linux.git/drivers/gpu/drm/amd/display/dmub, branch v5.6

drm/amd/display: Check hw_init state when determining if DMCUB is initialized

2020-01-22T21:55:28+00:00

[Why]
CW2 may already be programmed when coming back from S4. In this case
we want to unconditionally replace whatever DMCUB version is currently
enabled with the latest.

[How]
Check the hw_init flag to know whether or not we've previously executed
the initliazed routine.

Signed-off-by: Nicholas Kazlauskas 
Reviewed-by: Tony Cheng 
Acked-by: Bhawanpreet Lakha 
Signed-off-by: Alex Deucher

drm/amd/display: Reset inbox rptr/wptr when resetting DMCUB

2020-01-22T21:55:28+00:00

[Why]
These logically make sense more to be set after the DMCUB has been
reset rather than when we setup the inbox.

[How]
Move them into the reset callback.

Signed-off-by: Nicholas Kazlauskas 
Reviewed-by: Tony Cheng 
Acked-by: Bhawanpreet Lakha 
Signed-off-by: Alex Deucher

drm/amd/display: Add hardware reset interface for DMUB service

2020-01-22T21:55:28+00:00

[Why]
We'll need this to perform a clean shutdown before unloading the driver.

[How]
It will call reset internally and set hw_init to false. It won't do
anything if the hardware isn't initialized.

Signed-off-by: Nicholas Kazlauskas 
Reviewed-by: Tony Cheng 
Acked-by: Bhawanpreet Lakha 
Signed-off-by: Alex Deucher

drm/amd/display: Get fb base and fb offset for DMUB from registers

2020-01-22T21:55:27+00:00

[Why]
Under some hardware initialization sequences the fb base/fb offset
provided can be zero or hardwareinit can happen too late.

We want to ensure that we always have the correct fb_base/fb_offset
when performing DMCUB hardware initialization so we can do DMCUB
command table offloading during first dc hardware init.

[How]
Read from the DCN registers. VBIOS already filled these in for us.

Signed-off-by: Nicholas Kazlauskas 
Reviewed-by: Wesley Chalmers 
Acked-by: Bhawanpreet Lakha 
Signed-off-by: Alex Deucher

drm/amd/display: Only program surface flip for video plane via dmcub

2020-01-16T19:16:33+00:00

Only need to do surface flip for video plane via dmcub.

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

drm/amd/display: Fix DMUB PSR command IDs

2020-01-16T19:15:11+00:00

[Why]
The DMUB PSR command IDs do not have the correct values.

[How]
Fix the command IDs and cleanup the formatting.

Signed-off-by: Wyatt Wood 
Reviewed-by: Aric Cyr 
Acked-by: Harry Wentland 
Acked-by: Rodrigo Siqueira 
Signed-off-by: Alex Deucher

drm/amd/display: Refactor surface flip programming

2020-01-16T19:14:02+00:00

Rework surface programming for RN to separate preparing parameters and
register programming.

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

drm/amd/display: DMCUB FW Changes to support PSR

2020-01-16T19:13:46+00:00

[Why]
Moving PSR from DMCU to DMCUB.

[How]
Cleanup psr spec files and add PSR hw programming files.
No functionality is included in this change.

Signed-off-by: Wyatt Wood 
Reviewed-by: Tony Cheng 
Acked-by: Harry Wentland 
Acked-by: Rodrigo Siqueira 
Signed-off-by: Alex Deucher

drm/amd/display: programing surface flip by dmcub.

2020-01-16T19:13:38+00:00

Programming surface flip addresses via dmcub uC for optimizing the data
flush.

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

drm/amd/display: Driverside changes to support PSR in DMCUB

2020-01-16T19:13:23+00:00

[Why]
Moving PSR from DMCU to DMCUB.

[How]
Add driverside PSR changes required to send inbox messages to fw.
These changes are non-functional until the psr structure allocation
is uncommented.

Signed-off-by: Wyatt Wood 
Reviewed-by: Nicholas Kazlauskas 
Acked-by: Harry Wentland 
Acked-by: Rodrigo Siqueira 
Signed-off-by: Alex Deucher