diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c index 3ef5066ca529..b47422b0b5b1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c @@ -801,6 +801,23 @@ int amdgpu_xgmi_get_num_links(struct amdgpu_device *adev, return -EINVAL; } +bool amdgpu_xgmi_get_is_sharing_enabled(struct amdgpu_device *adev, + struct amdgpu_device *peer_adev) +{ + struct psp_xgmi_topology_info *top = &adev->psp.xgmi_context.top_info; + int i; + + /* Sharing should always be enabled for non-SRIOV. */ + if (!amdgpu_sriov_vf(adev)) + return true; + + for (i = 0 ; i < top->num_nodes; ++i) + if (top->nodes[i].node_id == peer_adev->gmc.xgmi.node_id) + return !!top->nodes[i].is_sharing_enabled; + + return false; +} + /* * Devices that support extended data require the entire hive to initialize with * the shared memory buffer flag set. |