add a comment to sp_tlb_flush() about fixing the asm() better.

This commit is contained in:
mrg 2011-10-22 21:00:40 +00:00
parent 2ac8591757
commit 9d03b8ef4c

View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.346 2011/09/01 08:47:56 martin Exp $ */
/* $NetBSD: pmap.c,v 1.347 2011/10/22 21:00:40 mrg Exp $ */
/*
* Copyright (c) 1996
@ -56,7 +56,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.346 2011/09/01 08:47:56 martin Exp $");
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.347 2011/10/22 21:00:40 mrg Exp $");
#include "opt_ddb.h"
#include "opt_kgdb.h"
@ -604,6 +604,11 @@ void (*pmap_rmu_p)(struct pmap *, vaddr_t, vaddr_t, int, int);
static void
sp_tlb_flush(int va, int ctx, int lvl)
{
/*
* XXX convert %o3 (oldpsr), %o4 (SRMMU_CXR) and %o5 (old context)
* into generically named registers. right now we're assuming that
* gcc doesn't do anything funny with these registers.
*/
/* Traps off */
__asm("rd %psr, %o3");