talos-op-linux/drivers/gpu/drm/amd/display/dc/dcn10, branch master

drm/amd/display: Only enable cursor on pipes that need it

2020-02-04T15:32:22+00:00

[Why] In current code we're essentially drawing the cursor on every pipe that contains it. This only works when the planes have the same scaling for src to dest rect, otherwise we'll get "double cursor" where one cursor is incorrectly filtered and offset from the real position. [How] Without dedicated cursor planes on DCN we require at least one pipe that matches the scaling of the current timing. This is an optimization and workaround for the most common case where the top-most plane is not scaled but the bottom-most plane is scaled. Whenever a pipe has a parent pipe in the blending tree whose recout fully contains the current pipe we can disable the pipe. This only applies when the pipe is actually visible of course. Signed-off-by: Nicholas Kazlauskas Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Enable double buffer for OTG_BLANK

2020-01-16T19:16:27+00:00

[Why] Currently if seamless boot is enabled, we will skip double buffer enable for OTG_BLANK. However, we need the double buffer enable in order to block global sync signals when OTG becomes blanked (for PSR). Blocking global sync signals prevent pipe from requesting data. [How] Move tg_init before seamless boot check. Signed-off-by: Alvin Lee Reviewed-by: Jun Lei Acked-by: Harry Wentland Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: make PSR static screen entry within 30 ms

2020-01-16T19:16:08+00:00

[Why] With different refresh rate panels, the PSR entry/exit time is different since it is dependent on 2 frame entry time today [How] Make static screen num frame entry time to be calculated such that entry time is within 30 ms instead of fixed num frames. Signed-off-by: Anthony Koo Reviewed-by: Tony Cheng Acked-by: Aric Cyr Acked-by: Harry Wentland Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: Add default switch case for DCC

2020-01-16T19:15:42+00:00

Signed-off-by: Chris Park Reviewed-by: Aric Cyr Reviewed-by: Jordan Lazare Acked-by: Harry Wentland Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: Fix double buffering in dcn2 ICSC

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

[Why] When rapidly adjusting video brightness, screen tearing was observed. This was due to overwritten values in ICSC registers. In dcn10, this issue had been fixed by implementing double buffering via alternating ICSC modes. However, the second register set used in dcn1 doesn't exist in dcn2. [How] Create new program_input_csc for dcn20. Use ICSC_B registers instead of COMA registers as second set. Signed-off-by: Noah Abradjian Reviewed-by: Tony Cheng Acked-by: Harry Wentland Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: use true, false for bool variable in dcn10_hw_sequencer.c

2020-01-07T16:56:23+00:00

Fixes coccicheck warning: drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c:482:6-14: WARNING: Assignment of 0/1 to bool variable drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c:485:2-10: WARNING: Assignment of 0/1 to bool variable Reported-by: Hulk Robot Signed-off-by: zhengbin Signed-off-by: Alex Deucher

drm/amd/display: fix missing cursor on some rotated SLS displays

2019-12-18T21:09:10+00:00

[Why] Cursor disappears for some SLS displays that are rotated 180 and 270 degrees. This occurs when there is no pipe split being done ( ex. 3 or more displays ). The cursor calculations assume pipe splitting is done so when it calculates the new cursor position in hwss.set_cursor_position(), it is out-of-bounds so it disables the cursor in hubp.set_cursor_position(). [How] In non pipe split cases, calculate cursor using viewport size ( width or height ) instead of viewport size * 2 ( the two because pipe splitting divides the rectangle into two ). Signed-off-by: Samson Tam Reviewed-by: Jun Lei Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: Remove reliance on pipe indexing

2019-12-18T21:09:09+00:00

[Why] In certain instances, there was a reliance on pipe indexing being accurate. However, this assumption fails with harvesting of pipes 1 or 2, which can occur in production B6 parts. HW hang would occur as a result. [How] Use hubp index for mpcc, and do mpc_init for all theoretical pipes (including disabled ones). Signed-off-by: Noah Abradjian Reviewed-by: Yongqiang Sun Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: check link status before disable stream

2019-12-18T21:09:09+00:00

[Why] 1. Set second screen only then unplug external monitor 2. Enter to S4 then plug in external monitor 3. Resume from S4, eDP will not turn off when OS set second screen only Sometimes OS will not set eDP power up cause eDP dpms_off keep true then driver skipp disable stream [How] When drvier try to disable stream, add link status condition Signed-off-by: Paul Hsieh Reviewed-by: Anthony Koo Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: update chroma viewport wa

2019-12-18T21:09:08+00:00

[Why] Need previously implemented chroma vp wa to work for rotation cases. [How] Implement rotation specific wa. Signed-off-by: Eric Yang Reviewed-by: Tony Cheng Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher