linux-kernel - [PATCH 0/1] drm/lima: implement the file flush callback

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Message-ID: <20250408154637.1637082-1-nunes.erico@gmail.com>
Date: Tue,  8 Apr 2025 17:46:36 +0200
From: Erico Nunes <nunes.erico@...il.com>
To: Qiang Yu <yuq825@...il.com>
Cc: christian.koenig@....com,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	dri-devel@...ts.freedesktop.org,
	lima@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	Erico Nunes <nunes.erico@...il.com>
Subject: [PATCH 0/1] drm/lima: implement the file flush callback

This prevents a user bug in lima reported in [1].
I'm not sure this is the entire bug fix, but Christian had also
suggested we implement this callback in a previous review [2].
I took the amdgpu implementation as a base for this.

I noticed that most other drivers don't implement this though, in
particular the other ones for embedded GPUs. Should they, or does
this indicate that we have a different bug to be fixed in lima?

[1] https://gitlab.freedesktop.org/mesa/mesa/-/issues/12007
[2] https://lore.kernel.org/all/20230606143247.433018-1-nunes.erico@gmail.com/T/#mf5c7a2492201c8ec82bee47eb5615714d5c5aac2

Erico Nunes (1):
  drm/lima: implement the file flush callback

 drivers/gpu/drm/lima/lima_ctx.c | 18 ++++++++++++++++++
 drivers/gpu/drm/lima/lima_ctx.h |  1 +
 drivers/gpu/drm/lima/lima_drv.c | 17 ++++++++++++++++-
 3 files changed, 35 insertions(+), 1 deletion(-)

-- 
2.49.0