+
+void SPEFloatingPointRoundException(struct pt_regs *regs)
+{
+ extern int speround_handler(struct pt_regs *regs);
+ int err;
+
+ preempt_disable();
+ if (regs->msr & MSR_SPE)
+ giveup_spe(current);
+ preempt_enable();
+
+ regs->nip -= 4;
+ err = speround_handler(regs);
+ if (err == 0) {
+ regs->nip += 4; /* skip emulated instruction */
+ emulate_single_step(regs);
+ return;
+ }
+
+ if (err == -EFAULT) {
+ /* got an error reading the instruction */
+ _exception(SIGSEGV, regs, SEGV_ACCERR, regs->nip);
+ } else if (err == -EINVAL) {
+ /* didn't recognize the instruction */
+ printk(KERN_ERR "unrecognized spe instruction "
+ "in %s at %lx\n", current->comm, regs->nip);
+ } else {
+ _exception(SIGFPE, regs, 0, regs->nip);
+ return;
+ }
+}