arm/arm/pmap-v4.c

1508 pmap_enter_pv(struct vm_page *pg, struct pv_entry *pve, pmap_t pm,
1515 		pve->pv_pmap = kernel_pmap;
1516 		pve->pv_va = pg->md.pv_kva;
1517 		pve->pv_flags = PVF_WRITE | PVF_UNMAN;
1520 		TAILQ_INSERT_HEAD(&pg->md.pv_list, pve, pv_list);
1521 		TAILQ_INSERT_HEAD(&kernel_pmap->pm_pvlist, pve, pv_plist);
1525 		if ((pve = pmap_get_pv_entry()) == NULL)
1528 	pve->pv_pmap = pm;
1529 	pve->pv_va = va;
1530 	pve->pv_flags = flags;
1531 	TAILQ_INSERT_HEAD(&pg->md.pv_list, pve, pv_list);
1532 	TAILQ_INSERT_HEAD(&pm->pm_pvlist, pve, pv_plist);
1534 	if (pve->pv_flags & PVF_WIRED)
1586  * => we return the removed pve
1590 pmap_nuke_pv(struct vm_page *pg, pmap_t pm, struct pv_entry *pve)
1596 	TAILQ_REMOVE(&pg->md.pv_list, pve, pv_list);
1597 	TAILQ_REMOVE(&pm->pm_pvlist, pve, pv_plist);
1598 	if (pve->pv_flags & PVF_WIRED)
1606 	if ((pve->pv_flags & PVF_NC) && ((pm == kernel_pmap) ||
1607 	     (pve->pv_flags & PVF_WRITE) || !(pve->pv_flags & PVF_MWC)))
1609 	else if (pve->pv_flags & PVF_WRITE) {
1610 		TAILQ_FOREACH(pve, &pg->md.pv_list, pv_list)
1611 		    if (pve->pv_flags & PVF_WRITE)
1613 		if (!pve) {
1638 	struct pv_entry *pve;
1641 	pve = TAILQ_FIRST(&pg->md.pv_list);
1643 	while (pve) {
1644 		if (pve->pv_pmap == pm && pve->pv_va == va) {	/* match? */
1645 			pmap_nuke_pv(pg, pm, pve);
1648 		pve = TAILQ_NEXT(pve, pv_list);
1651 	if (pve == NULL && pg->md.pv_kva == va)
1654 	return(pve);				/* return removed pve */
2652 	struct pv_entry *pve;
2693 			if ((pve = pmap_get_pv_entry()) == NULL)
2696 			pmap_enter_pv(m, pve, kernel_pmap, va,
2781 	struct pv_entry *pve;
2803 		    (pve = pmap_remove_pv(m, kernel_pmap, va)))
2804 			pmap_free_pv_entry(pve);
3218 	struct pv_entry *pve = NULL;
3355 			if ((pve = pmap_remove_pv(opg, pmap, va))) {
3358 			 * because PG_FICTITIOUS pages could free the pve
3360 			    oflags = pve->pv_flags;
3386 				pmap_free_pv_entry(pve);
3387 				pve = NULL;
3392 				pve = pmap_get_pv_entry();
3396 			pve = pmap_get_pv_entry();
3402 					KASSERT(pve != NULL, ("No pv"));
3404 					pmap_enter_pv(m, pve, pmap, va, nflags);
3411  				KASSERT(pve != NULL, ("No pv"));
3412  				pmap_enter_pv(m, pve, pmap, va, nflags);
3898 				struct pv_entry *pve;
3900 				pve = pmap_remove_pv(pg, pm, sva);
3901 				if (pve) {
3902 					is_exec = PV_BEEN_EXECD(pve->pv_flags);
3903 					is_refd = PV_BEEN_REFD(pve->pv_flags);
3904 					pmap_free_pv_entry(pve);