| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _LINUX_TYPES_H |
| #define _LINUX_TYPES_H |
| |
| #define __EXPORTED_HEADERS__ |
| #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; |
| |
| #ifdef CONFIG_HAVE_UID16 |
| /* 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; |
| #endif |
| |
| /* |
| * The following typedefs are also protected by individual ifdefs for |
| * historical reasons: |
| */ |
| #ifndef _SIZE_T |
| #define _SIZE_T |
| typedef __kernel_size_t size_t; |
| #endif |
| |
| #ifndef _SSIZE_T |
| #define _SSIZE_T |
| typedef __kernel_ssize_t ssize_t; |
| #endif |
| |
| #ifndef _PTRDIFF_T |
| #define _PTRDIFF_T |
| typedef __kernel_ptrdiff_t ptrdiff_t; |
| #endif |
| |
| #ifndef _TIME_T |
| #define _TIME_T |
| typedef __kernel_time_t time_t; |
| #endif |
| |
| #ifndef _CLOCK_T |
| #define _CLOCK_T |
| typedef __kernel_clock_t clock_t; |
| #endif |
| |
| #ifndef _CADDR_T |
| #define _CADDR_T |
| typedef __kernel_caddr_t caddr_t; |
| #endif |
| |
| /* 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; |
| |
| #ifndef __BIT_TYPES_DEFINED__ |
| #define __BIT_TYPES_DEFINED__ |
| |
| 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; |
| #endif |
| |
| /* this is a special 64bit data type that is 8-byte aligned */ |
| #define aligned_u64 __u64 __attribute__((aligned(8))) |
| #define aligned_be64 __be64 __attribute__((aligned(8))) |
| #define aligned_le64 __le64 __attribute__((aligned(8))) |
| |
| /** |
| * 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. |
| */ |
| #ifdef CONFIG_LBDAF |
| typedef u64 sector_t; |
| typedef u64 blkcnt_t; |
| #else |
| typedef unsigned long sector_t; |
| typedef unsigned long blkcnt_t; |
| #endif |
| |
| /* |
| * 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. |
| */ |
| #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT |
| typedef u64 dma_addr_t; |
| #else |
| typedef u32 dma_addr_t; |
| #endif |
| |
| typedef unsigned __bitwise gfp_t; |
| typedef unsigned __bitwise fmode_t; |
| |
| #ifdef CONFIG_PHYS_ADDR_T_64BIT |
| typedef u64 phys_addr_t; |
| #else |
| typedef u32 phys_addr_t; |
| #endif |
| |
| 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; |
| #endif |
| |
| 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 spacer 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 */ |