fbmem: don't allow too huge resolutions

[linux-2.6-microblaze.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_xgmi.c

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
index 8567d5d..258cf86 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
@@ -486,6 +486,18 @@ int amdgpu_xgmi_get_hops_count(struct amdgpu_device *adev,
        return  -EINVAL;
 }
 
+int amdgpu_xgmi_get_num_links(struct amdgpu_device *adev,
+               struct amdgpu_device *peer_adev)
+{
+       struct psp_xgmi_topology_info *top = &adev->psp.xgmi_context.top_info;
+       int i;
+
+       for (i = 0 ; i < top->num_nodes; ++i)
+               if (top->nodes[i].node_id == peer_adev->gmc.xgmi.node_id)
+                       return top->nodes[i].num_links;
+       return  -EINVAL;
+}
+
 int amdgpu_xgmi_add_device(struct amdgpu_device *adev)
 {
        struct psp_xgmi_topology_info *top_info;