93 static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,  in setup_sigcontext()  argument
108 	unsigned long msr = regs->msr;  in setup_sigcontext()
159 	err |= __put_user(&sc->gp_regs, &sc->regs);  in setup_sigcontext()
160 	WARN_ON(!FULL_REGS(regs));  in setup_sigcontext()
161 	err |= __copy_to_user(&sc->gp_regs, regs, GP_REGS_SIZE);  in setup_sigcontext()
185 				 struct pt_regs *regs,  in setup_tm_sigcontexts()  argument
200 	unsigned long msr = regs->msr;  in setup_tm_sigcontexts()
203 	BUG_ON(!MSR_TM_ACTIVE(regs->msr));  in setup_tm_sigcontexts()
210 	regs->msr &= ~MSR_TS_MASK;  in setup_tm_sigcontexts()
291 	err |= __put_user(&sc->gp_regs, &sc->regs);  in setup_tm_sigcontexts()
292 	err |= __put_user(&tm_sc->gp_regs, &tm_sc->regs);  in setup_tm_sigcontexts()
293 	WARN_ON(!FULL_REGS(regs));  in setup_tm_sigcontexts()
294 	err |= __copy_to_user(&tm_sc->gp_regs, regs, GP_REGS_SIZE);  in setup_tm_sigcontexts()
312 static long restore_sigcontext(struct pt_regs *regs, sigset_t *set, int sig,  in restore_sigcontext()  argument
327 		save_r13 = regs->gpr[13];  in restore_sigcontext()
330 	err |= __copy_from_user(regs->gpr, sc->gp_regs, sizeof(regs->gpr));  in restore_sigcontext()
331 	err |= __get_user(regs->nip, &sc->gp_regs[PT_NIP]);  in restore_sigcontext()
335 		regs->msr = (regs->msr & ~MSR_LE) | (msr & MSR_LE);  in restore_sigcontext()
336 	err |= __get_user(regs->orig_gpr3, &sc->gp_regs[PT_ORIG_R3]);  in restore_sigcontext()
337 	err |= __get_user(regs->ctr, &sc->gp_regs[PT_CTR]);  in restore_sigcontext()
338 	err |= __get_user(regs->link, &sc->gp_regs[PT_LNK]);  in restore_sigcontext()
339 	err |= __get_user(regs->xer, &sc->gp_regs[PT_XER]);  in restore_sigcontext()
340 	err |= __get_user(regs->ccr, &sc->gp_regs[PT_CCR]);  in restore_sigcontext()
342 	regs->trap = 0;  in restore_sigcontext()
343 	err |= __get_user(regs->dar, &sc->gp_regs[PT_DAR]);  in restore_sigcontext()
344 	err |= __get_user(regs->dsisr, &sc->gp_regs[PT_DSISR]);  in restore_sigcontext()
345 	err |= __get_user(regs->result, &sc->gp_regs[PT_RESULT]);  in restore_sigcontext()
348 		regs->gpr[13] = save_r13;  in restore_sigcontext()
366 	regs->msr &= ~(MSR_FP | MSR_FE0 | MSR_FE1 | MSR_VEC | MSR_VSX);  in restore_sigcontext()
411 static long restore_tm_sigcontexts(struct pt_regs *regs,  in restore_tm_sigcontexts()  argument
424 	err |= __copy_from_user(regs->gpr, tm_sc->gp_regs, sizeof(regs->gpr));  in restore_tm_sigcontexts()
426 				sizeof(regs->gpr));  in restore_tm_sigcontexts()
436 	err |= __get_user(regs->nip, &tm_sc->gp_regs[PT_NIP]);  in restore_tm_sigcontexts()
446 	regs->msr = (regs->msr & ~MSR_TS_MASK) | (msr & MSR_TS_MASK);  in restore_tm_sigcontexts()
449 	regs->msr = (regs->msr & ~MSR_LE) | (msr & MSR_LE);  in restore_tm_sigcontexts()
452 	err |= __get_user(regs->ctr, &tm_sc->gp_regs[PT_CTR]);  in restore_tm_sigcontexts()
453 	err |= __get_user(regs->link, &tm_sc->gp_regs[PT_LNK]);  in restore_tm_sigcontexts()
454 	err |= __get_user(regs->xer, &tm_sc->gp_regs[PT_XER]);  in restore_tm_sigcontexts()
455 	err |= __get_user(regs->ccr, &tm_sc->gp_regs[PT_CCR]);  in restore_tm_sigcontexts()
466 	err |= __get_user(regs->trap, &sc->gp_regs[PT_TRAP]);  in restore_tm_sigcontexts()
467 	err |= __get_user(regs->dar, &sc->gp_regs[PT_DAR]);  in restore_tm_sigcontexts()
468 	err |= __get_user(regs->dsisr, &sc->gp_regs[PT_DSISR]);  in restore_tm_sigcontexts()
469 	err |= __get_user(regs->result, &sc->gp_regs[PT_RESULT]);  in restore_tm_sigcontexts()
485 	regs->msr &= ~(MSR_FP | MSR_FE0 | MSR_FE1 | MSR_VEC | MSR_VSX);  in restore_tm_sigcontexts()
552 		regs->msr |= (MSR_FP | current->thread.fpexc_mode);  in restore_tm_sigcontexts()
557 		regs->msr |= MSR_VEC;  in restore_tm_sigcontexts()
603 		    long ctx_size, long r6, long r7, long r8, struct pt_regs *regs)  in sys_swapcontext()  argument
632 		    || setup_sigcontext(&old_ctx->uc_mcontext, regs, 0, NULL, 0,  in sys_swapcontext()
660 	if (restore_sigcontext(regs, NULL, 0, &new_ctx->uc_mcontext))  in sys_swapcontext()
675 		     struct pt_regs *regs)  in sys_rt_sigreturn()  argument
677 	struct ucontext __user *uc = (struct ucontext __user *)regs->gpr[1];  in sys_rt_sigreturn()
700 		if (restore_tm_sigcontexts(regs, &uc->uc_mcontext,  in sys_rt_sigreturn()
707 	if (restore_sigcontext(regs, NULL, 1, &uc->uc_mcontext))  in sys_rt_sigreturn()
718 		printk_ratelimited(regs->msr & MSR_64BIT ? fmt64 : fmt32,  in sys_rt_sigreturn()
720 				   (long)uc, regs->nip, regs->link);  in sys_rt_sigreturn()
726 int handle_rt_signal64(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)  in handle_rt_signal64()  argument
732 	frame = get_sigframe(ksig, get_tm_stackpointer(regs), sizeof(*frame), 0);  in handle_rt_signal64()
744 	err |= __save_altstack(&frame->uc.uc_stack, regs->gpr[1]);  in handle_rt_signal64()
746 	if (MSR_TM_ACTIVE(regs->msr)) {  in handle_rt_signal64()
753 					    regs, ksig->sig,  in handle_rt_signal64()
760 		err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, ksig->sig,  in handle_rt_signal64()
773 		regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp;  in handle_rt_signal64()
778 		regs->link = (unsigned long) &frame->tramp[0];  in handle_rt_signal64()
783 	err |= put_user(regs->gpr[1], (unsigned long __user *)newsp);  in handle_rt_signal64()
787 		regs->nip = (unsigned long) ksig->ka.sa.sa_handler;  in handle_rt_signal64()
788 		regs->gpr[12] = regs->nip;  in handle_rt_signal64()
798 		err |= get_user(regs->nip, &funct_desc_ptr->entry);  in handle_rt_signal64()
799 		err |= get_user(regs->gpr[2], &funct_desc_ptr->toc);  in handle_rt_signal64()
803 	regs->msr &= ~MSR_LE;  in handle_rt_signal64()
804 	regs->msr |= (MSR_KERNEL & MSR_LE);  in handle_rt_signal64()
805 	regs->gpr[1] = newsp;  in handle_rt_signal64()
806 	regs->gpr[3] = ksig->sig;  in handle_rt_signal64()
807 	regs->result = 0;  in handle_rt_signal64()
809 		err |= get_user(regs->gpr[4], (unsigned long __user *)&frame->pinfo);  in handle_rt_signal64()
810 		err |= get_user(regs->gpr[5], (unsigned long __user *)&frame->puc);  in handle_rt_signal64()
811 		regs->gpr[6] = (unsigned long) frame;  in handle_rt_signal64()
813 		regs->gpr[4] = (unsigned long)&frame->uc.uc_mcontext;  in handle_rt_signal64()
822 		printk_ratelimited(regs->msr & MSR_64BIT ? fmt64 : fmt32,  in handle_rt_signal64()
824 				   (long)frame, regs->nip, regs->link);  in handle_rt_signal64()