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Use a pool for pmap structures.

This commit is contained in:
thorpej 1999-01-11 20:58:46 +00:00
parent 2badef4d79
commit 8406f65cbf
1 changed files with 13 additions and 4 deletions
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17
sys/arch/sparc/sparc/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.133 1998/10/16 22:39:18 pk Exp $ */
/* $NetBSD: pmap.c,v 1.134 1999/01/11 20:58:46 thorpej Exp $ */
/*
* Copyright (c) 1996
@ -393,6 +393,11 @@ int mmu_has_hole;
vaddr_t prom_vstart; /* For /dev/kmem */
vaddr_t prom_vend;
/*
* Memory pool for pmap structures.
*/
static struct pool pmap_pmap_pool;
#if defined(SUN4)
/*
* [sun4]: segfixmask: on some systems (4/110) "getsegmap()" returns a
@ -3712,6 +3717,10 @@ pmap_init()
pool_init(&pv_pool, sizeof(struct pvlist), 0, 0, 0, "pvtable", 0,
NULL, NULL, 0);
/* Setup a pool for pmap structures. */
pool_init(&pmap_pmap_pool, sizeof(struct pmap), 0, 0, 0, "pmappl",
0, pool_page_alloc_nointr, pool_page_free_nointr, M_VMPMAP);
#if defined(SUN4M)
if (CPU_ISSUN4M) {
/*
@ -3765,12 +3774,12 @@ pmap_create(size)
if (size)
return (NULL);
pm = (struct pmap *)malloc(sizeof *pm, M_VMPMAP, M_WAITOK);
pm = pool_get(&pmap_pmap_pool, PR_WAITOK);
#ifdef DEBUG
if (pmapdebug & PDB_CREATE)
printf("pmap_create: created %p\n", pm);
#endif
bzero((caddr_t)pm, sizeof *pm);
bzero(pm, sizeof *pm);
pmap_pinit(pm);
return (pm);
}
@ -3866,7 +3875,7 @@ pmap_destroy(pm)
simple_unlock(&pm->pm_lock);
if (count == 0) {
pmap_release(pm);
free(pm, M_VMPMAP);
pool_put(&pmap_pmap_pool, pm);
}
}