[30/49] drm/amd/display: reprogram VM config when system resume

Submitted by sunpeng.li@amd.com on Aug. 9, 2019, 9:37 p.m.

Details

Message ID 20190809213742.30301-31-sunpeng.li@amd.com
State New
Headers show
Series "DC Patches 09 Aug, 2019" ( rev: 1 ) in AMD X.Org drivers

Not browsing as part of any series.

Commit Message

sunpeng.li@amd.com Aug. 9, 2019, 9:37 p.m.
From: Lewis Huang <Lewis.Huang@amd.com>

[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>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 8 ++++++++
 1 file changed, 8 insertions(+)

Patch hide | download patch | download mbox

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index f7a3d652be5f..7408df05d3e5 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2262,6 +2262,14 @@  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);