1/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
2/*
3 * IOCTLs for Remoteproc's character device interface.
4 *
5 * Copyright (c) 2020, The Linux Foundation. All rights reserved.
6 */
7
8#ifndef _UAPI_REMOTEPROC_CDEV_H_
9#define _UAPI_REMOTEPROC_CDEV_H_
10
11#include <linux/ioctl.h>
12#include <linux/types.h>
13
14#define RPROC_MAGIC	0xB7
15
16/*
17 * The RPROC_SET_SHUTDOWN_ON_RELEASE ioctl allows to enable/disable the shutdown of a remote
18 * processor automatically when the controlling userpsace closes the char device interface.
19 *
20 * input parameter: integer
21 *   0		: disable automatic shutdown
22 *   other	: enable automatic shutdown
23 */
24#define RPROC_SET_SHUTDOWN_ON_RELEASE _IOW(RPROC_MAGIC, 1, __s32)
25
26/*
27 * The RPROC_GET_SHUTDOWN_ON_RELEASE ioctl gets information about whether the automatic shutdown of
28 * a remote processor is enabled or disabled when the controlling userspace closes the char device
29 * interface.
30 *
31 * output parameter: integer
32 *   0		: automatic shutdown disable
33 *   other	: automatic shutdown enable
34 */
35#define RPROC_GET_SHUTDOWN_ON_RELEASE _IOR(RPROC_MAGIC, 2, __s32)
36
37#endif
38