From: sashiko-bot@kernel.org
To: "Dillon Amburgey" <dillona@gmail.com>
Cc: dri-devel@lists.freedesktop.org,
"Eugenio Perez" <eperezma@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
virtualization@lists.linux.dev
Subject: Re: [PATCH v3 2/5] drm/qxl: wait for pending commits before applying DirtyFB
Date: Sat, 26 Sep 2026 16:39:41 +0000 [thread overview]
Message-ID: <20260926163941.76FAE1F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260926163123.39217-3-dillona@gmail.com>
> The modeset locks protect software state, but a nonblocking commit can
> swap that state before its hardware updates finish. DirtyFB can then
> race primary-surface replacement and draw into the preceding surface.
>
> Wait for the current CRTC commits while holding the modeset locks before
> checking the primary and issuing dirty updates. Return wait and lock
> errors to the caller instead of reporting success.
>
> Fixes: 9973c879cff7 ("drm: qxl: Atomic phase 3: Wire up atomic page_flip helper")
> Assisted-by: LLM sparse
> Signed-off-by: Dillon Amburgey <dillona@gmail.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260926163123.39217-1-dillona@gmail.com?part=2
next prev parent reply other threads:[~2026-09-26 16:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-26 16:31 [PATCH v3 0/5] drm/qxl: fix shared-primary lifetime and source packing Dillon Amburgey
2026-09-26 16:31 ` [PATCH v3 1/5] drm/qxl: unpin the framebuffer when plane preparation fails Dillon Amburgey
2026-09-26 16:38 ` sashiko-bot
2026-09-26 16:31 ` [PATCH v3 2/5] drm/qxl: wait for pending commits before applying DirtyFB Dillon Amburgey
2026-09-26 16:39 ` sashiko-bot [this message]
2026-09-26 16:31 ` [PATCH v3 3/5] drm/qxl: clear the monitor configuration for disabled head zero Dillon Amburgey
2026-09-26 16:39 ` sashiko-bot
2026-09-26 16:31 ` [PATCH v3 4/5] drm/qxl: own packed primary shadows in atomic plane state Dillon Amburgey
2026-09-26 16:41 ` sashiko-bot
2026-09-26 16:31 ` [PATCH v3 5/5] drm/qxl: pack dumb heads from their plane source rectangles Dillon Amburgey
2026-09-26 16:45 ` sashiko-bot
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