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_BASE 0x00080000UL /* Always one */ 16#define PSW32_MASK_MCHECK 0x00040000UL 17#define PSW32_MASK_WAIT 0x00020000UL 18#define PSW32_MASK_PSTATE 0x00010000UL 19#define PSW32_MASK_ASC 0x0000C000UL 20#define PSW32_MASK_CC 0x00003000UL 21#define PSW32_MASK_PM 0x00000f00UL 22 23#define PSW32_MASK_USER 0x00003F00UL 24 25#define PSW32_ADDR_AMODE 0x80000000UL 26#define PSW32_ADDR_INSN 0x7FFFFFFFUL 27 28#define PSW32_DEFAULT_KEY (((u32) PAGE_DEFAULT_ACC) << 20) 29 30#define PSW32_ASC_PRIMARY 0x00000000UL 31#define PSW32_ASC_ACCREG 0x00004000UL 32#define PSW32_ASC_SECONDARY 0x00008000UL 33#define PSW32_ASC_HOME 0x0000C000UL 34 35extern u32 psw32_user_bits; 36 37#define COMPAT_USER_HZ 100 38#define COMPAT_UTS_MACHINE "s390\0\0\0\0" 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_flags; 134 s32 f_spare[5]; 135}; 136 137#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff 138#define COMPAT_RLIM_INFINITY 0xffffffff 139 140typedef u32 compat_old_sigset_t; /* at least 32 bits */ 141 142#define _COMPAT_NSIG 64 143#define _COMPAT_NSIG_BPW 32 144 145typedef u32 compat_sigset_word; 146 147#define COMPAT_OFF_T_MAX 0x7fffffff 148#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 149 150/* 151 * A pointer passed in from user mode. This should not 152 * be used for syscall parameters, just declare them 153 * as pointers because the syscall entry code will have 154 * appropriately converted them already. 155 */ 156typedef u32 compat_uptr_t; 157 158static inline void __user *compat_ptr(compat_uptr_t uptr) 159{ 160 return (void __user *)(unsigned long)(uptr & 0x7fffffffUL); 161} 162 163static inline compat_uptr_t ptr_to_compat(void __user *uptr) 164{ 165 return (u32)(unsigned long)uptr; 166} 167 168#ifdef CONFIG_COMPAT 169 170static inline int is_compat_task(void) 171{ 172 return is_32bit_task(); 173} 174 175#endif 176 177static inline void __user *arch_compat_alloc_user_space(long len) 178{ 179 unsigned long stack; 180 181 stack = KSTK_ESP(current); 182 if (is_compat_task()) 183 stack &= 0x7fffffffUL; 184 return (void __user *) (stack - len); 185} 186 187struct compat_ipc64_perm { 188 compat_key_t key; 189 __compat_uid32_t uid; 190 __compat_gid32_t gid; 191 __compat_uid32_t cuid; 192 __compat_gid32_t cgid; 193 compat_mode_t mode; 194 unsigned short __pad1; 195 unsigned short seq; 196 unsigned short __pad2; 197 unsigned int __unused1; 198 unsigned int __unused2; 199}; 200 201struct compat_semid64_ds { 202 struct compat_ipc64_perm sem_perm; 203 compat_time_t sem_otime; 204 compat_ulong_t __pad1; 205 compat_time_t sem_ctime; 206 compat_ulong_t __pad2; 207 compat_ulong_t sem_nsems; 208 compat_ulong_t __unused1; 209 compat_ulong_t __unused2; 210}; 211 212struct compat_msqid64_ds { 213 struct compat_ipc64_perm msg_perm; 214 compat_time_t msg_stime; 215 compat_ulong_t __pad1; 216 compat_time_t msg_rtime; 217 compat_ulong_t __pad2; 218 compat_time_t msg_ctime; 219 compat_ulong_t __pad3; 220 compat_ulong_t msg_cbytes; 221 compat_ulong_t msg_qnum; 222 compat_ulong_t msg_qbytes; 223 compat_pid_t msg_lspid; 224 compat_pid_t msg_lrpid; 225 compat_ulong_t __unused1; 226 compat_ulong_t __unused2; 227}; 228 229struct compat_shmid64_ds { 230 struct compat_ipc64_perm shm_perm; 231 compat_size_t shm_segsz; 232 compat_time_t shm_atime; 233 compat_ulong_t __pad1; 234 compat_time_t shm_dtime; 235 compat_ulong_t __pad2; 236 compat_time_t shm_ctime; 237 compat_ulong_t __pad3; 238 compat_pid_t shm_cpid; 239 compat_pid_t shm_lpid; 240 compat_ulong_t shm_nattch; 241 compat_ulong_t __unused1; 242 compat_ulong_t __unused2; 243}; 244#endif /* _ASM_S390X_COMPAT_H */ 245