kernel/linux.git/drivers/gpu/drm/amd/display/dc/dm_services.h, branch v6.12.80

drm/amd/display: Disable VRR on DCE 6

2025-11-13T20:34:25+00:00

[ Upstream commit 043c87d7d56e135393f8aab927148096e2d17589 ] DCE 6 was not advertised as being able to support VRR, so let's mark it as unsupported for now. The VRR implementation in amdgpu_dm depends on the VUPDATE interrupt which is not registered for DCE 6. Signed-off-by: Timur Kristóf Reviewed-by: Rodrigo Siqueira Reviewed-by: Alex Deucher Reviewed-by: Alex Hung Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: Add dummy interface for tracing DCN32 SMU messages

2024-04-10T02:03:13+00:00

[Why/How] Some issues may require a trace of the previous SMU messages from DC to understand the context and aid in debugging. Actual logging to be implemented when needed. Reviewed-by: Josip Pavic Acked-by: Roman Li Signed-off-by: George Shen Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Show the DCN/DCE version in the log

2023-06-09T13:34:09+00:00

Some times people send their dmesg log for debugging, and one common task is to check the modesetting line to catch which DCN/DCE we need to debug. This commit introduces a simple conversion from the DCN/DCE version to a string shown in the dmesg log. Reviewed-by: Hamza Mahfooz Acked-by: Alex Hung Signed-off-by: Rodrigo Siqueira Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: refactor dmub commands into single function

2023-04-18T20:28:52+00:00

[Why & How] Consolidate dmub access to a single interface. This makes it easier to add code in the future that needs to run every time a dmub command is requested (e.g. instrumentation, locking etc). Reviewed-by: Nicholas Kazlauskas Acked-by: Qingqing Zhuo Signed-off-by: Josip Pavic Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Decouple amdgpu_dm_trace from service

2020-10-26T17:33:59+00:00

Our DC currently uses some of the tracepoint function inside a DC header, which means that many other files implicitly include part of the trace function. This situation limits how we can expand this feature for other parts of the driver by generating multiple compilation errors when we try to reuse some of the existing structures. This commit decouples part of the amdgpu_dm_trace from DC core to simplify the trace enlargement in future changes. Signed-off-by: Rodrigo Siqueira Acked-by: Aurabindo Pillai Signed-off-by: Alex Deucher

drm/amd/display: Handle persistence in DM

2020-05-28T18:00:47+00:00

[Why] Remove dm_write_persistent_data and dm_read_persistent_data as persistence should be handled in DM. [How] Remove functions. Move read/write calls into DM layer while maintaining logic. Signed-off-by: Jaehyun Chung Reviewed-by: Anthony Koo Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: Drop CONFIG_DRM_AMD_DC_DMUB guards

2019-11-13T20:29:42+00:00

[Why] Support for DMUB only depends on support for DC. It doesn't use floating point so we don't need to guard it by any specific DCN revision. [How] Drop the guards and cleanup the newlines around each one. Signed-off-by: Nicholas Kazlauskas Reviewed-by: Hersen Wu Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Add DMUB support to DC

2019-11-13T20:29:42+00:00

DC will use DMUB for command submission and flow control during initialization. Register offloading as well as submitting some BIOS commands are part of the DC internal interface but are guarded behind debug options. It won't be functional in amdgpu_dm yet since we don't pass the DMUB service to DC for use. Signed-off-by: Nicholas Kazlauskas Reviewed-by: Hersen Wu Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: refactor dump_clk_registers

2019-07-18T19:18:09+00:00

[why] for 2 purposes: 1. get raw register value dumped on the log, which will make it easier to talk to other team who only knows about the register 2. enable other HW to be able to use the same interface as raven to log clock register data Signed-off-by: Su Sung Chung Reviewed-by: Tony Cheng Acked-by: Leo Li Signed-off-by: Alex Deucher

drm/amd/display: Move dm_read_reg_func to dc_helper.

2019-03-21T04:39:48+00:00

Move out of header to dc_helper.c, in preparation for future implementations. Signed-off-by: Yongqiang Sun Reviewed-by: Tony Cheng Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher