80 static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,  in setup_sigcontext()  argument
95 	unsigned long msr = regs->msr;  in setup_sigcontext()
146 	err |= __put_user(&sc->gp_regs, &sc->regs);  in setup_sigcontext()
147 	WARN_ON(!FULL_REGS(regs));  in setup_sigcontext()
148 	err |= __copy_to_user(&sc->gp_regs, regs, GP_REGS_SIZE);  in setup_sigcontext()
172 				 struct pt_regs *regs,  in setup_tm_sigcontexts()  argument
189 	unsigned long msr = regs->msr;  in setup_tm_sigcontexts()
192 	BUG_ON(!MSR_TM_ACTIVE(regs->msr));  in setup_tm_sigcontexts()
199 	regs->msr &= ~MSR_TS_MASK;  in setup_tm_sigcontexts()
280 	err |= __put_user(&sc->gp_regs, &sc->regs);  in setup_tm_sigcontexts()
281 	err |= __put_user(&tm_sc->gp_regs, &tm_sc->regs);  in setup_tm_sigcontexts()
282 	WARN_ON(!FULL_REGS(regs));  in setup_tm_sigcontexts()
283 	err |= __copy_to_user(&tm_sc->gp_regs, regs, GP_REGS_SIZE);  in setup_tm_sigcontexts()
301 static long restore_sigcontext(struct pt_regs *regs, sigset_t *set, int sig,  in restore_sigcontext()  argument
316 		save_r13 = regs->gpr[13];  in restore_sigcontext()
319 	err |= __copy_from_user(regs->gpr, sc->gp_regs, sizeof(regs->gpr));  in restore_sigcontext()
320 	err |= __get_user(regs->nip, &sc->gp_regs[PT_NIP]);  in restore_sigcontext()
324 		regs->msr = (regs->msr & ~MSR_LE) | (msr & MSR_LE);  in restore_sigcontext()
325 	err |= __get_user(regs->orig_gpr3, &sc->gp_regs[PT_ORIG_R3]);  in restore_sigcontext()
326 	err |= __get_user(regs->ctr, &sc->gp_regs[PT_CTR]);  in restore_sigcontext()
327 	err |= __get_user(regs->link, &sc->gp_regs[PT_LNK]);  in restore_sigcontext()
328 	err |= __get_user(regs->xer, &sc->gp_regs[PT_XER]);  in restore_sigcontext()
329 	err |= __get_user(regs->ccr, &sc->gp_regs[PT_CCR]);  in restore_sigcontext()
331 	regs->trap = 0;  in restore_sigcontext()
332 	err |= __get_user(regs->dar, &sc->gp_regs[PT_DAR]);  in restore_sigcontext()
333 	err |= __get_user(regs->dsisr, &sc->gp_regs[PT_DSISR]);  in restore_sigcontext()
334 	err |= __get_user(regs->result, &sc->gp_regs[PT_RESULT]);  in restore_sigcontext()
337 		regs->gpr[13] = save_r13;  in restore_sigcontext()
355 	regs->msr &= ~(MSR_FP | MSR_FE0 | MSR_FE1 | MSR_VEC | MSR_VSX);  in restore_sigcontext()
400 static long restore_tm_sigcontexts(struct pt_regs *regs,  in restore_tm_sigcontexts()  argument
413 	err |= __copy_from_user(regs->gpr, tm_sc->gp_regs, sizeof(regs->gpr));  in restore_tm_sigcontexts()
415 				sizeof(regs->gpr));  in restore_tm_sigcontexts()
425 	err |= __get_user(regs->nip, &tm_sc->gp_regs[PT_NIP]);  in restore_tm_sigcontexts()
435 	regs->msr = (regs->msr & ~MSR_TS_MASK) | (msr & MSR_TS_MASK);  in restore_tm_sigcontexts()
438 	regs->msr = (regs->msr & ~MSR_LE) | (msr & MSR_LE);  in restore_tm_sigcontexts()
441 	err |= __get_user(regs->ctr, &tm_sc->gp_regs[PT_CTR]);  in restore_tm_sigcontexts()
442 	err |= __get_user(regs->link, &tm_sc->gp_regs[PT_LNK]);  in restore_tm_sigcontexts()
443 	err |= __get_user(regs->xer, &tm_sc->gp_regs[PT_XER]);  in restore_tm_sigcontexts()
444 	err |= __get_user(regs->ccr, &tm_sc->gp_regs[PT_CCR]);  in restore_tm_sigcontexts()
455 	err |= __get_user(regs->trap, &sc->gp_regs[PT_TRAP]);  in restore_tm_sigcontexts()
456 	err |= __get_user(regs->dar, &sc->gp_regs[PT_DAR]);  in restore_tm_sigcontexts()
457 	err |= __get_user(regs->dsisr, &sc->gp_regs[PT_DSISR]);  in restore_tm_sigcontexts()
458 	err |= __get_user(regs->result, &sc->gp_regs[PT_RESULT]);  in restore_tm_sigcontexts()
474 	regs->msr &= ~(MSR_FP | MSR_FE0 | MSR_FE1 | MSR_VEC | MSR_VSX);  in restore_tm_sigcontexts()
541 		regs->msr |= (MSR_FP | current->thread.fpexc_mode);  in restore_tm_sigcontexts()
546 		regs->msr |= MSR_VEC;  in restore_tm_sigcontexts()
592 		    long ctx_size, long r6, long r7, long r8, struct pt_regs *regs)  in sys_swapcontext()  argument
621 		    || setup_sigcontext(&old_ctx->uc_mcontext, regs, 0, NULL, 0,  in sys_swapcontext()
649 	if (restore_sigcontext(regs, NULL, 0, &new_ctx->uc_mcontext))  in sys_swapcontext()
664 		     struct pt_regs *regs)  in sys_rt_sigreturn()  argument
666 	struct ucontext __user *uc = (struct ucontext __user *)regs->gpr[1];  in sys_rt_sigreturn()
689 		if (restore_tm_sigcontexts(regs, &uc->uc_mcontext,  in sys_rt_sigreturn()
696 	if (restore_sigcontext(regs, NULL, 1, &uc->uc_mcontext))  in sys_rt_sigreturn()
707 		printk_ratelimited(regs->msr & MSR_64BIT ? fmt64 : fmt32,  in sys_rt_sigreturn()
709 				   (long)uc, regs->nip, regs->link);  in sys_rt_sigreturn()
715 int handle_rt_signal64(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)  in handle_rt_signal64()  argument
721 	frame = get_sigframe(ksig, get_tm_stackpointer(regs), sizeof(*frame), 0);  in handle_rt_signal64()
733 	err |= __save_altstack(&frame->uc.uc_stack, regs->gpr[1]);  in handle_rt_signal64()
735 	if (MSR_TM_ACTIVE(regs->msr)) {  in handle_rt_signal64()
742 					    regs, ksig->sig,  in handle_rt_signal64()
749 		err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, ksig->sig,  in handle_rt_signal64()
762 		regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp;  in handle_rt_signal64()
767 		regs->link = (unsigned long) &frame->tramp[0];  in handle_rt_signal64()
772 	err |= put_user(regs->gpr[1], (unsigned long __user *)newsp);  in handle_rt_signal64()
776 		regs->nip = (unsigned long) ksig->ka.sa.sa_handler;  in handle_rt_signal64()
777 		regs->gpr[12] = regs->nip;  in handle_rt_signal64()
787 		err |= get_user(regs->nip, &funct_desc_ptr->entry);  in handle_rt_signal64()
788 		err |= get_user(regs->gpr[2], &funct_desc_ptr->toc);  in handle_rt_signal64()
792 	regs->msr &= ~MSR_LE;  in handle_rt_signal64()
793 	regs->msr |= (MSR_KERNEL & MSR_LE);  in handle_rt_signal64()
794 	regs->gpr[1] = newsp;  in handle_rt_signal64()
795 	regs->gpr[3] = ksig->sig;  in handle_rt_signal64()
796 	regs->result = 0;  in handle_rt_signal64()
798 		err |= get_user(regs->gpr[4], (unsigned long __user *)&frame->pinfo);  in handle_rt_signal64()
799 		err |= get_user(regs->gpr[5], (unsigned long __user *)&frame->puc);  in handle_rt_signal64()
800 		regs->gpr[6] = (unsigned long) frame;  in handle_rt_signal64()
802 		regs->gpr[4] = (unsigned long)&frame->uc.uc_mcontext;  in handle_rt_signal64()
811 		printk_ratelimited(regs->msr & MSR_64BIT ? fmt64 : fmt32,  in handle_rt_signal64()
813 				   (long)frame, regs->nip, regs->link);  in handle_rt_signal64()