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