linux-kernel - Re: [PATCH v7] drm/virtio: Add drm

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Message-ID: <d8a453e9-c8ce-4a7d-8fb9-08a13c44d7f3@collabora.com>
Date: Sun, 9 Feb 2025 20:45:40 +0300
From: Dmitry Osipenko <dmitry.osipenko@...labora.com>
To: Ryosuke Yasuoka <ryasuoka@...hat.com>, airlied@...hat.com,
 kraxel@...hat.com, gurchetansingh@...omium.org, olvaffe@...il.com,
 maarten.lankhorst@...ux.intel.com, mripard@...nel.org, tzimmermann@...e.de,
 daniel@...ll.ch, jfalempe@...hat.com
Cc: virtualization@...ts.linux.dev, linux-kernel@...r.kernel.org,
 dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v7] drm/virtio: Add drm_panic support

On 2/6/25 13:42, Ryosuke Yasuoka wrote:
> Virtio gpu supports the drm_panic module, which displays a message to
> the screen when a kernel panic occurs. It is supported where it has
> vmapped shmem BO.
> 
> Signed-off-by: Jocelyn Falempe <jfalempe@...hat.com>
> Signed-off-by: Ryosuke Yasuoka <ryasuoka@...hat.com>
> ---

Applied to misc-next, thanks!

I've tested v7 with a different capsets, works well. For a non-VT FB the
vmap indeed will be needed. Looking forward to the atomic vmap support.
The rough idea of the atomic vmap helper is to make vmap code paths fail
whenever hitting path that needs to sleep. Likely will be easy to implement.

-- 
Best regards,
Dmitry