linux-stable.git/drivers/gpu/drm/amd/display/dc/dm_helpers.h, branch linux-5.4.y

drm/amd/display: Add DSC support for Navi (v2)

2019-06-22T14:34:07+00:00

Add support for DCN2 DSC (Display Stream Compression)

HW Blocks:

 +--------++------+       +----------+
 | HUBBUB || HUBP |  <--  | MMHUBBUB |
 +--------++------+       +----------+
        |                     ^
        v                     |
    +--------+            +--------+
    |  DPP   |            |  DWB   |
    +--------+            +--------+
        |
        v                      ^
    +--------+                 |
    |  MPC   |                 |
    +--------+                 |
        |                      |
        v                      |
    +-------+      +-------+   |
    |  OPP  | <--> |  DSC  |   |
    +-------+      +-------+   |
        |                      |
        v                      |
    +--------+                /
    |  OPTC  |  --------------
    +--------+
        |
        v
    +--------+       +--------+
    |  DIO   |       |  DCCG  |
    +--------+       +--------+

v2: rebase (Alex)

Signed-off-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/amd/display: Poll pending DOWN_REP before enabling the link

2019-03-19T20:04:02+00:00

[Why]
With special monitor combination on MST, the UP_REQ could come
after clear payload table. It makes the pending DOWN_REP fail
to be handled after link training and the new DOWN_REQ will be queued
until time out .

[How]
To move the current polling pending DOWN_REP procedure to after
clear payload table to make sure the pending DOWN_REP can be
done before enabling the link.

Signed-off-by: Martin Tsai 
Reviewed-by: Tony Cheng 
Acked-by: Bhawanpreet Lakha 
Signed-off-by: Alex Deucher

drm/amd/display: Poll pending down rep before clear payload allocation table

2019-01-28T16:43:46+00:00

[Why]
On current design, driver cannot handle the interrupt for
down reply when link training is processing. The DOWN REQ
send before link training will keep in the pending DOWN REP
state in the queue.
It makes the next DOWN REQ be queued until time out.

[How]
To add a polling sequence before clear payload allocation table
to make sure the pending DOWN REP can be handled.

Signed-off-by: Martin Tsai 
Reviewed-by: Charlene Liu 
Acked-by: Leo Li 
Signed-off-by: Alex Deucher

drm/amd/display: Add hook for MST root branch info

2018-07-16T21:11:49+00:00

This allows DM to do any necessary updates before MST discovery starts.

Signed-off-by: Nikola Cornij 
Reviewed-by: Nikola Cornij 
Acked-by: Leo Li 
Signed-off-by: Alex Deucher

drm/amd/display: Serialize is_dp_sink_present

2018-07-13T19:48:21+00:00

Access to GPIO needs to be serialized. Aux transactions are already
serialized in DRM but we also need to serialize access to the GPIO pin
for purposes of DP dongle detection.

Call is_dp_sink_present through DM so we can lock correctly. This
follows the same pattern used for DPCD transactions.

Signed-off-by: Harry Wentland 
Reviewed-by: Jun Lei 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/amd/display: add diags clock programming

2018-03-05T20:34:40+00:00

Signed-off-by: Dmytro Laktyushkin 
Reviewed-by: Dmytro Laktyushkin 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/amd/display: move MST branch initialize to before link training

2018-03-05T20:32:20+00:00

some MST capable scaler doesn't like recieving CLEAR_PAYLOAD_ID_TABLE after
link training.  move branch initialize to before link training

Signed-off-by: Hersen Wu 
Signed-off-by: Tony Cheng 
Reviewed-by: Tony Cheng 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/amd/display: Implement HDMI retimer settings for RV AM4 support.

2017-09-26T22:16:45+00:00

Signed-off-by: Zeyu Fan 
Reviewed-by: Charlene Liu 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/amd/display: Rename dc_stream to dc_stream_state

2017-09-26T22:16:04+00:00

find -name Makefile -o -name Kconfig -o -name "*.c" -o -name "*.h" \
-o -name "*.cpp" -o -name "*.hpp" | \
xargs sed -i 's/struct dc_stream/struct dc_stream_state/g'

find -name Makefile -o -name Kconfig -o -name "*.c" -o -name "*.h" \
-o -name "*.cpp" -o -name "*.hpp" | \
xargs sed -i 's/struct dc_stream_state_update/struct dc_stream_update/g'

find -name Makefile -o -name Kconfig -o -name "*.c" -o -name "*.h" \
-o -name "*.cpp" -o -name "*.hpp" | \
xargs sed -i 's/struct dc_stream_state_status/struct dc_stream_status/g'

Plus some manual changes

Signed-off-by: Harry Wentland 
Reviewed-by: Tony Cheng 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/amd/display: log HUBP using DTN logging

2017-09-26T22:15:45+00:00

also simplify DTN INFO.  all we need is a way to have DC log register states
some where we can compare with golden.  going through connectivity is overkill.

Signed-off-by: Tony Cheng 
Reviewed-by: Yongqiang Sun 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher