1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _ASM_PARISC_COMPAT_H 3#define _ASM_PARISC_COMPAT_H 4/* 5 * Architecture specific compatibility types 6 */ 7#include <linux/types.h> 8#include <linux/sched.h> 9#include <linux/thread_info.h> 10 11#include <asm-generic/compat.h> 12 13#define COMPAT_USER_HZ 100 14#define COMPAT_UTS_MACHINE "parisc\0\0" 15 16typedef u32 __compat_uid_t; 17typedef u32 __compat_gid_t; 18typedef u32 __compat_uid32_t; 19typedef u32 __compat_gid32_t; 20typedef u16 compat_mode_t; 21typedef u32 compat_dev_t; 22typedef u16 compat_nlink_t; 23typedef u16 compat_ipc_pid_t; 24typedef u32 compat_caddr_t; 25typedef s64 compat_s64; 26typedef u64 compat_u64; 27 28struct compat_stat { 29 compat_dev_t st_dev; /* dev_t is 32 bits on parisc */ 30 compat_ino_t st_ino; /* 32 bits */ 31 compat_mode_t st_mode; /* 16 bits */ 32 compat_nlink_t st_nlink; /* 16 bits */ 33 u16 st_reserved1; /* old st_uid */ 34 u16 st_reserved2; /* old st_gid */ 35 compat_dev_t st_rdev; 36 compat_off_t st_size; 37 old_time32_t st_atime; 38 u32 st_atime_nsec; 39 old_time32_t st_mtime; 40 u32 st_mtime_nsec; 41 old_time32_t st_ctime; 42 u32 st_ctime_nsec; 43 s32 st_blksize; 44 s32 st_blocks; 45 u32 __unused1; /* ACL stuff */ 46 compat_dev_t __unused2; /* network */ 47 compat_ino_t __unused3; /* network */ 48 u32 __unused4; /* cnodes */ 49 u16 __unused5; /* netsite */ 50 short st_fstype; 51 compat_dev_t st_realdev; 52 u16 st_basemode; 53 u16 st_spareshort; 54 __compat_uid32_t st_uid; 55 __compat_gid32_t st_gid; 56 u32 st_spare4[3]; 57}; 58 59struct compat_flock { 60 short l_type; 61 short l_whence; 62 compat_off_t l_start; 63 compat_off_t l_len; 64 compat_pid_t l_pid; 65}; 66 67struct compat_flock64 { 68 short l_type; 69 short l_whence; 70 compat_loff_t l_start; 71 compat_loff_t l_len; 72 compat_pid_t l_pid; 73}; 74 75struct compat_statfs { 76 s32 f_type; 77 s32 f_bsize; 78 s32 f_blocks; 79 s32 f_bfree; 80 s32 f_bavail; 81 s32 f_files; 82 s32 f_ffree; 83 __kernel_fsid_t f_fsid; 84 s32 f_namelen; 85 s32 f_frsize; 86 s32 f_flags; 87 s32 f_spare[4]; 88}; 89 90struct compat_sigcontext { 91 compat_int_t sc_flags; 92 compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */ 93 u64 sc_fr[32]; 94 compat_int_t sc_iasq[2]; 95 compat_int_t sc_iaoq[2]; 96 compat_int_t sc_sar; /* cr11 */ 97}; 98 99#define COMPAT_RLIM_INFINITY 0xffffffff 100 101typedef u32 compat_old_sigset_t; /* at least 32 bits */ 102 103#define _COMPAT_NSIG 64 104#define _COMPAT_NSIG_BPW 32 105 106typedef u32 compat_sigset_word; 107 108#define COMPAT_OFF_T_MAX 0x7fffffff 109 110struct compat_ipc64_perm { 111 compat_key_t key; 112 __compat_uid_t uid; 113 __compat_gid_t gid; 114 __compat_uid_t cuid; 115 __compat_gid_t cgid; 116 unsigned short int __pad1; 117 compat_mode_t mode; 118 unsigned short int __pad2; 119 unsigned short int seq; 120 unsigned int __pad3; 121 unsigned long __unused1; /* yes they really are 64bit pads */ 122 unsigned long __unused2; 123}; 124 125struct compat_semid64_ds { 126 struct compat_ipc64_perm sem_perm; 127 unsigned int sem_otime_high; 128 unsigned int sem_otime; 129 unsigned int sem_ctime_high; 130 unsigned int sem_ctime; 131 compat_ulong_t sem_nsems; 132 compat_ulong_t __unused3; 133 compat_ulong_t __unused4; 134}; 135 136struct compat_msqid64_ds { 137 struct compat_ipc64_perm msg_perm; 138 unsigned int msg_stime_high; 139 unsigned int msg_stime; 140 unsigned int msg_rtime_high; 141 unsigned int msg_rtime; 142 unsigned int msg_ctime_high; 143 unsigned int msg_ctime; 144 compat_ulong_t msg_cbytes; 145 compat_ulong_t msg_qnum; 146 compat_ulong_t msg_qbytes; 147 compat_pid_t msg_lspid; 148 compat_pid_t msg_lrpid; 149 compat_ulong_t __unused4; 150 compat_ulong_t __unused5; 151}; 152 153struct compat_shmid64_ds { 154 struct compat_ipc64_perm shm_perm; 155 unsigned int shm_atime_high; 156 unsigned int shm_atime; 157 unsigned int shm_dtime_high; 158 unsigned int shm_dtime; 159 unsigned int shm_ctime_high; 160 unsigned int shm_ctime; 161 unsigned int __unused4; 162 compat_size_t shm_segsz; 163 compat_pid_t shm_cpid; 164 compat_pid_t shm_lpid; 165 compat_ulong_t shm_nattch; 166 compat_ulong_t __unused5; 167 compat_ulong_t __unused6; 168}; 169 170/* 171 * The type of struct elf_prstatus.pr_reg in compatible core dumps. 172 */ 173#define COMPAT_ELF_NGREG 80 174typedef compat_ulong_t compat_elf_gregset_t[COMPAT_ELF_NGREG]; 175 176/* 177 * A pointer passed in from user mode. This should not 178 * be used for syscall parameters, just declare them 179 * as pointers because the syscall entry code will have 180 * appropriately converted them already. 181 */ 182 183static inline void __user *compat_ptr(compat_uptr_t uptr) 184{ 185 return (void __user *)(unsigned long)uptr; 186} 187 188static inline compat_uptr_t ptr_to_compat(void __user *uptr) 189{ 190 return (u32)(unsigned long)uptr; 191} 192 193static __inline__ void __user *arch_compat_alloc_user_space(long len) 194{ 195 struct pt_regs *regs = ¤t->thread.regs; 196 return (void __user *)regs->gr[30]; 197} 198 199static inline int __is_compat_task(struct task_struct *t) 200{ 201 return test_ti_thread_flag(task_thread_info(t), TIF_32BIT); 202} 203 204static inline int is_compat_task(void) 205{ 206 return __is_compat_task(current); 207} 208 209#endif /* _ASM_PARISC_COMPAT_H */ 210