Re: [PATCH 0/9] drm/msm/mdp5: Cursor plane stuff

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On Mon, Dec 19, 2016 at 05:38:49PM +0530, Archit Taneja wrote:
> This series does some mdp5_plane related clean ups (use plane helpers
> for clipping etc), adds MDP5 bits needed for cursor plane blocks, and
> then add cursor planes.
> 
> On older MDP5 versions, we had cursor HW in Layer Mixer blocks, and
> that's implemented in mdp5_crtc.c. With newer hardware, the cursor
> blocks look exactly like MDP5 pipes (SSPPs).
> 
> The "faster than vblank cursor position update stuff" has been
> copied from vc4 and the patches posted recently by Maarten for Intel:
> 
> https://patchwork.kernel.org/patch/9466417/
> 
> I've tried this with some X11 UI and modetest -C, and it seems to
> work okay. Are there any tests that mix up atomic commits and legacy
> cursor updates a lot to identify issues?

kms_legacy_cursor mixes cursor updates with page_flips (and if you use
atomic for those, atomic flips ofcourse). But the test is a bit too
oveager and even expects cursor updates vs. modesets to not block. Not
sure Maarten fixed that already.
-Daniel

> 
> Archit Taneja (9):
>   drm/msm/mdp5: cfg: Add pipe_cursor block
>   drm/msm/mdp5: Update generated headers
>   drm/msm/mdp5: Prepare CRTC/LM for empty stages
>   drm/msm/mdp5: Use plane helpers to configure src/dst rectangles
>   drm/msm/mdp5: Configure COLOR3_OUT propagation
>   drm/msm/mdp5: Misc cursor plane bits
>   drm/msm/mdp5: Refactor mdp5_plane_atomic_check
>   HACK: drm/msm/mdp5: Add support for legacy cursor updates
>   drm/msm/mdp5: Add cursor planes
> 
>  drivers/gpu/drm/msm/mdp/mdp5/mdp5.xml.h   |  30 +++--
>  drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c   |  10 ++
>  drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.h   |   1 +
>  drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c  |  73 +++++++++++-
>  drivers/gpu/drm/msm/mdp/mdp5/mdp5_ctl.c   |  14 ++-
>  drivers/gpu/drm/msm/mdp/mdp5/mdp5_ctl.h   |   4 +-
>  drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c   |  38 +++++--
>  drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h   |   8 +-
>  drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c  |   8 ++
>  drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c | 181 ++++++++++++++++++++++++++----
>  drivers/gpu/drm/msm/mdp/mdp_kms.h         |   1 +
>  drivers/gpu/drm/msm/msm_atomic.c          |  26 +++--
>  12 files changed, 334 insertions(+), 60 deletions(-)
> 
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> hosted by The Linux Foundation
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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