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

[Alex Deucher]

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.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 4d53d6f13c3b7..288fddadb0085 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -472,7 +472,10 @@ static void gfx_v11_0_check_fw_cp_gfx_shadow(struct amdgpu_device *adev)
 		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;
+			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;
-- 
2.41.0