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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef _LINUX_TYPES_H |
3 | #define _LINUX_TYPES_H | |
4 | ||
607ca46e DH |
5 | #define __EXPORTED_HEADERS__ |
6 | #include <uapi/linux/types.h> | |
9d50638b | 7 | |
527bdfee | 8 | #ifndef __ASSEMBLY__ |
1da177e4 | 9 | |
1da177e4 LT |
10 | #define DECLARE_BITMAP(name,bits) \ |
11 | unsigned long name[BITS_TO_LONGS(bits)] | |
1da177e4 LT |
12 | |
13 | typedef __u32 __kernel_dev_t; | |
14 | ||
15 | typedef __kernel_fd_set fd_set; | |
16 | typedef __kernel_dev_t dev_t; | |
17 | typedef __kernel_ino_t ino_t; | |
18 | typedef __kernel_mode_t mode_t; | |
0583fcc9 | 19 | typedef unsigned short umode_t; |
bb8ac181 | 20 | typedef __u32 nlink_t; |
1da177e4 LT |
21 | typedef __kernel_off_t off_t; |
22 | typedef __kernel_pid_t pid_t; | |
23 | typedef __kernel_daddr_t daddr_t; | |
24 | typedef __kernel_key_t key_t; | |
25 | typedef __kernel_suseconds_t suseconds_t; | |
26 | typedef __kernel_timer_t timer_t; | |
27 | typedef __kernel_clockid_t clockid_t; | |
28 | typedef __kernel_mqd_t mqd_t; | |
29 | ||
6e218287 RK |
30 | typedef _Bool bool; |
31 | ||
1da177e4 LT |
32 | typedef __kernel_uid32_t uid_t; |
33 | typedef __kernel_gid32_t gid_t; | |
34 | typedef __kernel_uid16_t uid16_t; | |
35 | typedef __kernel_gid16_t gid16_t; | |
36 | ||
142956af AV |
37 | typedef unsigned long uintptr_t; |
38 | ||
fbc416ff | 39 | #ifdef CONFIG_HAVE_UID16 |
1da177e4 LT |
40 | /* This is defined by include/asm-{arch}/posix_types.h */ |
41 | typedef __kernel_old_uid_t old_uid_t; | |
42 | typedef __kernel_old_gid_t old_gid_t; | |
43 | #endif /* CONFIG_UID16 */ | |
44 | ||
7437a51b | 45 | #if defined(__GNUC__) |
1da177e4 LT |
46 | typedef __kernel_loff_t loff_t; |
47 | #endif | |
48 | ||
49 | /* | |
50 | * The following typedefs are also protected by individual ifdefs for | |
51 | * historical reasons: | |
52 | */ | |
53 | #ifndef _SIZE_T | |
54 | #define _SIZE_T | |
55 | typedef __kernel_size_t size_t; | |
56 | #endif | |
57 | ||
58 | #ifndef _SSIZE_T | |
59 | #define _SSIZE_T | |
60 | typedef __kernel_ssize_t ssize_t; | |
61 | #endif | |
62 | ||
63 | #ifndef _PTRDIFF_T | |
64 | #define _PTRDIFF_T | |
65 | typedef __kernel_ptrdiff_t ptrdiff_t; | |
66 | #endif | |
67 | ||
68 | #ifndef _TIME_T | |
69 | #define _TIME_T | |
70 | typedef __kernel_time_t time_t; | |
71 | #endif | |
72 | ||
73 | #ifndef _CLOCK_T | |
74 | #define _CLOCK_T | |
75 | typedef __kernel_clock_t clock_t; | |
76 | #endif | |
77 | ||
78 | #ifndef _CADDR_T | |
79 | #define _CADDR_T | |
80 | typedef __kernel_caddr_t caddr_t; | |
81 | #endif | |
82 | ||
83 | /* bsd */ | |
84 | typedef unsigned char u_char; | |
85 | typedef unsigned short u_short; | |
86 | typedef unsigned int u_int; | |
87 | typedef unsigned long u_long; | |
88 | ||
89 | /* sysv */ | |
90 | typedef unsigned char unchar; | |
91 | typedef unsigned short ushort; | |
92 | typedef unsigned int uint; | |
93 | typedef unsigned long ulong; | |
94 | ||
95 | #ifndef __BIT_TYPES_DEFINED__ | |
96 | #define __BIT_TYPES_DEFINED__ | |
97 | ||
98 | typedef __u8 u_int8_t; | |
99 | typedef __s8 int8_t; | |
100 | typedef __u16 u_int16_t; | |
101 | typedef __s16 int16_t; | |
102 | typedef __u32 u_int32_t; | |
103 | typedef __s32 int32_t; | |
104 | ||
105 | #endif /* !(__BIT_TYPES_DEFINED__) */ | |
106 | ||
107 | typedef __u8 uint8_t; | |
108 | typedef __u16 uint16_t; | |
109 | typedef __u32 uint32_t; | |
110 | ||
7437a51b | 111 | #if defined(__GNUC__) |
1da177e4 LT |
112 | typedef __u64 uint64_t; |
113 | typedef __u64 u_int64_t; | |
114 | typedef __s64 int64_t; | |
115 | #endif | |
116 | ||
a75d3776 | 117 | /* this is a special 64bit data type that is 8-byte aligned */ |
c82a5cb8 | 118 | #define aligned_u64 __u64 __attribute__((aligned(8))) |
98a4a861 AV |
119 | #define aligned_be64 __be64 __attribute__((aligned(8))) |
120 | #define aligned_le64 __le64 __attribute__((aligned(8))) | |
0ba2c6e8 | 121 | |
2c2345c2 | 122 | /** |
1da177e4 | 123 | * The type used for indexing onto a disc or disc partition. |
2c2345c2 RG |
124 | * |
125 | * Linux always considers sectors to be 512 bytes long independently | |
126 | * of the devices real block size. | |
b3a6ffe1 JA |
127 | * |
128 | * blkcnt_t is the type of the inode's block count. | |
1da177e4 | 129 | */ |
90c699a9 | 130 | #ifdef CONFIG_LBDAF |
e6243863 | 131 | typedef u64 sector_t; |
e6243863 MW |
132 | typedef u64 blkcnt_t; |
133 | #else | |
b3a6ffe1 | 134 | typedef unsigned long sector_t; |
a0f62ac6 TS |
135 | typedef unsigned long blkcnt_t; |
136 | #endif | |
137 | ||
1da177e4 | 138 | /* |
dd4a5c1e | 139 | * The type of an index into the pagecache. |
1da177e4 | 140 | */ |
1da177e4 | 141 | #define pgoff_t unsigned long |
1da177e4 | 142 | |
3a9ad0b4 YL |
143 | /* |
144 | * A dma_addr_t can hold any valid DMA address, i.e., any address returned | |
145 | * by the DMA API. | |
146 | * | |
147 | * If the DMA API only uses 32-bit addresses, dma_addr_t need only be 32 | |
148 | * bits wide. Bus addresses, e.g., PCI BARs, may be wider than 32 bits, | |
149 | * but drivers do memory-mapped I/O to ioremapped kernel virtual addresses, | |
150 | * so they don't care about the size of the actual bus addresses. | |
151 | */ | |
3e50594e FT |
152 | #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT |
153 | typedef u64 dma_addr_t; | |
154 | #else | |
155 | typedef u32 dma_addr_t; | |
3a9ad0b4 | 156 | #endif |
3e50594e | 157 | |
9efeccac | 158 | typedef unsigned __bitwise gfp_t; |
4fd0b46e | 159 | typedef unsigned __bitwise slab_flags_t; |
9efeccac | 160 | typedef unsigned __bitwise fmode_t; |
cf7c712c | 161 | |
600715dc JF |
162 | #ifdef CONFIG_PHYS_ADDR_T_64BIT |
163 | typedef u64 phys_addr_t; | |
164 | #else | |
165 | typedef u32 phys_addr_t; | |
166 | #endif | |
167 | ||
8308c54d JF |
168 | typedef phys_addr_t resource_size_t; |
169 | ||
a699e4e4 GL |
170 | /* |
171 | * This type is the placeholder for a hardware interrupt number. It has to be | |
172 | * big enough to enclose whatever representation is used by a given platform. | |
173 | */ | |
174 | typedef unsigned long irq_hw_number_t; | |
175 | ||
ea435467 | 176 | typedef struct { |
81880d60 | 177 | int counter; |
ea435467 MW |
178 | } atomic_t; |
179 | ||
180 | #ifdef CONFIG_64BIT | |
181 | typedef struct { | |
81880d60 | 182 | long counter; |
ea435467 MW |
183 | } atomic64_t; |
184 | #endif | |
185 | ||
de5d9bf6 CM |
186 | struct list_head { |
187 | struct list_head *next, *prev; | |
188 | }; | |
189 | ||
190 | struct hlist_head { | |
191 | struct hlist_node *first; | |
192 | }; | |
193 | ||
194 | struct hlist_node { | |
195 | struct hlist_node *next, **pprev; | |
196 | }; | |
197 | ||
1da177e4 LT |
198 | struct ustat { |
199 | __kernel_daddr_t f_tfree; | |
200 | __kernel_ino_t f_tinode; | |
201 | char f_fname[6]; | |
202 | char f_fpack[6]; | |
203 | }; | |
204 | ||
99098751 | 205 | /** |
67d12145 | 206 | * struct callback_head - callback structure for use with RCU and task_work |
99098751 PM |
207 | * @next: next update requests in a list |
208 | * @func: actual update function to call after the grace period. | |
720abae3 KS |
209 | * |
210 | * The struct is aligned to size of pointer. On most architectures it happens | |
211 | * naturally due ABI requirements, but some architectures (like CRIS) have | |
212 | * weird ABI and we need to ask it explicitly. | |
213 | * | |
468d01be | 214 | * The alignment is required to guarantee that bit 0 of @next will be |
720abae3 KS |
215 | * clear under normal conditions -- as long as we use call_rcu(), |
216 | * call_rcu_bh(), call_rcu_sched(), or call_srcu() to queue callback. | |
217 | * | |
218 | * This guarantee is important for few reasons: | |
219 | * - future call_rcu_lazy() will make use of lower bits in the pointer; | |
220 | * - the structure shares storage spacer in struct page with @compound_head, | |
221 | * which encode PageTail() in bit 0. The guarantee is needed to avoid | |
222 | * false-positive PageTail(). | |
99098751 | 223 | */ |
67d12145 AV |
224 | struct callback_head { |
225 | struct callback_head *next; | |
226 | void (*func)(struct callback_head *head); | |
720abae3 | 227 | } __attribute__((aligned(sizeof(void *)))); |
67d12145 | 228 | #define rcu_head callback_head |
99098751 | 229 | |
ec90a194 PM |
230 | typedef void (*rcu_callback_t)(struct rcu_head *head); |
231 | typedef void (*call_rcu_func_t)(struct rcu_head *head, rcu_callback_t func); | |
232 | ||
527bdfee | 233 | #endif /* __ASSEMBLY__ */ |
1da177e4 | 234 | #endif /* _LINUX_TYPES_H */ |