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 
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 
20 asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
21 asmlinkage void do_syscall_trace_exit(struct pt_regs *regs);
22 
23 void do_protection_exception(struct pt_regs *regs);
24 void do_dat_exception(struct pt_regs *regs);
25 void do_secure_storage_access(struct pt_regs *regs);
26 void do_non_secure_storage_access(struct pt_regs *regs);
27 void do_secure_storage_violation(struct pt_regs *regs);
28 
29 void addressing_exception(struct pt_regs *regs);
30 void data_exception(struct pt_regs *regs);
31 void default_trap_handler(struct pt_regs *regs);
32 void divide_exception(struct pt_regs *regs);
33 void execute_exception(struct pt_regs *regs);
34 void hfp_divide_exception(struct pt_regs *regs);
35 void hfp_overflow_exception(struct pt_regs *regs);
36 void hfp_significance_exception(struct pt_regs *regs);
37 void hfp_sqrt_exception(struct pt_regs *regs);
38 void hfp_underflow_exception(struct pt_regs *regs);
39 void illegal_op(struct pt_regs *regs);
40 void operand_exception(struct pt_regs *regs);
41 void overflow_exception(struct pt_regs *regs);
42 void privileged_op(struct pt_regs *regs);
43 void space_switch_exception(struct pt_regs *regs);
44 void special_op_exception(struct pt_regs *regs);
45 void specification_exception(struct pt_regs *regs);
46 void transaction_exception(struct pt_regs *regs);
47 void translation_exception(struct pt_regs *regs);
48 void vector_exception(struct pt_regs *regs);
49 void monitor_event_exception(struct pt_regs *regs);
50 
51 void do_per_trap(struct pt_regs *regs);
52 void do_report_trap(struct pt_regs *regs, int si_signo, int si_code, char *str);
53 void syscall_trace(struct pt_regs *regs, int entryexit);
54 void kernel_stack_overflow(struct pt_regs * regs);
55 void do_signal(struct pt_regs *regs);
56 void handle_signal32(struct ksignal *ksig, sigset_t *oldset,
57 		     struct pt_regs *regs);
58 void do_notify_resume(struct pt_regs *regs);
59 
60 void __init init_IRQ(void);
61 void do_IRQ(struct pt_regs *regs, int irq);
62 void do_restart(void);
63 void __init startup_init(void);
64 void die(struct pt_regs *regs, const char *str);
65 int setup_profiling_timer(unsigned int multiplier);
66 void __init time_init(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 extern char kprobes_insn_page[];
92 
93 #endif /* _ENTRY_H */
94