pmap.h revision 330897
1/*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1991 Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * the Systems Programming Group of the University of Utah Computer 9 * Science Department and William Jolitz of UUNET Technologies Inc. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * from: hp300: @(#)pmap.h 7.2 (Berkeley) 12/16/90 36 * from: @(#)pmap.h 7.4 (Berkeley) 5/12/91 37 * from: FreeBSD: src/sys/i386/include/pmap.h,v 1.70 2000/11/30 38 * $FreeBSD: stable/11/sys/sparc64/include/pmap.h 330897 2018-03-14 03:19:51Z eadler $ 39 */ 40 41#ifndef _MACHINE_PMAP_H_ 42#define _MACHINE_PMAP_H_ 43 44#include <sys/queue.h> 45#include <sys/_cpuset.h> 46#include <sys/_lock.h> 47#include <sys/_mutex.h> 48#include <sys/_rwlock.h> 49#include <machine/cache.h> 50#include <machine/tte.h> 51 52#define PMAP_CONTEXT_MAX 8192 53 54typedef struct pmap *pmap_t; 55 56struct md_page { 57 TAILQ_HEAD(, tte) tte_list; 58 struct pmap *pmap; 59 uint32_t colors[DCACHE_COLORS]; 60 int32_t color; 61}; 62 63struct pmap { 64 struct mtx pm_mtx; 65 struct tte *pm_tsb; 66 vm_object_t pm_tsb_obj; 67 cpuset_t pm_active; 68 u_int pm_context[MAXCPU]; 69 struct pmap_statistics pm_stats; 70}; 71 72#define PMAP_LOCK(pmap) mtx_lock(&(pmap)->pm_mtx) 73#define PMAP_LOCK_ASSERT(pmap, type) \ 74 mtx_assert(&(pmap)->pm_mtx, (type)) 75#define PMAP_LOCK_DESTROY(pmap) mtx_destroy(&(pmap)->pm_mtx) 76#define PMAP_LOCK_INIT(pmap) mtx_init(&(pmap)->pm_mtx, "pmap", \ 77 NULL, MTX_DEF | MTX_DUPOK) 78#define PMAP_LOCKED(pmap) mtx_owned(&(pmap)->pm_mtx) 79#define PMAP_MTX(pmap) (&(pmap)->pm_mtx) 80#define PMAP_TRYLOCK(pmap) mtx_trylock(&(pmap)->pm_mtx) 81#define PMAP_UNLOCK(pmap) mtx_unlock(&(pmap)->pm_mtx) 82 83#define pmap_page_get_memattr(m) VM_MEMATTR_DEFAULT 84#define pmap_page_is_write_mapped(m) (((m)->aflags & PGA_WRITEABLE) != 0) 85#define pmap_page_set_memattr(m, ma) (void)0 86 87void pmap_bootstrap(u_int cpu_impl); 88vm_paddr_t pmap_kextract(vm_offset_t va); 89void pmap_kenter(vm_offset_t va, vm_page_t m); 90void pmap_kremove(vm_offset_t); 91void pmap_kenter_flags(vm_offset_t va, vm_paddr_t pa, u_long flags); 92void pmap_kremove_flags(vm_offset_t va); 93boolean_t pmap_page_is_mapped(vm_page_t m); 94 95int pmap_cache_enter(vm_page_t m, vm_offset_t va); 96 97int pmap_remove_tte(struct pmap *pm1, struct pmap *pm2, struct tte *tp, 98 vm_offset_t va); 99 100void pmap_map_tsb(void); 101void pmap_set_kctx(void); 102 103#define vtophys(va) pmap_kextract((vm_offset_t)(va)) 104 105extern struct pmap kernel_pmap_store; 106#define kernel_pmap (&kernel_pmap_store) 107extern struct rwlock_padalign tte_list_global_lock; 108extern vm_paddr_t phys_avail[]; 109extern vm_offset_t virtual_avail; 110extern vm_offset_t virtual_end; 111 112#ifdef PMAP_STATS 113 114SYSCTL_DECL(_debug_pmap_stats); 115 116#define PMAP_STATS_VAR(name) \ 117 static long name; \ 118 SYSCTL_LONG(_debug_pmap_stats, OID_AUTO, name, CTLFLAG_RW, \ 119 &name, 0, "") 120 121#define PMAP_STATS_INC(var) \ 122 atomic_add_long(&var, 1) 123 124#else 125 126#define PMAP_STATS_VAR(name) 127#define PMAP_STATS_INC(var) 128 129#endif 130 131#endif /* !_MACHINE_PMAP_H_ */ 132