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#define COMPAT_UTS_MACHINE "s390\0\0\0\0" 40 41typedef u32 compat_size_t; 42typedef s32 compat_ssize_t; 43typedef s32 compat_time_t; 44typedef s32 compat_clock_t; 45typedef s32 compat_pid_t; 46typedef u16 __compat_uid_t; 47typedef u16 __compat_gid_t; 48typedef u32 __compat_uid32_t; 49typedef u32 __compat_gid32_t; 50typedef u16 compat_mode_t; 51typedef u32 compat_ino_t; 52typedef u16 compat_dev_t; 53typedef s32 compat_off_t; 54typedef s64 compat_loff_t; 55typedef u16 compat_nlink_t; 56typedef u16 compat_ipc_pid_t; 57typedef s32 compat_daddr_t; 58typedef u32 compat_caddr_t; 59typedef __kernel_fsid_t compat_fsid_t; 60typedef s32 compat_key_t; 61typedef s32 compat_timer_t; 62 63typedef s32 compat_int_t; 64typedef s32 compat_long_t; 65typedef s64 compat_s64; 66typedef u32 compat_uint_t; 67typedef u32 compat_ulong_t; 68typedef u64 compat_u64; 69 70struct compat_timespec { 71 compat_time_t tv_sec; 72 s32 tv_nsec; 73}; 74 75struct compat_timeval { 76 compat_time_t tv_sec; 77 s32 tv_usec; 78}; 79 80struct compat_stat { 81 compat_dev_t st_dev; 82 u16 __pad1; 83 compat_ino_t st_ino; 84 compat_mode_t st_mode; 85 compat_nlink_t st_nlink; 86 __compat_uid_t st_uid; 87 __compat_gid_t st_gid; 88 compat_dev_t st_rdev; 89 u16 __pad2; 90 u32 st_size; 91 u32 st_blksize; 92 u32 st_blocks; 93 u32 st_atime; 94 u32 st_atime_nsec; 95 u32 st_mtime; 96 u32 st_mtime_nsec; 97 u32 st_ctime; 98 u32 st_ctime_nsec; 99 u32 __unused4; 100 u32 __unused5; 101}; 102 103struct compat_flock { 104 short l_type; 105 short l_whence; 106 compat_off_t l_start; 107 compat_off_t l_len; 108 compat_pid_t l_pid; 109}; 110 111#define F_GETLK64 12 112#define F_SETLK64 13 113#define F_SETLKW64 14 114 115struct compat_flock64 { 116 short l_type; 117 short l_whence; 118 compat_loff_t l_start; 119 compat_loff_t l_len; 120 compat_pid_t l_pid; 121}; 122 123struct compat_statfs { 124 s32 f_type; 125 s32 f_bsize; 126 s32 f_blocks; 127 s32 f_bfree; 128 s32 f_bavail; 129 s32 f_files; 130 s32 f_ffree; 131 compat_fsid_t f_fsid; 132 s32 f_namelen; 133 s32 f_frsize; 134 s32 f_spare[6]; 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#else 176 177static inline int is_compat_task(void) 178{ 179 return 0; 180} 181 182#endif 183 184static inline void __user *arch_compat_alloc_user_space(long len) 185{ 186 unsigned long stack; 187 188 stack = KSTK_ESP(current); 189 if (is_compat_task()) 190 stack &= 0x7fffffffUL; 191 return (void __user *) (stack - len); 192} 193 194struct compat_ipc64_perm { 195 compat_key_t key; 196 __compat_uid32_t uid; 197 __compat_gid32_t gid; 198 __compat_uid32_t cuid; 199 __compat_gid32_t cgid; 200 compat_mode_t mode; 201 unsigned short __pad1; 202 unsigned short seq; 203 unsigned short __pad2; 204 unsigned int __unused1; 205 unsigned int __unused2; 206}; 207 208struct compat_semid64_ds { 209 struct compat_ipc64_perm sem_perm; 210 compat_time_t sem_otime; 211 compat_ulong_t __pad1; 212 compat_time_t sem_ctime; 213 compat_ulong_t __pad2; 214 compat_ulong_t sem_nsems; 215 compat_ulong_t __unused1; 216 compat_ulong_t __unused2; 217}; 218 219struct compat_msqid64_ds { 220 struct compat_ipc64_perm msg_perm; 221 compat_time_t msg_stime; 222 compat_ulong_t __pad1; 223 compat_time_t msg_rtime; 224 compat_ulong_t __pad2; 225 compat_time_t msg_ctime; 226 compat_ulong_t __pad3; 227 compat_ulong_t msg_cbytes; 228 compat_ulong_t msg_qnum; 229 compat_ulong_t msg_qbytes; 230 compat_pid_t msg_lspid; 231 compat_pid_t msg_lrpid; 232 compat_ulong_t __unused1; 233 compat_ulong_t __unused2; 234}; 235 236struct compat_shmid64_ds { 237 struct compat_ipc64_perm shm_perm; 238 compat_size_t shm_segsz; 239 compat_time_t shm_atime; 240 compat_ulong_t __pad1; 241 compat_time_t shm_dtime; 242 compat_ulong_t __pad2; 243 compat_time_t shm_ctime; 244 compat_ulong_t __pad3; 245 compat_pid_t shm_cpid; 246 compat_pid_t shm_lpid; 247 compat_ulong_t shm_nattch; 248 compat_ulong_t __unused1; 249 compat_ulong_t __unused2; 250}; 251#endif /* _ASM_S390X_COMPAT_H */ 252