167 int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)  in setup_sigcontext()  argument
173 	err |= __put_user(regs->cp0_epc, &sc->sc_pc);  in setup_sigcontext()
177 		err |= __put_user(regs->regs[i], &sc->sc_regs[i]);  in setup_sigcontext()
180 	err |= __put_user(regs->acx, &sc->sc_acx);  in setup_sigcontext()
182 	err |= __put_user(regs->hi, &sc->sc_mdhi);  in setup_sigcontext()
183 	err |= __put_user(regs->lo, &sc->sc_mdlo);  in setup_sigcontext()
238 int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)  in restore_sigcontext()  argument
248 	err |= __get_user(regs->cp0_epc, &sc->sc_pc);  in restore_sigcontext()
251 	err |= __get_user(regs->acx, &sc->sc_acx);  in restore_sigcontext()
253 	err |= __get_user(regs->hi, &sc->sc_mdhi);  in restore_sigcontext()
254 	err |= __get_user(regs->lo, &sc->sc_mdlo);  in restore_sigcontext()
266 		err |= __get_user(regs->regs[i], &sc->sc_regs[i]);  in restore_sigcontext()
283 void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,  in get_sigframe()  argument
289 	sp = regs->regs[29];  in get_sigframe()
356 asmlinkage void sys_sigreturn(nabi_no_regargs struct pt_regs regs)  in sys_sigreturn()  argument
362 	frame = (struct sigframe __user *) regs.regs[29];  in sys_sigreturn()
370 	sig = restore_sigcontext(&regs, &frame->sf_sc);  in sys_sigreturn()
383 		:"r" (&regs));  in sys_sigreturn()
391 asmlinkage void sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs)  in sys_rt_sigreturn()  argument
397 	frame = (struct rt_sigframe __user *) regs.regs[29];  in sys_rt_sigreturn()
405 	sig = restore_sigcontext(&regs, &frame->rs_uc.uc_mcontext);  in sys_rt_sigreturn()
421 		:"r" (&regs));  in sys_rt_sigreturn()
430 		       struct pt_regs *regs, sigset_t *set)  in setup_frame()  argument
435 	frame = get_sigframe(ksig, regs, sizeof(*frame));  in setup_frame()
439 	err |= setup_sigcontext(regs, &frame->sf_sc);  in setup_frame()
454 	regs->regs[ 4] = ksig->sig;  in setup_frame()
455 	regs->regs[ 5] = 0;  in setup_frame()
456 	regs->regs[ 6] = (unsigned long) &frame->sf_sc;  in setup_frame()
457 	regs->regs[29] = (unsigned long) frame;  in setup_frame()
458 	regs->regs[31] = (unsigned long) sig_return;  in setup_frame()
459 	regs->cp0_epc = regs->regs[25] = (unsigned long) ksig->ka.sa.sa_handler;  in setup_frame()
463 	       frame, regs->cp0_epc, regs->regs[31]);  in setup_frame()
469 			  struct pt_regs *regs, sigset_t *set)  in setup_rt_frame()  argument
474 	frame = get_sigframe(ksig, regs, sizeof(*frame));  in setup_rt_frame()
484 	err |= __save_altstack(&frame->rs_uc.uc_stack, regs->regs[29]);  in setup_rt_frame()
485 	err |= setup_sigcontext(regs, &frame->rs_uc.uc_mcontext);  in setup_rt_frame()
501 	regs->regs[ 4] = ksig->sig;  in setup_rt_frame()
502 	regs->regs[ 5] = (unsigned long) &frame->rs_info;  in setup_rt_frame()
503 	regs->regs[ 6] = (unsigned long) &frame->rs_uc;  in setup_rt_frame()
504 	regs->regs[29] = (unsigned long) frame;  in setup_rt_frame()
505 	regs->regs[31] = (unsigned long) sig_return;  in setup_rt_frame()
506 	regs->cp0_epc = regs->regs[25] = (unsigned long) ksig->ka.sa.sa_handler;  in setup_rt_frame()
510 	       frame, regs->cp0_epc, regs->regs[31]);  in setup_rt_frame()
526 static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)  in handle_signal()  argument
541 	if (regs->regs[0]) {  in handle_signal()
542 		switch(regs->regs[2]) {  in handle_signal()
545 			regs->regs[2] = EINTR;  in handle_signal()
549 				regs->regs[2] = EINTR;  in handle_signal()
554 			regs->regs[7] = regs->regs[26];  in handle_signal()
555 			regs->regs[2] = regs->regs[0];  in handle_signal()
556 			regs->cp0_epc -= 4;  in handle_signal()
559 		regs->regs[0] = 0;		/* Don't deal with this again.	*/  in handle_signal()
564 					  ksig, regs, oldset);  in handle_signal()
567 				       regs, oldset);  in handle_signal()
572 static void do_signal(struct pt_regs *regs)  in do_signal()  argument
578 		handle_signal(&ksig, regs);  in do_signal()
582 	if (regs->regs[0]) {  in do_signal()
583 		switch (regs->regs[2]) {  in do_signal()
587 			regs->regs[2] = regs->regs[0];  in do_signal()
588 			regs->regs[7] = regs->regs[26];  in do_signal()
589 			regs->cp0_epc -= 4;  in do_signal()
593 			regs->regs[2] = current->thread.abi->restart;  in do_signal()
594 			regs->regs[7] = regs->regs[26];  in do_signal()
595 			regs->cp0_epc -= 4;  in do_signal()
598 		regs->regs[0] = 0;	/* Don't deal with this again.	*/  in do_signal()
612 asmlinkage void do_notify_resume(struct pt_regs *regs, void *unused,  in do_notify_resume()  argument
621 		do_signal(regs);  in do_notify_resume()
625 		tracehook_notify_resume(regs);  in do_notify_resume()