drm/amdgpu: preserve the num_links in case of reflection

For topology reflection, each socket to every other socket has the
exactly same topology info as the other way around. So it is safe
to keep the reflected num_links value otherwise it will be overriden
by the link info output of GET_PEER_LINKS command.

Signed-off-by: Shiwu Zhang <shiwu.zhang@amd.com>
Reviewed-by: Le Ma <le.ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 4395c53..ea47012 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -1402,7 +1402,8 @@ int psp_xgmi_get_topology_info(struct psp_context *psp,
                        topology->nodes[i].num_links = get_extended_data ?
                                        topology->nodes[i].num_links +
                                                        link_info_output->nodes[i].num_links :
-                                       link_info_output->nodes[i].num_links;
+                                       ((requires_reflection && topology->nodes[i].num_links) ? topology->nodes[i].num_links :
+                                        link_info_output->nodes[i].num_links);
 
                        /* reflect the topology information for bi-directionality */
                        if (requires_reflection && topology->nodes[i].num_hops)