kernel/linux.git/drivers/gpu/drm/amd/display/dc/dm_helpers.h, branch v5.16.1

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

drm/amd/display: add helper for enabling mst stream features

2021-04-21T01:42:53+00:00

[Why] Some MST devices uses different method to enable mst specific stream features. [How] Add dm_helpers_mst_enable_stream features. This can be modified later when we are ready to implement those features. Signed-off-by: Bing Guo Reviewed-by: Anthony Koo Acked-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Fix typo for helpers function name

2021-03-24T03:32:46+00:00

[why] Word "helper" was misspelled as "helpes" in dm_helpes_dmub_outbox0_interrupt_control function. [how] Fix the spelling. Tested-by: Daniel Wheeler Signed-off-by: Leo (Hanghong) Ma Reviewed-by: Yongqiang Sun Acked-by: Solomon Chiu Signed-off-by: Alex Deucher

drm/amd/display: Implement dmub trace event

2021-03-02T19:07:10+00:00

[Why & How] DMUB FW send trace event via outbox0 interrupt. Driver will handle it. Tested-by: Daniel Wheeler Signed-off-by: Yongqiang Sun Reviewed-by: Tony Cheng Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: Clear dc remote sinks on MST disconnect

2020-12-01T20:59:57+00:00

[Why&How] Recent changes to upstream mst code remove the callback which cleared the internal state for mst. Move the missing functionality that was previously called through the destroy call back for mst connector destroy Signed-off-by: Aurabindo Pillai Signed-off-by: Eryk Brol Reviewed-by: Nicholas Kazlauskas Signed-off-by: Alex Deucher

drm/amdgpu: fold CONFIG_DRM_AMD_DC_DCN3* into CONFIG_DRM_AMD_DC_DCN (v3)

2020-11-04T22:11:37+00:00

Avoids confusion in configurations. v2: fix build when CONFIG_DRM_AMD_DC_DCN is disabled v3: rebase on latest code Reviewed-by: Luben Tuikov (v1) Signed-off-by: Alex Deucher