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authorAlex Deucher <alexander.deucher@amd.com>2023-07-28 16:53:49 -0400
committerAlex Deucher <alexander.deucher@amd.com>2023-08-09 09:46:04 -0400
commit81af32520e7aaa337fe132f16c12ce54170187ea (patch)
tree3783830875af7abbf2f8a5d4614c2baa06d750c7
parentec8e59cb4e0c1a52d5a541fff9dcec398b48f7b4 (diff)
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>
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index e7833010bf79..5c3db694afa8 100644
--- 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;