The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/i386/include/pmap_base.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2018 The FreeBSD Foundation
    5  *
    6  * This software was developed by Konstantin Belousov <kib@FreeBSD.org>
    7  * under sponsorship from the FreeBSD Foundation.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   28  * SUCH DAMAGE.
   29  *
   30  * $FreeBSD$
   31  */
   32 
   33 #ifndef _MACHINE_PMAP_BASE_H_
   34 #define _MACHINE_PMAP_BASE_H_
   35 
   36 /* Internal flags for pmap_mapdev_attr(). */
   37 #define MAPDEV_SETATTR          0x0000001       /* Modify existing attrs. */
   38 
   39 struct pmap_methods {
   40         void (*pm_ksetrw)(vm_offset_t);
   41         void (*pm_remap_lower)(bool);
   42         void (*pm_remap_lowptdi)(bool);
   43         void (*pm_align_superpage)(vm_object_t object, vm_ooffset_t offset,
   44             vm_offset_t *addr, vm_size_t size);
   45         vm_offset_t (*pm_quick_enter_page)(vm_page_t m);
   46         void (*pm_quick_remove_page)(vm_offset_t addr);
   47         void *(*pm_trm_alloc)(size_t size, int flags);
   48         void (*pm_trm_free)(void *addr, size_t size);
   49         vm_offset_t (*pm_get_map_low)(void);
   50         vm_offset_t (*pm_get_vm_maxuser_address)(void);
   51         vm_paddr_t (*pm_kextract)(vm_offset_t va);
   52         vm_paddr_t (*pm_pg_frame)(vm_paddr_t pa);
   53         void (*pm_sf_buf_map)(struct sf_buf *sf);
   54         void (*pm_cp_slow0_map)(vm_offset_t kaddr, int plen, vm_page_t *ma);
   55         u_int (*pm_get_kcr3)(void);
   56         u_int (*pm_get_cr3)(pmap_t);
   57         caddr_t (*pm_cmap3)(vm_paddr_t pa, u_int pte_flags);
   58         void (*pm_basemem_setup)(u_int basemem);
   59         void (*pm_set_nx)(void);
   60         void *(*pm_bios16_enter)(void);
   61         void (*pm_bios16_leave)(void *handle);
   62         void (*pm_bootstrap)(vm_paddr_t firstaddr);
   63         boolean_t (*pm_is_valid_memattr)(pmap_t, vm_memattr_t);
   64         int (*pm_cache_bits)(pmap_t, int, boolean_t);
   65         bool (*pm_ps_enabled)(pmap_t);
   66         void (*pm_pinit0)(pmap_t);
   67         int (*pm_pinit)(pmap_t);
   68         void (*pm_activate)(struct thread *);
   69         void (*pm_activate_boot)(pmap_t);
   70         void (*pm_advise)(pmap_t, vm_offset_t, vm_offset_t, int);
   71         void (*pm_clear_modify)(vm_page_t);
   72         int (*pm_change_attr)(vm_offset_t, vm_size_t, int);
   73         int (*pm_mincore)(pmap_t, vm_offset_t, vm_paddr_t *);
   74         void (*pm_copy)(pmap_t, pmap_t, vm_offset_t, vm_size_t, vm_offset_t);
   75         void (*pm_copy_page)(vm_page_t, vm_page_t);
   76         void (*pm_copy_pages)(vm_page_t [], vm_offset_t, vm_page_t [],
   77             vm_offset_t, int);
   78         void (*pm_zero_page)(vm_page_t);
   79         void (*pm_zero_page_area)(vm_page_t, int, int);
   80         int (*pm_enter)(pmap_t, vm_offset_t, vm_page_t, vm_prot_t, u_int,
   81             int8_t);
   82         void (*pm_enter_object)(pmap_t, vm_offset_t, vm_offset_t,
   83             vm_page_t, vm_prot_t);
   84         void (*pm_enter_quick)(pmap_t, vm_offset_t, vm_page_t, vm_prot_t);
   85         void *(*pm_kenter_temporary)(vm_paddr_t pa, int);
   86         void (*pm_object_init_pt)(pmap_t, vm_offset_t, vm_object_t,
   87             vm_pindex_t, vm_size_t);
   88         void (*pm_unwire)(pmap_t, vm_offset_t, vm_offset_t);
   89         boolean_t (*pm_page_exists_quick)(pmap_t, vm_page_t);
   90         int (*pm_page_wired_mappings)(vm_page_t);
   91         boolean_t (*pm_page_is_mapped)(vm_page_t);
   92         void (*pm_remove_pages)(pmap_t);
   93         boolean_t (*pm_is_modified)(vm_page_t);
   94         boolean_t (*pm_is_prefaultable)(pmap_t, vm_offset_t);
   95         boolean_t (*pm_is_referenced)(vm_page_t);
   96         void (*pm_remove_write)(vm_page_t);
   97         int (*pm_ts_referenced)(vm_page_t);
   98         void *(*pm_mapdev_attr)(vm_paddr_t, vm_size_t, int, int);
   99         void (*pm_unmapdev)(void *, vm_size_t);
  100         void (*pm_page_set_memattr)(vm_page_t, vm_memattr_t);
  101         vm_paddr_t (*pm_extract)(pmap_t, vm_offset_t);
  102         vm_page_t (*pm_extract_and_hold)(pmap_t, vm_offset_t, vm_prot_t);
  103         vm_offset_t (*pm_map)(vm_offset_t *, vm_paddr_t, vm_paddr_t, int);
  104         void (*pm_qenter)(vm_offset_t sva, vm_page_t *, int);
  105         void (*pm_qremove)(vm_offset_t, int);
  106         void (*pm_release)(pmap_t);
  107         void (*pm_protect)(pmap_t, vm_offset_t, vm_offset_t, vm_prot_t);
  108         void (*pm_remove)(pmap_t, vm_offset_t, vm_offset_t);
  109         void (*pm_remove_all)(vm_page_t);
  110         void (*pm_init)(void);
  111         void (*pm_init_pat)(void);
  112         void (*pm_growkernel)(vm_offset_t);
  113         void (*pm_invalidate_page)(pmap_t, vm_offset_t);
  114         void (*pm_invalidate_range)(pmap_t, vm_offset_t, vm_offset_t);
  115         void (*pm_invalidate_all)(pmap_t);
  116         void (*pm_invalidate_cache)(void);
  117         void (*pm_flush_page)(vm_page_t);
  118         void (*pm_kenter)(vm_offset_t, vm_paddr_t);
  119         void (*pm_kremove)(vm_offset_t);
  120         int (*pm_sysctl_kmaps)(SYSCTL_HANDLER_ARGS);
  121 };
  122 
  123 void    pmap_cold(void);
  124 void    pmap_pae_cold(void);
  125 void    pmap_nopae_cold(void);
  126 
  127 #endif

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