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Add instrumentation for `PMEG' management on sun4/4c.

This commit is contained in:
pk 2004-04-27 11:26:43 +00:00
parent a9c239e635
commit 202c3ce64e
1 changed files with 17 additions and 2 deletions
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19
sys/arch/sparc/sparc/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.293 2004/04/22 11:57:33 pk Exp $ */
/* $NetBSD: pmap.c,v 1.294 2004/04/27 11:26:43 pk Exp $ */
/*
* Copyright (c) 1996
@ -56,7 +56,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.293 2004/04/22 11:57:33 pk Exp $");
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.294 2004/04/27 11:26:43 pk Exp $");
#include "opt_ddb.h"
#include "opt_kgdb.h"
@ -139,6 +139,16 @@ struct pmap_stats {
int ps_npmeg_lru; /* # of pmegs on lru list */
} pmap_stats;
#if defined(SUN4) || defined(SUN4C)
struct evcnt mmu_stolenpmegs_evcnt =
EVCNT_INITIALIZER(EVCNT_TYPE_INTR,0,"mmu","stln pmgs");
EVCNT_ATTACH_STATIC(mmu_stolenpmegs_evcnt);
struct evcnt mmu_pagein_evcnt =
EVCNT_INITIALIZER(EVCNT_TYPE_INTR,0,"mmu","pagein");
EVCNT_ATTACH_STATIC(mmu_pagein_evcnt);
#endif /* SUN4 || SUN4C */
#ifdef DEBUG
#define PDB_CREATE 0x0001
#define PDB_DESTROY 0x0002
@ -1641,6 +1651,9 @@ me_alloc(mh, newpm, newvreg, newvseg)
printf("me_alloc: stealing pmeg 0x%x from pmap %p\n",
me->me_cookie, pm);
#endif
mmu_stolenpmegs_evcnt.ev_count++;
/*
* Remove from LRU list, and insert at end of new list
* (probably the LRU list again, but so what?).
@ -2023,6 +2036,8 @@ mmu_pagein_seg(struct pmap *pm, struct segmap *sp, vaddr_t va,
{
int s, i, pmeg, *pte;
mmu_pagein_evcnt.ev_count++;
va = VA_ROUNDDOWNTOSEG(va);
s = splvm(); /* paranoid */
sp->sg_pmeg = pmeg = me_alloc(mh, pm, vr, vs);