Copy the interrupt parameters from the lowcore to the pt_regs structure in entry[64].S and reduce the arguments of the low level interrupt handler to the pt_regs pointer only. In addition move the test-pending-interrupt loop from do_IRQ to entry[64].S to make sure that interrupt information is always delivered via pt_regs. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
		
			
				
	
	
		
			82 lines
		
	
	
	
		
			2.8 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			82 lines
		
	
	
	
		
			2.8 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
#ifndef _ENTRY_H
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#define _ENTRY_H
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#include <linux/types.h>
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#include <linux/signal.h>
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#include <asm/ptrace.h>
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#include <asm/cputime.h>
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extern void *restart_stack;
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extern unsigned long suspend_zero_pages;
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void system_call(void);
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void pgm_check_handler(void);
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void ext_int_handler(void);
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void io_int_handler(void);
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void mcck_int_handler(void);
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void restart_int_handler(void);
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void restart_call_handler(void);
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void psw_idle(struct s390_idle_data *, unsigned long);
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asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
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asmlinkage void do_syscall_trace_exit(struct pt_regs *regs);
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void do_protection_exception(struct pt_regs *regs);
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void do_dat_exception(struct pt_regs *regs);
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void do_asce_exception(struct pt_regs *regs);
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void addressing_exception(struct pt_regs *regs);
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void data_exception(struct pt_regs *regs);
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void default_trap_handler(struct pt_regs *regs);
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void divide_exception(struct pt_regs *regs);
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void execute_exception(struct pt_regs *regs);
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void hfp_divide_exception(struct pt_regs *regs);
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void hfp_overflow_exception(struct pt_regs *regs);
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void hfp_significance_exception(struct pt_regs *regs);
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void hfp_sqrt_exception(struct pt_regs *regs);
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void hfp_underflow_exception(struct pt_regs *regs);
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void illegal_op(struct pt_regs *regs);
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void operand_exception(struct pt_regs *regs);
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void overflow_exception(struct pt_regs *regs);
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void privileged_op(struct pt_regs *regs);
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void space_switch_exception(struct pt_regs *regs);
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void special_op_exception(struct pt_regs *regs);
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void specification_exception(struct pt_regs *regs);
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void transaction_exception(struct pt_regs *regs);
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void translation_exception(struct pt_regs *regs);
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void do_per_trap(struct pt_regs *regs);
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void syscall_trace(struct pt_regs *regs, int entryexit);
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void kernel_stack_overflow(struct pt_regs * regs);
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void do_signal(struct pt_regs *regs);
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void handle_signal32(unsigned long sig, struct k_sigaction *ka,
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		    siginfo_t *info, sigset_t *oldset, struct pt_regs *regs);
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void do_notify_resume(struct pt_regs *regs);
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struct ext_code;
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void do_extint(struct pt_regs *regs);
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void do_restart(void);
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void __init startup_init(void);
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void die(struct pt_regs *regs, const char *str);
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void __init time_init(void);
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struct s390_mmap_arg_struct;
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struct fadvise64_64_args;
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struct old_sigaction;
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long sys_mmap2(struct s390_mmap_arg_struct __user  *arg);
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long sys_s390_ipc(uint call, int first, unsigned long second,
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	     unsigned long third, void __user *ptr);
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long sys_s390_personality(unsigned int personality);
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long sys_s390_fadvise64(int fd, u32 offset_high, u32 offset_low,
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		    size_t len, int advice);
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long sys_s390_fadvise64_64(struct fadvise64_64_args __user *args);
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long sys_s390_fallocate(int fd, int mode, loff_t offset, u32 len_high,
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			u32 len_low);
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long sys_sigreturn(void);
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long sys_rt_sigreturn(void);
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long sys32_sigreturn(void);
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long sys32_rt_sigreturn(void);
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#endif /* _ENTRY_H */
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