Re: [PATCH 0/4] Add support for atomic async page-flips

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On 08/24, Simon Ser wrote:
> This series adds support for DRM_MODE_PAGE_FLIP_ASYNC for atomic
> commits, aka. "immediate flip" (which might result in tearing).
> The feature was only available via the legacy uAPI, however for
> gaming use-cases it may be desirable to enable it via the atomic
> uAPI too.

Hi Simon,

I'm cc'ing André as he has been actively working on it lately and must
be quite familiar with the async flip machinery.

> 
> User-space patch:
> https://github.com/Plagman/gamescope/pull/595
> 
> IGT patch:
> https://patchwork.freedesktop.org/series/107681/

Also, André recently generalized the kms_async_flip to test drivers
other than i915, so I think he can provide some thoughts about the IGT
test too.

Thanks,

Melissa

> 
> Tested on an AMD Picasso iGPU.
> 
> Simon Ser (4):
>   drm: introduce drm_mode_config.atomic_async_page_flip_not_supported
>   drm: allow DRM_MODE_PAGE_FLIP_ASYNC for atomic commits
>   drm: introduce DRM_CAP_ATOMIC_ASYNC_PAGE_FLIP
>   amd/display: indicate support for atomic async page-flips on DCN
> 
>  drivers/gpu/drm/amd/amdgpu/dce_v10_0.c       |  1 +
>  drivers/gpu/drm/amd/amdgpu/dce_v11_0.c       |  1 +
>  drivers/gpu/drm/amd/amdgpu/dce_v6_0.c        |  1 +
>  drivers/gpu/drm/amd/amdgpu/dce_v8_0.c        |  1 +
>  drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c |  1 +
>  drivers/gpu/drm/drm_atomic_uapi.c            | 28 +++++++++++++++++---
>  drivers/gpu/drm/drm_ioctl.c                  |  5 ++++
>  drivers/gpu/drm/i915/display/intel_display.c |  1 +
>  drivers/gpu/drm/nouveau/nouveau_display.c    |  1 +
>  drivers/gpu/drm/radeon/radeon_display.c      |  1 +
>  drivers/gpu/drm/vc4/vc4_kms.c                |  1 +
>  include/drm/drm_mode_config.h                | 11 ++++++++
>  include/uapi/drm/drm.h                       | 10 ++++++-
>  13 files changed, 59 insertions(+), 4 deletions(-)
> 
> -- 
> 2.37.2
> 
> 

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