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authorDaniel Vetter <daniel.vetter@ffwll.ch>2019-11-27 19:00:35 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2019-11-29 20:05:46 +0100
commit2c81bdc8024ef6f81dfecab86bcb97a8694dcd1e (patch)
treecae14fcee895f02034c614780e9e76074c599811 /Documentation/gpu/todo.rst
parent304a94a2e6debadd55c4e73cbec432dd57832856 (diff)
drm/todo: Add entry for fb funcs related cleanups
We're doing a great job for really simple drivers right now, but still a lot of boilerplate for the bigger ones. Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191127180035.416209-3-daniel.vetter@ffwll.ch
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@@ -182,6 +182,32 @@ Contact: Maintainer of the driver you plan to convert
Level: Intermediate
+drm_framebuffer_funcs and drm_mode_config_funcs.fb_create cleanup
+-----------------------------------------------------------------
+
+A lot more drivers could be switched over to the drm_gem_framebuffer helpers.
+Various hold-ups:
+
+- Need to switch over to the generic dirty tracking code using
+ drm_atomic_helper_dirtyfb first (e.g. qxl).
+
+- Need to switch to drm_fbdev_generic_setup(), otherwise a lot of the custom fb
+ setup code can't be deleted.
+
+- Many drivers wrap drm_gem_fb_create() only to check for valid formats. For
+ atomic drivers we could check for valid formats by calling
+ drm_plane_check_pixel_format() against all planes, and pass if any plane
+ supports the format. For non-atomic that's not possible since like the format
+ list for the primary plane is fake and we'd therefor reject valid formats.
+
+- Many drivers subclass drm_framebuffer, we'd need a embedding compatible
+ version of the varios drm_gem_fb_create functions. Maybe called
+ drm_gem_fb_create/_with_dirty/_with_funcs as needed.
+
+Contact: Daniel Vetter
+
+Level: Intermediate
+
Clean up mmap forwarding
------------------------