1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_S390X_S390_H 3 #define _ASM_S390X_S390_H 4 5 #include <linux/compat.h> 6 #include <linux/socket.h> 7 #include <linux/syscalls.h> 8 #include <asm/ptrace.h> 9 10 /* 11 * Macro that masks the high order bit of a 32 bit pointer and 12 * converts it to a 64 bit pointer. 13 */ 14 #define A(__x) ((unsigned long)((__x) & 0x7FFFFFFFUL)) 15 #define AA(__x) ((unsigned long)(__x)) 16 17 /* Now 32bit compatibility types */ 18 struct ipc_kludge_32 { 19 __u32 msgp; /* pointer */ 20 __s32 msgtyp; 21 }; 22 23 /* asm/sigcontext.h */ 24 typedef union { 25 __u64 d; 26 __u32 f; 27 } freg_t32; 28 29 typedef struct { 30 unsigned int fpc; 31 unsigned int pad; 32 freg_t32 fprs[__NUM_FPRS]; 33 } _s390_fp_regs32; 34 35 typedef struct { 36 psw_t32 psw; 37 __u32 gprs[__NUM_GPRS]; 38 __u32 acrs[__NUM_ACRS]; 39 } _s390_regs_common32; 40 41 typedef struct { 42 _s390_regs_common32 regs; 43 _s390_fp_regs32 fpregs; 44 } _sigregs32; 45 46 typedef struct { 47 __u32 gprs_high[__NUM_GPRS]; 48 __u64 vxrs_low[__NUM_VXRS_LOW]; 49 __vector128 vxrs_high[__NUM_VXRS_HIGH]; 50 __u8 __reserved[128]; 51 } _sigregs_ext32; 52 53 #define _SIGCONTEXT_NSIG32 64 54 #define _SIGCONTEXT_NSIG_BPW32 32 55 #define __SIGNAL_FRAMESIZE32 96 56 #define _SIGMASK_COPY_SIZE32 (sizeof(u32) * 2) 57 58 struct sigcontext32 { 59 __u32 oldmask[_COMPAT_NSIG_WORDS]; 60 __u32 sregs; /* pointer */ 61 }; 62 63 /* asm/signal.h */ 64 65 /* asm/ucontext.h */ 66 struct ucontext32 { 67 __u32 uc_flags; 68 __u32 uc_link; /* pointer */ 69 compat_stack_t uc_stack; 70 _sigregs32 uc_mcontext; 71 compat_sigset_t uc_sigmask; 72 /* Allow for uc_sigmask growth. Glibc uses a 1024-bit sigset_t. */ 73 unsigned char __unused[128 - sizeof(compat_sigset_t)]; 74 _sigregs_ext32 uc_mcontext_ext; 75 }; 76 77 struct stat64_emu31; 78 struct mmap_arg_struct_emu31; 79 struct fadvise64_64_args; 80 81 long compat_sys_s390_truncate64(const char __user *path, u32 high, u32 low); 82 long compat_sys_s390_ftruncate64(unsigned int fd, u32 high, u32 low); 83 long compat_sys_s390_pread64(unsigned int fd, char __user *ubuf, compat_size_t count, u32 high, u32 low); 84 long compat_sys_s390_pwrite64(unsigned int fd, const char __user *ubuf, compat_size_t count, u32 high, u32 low); 85 long compat_sys_s390_readahead(int fd, u32 high, u32 low, s32 count); 86 long compat_sys_s390_stat64(const char __user *filename, struct stat64_emu31 __user *statbuf); 87 long compat_sys_s390_lstat64(const char __user *filename, struct stat64_emu31 __user *statbuf); 88 long compat_sys_s390_fstat64(unsigned int fd, struct stat64_emu31 __user *statbuf); 89 long compat_sys_s390_fstatat64(unsigned int dfd, const char __user *filename, struct stat64_emu31 __user *statbuf, int flag); 90 long compat_sys_s390_old_mmap(struct mmap_arg_struct_emu31 __user *arg); 91 long compat_sys_s390_mmap2(struct mmap_arg_struct_emu31 __user *arg); 92 long compat_sys_s390_read(unsigned int fd, char __user *buf, compat_size_t count); 93 long compat_sys_s390_write(unsigned int fd, const char __user *buf, compat_size_t count); 94 long compat_sys_s390_fadvise64(int fd, u32 high, u32 low, compat_size_t len, int advise); 95 long compat_sys_s390_fadvise64_64(struct fadvise64_64_args __user *args); 96 long compat_sys_s390_sync_file_range(int fd, u32 offhigh, u32 offlow, u32 nhigh, u32 nlow, unsigned int flags); 97 long compat_sys_s390_fallocate(int fd, int mode, u32 offhigh, u32 offlow, u32 lenhigh, u32 lenlow); 98 long compat_sys_sigreturn(void); 99 long compat_sys_rt_sigreturn(void); 100 101 #endif /* _ASM_S390X_S390_H */ 102