46 static int store_updates_sp(struct pt_regs *regs)  in store_updates_sp()  argument
50 	if (get_user(inst, (unsigned int __user *)regs->pc))  in store_updates_sp()
67 void bad_page_fault(struct pt_regs *regs, unsigned long address, int sig)  in bad_page_fault()  argument
72 	fixup = search_exception_tables(regs->pc);  in bad_page_fault()
74 		regs->pc = fixup->fixup;  in bad_page_fault()
79 	die("kernel access of bad area", regs, sig);  in bad_page_fault()
86 void do_page_fault(struct pt_regs *regs, unsigned long address,  in do_page_fault()  argument
97 	regs->ear = address;  in do_page_fault()
98 	regs->esr = error_code;  in do_page_fault()
101 	if (unlikely(kernel_mode(regs) && (address >= TASK_SIZE))) {  in do_page_fault()
103 		_exception(SIGSEGV, regs, code, address);  in do_page_fault()
111 		if (kernel_mode(regs))  in do_page_fault()
119 		       regs->r15, regs->msr);  in do_page_fault()
120 		die("Weird page fault", regs, SIGSEGV);  in do_page_fault()
123 	if (user_mode(regs))  in do_page_fault()
142 		if (kernel_mode(regs) && !search_exception_tables(regs->pc))  in do_page_fault()
174 		struct pt_regs *uregs = current->thread.regs;  in do_page_fault()
191 			&& (kernel_mode(regs) || !store_updates_sp(regs)))  in do_page_fault()
270 	if (user_mode(regs)) {  in do_page_fault()
271 		_exception(SIGSEGV, regs, code, address);  in do_page_fault()
280 	bad_page_fault(regs, address, SIGSEGV);  in do_page_fault()
289 	if (!user_mode(regs))  in do_page_fault()
290 		bad_page_fault(regs, address, SIGKILL);  in do_page_fault()
297 	if (user_mode(regs)) {  in do_page_fault()
305 	bad_page_fault(regs, address, SIGBUS);  in do_page_fault()