linux-dev/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h, branch linus/master

drm/amd/display: Add support for zstate during extended vblank

2022-03-25T16:40:25Z

[why] When we enter FREESYNC_STATE_VIDEO, we want to use the extra vblank portion to enter zstate if possible. [how] When we enter freesync, a full update is triggered and the new vtotal with extra lines is passed to dml in a stream update. The time gained from extra vblank lines is calculated in microseconds. We allow zstate entry if the time gained is greater than 5 ms, which is the current policy. Furthermore, an optimized value for min_dst_y_next_start is calculated and written to its register. When exiting freesync, another full update is triggered and default values are restored. Reviewed-by: Nicholas Kazlauskas Acked-by: Alex Hung Signed-off-by: Gabe Teeger Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Set compbuf size to min at prep prevent overbook crb

2022-02-23T19:21:43Z

[Why] Detbuffer size is dynamically set for dcn31x. At certain moment, compbuf+(def size * num pipes) > config return buffer size causing flickering. This is easily reproducible when MPO is enabled with two displays. [How] At prepare BW, use the min comp buffer size. When it is to optimize BW, set compbuf size back to maximum possible size. Reviewed-by: Charlene Liu Acked-by: Solomon Chiu Signed-off-by: Duncan Ma Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amdgpu/display: Remove t_srx_delay_us.

2022-01-25T22:54:23Z

Unused. Convert the divisions into asserts on the divisor, to debug why it is zero. The divide by zero is suspected of causing kernel panics. While I have no idea where the zero is coming from I think this patch is a positive either way. Cc: stable@vger.kernel.org Reviewed-by: Harry Wentland Signed-off-by: Bas Nieuwenhuizen Signed-off-by: Alex Deucher

drm/amd/display: log additional register state for debug

2021-07-21T17:39:25Z

[Why & How] Extend existing state collection functions to add some additional registers useful for debug, and add state collection function for DC hubbub Acked-by: Rodrigo Siqueira Signed-off-by: Josip Pavic Signed-off-by: Alex Deucher

drm/amdgpu/display: fold DRM_AMD_DC_DCN3_1 into DRM_AMD_DC_DCN

2021-06-22T20:51:45Z

No need for a separate flag now that DCN3.1 is not in bring up. Fold into DRM_AMD_DC_DCN like previous DCN IPs. Reviewed-by: Nicholas Kazlauskas Signed-off-by: Alex Deucher

drm/amd/display: Add DCN3.1 DML calculation support

2021-06-04T20:39:18Z

DML (Display mode library) is used for calculating watermarks, bandwidth and for validating display configurations. Acked-by: Huang Rui Signed-off-by: Nicholas Kazlauskas Signed-off-by: Alex Deucher

drm/amd/display: fix odm scaling

2021-05-27T16:26:17Z

There are two issues with scaling calculations, odm recout calculation and matching viewport to actual recout. This change fixes both issues. Odm recout calculation via special casing and viewport matching issue by reworking the viewport calcualtion to use scaling ratios and recout to derrive the required offset and size. Signed-off-by: Dmytro Laktyushkin Reviewed-by: Jun Lei Acked-by: Qingqing Zhuo Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Cleanup DML DSC input bpc validation

2021-04-09T20:53:32Z

[Why & How] Pipe input DSC bpc has a type mismatch with maximum DSC input bpc - align the maximum with the pipe input type, unsigned integer. When checking the type we shoudl also check for an implicit value of 0 and align with what the spreadsheet does - default to max. Rename output_bpc to dsc_input_bpc to reflect what the field is actually used for. Signed-off-by: Nicholas Kazlauskas Reviewed-by: Dmytro Laktyushkin Acked-by: Qingqing Zhuo Signed-off-by: Alex Deucher

drm/amd/display: DIO Supported for virtual displays

2021-02-09T20:48:18Z

[WHY] Virtual displays do not use the backend of the pipe, and so have infinite backend bandwidth. [HOW] Add a skip_dio_check bool to the VBA struct, which is used to override the DIOSupport calculations. Signed-off-by: Wesley Chalmers Reviewed-by: Jun Lei Acked-by: Anson Jacob Acked-by: Chris Park Signed-off-by: Alex Deucher

drm/amd/display: remove unused dml variables

2020-11-16T17:18:55Z

Signed-off-by: Dmytro Laktyushkin Acked-by: Bindu Ramamurthy Signed-off-by: Alex Deucher