diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/remoteproc.h | 5 | ||||
| -rw-r--r-- | include/uapi/linux/remoteproc_cdev.h | 37 |
2 files changed, 42 insertions, 0 deletions
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h index 0e8d2ff575b4..2fa68bf5aa4f 100644 --- a/include/linux/remoteproc.h +++ b/include/linux/remoteproc.h @@ -38,6 +38,7 @@ #include <linux/types.h> #include <linux/mutex.h> #include <linux/virtio.h> +#include <linux/cdev.h> #include <linux/completion.h> #include <linux/idr.h> #include <linux/of.h> @@ -509,6 +510,8 @@ struct rproc_dump_segment { * @autonomous: true if an external entity has booted the remote processor * @dump_segments: list of segments in the firmware * @nb_vdev: number of vdev currently handled by rproc + * @char_dev: character device of the rproc + * @cdev_put_on_release: flag to indicate if remoteproc should be shutdown on @char_dev release */ struct rproc { struct list_head node; @@ -546,6 +549,8 @@ struct rproc { int nb_vdev; u8 elf_class; u16 elf_machine; + struct cdev cdev; + bool cdev_put_on_release; }; /** diff --git a/include/uapi/linux/remoteproc_cdev.h b/include/uapi/linux/remoteproc_cdev.h new file mode 100644 index 000000000000..c43768e4b0dc --- /dev/null +++ b/include/uapi/linux/remoteproc_cdev.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */ +/* + * IOCTLs for Remoteproc's character device interface. + * + * Copyright (c) 2020, The Linux Foundation. All rights reserved. + */ + +#ifndef _UAPI_REMOTEPROC_CDEV_H_ +#define _UAPI_REMOTEPROC_CDEV_H_ + +#include <linux/ioctl.h> +#include <linux/types.h> + +#define RPROC_MAGIC 0xB7 + +/* + * The RPROC_SET_SHUTDOWN_ON_RELEASE ioctl allows to enable/disable the shutdown of a remote + * processor automatically when the controlling userpsace closes the char device interface. + * + * input parameter: integer + * 0 : disable automatic shutdown + * other : enable automatic shutdown + */ +#define RPROC_SET_SHUTDOWN_ON_RELEASE _IOW(RPROC_MAGIC, 1, __s32) + +/* + * The RPROC_GET_SHUTDOWN_ON_RELEASE ioctl gets information about whether the automatic shutdown of + * a remote processor is enabled or disabled when the controlling userspace closes the char device + * interface. + * + * output parameter: integer + * 0 : automatic shutdown disable + * other : automatic shutdown enable + */ +#define RPROC_GET_SHUTDOWN_ON_RELEASE _IOR(RPROC_MAGIC, 2, __s32) + +#endif |