| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _ASM_S390X_COMPAT_H |
| #define _ASM_S390X_COMPAT_H |
| /* |
| * Architecture specific compatibility types |
| */ |
| #include <linux/types.h> |
| #include <linux/sched.h> |
| #include <linux/sched/task_stack.h> |
| #include <linux/thread_info.h> |
| |
| #define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p( \ |
| typeof(0?(__force t)0:0ULL), u64)) |
| |
| #define __SC_DELOUSE(t,v) ({ \ |
| BUILD_BUG_ON(sizeof(t) > 4 && !__TYPE_IS_PTR(t)); \ |
| (__force t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)); \ |
| }) |
| |
| #define PSW32_MASK_PER 0x40000000UL |
| #define PSW32_MASK_DAT 0x04000000UL |
| #define PSW32_MASK_IO 0x02000000UL |
| #define PSW32_MASK_EXT 0x01000000UL |
| #define PSW32_MASK_KEY 0x00F00000UL |
| #define PSW32_MASK_BASE 0x00080000UL /* Always one */ |
| #define PSW32_MASK_MCHECK 0x00040000UL |
| #define PSW32_MASK_WAIT 0x00020000UL |
| #define PSW32_MASK_PSTATE 0x00010000UL |
| #define PSW32_MASK_ASC 0x0000C000UL |
| #define PSW32_MASK_CC 0x00003000UL |
| #define PSW32_MASK_PM 0x00000f00UL |
| #define PSW32_MASK_RI 0x00000080UL |
| |
| #define PSW32_MASK_USER 0x0000FF00UL |
| |
| #define PSW32_ADDR_AMODE 0x80000000UL |
| #define PSW32_ADDR_INSN 0x7FFFFFFFUL |
| |
| #define PSW32_DEFAULT_KEY (((u32) PAGE_DEFAULT_ACC) << 20) |
| |
| #define PSW32_ASC_PRIMARY 0x00000000UL |
| #define PSW32_ASC_ACCREG 0x00004000UL |
| #define PSW32_ASC_SECONDARY 0x00008000UL |
| #define PSW32_ASC_HOME 0x0000C000UL |
| |
| #define PSW32_USER_BITS (PSW32_MASK_DAT | PSW32_MASK_IO | PSW32_MASK_EXT | \ |
| PSW32_DEFAULT_KEY | PSW32_MASK_BASE | \ |
| PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | \ |
| PSW32_ASC_PRIMARY) |
| |
| #define COMPAT_USER_HZ 100 |
| #define COMPAT_UTS_MACHINE "s390\0\0\0\0" |
| |
| typedef u32 compat_size_t; |
| typedef s32 compat_ssize_t; |
| typedef s32 compat_time_t; |
| typedef s32 compat_clock_t; |
| typedef s32 compat_pid_t; |
| typedef u16 __compat_uid_t; |
| typedef u16 __compat_gid_t; |
| typedef u32 __compat_uid32_t; |
| typedef u32 __compat_gid32_t; |
| typedef u16 compat_mode_t; |
| typedef u32 compat_ino_t; |
| typedef u16 compat_dev_t; |
| typedef s32 compat_off_t; |
| typedef s64 compat_loff_t; |
| typedef u16 compat_nlink_t; |
| typedef u16 compat_ipc_pid_t; |
| typedef s32 compat_daddr_t; |
| typedef u32 compat_caddr_t; |
| typedef __kernel_fsid_t compat_fsid_t; |
| typedef s32 compat_key_t; |
| typedef s32 compat_timer_t; |
| |
| typedef s32 compat_int_t; |
| typedef s32 compat_long_t; |
| typedef s64 compat_s64; |
| typedef u32 compat_uint_t; |
| typedef u32 compat_ulong_t; |
| typedef u64 compat_u64; |
| typedef u32 compat_uptr_t; |
| |
| typedef struct { |
| u32 mask; |
| u32 addr; |
| } __aligned(8) psw_compat_t; |
| |
| typedef struct { |
| psw_compat_t psw; |
| u32 gprs[NUM_GPRS]; |
| u32 acrs[NUM_ACRS]; |
| u32 orig_gpr2; |
| } s390_compat_regs; |
| |
| typedef struct { |
| u32 gprs_high[NUM_GPRS]; |
| } s390_compat_regs_high; |
| |
| struct compat_timespec { |
| compat_time_t tv_sec; |
| s32 tv_nsec; |
| }; |
| |
| struct compat_timeval { |
| compat_time_t tv_sec; |
| s32 tv_usec; |
| }; |
| |
| struct compat_stat { |
| compat_dev_t st_dev; |
| u16 __pad1; |
| compat_ino_t st_ino; |
| compat_mode_t st_mode; |
| compat_nlink_t st_nlink; |
| __compat_uid_t st_uid; |
| __compat_gid_t st_gid; |
| compat_dev_t st_rdev; |
| u16 __pad2; |
| u32 st_size; |
| u32 st_blksize; |
| u32 st_blocks; |
| u32 st_atime; |
| u32 st_atime_nsec; |
| u32 st_mtime; |
| u32 st_mtime_nsec; |
| u32 st_ctime; |
| u32 st_ctime_nsec; |
| u32 __unused4; |
| u32 __unused5; |
| }; |
| |
| struct compat_flock { |
| short l_type; |
| short l_whence; |
| compat_off_t l_start; |
| compat_off_t l_len; |
| compat_pid_t l_pid; |
| }; |
| |
| #define F_GETLK64 12 |
| #define F_SETLK64 13 |
| #define F_SETLKW64 14 |
| |
| struct compat_flock64 { |
| short l_type; |
| short l_whence; |
| compat_loff_t l_start; |
| compat_loff_t l_len; |
| compat_pid_t l_pid; |
| }; |
| |
| struct compat_statfs { |
| u32 f_type; |
| u32 f_bsize; |
| u32 f_blocks; |
| u32 f_bfree; |
| u32 f_bavail; |
| u32 f_files; |
| u32 f_ffree; |
| compat_fsid_t f_fsid; |
| u32 f_namelen; |
| u32 f_frsize; |
| u32 f_flags; |
| u32 f_spare[4]; |
| }; |
| |
| struct compat_statfs64 { |
| u32 f_type; |
| u32 f_bsize; |
| u64 f_blocks; |
| u64 f_bfree; |
| u64 f_bavail; |
| u64 f_files; |
| u64 f_ffree; |
| compat_fsid_t f_fsid; |
| u32 f_namelen; |
| u32 f_frsize; |
| u32 f_flags; |
| u32 f_spare[4]; |
| }; |
| |
| #define COMPAT_RLIM_INFINITY 0xffffffff |
| |
| typedef u32 compat_old_sigset_t; /* at least 32 bits */ |
| |
| #define _COMPAT_NSIG 64 |
| #define _COMPAT_NSIG_BPW 32 |
| |
| typedef u32 compat_sigset_word; |
| |
| typedef union compat_sigval { |
| compat_int_t sival_int; |
| compat_uptr_t sival_ptr; |
| } compat_sigval_t; |
| |
| typedef struct compat_siginfo { |
| int si_signo; |
| int si_errno; |
| int si_code; |
| |
| union { |
| int _pad[128/sizeof(int) - 3]; |
| |
| /* kill() */ |
| struct { |
| pid_t _pid; /* sender's pid */ |
| uid_t _uid; /* sender's uid */ |
| } _kill; |
| |
| /* POSIX.1b timers */ |
| struct { |
| compat_timer_t _tid; /* timer id */ |
| int _overrun; /* overrun count */ |
| compat_sigval_t _sigval; /* same as below */ |
| int _sys_private; /* not to be passed to user */ |
| } _timer; |
| |
| /* POSIX.1b signals */ |
| struct { |
| pid_t _pid; /* sender's pid */ |
| uid_t _uid; /* sender's uid */ |
| compat_sigval_t _sigval; |
| } _rt; |
| |
| /* SIGCHLD */ |
| struct { |
| pid_t _pid; /* which child */ |
| uid_t _uid; /* sender's uid */ |
| int _status;/* exit code */ |
| compat_clock_t _utime; |
| compat_clock_t _stime; |
| } _sigchld; |
| |
| /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ |
| struct { |
| __u32 _addr; /* faulting insn/memory ref. - pointer */ |
| } _sigfault; |
| |
| /* SIGPOLL */ |
| struct { |
| int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ |
| int _fd; |
| } _sigpoll; |
| } _sifields; |
| } compat_siginfo_t; |
| |
| /* |
| * How these fields are to be accessed. |
| */ |
| #define si_pid _sifields._kill._pid |
| #define si_uid _sifields._kill._uid |
| #define si_status _sifields._sigchld._status |
| #define si_utime _sifields._sigchld._utime |
| #define si_stime _sifields._sigchld._stime |
| #define si_value _sifields._rt._sigval |
| #define si_int _sifields._rt._sigval.sival_int |
| #define si_ptr _sifields._rt._sigval.sival_ptr |
| #define si_addr _sifields._sigfault._addr |
| #define si_band _sifields._sigpoll._band |
| #define si_fd _sifields._sigpoll._fd |
| #define si_tid _sifields._timer._tid |
| #define si_overrun _sifields._timer._overrun |
| |
| #define COMPAT_OFF_T_MAX 0x7fffffff |
| #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL |
| |
| /* |
| * A pointer passed in from user mode. This should not |
| * be used for syscall parameters, just declare them |
| * as pointers because the syscall entry code will have |
| * appropriately converted them already. |
| */ |
| |
| static inline void __user *compat_ptr(compat_uptr_t uptr) |
| { |
| return (void __user *)(unsigned long)(uptr & 0x7fffffffUL); |
| } |
| |
| static inline compat_uptr_t ptr_to_compat(void __user *uptr) |
| { |
| return (u32)(unsigned long)uptr; |
| } |
| |
| #ifdef CONFIG_COMPAT |
| |
| static inline int is_compat_task(void) |
| { |
| return test_thread_flag(TIF_31BIT); |
| } |
| |
| static inline void __user *arch_compat_alloc_user_space(long len) |
| { |
| unsigned long stack; |
| |
| stack = KSTK_ESP(current); |
| if (is_compat_task()) |
| stack &= 0x7fffffffUL; |
| return (void __user *) (stack - len); |
| } |
| |
| #endif |
| |
| struct compat_ipc64_perm { |
| compat_key_t key; |
| __compat_uid32_t uid; |
| __compat_gid32_t gid; |
| __compat_uid32_t cuid; |
| __compat_gid32_t cgid; |
| compat_mode_t mode; |
| unsigned short __pad1; |
| unsigned short seq; |
| unsigned short __pad2; |
| unsigned int __unused1; |
| unsigned int __unused2; |
| }; |
| |
| struct compat_semid64_ds { |
| struct compat_ipc64_perm sem_perm; |
| compat_time_t sem_otime; |
| compat_ulong_t __pad1; |
| compat_time_t sem_ctime; |
| compat_ulong_t __pad2; |
| compat_ulong_t sem_nsems; |
| compat_ulong_t __unused1; |
| compat_ulong_t __unused2; |
| }; |
| |
| struct compat_msqid64_ds { |
| struct compat_ipc64_perm msg_perm; |
| compat_time_t msg_stime; |
| compat_ulong_t __pad1; |
| compat_time_t msg_rtime; |
| compat_ulong_t __pad2; |
| compat_time_t msg_ctime; |
| compat_ulong_t __pad3; |
| compat_ulong_t msg_cbytes; |
| compat_ulong_t msg_qnum; |
| compat_ulong_t msg_qbytes; |
| compat_pid_t msg_lspid; |
| compat_pid_t msg_lrpid; |
| compat_ulong_t __unused1; |
| compat_ulong_t __unused2; |
| }; |
| |
| struct compat_shmid64_ds { |
| struct compat_ipc64_perm shm_perm; |
| compat_size_t shm_segsz; |
| compat_time_t shm_atime; |
| compat_ulong_t __pad1; |
| compat_time_t shm_dtime; |
| compat_ulong_t __pad2; |
| compat_time_t shm_ctime; |
| compat_ulong_t __pad3; |
| compat_pid_t shm_cpid; |
| compat_pid_t shm_lpid; |
| compat_ulong_t shm_nattch; |
| compat_ulong_t __unused1; |
| compat_ulong_t __unused2; |
| }; |
| #endif /* _ASM_S390X_COMPAT_H */ |
