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Use a memory pool for pmap structures.

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This commit is contained in:
thorpej 1998-12-21 08:51:39 +00:00
parent ab896b23d2
commit d6bc370c2d
1 changed files with 13 additions and 8 deletions
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21
sys/arch/hp300/hp300/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.58 1998/12/21 06:58:39 thorpej Exp $ */
/* $NetBSD: pmap.c,v 1.59 1998/12/21 08:51:39 thorpej Exp $ */
/*
* Copyright (c) 1991, 1993
@ -104,6 +104,7 @@
#include <sys/proc.h>
#include <sys/malloc.h>
#include <sys/user.h>
#include <sys/pool.h>
#include <machine/pte.h>
@ -258,6 +259,8 @@ extern caddr_t CADDR1, CADDR2;
pt_entry_t *caddr1_pte; /* PTE for CADDR1 */
pt_entry_t *caddr2_pte; /* PTE for CADDR2 */
struct pool pmap_pmap_pool; /* memory pool for pmap structures */
struct pv_entry *pmap_alloc_pv __P((void));
void pmap_free_pv __P((struct pv_entry *));
void pmap_collect_pv __P((void));
@ -576,6 +579,12 @@ bogons:
}
#endif
/*
* Initialize the pmap pools.
*/
pool_init(&pmap_pmap_pool, sizeof(struct pmap), 0, 0, 0, "pmappl",
0, pool_page_alloc_nointr, pool_page_free_nointr, M_VMPMAP);
/*
* Now it is safe to enable pv_table recording.
*/
@ -776,12 +785,8 @@ pmap_create(size)
if (size)
return (NULL);
/* XXX: is it ok to wait here? */
pmap = (pmap_t) malloc(sizeof *pmap, M_VMPMAP, M_WAITOK);
#ifdef notifwewait
if (pmap == NULL)
panic("pmap_create: cannot allocate a pmap");
#endif
pmap = pool_get(&pmap_pmap_pool, PR_WAITOK);
bzero(pmap, sizeof(*pmap));
pmap_pinit(pmap);
return (pmap);
@ -840,7 +845,7 @@ pmap_destroy(pmap)
simple_unlock(&pmap->pm_lock);
if (count == 0) {
pmap_release(pmap);
free((caddr_t)pmap, M_VMPMAP);
pool_put(&pmap_pmap_pool, pmap);
}
}