[PATCH 31/32] fbdev: Warn on incorrect framebuffer access
Javier Martinez Canillas
javierm at redhat.com
Thu Nov 16 13:12:57 UTC 2023
Thomas Zimmermann <tzimmermann at suse.de> writes:
> Test in framebuffer read, write and drawing helpers if FBINFO_VIRTFB
> has been set correctly. Framebuffers in I/O memory should only be
> accessed with the architecture's respective helpers. Framebuffers
> in system memory should be accessed with the regular load and
> store operations. Presumably not all drivers get this right, so we
> now warn about it.
>
> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
> ---
Reviewed-by: Javier Martinez Canillas <javierm at redhat.com>
--
Best regards,
Javier Martinez Canillas
Core Platforms
Red Hat
More information about the dri-devel
mailing list