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 s64 compat_s64; 37typedef u32 compat_uint_t; 38typedef u32 compat_ulong_t; 39typedef u64 compat_u64; 40 41struct compat_timespec { 42 compat_time_t tv_sec; 43 s32 tv_nsec; 44}; 45 46struct compat_timeval { 47 compat_time_t tv_sec; 48 s32 tv_usec; 49}; 50 51struct compat_stat { 52 compat_dev_t st_dev; 53 compat_ino_t st_ino; 54 compat_mode_t st_mode; 55 compat_nlink_t st_nlink; 56 __compat_uid32_t st_uid; 57 __compat_gid32_t st_gid; 58 compat_dev_t st_rdev; 59 compat_off_t st_size; 60 compat_off_t st_blksize; 61 compat_off_t st_blocks; 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 u32 __unused4[2]; 69}; 70 71struct compat_flock { 72 short l_type; 73 short l_whence; 74 compat_off_t l_start; 75 compat_off_t l_len; 76 compat_pid_t l_pid; 77}; 78 79#define F_GETLK64 12 /* using 'struct flock64' */ 80#define F_SETLK64 13 81#define F_SETLKW64 14 82 83struct compat_flock64 { 84 short l_type; 85 short l_whence; 86 compat_loff_t l_start; 87 compat_loff_t l_len; 88 compat_pid_t l_pid; 89}; 90 91struct compat_statfs { 92 int f_type; 93 int f_bsize; 94 int f_blocks; 95 int f_bfree; 96 int f_bavail; 97 int f_files; 98 int f_ffree; 99 compat_fsid_t f_fsid; 100 int f_namelen; /* SunOS ignores this field. */ 101 int f_frsize; 102 int f_spare[5]; 103}; 104 105#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff 106#define COMPAT_RLIM_INFINITY 0xffffffff 107 108typedef u32 compat_old_sigset_t; 109 110#define _COMPAT_NSIG 64 111#define _COMPAT_NSIG_BPW 32 112 113typedef u32 compat_sigset_word; 114 115#define COMPAT_OFF_T_MAX 0x7fffffff 116#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 117 118/* 119 * A pointer passed in from user mode. This should not 120 * be used for syscall parameters, just declare them 121 * as pointers because the syscall entry code will have 122 * appropriately converted them already. 123 */ 124typedef u32 compat_uptr_t; 125 126static inline void __user *compat_ptr(compat_uptr_t uptr) 127{ 128 return (void __user *)(unsigned long)uptr; 129} 130 131static inline compat_uptr_t ptr_to_compat(void __user *uptr) 132{ 133 return (u32)(unsigned long)uptr; 134} 135 136static inline void __user *compat_alloc_user_space(long len) 137{ 138 struct pt_regs *regs = current->thread.regs; 139 unsigned long usp = regs->gpr[1]; 140 141 /* 142 * We cant access below the stack pointer in the 32bit ABI and 143 * can access 288 bytes in the 64bit ABI 144 */ 145 if (!(test_thread_flag(TIF_32BIT))) 146 usp -= 288; 147 148 return (void __user *) (usp - len); 149} 150 151/* 152 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to 153 * it we may as well define it. 154 */ 155struct compat_ipc64_perm { 156 compat_key_t key; 157 __compat_uid_t uid; 158 __compat_gid_t gid; 159 __compat_uid_t cuid; 160 __compat_gid_t cgid; 161 compat_mode_t mode; 162 unsigned int seq; 163 unsigned int __pad2; 164 unsigned long __unused1; /* yes they really are 64bit pads */ 165 unsigned long __unused2; 166}; 167 168struct compat_semid64_ds { 169 struct compat_ipc64_perm sem_perm; 170 unsigned int __unused1; 171 compat_time_t sem_otime; 172 unsigned int __unused2; 173 compat_time_t sem_ctime; 174 compat_ulong_t sem_nsems; 175 compat_ulong_t __unused3; 176 compat_ulong_t __unused4; 177}; 178 179struct compat_msqid64_ds { 180 struct compat_ipc64_perm msg_perm; 181 unsigned int __unused1; 182 compat_time_t msg_stime; 183 unsigned int __unused2; 184 compat_time_t msg_rtime; 185 unsigned int __unused3; 186 compat_time_t msg_ctime; 187 compat_ulong_t msg_cbytes; 188 compat_ulong_t msg_qnum; 189 compat_ulong_t msg_qbytes; 190 compat_pid_t msg_lspid; 191 compat_pid_t msg_lrpid; 192 compat_ulong_t __unused4; 193 compat_ulong_t __unused5; 194}; 195 196struct compat_shmid64_ds { 197 struct compat_ipc64_perm shm_perm; 198 unsigned int __unused1; 199 compat_time_t shm_atime; 200 unsigned int __unused2; 201 compat_time_t shm_dtime; 202 unsigned int __unused3; 203 compat_time_t shm_ctime; 204 unsigned int __unused4; 205 compat_size_t shm_segsz; 206 compat_pid_t shm_cpid; 207 compat_pid_t shm_lpid; 208 compat_ulong_t shm_nattch; 209 compat_ulong_t __unused5; 210 compat_ulong_t __unused6; 211}; 212 213static inline int is_compat_task(void) 214{ 215 return test_thread_flag(TIF_32BIT); 216} 217 218#endif /* __KERNEL__ */ 219#endif /* _ASM_POWERPC_COMPAT_H */ 220