1 /****************************************************************************
2  ****************************************************************************
3  ***
4  ***   This header was automatically generated from a Linux kernel header
5  ***   of the same name, to make information necessary for userspace to
6  ***   call into the kernel available to libc.  It contains only constants,
7  ***   structures, and macros generated from the original header, and thus,
8  ***   contains no copyrightable information.
9  ***
10  ***   To edit the content of this header, modify the corresponding
11  ***   source file (e.g. under external/kernel-headers/original/) then
12  ***   run bionic/libc/kernel/tools/update_all.py
13  ***
14  ***   Any manual change here will be lost the next time this script will
15  ***   be run. You've been warned!
16  ***
17  ****************************************************************************
18  ****************************************************************************/
19 #ifndef _UAPI_IOMMU_H
20 #define _UAPI_IOMMU_H
21 #include <linux/types.h>
22 #define IOMMU_FAULT_PERM_READ (1 << 0)
23 #define IOMMU_FAULT_PERM_WRITE (1 << 1)
24 #define IOMMU_FAULT_PERM_EXEC (1 << 2)
25 #define IOMMU_FAULT_PERM_PRIV (1 << 3)
26 enum iommu_fault_type {
27   IOMMU_FAULT_DMA_UNRECOV = 1,
28   IOMMU_FAULT_PAGE_REQ,
29 };
30 enum iommu_fault_reason {
31   IOMMU_FAULT_REASON_UNKNOWN = 0,
32   IOMMU_FAULT_REASON_PASID_FETCH,
33   IOMMU_FAULT_REASON_BAD_PASID_ENTRY,
34   IOMMU_FAULT_REASON_PASID_INVALID,
35   IOMMU_FAULT_REASON_WALK_EABT,
36   IOMMU_FAULT_REASON_PTE_FETCH,
37   IOMMU_FAULT_REASON_PERMISSION,
38   IOMMU_FAULT_REASON_ACCESS,
39   IOMMU_FAULT_REASON_OOR_ADDRESS,
40 };
41 struct iommu_fault_unrecoverable {
42   __u32 reason;
43 #define IOMMU_FAULT_UNRECOV_PASID_VALID (1 << 0)
44 #define IOMMU_FAULT_UNRECOV_ADDR_VALID (1 << 1)
45 #define IOMMU_FAULT_UNRECOV_FETCH_ADDR_VALID (1 << 2)
46   __u32 flags;
47   __u32 pasid;
48   __u32 perm;
49   __u64 addr;
50   __u64 fetch_addr;
51 };
52 struct iommu_fault_page_request {
53 #define IOMMU_FAULT_PAGE_REQUEST_PASID_VALID (1 << 0)
54 #define IOMMU_FAULT_PAGE_REQUEST_LAST_PAGE (1 << 1)
55 #define IOMMU_FAULT_PAGE_REQUEST_PRIV_DATA (1 << 2)
56 #define IOMMU_FAULT_PAGE_RESPONSE_NEEDS_PASID (1 << 3)
57   __u32 flags;
58   __u32 pasid;
59   __u32 grpid;
60   __u32 perm;
61   __u64 addr;
62   __u64 private_data[2];
63 };
64 struct iommu_fault {
65   __u32 type;
66   __u32 padding;
67   union {
68     struct iommu_fault_unrecoverable event;
69     struct iommu_fault_page_request prm;
70     __u8 padding2[56];
71   };
72 };
73 enum iommu_page_response_code {
74   IOMMU_PAGE_RESP_SUCCESS = 0,
75   IOMMU_PAGE_RESP_INVALID,
76   IOMMU_PAGE_RESP_FAILURE,
77 };
78 struct iommu_page_response {
79   __u32 argsz;
80 #define IOMMU_PAGE_RESP_VERSION_1 1
81   __u32 version;
82 #define IOMMU_PAGE_RESP_PASID_VALID (1 << 0)
83   __u32 flags;
84   __u32 pasid;
85   __u32 grpid;
86   __u32 code;
87 };
88 enum iommu_inv_granularity {
89   IOMMU_INV_GRANU_DOMAIN,
90   IOMMU_INV_GRANU_PASID,
91   IOMMU_INV_GRANU_ADDR,
92   IOMMU_INV_GRANU_NR,
93 };
94 struct iommu_inv_addr_info {
95 #define IOMMU_INV_ADDR_FLAGS_PASID (1 << 0)
96 #define IOMMU_INV_ADDR_FLAGS_ARCHID (1 << 1)
97 #define IOMMU_INV_ADDR_FLAGS_LEAF (1 << 2)
98   __u32 flags;
99   __u32 archid;
100   __u64 pasid;
101   __u64 addr;
102   __u64 granule_size;
103   __u64 nb_granules;
104 };
105 struct iommu_inv_pasid_info {
106 #define IOMMU_INV_PASID_FLAGS_PASID (1 << 0)
107 #define IOMMU_INV_PASID_FLAGS_ARCHID (1 << 1)
108   __u32 flags;
109   __u32 archid;
110   __u64 pasid;
111 };
112 struct iommu_cache_invalidate_info {
113   __u32 argsz;
114 #define IOMMU_CACHE_INVALIDATE_INFO_VERSION_1 1
115   __u32 version;
116 #define IOMMU_CACHE_INV_TYPE_IOTLB (1 << 0)
117 #define IOMMU_CACHE_INV_TYPE_DEV_IOTLB (1 << 1)
118 #define IOMMU_CACHE_INV_TYPE_PASID (1 << 2)
119 #define IOMMU_CACHE_INV_TYPE_NR (3)
120   __u8 cache;
121   __u8 granularity;
122   __u8 padding[6];
123   union {
124     struct iommu_inv_pasid_info pasid_info;
125     struct iommu_inv_addr_info addr_info;
126   } granu;
127 };
128 struct iommu_gpasid_bind_data_vtd {
129 #define IOMMU_SVA_VTD_GPASID_SRE (1 << 0)
130 #define IOMMU_SVA_VTD_GPASID_EAFE (1 << 1)
131 #define IOMMU_SVA_VTD_GPASID_PCD (1 << 2)
132 #define IOMMU_SVA_VTD_GPASID_PWT (1 << 3)
133 #define IOMMU_SVA_VTD_GPASID_EMTE (1 << 4)
134 #define IOMMU_SVA_VTD_GPASID_CD (1 << 5)
135 #define IOMMU_SVA_VTD_GPASID_LAST (1 << 6)
136   __u64 flags;
137   __u32 pat;
138   __u32 emt;
139 };
140 #define IOMMU_SVA_VTD_GPASID_MTS_MASK (IOMMU_SVA_VTD_GPASID_CD | IOMMU_SVA_VTD_GPASID_EMTE | IOMMU_SVA_VTD_GPASID_PCD | IOMMU_SVA_VTD_GPASID_PWT)
141 struct iommu_gpasid_bind_data {
142   __u32 argsz;
143 #define IOMMU_GPASID_BIND_VERSION_1 1
144   __u32 version;
145 #define IOMMU_PASID_FORMAT_INTEL_VTD 1
146 #define IOMMU_PASID_FORMAT_LAST 2
147   __u32 format;
148   __u32 addr_width;
149 #define IOMMU_SVA_GPASID_VAL (1 << 0)
150   __u64 flags;
151   __u64 gpgd;
152   __u64 hpasid;
153   __u64 gpasid;
154   __u8 padding[8];
155   union {
156     struct iommu_gpasid_bind_data_vtd vtd;
157   } vendor;
158 };
159 #endif
160