diff options
| author | Jonathan Kim <[email protected]> | 2021-05-12 16:30:41 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2021-07-23 14:07:59 +0000 |
| commit | 3f46c4e9ce25bbcb9d619dbce57c8737c856b272 (patch) | |
| tree | 770486122e37b2b72b14c3a27f6b31b8f4005071 /drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | |
| parent | drm/amdgpu: add psp command to get num xgmi links between direct peers (diff) | |
| download | kernel-3f46c4e9ce25bbcb9d619dbce57c8737c856b272.tar.gz kernel-3f46c4e9ce25bbcb9d619dbce57c8737c856b272.zip | |
drm/amdkfd: report xgmi bandwidth between direct peers to the kfd
Report the min/max bandwidth in megabytes to the kfd for direct
xgmi connections only. Indirect peers will report 0 since
indirect route is unknown.
Signed-off-by: Jonathan Kim <[email protected]>
Reviewed-by: Felix Kuehling <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c index 8567d5d77346..258cf86b32f6 100644 --- 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; |