linux-kernel - Re: [PATCH v2 32/38] drm/msm: add support for non-blocking commits

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Message-ID: <vns2bbpekccowbu3ahg4cnvhrbfk3yc2tvu7o4n45gpn2tpybp@w6gmsve76erp>
Date: Thu, 14 Aug 2025 12:28:23 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Yongxing Mou <quic_yongmou@...cinc.com>
Cc: Rob Clark <robin.clark@....qualcomm.com>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Jessica Zhang <jessica.zhang@....qualcomm.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,
        Abhinav Kumar <quic_abhinavk@...cinc.com>
Subject: Re: [PATCH v2 32/38] drm/msm: add support for non-blocking commits

On Thu, Aug 14, 2025 at 04:54:16PM +0800, Yongxing Mou wrote:
> 
> 
> On 2025/6/9 22:50, Dmitry Baryshkov wrote:
> > On Mon, Jun 09, 2025 at 08:21:51PM +0800, Yongxing Mou wrote:
> > > From: Abhinav Kumar <quic_abhinavk@...cinc.com>
> > > 
> > > Hook up the mst framework APIs with atomic_commit_setup() and
> > > atomic_commit_tail() APIs to handle non-blocking commits.
> > 
> > Were non-blocking commits not supported before this patch?
> > 
> This patch only work for MST case. and for SST case, i'm not sure.  I see
> commit_tail() called drm_atomic_helper_wait_for_dependencies() in DRM
> codes.. Hopefully this can answer your question.

This should be a part of the commit message.

> > > 
> > > Signed-off-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
> > > ---
> > >   drivers/gpu/drm/msm/msm_atomic.c | 3 +++
> > >   drivers/gpu/drm/msm/msm_kms.c    | 2 ++
> > >   2 files changed, 5 insertions(+)
> > > 
> > 
> 

-- 
With best wishes
Dmitry