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drm/amdgpu: Avoid another list of reset devices

Browse source 
A list of devices to be reset is already created in
amdgpu_device_gpu_recover function. Creating another list with the
same nodes is incorrect and not supported in list_head. Instead, pass
the device list as part of reset context.

Fixes: 9e08564727 (drm/amdgpu: Refactor mode2 reset logic for v13.0.2)
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar 2022-08-03 16:54:24 +05:30 committed by Alex Deucher
parent b2f6c73561
commit 0a83bb35d8
3 changed files with 17 additions and 31 deletions
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45
drivers/gpu/drm/amd/amdgpu/aldebaran.c
View file

@ -148,30 +148,22 @@ aldebaran_mode2_perform_reset(struct amdgpu_reset_control *reset_ctl,
struct amdgpu_reset_context *reset_context)
{
struct amdgpu_device *adev = (struct amdgpu_device *)reset_ctl->handle;
struct list_head *reset_device_list = reset_context->reset_device_list;
struct amdgpu_device *tmp_adev = NULL;
struct list_head reset_device_list;
int r = 0;
dev_dbg(adev->dev, "aldebaran perform hw reset\n");
if (reset_device_list == NULL)
return -EINVAL;
if (adev->ip_versions[MP1_HWIP][0] == IP_VERSION(13, 0, 2) &&
reset_context->hive == NULL) {
/* Wrong context, return error */
return -EINVAL;
}
INIT_LIST_HEAD(&reset_device_list);
if (reset_context->hive) {
list_for_each_entry (tmp_adev,
&reset_context->hive->device_list,
gmc.xgmi.head)
list_add_tail(&tmp_adev->reset_list,
&reset_device_list);
} else {
list_add_tail(&reset_context->reset_req_dev->reset_list,
&reset_device_list);
}
list_for_each_entry (tmp_adev, &reset_device_list, reset_list) {
list_for_each_entry(tmp_adev, reset_device_list, reset_list) {
mutex_lock(&tmp_adev->reset_cntl->reset_lock);
tmp_adev->reset_cntl->active_reset = AMD_RESET_METHOD_MODE2;
}
@ -179,7 +171,7 @@ aldebaran_mode2_perform_reset(struct amdgpu_reset_control *reset_ctl,
* Mode2 reset doesn't need any sync between nodes in XGMI hive, instead launch
* them together so that they can be completed asynchronously on multiple nodes
*/
list_for_each_entry (tmp_adev, &reset_device_list, reset_list) {
list_for_each_entry(tmp_adev, reset_device_list, reset_list) {
/* For XGMI run all resets in parallel to speed up the process */
if (tmp_adev->gmc.xgmi.num_physical_nodes > 1) {
if (!queue_work(system_unbound_wq,
@ -197,7 +189,7 @@ aldebaran_mode2_perform_reset(struct amdgpu_reset_control *reset_ctl,
/* For XGMI wait for all resets to complete before proceed */
if (!r) {
list_for_each_entry (tmp_adev, &reset_device_list, reset_list) {
list_for_each_entry(tmp_adev, reset_device_list, reset_list) {
if (tmp_adev->gmc.xgmi.num_physical_nodes > 1) {
flush_work(&tmp_adev->reset_cntl->reset_work);
r = tmp_adev->asic_reset_res;
@ -207,7 +199,7 @@ aldebaran_mode2_perform_reset(struct amdgpu_reset_control *reset_ctl,
}
}
list_for_each_entry (tmp_adev, &reset_device_list, reset_list) {
list_for_each_entry(tmp_adev, reset_device_list, reset_list) {
mutex_unlock(&tmp_adev->reset_cntl->reset_lock);
tmp_adev->reset_cntl->active_reset = AMD_RESET_METHOD_NONE;
}
@ -339,10 +331,13 @@ static int
aldebaran_mode2_restore_hwcontext(struct amdgpu_reset_control *reset_ctl,
struct amdgpu_reset_context *reset_context)
{
struct list_head *reset_device_list = reset_context->reset_device_list;
struct amdgpu_device *tmp_adev = NULL;
struct list_head reset_device_list;
int r;
if (reset_device_list == NULL)
return -EINVAL;
if (reset_context->reset_req_dev->ip_versions[MP1_HWIP][0] ==
IP_VERSION(13, 0, 2) &&
reset_context->hive == NULL) {
@ -350,19 +345,7 @@ aldebaran_mode2_restore_hwcontext(struct amdgpu_reset_control *reset_ctl,
return -EINVAL;
}
INIT_LIST_HEAD(&reset_device_list);
if (reset_context->hive) {
list_for_each_entry (tmp_adev,
&reset_context->hive->device_list,
gmc.xgmi.head)
list_add_tail(&tmp_adev->reset_list,
&reset_device_list);
} else {
list_add_tail(&reset_context->reset_req_dev->reset_list,
&reset_device_list);
}
list_for_each_entry (tmp_adev, &reset_device_list, reset_list) {
list_for_each_entry(tmp_adev, reset_device_list, reset_list) {
dev_info(tmp_adev->dev,
"GPU reset succeeded, trying to resume\n");
r = aldebaran_mode2_restore_ip(tmp_adev);

2
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View file

@ -4742,6 +4742,8 @@ int amdgpu_do_asic_reset(struct list_head *device_list_handle,
tmp_adev = list_first_entry(device_list_handle, struct amdgpu_device,
reset_list);
amdgpu_reset_reg_dumps(tmp_adev);
reset_context->reset_device_list = device_list_handle;
r = amdgpu_reset_perform_reset(tmp_adev, reset_context);
/* If reset handler not implemented, continue; otherwise return */
if (r == -ENOSYS)

1
drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
View file

@ -37,6 +37,7 @@ struct amdgpu_reset_context {
struct amdgpu_device *reset_req_dev;
struct amdgpu_job *job;
struct amdgpu_hive_info *hive;
struct list_head *reset_device_list;
unsigned long flags;
};