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

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Message-ID: <a8458790-b4d8-4165-bd6f-00497a9d0457@quicinc.com>
Date: Thu, 14 Aug 2025 16:54:16 +0800
From: Yongxing Mou <quic_yongmou@...cinc.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.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 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.
>>
>> 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(+)
>>
>