2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 1991 Regents of the University of California.
6 * Copyright (c) 1994 John S. Dyson
8 * Copyright (c) 1994 David Greenman
10 * Copyright (c) 2005-2010 Alan L. Cox <alc@cs.rice.edu>
11 * All rights reserved.
13 * This code is derived from software contributed to Berkeley by
14 * the Systems Programming Group of the University of Utah Computer
15 * Science Department and William Jolitz of UUNET Technologies Inc.
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions
20 * 1. Redistributions of source code must retain the above copyright
21 * notice, this list of conditions and the following disclaimer.
22 * 2. Redistributions in binary form must reproduce the above copyright
23 * notice, this list of conditions and the following disclaimer in the
24 * documentation and/or other materials provided with the distribution.
25 * 3. All advertising materials mentioning features or use of this software
26 * must display the following acknowledgement:
27 * This product includes software developed by the University of
28 * California, Berkeley and its contributors.
29 * 4. Neither the name of the University nor the names of its contributors
30 * may be used to endorse or promote products derived from this software
31 * without specific prior written permission.
33 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
34 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
35 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
36 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
37 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
38 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
39 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
41 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
42 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
45 * from: @(#)pmap.c 7.7 (Berkeley) 5/12/91
48 * Copyright (c) 2003 Networks Associates Technology, Inc.
49 * All rights reserved.
50 * Copyright (c) 2018 The FreeBSD Foundation
51 * All rights reserved.
53 * This software was developed for the FreeBSD Project by Jake Burkholder,
54 * Safeport Network Services, and Network Associates Laboratories, the
55 * Security Research Division of Network Associates, Inc. under
56 * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA
57 * CHATS research program.
59 * Portions of this software were developed by
60 * Konstantin Belousov <kib@FreeBSD.org> under sponsorship from
61 * the FreeBSD Foundation.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
66 * 1. Redistributions of source code must retain the above copyright
67 * notice, this list of conditions and the following disclaimer.
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in the
70 * documentation and/or other materials provided with the distribution.
72 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
73 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
74 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
75 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
76 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
77 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
78 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
79 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
80 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
81 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
85 #include <sys/cdefs.h>
86 __FBSDID("$FreeBSD$");
94 #include <sys/param.h>
95 #include <sys/systm.h>
96 #include <sys/kernel.h>
97 #include <sys/vmmeter.h>
98 #include <sys/sysctl.h>
99 #include <machine/bootinfo.h>
100 #include <machine/cpu.h>
101 #include <machine/cputypes.h>
102 #include <machine/md_var.h>
105 #include <machine/intr_machdep.h>
106 #include <x86/apicvar.h>
108 #include <x86/ifunc.h>
110 static SYSCTL_NODE(_vm, OID_AUTO, pmap, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
111 "VM/pmap parameters");
113 #include <machine/vmparam.h>
115 #include <vm/vm_page.h>
117 #include <machine/pmap_base.h>
119 vm_offset_t virtual_avail; /* VA of first avail page (after kernel bss) */
120 vm_offset_t virtual_end; /* VA of last avail page (end of kernel AS) */
122 int unmapped_buf_allowed = 1;
126 u_long physfree; /* phys addr of next free page */
127 u_long vm86phystk; /* PA of vm86/bios stack */
128 u_long vm86paddr; /* address of vm86 region */
129 int vm86pa; /* phys addr of vm86 region */
130 u_long KERNend; /* phys addr end of kernel (just after bss) */
131 u_long KPTphys; /* phys addr of kernel page tables */
133 vm_offset_t kernel_vm_end;
135 int i386_pmap_VM_NFREEORDER;
136 int i386_pmap_VM_LEVEL_0_ORDER;
137 int i386_pmap_PDRSHIFT;
140 SYSCTL_INT(_vm_pmap, OID_AUTO, pat_works, CTLFLAG_RD,
142 "Is page attribute table fully functional?");
144 int pg_ps_enabled = 1;
145 SYSCTL_INT(_vm_pmap, OID_AUTO, pg_ps_enabled, CTLFLAG_RDTUN | CTLFLAG_NOFETCH,
147 "Are large page mappings enabled?");
149 int pv_entry_max = 0;
150 SYSCTL_INT(_vm_pmap, OID_AUTO, pv_entry_max, CTLFLAG_RD,
152 "Max number of PV entries");
154 int pv_entry_count = 0;
155 SYSCTL_INT(_vm_pmap, OID_AUTO, pv_entry_count, CTLFLAG_RD,
157 "Current number of pv entries");
159 #ifndef PMAP_SHPGPERPROC
160 #define PMAP_SHPGPERPROC 200
163 int shpgperproc = PMAP_SHPGPERPROC;
164 SYSCTL_INT(_vm_pmap, OID_AUTO, shpgperproc, CTLFLAG_RD,
166 "Page share factor per proc");
168 static SYSCTL_NODE(_vm_pmap, OID_AUTO, pde, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
169 "2/4MB page mapping counters");
171 u_long pmap_pde_demotions;
172 SYSCTL_ULONG(_vm_pmap_pde, OID_AUTO, demotions, CTLFLAG_RD,
173 &pmap_pde_demotions, 0,
174 "2/4MB page demotions");
176 u_long pmap_pde_mappings;
177 SYSCTL_ULONG(_vm_pmap_pde, OID_AUTO, mappings, CTLFLAG_RD,
178 &pmap_pde_mappings, 0,
179 "2/4MB page mappings");
181 u_long pmap_pde_p_failures;
182 SYSCTL_ULONG(_vm_pmap_pde, OID_AUTO, p_failures, CTLFLAG_RD,
183 &pmap_pde_p_failures, 0,
184 "2/4MB page promotion failures");
186 u_long pmap_pde_promotions;
187 SYSCTL_ULONG(_vm_pmap_pde, OID_AUTO, promotions, CTLFLAG_RD,
188 &pmap_pde_promotions, 0,
189 "2/4MB page promotions");
193 SYSCTL_INT(_debug, OID_AUTO, PMAP1changedcpu, CTLFLAG_RD,
195 "Number of times pmap_pte_quick changed CPU with same PMAP1");
199 SYSCTL_INT(_debug, OID_AUTO, PMAP1changed, CTLFLAG_RD,
201 "Number of times pmap_pte_quick changed PMAP1");
203 SYSCTL_INT(_debug, OID_AUTO, PMAP1unchanged, CTLFLAG_RD,
205 "Number of times pmap_pte_quick didn't change PMAP1");
208 kvm_size(SYSCTL_HANDLER_ARGS)
212 ksize = VM_MAX_KERNEL_ADDRESS - KERNBASE;
213 return (sysctl_handle_long(oidp, &ksize, 0, req));
215 SYSCTL_PROC(_vm, OID_AUTO, kvm_size, CTLTYPE_LONG | CTLFLAG_RD | CTLFLAG_MPSAFE,
216 0, 0, kvm_size, "IU",
220 kvm_free(SYSCTL_HANDLER_ARGS)
224 kfree = VM_MAX_KERNEL_ADDRESS - kernel_vm_end;
225 return (sysctl_handle_long(oidp, &kfree, 0, req));
227 SYSCTL_PROC(_vm, OID_AUTO, kvm_free, CTLTYPE_LONG | CTLFLAG_RD | CTLFLAG_MPSAFE,
228 0, 0, kvm_free, "IU",
229 "Amount of KVM free");
232 int pc_chunk_count, pc_chunk_allocs, pc_chunk_frees, pc_chunk_tryfail;
233 long pv_entry_frees, pv_entry_allocs;
236 SYSCTL_INT(_vm_pmap, OID_AUTO, pc_chunk_count, CTLFLAG_RD,
238 "Current number of pv entry chunks");
239 SYSCTL_INT(_vm_pmap, OID_AUTO, pc_chunk_allocs, CTLFLAG_RD,
241 "Current number of pv entry chunks allocated");
242 SYSCTL_INT(_vm_pmap, OID_AUTO, pc_chunk_frees, CTLFLAG_RD,
244 "Current number of pv entry chunks frees");
245 SYSCTL_INT(_vm_pmap, OID_AUTO, pc_chunk_tryfail, CTLFLAG_RD,
246 &pc_chunk_tryfail, 0,
247 "Number of times tried to get a chunk page but failed.");
248 SYSCTL_LONG(_vm_pmap, OID_AUTO, pv_entry_frees, CTLFLAG_RD,
250 "Current number of pv entry frees");
251 SYSCTL_LONG(_vm_pmap, OID_AUTO, pv_entry_allocs, CTLFLAG_RD,
253 "Current number of pv entry allocs");
254 SYSCTL_INT(_vm_pmap, OID_AUTO, pv_entry_spare, CTLFLAG_RD,
256 "Current number of spare pv entries");
259 struct pmap kernel_pmap_store;
260 static struct pmap_methods *pmap_methods_ptr;
263 sysctl_kmaps(SYSCTL_HANDLER_ARGS)
265 return (pmap_methods_ptr->pm_sysctl_kmaps(oidp, arg1, arg2, req));
267 SYSCTL_OID(_vm_pmap, OID_AUTO, kernel_maps,
268 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE,
269 NULL, 0, sysctl_kmaps, "A",
270 "Dump kernel address layout");
274 * Initialize a vm_page's machine-dependent fields.
277 pmap_page_init(vm_page_t m)
280 TAILQ_INIT(&m->md.pv_list);
281 m->md.pat_mode = PAT_WRITE_BACK;
291 static void pmap_invalidate_cache_range_selfsnoop(vm_offset_t sva,
293 static void pmap_invalidate_cache_range_all(vm_offset_t sva,
297 pmap_flush_page(vm_page_t m)
300 pmap_methods_ptr->pm_flush_page(m);
303 DEFINE_IFUNC(, void, pmap_invalidate_cache_range, (vm_offset_t, vm_offset_t))
306 if ((cpu_feature & CPUID_SS) != 0)
307 return (pmap_invalidate_cache_range_selfsnoop);
308 if ((cpu_feature & CPUID_CLFSH) != 0)
309 return (pmap_force_invalidate_cache_range);
310 return (pmap_invalidate_cache_range_all);
313 #define PMAP_CLFLUSH_THRESHOLD (2 * 1024 * 1024)
316 pmap_invalidate_cache_range_check_align(vm_offset_t sva, vm_offset_t eva)
319 KASSERT((sva & PAGE_MASK) == 0,
320 ("pmap_invalidate_cache_range: sva not page-aligned"));
321 KASSERT((eva & PAGE_MASK) == 0,
322 ("pmap_invalidate_cache_range: eva not page-aligned"));
326 pmap_invalidate_cache_range_selfsnoop(vm_offset_t sva, vm_offset_t eva)
329 pmap_invalidate_cache_range_check_align(sva, eva);
333 pmap_force_invalidate_cache_range(vm_offset_t sva, vm_offset_t eva)
336 sva &= ~(vm_offset_t)(cpu_clflush_line_size - 1);
337 if (eva - sva >= PMAP_CLFLUSH_THRESHOLD) {
339 * The supplied range is bigger than 2MB.
340 * Globally invalidate cache.
342 pmap_invalidate_cache();
348 * XXX: Some CPUs fault, hang, or trash the local APIC
349 * registers if we use CLFLUSH on the local APIC
350 * range. The local APIC is always uncached, so we
351 * don't need to flush for that range anyway.
353 if (pmap_kextract(sva) == lapic_paddr)
357 if ((cpu_stdext_feature & CPUID_STDEXT_CLFLUSHOPT) != 0) {
359 * Do per-cache line flush. Use the sfence
360 * instruction to insure that previous stores are
361 * included in the write-back. The processor
362 * propagates flush to other processors in the cache
366 for (; sva < eva; sva += cpu_clflush_line_size)
371 * Writes are ordered by CLFLUSH on Intel CPUs.
373 if (cpu_vendor_id != CPU_VENDOR_INTEL)
375 for (; sva < eva; sva += cpu_clflush_line_size)
377 if (cpu_vendor_id != CPU_VENDOR_INTEL)
383 pmap_invalidate_cache_range_all(vm_offset_t sva, vm_offset_t eva)
386 pmap_invalidate_cache_range_check_align(sva, eva);
387 pmap_invalidate_cache();
391 pmap_invalidate_cache_pages(vm_page_t *pages, int count)
395 if (count >= PMAP_CLFLUSH_THRESHOLD / PAGE_SIZE ||
396 (cpu_feature & CPUID_CLFSH) == 0) {
397 pmap_invalidate_cache();
399 for (i = 0; i < count; i++)
400 pmap_flush_page(pages[i]);
405 pmap_ksetrw(vm_offset_t va)
408 pmap_methods_ptr->pm_ksetrw(va);
412 pmap_remap_lower(bool enable)
415 pmap_methods_ptr->pm_remap_lower(enable);
419 pmap_remap_lowptdi(bool enable)
422 pmap_methods_ptr->pm_remap_lowptdi(enable);
426 pmap_align_superpage(vm_object_t object, vm_ooffset_t offset,
427 vm_offset_t *addr, vm_size_t size)
430 return (pmap_methods_ptr->pm_align_superpage(object, offset,
435 pmap_quick_enter_page(vm_page_t m)
438 return (pmap_methods_ptr->pm_quick_enter_page(m));
442 pmap_quick_remove_page(vm_offset_t addr)
445 return (pmap_methods_ptr->pm_quick_remove_page(addr));
449 pmap_trm_alloc(size_t size, int flags)
452 return (pmap_methods_ptr->pm_trm_alloc(size, flags));
456 pmap_trm_free(void *addr, size_t size)
459 pmap_methods_ptr->pm_trm_free(addr, size);
463 pmap_sync_icache(pmap_t pm, vm_offset_t va, vm_size_t sz)
468 pmap_get_map_low(void)
471 return (pmap_methods_ptr->pm_get_map_low());
475 pmap_get_vm_maxuser_address(void)
478 return (pmap_methods_ptr->pm_get_vm_maxuser_address());
482 pmap_kextract(vm_offset_t va)
485 return (pmap_methods_ptr->pm_kextract(va));
489 pmap_pg_frame(vm_paddr_t pa)
492 return (pmap_methods_ptr->pm_pg_frame(pa));
496 pmap_sf_buf_map(struct sf_buf *sf)
499 pmap_methods_ptr->pm_sf_buf_map(sf);
503 pmap_cp_slow0_map(vm_offset_t kaddr, int plen, vm_page_t *ma)
506 pmap_methods_ptr->pm_cp_slow0_map(kaddr, plen, ma);
513 return (pmap_methods_ptr->pm_get_kcr3());
517 pmap_get_cr3(pmap_t pmap)
520 return (pmap_methods_ptr->pm_get_cr3(pmap));
524 pmap_cmap3(vm_paddr_t pa, u_int pte_flags)
527 return (pmap_methods_ptr->pm_cmap3(pa, pte_flags));
531 pmap_basemem_setup(u_int basemem)
534 pmap_methods_ptr->pm_basemem_setup(basemem);
541 pmap_methods_ptr->pm_set_nx();
545 pmap_bios16_enter(void)
548 return (pmap_methods_ptr->pm_bios16_enter());
552 pmap_bios16_leave(void *handle)
555 pmap_methods_ptr->pm_bios16_leave(handle);
559 pmap_bootstrap(vm_paddr_t firstaddr)
562 pmap_methods_ptr->pm_bootstrap(firstaddr);
566 pmap_is_valid_memattr(pmap_t pmap, vm_memattr_t mode)
569 return (pmap_methods_ptr->pm_is_valid_memattr(pmap, mode));
573 pmap_cache_bits(pmap_t pmap, int mode, boolean_t is_pde)
576 return (pmap_methods_ptr->pm_cache_bits(pmap, mode, is_pde));
580 pmap_ps_enabled(pmap_t pmap)
583 return (pmap_methods_ptr->pm_ps_enabled(pmap));
587 pmap_pinit0(pmap_t pmap)
590 pmap_methods_ptr->pm_pinit0(pmap);
594 pmap_pinit(pmap_t pmap)
597 return (pmap_methods_ptr->pm_pinit(pmap));
601 pmap_activate(struct thread *td)
604 pmap_methods_ptr->pm_activate(td);
608 pmap_activate_boot(pmap_t pmap)
611 pmap_methods_ptr->pm_activate_boot(pmap);
615 pmap_advise(pmap_t pmap, vm_offset_t sva, vm_offset_t eva, int advice)
618 pmap_methods_ptr->pm_advise(pmap, sva, eva, advice);
622 pmap_clear_modify(vm_page_t m)
625 pmap_methods_ptr->pm_clear_modify(m);
629 pmap_change_attr(vm_offset_t va, vm_size_t size, int mode)
632 return (pmap_methods_ptr->pm_change_attr(va, size, mode));
636 pmap_mincore(pmap_t pmap, vm_offset_t addr, vm_paddr_t *pap)
639 return (pmap_methods_ptr->pm_mincore(pmap, addr, pap));
643 pmap_copy(pmap_t dst_pmap, pmap_t src_pmap, vm_offset_t dst_addr, vm_size_t len,
644 vm_offset_t src_addr)
647 pmap_methods_ptr->pm_copy(dst_pmap, src_pmap, dst_addr, len, src_addr);
651 pmap_copy_page(vm_page_t src, vm_page_t dst)
654 pmap_methods_ptr->pm_copy_page(src, dst);
658 pmap_copy_pages(vm_page_t ma[], vm_offset_t a_offset, vm_page_t mb[],
659 vm_offset_t b_offset, int xfersize)
662 pmap_methods_ptr->pm_copy_pages(ma, a_offset, mb, b_offset, xfersize);
666 pmap_zero_page(vm_page_t m)
669 pmap_methods_ptr->pm_zero_page(m);
673 pmap_zero_page_area(vm_page_t m, int off, int size)
676 pmap_methods_ptr->pm_zero_page_area(m, off, size);
680 pmap_enter(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_prot_t prot,
681 u_int flags, int8_t psind)
684 return (pmap_methods_ptr->pm_enter(pmap, va, m, prot, flags, psind));
688 pmap_enter_object(pmap_t pmap, vm_offset_t start, vm_offset_t end,
689 vm_page_t m_start, vm_prot_t prot)
692 pmap_methods_ptr->pm_enter_object(pmap, start, end, m_start, prot);
696 pmap_enter_quick(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_prot_t prot)
699 pmap_methods_ptr->pm_enter_quick(pmap, va, m, prot);
703 pmap_kenter_temporary(vm_paddr_t pa, int i)
706 return (pmap_methods_ptr->pm_kenter_temporary(pa, i));
710 pmap_object_init_pt(pmap_t pmap, vm_offset_t addr, vm_object_t object,
711 vm_pindex_t pindex, vm_size_t size)
714 pmap_methods_ptr->pm_object_init_pt(pmap, addr, object, pindex, size);
718 pmap_unwire(pmap_t pmap, vm_offset_t sva, vm_offset_t eva)
721 pmap_methods_ptr->pm_unwire(pmap, sva, eva);
725 pmap_page_exists_quick(pmap_t pmap, vm_page_t m)
728 return (pmap_methods_ptr->pm_page_exists_quick(pmap, m));
732 pmap_page_wired_mappings(vm_page_t m)
735 return (pmap_methods_ptr->pm_page_wired_mappings(m));
739 pmap_page_is_mapped(vm_page_t m)
742 return (pmap_methods_ptr->pm_page_is_mapped(m));
746 pmap_remove_pages(pmap_t pmap)
749 pmap_methods_ptr->pm_remove_pages(pmap);
753 pmap_is_modified(vm_page_t m)
756 return (pmap_methods_ptr->pm_is_modified(m));
760 pmap_is_prefaultable(pmap_t pmap, vm_offset_t addr)
763 return (pmap_methods_ptr->pm_is_prefaultable(pmap, addr));
767 pmap_is_referenced(vm_page_t m)
770 return (pmap_methods_ptr->pm_is_referenced(m));
774 pmap_remove_write(vm_page_t m)
777 pmap_methods_ptr->pm_remove_write(m);
781 pmap_ts_referenced(vm_page_t m)
784 return (pmap_methods_ptr->pm_ts_referenced(m));
788 pmap_mapdev_attr(vm_paddr_t pa, vm_size_t size, int mode)
791 return (pmap_methods_ptr->pm_mapdev_attr(pa, size, mode,
796 pmap_mapdev(vm_paddr_t pa, vm_size_t size)
799 return (pmap_methods_ptr->pm_mapdev_attr(pa, size, PAT_UNCACHEABLE,
804 pmap_mapbios(vm_paddr_t pa, vm_size_t size)
807 return (pmap_methods_ptr->pm_mapdev_attr(pa, size, PAT_WRITE_BACK, 0));
811 pmap_unmapdev(vm_offset_t va, vm_size_t size)
814 pmap_methods_ptr->pm_unmapdev(va, size);
818 pmap_page_set_memattr(vm_page_t m, vm_memattr_t ma)
821 pmap_methods_ptr->pm_page_set_memattr(m, ma);
825 pmap_extract(pmap_t pmap, vm_offset_t va)
828 return (pmap_methods_ptr->pm_extract(pmap, va));
832 pmap_extract_and_hold(pmap_t pmap, vm_offset_t va, vm_prot_t prot)
835 return (pmap_methods_ptr->pm_extract_and_hold(pmap, va, prot));
839 pmap_map(vm_offset_t *virt, vm_paddr_t start, vm_paddr_t end, int prot)
842 return (pmap_methods_ptr->pm_map(virt, start, end, prot));
846 pmap_qenter(vm_offset_t sva, vm_page_t *ma, int count)
849 pmap_methods_ptr->pm_qenter(sva, ma, count);
853 pmap_qremove(vm_offset_t sva, int count)
856 pmap_methods_ptr->pm_qremove(sva, count);
860 pmap_release(pmap_t pmap)
863 pmap_methods_ptr->pm_release(pmap);
867 pmap_remove(pmap_t pmap, vm_offset_t sva, vm_offset_t eva)
870 pmap_methods_ptr->pm_remove(pmap, sva, eva);
874 pmap_protect(pmap_t pmap, vm_offset_t sva, vm_offset_t eva, vm_prot_t prot)
877 pmap_methods_ptr->pm_protect(pmap, sva, eva, prot);
881 pmap_remove_all(vm_page_t m)
884 pmap_methods_ptr->pm_remove_all(m);
891 pmap_methods_ptr->pm_init();
898 pmap_methods_ptr->pm_init_pat();
902 pmap_growkernel(vm_offset_t addr)
905 pmap_methods_ptr->pm_growkernel(addr);
909 pmap_invalidate_page(pmap_t pmap, vm_offset_t va)
912 pmap_methods_ptr->pm_invalidate_page(pmap, va);
916 pmap_invalidate_range(pmap_t pmap, vm_offset_t sva, vm_offset_t eva)
919 pmap_methods_ptr->pm_invalidate_range(pmap, sva, eva);
923 pmap_invalidate_all(pmap_t pmap)
926 pmap_methods_ptr->pm_invalidate_all(pmap);
930 pmap_invalidate_cache(void)
933 pmap_methods_ptr->pm_invalidate_cache();
937 pmap_kenter(vm_offset_t va, vm_paddr_t pa)
940 pmap_methods_ptr->pm_kenter(va, pa);
944 pmap_kremove(vm_offset_t va)
947 pmap_methods_ptr->pm_kremove(va);
950 extern struct pmap_methods pmap_pae_methods, pmap_nopae_methods;
952 SYSCTL_INT(_vm_pmap, OID_AUTO, pae_mode, CTLFLAG_RDTUN | CTLFLAG_NOFETCH,
960 init_static_kenv((char *)bootinfo.bi_envp, 0);
961 pae_mode = (cpu_feature & CPUID_PAE) != 0;
963 TUNABLE_INT_FETCH("vm.pmap.pae_mode", &pae_mode);
965 pmap_methods_ptr = &pmap_pae_methods;
968 pmap_methods_ptr = &pmap_nopae_methods;