1#ifndef _ASM_S390X_COMPAT_H 2#define _ASM_S390X_COMPAT_H 3/* 4 * Architecture specific compatibility types 5 */ 6#include <linux/types.h> 7#include <linux/sched.h> 8#include <linux/thread_info.h> 9 10#define PSW32_MASK_PER 0x40000000UL 11#define PSW32_MASK_DAT 0x04000000UL 12#define PSW32_MASK_IO 0x02000000UL 13#define PSW32_MASK_EXT 0x01000000UL 14#define PSW32_MASK_KEY 0x00F00000UL 15#define PSW32_MASK_MCHECK 0x00040000UL 16#define PSW32_MASK_WAIT 0x00020000UL 17#define PSW32_MASK_PSTATE 0x00010000UL 18#define PSW32_MASK_ASC 0x0000C000UL 19#define PSW32_MASK_CC 0x00003000UL 20#define PSW32_MASK_PM 0x00000f00UL 21 22#define PSW32_ADDR_AMODE31 0x80000000UL 23#define PSW32_ADDR_INSN 0x7FFFFFFFUL 24 25#define PSW32_BASE_BITS 0x00080000UL 26 27#define PSW32_ASC_PRIMARY 0x00000000UL 28#define PSW32_ASC_ACCREG 0x00004000UL 29#define PSW32_ASC_SECONDARY 0x00008000UL 30#define PSW32_ASC_HOME 0x0000C000UL 31 32#define PSW32_MASK_MERGE(CURRENT,NEW) \ 33 (((CURRENT) & ~(PSW32_MASK_CC|PSW32_MASK_PM)) | \ 34 ((NEW) & (PSW32_MASK_CC|PSW32_MASK_PM))) 35 36extern long psw32_user_bits; 37 38#define COMPAT_USER_HZ 100 39 40typedef u32 compat_size_t; 41typedef s32 compat_ssize_t; 42typedef s32 compat_time_t; 43typedef s32 compat_clock_t; 44typedef s32 compat_pid_t; 45typedef u16 __compat_uid_t; 46typedef u16 __compat_gid_t; 47typedef u32 __compat_uid32_t; 48typedef u32 __compat_gid32_t; 49typedef u16 compat_mode_t; 50typedef u32 compat_ino_t; 51typedef u16 compat_dev_t; 52typedef s32 compat_off_t; 53typedef s64 compat_loff_t; 54typedef u16 compat_nlink_t; 55typedef u16 compat_ipc_pid_t; 56typedef s32 compat_daddr_t; 57typedef u32 compat_caddr_t; 58typedef __kernel_fsid_t compat_fsid_t; 59typedef s32 compat_key_t; 60typedef s32 compat_timer_t; 61 62typedef s32 compat_int_t; 63typedef s32 compat_long_t; 64typedef s64 compat_s64; 65typedef u32 compat_uint_t; 66typedef u32 compat_ulong_t; 67typedef u64 compat_u64; 68 69struct compat_timespec { 70 compat_time_t tv_sec; 71 s32 tv_nsec; 72}; 73 74struct compat_timeval { 75 compat_time_t tv_sec; 76 s32 tv_usec; 77}; 78 79struct compat_stat { 80 compat_dev_t st_dev; 81 u16 __pad1; 82 compat_ino_t st_ino; 83 compat_mode_t st_mode; 84 compat_nlink_t st_nlink; 85 __compat_uid_t st_uid; 86 __compat_gid_t st_gid; 87 compat_dev_t st_rdev; 88 u16 __pad2; 89 u32 st_size; 90 u32 st_blksize; 91 u32 st_blocks; 92 u32 st_atime; 93 u32 st_atime_nsec; 94 u32 st_mtime; 95 u32 st_mtime_nsec; 96 u32 st_ctime; 97 u32 st_ctime_nsec; 98 u32 __unused4; 99 u32 __unused5; 100}; 101 102struct compat_flock { 103 short l_type; 104 short l_whence; 105 compat_off_t l_start; 106 compat_off_t l_len; 107 compat_pid_t l_pid; 108}; 109 110#define F_GETLK64 12 111#define F_SETLK64 13 112#define F_SETLKW64 14 113 114struct compat_flock64 { 115 short l_type; 116 short l_whence; 117 compat_loff_t l_start; 118 compat_loff_t l_len; 119 compat_pid_t l_pid; 120}; 121 122struct compat_statfs { 123 s32 f_type; 124 s32 f_bsize; 125 s32 f_blocks; 126 s32 f_bfree; 127 s32 f_bavail; 128 s32 f_files; 129 s32 f_ffree; 130 compat_fsid_t f_fsid; 131 s32 f_namelen; 132 s32 f_frsize; 133 s32 f_spare[6]; 134}; 135 136#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff 137#define COMPAT_RLIM_INFINITY 0xffffffff 138 139typedef u32 compat_old_sigset_t; /* at least 32 bits */ 140 141#define _COMPAT_NSIG 64 142#define _COMPAT_NSIG_BPW 32 143 144typedef u32 compat_sigset_word; 145 146#define COMPAT_OFF_T_MAX 0x7fffffff 147#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 148 149/* 150 * A pointer passed in from user mode. This should not 151 * be used for syscall parameters, just declare them 152 * as pointers because the syscall entry code will have 153 * appropriately converted them already. 154 */ 155typedef u32 compat_uptr_t; 156 157static inline void __user *compat_ptr(compat_uptr_t uptr) 158{ 159 return (void __user *)(unsigned long)(uptr & 0x7fffffffUL); 160} 161 162static inline compat_uptr_t ptr_to_compat(void __user *uptr) 163{ 164 return (u32)(unsigned long)uptr; 165} 166 167#ifdef CONFIG_COMPAT 168 169static inline int is_compat_task(void) 170{ 171 return test_thread_flag(TIF_31BIT); 172} 173 174#else 175 176static inline int is_compat_task(void) 177{ 178 return 0; 179} 180 181#endif 182 183static inline void __user *compat_alloc_user_space(long len) 184{ 185 unsigned long stack; 186 187 stack = KSTK_ESP(current); 188 if (is_compat_task()) 189 stack &= 0x7fffffffUL; 190 return (void __user *) (stack - len); 191} 192 193struct compat_ipc64_perm { 194 compat_key_t key; 195 __compat_uid32_t uid; 196 __compat_gid32_t gid; 197 __compat_uid32_t cuid; 198 __compat_gid32_t cgid; 199 compat_mode_t mode; 200 unsigned short __pad1; 201 unsigned short seq; 202 unsigned short __pad2; 203 unsigned int __unused1; 204 unsigned int __unused2; 205}; 206 207struct compat_semid64_ds { 208 struct compat_ipc64_perm sem_perm; 209 compat_time_t sem_otime; 210 compat_ulong_t __pad1; 211 compat_time_t sem_ctime; 212 compat_ulong_t __pad2; 213 compat_ulong_t sem_nsems; 214 compat_ulong_t __unused1; 215 compat_ulong_t __unused2; 216}; 217 218struct compat_msqid64_ds { 219 struct compat_ipc64_perm msg_perm; 220 compat_time_t msg_stime; 221 compat_ulong_t __pad1; 222 compat_time_t msg_rtime; 223 compat_ulong_t __pad2; 224 compat_time_t msg_ctime; 225 compat_ulong_t __pad3; 226 compat_ulong_t msg_cbytes; 227 compat_ulong_t msg_qnum; 228 compat_ulong_t msg_qbytes; 229 compat_pid_t msg_lspid; 230 compat_pid_t msg_lrpid; 231 compat_ulong_t __unused1; 232 compat_ulong_t __unused2; 233}; 234 235struct compat_shmid64_ds { 236 struct compat_ipc64_perm shm_perm; 237 compat_size_t shm_segsz; 238 compat_time_t shm_atime; 239 compat_ulong_t __pad1; 240 compat_time_t shm_dtime; 241 compat_ulong_t __pad2; 242 compat_time_t shm_ctime; 243 compat_ulong_t __pad3; 244 compat_pid_t shm_cpid; 245 compat_pid_t shm_lpid; 246 compat_ulong_t shm_nattch; 247 compat_ulong_t __unused1; 248 compat_ulong_t __unused2; 249}; 250#endif /* _ASM_S390X_COMPAT_H */ 251