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authorWill Aitken <wiaitken@amd.com>2025-09-30 16:24:07 +0000
committerAlex Deucher <alexander.deucher@amd.com>2025-11-14 11:27:29 -0500
commitf1a2cd427d0401c1888c04613fb18d272825a5c2 (patch)
tree4d43759952182712f43408fa81b27ff25b2cc3d7 /drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
parentb84bc92607144f04c5d140177fe45faec0ec9b9b (diff)
drm/amdgpu: Refactor sriov xgmi topology filling to common code
amdgpu_xgmi_fill_topology_info and psp_xgmi_reflect_topology_info perform the same logic of copying topology info of one node to every other node in the hive. Instead of having two functions that purport to do the same thing, this refactoring moves the logic of the fill function to the reflect function and adds reflecting port number info as well for complete functionality. Signed-off-by: Will Aitken <wiaitken@amd.com> Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c19
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index aa7987d0806c..76ab8462d9ed 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -1539,6 +1539,7 @@ static void psp_xgmi_reflect_topology_info(struct psp_context *psp,
uint64_t src_node_id = psp->adev->gmc.xgmi.node_id;
uint64_t dst_node_id = node_info.node_id;
uint8_t dst_num_hops = node_info.num_hops;
+ uint8_t dst_is_sharing_enabled = node_info.is_sharing_enabled;
uint8_t dst_num_links = node_info.num_links;
hive = amdgpu_get_xgmi_hive(psp->adev);
@@ -1558,13 +1559,20 @@ static void psp_xgmi_reflect_topology_info(struct psp_context *psp,
continue;
mirror_top_info->nodes[j].num_hops = dst_num_hops;
- /*
- * prevent 0 num_links value re-reflection since reflection
+ mirror_top_info->nodes[j].is_sharing_enabled = dst_is_sharing_enabled;
+ /* prevent 0 num_links value re-reflection since reflection
* criteria is based on num_hops (direct or indirect).
- *
*/
- if (dst_num_links)
+ if (dst_num_links) {
mirror_top_info->nodes[j].num_links = dst_num_links;
+ /* swap src and dst due to frame of reference */
+ for (int k = 0; k < dst_num_links; k++) {
+ mirror_top_info->nodes[j].port_num[k].src_xgmi_port_num =
+ node_info.port_num[k].dst_xgmi_port_num;
+ mirror_top_info->nodes[j].port_num[k].dst_xgmi_port_num =
+ node_info.port_num[k].src_xgmi_port_num;
+ }
+ }
break;
}
@@ -1639,7 +1647,8 @@ int psp_xgmi_get_topology_info(struct psp_context *psp,
amdgpu_ip_version(psp->adev, MP0_HWIP, 0) ==
IP_VERSION(13, 0, 6) ||
amdgpu_ip_version(psp->adev, MP0_HWIP, 0) ==
- IP_VERSION(13, 0, 14);
+ 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;