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236 lines
5.7 KiB
236 lines
5.7 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _LINUX_TYPES_H |
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#define _LINUX_TYPES_H |
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#define __EXPORTED_HEADERS__ |
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#include <uapi/linux/types.h> |
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#ifndef __ASSEMBLY__ |
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#define DECLARE_BITMAP(name,bits) \ |
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unsigned long name[BITS_TO_LONGS(bits)] |
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typedef u32 __kernel_dev_t; |
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typedef __kernel_fd_set fd_set; |
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typedef __kernel_dev_t dev_t; |
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typedef __kernel_ulong_t ino_t; |
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typedef __kernel_mode_t mode_t; |
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typedef unsigned short umode_t; |
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typedef u32 nlink_t; |
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typedef __kernel_off_t off_t; |
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typedef __kernel_pid_t pid_t; |
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typedef __kernel_daddr_t daddr_t; |
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typedef __kernel_key_t key_t; |
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typedef __kernel_suseconds_t suseconds_t; |
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typedef __kernel_timer_t timer_t; |
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typedef __kernel_clockid_t clockid_t; |
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typedef __kernel_mqd_t mqd_t; |
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typedef _Bool bool; |
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typedef __kernel_uid32_t uid_t; |
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typedef __kernel_gid32_t gid_t; |
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typedef __kernel_uid16_t uid16_t; |
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typedef __kernel_gid16_t gid16_t; |
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typedef unsigned long uintptr_t; |
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#ifdef CONFIG_HAVE_UID16 |
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/* This is defined by include/asm-{arch}/posix_types.h */ |
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typedef __kernel_old_uid_t old_uid_t; |
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typedef __kernel_old_gid_t old_gid_t; |
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#endif /* CONFIG_UID16 */ |
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#if defined(__GNUC__) |
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typedef __kernel_loff_t loff_t; |
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#endif |
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/* |
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* The following typedefs are also protected by individual ifdefs for |
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* historical reasons: |
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*/ |
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#ifndef _SIZE_T |
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#define _SIZE_T |
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typedef __kernel_size_t size_t; |
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#endif |
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#ifndef _SSIZE_T |
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#define _SSIZE_T |
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typedef __kernel_ssize_t ssize_t; |
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#endif |
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#ifndef _PTRDIFF_T |
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#define _PTRDIFF_T |
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typedef __kernel_ptrdiff_t ptrdiff_t; |
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#endif |
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#ifndef _CLOCK_T |
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#define _CLOCK_T |
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typedef __kernel_clock_t clock_t; |
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#endif |
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#ifndef _CADDR_T |
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#define _CADDR_T |
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typedef __kernel_caddr_t caddr_t; |
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#endif |
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/* bsd */ |
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typedef unsigned char u_char; |
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typedef unsigned short u_short; |
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typedef unsigned int u_int; |
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typedef unsigned long u_long; |
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/* sysv */ |
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typedef unsigned char unchar; |
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typedef unsigned short ushort; |
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typedef unsigned int uint; |
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typedef unsigned long ulong; |
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#ifndef __BIT_TYPES_DEFINED__ |
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#define __BIT_TYPES_DEFINED__ |
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typedef u8 u_int8_t; |
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typedef s8 int8_t; |
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typedef u16 u_int16_t; |
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typedef s16 int16_t; |
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typedef u32 u_int32_t; |
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typedef s32 int32_t; |
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#endif /* !(__BIT_TYPES_DEFINED__) */ |
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typedef u8 uint8_t; |
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typedef u16 uint16_t; |
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typedef u32 uint32_t; |
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#if defined(__GNUC__) |
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typedef u64 uint64_t; |
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typedef u64 u_int64_t; |
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typedef s64 int64_t; |
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#endif |
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/* this is a special 64bit data type that is 8-byte aligned */ |
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#define aligned_u64 __aligned_u64 |
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#define aligned_be64 __aligned_be64 |
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#define aligned_le64 __aligned_le64 |
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/** |
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* The type used for indexing onto a disc or disc partition. |
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* |
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* Linux always considers sectors to be 512 bytes long independently |
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* of the devices real block size. |
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* |
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* blkcnt_t is the type of the inode's block count. |
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*/ |
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typedef u64 sector_t; |
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typedef u64 blkcnt_t; |
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/* |
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* The type of an index into the pagecache. |
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*/ |
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#define pgoff_t unsigned long |
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/* |
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* A dma_addr_t can hold any valid DMA address, i.e., any address returned |
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* by the DMA API. |
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* |
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* If the DMA API only uses 32-bit addresses, dma_addr_t need only be 32 |
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* bits wide. Bus addresses, e.g., PCI BARs, may be wider than 32 bits, |
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* but drivers do memory-mapped I/O to ioremapped kernel virtual addresses, |
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* so they don't care about the size of the actual bus addresses. |
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*/ |
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#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT |
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typedef u64 dma_addr_t; |
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#else |
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typedef u32 dma_addr_t; |
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#endif |
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typedef unsigned int __bitwise gfp_t; |
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typedef unsigned int __bitwise slab_flags_t; |
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typedef unsigned int __bitwise fmode_t; |
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#ifdef CONFIG_PHYS_ADDR_T_64BIT |
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typedef u64 phys_addr_t; |
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#else |
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typedef u32 phys_addr_t; |
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#endif |
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typedef phys_addr_t resource_size_t; |
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/* |
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* This type is the placeholder for a hardware interrupt number. It has to be |
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* big enough to enclose whatever representation is used by a given platform. |
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*/ |
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typedef unsigned long irq_hw_number_t; |
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typedef struct { |
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int counter; |
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} atomic_t; |
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#define ATOMIC_INIT(i) { (i) } |
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#ifdef CONFIG_64BIT |
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typedef struct { |
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s64 counter; |
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} atomic64_t; |
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#endif |
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struct list_head { |
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struct list_head *next, *prev; |
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}; |
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struct hlist_head { |
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struct hlist_node *first; |
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}; |
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struct hlist_node { |
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struct hlist_node *next, **pprev; |
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}; |
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struct ustat { |
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__kernel_daddr_t f_tfree; |
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#ifdef CONFIG_ARCH_32BIT_USTAT_F_TINODE |
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unsigned int f_tinode; |
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#else |
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unsigned long f_tinode; |
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#endif |
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char f_fname[6]; |
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char f_fpack[6]; |
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}; |
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/** |
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* struct callback_head - callback structure for use with RCU and task_work |
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* @next: next update requests in a list |
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* @func: actual update function to call after the grace period. |
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* |
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* The struct is aligned to size of pointer. On most architectures it happens |
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* naturally due ABI requirements, but some architectures (like CRIS) have |
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* weird ABI and we need to ask it explicitly. |
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* |
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* The alignment is required to guarantee that bit 0 of @next will be |
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* clear under normal conditions -- as long as we use call_rcu() or |
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* call_srcu() to queue the callback. |
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* |
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* This guarantee is important for few reasons: |
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* - future call_rcu_lazy() will make use of lower bits in the pointer; |
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* - the structure shares storage space in struct page with @compound_head, |
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* which encode PageTail() in bit 0. The guarantee is needed to avoid |
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* false-positive PageTail(). |
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*/ |
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struct callback_head { |
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struct callback_head *next; |
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void (*func)(struct callback_head *head); |
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} __attribute__((aligned(sizeof(void *)))); |
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#define rcu_head callback_head |
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typedef void (*rcu_callback_t)(struct rcu_head *head); |
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typedef void (*call_rcu_func_t)(struct rcu_head *head, rcu_callback_t func); |
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typedef void (*swap_r_func_t)(void *a, void *b, int size, const void *priv); |
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typedef void (*swap_func_t)(void *a, void *b, int size); |
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typedef int (*cmp_r_func_t)(const void *a, const void *b, const void *priv); |
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typedef int (*cmp_func_t)(const void *a, const void *b); |
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#endif /* __ASSEMBLY__ */ |
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#endif /* _LINUX_TYPES_H */
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