/* $NetBSD: pmap.h,v 1.1.1.1 1997/01/14 20:57:06 gwr Exp $ */ /*- * Copyright (c) 1997 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jeremy Cooper. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _SUN3X_PMAP_H #define _SUN3X_PMAP_H /* * Physical map structures exported to the VM code. */ struct pmap { int pm_refcount; /* pmap reference count */ simple_lock_data_t pm_lock; /* lock on pmap */ struct pmap_statistics pm_stats; /* pmap statistics */ struct a_tmgr_struct *pm_a_tbl; /* Root level MMU table to use */ }; typedef struct pmap *pmap_t; #ifdef _KERNEL extern struct pmap kernel_pmap; struct pcb; void pmap_activate __P((pmap_t pmap, struct pcb *pcbp)); void pmap_deactivate __P((pmap_t pmap, struct pcb *pcbp)); #define pmap_kernel() (&kernel_pmap) #define PMAP_ACTIVATE(pmap, pcbp, iscurproc) \ pmap_activate(pmap, pcbp) #define PMAP_DEACTIVATE(pmap, pcbp) \ pmap_deactivate(pmap, pcbp) #define pmap_resident_count(pmap) ((pmap)->pm_stats.resident_count) #define pmap_wired_count(pmap) ((pmap)->pm_stats.wired_count) #define pmap_phys_address(page) (page) /* * Flags to tell pmap_enter `this is not to be cached', etc. * Since physical addresses are always aligned, we can use * the low order bits for this. */ #define PMAP_VME16 0x10 /* pmap will add the necessary offset */ #define PMAP_VME32 0x20 /* etc. */ #define PMAP_NC 0x40 /* tells pmap_enter to set PTE_CI */ #define PMAP_SPEC 0xFF /* mask to get all above. */ #endif /* _KERNEL */ #endif /* _SUN3X_PMAP_H */