PERFORCE change 98513 for review

[Kip Macy]

http://perforce.freebsd.org/chv.cgi?CH=98513

Change 98513 by kmacy at kmacy_storage:sun4v_work_test on 2006/06/04 23:14:17

	don't keep spinning in pmap_ipi if we have fewer than 32 cpus

Affected files ...

.. //depot/projects/kmacy_sun4v/src/sys/sun4v/sun4v/pmap.c#61 edit

Differences ...

==== //depot/projects/kmacy_sun4v/src/sys/sun4v/sun4v/pmap.c#61 (text+ko) ====

@@ -1197,15 +1197,16 @@
 	while (ackmask != curactive) {
 		DELAY(1);
 		i++;
-		if (i > 100000000) 
+		if (i > 1000000) 
 			panic(" ackmask=0x%x active=0x%x\n", ackmask, curactive);
 
 	}
 
 	active_total |= curactive;
-	if ((active = (pmap->pm_tlbactive & ~(active_total|cpumask))) != 0) 
+	if ((active = ((pmap->pm_tlbactive & all_cpus) & ~(active_total|cpumask))) != 0) {
+		printf("pmap_ipi: retrying");
 		goto retry;
-
+	}
  done:
 	return (active_total);
 }