Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Heiko Carstens | 7757591 | 2009-06-12 10:26:25 +0200 | [diff] [blame] | 8 | #include <linux/thread_info.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | |
Gerald Schaefer | c1821c2 | 2007-02-05 21:18:17 +0100 | [diff] [blame] | 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 |
Martin Schwidefsky | b50511e | 2011-10-30 15:16:50 +0100 | [diff] [blame] | 15 | #define PSW32_MASK_BASE 0x00080000UL /* Always one */ |
Gerald Schaefer | c1821c2 | 2007-02-05 21:18:17 +0100 | [diff] [blame] | 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 | |
Martin Schwidefsky | b50511e | 2011-10-30 15:16:50 +0100 | [diff] [blame] | 23 | #define PSW32_MASK_USER 0x00003F00UL |
| 24 | |
| 25 | #define PSW32_ADDR_AMODE 0x80000000UL |
Gerald Schaefer | c1821c2 | 2007-02-05 21:18:17 +0100 | [diff] [blame] | 26 | #define PSW32_ADDR_INSN 0x7FFFFFFFUL |
| 27 | |
Martin Schwidefsky | b50511e | 2011-10-30 15:16:50 +0100 | [diff] [blame] | 28 | #define PSW32_DEFAULT_KEY (((u32) PAGE_DEFAULT_ACC) << 20) |
Gerald Schaefer | c1821c2 | 2007-02-05 21:18:17 +0100 | [diff] [blame] | 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 | |
Martin Schwidefsky | b50511e | 2011-10-30 15:16:50 +0100 | [diff] [blame] | 35 | extern u32 psw32_user_bits; |
Gerald Schaefer | c1821c2 | 2007-02-05 21:18:17 +0100 | [diff] [blame] | 36 | |
Christoph Hellwig | e28cbf2 | 2010-03-10 15:21:19 -0800 | [diff] [blame] | 37 | #define COMPAT_USER_HZ 100 |
| 38 | #define COMPAT_UTS_MACHINE "s390\0\0\0\0" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | |
| 40 | typedef u32 compat_size_t; |
| 41 | typedef s32 compat_ssize_t; |
| 42 | typedef s32 compat_time_t; |
| 43 | typedef s32 compat_clock_t; |
| 44 | typedef s32 compat_pid_t; |
Stephen Rothwell | 202e597 | 2005-09-06 15:16:40 -0700 | [diff] [blame] | 45 | typedef u16 __compat_uid_t; |
| 46 | typedef u16 __compat_gid_t; |
| 47 | typedef u32 __compat_uid32_t; |
| 48 | typedef u32 __compat_gid32_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | typedef u16 compat_mode_t; |
| 50 | typedef u32 compat_ino_t; |
| 51 | typedef u16 compat_dev_t; |
| 52 | typedef s32 compat_off_t; |
| 53 | typedef s64 compat_loff_t; |
| 54 | typedef u16 compat_nlink_t; |
| 55 | typedef u16 compat_ipc_pid_t; |
| 56 | typedef s32 compat_daddr_t; |
| 57 | typedef u32 compat_caddr_t; |
| 58 | typedef __kernel_fsid_t compat_fsid_t; |
| 59 | typedef s32 compat_key_t; |
| 60 | typedef s32 compat_timer_t; |
| 61 | |
| 62 | typedef s32 compat_int_t; |
| 63 | typedef s32 compat_long_t; |
Arnd Bergmann | 4b77758 | 2007-07-15 23:41:11 -0700 | [diff] [blame] | 64 | typedef s64 compat_s64; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | typedef u32 compat_uint_t; |
| 66 | typedef u32 compat_ulong_t; |
Arnd Bergmann | 4b77758 | 2007-07-15 23:41:11 -0700 | [diff] [blame] | 67 | typedef u64 compat_u64; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | |
| 69 | struct compat_timespec { |
| 70 | compat_time_t tv_sec; |
| 71 | s32 tv_nsec; |
| 72 | }; |
| 73 | |
| 74 | struct compat_timeval { |
| 75 | compat_time_t tv_sec; |
| 76 | s32 tv_usec; |
| 77 | }; |
| 78 | |
| 79 | struct 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; |
Stephen Rothwell | 202e597 | 2005-09-06 15:16:40 -0700 | [diff] [blame] | 85 | __compat_uid_t st_uid; |
| 86 | __compat_gid_t st_gid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 102 | struct 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 | |
| 114 | struct 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 | |
| 122 | struct 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; |
Eric W. Biederman | 1448c72 | 2011-10-17 13:40:02 -0700 | [diff] [blame] | 133 | s32 f_flags; |
| 134 | s32 f_spare[5]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | }; |
| 136 | |
| 137 | #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff |
| 138 | #define COMPAT_RLIM_INFINITY 0xffffffff |
| 139 | |
| 140 | typedef u32 compat_old_sigset_t; /* at least 32 bits */ |
| 141 | |
| 142 | #define _COMPAT_NSIG 64 |
| 143 | #define _COMPAT_NSIG_BPW 32 |
| 144 | |
| 145 | typedef 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 |
Marcin Ĺšlusarz | 8b3de0d | 2008-02-03 16:32:51 +0200 | [diff] [blame] | 154 | * appropriately converted them already. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | */ |
| 156 | typedef u32 compat_uptr_t; |
| 157 | |
| 158 | static inline void __user *compat_ptr(compat_uptr_t uptr) |
| 159 | { |
| 160 | return (void __user *)(unsigned long)(uptr & 0x7fffffffUL); |
| 161 | } |
| 162 | |
Ingo Molnar | f267fa9 | 2006-03-27 01:16:09 -0800 | [diff] [blame] | 163 | static inline compat_uptr_t ptr_to_compat(void __user *uptr) |
| 164 | { |
| 165 | return (u32)(unsigned long)uptr; |
| 166 | } |
| 167 | |
Heiko Carstens | 7757591 | 2009-06-12 10:26:25 +0200 | [diff] [blame] | 168 | #ifdef CONFIG_COMPAT |
| 169 | |
| 170 | static inline int is_compat_task(void) |
| 171 | { |
Heiko Carstens | a05c90f | 2011-01-12 09:55:29 +0100 | [diff] [blame] | 172 | return is_32bit_task(); |
Heiko Carstens | 7757591 | 2009-06-12 10:26:25 +0200 | [diff] [blame] | 173 | } |
| 174 | |
| 175 | #else |
| 176 | |
| 177 | static inline int is_compat_task(void) |
| 178 | { |
| 179 | return 0; |
| 180 | } |
| 181 | |
| 182 | #endif |
| 183 | |
H. Peter Anvin | c41d68a | 2010-09-07 16:16:18 -0700 | [diff] [blame] | 184 | static inline void __user *arch_compat_alloc_user_space(long len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | { |
| 186 | unsigned long stack; |
| 187 | |
| 188 | stack = KSTK_ESP(current); |
Heiko Carstens | 7757591 | 2009-06-12 10:26:25 +0200 | [diff] [blame] | 189 | if (is_compat_task()) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | stack &= 0x7fffffffUL; |
| 191 | return (void __user *) (stack - len); |
| 192 | } |
| 193 | |
| 194 | struct compat_ipc64_perm { |
| 195 | compat_key_t key; |
Stephen Rothwell | 202e597 | 2005-09-06 15:16:40 -0700 | [diff] [blame] | 196 | __compat_uid32_t uid; |
| 197 | __compat_gid32_t gid; |
| 198 | __compat_uid32_t cuid; |
| 199 | __compat_gid32_t cgid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 208 | struct 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 | |
| 219 | struct 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 | |
| 236 | struct 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 */ |