linux-kernel - Re: [PATCH v5 03/14] drm/msm/dpu: switch RM to use crtc_id rather than enc

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Message-ID: <jr7zbj5w7iq4apg3gofuvcwf4r2swzqjk7sshwcdjll4mn6ctt@l2n3qfpujg3q>
Date: Thu, 30 Jan 2025 03:43:24 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Jessica Zhang <quic_jesszhan@...cinc.com>
Cc: Rob Clark <robdclark@...il.com>, quic_abhinavk@...cinc.com, 
	Sean Paul <sean@...rly.run>, Marijn Suijten <marijn.suijten@...ainline.org>, 
	David Airlie <airlied@...il.com>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
	Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
	Simona Vetter <simona@...ll.ch>, Simona Vetter <simona.vetter@...ll.ch>, 
	quic_ebharadw@...cinc.com, linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
	freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org, Rob Clark <robdclark@...omium.org>, 
	Ville Syrjälä <ville.syrjala@...ux.intel.com>
Subject: Re: [PATCH v5 03/14] drm/msm/dpu: switch RM to use crtc_id rather
 than enc_id for allocation

On Tue, Jan 28, 2025 at 07:20:35PM -0800, Jessica Zhang wrote:
> From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> 
> Up to now the driver has been using encoder to allocate hardware
> resources. Switch it to use CRTC id in preparation for the next step.
> 
> Reviewed-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Signed-off-by: Jessica Zhang <quic_jesszhan@...cinc.com>
> ---
> Changes in v5:
> - Reordered to prevent breaking CI and upon partial application
> 
> Changes in v4 (due to rebase):
> - moved *_get_assigned_resources() changes for DSPP and LM from
>   encoder *_virt_atomic_mode_set() to *_assign_crtc_resources()
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c    |  20 ++-
>  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c |  10 +-
>  drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h     |  12 +-
>  drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c      | 189 ++++++++++++++--------------
>  drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h      |   7 +-
>  5 files changed, 113 insertions(+), 125 deletions(-)

This patch seems to make kms_color@...-max and
kms_writeback@...teback-check-output fail on sc7180-trogdor-kingoftown
(limozeen didn't start job execution for this commit at this moment).

- https://gitlab.freedesktop.org/drm/msm/-/jobs/70213449
- https://gitlab.freedesktop.org/drm/msm/-/jobs/70213446

I've restarted the jobs, but it would be nice to understand the cause.

-- 
With best wishes
Dmitry