Annotation of src/sys/arch/powerpc/include/oea/pmap.h, Revision 1.16
1.16 ! cegger 1: /* $NetBSD: pmap.h,v 1.15 2008/12/28 10:23:11 he Exp $ */
1.1 matt 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:
1.15 he 37: #ifdef _KERNEL_OPT
1.12 garbled 38: #include "opt_ppcarch.h"
1.15 he 39: #endif
1.1 matt 40: #include <powerpc/oea/pte.h>
41:
42: #ifndef _LOCORE
43: /*
44: * Pmap stuff
45: */
46: struct pmap {
1.6 matt 47: #ifdef PPC_OEA64
48: struct steg *pm_steg_table; /* segment table pointer */
49: /* XXX need way to track exec pages */
50: #endif
1.9 sanjayl 51:
52: #if defined(PPC_OEA) || defined (PPC_OEA64_BRIDGE)
1.2 matt 53: register_t pm_sr[16]; /* segments used in this pmap */
1.5 chs 54: int pm_exec[16]; /* counts of exec mappings */
1.6 matt 55: #endif
56: register_t pm_vsid; /* VSID bits */
1.2 matt 57: int pm_refs; /* ref count */
1.1 matt 58: struct pmap_statistics pm_stats; /* pmap statistics */
1.2 matt 59: unsigned int pm_evictions; /* pvo's not in page table */
1.9 sanjayl 60:
1.6 matt 61: #ifdef PPC_OEA64
62: unsigned int pm_ste_evictions;
63: #endif
1.1 matt 64: };
65:
1.12 garbled 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);
1.16 ! cegger 77: int (*pmapop_enter)(pmap_t, vaddr_t, paddr_t, vm_prot_t, u_int);
1.12 garbled 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:
1.1 matt 105: #ifdef _KERNEL
1.12 garbled 106: #include <sys/cdefs.h>
107: __BEGIN_DECLS
1.6 matt 108: #include <sys/param.h>
1.4 matt 109: #include <sys/systm.h>
110:
1.9 sanjayl 111: #if defined (PPC_OEA) || defined (PPC_OEA64_BRIDGE)
1.2 matt 112: extern register_t iosrtable[];
1.6 matt 113: #endif
1.1 matt 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:
1.3 matt 126: /* ARGSUSED */
1.8 perry 127: static inline void
1.1 matt 128: pmap_remove_all(struct pmap *pmap)
129: {
130: /* Nothing. */
131: }
132:
1.13 matt 133: #if (defined(PPC_OEA) + defined(PPC_OEA64) + defined(PPC_OEA64_BRIDGE)) != 1
1.12 garbled 134: #define PMAP_EXCLUDE_DECLS
1.6 matt 135: #endif
1.1 matt 136:
1.12 garbled 137: #ifndef PMAP_NOOPNAMES
1.11 garbled 138:
1.12 garbled 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 *);
1.5 chs 145: void pmap_procwr(struct proc *, vaddr_t, size_t);
1.12 garbled 146: int pmap_pte_spill(pmap_t, vaddr_t, bool);
147: void pmap_pinit(pmap_t);
1.1 matt 148:
1.12 garbled 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 */
1.1 matt 188:
1.8 perry 189: static inline paddr_t vtophys (vaddr_t);
1.4 matt 190:
1.1 matt 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: */
1.9 sanjayl 198: #if !defined(PPC_OEA64) && !defined (PPC_OEA64_BRIDGE)
1.1 matt 199: #define PMAP_MAP_POOLPAGE(pa) (pa)
200: #define PMAP_UNMAP_POOLPAGE(pa) (pa)
1.4 matt 201: #define POOL_VTOPHYS(va) vtophys((vaddr_t) va)
1.6 matt 202: #endif
1.1 matt 203:
1.8 perry 204: static inline paddr_t
1.1 matt 205: vtophys(vaddr_t va)
206: {
207: paddr_t pa;
208:
209: if (pmap_extract(pmap_kernel(), va, &pa))
210: return pa;
1.4 matt 211: KASSERT(0);
212: return (paddr_t) -1;
1.1 matt 213: }
214:
1.12 garbled 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
1.1 matt 259: #endif /* _KERNEL */
260: #endif /* _LOCORE */
261:
262: #endif /* _POWERPC_OEA_PMAP_H_ */
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