FreeBSD/Linux Kernel Cross Reference
sys/arm/include/pmap.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2016 Svatopluk Kraus
      * Copyright (c) 2016 Michal Meloun
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    
    #ifndef _MACHINE_PMAP_H_
    #define _MACHINE_PMAP_H_
    
    #if __ARM_ARCH >= 6
    #include <machine/pmap-v6.h>
    #else
    #include <machine/pmap-v4.h>
    #endif
    
    #ifdef _KERNEL
    #include <sys/systm.h>
    
    extern vm_paddr_t dump_avail[];
    extern vm_paddr_t phys_avail[];
    
    extern char *_tmppt;    /* poor name! */
    
    extern vm_offset_t virtual_avail;
    extern vm_offset_t virtual_end;
    
    void *pmap_kenter_temporary(vm_paddr_t, int);
    #define pmap_page_is_write_mapped(m)    (((m)->aflags & PGA_WRITEABLE) != 0)
    void pmap_page_set_memattr(vm_page_t, vm_memattr_t);
    
    void *pmap_mapdev(vm_paddr_t, vm_size_t);
    void pmap_unmapdev(vm_offset_t, vm_size_t);
    
    static inline void *
    pmap_mapdev_attr(vm_paddr_t addr, vm_size_t size, int attr)
    {
            panic("%s is not implemented yet!\n", __func__);
    }
    
    struct pcb;
    void pmap_set_pcb_pagedir(pmap_t, struct pcb *);
    
    void pmap_kenter_device(vm_offset_t, vm_size_t, vm_paddr_t);
    void pmap_kremove_device(vm_offset_t, vm_size_t);
    
    vm_paddr_t pmap_kextract(vm_offset_t);
    #define vtophys(va)     pmap_kextract((vm_offset_t)(va))
    
    static inline int
    pmap_vmspace_copy(pmap_t dst_pmap __unused, pmap_t src_pmap __unused)
    {
    
            return (0);
    }
    
    #endif  /* _KERNEL */
    #endif  /* !_MACHINE_PMAP_H_ */

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