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_flags; 104 int f_spare[4]; 105}; 106 107#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff 108#define COMPAT_RLIM_INFINITY 0xffffffff 109 110typedef u32 compat_old_sigset_t; 111 112#define _COMPAT_NSIG 64 113#define _COMPAT_NSIG_BPW 32 114 115typedef u32 compat_sigset_word; 116 117#define COMPAT_OFF_T_MAX 0x7fffffff 118#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 119 120/* 121 * A pointer passed in from user mode. This should not 122 * be used for syscall parameters, just declare them 123 * as pointers because the syscall entry code will have 124 * appropriately converted them already. 125 */ 126typedef u32 compat_uptr_t; 127 128static inline void __user *compat_ptr(compat_uptr_t uptr) 129{ 130 return (void __user *)(unsigned long)uptr; 131} 132 133static inline compat_uptr_t ptr_to_compat(void __user *uptr) 134{ 135 return (u32)(unsigned long)uptr; 136} 137 138static inline void __user *arch_compat_alloc_user_space(long len) 139{ 140 struct pt_regs *regs = current->thread.regs; 141 unsigned long usp = regs->gpr[1]; 142 143 /* 144 * We can't access below the stack pointer in the 32bit ABI and 145 * can access 288 bytes in the 64bit ABI 146 */ 147 if (!is_32bit_task()) 148 usp -= 288; 149 150 return (void __user *) (usp - len); 151} 152 153/* 154 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to 155 * it we may as well define it. 156 */ 157struct compat_ipc64_perm { 158 compat_key_t key; 159 __compat_uid_t uid; 160 __compat_gid_t gid; 161 __compat_uid_t cuid; 162 __compat_gid_t cgid; 163 compat_mode_t mode; 164 unsigned int seq; 165 unsigned int __pad2; 166 unsigned long __unused1; /* yes they really are 64bit pads */ 167 unsigned long __unused2; 168}; 169 170struct compat_semid64_ds { 171 struct compat_ipc64_perm sem_perm; 172 unsigned int __unused1; 173 compat_time_t sem_otime; 174 unsigned int __unused2; 175 compat_time_t sem_ctime; 176 compat_ulong_t sem_nsems; 177 compat_ulong_t __unused3; 178 compat_ulong_t __unused4; 179}; 180 181struct compat_msqid64_ds { 182 struct compat_ipc64_perm msg_perm; 183 unsigned int __unused1; 184 compat_time_t msg_stime; 185 unsigned int __unused2; 186 compat_time_t msg_rtime; 187 unsigned int __unused3; 188 compat_time_t msg_ctime; 189 compat_ulong_t msg_cbytes; 190 compat_ulong_t msg_qnum; 191 compat_ulong_t msg_qbytes; 192 compat_pid_t msg_lspid; 193 compat_pid_t msg_lrpid; 194 compat_ulong_t __unused4; 195 compat_ulong_t __unused5; 196}; 197 198struct compat_shmid64_ds { 199 struct compat_ipc64_perm shm_perm; 200 unsigned int __unused1; 201 compat_time_t shm_atime; 202 unsigned int __unused2; 203 compat_time_t shm_dtime; 204 unsigned int __unused3; 205 compat_time_t shm_ctime; 206 unsigned int __unused4; 207 compat_size_t shm_segsz; 208 compat_pid_t shm_cpid; 209 compat_pid_t shm_lpid; 210 compat_ulong_t shm_nattch; 211 compat_ulong_t __unused5; 212 compat_ulong_t __unused6; 213}; 214 215static inline int is_compat_task(void) 216{ 217 return is_32bit_task(); 218} 219 220#endif /* __KERNEL__ */ 221#endif /* _ASM_POWERPC_COMPAT_H */ 222