linux/drivers/gpu/drm/amd/display/modules, branch v5.17

drm/amd/display: unhard code link to phy idx mapping in dc link and clean up

2022-01-07T22:21:20Z

[why] 1. Current code hard codes link to PHY mapping in dc link level per asic per revision. This is not scalable. In long term the mapping will be obatined from DMUB and store in dc resource. 2. Depending on DCN revision and endpoint type, the definition of dio_output_idx dio_output_type and phy_idx are not consistent. We need to unify the meaning of these hardware indices across different system configuration. [how] 1. Temporarly move the hardcoded mapping to dc_resource level, which should have full awareness of asic specific configuration and add a TODO comment to move the mapping to DMUB. 2. populate dio_output_idx/phy_idx for all configuration, define usb4_enabled bit instead of dio_output_type as an external enum. Tested-by: Daniel Wheeler Reviewed-by: Eric Yang Acked-by: Rodrigo Siqueira Signed-off-by: Wenjing Liu Signed-off-by: Alex Deucher

drm/amd/display: Fix deadlock when falling back to v2 from v3

2021-10-28T18:26:51Z

[Why] A deadlock in the kernel occurs when we fallback from the V3 to V2 add_topology_to_display or remove_topology_to_display because they both try to acquire the dtm_mutex but recursive locking isn't supported on mutex_lock(). [How] Make the mutex_lock/unlock more fine grained and move them up such that they're only required for the psp invocation itself. Fixes: bf62221e9d0e ("drm/amd/display: Add DCN3.1 HDCP support") Signed-off-by: Nicholas Kazlauskas Reviewed-by: Aric Cyr Signed-off-by: Alex Deucher

drm/amd/display: Add support for USB4 on C20 PHY for DCN3.1

2021-10-28T18:26:14Z

[Why] Created new fields that matches new B0 structs On DCN31 the mapping of DIO output to PHY differs from A0 to B0 boards with new PHY C20 & this new mapping needed to be handled. [How] Mapped new structure based on new structs Added logic for mapping over A0 and B0 boards Hooked all new structs together. Reviewed-by: Wenjing Liu Acked-by: Agustin Gutierrez Tested-by: Daniel Wheeler Signed-off-by: Ahmad Othman Signed-off-by: Alex Deucher

drm/amd/display: Get ceiling for v_total calc

2021-10-28T18:26:14Z

Updating certain variable blanking calculations to use ceiling function. Reviewed-by: Chris Park Tested-by: Daniel Wheeler Acked-by: Agustin Gutierrez Signed-off-by: Bing Guo Signed-off-by: Alex Deucher

drm/amd/display: Revert adding degamma coefficients

2021-09-14T19:57:10Z

[Why] Degamma coefficients are calculated in our degamma formula using the regamma coefficients. We do not need to add separate degamma coefficients. [How] Remove the change to add separate degamma coefficients. Reviewed-by: Krunoslav Kovac Acked-by: Mikita Lipski Signed-off-by: Jaehyun Chung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Correct degamma coefficients

2021-09-14T19:57:10Z

[Why] Some incorrect coefficients were being used Reviewed-by: Michael Strauss Acked-by: Mikita Lipski Signed-off-by: Jaehyun Chung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add regamma/degamma coefficients and set sRGB when TF is BT709

2021-09-14T19:57:10Z

[Why] In YUV case, need to set the input TF to sRGB instead of BT709, even though the input TF type is distributed. SRGB was not being used because pixel format was not being set in the surface update sequence. Also, we were using the same coefficients for degamma and regamma formula, causing the cutoff point of the linear section of the curve to be incorrect. [How] Set pixel format in the surface update sequence. Add separate coefficient arrays for regamma and degamma. Reviewed-by: Krunoslav Kovac Acked-by: Mikita Lipski Signed-off-by: Jaehyun Chung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd: consolidate TA shared memory structures

2021-08-18T22:22:53Z

Signed-off-by: Candice Li Reviewed-by: John Clements Signed-off-by: Alex Deucher

drm/amd/display: add authentication_complete in hdcp output

2021-08-09T19:43:33Z

[why] DM needs to be notified when hdcp module has completed authentication attempt. Reviewed-by: Bhawanpreet Lakha Reviewed-by: George Shen Acked-by: Anson Jacob Signed-off-by: Wenjing Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: remove unused functions

2021-07-28T20:37:17Z

[why] It has been decided that opm state query support will be dropped. Therefore link encryption enabled and save current encryption states won't be used anymore and there are no foreseeable usages in the future. We will remove these two interfaces for clean up. Acked-by: Solomon Chiu Signed-off-by: Wenjing Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher