s390/kernel/entry.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef _ENTRY_H
0003 #define _ENTRY_H
0004
0005 #include <linux/percpu.h>
0006 #include <linux/types.h>
0007 #include <linux/signal.h>
0008 #include <asm/extable.h>
0009 #include <asm/ptrace.h>
0010 #include <asm/idle.h>
0011
0012 extern void *restart_stack;
0013
0014 void system_call(void);
0015 void pgm_check_handler(void);
0016 void ext_int_handler(void);
0017 void io_int_handler(void);
0018 void mcck_int_handler(void);
0019 void restart_int_handler(void);
0020 void early_pgm_check_handler(void);
0021
0022 void __ret_from_fork(struct task_struct *prev, struct pt_regs *regs);
0023 void __do_pgm_check(struct pt_regs *regs);
0024 void __do_syscall(struct pt_regs *regs, int per_trap);
0025 void __do_early_pgm_check(struct pt_regs *regs);
0026
0027 void do_protection_exception(struct pt_regs *regs);
0028 void do_dat_exception(struct pt_regs *regs);
0029 void do_secure_storage_access(struct pt_regs *regs);
0030 void do_non_secure_storage_access(struct pt_regs *regs);
0031 void do_secure_storage_violation(struct pt_regs *regs);
0032 void do_report_trap(struct pt_regs *regs, int si_signo, int si_code, char *str);
0033 void kernel_stack_overflow(struct pt_regs * regs);
0034 void handle_signal32(struct ksignal *ksig, sigset_t *oldset,
0035              struct pt_regs *regs);
0036
0037 void __init init_IRQ(void);
0038 void do_io_irq(struct pt_regs *regs);
0039 void do_ext_irq(struct pt_regs *regs);
0040 void do_restart(void *arg);
0041 void __init startup_init(void);
0042 void die(struct pt_regs *regs, const char *str);
0043 int setup_profiling_timer(unsigned int multiplier);
0044 void __init time_init(void);
0045 unsigned long prepare_ftrace_return(unsigned long parent, unsigned long sp, unsigned long ip);
0046
0047 struct s390_mmap_arg_struct;
0048 struct fadvise64_64_args;
0049 struct old_sigaction;
0050
0051 long sys_rt_sigreturn(void);
0052 long sys_sigreturn(void);
0053
0054 long sys_s390_personality(unsigned int personality);
0055 long sys_s390_runtime_instr(int command, int signum);
0056 long sys_s390_guarded_storage(int command, struct gs_cb __user *);
0057 long sys_s390_pci_mmio_write(unsigned long, const void __user *, size_t);
0058 long sys_s390_pci_mmio_read(unsigned long, void __user *, size_t);
0059 long sys_s390_sthyi(unsigned long function_code, void __user *buffer, u64 __user *return_code, unsigned long flags);
0060
0061 DECLARE_PER_CPU(u64, mt_cycles[8]);
0062
0063 unsigned long stack_alloc(void);
0064 void stack_free(unsigned long stack);
0065
0066 extern char kprobes_insn_page[];
0067
0068 extern char _samode31[], _eamode31[];
0069 extern char _stext_amode31[], _etext_amode31[];
0070 extern struct exception_table_entry _start_amode31_ex_table[];
0071 extern struct exception_table_entry _stop_amode31_ex_table[];
0072
0073 #define __amode31_data __section(".amode31.data")
0074 #define __amode31_ref __section(".amode31.refs")
0075 extern long _start_amode31_refs[], _end_amode31_refs[];
0076 extern unsigned long __amode31_base;
0077
0078 #endif /* _ENTRY_H */