From: Yifan Zhang <yifan1.zhang@xxxxxxx>
[ Upstream commit 0b08c54bb7a37047a3a006e36c2270ebc62fef7d ]
[Why]
Screen corruption on Navi10 card
[How]
Set system context in DCN only on Renoir
Tested-by: Matt Coffin <mcoffin13@xxxxxxxxx>
Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Yifan Zhang <yifan1.zhang@xxxxxxx>
Reviewed-by: Roman Li <Roman.Li@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 547928cf284b5..96907707fdd94 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1085,10 +1085,14 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
dc_hardware_init(adev->dm.dc);
- mmhub_read_system_context(adev, &pa_config);
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+ if (adev->asic_type == CHIP_RENOIR) {
+ mmhub_read_system_context(adev, &pa_config);
- // Call the DC init_memory func
- dc_setup_system_context(adev->dm.dc, &pa_config);
+ // Call the DC init_memory func
+ dc_setup_system_context(adev->dm.dc, &pa_config);
+ }
+#endif
adev->dm.freesync_module = mod_freesync_create(adev->dm.dc);
if (!adev->dm.freesync_module) {
--
2.27.0
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