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 12typedef u32 compat_size_t; 13typedef s32 compat_ssize_t; 14typedef s32 compat_time_t; 15typedef s32 compat_clock_t; 16typedef s32 compat_pid_t; 17typedef u32 __compat_uid_t; 18typedef u32 __compat_gid_t; 19typedef u32 __compat_uid32_t; 20typedef u32 __compat_gid32_t; 21typedef u32 compat_mode_t; 22typedef u32 compat_ino_t; 23typedef u32 compat_dev_t; 24typedef s32 compat_off_t; 25typedef s64 compat_loff_t; 26typedef s16 compat_nlink_t; 27typedef u16 compat_ipc_pid_t; 28typedef s32 compat_daddr_t; 29typedef u32 compat_caddr_t; 30typedef __kernel_fsid_t compat_fsid_t; 31typedef s32 compat_key_t; 32typedef s32 compat_timer_t; 33 34typedef s32 compat_int_t; 35typedef s32 compat_long_t; 36typedef u32 compat_uint_t; 37typedef u32 compat_ulong_t; 38 39struct compat_timespec { 40 compat_time_t tv_sec; 41 s32 tv_nsec; 42}; 43 44struct compat_timeval { 45 compat_time_t tv_sec; 46 s32 tv_usec; 47}; 48 49struct compat_stat { 50 compat_dev_t st_dev; 51 compat_ino_t st_ino; 52 compat_mode_t st_mode; 53 compat_nlink_t st_nlink; 54 __compat_uid32_t st_uid; 55 __compat_gid32_t st_gid; 56 compat_dev_t st_rdev; 57 compat_off_t st_size; 58 compat_off_t st_blksize; 59 compat_off_t st_blocks; 60 compat_time_t st_atime; 61 u32 st_atime_nsec; 62 compat_time_t st_mtime; 63 u32 st_mtime_nsec; 64 compat_time_t st_ctime; 65 u32 st_ctime_nsec; 66 u32 __unused4[2]; 67}; 68 69struct compat_flock { 70 short l_type; 71 short l_whence; 72 compat_off_t l_start; 73 compat_off_t l_len; 74 compat_pid_t l_pid; 75}; 76 77#define F_GETLK64 12 /* using 'struct flock64' */ 78#define F_SETLK64 13 79#define F_SETLKW64 14 80 81struct compat_flock64 { 82 short l_type; 83 short l_whence; 84 compat_loff_t l_start; 85 compat_loff_t l_len; 86 compat_pid_t l_pid; 87}; 88 89struct compat_statfs { 90 int f_type; 91 int f_bsize; 92 int f_blocks; 93 int f_bfree; 94 int f_bavail; 95 int f_files; 96 int f_ffree; 97 compat_fsid_t f_fsid; 98 int f_namelen; /* SunOS ignores this field. */ 99 int f_frsize; 100 int f_spare[5]; 101}; 102 103#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff 104#define COMPAT_RLIM_INFINITY 0xffffffff 105 106typedef u32 compat_old_sigset_t; 107 108#define _COMPAT_NSIG 64 109#define _COMPAT_NSIG_BPW 32 110 111typedef u32 compat_sigset_word; 112 113#define COMPAT_OFF_T_MAX 0x7fffffff 114#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 115 116/* 117 * A pointer passed in from user mode. This should not 118 * be used for syscall parameters, just declare them 119 * as pointers because the syscall entry code will have 120 * appropriately comverted them already. 121 */ 122typedef u32 compat_uptr_t; 123 124static inline void __user *compat_ptr(compat_uptr_t uptr) 125{ 126 return (void __user *)(unsigned long)uptr; 127} 128 129static inline compat_uptr_t ptr_to_compat(void __user *uptr) 130{ 131 return (u32)(unsigned long)uptr; 132} 133 134static inline void __user *compat_alloc_user_space(long len) 135{ 136 struct pt_regs *regs = current->thread.regs; 137 unsigned long usp = regs->gpr[1]; 138 139 /* 140 * We cant access below the stack pointer in the 32bit ABI and 141 * can access 288 bytes in the 64bit ABI 142 */ 143 if (!(test_thread_flag(TIF_32BIT))) 144 usp -= 288; 145 146 return (void __user *) (usp - len); 147} 148 149/* 150 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to 151 * it we may as well define it. 152 */ 153struct compat_ipc64_perm { 154 compat_key_t key; 155 __compat_uid_t uid; 156 __compat_gid_t gid; 157 __compat_uid_t cuid; 158 __compat_gid_t cgid; 159 compat_mode_t mode; 160 unsigned int seq; 161 unsigned int __pad2; 162 unsigned long __unused1; /* yes they really are 64bit pads */ 163 unsigned long __unused2; 164}; 165 166struct compat_semid64_ds { 167 struct compat_ipc64_perm sem_perm; 168 unsigned int __unused1; 169 compat_time_t sem_otime; 170 unsigned int __unused2; 171 compat_time_t sem_ctime; 172 compat_ulong_t sem_nsems; 173 compat_ulong_t __unused3; 174 compat_ulong_t __unused4; 175}; 176 177struct compat_msqid64_ds { 178 struct compat_ipc64_perm msg_perm; 179 unsigned int __unused1; 180 compat_time_t msg_stime; 181 unsigned int __unused2; 182 compat_time_t msg_rtime; 183 unsigned int __unused3; 184 compat_time_t msg_ctime; 185 compat_ulong_t msg_cbytes; 186 compat_ulong_t msg_qnum; 187 compat_ulong_t msg_qbytes; 188 compat_pid_t msg_lspid; 189 compat_pid_t msg_lrpid; 190 compat_ulong_t __unused4; 191 compat_ulong_t __unused5; 192}; 193 194struct compat_shmid64_ds { 195 struct compat_ipc64_perm shm_perm; 196 unsigned int __unused1; 197 compat_time_t shm_atime; 198 unsigned int __unused2; 199 compat_time_t shm_dtime; 200 unsigned int __unused3; 201 compat_time_t shm_ctime; 202 unsigned int __unused4; 203 compat_size_t shm_segsz; 204 compat_pid_t shm_cpid; 205 compat_pid_t shm_lpid; 206 compat_ulong_t shm_nattch; 207 compat_ulong_t __unused5; 208 compat_ulong_t __unused6; 209}; 210 211#endif /* __KERNEL__ */ 212#endif /* _ASM_POWERPC_COMPAT_H */ 213