blob: 9834e90aa01007b65aba351c76a5e47627c3e286 [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_TYPES_H
#define _LINUX_TYPES_H
#include <uapi/linux/types.h>
#ifndef __ASSEMBLY__
#define DECLARE_BITMAP(name,bits) \
unsigned long name[BITS_TO_LONGS(bits)]
typedef u32 __kernel_dev_t;
typedef __kernel_fd_set fd_set;
typedef __kernel_dev_t dev_t;
typedef __kernel_ino_t ino_t;
typedef __kernel_mode_t mode_t;
typedef unsigned short umode_t;
typedef u32 nlink_t;
typedef __kernel_off_t off_t;
typedef __kernel_pid_t pid_t;
typedef __kernel_daddr_t daddr_t;
typedef __kernel_key_t key_t;
typedef __kernel_suseconds_t suseconds_t;
typedef __kernel_timer_t timer_t;
typedef __kernel_clockid_t clockid_t;
typedef __kernel_mqd_t mqd_t;
typedef _Bool bool;
typedef __kernel_uid32_t uid_t;
typedef __kernel_gid32_t gid_t;
typedef __kernel_uid16_t uid16_t;
typedef __kernel_gid16_t gid16_t;
typedef unsigned long uintptr_t;
/* This is defined by include/asm-{arch}/posix_types.h */
typedef __kernel_old_uid_t old_uid_t;
typedef __kernel_old_gid_t old_gid_t;
#endif /* CONFIG_UID16 */
#if defined(__GNUC__)
typedef __kernel_loff_t loff_t;
* The following typedefs are also protected by individual ifdefs for
* historical reasons:
#ifndef _SIZE_T
#define _SIZE_T
typedef __kernel_size_t size_t;
#ifndef _SSIZE_T
#define _SSIZE_T
typedef __kernel_ssize_t ssize_t;
#ifndef _PTRDIFF_T
#define _PTRDIFF_T
typedef __kernel_ptrdiff_t ptrdiff_t;
#ifndef _TIME_T
#define _TIME_T
typedef __kernel_time_t time_t;
#ifndef _CLOCK_T
#define _CLOCK_T
typedef __kernel_clock_t clock_t;
#ifndef _CADDR_T
#define _CADDR_T
typedef __kernel_caddr_t caddr_t;
/* bsd */
typedef unsigned char u_char;
typedef unsigned short u_short;
typedef unsigned int u_int;
typedef unsigned long u_long;
/* sysv */
typedef unsigned char unchar;
typedef unsigned short ushort;
typedef unsigned int uint;
typedef unsigned long ulong;
typedef u8 u_int8_t;
typedef s8 int8_t;
typedef u16 u_int16_t;
typedef s16 int16_t;
typedef u32 u_int32_t;
typedef s32 int32_t;
#endif /* !(__BIT_TYPES_DEFINED__) */
typedef u8 uint8_t;
typedef u16 uint16_t;
typedef u32 uint32_t;
#if defined(__GNUC__)
typedef u64 uint64_t;
typedef u64 u_int64_t;
typedef s64 int64_t;
/* this is a special 64bit data type that is 8-byte aligned */
#define aligned_u64 __aligned_u64
#define aligned_be64 __aligned_be64
#define aligned_le64 __aligned_le64
* The type used for indexing onto a disc or disc partition.
* Linux always considers sectors to be 512 bytes long independently
* of the devices real block size.
* blkcnt_t is the type of the inode's block count.
typedef u64 sector_t;
typedef u64 blkcnt_t;
typedef unsigned long sector_t;
typedef unsigned long blkcnt_t;
* The type of an index into the pagecache.
#define pgoff_t unsigned long
* A dma_addr_t can hold any valid DMA address, i.e., any address returned
* by the DMA API.
* If the DMA API only uses 32-bit addresses, dma_addr_t need only be 32
* bits wide. Bus addresses, e.g., PCI BARs, may be wider than 32 bits,
* but drivers do memory-mapped I/O to ioremapped kernel virtual addresses,
* so they don't care about the size of the actual bus addresses.
typedef u64 dma_addr_t;
typedef u32 dma_addr_t;
typedef unsigned __bitwise gfp_t;
typedef unsigned __bitwise slab_flags_t;
typedef unsigned __bitwise fmode_t;
typedef u64 phys_addr_t;
typedef u32 phys_addr_t;
typedef phys_addr_t resource_size_t;
* This type is the placeholder for a hardware interrupt number. It has to be
* big enough to enclose whatever representation is used by a given platform.
typedef unsigned long irq_hw_number_t;
typedef struct {
int counter;
} atomic_t;
#ifdef CONFIG_64BIT
typedef struct {
long counter;
} atomic64_t;
struct list_head {
struct list_head *next, *prev;
struct hlist_head {
struct hlist_node *first;
struct hlist_node {
struct hlist_node *next, **pprev;
struct ustat {
__kernel_daddr_t f_tfree;
__kernel_ino_t f_tinode;
char f_fname[6];
char f_fpack[6];
* struct callback_head - callback structure for use with RCU and task_work
* @next: next update requests in a list
* @func: actual update function to call after the grace period.
* The struct is aligned to size of pointer. On most architectures it happens
* naturally due ABI requirements, but some architectures (like CRIS) have
* weird ABI and we need to ask it explicitly.
* The alignment is required to guarantee that bit 0 of @next will be
* clear under normal conditions -- as long as we use call_rcu(),
* call_rcu_bh(), call_rcu_sched(), or call_srcu() to queue callback.
* This guarantee is important for few reasons:
* - future call_rcu_lazy() will make use of lower bits in the pointer;
* - the structure shares storage space in struct page with @compound_head,
* which encode PageTail() in bit 0. The guarantee is needed to avoid
* false-positive PageTail().
struct callback_head {
struct callback_head *next;
void (*func)(struct callback_head *head);
} __attribute__((aligned(sizeof(void *))));
#define rcu_head callback_head
typedef void (*rcu_callback_t)(struct rcu_head *head);
typedef void (*call_rcu_func_t)(struct rcu_head *head, rcu_callback_t func);
#endif /* __ASSEMBLY__ */
#endif /* _LINUX_TYPES_H */