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 52 typedef struct pmap *pmap_t; 53 54 struct md_page { 55 TAILQ_HEAD(, tte) tte_list; 56 struct pmap *pmap; 57 uint32_t colors[DCACHE_COLORS]; 58 int32_t color; 59 }; 60 61 struct pmap { 62 struct mtx pm_mtx; 63 struct tte *pm_tsb; 64 vm_object_t pm_tsb_obj; 65 cpuset_t pm_active; 66 u_int pm_context[MAXCPU]; 67 struct pmap_statistics pm_stats; 68 }; 69 70 #define PMAP_LOCK(pmap) mtx_lock(&(pmap)->pm_mtx) 71 #define PMAP_LOCK_ASSERT(pmap, type) \ 72 mtx_assert(&(pmap)->pm_mtx, (type)) 73 #define PMAP_LOCK_DESTROY(pmap) mtx_destroy(&(pmap)->pm_mtx) 74 #define PMAP_LOCK_INIT(pmap) mtx_init(&(pmap)->pm_mtx, "pmap", \ 75 NULL, MTX_DEF | MTX_DUPOK) 76 #define PMAP_LOCKED(pmap) mtx_owned(&(pmap)->pm_mtx) 77 #define PMAP_MTX(pmap) (&(pmap)->pm_mtx) 78 #define PMAP_TRYLOCK(pmap) mtx_trylock(&(pmap)->pm_mtx) 79 #define PMAP_UNLOCK(pmap) mtx_unlock(&(pmap)->pm_mtx) 80 81 #define pmap_page_get_memattr(m) VM_MEMATTR_DEFAULT 82 #define pmap_page_is_write_mapped(m) (((m)->aflags & PGA_WRITEABLE) != 0) 83 #define pmap_page_set_memattr(m, ma) (void)0 84 85 void pmap_bootstrap(u_int cpu_impl); 86 vm_paddr_t pmap_kextract(vm_offset_t va); 87 void pmap_kenter(vm_offset_t va, vm_page_t m); 88 void pmap_kremove(vm_offset_t); 89 void pmap_kenter_flags(vm_offset_t va, vm_paddr_t pa, u_long flags); 90 void pmap_kremove_flags(vm_offset_t va); 91 boolean_t pmap_page_is_mapped(vm_page_t m); 92 93 int pmap_cache_enter(vm_page_t m, vm_offset_t va); 94 95 int pmap_remove_tte(struct pmap *pm1, struct pmap *pm2, struct tte *tp, 96 vm_offset_t va); 97 98 void pmap_map_tsb(void); 99 void pmap_set_kctx(void); 100 101 #define vtophys(va) pmap_kextract((vm_offset_t)(va)) 102 103 extern struct pmap kernel_pmap_store; 104 #define kernel_pmap (&kernel_pmap_store) 105 extern struct rwlock_padalign tte_list_global_lock; 106 extern vm_paddr_t phys_avail[]; 107 extern vm_offset_t virtual_avail; 108 extern vm_offset_t virtual_end; 109 110 #ifdef PMAP_STATS 111 112 SYSCTL_DECL(_debug_pmap_stats); 113 114 #define PMAP_STATS_VAR(name) \ 115 static long name; \ 116 SYSCTL_LONG(_debug_pmap_stats, OID_AUTO, name, CTLFLAG_RW, \ 117 &name, 0, "") 118 119 #define PMAP_STATS_INC(var) \ 120 atomic_add_long(&var, 1) 121 122 #else 123 124 #define PMAP_STATS_VAR(name) 125 #define PMAP_STATS_INC(var) 126 127 #endif 128 129 #endif /* !_MACHINE_PMAP_H_ */ 130