1#ifndef _ASM_POWERPC_COMPAT_H 2#define _ASM_POWERPC_COMPAT_H 3#ifdef __KERNEL__ 4/* 5 * Architecture specific compatibility types 6 */ 7#include <linux/types.h> 8#include <linux/sched.h> 9 10#define COMPAT_USER_HZ 100 11#define COMPAT_UTS_MACHINE "ppc\0\0" 12 13typedef u32 compat_size_t; 14typedef s32 compat_ssize_t; 15typedef s32 compat_time_t; 16typedef s32 compat_clock_t; 17typedef s32 compat_pid_t; 18typedef u32 __compat_uid_t; 19typedef u32 __compat_gid_t; 20typedef u32 __compat_uid32_t; 21typedef u32 __compat_gid32_t; 22typedef u32 compat_mode_t; 23typedef u32 compat_ino_t; 24typedef u32 compat_dev_t; 25typedef s32 compat_off_t; 26typedef s64 compat_loff_t; 27typedef s16 compat_nlink_t; 28typedef u16 compat_ipc_pid_t; 29typedef s32 compat_daddr_t; 30typedef u32 compat_caddr_t; 31typedef __kernel_fsid_t compat_fsid_t; 32typedef s32 compat_key_t; 33typedef s32 compat_timer_t; 34 35typedef s32 compat_int_t; 36typedef s32 compat_long_t; 37typedef s64 compat_s64; 38typedef u32 compat_uint_t; 39typedef u32 compat_ulong_t; 40typedef u64 compat_u64; 41 42struct compat_timespec { 43 compat_time_t tv_sec; 44 s32 tv_nsec; 45}; 46 47struct compat_timeval { 48 compat_time_t tv_sec; 49 s32 tv_usec; 50}; 51 52struct compat_stat { 53 compat_dev_t st_dev; 54 compat_ino_t st_ino; 55 compat_mode_t st_mode; 56 compat_nlink_t st_nlink; 57 __compat_uid32_t st_uid; 58 __compat_gid32_t st_gid; 59 compat_dev_t st_rdev; 60 compat_off_t st_size; 61 compat_off_t st_blksize; 62 compat_off_t st_blocks; 63 compat_time_t st_atime; 64 u32 st_atime_nsec; 65 compat_time_t st_mtime; 66 u32 st_mtime_nsec; 67 compat_time_t st_ctime; 68 u32 st_ctime_nsec; 69 u32 __unused4[2]; 70}; 71 72struct compat_flock { 73 short l_type; 74 short l_whence; 75 compat_off_t l_start; 76 compat_off_t l_len; 77 compat_pid_t l_pid; 78}; 79 80#define F_GETLK64 12 /* using 'struct flock64' */ 81#define F_SETLK64 13 82#define F_SETLKW64 14 83 84struct compat_flock64 { 85 short l_type; 86 short l_whence; 87 compat_loff_t l_start; 88 compat_loff_t l_len; 89 compat_pid_t l_pid; 90}; 91 92struct compat_statfs { 93 int f_type; 94 int f_bsize; 95 int f_blocks; 96 int f_bfree; 97 int f_bavail; 98 int f_files; 99 int f_ffree; 100 compat_fsid_t f_fsid; 101 int f_namelen; /* SunOS ignores this field. */ 102 int f_frsize; 103 int f_spare[5]; 104}; 105 106#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff 107#define COMPAT_RLIM_INFINITY 0xffffffff 108 109typedef u32 compat_old_sigset_t; 110 111#define _COMPAT_NSIG 64 112#define _COMPAT_NSIG_BPW 32 113 114typedef u32 compat_sigset_word; 115 116#define COMPAT_OFF_T_MAX 0x7fffffff 117#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 118 119/* 120 * A pointer passed in from user mode. This should not 121 * be used for syscall parameters, just declare them 122 * as pointers because the syscall entry code will have 123 * appropriately converted them already. 124 */ 125typedef u32 compat_uptr_t; 126 127static inline void __user *compat_ptr(compat_uptr_t uptr) 128{ 129 return (void __user *)(unsigned long)uptr; 130} 131 132static inline compat_uptr_t ptr_to_compat(void __user *uptr) 133{ 134 return (u32)(unsigned long)uptr; 135} 136 137static inline void __user *arch_compat_alloc_user_space(long len) 138{ 139 struct pt_regs *regs = current->thread.regs; 140 unsigned long usp = regs->gpr[1]; 141 142 /* 143 * We cant access below the stack pointer in the 32bit ABI and 144 * can access 288 bytes in the 64bit ABI 145 */ 146 if (!is_32bit_task()) 147 usp -= 288; 148 149 return (void __user *) (usp - len); 150} 151 152/* 153 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to 154 * it we may as well define it. 155 */ 156struct compat_ipc64_perm { 157 compat_key_t key; 158 __compat_uid_t uid; 159 __compat_gid_t gid; 160 __compat_uid_t cuid; 161 __compat_gid_t cgid; 162 compat_mode_t mode; 163 unsigned int seq; 164 unsigned int __pad2; 165 unsigned long __unused1; /* yes they really are 64bit pads */ 166 unsigned long __unused2; 167}; 168 169struct compat_semid64_ds { 170 struct compat_ipc64_perm sem_perm; 171 unsigned int __unused1; 172 compat_time_t sem_otime; 173 unsigned int __unused2; 174 compat_time_t sem_ctime; 175 compat_ulong_t sem_nsems; 176 compat_ulong_t __unused3; 177 compat_ulong_t __unused4; 178}; 179 180struct compat_msqid64_ds { 181 struct compat_ipc64_perm msg_perm; 182 unsigned int __unused1; 183 compat_time_t msg_stime; 184 unsigned int __unused2; 185 compat_time_t msg_rtime; 186 unsigned int __unused3; 187 compat_time_t msg_ctime; 188 compat_ulong_t msg_cbytes; 189 compat_ulong_t msg_qnum; 190 compat_ulong_t msg_qbytes; 191 compat_pid_t msg_lspid; 192 compat_pid_t msg_lrpid; 193 compat_ulong_t __unused4; 194 compat_ulong_t __unused5; 195}; 196 197struct compat_shmid64_ds { 198 struct compat_ipc64_perm shm_perm; 199 unsigned int __unused1; 200 compat_time_t shm_atime; 201 unsigned int __unused2; 202 compat_time_t shm_dtime; 203 unsigned int __unused3; 204 compat_time_t shm_ctime; 205 unsigned int __unused4; 206 compat_size_t shm_segsz; 207 compat_pid_t shm_cpid; 208 compat_pid_t shm_lpid; 209 compat_ulong_t shm_nattch; 210 compat_ulong_t __unused5; 211 compat_ulong_t __unused6; 212}; 213 214static inline int is_compat_task(void) 215{ 216 return is_32bit_task(); 217} 218 219#endif /* __KERNEL__ */ 220#endif /* _ASM_POWERPC_COMPAT_H */ 221