Request for Information on the current drm radeon Atomic Mode Settings

[Mauro Rossi]

Cc: correct email address of Lee Jones, just For Your Information

Updated [2] link URL because HWC3 in Celadon was moved to project Celadon
drm-hwcomposer local branch on yesterday

The request for information on drm radeon atomic modesettings is confirmed

Mauro

On Fri, May 17, 2024 at 8:31 AM Mauro Rossi <issor.oruam at gmail.com> wrote:

> Hi all,
>
> with Android 14 QPR2 there were substantial changes in graphic stack's
> Android HAL (Hardware Abstraction Layer),
> essentially it became mandatory that hwcomposer HAL module supports AIDL
> Android Interface Definition Language,
>
> at the moment drm_hwcomposer does not support AIDL [1]
>
> Project Celadon has an HWC3 AIDL implemented [2], as a patch on top of
> hardware/interface AOSP project, there is an opportunity to use it also for
> non Intel GPUs.
>
> drm amdpu in kernel already supports ADF Atomic Display Framework, I would
> like to ask the current status of Atomic Display Framework in drm radeon,
> because Atomic Mode Settings seems partially implemented since 2010-2012,
> but ADF capabilities are not exposed to user space.
>
> Please, I also need some basic (high level) information about the
> outstanding changes that would be required to support it, in order to be
> able to use HWC3 -> drm_hwcomposer with r600, r300 chipsets.
>
> Thanks for your informations
>
> Mauro
> android-x86 team/Bliss-OS community
>
> [1]
> https://gitlab.freedesktop.org/drm-hwcomposer/drm-hwcomposer/-/issues/80
> [2]
> https://github.com/projectceladon/vendor-intel-utils/blob/master/aosp_diff/preliminary/hardware/interfaces/11_0001-Enable-graphics.composer3-AIDL-HAL-service.patch
>

[2]
https://github.com/projectceladon/drm-hwcomposer/commit/1160cdfb53daebf59f3704ec9586c66385e63747
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