Commit 063a38d6 authored by Jack Xiao's avatar Jack Xiao Committed by Alex Deucher
Browse files

drm/amdgpu/mes: implement destroying mes process 



Destroy the mes process, which free resources of the process.

Signed-off-by: default avatarJack Xiao <Jack.Xiao@amd.com>
Acked-by: default avatarChristian König <christian.koenig@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 48dcd2b7

drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c

+58 −0
Original line number Diff line number Diff line
@@ -291,3 +291,61 @@ int amdgpu_mes_create_process(struct amdgpu_device *adev, int pasid, 
	mutex_unlock(&adev->mes.mutex);

	return r;

}



void amdgpu_mes_destroy_process(struct amdgpu_device *adev, int pasid)

{

	struct amdgpu_mes_process *process;

	struct amdgpu_mes_gang *gang, *tmp1;

	struct amdgpu_mes_queue *queue, *tmp2;

	struct mes_remove_queue_input queue_input;

	unsigned long flags;

	int r;



	mutex_lock(&adev->mes.mutex);



	process = idr_find(&adev->mes.pasid_idr, pasid);

	if (!process) {

		DRM_WARN("pasid %d doesn't exist\n", pasid);

		mutex_unlock(&adev->mes.mutex);

		return;

	}



	/* free all gangs in the process */

	list_for_each_entry_safe(gang, tmp1, &process->gang_list, list) {

		/* free all queues in the gang */

		list_for_each_entry_safe(queue, tmp2, &gang->queue_list, list) {

			spin_lock_irqsave(&adev->mes.queue_id_lock, flags);

			idr_remove(&adev->mes.queue_id_idr, queue->queue_id);

			spin_unlock_irqrestore(&adev->mes.queue_id_lock, flags);



			queue_input.doorbell_offset = queue->doorbell_off;

			queue_input.gang_context_addr = gang->gang_ctx_gpu_addr;



			r = adev->mes.funcs->remove_hw_queue(&adev->mes,

							     &queue_input);

			if (r)

				DRM_WARN("failed to remove hardware queue\n");



			list_del(&queue->list);

			kfree(queue);

		}



		idr_remove(&adev->mes.gang_id_idr, gang->gang_id);

		amdgpu_bo_free_kernel(&gang->gang_ctx_bo,

				      &gang->gang_ctx_gpu_addr,

				      &gang->gang_ctx_cpu_ptr);

		list_del(&gang->list);

		kfree(gang);

	}



	amdgpu_mes_free_process_doorbells(adev, process);



	idr_remove(&adev->mes.pasid_idr, pasid);

	amdgpu_bo_free_kernel(&process->proc_ctx_bo,

			      &process->proc_ctx_gpu_addr,

			      &process->proc_ctx_cpu_ptr);

	kfree(process->doorbell_bitmap);

	kfree(process);



	mutex_unlock(&adev->mes.mutex);

}

drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h

+1 −0
Original line number Diff line number Diff line
@@ -216,5 +216,6 @@ void amdgpu_mes_fini(struct amdgpu_device *adev); 


int amdgpu_mes_create_process(struct amdgpu_device *adev, int pasid,

			      struct amdgpu_vm *vm);

void amdgpu_mes_destroy_process(struct amdgpu_device *adev, int pasid);



#endif /* __AMDGPU_MES_H__ */