Symbol: dm_set_vblank
sys/dev/drm/amd/display/amdgpu_dm/amdgpu_dm.c
3020
return dm_set_vblank(crtc, true);
sys/dev/drm/amd/display/amdgpu_dm/amdgpu_dm.c
3025
dm_set_vblank(crtc, false);