1 /* 2 * Copyright (c) 1993 Adam Glass 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Adam Glass. 16 * 4. The name of the Author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY Adam Glass ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $Id: pmap3.h,v 1.9 1994/06/29 05:32:53 gwr Exp $ 32 */ 33 34 #ifndef _PMAP_MACHINE_ 35 #define _PMAP_MACHINE_ 36 37 #include <sys/queue.h> 38 39 /* 40 * Pmap stuff 41 * [some ideas borrowed from torek, but no code] 42 */ 43 44 struct context_state { 45 TAILQ_ENTRY(context_state) context_link; 46 int context_num; 47 struct pmap *context_upmap; 48 }; 49 50 typedef struct context_state *context_t; 51 52 struct pmap { 53 int pm_refcount; /* pmap reference count */ 54 simple_lock_data_t pm_lock; /* lock on pmap */ 55 struct pmap_statistics pm_stats; /* pmap statistics */ 56 context_t pm_context; /* context if any */ 57 int pm_version; 58 unsigned char *pm_segmap; 59 }; 60 61 typedef struct pmap *pmap_t; 62 63 extern pmap_t kernel_pmap; 64 65 #define PMEGQ_FREE 0 66 #define PMEGQ_INACTIVE 1 67 #define PMEGQ_ACTIVE 2 68 #define PMEGQ_KERNEL 3 69 #define PMEGQ_NONE 4 70 71 struct pmeg_state { 72 TAILQ_ENTRY(pmeg_state) pmeg_link; 73 int pmeg_index; 74 pmap_t pmeg_owner; 75 int pmeg_owner_version; 76 vm_offset_t pmeg_va; 77 int pmeg_wired_count; 78 int pmeg_reserved; 79 int pmeg_vpages; 80 int pmeg_qstate; 81 }; 82 83 typedef struct pmeg_state *pmeg_t; 84 85 #define PMAP_ACTIVATE(pmap, pcbp, iscurproc) \ 86 pmap_activate(pmap, pcbp) 87 #define PMAP_DEACTIVATE(pmap, pcbp) \ 88 pmap_deactivate(pmap, pcbp) 89 90 #define pmap_kernel() (kernel_pmap) 91 92 /* like the sparc port, use the lower bits of a pa which must be page 93 * aligned anyway to pass memtype, caching information. 94 */ 95 #define PMAP_MMEM 0x0 96 #define PMAP_OBIO 0x1 97 #define PMAP_VME16D 0x2 98 #define PMAP_VME32D 0x3 99 #define PMAP_MEMMASK 0x3 100 #define PMAP_NC 0x4 101 #define PMAP_SPECMASK 0x7 102 103 extern vm_offset_t virtual_avail, virtual_end; 104 extern vm_offset_t avail_start, avail_end; 105 106 #endif _PMAP_MACHINE_ 107