linux-kernel - Re: [PATCH v4 01/16] drm/msm/dpu: check every pipe per capability

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Message-ID: <CABymUCPc5z+9SLeKy04Rg79B9sZUPUf9osJ6UJMKiv2cTXynxA@mail.gmail.com>
Date: Thu, 16 Jan 2025 22:38:33 +0800
From: Jun Nie <jun.nie@...aro.org>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: Rob Clark <robdclark@...il.com>, Abhinav Kumar <quic_abhinavk@...cinc.com>, 
	Sean Paul <sean@...rly.run>, Marijn Suijten <marijn.suijten@...ainline.org>, 
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, linux-arm-msm@...r.kernel.org, 
	dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 01/16] drm/msm/dpu: check every pipe per capability

Dmitry Baryshkov <dmitry.baryshkov@...aro.org> 于2025年1月16日周四 15:44写道：

>
> On Thu, Jan 16, 2025 at 03:25:50PM +0800, Jun Nie wrote:
> > Move requreiment check to routine of every pipe check. As sblk
> > and pipe_hw_caps of r_pipe are not checked in current implementation.
>
How about this version?
    The capability stored in sblk and pipe_hw_caps is checked only for
    SSPP of the first pipe in the pair with current implementation. That
    of the 2nd pipe, r_pipe, is not checked and may violate hardware
    capability. Move requirement check to dpu_plane_atomic_check_pipe()
    for the check of every pipe.


Jun