| vm_kern.c (27899) | vm_kern.c (32702) |
|---|---|
| 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_kern.c,v 1.38 1997/08/02 14:33:26 bde Exp $ | 64 * $Id: vm_kern.c,v 1.39 1997/08/05 00:01:52 dyson Exp $ |
| 65 */ 66 67/* 68 * Kernel memory management. 69 */ 70 71#include <sys/param.h> 72#include <sys/systm.h> --- 149 unchanged lines hidden (view full) --- 222 * Arguments are as follows: 223 * 224 * parent Map to take range from 225 * size Size of range to find 226 * min, max Returned endpoints of map 227 * pageable Can the region be paged 228 */ 229vm_map_t | 65 */ 66 67/* 68 * Kernel memory management. 69 */ 70 71#include <sys/param.h> 72#include <sys/systm.h> --- 149 unchanged lines hidden (view full) --- 222 * Arguments are as follows: 223 * 224 * parent Map to take range from 225 * size Size of range to find 226 * min, max Returned endpoints of map 227 * pageable Can the region be paged 228 */ 229vm_map_t |
| 230kmem_suballoc(parent, min, max, size, pageable) | 230kmem_suballoc(parent, min, max, size) |
| 231 register vm_map_t parent; 232 vm_offset_t *min, *max; 233 register vm_size_t size; | 231 register vm_map_t parent; 232 vm_offset_t *min, *max; 233 register vm_size_t size; |
| 234 boolean_t pageable; | |
| 235{ 236 register int ret; 237 vm_map_t result; 238 239 size = round_page(size); 240 241 *min = (vm_offset_t) vm_map_min(parent); 242 ret = vm_map_find(parent, NULL, (vm_offset_t) 0, 243 min, size, TRUE, VM_PROT_ALL, VM_PROT_ALL, 0); 244 if (ret != KERN_SUCCESS) { 245 printf("kmem_suballoc: bad status return of %d.\n", ret); 246 panic("kmem_suballoc"); 247 } 248 *max = *min + size; 249 pmap_reference(vm_map_pmap(parent)); | 234{ 235 register int ret; 236 vm_map_t result; 237 238 size = round_page(size); 239 240 *min = (vm_offset_t) vm_map_min(parent); 241 ret = vm_map_find(parent, NULL, (vm_offset_t) 0, 242 min, size, TRUE, VM_PROT_ALL, VM_PROT_ALL, 0); 243 if (ret != KERN_SUCCESS) { 244 printf("kmem_suballoc: bad status return of %d.\n", ret); 245 panic("kmem_suballoc"); 246 } 247 *max = *min + size; 248 pmap_reference(vm_map_pmap(parent)); |
| 250 result = vm_map_create(vm_map_pmap(parent), *min, *max, pageable); | 249 result = vm_map_create(vm_map_pmap(parent), *min, *max); |
| 251 if (result == NULL) 252 panic("kmem_suballoc: cannot create submap"); 253 if ((ret = vm_map_submap(parent, *min, *max, result)) != KERN_SUCCESS) 254 panic("kmem_suballoc: unable to change range to submap"); 255 return (result); 256} 257 258/* --- 175 unchanged lines hidden (view full) --- 434 * the range between `start' and `end' as free. 435 */ 436void 437kmem_init(start, end) 438 vm_offset_t start, end; 439{ 440 register vm_map_t m; 441 | 250 if (result == NULL) 251 panic("kmem_suballoc: cannot create submap"); 252 if ((ret = vm_map_submap(parent, *min, *max, result)) != KERN_SUCCESS) 253 panic("kmem_suballoc: unable to change range to submap"); 254 return (result); 255} 256 257/* --- 175 unchanged lines hidden (view full) --- 433 * the range between `start' and `end' as free. 434 */ 435void 436kmem_init(start, end) 437 vm_offset_t start, end; 438{ 439 register vm_map_t m; 440 |
| 442 m = vm_map_create(kernel_pmap, VM_MIN_KERNEL_ADDRESS, end, FALSE); | 441 m = vm_map_create(kernel_pmap, VM_MIN_KERNEL_ADDRESS, end); |
| 443 vm_map_lock(m); 444 /* N.B.: cannot use kgdb to debug, starting with this assignment ... */ 445 kernel_map = m; 446 kernel_map->system_map = 1; 447 (void) vm_map_insert(m, NULL, (vm_offset_t) 0, 448 VM_MIN_KERNEL_ADDRESS, start, VM_PROT_ALL, VM_PROT_ALL, 0); 449 /* ... and ending with the completion of the above `insert' */ 450 vm_map_unlock(m); 451} | 442 vm_map_lock(m); 443 /* N.B.: cannot use kgdb to debug, starting with this assignment ... */ 444 kernel_map = m; 445 kernel_map->system_map = 1; 446 (void) vm_map_insert(m, NULL, (vm_offset_t) 0, 447 VM_MIN_KERNEL_ADDRESS, start, VM_PROT_ALL, VM_PROT_ALL, 0); 448 /* ... and ending with the completion of the above `insert' */ 449 vm_map_unlock(m); 450} |