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 <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 3a7af59e83ca11ea1409e8903899d302b5b3187c..0451533ddde41eb2b54972cde098368746ee76fa 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/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;