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       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 _REMOTEPROC_CDEV_H_
       9  #define _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