1/*- 2 * Copyright (c) 1991 Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * the Systems Programming Group of the University of Utah Computer 7 * Science Department and William Jolitz of UUNET Technologies Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from: hp300: @(#)pmap.h 7.2 (Berkeley) 12/16/90 34 * from: @(#)pmap.h 7.4 (Berkeley) 5/12/91 35 * from: FreeBSD: src/sys/i386/include/pmap.h,v 1.70 2000/11/30 36 * $FreeBSD$ 37 */ 38 39#ifndef _MACHINE_PMAP_H_ 40#define _MACHINE_PMAP_H_ 41 42#include <sys/queue.h> 43#include <sys/_cpuset.h> 44#include <sys/_lock.h> 45#include <sys/_mutex.h> 46#include <sys/_rwlock.h> 47#include <machine/cache.h> 48#include <machine/tte.h> 49 50#define PMAP_CONTEXT_MAX 8192 51 52typedef struct pmap *pmap_t; 53 54struct md_page { 55 TAILQ_HEAD(, tte) tte_list; 56 struct pmap *pmap; 57 uint32_t colors[DCACHE_COLORS]; 58 int32_t color; 59 uint32_t flags; 60}; 61 62struct pmap { 63 struct mtx pm_mtx; 64 struct tte *pm_tsb; 65 vm_object_t pm_tsb_obj; 66 cpuset_t pm_active; 67 u_int pm_context[MAXCPU]; 68 struct pmap_statistics pm_stats; 69}; 70 71struct tte_list_lock { 72 struct rwlock lock; 73 char padding[CACHE_LINE_SIZE - sizeof(struct rwlock)]; 74}; 75 76#define PMAP_LOCK(pmap) mtx_lock(&(pmap)->pm_mtx) 77#define PMAP_LOCK_ASSERT(pmap, type) \ 78 mtx_assert(&(pmap)->pm_mtx, (type)) 79#define PMAP_LOCK_DESTROY(pmap) mtx_destroy(&(pmap)->pm_mtx) 80#define PMAP_LOCK_INIT(pmap) mtx_init(&(pmap)->pm_mtx, "pmap", \ 81 NULL, MTX_DEF | MTX_DUPOK) 82#define PMAP_LOCKED(pmap) mtx_owned(&(pmap)->pm_mtx) 83#define PMAP_MTX(pmap) (&(pmap)->pm_mtx) 84#define PMAP_TRYLOCK(pmap) mtx_trylock(&(pmap)->pm_mtx) 85#define PMAP_UNLOCK(pmap) mtx_unlock(&(pmap)->pm_mtx) 86 87#define pmap_page_get_memattr(m) VM_MEMATTR_DEFAULT 88#define pmap_page_is_write_mapped(m) (((m)->aflags & PGA_WRITEABLE) != 0) 89#define pmap_page_set_memattr(m, ma) (void)0 90 91void pmap_bootstrap(u_int cpu_impl); 92vm_paddr_t pmap_kextract(vm_offset_t va); 93void pmap_kenter(vm_offset_t va, vm_page_t m); 94void pmap_kremove(vm_offset_t); 95void pmap_kenter_flags(vm_offset_t va, vm_paddr_t pa, u_long flags); 96void pmap_kremove_flags(vm_offset_t va); 97boolean_t pmap_page_is_mapped(vm_page_t m); 98 99int pmap_cache_enter(vm_page_t m, vm_offset_t va); 100 101int pmap_remove_tte(struct pmap *pm1, struct pmap *pm2, struct tte *tp, 102 vm_offset_t va); 103 104void pmap_map_tsb(void); 105void pmap_set_kctx(void); 106 107#define vtophys(va) pmap_kextract((vm_offset_t)(va)) 108 109extern struct pmap kernel_pmap_store; 110#define kernel_pmap (&kernel_pmap_store) 111extern struct tte_list_lock tte_list_global; 112#define tte_list_global_lock tte_list_global.lock 113extern vm_paddr_t phys_avail[]; 114extern vm_offset_t virtual_avail; 115extern vm_offset_t virtual_end; 116 117#ifdef PMAP_STATS 118 119SYSCTL_DECL(_debug_pmap_stats); 120 121#define PMAP_STATS_VAR(name) \ 122 static long name; \ 123 SYSCTL_LONG(_debug_pmap_stats, OID_AUTO, name, CTLFLAG_RW, \ 124 &name, 0, "") 125 126#define PMAP_STATS_INC(var) \ 127 atomic_add_long(&var, 1) 128 129#else 130 131#define PMAP_STATS_VAR(name) 132#define PMAP_STATS_INC(var) 133 134#endif 135 136#endif /* !_MACHINE_PMAP_H_ */ 137