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Commit 085c6c09 authored by Daniel Vetter's avatar Daniel Vetter
Browse files

drm: update todo.rst



Just drive-by, but we have gsoc running so better to update it now.

Great news is that two entries can be removed because essentially all
done.

v2: Keep a bunch of the todos, Gabriel is working on them.

Cc: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Reviewed-by: default avatarNeil Armstrong <narmstrong@baylibre.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170404095304.17599-1-daniel.vetter@ffwll.ch
parent cc85dcde
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+4 −27
Original line number Diff line number Diff line
@@ -16,7 +16,7 @@ De-midlayer drivers
With the recent ``drm_bus`` cleanup patches for 3.17 it is no longer required
to have a ``drm_bus`` structure set up. Drivers can directly set up the
``drm_device`` structure instead of relying on bus methods in ``drm_usb.c``
and ``drm_platform.c``. The goal is to get rid of the driver's ``->load`` /
and ``drm_pci.c``. The goal is to get rid of the driver's ``->load`` /
``->unload`` callbacks and open-code the load/unload sequence properly, using
the new two-stage ``drm_device`` setup/teardown.

@@ -175,7 +175,7 @@ fine-grained per-buffer object and per-context lockings scheme. Currently the
following drivers still use ``struct_mutex``: ``msm``, ``omapdrm`` and
``udl``.

Contact: Daniel Vetter
Contact: Daniel Vetter, respective driver maintainers

Switch to drm_connector_list_iter for any connector_list walking
----------------------------------------------------------------
@@ -217,6 +217,8 @@ plan is to switch to per-file driver API headers, which will also structure
the kerneldoc better. This should also allow more fine-grained ``#include``
directives.

In the end no .c file should need to include ``drmP.h`` anymore.

Contact: Daniel Vetter

Add missing kerneldoc for exported functions
@@ -244,13 +246,8 @@ be hidden so that driver writers don't accidentally end up using it. And to
prevent security issues in those legacy IOCTLs from being exploited on modern
drivers. This has multiple possible subtasks:

* Make sure legacy IOCTLs can't be used on modern drivers.
* Extract support code for legacy features into a ``drm-legacy.ko`` kernel
  module and compile it only when one of the legacy drivers is enabled.
* Extract legacy functions into their own headers and remove it that from the
  monolithic ``drmP.h`` header.
* Remove any lingering cruft from the OS abstraction layer from modern
  drivers.

This is mostly done, the only thing left is to split up ``drm_irq.c`` into
legacy cruft and the parts needed by modern KMS drivers.
@@ -408,23 +405,3 @@ Contact: Noralf Trønnes, Daniel Vetter

Outside DRM
===========

Better kerneldoc
----------------

This is pretty much done, but there's some advanced topics:

Come up with a way to hyperlink to struct members. Currently you can hyperlink
to the struct using ``#struct_name``, but not to a member within. Would need
buy-in from kerneldoc maintainers, and the big question is how to make it work
without totally unsightly
``drm_foo_bar_really_long_structure->even_longer_memeber`` all over the text
which breaks text flow.

Figure out how to integrate the asciidoc support for ascii-diagrams. We have a
few of those (e.g. to describe mode timings), and asciidoc supports converting
some ascii-art dialect into pngs. Would be really pretty to make that work.

Contact: Daniel Vetter, Jani Nikula

Jani is working on this already, hopefully lands in 4.8.