diff options
| author | Hawking Zhang <Hawking.Zhang@amd.com> | 2018-11-07 07:00:50 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-11-08 01:05:54 +0300 |
| commit | db0049129359eca348e5cc2782a90e78fda5bc85 (patch) | |
| tree | 1cd26359a18764af00fe4cf205631d09cd5cac2f /drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | |
| parent | bb8310cc22d7acd34db72f890c267b513dbc24ff (diff) | |
| download | linux-db0049129359eca348e5cc2782a90e78fda5bc85.tar.xz | |
drm/amdgpu: fix frame size of amdgpu_xgmi_add_devices excceed 1024 bytes
Instead of stack-allocated psp_xgmi_topology_info in function
amdgpu_xgmi_add_device, dynamically allocated this structure to
avoid the frame size of this function excceed 1024 bytes
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Xiaojie Yuan <xiaojie.yuan@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 | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c index e92b4548db49..56acdeab3812 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c @@ -63,7 +63,7 @@ static struct amdgpu_hive_info *amdgpu_get_xgmi_hive(struct amdgpu_device *adev) int amdgpu_xgmi_add_device(struct amdgpu_device *adev) { - struct psp_xgmi_topology_info tmp_topology; + struct psp_xgmi_topology_info *tmp_topology; struct amdgpu_hive_info *hive; struct amdgpu_xgmi *entry; struct amdgpu_device *tmp_adev; @@ -76,7 +76,9 @@ int amdgpu_xgmi_add_device(struct amdgpu_device *adev) adev->gmc.xgmi.node_id = psp_xgmi_get_node_id(&adev->psp); adev->gmc.xgmi.hive_id = psp_xgmi_get_hive_id(&adev->psp); - memset(&tmp_topology, 0, sizeof(tmp_topology)); + tmp_topology = kzalloc(sizeof(struct psp_xgmi_topology_info), GFP_KERNEL); + if (!tmp_topology) + return -ENOMEM; mutex_lock(&xgmi_mutex); hive = amdgpu_get_xgmi_hive(adev); if (!hive) @@ -84,9 +86,9 @@ int amdgpu_xgmi_add_device(struct amdgpu_device *adev) list_add_tail(&adev->gmc.xgmi.head, &hive->device_list); list_for_each_entry(entry, &hive->device_list, head) - tmp_topology.nodes[count++].node_id = entry->node_id; + tmp_topology->nodes[count++].node_id = entry->node_id; - ret = psp_xgmi_get_topology_info(&adev->psp, count, &tmp_topology); + ret = psp_xgmi_get_topology_info(&adev->psp, count, tmp_topology); if (ret) { dev_err(adev->dev, "XGMI: Get topology failure on device %llx, hive %llx, ret %d", @@ -96,7 +98,7 @@ int amdgpu_xgmi_add_device(struct amdgpu_device *adev) } /* Each psp need to set the latest topology */ list_for_each_entry(tmp_adev, &hive->device_list, gmc.xgmi.head) { - ret = psp_xgmi_set_topology_info(&tmp_adev->psp, count, &tmp_topology); + ret = psp_xgmi_set_topology_info(&tmp_adev->psp, count, tmp_topology); if (ret) { dev_err(tmp_adev->dev, "XGMI: Set topology failure on device %llx, hive %llx, ret %d", @@ -113,5 +115,6 @@ int amdgpu_xgmi_add_device(struct amdgpu_device *adev) exit: mutex_unlock(&xgmi_mutex); + kfree(tmp_topology); return ret; } |