[AMD Official Use Only - AMD Internal Distribution Only] Reviewed-by: Asad Kamal <[email protected]>
Thanks & Regards Asad -----Original Message----- From: Lazar, Lijo <[email protected]> Sent: Friday, February 6, 2026 7:26 PM To: [email protected] Cc: Zhang, Hawking <[email protected]>; Deucher, Alexander <[email protected]>; Kamal, Asad <[email protected]>; Skvortsov, Victor <[email protected]>; Aitken, Will <[email protected]>; Louis, Simon <[email protected]>; Louis, Simon <[email protected]>; Louis, Simon <[email protected]> Subject: [PATCH 2/2] drm/amdgpu: Add xgmi link status for VFs From: Simon Louis <[email protected]> Xgmi link status is unavailable in guest. This patch returns AMDGPU_XGMI_LINK_NA for VFs. Signed-off-by: Simon Louis <[email protected]> Signed-off-by: Lijo Lazar <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | 3 +++ drivers/gpu/drm/amd/include/kgd_pp_interface.h | 2 ++ 2 files changed, 5 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c index 0ca6fa40a87c..08731d4be177 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c @@ -347,6 +347,9 @@ int amdgpu_get_xgmi_link_status(struct amdgpu_device *adev, int global_link_num) { u32 xgmi_state_reg_val; + if (amdgpu_sriov_vf(adev)) + return AMDGPU_XGMI_LINK_NA; + if (adev->gmc.xgmi.num_physical_nodes <= 1) return -EINVAL; diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h b/drivers/gpu/drm/amd/include/kgd_pp_interface.h index 6683ffd6aa68..bdf8e6ff556c 100644 --- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h +++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h @@ -1832,6 +1832,8 @@ struct amdgpu_partition_metrics_v1_1 { enum amdgpu_xgmi_link_status { AMDGPU_XGMI_LINK_INACTIVE = 0, AMDGPU_XGMI_LINK_ACTIVE = 1, + /* Status not available */ + AMDGPU_XGMI_LINK_NA = 2, }; #endif -- 2.49.0
