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gerrit.omnirom.org / android_bionic / 12773b6ecad9970a29b60964b7780b19cb09da9f / . / libc / kernel / uapi / linux / vduse.h
blob: 934dab72306b1cb03f2141fd1bd3d18bf5cc8187 [file] [log] [blame]
Elliott Hughes180edef2023-11-02 00:08:05 +0000[diff] [blame]1/*
2 * This file is auto-generated. Modifications will be lost.
3 *
4 * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
5 * for more information.
6 */
Christopher Ferris2abfa9e2021-11-01 16:26:06 -0700[diff] [blame]7#ifndef _UAPI_VDUSE_H_
8#define _UAPI_VDUSE_H_
9#include <linux/types.h>
10#define VDUSE_BASE 0x81
11#define VDUSE_API_VERSION 0
12#define VDUSE_GET_API_VERSION _IOR(VDUSE_BASE, 0x00, __u64)
13#define VDUSE_SET_API_VERSION _IOW(VDUSE_BASE, 0x01, __u64)
14struct vduse_dev_config {
15#define VDUSE_NAME_MAX 256
16 char name[VDUSE_NAME_MAX];
17 __u32 vendor_id;
18 __u32 device_id;
19 __u64 features;
20 __u32 vq_num;
21 __u32 vq_align;
22 __u32 reserved[13];
23 __u32 config_size;
24 __u8 config[];
25};
26#define VDUSE_CREATE_DEV _IOW(VDUSE_BASE, 0x02, struct vduse_dev_config)
27#define VDUSE_DESTROY_DEV _IOW(VDUSE_BASE, 0x03, char[VDUSE_NAME_MAX])
28struct vduse_iotlb_entry {
29 __u64 offset;
30 __u64 start;
31 __u64 last;
32#define VDUSE_ACCESS_RO 0x1
33#define VDUSE_ACCESS_WO 0x2
34#define VDUSE_ACCESS_RW 0x3
35 __u8 perm;
36};
37#define VDUSE_IOTLB_GET_FD _IOWR(VDUSE_BASE, 0x10, struct vduse_iotlb_entry)
38#define VDUSE_DEV_GET_FEATURES _IOR(VDUSE_BASE, 0x11, __u64)
39struct vduse_config_data {
40 __u32 offset;
41 __u32 length;
42 __u8 buffer[];
43};
44#define VDUSE_DEV_SET_CONFIG _IOW(VDUSE_BASE, 0x12, struct vduse_config_data)
45#define VDUSE_DEV_INJECT_CONFIG_IRQ _IO(VDUSE_BASE, 0x13)
46struct vduse_vq_config {
47 __u32 index;
48 __u16 max_size;
49 __u16 reserved[13];
50};
51#define VDUSE_VQ_SETUP _IOW(VDUSE_BASE, 0x14, struct vduse_vq_config)
52struct vduse_vq_state_split {
53 __u16 avail_index;
54};
55struct vduse_vq_state_packed {
56 __u16 last_avail_counter;
57 __u16 last_avail_idx;
58 __u16 last_used_counter;
59 __u16 last_used_idx;
60};
61struct vduse_vq_info {
62 __u32 index;
63 __u32 num;
64 __u64 desc_addr;
65 __u64 driver_addr;
66 __u64 device_addr;
67 union {
68 struct vduse_vq_state_split split;
69 struct vduse_vq_state_packed packed;
70 };
71 __u8 ready;
72};
73#define VDUSE_VQ_GET_INFO _IOWR(VDUSE_BASE, 0x15, struct vduse_vq_info)
74struct vduse_vq_eventfd {
75 __u32 index;
76#define VDUSE_EVENTFD_DEASSIGN - 1
77 int fd;
78};
79#define VDUSE_VQ_SETUP_KICKFD _IOW(VDUSE_BASE, 0x16, struct vduse_vq_eventfd)
80#define VDUSE_VQ_INJECT_IRQ _IOW(VDUSE_BASE, 0x17, __u32)
Christopher Ferris7447a1c2022-10-04 18:24:44 -0700[diff] [blame]81struct vduse_iova_umem {
82 __u64 uaddr;
83 __u64 iova;
84 __u64 size;
85 __u64 reserved[3];
86};
87#define VDUSE_IOTLB_REG_UMEM _IOW(VDUSE_BASE, 0x18, struct vduse_iova_umem)
88#define VDUSE_IOTLB_DEREG_UMEM _IOW(VDUSE_BASE, 0x19, struct vduse_iova_umem)
89struct vduse_iova_info {
90 __u64 start;
91 __u64 last;
92#define VDUSE_IOVA_CAP_UMEM (1 << 0)
93 __u64 capability;
94 __u64 reserved[3];
95};
96#define VDUSE_IOTLB_GET_INFO _IOWR(VDUSE_BASE, 0x1a, struct vduse_iova_info)
Christopher Ferris2abfa9e2021-11-01 16:26:06 -0700[diff] [blame]97enum vduse_req_type {
98 VDUSE_GET_VQ_STATE,
99 VDUSE_SET_STATUS,
100 VDUSE_UPDATE_IOTLB,
101};
102struct vduse_vq_state {
103 __u32 index;
104 union {
105 struct vduse_vq_state_split split;
106 struct vduse_vq_state_packed packed;
107 };
108};
109struct vduse_dev_status {
110 __u8 status;
111};
112struct vduse_iova_range {
113 __u64 start;
114 __u64 last;
115};
116struct vduse_dev_request {
117 __u32 type;
118 __u32 request_id;
119 __u32 reserved[4];
120 union {
121 struct vduse_vq_state vq_state;
122 struct vduse_dev_status s;
123 struct vduse_iova_range iova;
124 __u32 padding[32];
125 };
126};
127struct vduse_dev_response {
128 __u32 request_id;
129#define VDUSE_REQ_RESULT_OK 0x00
130#define VDUSE_REQ_RESULT_FAILED 0x01
131 __u32 result;
132 __u32 reserved[4];
133 union {
134 struct vduse_vq_state vq_state;
135 __u32 padding[32];
136 };
137};
138#endif