arch/s390/kernel/entry.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ENTRY_H
   3 #define _ENTRY_H
   4
   5 #include <linux/percpu.h>
   6 #include <linux/types.h>
   7 #include <linux/signal.h>
   8 #include <asm/ptrace.h>
   9 #include <asm/idle.h>
  10
  11 extern void *restart_stack;
  12 extern unsigned long suspend_zero_pages;
  13
  14 void system_call(void);
  15 void pgm_check_handler(void);
  16 void ext_int_handler(void);
  17 void io_int_handler(void);
  18 void mcck_int_handler(void);
  19 void restart_int_handler(void);
  20 void restart_call_handler(void);
  21
  22 asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
  23 asmlinkage void do_syscall_trace_exit(struct pt_regs *regs);
  24
  25 void do_protection_exception(struct pt_regs *regs);
  26 void do_dat_exception(struct pt_regs *regs);
  27
  28 void addressing_exception(struct pt_regs *regs);
  29 void data_exception(struct pt_regs *regs);
  30 void default_trap_handler(struct pt_regs *regs);
  31 void divide_exception(struct pt_regs *regs);
  32 void execute_exception(struct pt_regs *regs);
  33 void hfp_divide_exception(struct pt_regs *regs);
  34 void hfp_overflow_exception(struct pt_regs *regs);
  35 void hfp_significance_exception(struct pt_regs *regs);
  36 void hfp_sqrt_exception(struct pt_regs *regs);
  37 void hfp_underflow_exception(struct pt_regs *regs);
  38 void illegal_op(struct pt_regs *regs);
  39 void operand_exception(struct pt_regs *regs);
  40 void overflow_exception(struct pt_regs *regs);
  41 void privileged_op(struct pt_regs *regs);
  42 void space_switch_exception(struct pt_regs *regs);
  43 void special_op_exception(struct pt_regs *regs);
  44 void specification_exception(struct pt_regs *regs);
  45 void transaction_exception(struct pt_regs *regs);
  46 void translation_exception(struct pt_regs *regs);
  47 void vector_exception(struct pt_regs *regs);
  48
  49 void do_per_trap(struct pt_regs *regs);
  50 void do_report_trap(struct pt_regs *regs, int si_signo, int si_code, char *str);
  51 void syscall_trace(struct pt_regs *regs, int entryexit);
  52 void kernel_stack_overflow(struct pt_regs * regs);
  53 void do_signal(struct pt_regs *regs);
  54 void handle_signal32(struct ksignal *ksig, sigset_t *oldset,
  55                      struct pt_regs *regs);
  56 void do_notify_resume(struct pt_regs *regs);
  57
  58 void __init init_IRQ(void);
  59 void do_IRQ(struct pt_regs *regs, int irq);
  60 void do_restart(void);
  61 void __init startup_init_nobss(void);
  62 void __init startup_init(void);
  63 void die(struct pt_regs *regs, const char *str);
  64 int setup_profiling_timer(unsigned int multiplier);
  65 void __init time_init(void);
  66 void s390_early_resume(void);
  67 unsigned long prepare_ftrace_return(unsigned long parent, unsigned long sp, unsigned long ip);
  68
  69 struct s390_mmap_arg_struct;
  70 struct fadvise64_64_args;
  71 struct old_sigaction;
  72
  73 long sys_rt_sigreturn(void);
  74 long sys_sigreturn(void);
  75
  76 long sys_s390_personality(unsigned int personality);
  77 long sys_s390_runtime_instr(int command, int signum);
  78 long sys_s390_guarded_storage(int command, struct gs_cb __user *);
  79 long sys_s390_pci_mmio_write(unsigned long, const void __user *, size_t);
  80 long sys_s390_pci_mmio_read(unsigned long, void __user *, size_t);
  81 long sys_s390_sthyi(unsigned long function_code, void __user *buffer, u64 __user *return_code, unsigned long flags);
  82
  83 DECLARE_PER_CPU(u64, mt_cycles[8]);
  84
  85 void gs_load_bc_cb(struct pt_regs *regs);
  86 void set_fs_fixup(void);
  87
  88 unsigned long stack_alloc(void);
  89 void stack_free(unsigned long stack);
  90
  91 #endif /* _ENTRY_H */