drm/amdgpu/gfx11: only enable CP GFX shadowing on SR-IOV

This is only required for SR-IOV world switches, but it
adds additional latency leading to reduced performance in
some benchmarks.  Disable for now on bare metal.

Reviewed-by: Christian König <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

Author: alexdeucher

drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c

@@ -471,8 +471,12 @@ static void gfx_v11_0_check_fw_cp_gfx_shadow(struct amdgpu_device *adev)
 	case IP_VERSION(11, 0, 3):
 		if ((adev->gfx.me_fw_version >= 1505) &&
 		    (adev->gfx.pfp_fw_version >= 1600) &&
-		    (adev->gfx.mec_fw_version >= 512))
-			adev->gfx.cp_gfx_shadow = true;
+		    (adev->gfx.mec_fw_version >= 512)) {
+			if (amdgpu_sriov_vf(adev))
+				adev->gfx.cp_gfx_shadow = true;
+			else
+				adev->gfx.cp_gfx_shadow = false;
+		}
 		break;
 	default:
 		adev->gfx.cp_gfx_shadow = false;