1 #ifndef _LINUX_TYPES_H 2 #define _LINUX_TYPES_H 3 4 #define __EXPORTED_HEADERS__ 5 #include <uapi/linux/types.h> 6 7 #ifndef __ASSEMBLY__ 8 9 #define DECLARE_BITMAP(name,bits) \ 10 unsigned long name[BITS_TO_LONGS(bits)] 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; 18 typedef unsigned short umode_t; 19 typedef __u32 nlink_t; 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 29 typedef _Bool bool; 30 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 36 typedef unsigned long uintptr_t; 37 38 #ifdef CONFIG_HAVE_UID16 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 44 #if defined(__GNUC__) 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; 109 110 #if defined(__GNUC__) 111 typedef __u64 uint64_t; 112 typedef __u64 u_int64_t; 113 typedef __s64 int64_t; 114 #endif 115 116 /* this is a special 64bit data type that is 8-byte aligned */ 117 #define aligned_u64 __u64 __attribute__((aligned(8))) 118 #define aligned_be64 __be64 __attribute__((aligned(8))) 119 #define aligned_le64 __le64 __attribute__((aligned(8))) 120 121 /** 122 * The type used for indexing onto a disc or disc partition. 123 * 124 * Linux always considers sectors to be 512 bytes long independently 125 * of the devices real block size. 126 * 127 * blkcnt_t is the type of the inode's block count. 128 */ 129 #ifdef CONFIG_LBDAF 130 typedef u64 sector_t; 131 typedef u64 blkcnt_t; 132 #else 133 typedef unsigned long sector_t; 134 typedef unsigned long blkcnt_t; 135 #endif 136 137 /* 138 * The type of an index into the pagecache. 139 */ 140 #define pgoff_t unsigned long 141 142 /* 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 */ 151 #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT 152 typedef u64 dma_addr_t; 153 #else 154 typedef u32 dma_addr_t; 155 #endif 156 157 typedef unsigned __bitwise__ gfp_t; 158 typedef unsigned __bitwise__ fmode_t; 159 typedef unsigned __bitwise__ oom_flags_t; 160 161 #ifdef CONFIG_PHYS_ADDR_T_64BIT 162 typedef u64 phys_addr_t; 163 #else 164 typedef u32 phys_addr_t; 165 #endif 166 167 typedef phys_addr_t resource_size_t; 168 169 /* 170 * This type is the placeholder for a hardware interrupt number. It has to be 171 * big enough to enclose whatever representation is used by a given platform. 172 */ 173 typedef unsigned long irq_hw_number_t; 174 175 typedef struct { 176 int counter; 177 } atomic_t; 178 179 #ifdef CONFIG_64BIT 180 typedef struct { 181 long counter; 182 } atomic64_t; 183 #endif 184 185 struct list_head { 186 struct list_head *next, *prev; 187 }; 188 189 struct hlist_head { 190 struct hlist_node *first; 191 }; 192 193 struct hlist_node { 194 struct hlist_node *next, **pprev; 195 }; 196 197 struct ustat { 198 __kernel_daddr_t f_tfree; 199 __kernel_ino_t f_tinode; 200 char f_fname[6]; 201 char f_fpack[6]; 202 }; 203 204 /** 205 * struct callback_head - callback structure for use with RCU and task_work 206 * @next: next update requests in a list 207 * @func: actual update function to call after the grace period. 208 * 209 * The struct is aligned to size of pointer. On most architectures it happens 210 * naturally due ABI requirements, but some architectures (like CRIS) have 211 * weird ABI and we need to ask it explicitly. 212 * 213 * The alignment is required to guarantee that bits 0 and 1 of @next will be 214 * clear under normal conditions -- as long as we use call_rcu(), 215 * call_rcu_bh(), call_rcu_sched(), or call_srcu() to queue callback. 216 * 217 * This guarantee is important for few reasons: 218 * - future call_rcu_lazy() will make use of lower bits in the pointer; 219 * - the structure shares storage spacer in struct page with @compound_head, 220 * which encode PageTail() in bit 0. The guarantee is needed to avoid 221 * false-positive PageTail(). 222 */ 223 struct callback_head { 224 struct callback_head *next; 225 void (*func)(struct callback_head *head); 226 } __attribute__((aligned(sizeof(void *)))); 227 #define rcu_head callback_head 228 229 typedef void (*rcu_callback_t)(struct rcu_head *head); 230 typedef void (*call_rcu_func_t)(struct rcu_head *head, rcu_callback_t func); 231 232 /* clocksource cycle base type */ 233 typedef u64 cycle_t; 234 235 #endif /* __ASSEMBLY__ */ 236 #endif /* _LINUX_TYPES_H */ 237