^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #ifndef _ASM_POWERPC_COMPAT_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #define _ASM_POWERPC_COMPAT_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) #ifdef __KERNEL__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Architecture specific compatibility types
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <asm-generic/compat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define COMPAT_USER_HZ 100
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #ifdef __BIG_ENDIAN__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define COMPAT_UTS_MACHINE "ppc\0\0"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define COMPAT_UTS_MACHINE "ppcle\0\0"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) typedef u32 __compat_uid_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) typedef u32 __compat_gid_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) typedef u32 __compat_uid32_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) typedef u32 __compat_gid32_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) typedef u32 compat_mode_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) typedef u32 compat_dev_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) typedef s16 compat_nlink_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) typedef u16 compat_ipc_pid_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) typedef u32 compat_caddr_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) typedef __kernel_fsid_t compat_fsid_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) struct compat_stat {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) compat_dev_t st_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) compat_ino_t st_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) compat_mode_t st_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) compat_nlink_t st_nlink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) __compat_uid32_t st_uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) __compat_gid32_t st_gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) compat_dev_t st_rdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) compat_off_t st_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) compat_off_t st_blksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) compat_off_t st_blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) old_time32_t st_atime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) u32 st_atime_nsec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) old_time32_t st_mtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) u32 st_mtime_nsec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) old_time32_t st_ctime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) u32 st_ctime_nsec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) u32 __unused4[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct compat_flock {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) short l_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) short l_whence;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) compat_off_t l_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) compat_off_t l_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) compat_pid_t l_pid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #define F_GETLK64 12 /* using 'struct flock64' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #define F_SETLK64 13
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define F_SETLKW64 14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct compat_flock64 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) short l_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) short l_whence;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) compat_loff_t l_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) compat_loff_t l_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) compat_pid_t l_pid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) struct compat_statfs {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) int f_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) int f_bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) int f_blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) int f_bfree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) int f_bavail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) int f_files;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) int f_ffree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) compat_fsid_t f_fsid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) int f_namelen; /* SunOS ignores this field. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) int f_frsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) int f_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) int f_spare[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) #define COMPAT_RLIM_INFINITY 0xffffffff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) typedef u32 compat_old_sigset_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) #define _COMPAT_NSIG 64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) #define _COMPAT_NSIG_BPW 32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) typedef u32 compat_sigset_word;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) #define COMPAT_OFF_T_MAX 0x7fffffff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) static inline void __user *arch_compat_alloc_user_space(long len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) struct pt_regs *regs = current->thread.regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) unsigned long usp = regs->gpr[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) * We can't access below the stack pointer in the 32bit ABI and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * can access 288 bytes in the 64bit big-endian ABI,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) * or 512 bytes with the new ELFv2 little-endian ABI.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) if (!is_32bit_task())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) usp -= USER_REDZONE_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) return (void __user *) (usp - len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) * ipc64_perm is actually 32/64bit clean but since the compat layer refers to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) * it we may as well define it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) struct compat_ipc64_perm {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) compat_key_t key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) __compat_uid_t uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) __compat_gid_t gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) __compat_uid_t cuid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) __compat_gid_t cgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) compat_mode_t mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) unsigned int seq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) unsigned int __pad2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) unsigned long __unused1; /* yes they really are 64bit pads */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) unsigned long __unused2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) struct compat_semid64_ds {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) struct compat_ipc64_perm sem_perm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) unsigned int sem_otime_high;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) unsigned int sem_otime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) unsigned int sem_ctime_high;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) unsigned int sem_ctime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) compat_ulong_t sem_nsems;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) compat_ulong_t __unused3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) compat_ulong_t __unused4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) struct compat_msqid64_ds {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) struct compat_ipc64_perm msg_perm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) unsigned int msg_stime_high;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) unsigned int msg_stime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) unsigned int msg_rtime_high;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) unsigned int msg_rtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) unsigned int msg_ctime_high;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) unsigned int msg_ctime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) compat_ulong_t msg_cbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) compat_ulong_t msg_qnum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) compat_ulong_t msg_qbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) compat_pid_t msg_lspid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) compat_pid_t msg_lrpid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) compat_ulong_t __unused4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) compat_ulong_t __unused5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) struct compat_shmid64_ds {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) struct compat_ipc64_perm shm_perm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) unsigned int shm_atime_high;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) unsigned int shm_atime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) unsigned int shm_dtime_high;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) unsigned int shm_dtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) unsigned int shm_ctime_high;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) unsigned int shm_ctime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) unsigned int __unused4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) compat_size_t shm_segsz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) compat_pid_t shm_cpid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) compat_pid_t shm_lpid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) compat_ulong_t shm_nattch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) compat_ulong_t __unused5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) compat_ulong_t __unused6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) static inline int is_compat_task(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) return is_32bit_task();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) #endif /* __KERNEL__ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) #endif /* _ASM_POWERPC_COMPAT_H */