powerpc/kernel/signal_32.c

271 	unsigned long msr = regs->msr;
283 		msr |= MSR_VEC;
285 	/* else assert((regs->msr & MSR_VEC) == 0) */
302 	msr &= ~MSR_VSX;
312 		msr |= MSR_VSX;
322 		msr |= MSR_SPE;
324 	/* else assert((regs->msr & MSR_SPE) == 0) */
331 	unsafe_put_user(msr, &frame->mc_gregs[PT_MSR], failed);
370 			 struct mcontext __user *tm_frame, unsigned long msr)
382 	unsafe_put_user((msr >> 32), &tm_frame->mc_gregs[PT_MSR], failed);
388 		if (msr & MSR_VEC)
400 		msr |= MSR_VEC;
410 	if (msr & MSR_VEC)
418 	if (msr & MSR_FP)
431 		if (msr & MSR_VSX)
436 		msr |= MSR_VSX;
439 	unsafe_put_user(msr, &frame->mc_gregs[PT_MSR], failed);
451 			 struct mcontext __user *tm_frame, unsigned long msr)
457 #define unsafe_save_tm_user_regs(regs, frame, tm_frame, msr, label) do { \
458 	if (save_tm_user_regs_unsafe(regs, frame, tm_frame, msr))	\
470 	unsigned long msr;
485 	unsafe_get_user(msr, &sr->mc_gregs[PT_MSR], failed);
491 		regs_set_return_msr(regs, (regs->msr & ~MSR_LE) | (msr & MSR_LE));
498 	regs_set_return_msr(regs, regs->msr & ~MSR_VEC);
499 	if (msr & MSR_VEC) {
520 	regs_set_return_msr(regs, regs->msr & ~MSR_VSX);
521 	if (msr & MSR_VSX) {
536 	regs_set_return_msr(regs, regs->msr & ~(MSR_FP | MSR_FE0 | MSR_FE1));
545 	regs_set_return_msr(regs, regs->msr & ~MSR_SPE);
546 	if (msr & MSR_SPE) {
576 	unsigned long msr, msr_hi;
593 	unsafe_get_user(msr, &sr->mc_gregs[PT_MSR], failed);
596 	regs_set_return_msr(regs, (regs->msr & ~MSR_LE) | (msr & MSR_LE));
598 	regs_set_return_msr(regs, regs->msr & ~MSR_VEC);
599 	if (msr & MSR_VEC) {
617 	regs_set_return_msr(regs, regs->msr & ~(MSR_FP | MSR_FE0 | MSR_FE1));
621 	regs_set_return_msr(regs, regs->msr & ~MSR_VSX);
622 	if (msr & MSR_VSX) {
643 	if (msr & MSR_VEC)
653 	if (msr & MSR_VSX) {
688 	regs_set_return_msr(regs, (regs->msr & ~MSR_TS_MASK) | (msr_hi & MSR_TS_MASK));
700 	msr_check_and_set(msr & (MSR_FP | MSR_VEC));
701 	if (msr & MSR_FP) {
703 		regs_set_return_msr(regs, regs->msr | (MSR_FP | current->thread.fpexc_mode));
705 	if (msr & MSR_VEC) {
707 		regs_set_return_msr(regs, regs->msr | MSR_VEC);
745 	/* Save the thread's msr before get_tm_stackpointer() changes it */
746 	unsigned long msr = regs->msr;
754 	if (MSR_TM_ACTIVE(msr))
771 	if (MSR_TM_ACTIVE(msr)) {
778 		unsafe_save_tm_user_regs(regs, mctx, tm_mctx, msr, failed);
819 	regs_set_return_msr(regs, (regs->msr & ~MSR_LE) | (MSR_KERNEL & MSR_LE));
845 	/* Save the thread's msr before get_tm_stackpointer() changes it */
846 	unsigned long msr = regs->msr;
854 	if (MSR_TM_ACTIVE(msr))
876 	if (MSR_TM_ACTIVE(msr))
877 		unsafe_save_tm_user_regs(regs, mctx, tm_mctx, msr, failed);
907 	regs_set_return_msr(regs, (regs->msr & ~MSR_LE) | (MSR_KERNEL & MSR_LE));
1156 		 * Unset regs->msr because ucontext MSR TS is not
1160 		regs_set_return_msr(regs, regs->msr & ~MSR_TS_MASK);
1199 	unsigned long new_msr = regs->msr;