/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390X_COMPAT_H #define _ASM_S390X_COMPAT_H /* * Architecture specific compatibility types */ #include #include #include #include #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_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_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; #define COMPAT_OFF_T_MAX 0x7fffffff /* * 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 */