[PATCH v3 03/81] drm/fbdev: Add memory-agnostic fbdev client

Javier Martinez Canillas javierm at redhat.com
Tue Sep 3 10:42:00 UTC 2024


Thomas Zimmermann <tzimmermann at suse.de> writes:

> Add an fbdev client that can work with any memory manager. The
> client implementation is the same as existing code in fbdev-dma or
> fbdev-shmem.
>
> Provide struct drm_driver.fbdev_probe for the new client to allocate
> the surface GEM buffer. The new callback replaces fb_probe of struct
> drm_fb_helper_funcs, which does the same.
>
> To use the new client, DRM drivers set fbdev_probe in their struct
> drm_driver instance and call drm_fbdev_client_setup(). Probing and
> creating the fbdev surface buffer is now independent from the other
> operations in struct drm_fb_helper. For the pixel format, the fbdev
> client either uses a specified format, the value in preferred_depth
> or 32-bit RGB.
>
> v2:
> - test for struct drm_fb_helper.funcs for NULL (Sui)
> - respect struct drm_mode_config.preferred_depth for default format
>
> 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



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