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 void do_secure_storage_access(struct pt_regs *regs); 28 void do_non_secure_storage_access(struct pt_regs *regs); 29 30 void addressing_exception(struct pt_regs *regs); 31 void data_exception(struct pt_regs *regs); 32 void default_trap_handler(struct pt_regs *regs); 33 void divide_exception(struct pt_regs *regs); 34 void execute_exception(struct pt_regs *regs); 35 void hfp_divide_exception(struct pt_regs *regs); 36 void hfp_overflow_exception(struct pt_regs *regs); 37 void hfp_significance_exception(struct pt_regs *regs); 38 void hfp_sqrt_exception(struct pt_regs *regs); 39 void hfp_underflow_exception(struct pt_regs *regs); 40 void illegal_op(struct pt_regs *regs); 41 void operand_exception(struct pt_regs *regs); 42 void overflow_exception(struct pt_regs *regs); 43 void privileged_op(struct pt_regs *regs); 44 void space_switch_exception(struct pt_regs *regs); 45 void special_op_exception(struct pt_regs *regs); 46 void specification_exception(struct pt_regs *regs); 47 void transaction_exception(struct pt_regs *regs); 48 void translation_exception(struct pt_regs *regs); 49 void vector_exception(struct pt_regs *regs); 50 void monitor_event_exception(struct pt_regs *regs); 51 52 void do_per_trap(struct pt_regs *regs); 53 void do_report_trap(struct pt_regs *regs, int si_signo, int si_code, char *str); 54 void syscall_trace(struct pt_regs *regs, int entryexit); 55 void kernel_stack_overflow(struct pt_regs * regs); 56 void do_signal(struct pt_regs *regs); 57 void handle_signal32(struct ksignal *ksig, sigset_t *oldset, 58 struct pt_regs *regs); 59 void do_notify_resume(struct pt_regs *regs); 60 61 void __init init_IRQ(void); 62 void do_IRQ(struct pt_regs *regs, int irq); 63 void do_restart(void); 64 void __init startup_init_nobss(void); 65 void __init startup_init(void); 66 void die(struct pt_regs *regs, const char *str); 67 int setup_profiling_timer(unsigned int multiplier); 68 void __init time_init(void); 69 void s390_early_resume(void); 70 unsigned long prepare_ftrace_return(unsigned long parent, unsigned long sp, unsigned long ip); 71 72 struct s390_mmap_arg_struct; 73 struct fadvise64_64_args; 74 struct old_sigaction; 75 76 long sys_rt_sigreturn(void); 77 long sys_sigreturn(void); 78 79 long sys_s390_personality(unsigned int personality); 80 long sys_s390_runtime_instr(int command, int signum); 81 long sys_s390_guarded_storage(int command, struct gs_cb __user *); 82 long sys_s390_pci_mmio_write(unsigned long, const void __user *, size_t); 83 long sys_s390_pci_mmio_read(unsigned long, void __user *, size_t); 84 long sys_s390_sthyi(unsigned long function_code, void __user *buffer, u64 __user *return_code, unsigned long flags); 85 86 DECLARE_PER_CPU(u64, mt_cycles[8]); 87 88 void gs_load_bc_cb(struct pt_regs *regs); 89 void set_fs_fixup(void); 90 91 unsigned long stack_alloc(void); 92 void stack_free(unsigned long stack); 93 94 #endif /* _ENTRY_H */ 95