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 #define COMPAT_USER_HZ 100 12 #define COMPAT_UTS_MACHINE "parisc\0\0" 13 14 typedef u32 compat_size_t; 15 typedef s32 compat_ssize_t; 16 typedef s32 compat_time_t; 17 typedef s32 compat_clock_t; 18 typedef s32 compat_pid_t; 19 typedef u32 __compat_uid_t; 20 typedef u32 __compat_gid_t; 21 typedef u32 __compat_uid32_t; 22 typedef u32 __compat_gid32_t; 23 typedef u16 compat_mode_t; 24 typedef u32 compat_ino_t; 25 typedef u32 compat_dev_t; 26 typedef s32 compat_off_t; 27 typedef s64 compat_loff_t; 28 typedef u16 compat_nlink_t; 29 typedef u16 compat_ipc_pid_t; 30 typedef s32 compat_daddr_t; 31 typedef u32 compat_caddr_t; 32 typedef s32 compat_key_t; 33 typedef s32 compat_timer_t; 34 35 typedef s32 compat_int_t; 36 typedef s32 compat_long_t; 37 typedef s64 compat_s64; 38 typedef u32 compat_uint_t; 39 typedef u32 compat_ulong_t; 40 typedef u64 compat_u64; 41 typedef u32 compat_uptr_t; 42 43 struct compat_timespec { 44 compat_time_t tv_sec; 45 s32 tv_nsec; 46 }; 47 48 struct compat_timeval { 49 compat_time_t tv_sec; 50 s32 tv_usec; 51 }; 52 53 struct compat_stat { 54 compat_dev_t st_dev; /* dev_t is 32 bits on parisc */ 55 compat_ino_t st_ino; /* 32 bits */ 56 compat_mode_t st_mode; /* 16 bits */ 57 compat_nlink_t st_nlink; /* 16 bits */ 58 u16 st_reserved1; /* old st_uid */ 59 u16 st_reserved2; /* old st_gid */ 60 compat_dev_t st_rdev; 61 compat_off_t st_size; 62 compat_time_t st_atime; 63 u32 st_atime_nsec; 64 compat_time_t st_mtime; 65 u32 st_mtime_nsec; 66 compat_time_t st_ctime; 67 u32 st_ctime_nsec; 68 s32 st_blksize; 69 s32 st_blocks; 70 u32 __unused1; /* ACL stuff */ 71 compat_dev_t __unused2; /* network */ 72 compat_ino_t __unused3; /* network */ 73 u32 __unused4; /* cnodes */ 74 u16 __unused5; /* netsite */ 75 short st_fstype; 76 compat_dev_t st_realdev; 77 u16 st_basemode; 78 u16 st_spareshort; 79 __compat_uid32_t st_uid; 80 __compat_gid32_t st_gid; 81 u32 st_spare4[3]; 82 }; 83 84 struct compat_flock { 85 short l_type; 86 short l_whence; 87 compat_off_t l_start; 88 compat_off_t l_len; 89 compat_pid_t l_pid; 90 }; 91 92 struct compat_flock64 { 93 short l_type; 94 short l_whence; 95 compat_loff_t l_start; 96 compat_loff_t l_len; 97 compat_pid_t l_pid; 98 }; 99 100 struct compat_statfs { 101 s32 f_type; 102 s32 f_bsize; 103 s32 f_blocks; 104 s32 f_bfree; 105 s32 f_bavail; 106 s32 f_files; 107 s32 f_ffree; 108 __kernel_fsid_t f_fsid; 109 s32 f_namelen; 110 s32 f_frsize; 111 s32 f_flags; 112 s32 f_spare[4]; 113 }; 114 115 struct compat_sigcontext { 116 compat_int_t sc_flags; 117 compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */ 118 u64 sc_fr[32]; 119 compat_int_t sc_iasq[2]; 120 compat_int_t sc_iaoq[2]; 121 compat_int_t sc_sar; /* cr11 */ 122 }; 123 124 #define COMPAT_RLIM_INFINITY 0xffffffff 125 126 typedef u32 compat_old_sigset_t; /* at least 32 bits */ 127 128 #define _COMPAT_NSIG 64 129 #define _COMPAT_NSIG_BPW 32 130 131 typedef u32 compat_sigset_word; 132 133 #define COMPAT_OFF_T_MAX 0x7fffffff 134 135 struct compat_ipc64_perm { 136 compat_key_t key; 137 __compat_uid_t uid; 138 __compat_gid_t gid; 139 __compat_uid_t cuid; 140 __compat_gid_t cgid; 141 unsigned short int __pad1; 142 compat_mode_t mode; 143 unsigned short int __pad2; 144 unsigned short int seq; 145 unsigned int __pad3; 146 unsigned long __unused1; /* yes they really are 64bit pads */ 147 unsigned long __unused2; 148 }; 149 150 struct compat_semid64_ds { 151 struct compat_ipc64_perm sem_perm; 152 unsigned int __unused1; 153 compat_time_t sem_otime; 154 unsigned int __unused2; 155 compat_time_t sem_ctime; 156 compat_ulong_t sem_nsems; 157 compat_ulong_t __unused3; 158 compat_ulong_t __unused4; 159 }; 160 161 struct compat_msqid64_ds { 162 struct compat_ipc64_perm msg_perm; 163 unsigned int __unused1; 164 compat_time_t msg_stime; 165 unsigned int __unused2; 166 compat_time_t msg_rtime; 167 unsigned int __unused3; 168 compat_time_t msg_ctime; 169 compat_ulong_t msg_cbytes; 170 compat_ulong_t msg_qnum; 171 compat_ulong_t msg_qbytes; 172 compat_pid_t msg_lspid; 173 compat_pid_t msg_lrpid; 174 compat_ulong_t __unused4; 175 compat_ulong_t __unused5; 176 }; 177 178 struct compat_shmid64_ds { 179 struct compat_ipc64_perm shm_perm; 180 unsigned int __unused1; 181 compat_time_t shm_atime; 182 unsigned int __unused2; 183 compat_time_t shm_dtime; 184 unsigned int __unused3; 185 compat_time_t shm_ctime; 186 unsigned int __unused4; 187 compat_size_t shm_segsz; 188 compat_pid_t shm_cpid; 189 compat_pid_t shm_lpid; 190 compat_ulong_t shm_nattch; 191 compat_ulong_t __unused5; 192 compat_ulong_t __unused6; 193 }; 194 195 /* 196 * A pointer passed in from user mode. This should not 197 * be used for syscall parameters, just declare them 198 * as pointers because the syscall entry code will have 199 * appropriately converted them already. 200 */ 201 202 static inline void __user *compat_ptr(compat_uptr_t uptr) 203 { 204 return (void __user *)(unsigned long)uptr; 205 } 206 207 static inline compat_uptr_t ptr_to_compat(void __user *uptr) 208 { 209 return (u32)(unsigned long)uptr; 210 } 211 212 static __inline__ void __user *arch_compat_alloc_user_space(long len) 213 { 214 struct pt_regs *regs = ¤t->thread.regs; 215 return (void __user *)regs->gr[30]; 216 } 217 218 static inline int __is_compat_task(struct task_struct *t) 219 { 220 return test_ti_thread_flag(task_thread_info(t), TIF_32BIT); 221 } 222 223 static inline int is_compat_task(void) 224 { 225 return __is_compat_task(current); 226 } 227 228 #endif /* _ASM_PARISC_COMPAT_H */ 229