Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _LINUX_TYPES_H |
| 2 | #define _LINUX_TYPES_H |
| 3 | |
David Howells | 607ca46 | 2012-10-13 10:46:48 +0100 | [diff] [blame] | 4 | #define __EXPORTED_HEADERS__ |
| 5 | #include <uapi/linux/types.h> |
Jaswinder Singh Rajput | 9d50638 | 2009-02-08 11:00:25 +0530 | [diff] [blame] | 6 | |
Jaswinder Singh Rajput | 527bdfe | 2009-02-06 20:47:58 +0530 | [diff] [blame] | 7 | #ifndef __ASSEMBLY__ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | #define DECLARE_BITMAP(name,bits) \ |
| 10 | unsigned long name[BITS_TO_LONGS(bits)] |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Al Viro | 0583fcc | 2011-07-26 17:04:15 -0400 | [diff] [blame] | 18 | typedef unsigned short umode_t; |
Al Viro | bb8ac18 | 2012-05-19 10:25:23 -0400 | [diff] [blame] | 19 | typedef __u32 nlink_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Richard Knutsson | 6e21828 | 2006-09-30 23:27:11 -0700 | [diff] [blame] | 29 | typedef _Bool bool; |
| 30 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Al Viro | 142956a | 2007-10-29 05:11:28 +0000 | [diff] [blame] | 36 | typedef unsigned long uintptr_t; |
| 37 | |
Arnd Bergmann | fbc416f | 2015-11-20 12:12:21 +0100 | [diff] [blame] | 38 | #ifdef CONFIG_HAVE_UID16 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Mike Frysinger | 7437a51 | 2008-02-08 04:21:24 -0800 | [diff] [blame] | 44 | #if defined(__GNUC__) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Mike Frysinger | 7437a51 | 2008-02-08 04:21:24 -0800 | [diff] [blame] | 110 | #if defined(__GNUC__) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | typedef __u64 uint64_t; |
| 112 | typedef __u64 u_int64_t; |
| 113 | typedef __s64 int64_t; |
| 114 | #endif |
| 115 | |
Andrew Morton | a75d377 | 2010-10-26 14:21:10 -0700 | [diff] [blame] | 116 | /* this is a special 64bit data type that is 8-byte aligned */ |
Jan Engelhardt | c82a5cb | 2008-01-31 03:57:36 -0800 | [diff] [blame] | 117 | #define aligned_u64 __u64 __attribute__((aligned(8))) |
Al Viro | 98a4a86 | 2006-11-08 00:26:51 -0800 | [diff] [blame] | 118 | #define aligned_be64 __be64 __attribute__((aligned(8))) |
| 119 | #define aligned_le64 __le64 __attribute__((aligned(8))) |
Harald Welte | 0ba2c6e | 2005-08-13 13:55:44 -0700 | [diff] [blame] | 120 | |
Roger Gammans | 2c2345c | 2006-10-04 13:37:45 +0200 | [diff] [blame] | 121 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | * The type used for indexing onto a disc or disc partition. |
Roger Gammans | 2c2345c | 2006-10-04 13:37:45 +0200 | [diff] [blame] | 123 | * |
| 124 | * Linux always considers sectors to be 512 bytes long independently |
| 125 | * of the devices real block size. |
Jens Axboe | b3a6ffe | 2008-12-12 09:51:16 +0100 | [diff] [blame] | 126 | * |
| 127 | * blkcnt_t is the type of the inode's block count. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | */ |
Bartlomiej Zolnierkiewicz | 90c699a | 2009-06-19 08:08:50 +0200 | [diff] [blame] | 129 | #ifdef CONFIG_LBDAF |
Matthew Wilcox | e624386 | 2006-12-04 03:38:31 -0700 | [diff] [blame] | 130 | typedef u64 sector_t; |
Matthew Wilcox | e624386 | 2006-12-04 03:38:31 -0700 | [diff] [blame] | 131 | typedef u64 blkcnt_t; |
| 132 | #else |
Jens Axboe | b3a6ffe | 2008-12-12 09:51:16 +0100 | [diff] [blame] | 133 | typedef unsigned long sector_t; |
Takashi Sato | a0f62ac | 2006-03-26 01:37:52 -0800 | [diff] [blame] | 134 | typedef unsigned long blkcnt_t; |
| 135 | #endif |
| 136 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | /* |
Geert Uytterhoeven | dd4a5c1 | 2015-02-12 15:01:22 -0800 | [diff] [blame] | 138 | * The type of an index into the pagecache. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | #define pgoff_t unsigned long |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | |
Yinghai Lu | 3a9ad0b | 2015-05-27 17:23:51 -0700 | [diff] [blame] | 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 | */ |
FUJITA Tomonori | 3e50594 | 2011-03-22 16:33:50 -0700 | [diff] [blame] | 151 | #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT |
| 152 | typedef u64 dma_addr_t; |
| 153 | #else |
| 154 | typedef u32 dma_addr_t; |
Yinghai Lu | 3a9ad0b | 2015-05-27 17:23:51 -0700 | [diff] [blame] | 155 | #endif |
FUJITA Tomonori | 3e50594 | 2011-03-22 16:33:50 -0700 | [diff] [blame] | 156 | |
Al Viro | af4ca45 | 2005-10-21 02:55:38 -0400 | [diff] [blame] | 157 | typedef unsigned __bitwise__ gfp_t; |
Al Viro | aeb5d72 | 2008-09-02 15:28:45 -0400 | [diff] [blame] | 158 | typedef unsigned __bitwise__ fmode_t; |
Greg Kroah-Hartman | cf7c712 | 2006-06-12 15:49:31 -0700 | [diff] [blame] | 159 | |
Jeremy Fitzhardinge | 600715d | 2008-09-11 01:31:45 -0700 | [diff] [blame] | 160 | #ifdef CONFIG_PHYS_ADDR_T_64BIT |
| 161 | typedef u64 phys_addr_t; |
| 162 | #else |
| 163 | typedef u32 phys_addr_t; |
| 164 | #endif |
| 165 | |
Jeremy Fitzhardinge | 8308c54 | 2008-09-11 01:31:50 -0700 | [diff] [blame] | 166 | typedef phys_addr_t resource_size_t; |
| 167 | |
Grant Likely | a699e4e | 2012-04-03 07:11:04 -0600 | [diff] [blame] | 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 | |
Matthew Wilcox | ea435467 | 2009-01-06 14:40:39 -0800 | [diff] [blame] | 174 | typedef struct { |
Anton Blanchard | 81880d6 | 2010-05-17 14:34:57 +1000 | [diff] [blame] | 175 | int counter; |
Matthew Wilcox | ea435467 | 2009-01-06 14:40:39 -0800 | [diff] [blame] | 176 | } atomic_t; |
| 177 | |
| 178 | #ifdef CONFIG_64BIT |
| 179 | typedef struct { |
Anton Blanchard | 81880d6 | 2010-05-17 14:34:57 +1000 | [diff] [blame] | 180 | long counter; |
Matthew Wilcox | ea435467 | 2009-01-06 14:40:39 -0800 | [diff] [blame] | 181 | } atomic64_t; |
| 182 | #endif |
| 183 | |
Chris Metcalf | de5d9bf | 2010-07-02 13:41:14 -0400 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Paul E. McKenney | 9909875 | 2011-05-31 21:03:55 -0700 | [diff] [blame] | 203 | /** |
Al Viro | 67d1214 | 2012-06-27 11:07:19 +0400 | [diff] [blame] | 204 | * struct callback_head - callback structure for use with RCU and task_work |
Paul E. McKenney | 9909875 | 2011-05-31 21:03:55 -0700 | [diff] [blame] | 205 | * @next: next update requests in a list |
| 206 | * @func: actual update function to call after the grace period. |
Kirill A. Shutemov | 720abae | 2015-11-05 18:44:18 -0800 | [diff] [blame] | 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(). |
Paul E. McKenney | 9909875 | 2011-05-31 21:03:55 -0700 | [diff] [blame] | 221 | */ |
Al Viro | 67d1214 | 2012-06-27 11:07:19 +0400 | [diff] [blame] | 222 | struct callback_head { |
| 223 | struct callback_head *next; |
| 224 | void (*func)(struct callback_head *head); |
Kirill A. Shutemov | 720abae | 2015-11-05 18:44:18 -0800 | [diff] [blame] | 225 | } __attribute__((aligned(sizeof(void *)))); |
Al Viro | 67d1214 | 2012-06-27 11:07:19 +0400 | [diff] [blame] | 226 | #define rcu_head callback_head |
Paul E. McKenney | 9909875 | 2011-05-31 21:03:55 -0700 | [diff] [blame] | 227 | |
Paul E. McKenney | ec90a19 | 2015-06-10 12:53:06 -0700 | [diff] [blame] | 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 | |
Richard Cochran | 74d23cc | 2014-12-21 19:46:56 +0100 | [diff] [blame] | 231 | /* clocksource cycle base type */ |
| 232 | typedef u64 cycle_t; |
| 233 | |
Jaswinder Singh Rajput | 527bdfe | 2009-02-06 20:47:58 +0530 | [diff] [blame] | 234 | #endif /* __ASSEMBLY__ */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | #endif /* _LINUX_TYPES_H */ |