Re: [PATCH 3/4] arm64: dts: qcom: sdm630: describe adsp_mem region properly

[Nickolay Goppen]

15.04.2026 12:52, Konrad Dybcio wrote:
> On 4/15/26 11:40 AM, Nickolay Goppen wrote:
> > Downstream [1] this region is marked as shared and reusable so
> > describe it that way.
> >
> > [1]: https://github.com/xiaomi-sdm660/android_kernel_xiaomi_sdm660/blob/11-EAS/arch/arm/boot/dts/qcom/sdm660.dtsi#L448
> >
> > Signed-off-by: Nickolay Goppen <setotau@xxxxxxxxxxxxxx>
> > ---
> +Ekansh some insight, please?
>
> We're giving away that memory via qcom_scm_assign_mem() anyway
> and I would assume that making it not-"no-map" could introduce issues
> when the OS tries to access that region

I've made it as sdm845 done [1].

[1]: 
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/arch/arm64/boot/dts/qcom/sdm845.dtsi#n893

> Konrad
>
>
> >   arch/arm64/boot/dts/qcom/sdm630.dtsi | 3 ++-
> >   1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sdm630.dtsi b/arch/arm64/boot/dts/qcom/sdm630.dtsi
> > index 4b47efdb57b2..13094b5e9339 100644
> > --- a/arch/arm64/boot/dts/qcom/sdm630.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sdm630.dtsi
> > @@ -495,8 +495,9 @@ venus_region: venus@9f800000 {
> >   		};
> >   
> >   		adsp_mem: adsp-region@f6000000 {
> > +			compatible = "shared-dma-pool";
> >   			reg = <0x0 0xf6000000 0x0 0x800000>;
> > -			no-map;
> > +			reusable;
> >   		};
> >   
> >   		qseecom_mem: qseecom-region@f6800000 {
--
Best regards,
Nickolay