1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef _LINUX_TYPES_H |
3 | #define _LINUX_TYPES_H |
4 | |
5 | #define |
6 | #include <uapi/linux/types.h> |
7 | |
8 | #ifndef __ASSEMBLY__ |
9 | |
10 | #define DECLARE_BITMAP(name,bits) \ |
11 | unsigned long name[BITS_TO_LONGS(bits)] |
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_ulong_t ino_t; |
18 | typedef __kernel_mode_t mode_t; |
19 | typedef unsigned short umode_t; |
20 | typedef u32 nlink_t; |
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 | |
30 | typedef _Bool bool; |
31 | |
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 | |
37 | typedef unsigned long uintptr_t; |
38 | |
39 | #ifdef CONFIG_HAVE_UID16 |
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 | |
45 | #if defined(__GNUC__) |
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 _CLOCK_T |
69 | #define _CLOCK_T |
70 | typedef __kernel_clock_t clock_t; |
71 | #endif |
72 | |
73 | #ifndef _CADDR_T |
74 | #define _CADDR_T |
75 | typedef __kernel_caddr_t caddr_t; |
76 | #endif |
77 | |
78 | /* bsd */ |
79 | typedef unsigned char u_char; |
80 | typedef unsigned short u_short; |
81 | typedef unsigned int u_int; |
82 | typedef unsigned long u_long; |
83 | |
84 | /* sysv */ |
85 | typedef unsigned char unchar; |
86 | typedef unsigned short ushort; |
87 | typedef unsigned int uint; |
88 | typedef unsigned long ulong; |
89 | |
90 | #ifndef __BIT_TYPES_DEFINED__ |
91 | #define __BIT_TYPES_DEFINED__ |
92 | |
93 | typedef u8 u_int8_t; |
94 | typedef s8 int8_t; |
95 | typedef u16 u_int16_t; |
96 | typedef s16 int16_t; |
97 | typedef u32 u_int32_t; |
98 | typedef s32 int32_t; |
99 | |
100 | #endif /* !(__BIT_TYPES_DEFINED__) */ |
101 | |
102 | typedef u8 uint8_t; |
103 | typedef u16 uint16_t; |
104 | typedef u32 uint32_t; |
105 | |
106 | #if defined(__GNUC__) |
107 | typedef u64 uint64_t; |
108 | typedef u64 u_int64_t; |
109 | typedef s64 int64_t; |
110 | #endif |
111 | |
112 | /* this is a special 64bit data type that is 8-byte aligned */ |
113 | #define aligned_u64 __aligned_u64 |
114 | #define aligned_be64 __aligned_be64 |
115 | #define aligned_le64 __aligned_le64 |
116 | |
117 | /** |
118 | * The type used for indexing onto a disc or disc partition. |
119 | * |
120 | * Linux always considers sectors to be 512 bytes long independently |
121 | * of the devices real block size. |
122 | * |
123 | * blkcnt_t is the type of the inode's block count. |
124 | */ |
125 | typedef u64 sector_t; |
126 | typedef u64 blkcnt_t; |
127 | |
128 | /* |
129 | * The type of an index into the pagecache. |
130 | */ |
131 | #define pgoff_t unsigned long |
132 | |
133 | /* |
134 | * A dma_addr_t can hold any valid DMA address, i.e., any address returned |
135 | * by the DMA API. |
136 | * |
137 | * If the DMA API only uses 32-bit addresses, dma_addr_t need only be 32 |
138 | * bits wide. Bus addresses, e.g., PCI BARs, may be wider than 32 bits, |
139 | * but drivers do memory-mapped I/O to ioremapped kernel virtual addresses, |
140 | * so they don't care about the size of the actual bus addresses. |
141 | */ |
142 | #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT |
143 | typedef u64 dma_addr_t; |
144 | #else |
145 | typedef u32 dma_addr_t; |
146 | #endif |
147 | |
148 | typedef unsigned int __bitwise gfp_t; |
149 | typedef unsigned int __bitwise slab_flags_t; |
150 | typedef unsigned int __bitwise fmode_t; |
151 | |
152 | #ifdef CONFIG_PHYS_ADDR_T_64BIT |
153 | typedef u64 phys_addr_t; |
154 | #else |
155 | typedef u32 phys_addr_t; |
156 | #endif |
157 | |
158 | typedef phys_addr_t resource_size_t; |
159 | |
160 | /* |
161 | * This type is the placeholder for a hardware interrupt number. It has to be |
162 | * big enough to enclose whatever representation is used by a given platform. |
163 | */ |
164 | typedef unsigned long irq_hw_number_t; |
165 | |
166 | typedef struct { |
167 | int counter; |
168 | } atomic_t; |
169 | |
170 | #define ATOMIC_INIT(i) { (i) } |
171 | |
172 | #ifdef CONFIG_64BIT |
173 | typedef struct { |
174 | s64 counter; |
175 | } atomic64_t; |
176 | #endif |
177 | |
178 | struct list_head { |
179 | struct list_head *next, *prev; |
180 | }; |
181 | |
182 | struct hlist_head { |
183 | struct hlist_node *first; |
184 | }; |
185 | |
186 | struct hlist_node { |
187 | struct hlist_node *next, **pprev; |
188 | }; |
189 | |
190 | struct ustat { |
191 | __kernel_daddr_t f_tfree; |
192 | #ifdef CONFIG_ARCH_32BIT_USTAT_F_TINODE |
193 | unsigned int f_tinode; |
194 | #else |
195 | unsigned long f_tinode; |
196 | #endif |
197 | char f_fname[6]; |
198 | char f_fpack[6]; |
199 | }; |
200 | |
201 | /** |
202 | * struct callback_head - callback structure for use with RCU and task_work |
203 | * @next: next update requests in a list |
204 | * @func: actual update function to call after the grace period. |
205 | * |
206 | * The struct is aligned to size of pointer. On most architectures it happens |
207 | * naturally due ABI requirements, but some architectures (like CRIS) have |
208 | * weird ABI and we need to ask it explicitly. |
209 | * |
210 | * The alignment is required to guarantee that bit 0 of @next will be |
211 | * clear under normal conditions -- as long as we use call_rcu() or |
212 | * call_srcu() to queue the callback. |
213 | * |
214 | * This guarantee is important for few reasons: |
215 | * - future call_rcu_lazy() will make use of lower bits in the pointer; |
216 | * - the structure shares storage space in struct page with @compound_head, |
217 | * which encode PageTail() in bit 0. The guarantee is needed to avoid |
218 | * false-positive PageTail(). |
219 | */ |
220 | struct callback_head { |
221 | struct callback_head *next; |
222 | void (*func)(struct callback_head *head); |
223 | } __attribute__((aligned(sizeof(void *)))); |
224 | #define rcu_head callback_head |
225 | |
226 | typedef void (*rcu_callback_t)(struct rcu_head *head); |
227 | typedef void (*call_rcu_func_t)(struct rcu_head *head, rcu_callback_t func); |
228 | |
229 | typedef void (*swap_r_func_t)(void *a, void *b, int size, const void *priv); |
230 | typedef void (*swap_func_t)(void *a, void *b, int size); |
231 | |
232 | typedef int (*cmp_r_func_t)(const void *a, const void *b, const void *priv); |
233 | typedef int (*cmp_func_t)(const void *a, const void *b); |
234 | |
235 | #endif /* __ASSEMBLY__ */ |
236 | #endif /* _LINUX_TYPES_H */ |
237 | |