diff options
| author | shaoyunl <shaoyun.liu@amd.com> | 2019-04-17 14:28:18 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-05-24 12:20:48 -0500 |
| commit | da361dd13f4fb766445f55bbd2eec36c73a9b1bb (patch) | |
| tree | 98547fe53ee4003abdc2ab5e41919b60877c6a40 /drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | |
| parent | d8e408a82704c86ba87c3d58cfe69dcdb758aa07 (diff) | |
| download | linux-da361dd13f4fb766445f55bbd2eec36c73a9b1bb.tar.bz2 | |
drm/amdgpu: Implement get num of hops between two xgmi device
KFD need to provide the info for upper level to determine the data path
Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c index a48c84c51775..04dfc8b79e39 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c @@ -238,7 +238,7 @@ int amdgpu_xgmi_update_topology(struct amdgpu_hive_info *hive, struct amdgpu_dev /* Each psp need to set the latest topology */ ret = psp_xgmi_set_topology_info(&adev->psp, hive->number_devices, - &hive->topology_info); + &adev->psp.xgmi_context.top_info); if (ret) dev_err(adev->dev, "XGMI: Set topology failure on device %llx, hive %llx, ret %d", @@ -248,9 +248,22 @@ int amdgpu_xgmi_update_topology(struct amdgpu_hive_info *hive, struct amdgpu_dev return ret; } + +int amdgpu_xgmi_get_hops_count(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_hops; + return -EINVAL; +} + int amdgpu_xgmi_add_device(struct amdgpu_device *adev) { - struct psp_xgmi_topology_info *hive_topology; + struct psp_xgmi_topology_info *top_info; struct amdgpu_hive_info *hive; struct amdgpu_xgmi *entry; struct amdgpu_device *tmp_adev = NULL; @@ -283,16 +296,16 @@ int amdgpu_xgmi_add_device(struct amdgpu_device *adev) goto exit; } - hive_topology = &hive->topology_info; + top_info = &adev->psp.xgmi_context.top_info; list_add_tail(&adev->gmc.xgmi.head, &hive->device_list); list_for_each_entry(entry, &hive->device_list, head) - hive_topology->nodes[count++].node_id = entry->node_id; + top_info->nodes[count++].node_id = entry->node_id; hive->number_devices = count; /* Each psp need to get the latest topology */ list_for_each_entry(tmp_adev, &hive->device_list, gmc.xgmi.head) { - ret = psp_xgmi_get_topology_info(&tmp_adev->psp, count, hive_topology); + ret = psp_xgmi_get_topology_info(&tmp_adev->psp, count, top_info); if (ret) { dev_err(tmp_adev->dev, "XGMI: Get topology failure on device %llx, hive %llx, ret %d", |