From f8bdb559c01e8291f1862ee9ab4a7eb13d6d62ac Mon Sep 17 00:00:00 2001 From: Will Aitken Date: Tue, 7 Oct 2025 14:49:15 +0000 Subject: [PATCH] drm/amdgpu: Enable xgmi extended peer links for sriov guest The amd-smi tool relies on extended peer link information to report xgmi link metrics. The necessary xgmi ta command, GET_EXTEND_PEER_LINKS, has been enabled in the host driver and this change is necessary for the guest to make use of it. To handle the case where the host driver does not have the latest xgmi ta, the guest driver checks for guest support through a pf2vf feature flag before invoking psp. Signed-off-by: Will Aitken Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c index 76ab8462d9ed2..0b10497d487c3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -1649,8 +1649,8 @@ int psp_xgmi_get_topology_info(struct psp_context *psp, amdgpu_ip_version(psp->adev, MP0_HWIP, 0) == IP_VERSION(13, 0, 14) || amdgpu_sriov_vf(psp->adev); - bool ta_port_num_support = amdgpu_sriov_vf(psp->adev) ? 0 : - psp->xgmi_context.xgmi_ta_caps & EXTEND_PEER_LINK_INFO_CMD_FLAG; + bool ta_port_num_support = psp->xgmi_context.xgmi_ta_caps & EXTEND_PEER_LINK_INFO_CMD_FLAG || + amdgpu_sriov_xgmi_ta_ext_peer_link_en(psp->adev); /* popluate the shared output buffer rather than the cmd input buffer * with node_ids as the input for GET_PEER_LINKS command execution. -- 2.47.3