[AMD Public Use]

Reviewed-by: Roman Li <[email protected]>

-----Original Message-----
From: Yifan Zhang <[email protected]> 
Sent: Wednesday, October 21, 2020 10:24 AM
To: [email protected]
Cc: Li, Sun peng (Leo) <[email protected]>; Wentland, Harry 
<[email protected]>; Li, Roman <[email protected]>; Zhang, Yifan1 
<[email protected]>; Deucher, Alexander <[email protected]>
Subject: [PATCH] drm/amd/display: Fix the display corruption issue on Navi10

[Why]
Screen corruption on Navi10 card

[How]
Set system context in DCN only on Renoir

Acked-by: Alex Deucher <[email protected]>
Signed-off-by: Yifan Zhang <[email protected]>
Signed-off-by: Roman Li <[email protected]>
---
 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 71ecd963759e..ed0e7680b420 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1061,10 +1061,14 @@ 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) {
-- 
2.25.1
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