From: Lijo Lazar lijo.lazar@amd.com
[ Upstream commit 0a83bb35d8a6ff3d18c2772afe616780c23293a6 ]
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: 9e08564727fc (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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/aldebaran.c | 45 +++++++--------------- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 + drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h | 1 + 3 files changed, 17 insertions(+), 31 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/aldebaran.c b/drivers/gpu/drm/amd/amdgpu/aldebaran.c index c6cc493a5486..2b97b8a96fb4 100644 --- a/drivers/gpu/drm/amd/amdgpu/aldebaran.c +++ b/drivers/gpu/drm/amd/amdgpu/aldebaran.c @@ -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); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 58df107e3beb..3adebb63680e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -4746,6 +4746,8 @@ 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) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h index 1949dbe28a86..0c3ad85d84a4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h @@ -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; };