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/extable.h>
9#include <asm/ptrace.h>
10#include <asm/idle.h>
11
12extern void *restart_stack;
13
14void system_call(void);
15void pgm_check_handler(void);
16void ext_int_handler(void);
17void io_int_handler(void);
18void mcck_int_handler(void);
19void restart_int_handler(void);
20void early_pgm_check_handler(void);
21
22struct task_struct *__switch_to_asm(struct task_struct *prev, struct task_struct *next);
23void __ret_from_fork(struct task_struct *prev, struct pt_regs *regs);
24void __do_pgm_check(struct pt_regs *regs);
25void __do_syscall(struct pt_regs *regs, int per_trap);
26void __do_early_pgm_check(struct pt_regs *regs);
27
28void do_protection_exception(struct pt_regs *regs);
29void do_dat_exception(struct pt_regs *regs);
30void do_secure_storage_access(struct pt_regs *regs);
31void do_non_secure_storage_access(struct pt_regs *regs);
32void do_secure_storage_violation(struct pt_regs *regs);
33void do_report_trap(struct pt_regs *regs, int si_signo, int si_code, char *str);
34void kernel_stack_overflow(struct pt_regs * regs);
35void handle_signal32(struct ksignal *ksig, sigset_t *oldset,
36		     struct pt_regs *regs);
37
38void do_io_irq(struct pt_regs *regs);
39void do_ext_irq(struct pt_regs *regs);
40void do_restart(void *arg);
41void __init startup_init(void);
42void die(struct pt_regs *regs, const char *str);
43int setup_profiling_timer(unsigned int multiplier);
44unsigned long prepare_ftrace_return(unsigned long parent, unsigned long sp, unsigned long ip);
45
46struct s390_mmap_arg_struct;
47struct fadvise64_64_args;
48struct old_sigaction;
49
50long sys_rt_sigreturn(void);
51long sys_sigreturn(void);
52
53long sys_s390_personality(unsigned int personality);
54long sys_s390_runtime_instr(int command, int signum);
55long sys_s390_guarded_storage(int command, struct gs_cb __user *);
56long sys_s390_pci_mmio_write(unsigned long, const void __user *, size_t);
57long sys_s390_pci_mmio_read(unsigned long, void __user *, size_t);
58long sys_s390_sthyi(unsigned long function_code, void __user *buffer, u64 __user *return_code, unsigned long flags);
59
60DECLARE_PER_CPU(u64, mt_cycles[8]);
61
62unsigned long stack_alloc(void);
63void stack_free(unsigned long stack);
64
65extern char kprobes_insn_page[];
66
67extern char _samode31[], _eamode31[];
68extern char _stext_amode31[], _etext_amode31[];
69extern struct exception_table_entry _start_amode31_ex_table[];
70extern struct exception_table_entry _stop_amode31_ex_table[];
71
72#define __amode31_data __section(".amode31.data")
73#define __amode31_ref __section(".amode31.refs")
74extern long _start_amode31_refs[], _end_amode31_refs[];
75
76#endif /* _ENTRY_H */
77