kernel/linux.git/drivers/gpu/drm/amd/display/dc/dm_helpers.h, branch linux-6.0.y

drm/amd/display: remove redundant CONFIG_DRM_AMD_DC_DCN in dc

2022-05-10T21:53:12+00:00

[Why & How] CONFIG_DRM_AMD_DC_DCN is used by pass the compilation failures, but DC code should be OS-agnostic. This patch fixes it by removing unnecessasry CONFIG_DRM_AMD_DC_DCN in dc and dc/core directories. Reviewed-by: Rodrigo Siqueira Acked-by: Stylon Wang Signed-off-by: Alex Hung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: refine the EDID override

2022-03-04T18:03:29+00:00

[Why] We already get the SBIOS EDID via ACPI on KMD, but after that, we just use the monitor EDID to set it HDR caps [How] Make the SBIOS EDID override to read_edid() That can change the read EDID caps from the right EDID Reviewed-by: Aric Cyr Acked-by: Alan Liu Signed-off-by: jinzh Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Change return type of dm_helpers_dp_mst_stop_top_mgr

2022-01-25T23:00:35+00:00

Prepare for future dm can have different implementation depends on the return value. Tested-by: Daniel Wheeler Reviewed-by: Wenjing Liu Acked-by: Rodrigo Siqueira Signed-off-by: Ian Chen Signed-off-by: Alex Deucher

drm/amd/display: modify SMU_TIMEOUT macro.

2022-01-18T22:43:36+00:00

[WHY] If some SMU features are not enabled, SMU will return fail to that message. [HOW] SMU_TIMEOUT macro will treat "return fail" as timeout also. Correct the macro to only report timeout case. Reviewed-by: Jun Lei Acked-by: Wayne Lin Signed-off-by: Ian Chen Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amdgpu: replace drm_detect_hdmi_monitor() with drm_display_info.is_hdmi

2021-12-07T18:13:07+00:00

Once EDID is parsed, the monitor HDMI support information is available through drm_display_info.is_hdmi. The amdgpu driver still calls drm_detect_hdmi_monitor() to retrieve the same information, which is less efficient. Change to drm_display_info.is_hdmi This is a TODO task in Documentation/gpu/todo.rst Reviewed-by: Harry Wentland Signed-off-by: Claudio Suarez Signed-off-by: Alex Deucher

drm/amd/display: Support for SET_CONFIG processing with DMUB

2021-10-06T19:52:11+00:00

[Why] To process SET_CONFIG transactions with DMUB using inbox1 and outbox1 mail boxes. [How] 1) Added inbox1 DPIA command subtype DMUB_CMD__DPIA_SET_CONFIG_ACCESS to issue SET_CONFIG command to DMUB in dc_process_dmub_set_config_async(). DMUB processes the command with DPIA sends reply back immediately or in an outbox1 message triggering an outbox1 interrupt to driver. 2) DMUB posts SET_CONFIG reply as an Outbox1 message of type DMUB_OUT_CMD__SET_CONFIG_REPLY. 3) The dmub async to sync mechanism for AUX is modified to accommodate SET_CONFIG commands for both command issue and reply code paths. Reviewed-by: Jun Lei Acked-by: Wayne Lin Acked-by: Nicholas Kazlauskas Acked-by: Harry Wentland Signed-off-by: Meenakshikumar Somasundaram Signed-off-by: Alex Deucher

drm/amd/display: Add periodic detection when zstate is enabled

2021-09-14T19:57:10+00:00

[Why] When system is in Z10 HPD interrupts cannot fire, we may miss display configuration changes. [How] When Zstate is enabled, if DMUB indicate DCN has lost power, do a complete detection periodically. Reviewed-by: Nicholas Kazlauskas Acked-by: Mikita Lipski Signed-off-by: Eric Yang Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add DP 2.0 SST DC Support

2021-09-01T20:55:10+00:00

1. Retrieve 128/132b link cap. 2. 128/132b link training and payload allocation. 3. UHBR10 link rate support. [squash in warning fixes - Alex] Signed-off-by: Fangzhi Zuo Reviewed-by: Nicholas Kazlauskas Signed-off-by: Alex Deucher

drm/amd/display: Add DCN3.1 clock manager support

2021-06-04T20:03:26+00:00

Adds support for clock requests for the various parts of the DCN3.1 IP and the interfaces and definitions for sending messages to SMU/PMFW. Includes new support for z9/10, detecting SMU timeout and p-state support enablement. Acked-by: Huang Rui Signed-off-by: Nicholas Kazlauskas Signed-off-by: Alex Deucher

drm/amd/display: Support for DMUB AUX

2021-05-10T22:06:44+00:00

[WHY] To process AUX transactions with DMUB using inbox1 and outbox1 mail boxes. [How] 1) Added inbox1 command DMUB_CMD__DP_AUX_ACCESS to issue AUX commands to DMUB in dc_process_dmub_aux_transfer_async(). DMUB processes AUX cmd with DCN and sends reply back in an outbox1 message triggering an outbox1 interrupt to driver. 2) In existing driver implementation, AUX commands are processed synchronously by configuring DCN reg. But in DMUB AUX, driver sends an inbox1 message and waits for a conditional variable (CV) which will be signaled by outbox1 ISR. 3) DM will retrieve Outbox1 message and send back reply to upper layer and complete the AUX command Signed-off-by: Jude Shih Reviewed-by: Hanghong Ma Reviewed-by: Nicholas Kazlauskas Acked-by: Wayne Lin Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher