1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _LINUX_SUSPEND_IOCTLS_H
3 #define _LINUX_SUSPEND_IOCTLS_H
4 
5 #include <linux/types.h>
6 /*
7  * This structure is used to pass the values needed for the identification
8  * of the resume swap area from a user space to the kernel via the
9  * SNAPSHOT_SET_SWAP_AREA ioctl
10  */
11 struct resume_swap_area {
12 	__kernel_loff_t offset;
13 	__u32 dev;
14 } __attribute__((packed));
15 
16 #define SNAPSHOT_IOC_MAGIC	'3'
17 #define SNAPSHOT_FREEZE			_IO(SNAPSHOT_IOC_MAGIC, 1)
18 #define SNAPSHOT_UNFREEZE		_IO(SNAPSHOT_IOC_MAGIC, 2)
19 #define SNAPSHOT_ATOMIC_RESTORE		_IO(SNAPSHOT_IOC_MAGIC, 4)
20 #define SNAPSHOT_FREE			_IO(SNAPSHOT_IOC_MAGIC, 5)
21 #define SNAPSHOT_FREE_SWAP_PAGES	_IO(SNAPSHOT_IOC_MAGIC, 9)
22 #define SNAPSHOT_S2RAM			_IO(SNAPSHOT_IOC_MAGIC, 11)
23 #define SNAPSHOT_SET_SWAP_AREA		_IOW(SNAPSHOT_IOC_MAGIC, 13, \
24 							struct resume_swap_area)
25 #define SNAPSHOT_GET_IMAGE_SIZE		_IOR(SNAPSHOT_IOC_MAGIC, 14, __kernel_loff_t)
26 #define SNAPSHOT_PLATFORM_SUPPORT	_IO(SNAPSHOT_IOC_MAGIC, 15)
27 #define SNAPSHOT_POWER_OFF		_IO(SNAPSHOT_IOC_MAGIC, 16)
28 #define SNAPSHOT_CREATE_IMAGE		_IOW(SNAPSHOT_IOC_MAGIC, 17, int)
29 #define SNAPSHOT_PREF_IMAGE_SIZE	_IO(SNAPSHOT_IOC_MAGIC, 18)
30 #define SNAPSHOT_AVAIL_SWAP_SIZE	_IOR(SNAPSHOT_IOC_MAGIC, 19, __kernel_loff_t)
31 #define SNAPSHOT_ALLOC_SWAP_PAGE	_IOR(SNAPSHOT_IOC_MAGIC, 20, __kernel_loff_t)
32 #define SNAPSHOT_IOC_MAXNR	20
33 
34 #endif /* _LINUX_SUSPEND_IOCTLS_H */
35