Victor Lu 3d4e52d0cf drm/amd/display: Add debugfs for forcing stream timing sync ... [why] There's currently no method to enable multi-stream synchronization from userspace and we don't check the VSDB bits to know whether or not specific displays should have the feature enable. [how] Add a debugfs entry that controls a new DM debug option, "force_timing_sync". This debug option will set on any newly created stream following the change to the debug option. Expose a new interface from DC that performs the timing sync and a helper to the "force_timing_sync" debugfs that iterates over the current streams and modifies the current synchornization state and grouping. Example usage to force a resync (from an X based desktop): echo 1 > /sys/kernel/debug/dri/0/amdgpu_dm_force_timing_sync xset dpms force off && xset dpms force on Signed-off-by: Victor Lu <victorchengchi.lu@amd.com> Reviewed-by: Aurabindo Jayamohanan Pillai <Aurabindo.Pillai@amd.com> Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Acked-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>		2020-08-04 17:29:28 -04:00
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amdgpu_dm.c	drm/amd/display: Add debugfs for forcing stream timing sync	2020-08-04 17:29:28 -04:00
amdgpu_dm.h	drm/amd/display: Add debugfs for forcing stream timing sync	2020-08-04 17:29:28 -04:00
amdgpu_dm_color.c	drm/amd/display: change global buffer to local buffer	2020-07-01 01:59:21 -04:00
amdgpu_dm_crc.c
amdgpu_dm_crc.h
amdgpu_dm_debugfs.c	drm/amd/display: Add debugfs for forcing stream timing sync	2020-08-04 17:29:28 -04:00
amdgpu_dm_debugfs.h
amdgpu_dm_hdcp.c	drm/amdgpu/display: Unlock mutex on error	2020-07-01 01:59:26 -04:00
amdgpu_dm_hdcp.h	drm/amd/display: Add sysfs interface for set/get srm	2020-02-06 15:04:36 -05:00
amdgpu_dm_helpers.c	drm/amd/display: Add DCN3 Support in DM (v2)	2020-07-01 01:59:15 -04:00
amdgpu_dm_irq.c
amdgpu_dm_irq.h
amdgpu_dm_mst_types.c	drm/amd/display: DSC Bit target rate debugfs write entry	2020-08-04 17:29:27 -04:00
amdgpu_dm_mst_types.h	drm/amdgpu/display: create fake mst encoders ahead of time (v4)	2020-07-10 17:50:00 -04:00
amdgpu_dm_pp_smu.c	drm/amdgpu/display: properly guard the calls to swSMU functions	2020-07-01 01:59:23 -04:00
amdgpu_dm_services.c	drm/amd/display: Handle persistence in DM	2020-05-28 14:00:47 -04:00
amdgpu_dm_trace.h
Makefile