111 lines
4.6 KiB
Plaintext
111 lines
4.6 KiB
Plaintext
===============================================================================
|
|
TODOs
|
|
===============================================================================
|
|
|
|
1. Base this on drm-next - WIP
|
|
|
|
|
|
2. Cleanup commit history
|
|
|
|
|
|
3. WIP - Drop page flip helper and use DRM's version
|
|
|
|
|
|
4. DONE - Flatten all DC objects
|
|
* dc_stream/core_stream/stream should just be dc_stream
|
|
* Same for other DC objects
|
|
|
|
"Is there any major reason to keep all those abstractions?
|
|
|
|
Could you collapse everything into struct dc_stream?
|
|
|
|
I haven't looked recently but I didn't get the impression there was a
|
|
lot of design around what was public/protected, more whatever needed
|
|
to be used by someone else was in public."
|
|
~ Dave Airlie
|
|
|
|
|
|
5. DONE - Rename DC objects to align more with DRM
|
|
* dc_surface -> dc_plane_state
|
|
* dc_stream -> dc_stream_state
|
|
|
|
|
|
6. DONE - Per-plane and per-stream validation
|
|
|
|
|
|
7. WIP - Per-plane and per-stream commit
|
|
|
|
|
|
8. WIP - Split pipe_ctx into plane and stream resource structs
|
|
|
|
|
|
9. Attach plane and stream reources to state object instead of validate_context
|
|
|
|
|
|
10. Remove dc_edid_caps and drm_helpers_parse_edid_caps
|
|
* Use drm_display_info instead
|
|
* Remove DC's edid quirks and rely on DRM's quirks (add quirks if needed)
|
|
|
|
"Making sure you use the sink-specific helper libraries and kernel
|
|
subsystems, since there's really no good reason to have 2nd
|
|
implementation of those in the kernel. Looks likes that's done for mst
|
|
and edid parsing. There's still a bit a midlayer feeling to the edid
|
|
parsing side (e.g. dc_edid_caps and dm_helpers_parse_edid_caps, I
|
|
think it'd be much better if you convert that over to reading stuff
|
|
from drm_display_info and if needed, push stuff into the core). Also,
|
|
I can't come up with a good reason why DC needs all this (except to
|
|
reimplement half of our edid quirk table, which really isn't a good
|
|
idea). Might be good if you put this onto the list of things to fix
|
|
long-term, but imo not a blocker. Definitely make sure new stuff
|
|
doesn't slip in (i.e. if you start adding edid quirks to DC instead of
|
|
the drm core, refactoring to use the core edid stuff was pointless)."
|
|
~ Daniel Vetter
|
|
|
|
|
|
11. Remove dc/i2caux. This folder can be somewhat misleading. It's basically an
|
|
overy complicated HW programming function for sendind and receiving i2c/aux
|
|
commands. We can greatly simplify that and move it into dc/dceXYZ like other
|
|
HW blocks.
|
|
|
|
12. drm_modeset_lock in MST should no longer be needed in recent kernels
|
|
* Adopt appropriate locking scheme
|
|
|
|
13. get_modes and best_encoder callbacks look a bit funny. Can probably rip out
|
|
a few indirections, and consider removing entirely and using the
|
|
drm_atomic_helper_best_encoder default behaviour.
|
|
|
|
14. core/dc_debug.c, consider switching to the atomic state debug helpers and
|
|
moving all your driver state printing into the various atomic_print_state
|
|
callbacks. There's also plans to expose this stuff in a standard way across all
|
|
drivers, to make debugging userspace compositors easier across different hw.
|
|
|
|
15. Move DP/HDMI dual mode adaptors to drm_dp_dual_mode_helper.c. See
|
|
dal_ddc_service_i2c_query_dp_dual_mode_adaptor.
|
|
|
|
16. Move to core SCDC helpers (I think those are new since initial DC review).
|
|
|
|
17. There's still a pretty massive layer cake around dp aux and DPCD handling,
|
|
with like 3 levels of abstraction and using your own structures instead of the
|
|
stuff in drm_dp_helper.h. drm_dp_helper.h isn't really great and already has 2
|
|
incompatible styles, just means more reasons not to add a third (or well third
|
|
one gets to do the cleanup refactor).
|
|
|
|
18. There's a pile of sink handling code, both for DP and HDMI where I didn't
|
|
immediately recognize the standard. I think long term it'd be best for the drm
|
|
subsystem if we try to move as much of that into helpers/core as possible, and
|
|
share it with drivers. But that's a very long term goal, and by far not just an
|
|
issue with DC - other drivers, especially around DP sink handling, are equally
|
|
guilty.
|
|
|
|
19. DONE - The DC logger is still a rather sore thing, but I know that the
|
|
DRM_DEBUG stuff just isn't up to the challenges either. We need to figure out
|
|
something that integrates better with DRM and linux debug printing, while not
|
|
being useless with filtering output. dynamic debug printing might be an option.
|
|
|
|
20. Use kernel i2c device to program HDMI retimer. Some boards have an HDMI
|
|
retimer that we need to program to pass PHY compliance. Currently that's
|
|
bypassing the i2c device and goes directly to HW. This should be changed.
|
|
|
|
21. Remove vector.c from dc/basics. It's used in DDC code which can probably
|
|
be simplified enough to no longer need a vector implementation.
|