55 flush_window_regs_user(struct pt_regs *regs)  in flush_window_regs_user()  argument
57 	const unsigned long ws = regs->windowstart;  in flush_window_regs_user()
58 	const unsigned long wb = regs->windowbase;  in flush_window_regs_user()
66 	if (regs->wmask == 1)  in flush_window_regs_user()
72 	base = (XCHAL_NUM_AREGS / 4) - (regs->wmask >> 4);  in flush_window_regs_user()
76 	if ((regs->wmask & 2) == 0)  in flush_window_regs_user()
77 		if (__get_user(sp, (int*)(regs->areg[base * 4 + 1] - 12)))  in flush_window_regs_user()
94 					   &regs->areg[(base + 1) * 4], 16))  in flush_window_regs_user()
100 					   &regs->areg[(base + 1) * 4], 32))  in flush_window_regs_user()
107 		sp = regs->areg[((base + inc) * 4 + 1) % XCHAL_NUM_AREGS];  in flush_window_regs_user()
108 		if (copy_to_user((void*)(sp - 16), &regs->areg[base * 4], 16))  in flush_window_regs_user()
113 		sp = regs->areg[base * 4 + 1];  in flush_window_regs_user()
117 	regs->wmask = 1;  in flush_window_regs_user()
118 	regs->windowstart = 1 << wb;  in flush_window_regs_user()
135 setup_sigcontext(struct rt_sigframe __user *frame, struct pt_regs *regs)  in setup_sigcontext()  argument
141 #define COPY(x)	err |= __put_user(regs->x, &sc->sc_##x)  in setup_sigcontext()
150 	err |= flush_window_regs_user(regs);  in setup_sigcontext()
151 	err |= __copy_to_user (sc->sc_a, regs->areg, 16 * 4);  in setup_sigcontext()
163 	err |= __copy_to_user(&frame->xtregs.opt, &regs->xtregs_opt,  in setup_sigcontext()
174 restore_sigcontext(struct pt_regs *regs, struct rt_sigframe __user *frame)  in restore_sigcontext()  argument
181 #define COPY(x)	err |= __get_user(regs->x, &sc->sc_##x)  in restore_sigcontext()
191 	regs->wmask = 1;  in restore_sigcontext()
192 	regs->windowbase = 0;  in restore_sigcontext()
193 	regs->windowstart = 1;  in restore_sigcontext()
195 	regs->syscall = -1;		/* disable syscall checks */  in restore_sigcontext()
202 	regs->ps = (regs->ps & ~PS_CALLINC_MASK) | (ps & PS_CALLINC_MASK);  in restore_sigcontext()
206 	if ((regs->lcount > 0)  in restore_sigcontext()
207 	    && ((regs->lbeg > TASK_SIZE) || (regs->lend > TASK_SIZE)) )  in restore_sigcontext()
210 	err |= __copy_from_user(regs->areg, sc->sc_a, 16 * 4);  in restore_sigcontext()
229 	err |= __copy_from_user(&regs->xtregs_opt, &frame->xtregs.opt,  in restore_sigcontext()
241 				    long a4, long a5, struct pt_regs *regs)  in xtensa_rt_sigreturn()  argument
250 	if (regs->depc > 64)  in xtensa_rt_sigreturn()
253 	frame = (struct rt_sigframe __user *) regs->areg[1];  in xtensa_rt_sigreturn()
263 	if (restore_sigcontext(regs, frame))  in xtensa_rt_sigreturn()
266 	ret = regs->areg[2];  in xtensa_rt_sigreturn()
335 		       struct pt_regs *regs)  in setup_frame()  argument
341 	sp = regs->areg[1];  in setup_frame()
349 	if (regs->depc > 64)  in setup_frame()
364 	err |= __save_altstack(&frame->uc.uc_stack, regs->areg[1]);  in setup_frame()
365 	err |= setup_sigcontext(frame, regs);  in setup_frame()
388 	tp = regs->threadptr;  in setup_frame()
389 	start_thread(regs, (unsigned long) ksig->ka.sa.sa_handler,  in setup_frame()
395 	regs->areg[4] = (((unsigned long) ra) & 0x3fffffff) | 0x40000000;  in setup_frame()
396 	regs->areg[6] = (unsigned long) sig;  in setup_frame()
397 	regs->areg[7] = (unsigned long) &frame->info;  in setup_frame()
398 	regs->areg[8] = (unsigned long) &frame->uc;  in setup_frame()
399 	regs->threadptr = tp;  in setup_frame()
403 		current->comm, current->pid, sig, frame, regs->pc);  in setup_frame()
418 static void do_signal(struct pt_regs *regs)  in do_signal()  argument
429 		if ((signed)regs->syscall >= 0) {  in do_signal()
433 			switch (regs->areg[2]) {  in do_signal()
436 					regs->areg[2] = -EINTR;  in do_signal()
441 						regs->areg[2] = -EINTR;  in do_signal()
446 					regs->areg[2] = regs->syscall;  in do_signal()
447 					regs->pc -= 3;  in do_signal()
452 					if (regs->areg[2] != 0)  in do_signal()
459 		ret = setup_frame(&ksig, sigmask_to_save(), regs);  in do_signal()
468 	if ((signed) regs->syscall >= 0) {  in do_signal()
470 		switch (regs->areg[2]) {  in do_signal()
474 			regs->areg[2] = regs->syscall;  in do_signal()
475 			regs->pc -= 3;  in do_signal()
478 			regs->areg[2] = __NR_restart_syscall;  in do_signal()
479 			regs->pc -= 3;  in do_signal()
492 void do_notify_resume(struct pt_regs *regs)  in do_notify_resume()  argument
495 		do_signal(regs);  in do_notify_resume()
498 		tracehook_notify_resume(regs);  in do_notify_resume()