| vm_page.h (33936) | vm_page.h (34206) |
|---|---|
| 1/* 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * The Mach Operating System project at Carnegie-Mellon University. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 47 unchanged lines hidden (view full) --- 56 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 57 * School of Computer Science 58 * Carnegie Mellon University 59 * Pittsburgh PA 15213-3890 60 * 61 * any improvements or extensions that they make and grant Carnegie the 62 * rights to redistribute these changes. 63 * | 1/* 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * The Mach Operating System project at Carnegie-Mellon University. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 47 unchanged lines hidden (view full) --- 56 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 57 * School of Computer Science 58 * Carnegie Mellon University 59 * Pittsburgh PA 15213-3890 60 * 61 * any improvements or extensions that they make and grant Carnegie the 62 * rights to redistribute these changes. 63 * |
| 64 * $Id: vm_page.h,v 1.36 1998/02/05 03:32:47 dyson Exp $ | 64 * $Id: vm_page.h,v 1.37 1998/03/01 04:18:26 dyson Exp $ |
| 65 */ 66 67/* 68 * Resident memory system definitions. 69 */ 70 71#ifndef _VM_PAGE_ 72#define _VM_PAGE_ --- 198 unchanged lines hidden (view full) --- 271#define PAGE_WAKEUP(m) { \ 272 (m)->flags &= ~PG_BUSY; \ 273 if (((m)->flags & PG_WANTED) && ((m)->busy == 0)) { \ 274 (m)->flags &= ~PG_WANTED; \ 275 wakeup((m)); \ 276 } \ 277} 278 | 65 */ 66 67/* 68 * Resident memory system definitions. 69 */ 70 71#ifndef _VM_PAGE_ 72#define _VM_PAGE_ --- 198 unchanged lines hidden (view full) --- 271#define PAGE_WAKEUP(m) { \ 272 (m)->flags &= ~PG_BUSY; \ 273 if (((m)->flags & PG_WANTED) && ((m)->busy == 0)) { \ 274 (m)->flags &= ~PG_WANTED; \ 275 wakeup((m)); \ 276 } \ 277} 278 |
| 279#define PAGE_BWAKEUP(m) { \ 280 (m)->busy--; \ 281 if ((((m)->flags & (PG_WANTED | PG_BUSY)) == PG_WANTED) && \ 282 ((m)->busy == 0)) { \ 283 (m)->flags &= ~PG_WANTED; \ 284 wakeup((m)); \ 285 } \ 286} 287 288 |
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| 279#if PAGE_SIZE == 4096 280#define VM_PAGE_BITS_ALL 0xff 281#endif 282 283#if PAGE_SIZE == 8192 284#define VM_PAGE_BITS_ALL 0xffff 285#endif 286 --- 58 unchanged lines hidden (view full) --- 345#endif 346} 347 348static __inline void 349vm_page_protect(vm_page_t mem, int prot) 350{ 351 if (prot == VM_PROT_NONE) { 352 if (mem->flags & (PG_WRITEABLE|PG_MAPPED)) { | 289#if PAGE_SIZE == 4096 290#define VM_PAGE_BITS_ALL 0xff 291#endif 292 293#if PAGE_SIZE == 8192 294#define VM_PAGE_BITS_ALL 0xffff 295#endif 296 --- 58 unchanged lines hidden (view full) --- 355#endif 356} 357 358static __inline void 359vm_page_protect(vm_page_t mem, int prot) 360{ 361 if (prot == VM_PROT_NONE) { 362 if (mem->flags & (PG_WRITEABLE|PG_MAPPED)) { |
| 353 pmap_page_protect(VM_PAGE_TO_PHYS(mem), prot); | 363 pmap_page_protect(VM_PAGE_TO_PHYS(mem), VM_PROT_NONE); |
| 354 mem->flags &= ~(PG_WRITEABLE|PG_MAPPED); 355 } 356 } else if ((prot == VM_PROT_READ) && (mem->flags & PG_WRITEABLE)) { | 364 mem->flags &= ~(PG_WRITEABLE|PG_MAPPED); 365 } 366 } else if ((prot == VM_PROT_READ) && (mem->flags & PG_WRITEABLE)) { |
| 357 pmap_page_protect(VM_PAGE_TO_PHYS(mem), prot); | 367 pmap_page_protect(VM_PAGE_TO_PHYS(mem), VM_PROT_READ); |
| 358 mem->flags &= ~PG_WRITEABLE; 359 } 360} 361 362/* 363 * vm_page_zero_fill: 364 * 365 * Zero-fill the specified page. --- 27 unchanged lines hidden --- | 368 mem->flags &= ~PG_WRITEABLE; 369 } 370} 371 372/* 373 * vm_page_zero_fill: 374 * 375 * Zero-fill the specified page. --- 27 unchanged lines hidden --- |