Commit e5382701 authored Jul 22, 2019 by Lewis Huang Committed by Alex Deucher Aug 15, 2019

drm/amd/display: reprogram VM config when system resume



[Why]
The vm config will be clear to 0 when system enter S4. It will
cause hubbub didn't know how to fetch data when system resume.
The flip always pending because earliest_inuse_address and
request_address are different.

[How]
Reprogram VM config when system resume

Signed-off-by: Lewis Huang <Lewis.Huang@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent b5b1f455

drivers/gpu/drm/amd/display/dc/core/dc.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -2265,6 +2265,14 @@ void dc_set_power_state(
		dc_resource_state_construct(dc, dc->current_state);

		dc->hwss.init_hw(dc);

		#ifdef CONFIG_DRM_AMD_DC_DCN2_0
		if (dc->hwss.init_sys_ctx != NULL &&
		dc->vm_pa_config.valid) {
		dc->hwss.init_sys_ctx(dc->hwseq, dc, &dc->vm_pa_config);
		}
		#endif

		break;
		default:
		ASSERT(dc->current_state->stream_count == 0);