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Index of /anon_sym/anon/proc/thread-self/root/sys/module/battery
Index of /anon_sym/anon/proc/thread-self/root/sys/module/battery
&P /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _VDUSE_H_
#define _VDUSE_H_
#include
#define VDUSE_BASE 0x81
/* The ioctls for control device (/dev/vduse/control) */
#define VDUSE_API_VERSION 0
/*
* Get the version of VDUSE API that kernel supported (VDUSE_API_VERSION).
* This is used for future extension.
*/
#define VDUSE_GET_API_VERSION _IOR(VDUSE_BASE, 0x00, __u64)
/* Set the version of VDUSE API that userspace supported. */
#define VDUSE_SET_API_VERSION _IOW(VDUSE_BASE, 0x01, __u64)
/**
* struct vduse_dev_config - basic configuration of a VDUSE device
* @name: VDUSE device name, needs to be NUL terminated
* @vendor_id: virtio vendor id
* @device_id: virtio device id
* @features: virtio features
* @vq_num: the number of virtqueues
* @vq_align: the allocation alignment of virtqueue's metadata
* @reserved: for future use, needs to be initialized to zero
* @config_size: the size of the configuration space
* @config: the buffer of the configuration space
*
* Structure used by VDUSE_CREATE_DEV ioctl to create VDUSE device.
*/
struct vduse_dev_config {
#define VDUSE_NAME_MAX 256
char name[VDUSE_NAME_MAX];
__u32 vendor_id;
__u32 device_id;
__u64 features;
__u32 vq_num;
__u32 vq_align;
__u32 reserved[13];
__u32 config_size;
__u8 config[];
};
/* Create a VDUSE device which is represented by a char device (/dev/vduse/$NAME) */
#define VDUSE_CREATE_DEV _IOW(VDUSE_BASE, 0x02, struct vduse_dev_config)
/*
* Destroy a VDUSE device. Make sure there are no more references
* to the char device (/dev/vduse/$NAME).
*/
#define VDUSE_DESTROY_DEV _IOW(VDUSE_BASE, 0x03, char[VDUSE_NAME_MAX])
/* The ioctls for VDUSE device (/dev/vduse/$NAME) */
/**
* struct vduse_iotlb_entry - entry of IOTLB to describe one IOVA region [start, last]
* @offset: the mmap offset on returned file descriptor
* @start: start of the IOVA region
* @last: last of the IOVA region
* @perm: access permission of the IOVA region
*
* Structure used by VDUSE_IOTLB_GET_FD ioctl to find an overlapped IOVA region.
*/
struct vduse_iotlb_entry {
__u64 offset;
__u64 start;
__u64 last;
#define VDUSE_ACCESS_RO 0x1
#define VDUSE_ACCESS_WO 0x2
#define VDUSE_ACCESS_RW 0x3
__u8 perm;
};
/*
* Find the first IOVA region that overlaps with the range [start, last]
* and return the corresponding file descriptor. Return -EINVAL means the
* IOVA region doesn't exist. Caller should set start and last fields.
*/
#define VDUSE_IOTLB_GET_FD _IOWR(VDUSE_BASE, 0x10, struct vduse_iotlb_entry)
/*
* Get the negotiated virtio features. It's a subset of the features in
* struct vduse_dev_config which can be accepted by virtio driver. It's
* only valid after FEATURES_OK status bit is set.
*/
#define VDUSE_DEV_GET_FEATURES _IOR(VDUSE_BASE, 0x11, __u64)
/**
* struct vduse_config