drm/amdkfd: Implement events IOCTLs

static int kfd_ioctl_create_event(struct file *filp, struct kfd_process *p,

					void *data)

{

	return -ENODEV;

	struct kfd_ioctl_create_event_args *args = data;

	int err;

	err = kfd_event_create(filp, p, args->event_type,

				args->auto_reset != 0, args->node_id,

				&args->event_id, &args->event_trigger_data,

				&args->event_page_offset,

				&args->event_slot_index);

	return err;

}

static int kfd_ioctl_destroy_event(struct file *filp, struct kfd_process *p,

					void *data)

{

	return -ENODEV;

	struct kfd_ioctl_destroy_event_args *args = data;

	return kfd_event_destroy(p, args->event_id);

}

static int kfd_ioctl_set_event(struct file *filp, struct kfd_process *p,

				void *data)

{

	return -ENODEV;

	struct kfd_ioctl_set_event_args *args = data;

	return kfd_set_event(p, args->event_id);

}

static int kfd_ioctl_reset_event(struct file *filp, struct kfd_process *p,

				void *data)

{

	return -ENODEV;

	struct kfd_ioctl_reset_event_args *args = data;

	return kfd_reset_event(p, args->event_id);

}

static int kfd_ioctl_wait_events(struct file *filp, struct kfd_process *p,

				void *data)

{

	return -ENODEV;

	struct kfd_ioctl_wait_events_args *args = data;

	enum kfd_event_wait_result wait_result;

	int err;

	err = kfd_wait_on_events(p, args->num_events,

			(void __user *)args->events_ptr,

			(args->wait_for_all != 0),

			args->timeout, &wait_result);

	args->wait_result = wait_result;

	return err;

}

#define AMDKFD_IOCTL_DEF(ioctl, _func, _flags) \