diff options
Diffstat (limited to 'arch/s390/kernel/entry.h')
-rw-r--r-- | arch/s390/kernel/entry.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h new file mode 100644 index 0000000000..9f41853f36 --- /dev/null +++ b/arch/s390/kernel/entry.h @@ -0,0 +1,75 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ENTRY_H +#define _ENTRY_H + +#include <linux/percpu.h> +#include <linux/types.h> +#include <linux/signal.h> +#include <asm/extable.h> +#include <asm/ptrace.h> +#include <asm/idle.h> + +extern void *restart_stack; + +void system_call(void); +void pgm_check_handler(void); +void ext_int_handler(void); +void io_int_handler(void); +void mcck_int_handler(void); +void restart_int_handler(void); +void early_pgm_check_handler(void); + +void __ret_from_fork(struct task_struct *prev, struct pt_regs *regs); +void __do_pgm_check(struct pt_regs *regs); +void __do_syscall(struct pt_regs *regs, int per_trap); +void __do_early_pgm_check(struct pt_regs *regs); + +void do_protection_exception(struct pt_regs *regs); +void do_dat_exception(struct pt_regs *regs); +void do_secure_storage_access(struct pt_regs *regs); +void do_non_secure_storage_access(struct pt_regs *regs); +void do_secure_storage_violation(struct pt_regs *regs); +void do_report_trap(struct pt_regs *regs, int si_signo, int si_code, char *str); +void kernel_stack_overflow(struct pt_regs * regs); +void handle_signal32(struct ksignal *ksig, sigset_t *oldset, + struct pt_regs *regs); + +void do_io_irq(struct pt_regs *regs); +void do_ext_irq(struct pt_regs *regs); +void do_restart(void *arg); +void __init startup_init(void); +void die(struct pt_regs *regs, const char *str); +int setup_profiling_timer(unsigned int multiplier); +unsigned long prepare_ftrace_return(unsigned long parent, unsigned long sp, unsigned long ip); + +struct s390_mmap_arg_struct; +struct fadvise64_64_args; +struct old_sigaction; + +long sys_rt_sigreturn(void); +long sys_sigreturn(void); + +long sys_s390_personality(unsigned int personality); +long sys_s390_runtime_instr(int command, int signum); +long sys_s390_guarded_storage(int command, struct gs_cb __user *); +long sys_s390_pci_mmio_write(unsigned long, const void __user *, size_t); +long sys_s390_pci_mmio_read(unsigned long, void __user *, size_t); +long sys_s390_sthyi(unsigned long function_code, void __user *buffer, u64 __user *return_code, unsigned long flags); + +DECLARE_PER_CPU(u64, mt_cycles[8]); + +unsigned long stack_alloc(void); +void stack_free(unsigned long stack); + +extern char kprobes_insn_page[]; + +extern char _samode31[], _eamode31[]; +extern char _stext_amode31[], _etext_amode31[]; +extern struct exception_table_entry _start_amode31_ex_table[]; +extern struct exception_table_entry _stop_amode31_ex_table[]; + +#define __amode31_data __section(".amode31.data") +#define __amode31_ref __section(".amode31.refs") +extern long _start_amode31_refs[], _end_amode31_refs[]; + +#endif /* _ENTRY_H */ |