Ville Syrjälä 7707dd6022 drm/dp_mst: Fix fractional DSC bpp handling ...

The current code does '(bpp << 4) / 16' in the MST PBN
calculation, but that is just the same as 'bpp' so the
DSC codepath achieves absolutely nothing. Fix it up so that
the fractional part of the bpp value is actually used instead
of truncated away. 64*1006 has enough zero lsbs that we can
just shift that down in the dividend and thus still manage
to stick to a 32bit divisor.

And while touching this, let's just make the whole thing more
straightforward by making the passed in bpp value .4 binary
fixed point always, instead of having to pass in different
things based on whether DSC is enabled or not.

v2:
- Fix DSC kunit test cases.

Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: David Francis <David.Francis@amd.com>
Cc: Mikita Lipski <mikita.lipski@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Fixes: dc48529fb1 ("drm/dp_mst: Add PBN calculation for DSC modes")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[Imre: Fix kunit test cases]
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231030155843.2251023-3-imre.deak@intel.com

2023-11-08 17:22:05 +02:00

..

amdgpu_dm_color.c

Documentation/amdgpu_dm: Add DM color correction documentation

2022-08-16 18:14:32 -04:00

amdgpu_dm_crc.c

drm/amd/display: Remove redundant braces in 'amdgpu_dm_crtc_notify_ta_to_read()'

2023-07-07 13:38:57 -04:00

amdgpu_dm_crc.h

drm/amd/display: Fix in secure display context creation

2023-04-24 18:36:46 -04:00

amdgpu_dm_crtc.c

drm/amd/display: Enable Replay for static screen use cases

2023-08-31 17:51:50 -04:00

amdgpu_dm_crtc.h

drm/amd/display: add prefix to amdgpu_dm_crtc.h functions

2023-03-08 14:05:53 -05:00

amdgpu_dm_debugfs.c

drm/amd/display: Use seq_puts() in 'amdgpu_current_colorspace_show()' & 'edp_ilr_show()'

2023-07-07 13:39:02 -04:00

amdgpu_dm_debugfs.h

drm/amd/display: Move connector debugfs to drm

2022-05-23 11:27:44 +03:00

amdgpu_dm_hdcp.c

drm/amd/display: Change HDCP update sequence for DM

2023-08-07 17:14:09 -04:00

amdgpu_dm_hdcp.h

drm/amd/display: phase2 enable mst hdcp multiple displays

2023-01-17 15:41:19 -05:00

amdgpu_dm_helpers.c

Merge tag 'drm-misc-next-2023-09-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2023-09-29 08:27:15 +10:00

amdgpu_dm_irq_params.h

drm/amd/display: Implement secure display on DCN21

2022-10-27 14:42:32 -04:00

amdgpu_dm_irq.c

drm/amd/display: Clean up style problems in amdgpu_dm_irq.c

2023-07-07 13:38:53 -04:00

amdgpu_dm_irq.h

…

amdgpu_dm_mst_types.c

drm/dp_mst: Fix fractional DSC bpp handling

2023-11-08 17:22:05 +02:00

amdgpu_dm_mst_types.h

drm/amd/display: Add polling method to handle MST reply packet

2023-07-18 14:32:37 -04:00

amdgpu_dm_plane.c

drm/amd/display: enable cursor degamma for DCN3+ DRM legacy gamma

2023-09-06 22:09:33 -04:00

amdgpu_dm_plane.h

drm/amd/display: add prefix to amdgpu_dm_plane.h functions

2023-03-08 14:04:45 -05:00

amdgpu_dm_pp_smu.c

drm/amd/display: Clean up warnings in amdgpu_dm_pp_smu.c

2023-07-07 13:51:47 -04:00

amdgpu_dm_psr.c

drm/amd/display: Clean up warnings in amdgpu_dm _mst_types, _plane, _psr.c

2023-07-07 13:51:47 -04:00

amdgpu_dm_psr.h

drm/amd/display: Delay PSR entry

2021-06-21 17:45:14 -04:00

amdgpu_dm_replay.c

drm/amd/display: Get replay info from VSDB

2023-08-09 09:46:04 -04:00

amdgpu_dm_replay.h

drm/amd/display: Add Freesync Panel DM code

2023-08-07 17:14:07 -04:00

amdgpu_dm_services.c

…

amdgpu_dm_trace.h

drm/amd/display: Add events log to trace OPTC lock and unlock

2022-10-24 14:36:06 -04:00

amdgpu_dm.c

drm/dp_mst: Fix fractional DSC bpp handling

2023-11-08 17:22:05 +02:00

amdgpu_dm.h

drm/amd/display: fix replay_mode kernel-doc warning

2023-09-11 18:25:39 -04:00

dc_fpu.c

drm/amdgpu/display: Enable DC_FP for LoongArch

2023-06-09 09:36:48 -04:00

dc_fpu.h

drm/amd/display: Add DC_FP helper to check FPU state

2021-08-05 21:17:59 -04:00

Makefile

drm/amd/display: Add Freesync Panel DM code

2023-08-07 17:14:07 -04:00