| vm_kern.c (267548) | vm_kern.c (269728) |
|---|---|
| 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 --- 49 unchanged lines hidden (view full) --- 58 * rights to redistribute these changes. 59 */ 60 61/* 62 * Kernel memory management. 63 */ 64 65#include <sys/cdefs.h> | 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 --- 49 unchanged lines hidden (view full) --- 58 * rights to redistribute these changes. 59 */ 60 61/* 62 * Kernel memory management. 63 */ 64 65#include <sys/cdefs.h> |
| 66__FBSDID("$FreeBSD: head/sys/vm/vm_kern.c 267548 2014-06-16 18:15:27Z attilio $"); | 66__FBSDID("$FreeBSD: head/sys/vm/vm_kern.c 269728 2014-08-08 17:12:03Z kib $"); |
| 67 68#include <sys/param.h> 69#include <sys/systm.h> 70#include <sys/kernel.h> /* for ticks and hz */ 71#include <sys/eventhandler.h> 72#include <sys/lock.h> 73#include <sys/proc.h> 74#include <sys/malloc.h> --- 122 unchanged lines hidden (view full) --- 197 vm_page_free(m); 198 } 199 vmem_free(vmem, addr, size); 200 return (0); 201 } 202 if ((flags & M_ZERO) && (m->flags & PG_ZERO) == 0) 203 pmap_zero_page(m); 204 m->valid = VM_PAGE_BITS_ALL; | 67 68#include <sys/param.h> 69#include <sys/systm.h> 70#include <sys/kernel.h> /* for ticks and hz */ 71#include <sys/eventhandler.h> 72#include <sys/lock.h> 73#include <sys/proc.h> 74#include <sys/malloc.h> --- 122 unchanged lines hidden (view full) --- 197 vm_page_free(m); 198 } 199 vmem_free(vmem, addr, size); 200 return (0); 201 } 202 if ((flags & M_ZERO) && (m->flags & PG_ZERO) == 0) 203 pmap_zero_page(m); 204 m->valid = VM_PAGE_BITS_ALL; |
| 205 pmap_enter(kernel_pmap, addr + i, VM_PROT_ALL, m, VM_PROT_ALL, 206 TRUE); | 205 pmap_enter(kernel_pmap, addr + i, m, VM_PROT_ALL, 206 VM_PROT_ALL | PMAP_ENTER_WIRED, 0); |
| 207 } 208 VM_OBJECT_WUNLOCK(object); 209 return (addr); 210} 211 212/* 213 * Allocates a region from the kernel address map and physically 214 * contiguous pages within the specified address range to the kernel --- 35 unchanged lines hidden (view full) --- 250 return (0); 251 } 252 end_m = m + atop(size); 253 tmp = addr; 254 for (; m < end_m; m++) { 255 if ((flags & M_ZERO) && (m->flags & PG_ZERO) == 0) 256 pmap_zero_page(m); 257 m->valid = VM_PAGE_BITS_ALL; | 207 } 208 VM_OBJECT_WUNLOCK(object); 209 return (addr); 210} 211 212/* 213 * Allocates a region from the kernel address map and physically 214 * contiguous pages within the specified address range to the kernel --- 35 unchanged lines hidden (view full) --- 250 return (0); 251 } 252 end_m = m + atop(size); 253 tmp = addr; 254 for (; m < end_m; m++) { 255 if ((flags & M_ZERO) && (m->flags & PG_ZERO) == 0) 256 pmap_zero_page(m); 257 m->valid = VM_PAGE_BITS_ALL; |
| 258 pmap_enter(kernel_pmap, tmp, VM_PROT_ALL, m, VM_PROT_ALL, true); | 258 pmap_enter(kernel_pmap, tmp, m, VM_PROT_ALL, 259 VM_PROT_ALL | PMAP_ENTER_WIRED, 0); |
| 259 tmp += PAGE_SIZE; 260 } 261 VM_OBJECT_WUNLOCK(object); 262 return (addr); 263} 264 265/* 266 * kmem_suballoc: --- 106 unchanged lines hidden (view full) --- 373 VM_OBJECT_WUNLOCK(object); 374 return (KERN_NO_SPACE); 375 } 376 if (flags & M_ZERO && (m->flags & PG_ZERO) == 0) 377 pmap_zero_page(m); 378 KASSERT((m->oflags & VPO_UNMANAGED) != 0, 379 ("kmem_malloc: page %p is managed", m)); 380 m->valid = VM_PAGE_BITS_ALL; | 260 tmp += PAGE_SIZE; 261 } 262 VM_OBJECT_WUNLOCK(object); 263 return (addr); 264} 265 266/* 267 * kmem_suballoc: --- 106 unchanged lines hidden (view full) --- 374 VM_OBJECT_WUNLOCK(object); 375 return (KERN_NO_SPACE); 376 } 377 if (flags & M_ZERO && (m->flags & PG_ZERO) == 0) 378 pmap_zero_page(m); 379 KASSERT((m->oflags & VPO_UNMANAGED) != 0, 380 ("kmem_malloc: page %p is managed", m)); 381 m->valid = VM_PAGE_BITS_ALL; |
| 381 pmap_enter(kernel_pmap, addr + i, VM_PROT_ALL, m, VM_PROT_ALL, 382 TRUE); | 382 pmap_enter(kernel_pmap, addr + i, m, VM_PROT_ALL, 383 VM_PROT_ALL | PMAP_ENTER_WIRED, 0); |
| 383 } 384 VM_OBJECT_WUNLOCK(object); 385 386 return (KERN_SUCCESS); 387} 388 389void 390kmem_unback(vm_object_t object, vm_offset_t addr, vm_size_t size) --- 174 unchanged lines hidden --- | 384 } 385 VM_OBJECT_WUNLOCK(object); 386 387 return (KERN_SUCCESS); 388} 389 390void 391kmem_unback(vm_object_t object, vm_offset_t addr, vm_size_t size) --- 174 unchanged lines hidden --- |