pmap.h revision 1.16
1 /* $NetBSD: pmap.h,v 1.16 2009/04/21 21:29:59 cegger Exp $ */ 2 3 /*- 4 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 5 * Copyright (C) 1995, 1996 TooLs GmbH. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by TooLs GmbH. 19 * 4. The name of TooLs GmbH may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #ifndef _POWERPC_OEA_PMAP_H_ 35 #define _POWERPC_OEA_PMAP_H_ 36 37 #ifdef _KERNEL_OPT 38 #include "opt_ppcarch.h" 39 #endif 40 #include <powerpc/oea/pte.h> 41 42 #ifndef _LOCORE 43 /* 44 * Pmap stuff 45 */ 46 struct pmap { 47 #ifdef PPC_OEA64 48 struct steg *pm_steg_table; /* segment table pointer */ 49 /* XXX need way to track exec pages */ 50 #endif 51 52 #if defined(PPC_OEA) || defined (PPC_OEA64_BRIDGE) 53 register_t pm_sr[16]; /* segments used in this pmap */ 54 int pm_exec[16]; /* counts of exec mappings */ 55 #endif 56 register_t pm_vsid; /* VSID bits */ 57 int pm_refs; /* ref count */ 58 struct pmap_statistics pm_stats; /* pmap statistics */ 59 unsigned int pm_evictions; /* pvo's not in page table */ 60 61 #ifdef PPC_OEA64 62 unsigned int pm_ste_evictions; 63 #endif 64 }; 65 66 struct pmap_ops { 67 int (*pmapop_pte_spill)(struct pmap *, vaddr_t, bool); 68 void (*pmapop_real_memory)(paddr_t *, psize_t *); 69 void (*pmapop_init)(void); 70 void (*pmapop_virtual_space)(vaddr_t *, vaddr_t *); 71 pmap_t (*pmapop_create)(void); 72 void (*pmapop_reference)(pmap_t); 73 void (*pmapop_destroy)(pmap_t); 74 void (*pmapop_copy)(pmap_t, pmap_t, vaddr_t, vsize_t, vaddr_t); 75 void (*pmapop_update)(pmap_t); 76 void (*pmapop_collect)(pmap_t); 77 int (*pmapop_enter)(pmap_t, vaddr_t, paddr_t, vm_prot_t, u_int); 78 void (*pmapop_remove)(pmap_t, vaddr_t, vaddr_t); 79 void (*pmapop_kenter_pa)(vaddr_t, paddr_t, vm_prot_t); 80 void (*pmapop_kremove)(vaddr_t, vsize_t); 81 bool (*pmapop_extract)(pmap_t, vaddr_t, paddr_t *); 82 83 void (*pmapop_protect)(pmap_t, vaddr_t, vaddr_t, vm_prot_t); 84 void (*pmapop_unwire)(pmap_t, vaddr_t); 85 void (*pmapop_page_protect)(struct vm_page *, vm_prot_t); 86 bool (*pmapop_query_bit)(struct vm_page *, int); 87 bool (*pmapop_clear_bit)(struct vm_page *, int); 88 89 void (*pmapop_activate)(struct lwp *); 90 void (*pmapop_deactivate)(struct lwp *); 91 92 void (*pmapop_pinit)(pmap_t); 93 void (*pmapop_procwr)(struct proc *, vaddr_t, size_t); 94 95 void (*pmapop_pte_print)(volatile struct pte *); 96 void (*pmapop_pteg_check)(void); 97 void (*pmapop_print_mmuregs)(void); 98 void (*pmapop_print_pte)(pmap_t, vaddr_t); 99 void (*pmapop_pteg_dist)(void); 100 void (*pmapop_pvo_verify)(void); 101 vaddr_t (*pmapop_steal_memory)(vsize_t, vaddr_t *, vaddr_t *); 102 void (*pmapop_bootstrap)(paddr_t, paddr_t); 103 }; 104 105 #ifdef _KERNEL 106 #include <sys/cdefs.h> 107 __BEGIN_DECLS 108 #include <sys/param.h> 109 #include <sys/systm.h> 110 111 #if defined (PPC_OEA) || defined (PPC_OEA64_BRIDGE) 112 extern register_t iosrtable[]; 113 #endif 114 extern int pmap_use_altivec; 115 116 #define pmap_clear_modify(pg) (pmap_clear_bit((pg), PTE_CHG)) 117 #define pmap_clear_reference(pg) (pmap_clear_bit((pg), PTE_REF)) 118 #define pmap_is_modified(pg) (pmap_query_bit((pg), PTE_CHG)) 119 #define pmap_is_referenced(pg) (pmap_query_bit((pg), PTE_REF)) 120 121 #define pmap_phys_address(x) (x) 122 123 #define pmap_resident_count(pmap) ((pmap)->pm_stats.resident_count) 124 #define pmap_wired_count(pmap) ((pmap)->pm_stats.wired_count) 125 126 /* ARGSUSED */ 127 static inline void 128 pmap_remove_all(struct pmap *pmap) 129 { 130 /* Nothing. */ 131 } 132 133 #if (defined(PPC_OEA) + defined(PPC_OEA64) + defined(PPC_OEA64_BRIDGE)) != 1 134 #define PMAP_EXCLUDE_DECLS 135 #endif 136 137 #ifndef PMAP_NOOPNAMES 138 139 #if !defined(PMAP_EXCLUDE_DECLS) 140 void pmap_bootstrap(vaddr_t, vaddr_t); 141 bool pmap_extract(pmap_t, vaddr_t, paddr_t *); 142 bool pmap_query_bit(struct vm_page *, int); 143 bool pmap_clear_bit(struct vm_page *, int); 144 void pmap_real_memory(paddr_t *, psize_t *); 145 void pmap_procwr(struct proc *, vaddr_t, size_t); 146 int pmap_pte_spill(pmap_t, vaddr_t, bool); 147 void pmap_pinit(pmap_t); 148 149 #else 150 #define PMAPOPNAME(name) (*pmapops->pmapop_##name) 151 extern const struct pmap_ops *pmapops; 152 #define pmap_pte_spill PMAPOPNAME(pte_spill) 153 #define pmap_real_memory PMAPOPNAME(real_memory) 154 #define pmap_init PMAPOPNAME(init) 155 #define pmap_virtual_space PMAPOPNAME(virtual_space) 156 #define pmap_create PMAPOPNAME(create) 157 #define pmap_reference PMAPOPNAME(reference) 158 #define pmap_destroy PMAPOPNAME(destroy) 159 #define pmap_copy PMAPOPNAME(copy) 160 #define pmap_update PMAPOPNAME(update) 161 #define pmap_collect PMAPOPNAME(collect) 162 #define pmap_enter PMAPOPNAME(enter) 163 #define pmap_remove PMAPOPNAME(remove) 164 #define pmap_kenter_pa PMAPOPNAME(kenter_pa) 165 #define pmap_kremove PMAPOPNAME(kremove) 166 #define pmap_extract PMAPOPNAME(extract) 167 #define pmap_protect PMAPOPNAME(protect) 168 #define pmap_unwire PMAPOPNAME(unwire) 169 #define pmap_page_protect PMAPOPNAME(page_protect) 170 #define pmap_query_bit PMAPOPNAME(query_bit) 171 #define pmap_clear_bit PMAPOPNAME(clear_bit) 172 173 #define pmap_activate PMAPOPNAME(activate) 174 #define pmap_deactivate PMAPOPNAME(deactivate) 175 176 #define pmap_pinit PMAPOPNAME(pinit) 177 #define pmap_procwr PMAPOPNAME(procwr) 178 179 #define pmap_pte_print PMAPOPNAME(pte_print) 180 #define pmap_pteg_check PMAPOPNAME(pteg_check) 181 #define pmap_print_mmuregs PMAPOPNAME(print_mmuregs) 182 #define pmap_print_pte PMAPOPNAME(print_pte) 183 #define pmap_pteg_dist PMAPOPNAME(pteg_dist) 184 #define pmap_pvo_verify PMAPOPNAME(pvo_verify) 185 #define pmap_steal_memory PMAPOPNAME(steal_memory) 186 #define pmap_bootstrap PMAPOPNAME(bootstrap) 187 #endif /* PMAP_EXCLUDE_DECLS */ 188 189 static inline paddr_t vtophys (vaddr_t); 190 191 /* 192 * Alternate mapping hooks for pool pages. Avoids thrashing the TLB. 193 * 194 * Note: This won't work if we have more memory than can be direct-mapped 195 * VA==PA all at once. But pmap_copy_page() and pmap_zero_page() will have 196 * this problem, too. 197 */ 198 #if !defined(PPC_OEA64) && !defined (PPC_OEA64_BRIDGE) 199 #define PMAP_MAP_POOLPAGE(pa) (pa) 200 #define PMAP_UNMAP_POOLPAGE(pa) (pa) 201 #define POOL_VTOPHYS(va) vtophys((vaddr_t) va) 202 #endif 203 204 static inline paddr_t 205 vtophys(vaddr_t va) 206 { 207 paddr_t pa; 208 209 if (pmap_extract(pmap_kernel(), va, &pa)) 210 return pa; 211 KASSERT(0); 212 return (paddr_t) -1; 213 } 214 215 extern const struct pmap_ops *pmapops; 216 extern const struct pmap_ops pmap32_ops; 217 extern const struct pmap_ops pmap64_ops; 218 extern const struct pmap_ops pmap64bridge_ops; 219 220 static inline void 221 pmap_setup32(void) 222 { 223 pmapops = &pmap32_ops; 224 } 225 226 static inline void 227 pmap_setup64(void) 228 { 229 pmapops = &pmap64_ops; 230 } 231 232 static inline void 233 pmap_setup64bridge(void) 234 { 235 pmapops = &pmap64bridge_ops; 236 } 237 238 #endif /* !PMAP_NOOPNAMES */ 239 240 bool pmap_pageidlezero (paddr_t); 241 void pmap_syncicache (paddr_t, psize_t); 242 #ifdef PPC_OEA64 243 vaddr_t pmap_setusr (vaddr_t); 244 vaddr_t pmap_unsetusr (void); 245 #endif 246 247 #ifdef PPC_OEA64_BRIDGE 248 int pmap_setup_segment0_map(int use_large_pages, ...); 249 #endif 250 251 #define PMAP_NC 0x1000 252 #define PMAP_STEAL_MEMORY 253 #define PMAP_NEED_PROCWR 254 255 void pmap_zero_page(paddr_t); 256 void pmap_copy_page(paddr_t, paddr_t); 257 258 __END_DECLS 259 #endif /* _KERNEL */ 260 #endif /* _LOCORE */ 261 262 #endif /* _POWERPC_OEA_PMAP_H_ */ 263
Indexes created Mon Sep 29 18:09:42 GMT 2025