xref: /linux/arch/s390/kernel/entry.h (revision e58e871becec2d3b04ed91c0c16fe8deac9c9dfa)
1 #ifndef _ENTRY_H
2 #define _ENTRY_H
3 
4 #include <linux/percpu.h>
5 #include <linux/types.h>
6 #include <linux/signal.h>
7 #include <asm/ptrace.h>
8 #include <asm/idle.h>
9 
10 extern void *restart_stack;
11 extern unsigned long suspend_zero_pages;
12 
13 void system_call(void);
14 void pgm_check_handler(void);
15 void ext_int_handler(void);
16 void io_int_handler(void);
17 void mcck_int_handler(void);
18 void restart_int_handler(void);
19 void restart_call_handler(void);
20 
21 asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
22 asmlinkage void do_syscall_trace_exit(struct pt_regs *regs);
23 
24 void do_protection_exception(struct pt_regs *regs);
25 void do_dat_exception(struct pt_regs *regs);
26 
27 void addressing_exception(struct pt_regs *regs);
28 void data_exception(struct pt_regs *regs);
29 void default_trap_handler(struct pt_regs *regs);
30 void divide_exception(struct pt_regs *regs);
31 void execute_exception(struct pt_regs *regs);
32 void hfp_divide_exception(struct pt_regs *regs);
33 void hfp_overflow_exception(struct pt_regs *regs);
34 void hfp_significance_exception(struct pt_regs *regs);
35 void hfp_sqrt_exception(struct pt_regs *regs);
36 void hfp_underflow_exception(struct pt_regs *regs);
37 void illegal_op(struct pt_regs *regs);
38 void operand_exception(struct pt_regs *regs);
39 void overflow_exception(struct pt_regs *regs);
40 void privileged_op(struct pt_regs *regs);
41 void space_switch_exception(struct pt_regs *regs);
42 void special_op_exception(struct pt_regs *regs);
43 void specification_exception(struct pt_regs *regs);
44 void transaction_exception(struct pt_regs *regs);
45 void translation_exception(struct pt_regs *regs);
46 void vector_exception(struct pt_regs *regs);
47 
48 void do_per_trap(struct pt_regs *regs);
49 void do_report_trap(struct pt_regs *regs, int si_signo, int si_code, char *str);
50 void syscall_trace(struct pt_regs *regs, int entryexit);
51 void kernel_stack_overflow(struct pt_regs * regs);
52 void do_signal(struct pt_regs *regs);
53 void handle_signal32(struct ksignal *ksig, sigset_t *oldset,
54 		     struct pt_regs *regs);
55 void do_notify_resume(struct pt_regs *regs);
56 
57 void __init init_IRQ(void);
58 void do_IRQ(struct pt_regs *regs, int irq);
59 void do_restart(void);
60 void __init startup_init(void);
61 void die(struct pt_regs *regs, const char *str);
62 int setup_profiling_timer(unsigned int multiplier);
63 void __init time_init(void);
64 int pfn_is_nosave(unsigned long);
65 void s390_early_resume(void);
66 unsigned long prepare_ftrace_return(unsigned long parent, unsigned long ip);
67 
68 struct s390_mmap_arg_struct;
69 struct fadvise64_64_args;
70 struct old_sigaction;
71 
72 long sys_rt_sigreturn(void);
73 long sys_sigreturn(void);
74 
75 long sys_s390_personality(unsigned int personality);
76 long sys_s390_runtime_instr(int command, int signum);
77 long sys_s390_guarded_storage(int command, struct gs_cb __user *);
78 long sys_s390_pci_mmio_write(unsigned long, const void __user *, size_t);
79 long sys_s390_pci_mmio_read(unsigned long, void __user *, size_t);
80 
81 DECLARE_PER_CPU(u64, mt_cycles[8]);
82 
83 void verify_facilities(void);
84 void gs_load_bc_cb(struct pt_regs *regs);
85 void set_fs_fixup(void);
86 
87 #endif /* _ENTRY_H */
88