> > +					qcom,opp-acd-level = <0xc82f5ffd>;
> >   				};
> >   
> >   				opp-310000000 {
> >   					opp-hz = /bits/ 64 <310000000>;
> >   					opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS_D1>;
> >   					opp-peak-kBps = <2136718>;
> > +					qcom,opp-acd-level = <0xc82c5ffd>;
> >   				};
>
> https://git.codelinaro.org/clo/la/platform/vendor/qcom/opensource/graphics-devicetree/-/blob/gfx-devicetree-oss.lnx.1.0.r1-rel/gpu/pineapple-v2-gpu-pwrlevels.dtsi?ref_type=heads
>
> doesn't set ACD for D1/D2
>
> >   
> >   				opp-366000000 {
> >   					opp-hz = /bits/ 64 <366000000>;
> >   					opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS_D0>;
> >   					opp-peak-kBps = <6074218>;
> > +					qcom,opp-acd-level = <0xc02e5ffd>;
>
> And other values differ too
>
> What release did you grab these from?

A much more recent non-public release with different gpu-pwrlevels for different SKU codes,
all sets ACDs for D1/D2, and the ACD values are:

#define ACD_LEVEL_TURBO_L1    0x882a5ffd
#define ACD_LEVEL_TURBO       0x882a5ffd
#define ACD_LEVEL_NOM_L1      0x882a5ffd
#define ACD_LEVEL_NOM         0x882a5ffd
#define ACD_LEVEL_SVS_L2      0x882a5ffd
#define ACD_LEVEL_SVS_L1      0x882a5ffd
#define ACD_LEVEL_SVS_L0      0x882a5ffd
#define ACD_LEVEL_SVS         0x882c5ffd
#define ACD_LEVEL_LOW_SVS_L1  0xc02a5ffd
#define ACD_LEVEL_LOW_SVS     0xc02d5ffd
#define ACD_LEVEL_LOW_SVS_D0  0xc02e5ffd
#define ACD_LEVEL_LOW_SVS_D1  0xc82c5ffd
#define ACD_LEVEL_LOW_SVS_D2  0xc82f5ffd

Neil

> Konrad