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

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[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>
This commit is contained in:
Lewis Huang
2019-07-22 15:23:32 -04:00
committed by Alex Deucher
parent b5b1f45549
commit e5382701c3
1 changed files with 8 additions and 0 deletions
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drivers/gpu/drm/amd/display/dc/core/dc.c
+8
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@@ -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);