Commit 81af3252 authored by Alex Deucher's avatar Alex Deucher
Browse files

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: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent ec8e59cb

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

+6 −2
Original line number Diff line number Diff line
@@ -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.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;