drm/amd/display: add S/G support for Renoir

S/G (scatter/gather) display support for display
buffers in system memory.

Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_display.c

@@ -528,6 +528,10 @@ uint32_t amdgpu_display_supported_domains(struct amdgpu_device *adev,
 			    (adev->apu_flags & AMD_APU_IS_PICASSO))
 				domain |= AMDGPU_GEM_DOMAIN_GTT;
 			break;
+		case CHIP_RENOIR:
+			domain |= AMDGPU_GEM_DOMAIN_GTT;
+			break;
+
 		default:
 			break;
 		}