xref: /freebsd/sys/arm/include/pmap.h (revision 780fb4a2)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2016 Svatopluk Kraus
5  * Copyright (c) 2016 Michal Meloun
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  */
31 
32 #ifndef _MACHINE_PMAP_H_
33 #define _MACHINE_PMAP_H_
34 
35 #if __ARM_ARCH >= 6
36 #include <machine/pmap-v6.h>
37 #else
38 #include <machine/pmap-v4.h>
39 #endif
40 
41 #ifdef _KERNEL
42 #include <sys/systm.h>
43 
44 extern vm_paddr_t dump_avail[];
45 extern vm_paddr_t phys_avail[];
46 
47 extern char *_tmppt;	/* poor name! */
48 
49 extern vm_offset_t virtual_avail;
50 extern vm_offset_t virtual_end;
51 
52 void *pmap_kenter_temporary(vm_paddr_t, int);
53 #define	pmap_page_is_write_mapped(m)	(((m)->aflags & PGA_WRITEABLE) != 0)
54 void pmap_page_set_memattr(vm_page_t, vm_memattr_t);
55 
56 void *pmap_mapdev(vm_paddr_t, vm_size_t);
57 void pmap_unmapdev(vm_offset_t, vm_size_t);
58 
59 static inline void *
60 pmap_mapdev_attr(vm_paddr_t addr, vm_size_t size, int attr)
61 {
62 	panic("%s is not implemented yet!\n", __func__);
63 }
64 
65 struct pcb;
66 void pmap_set_pcb_pagedir(pmap_t, struct pcb *);
67 
68 void pmap_kenter_device(vm_offset_t, vm_size_t, vm_paddr_t);
69 void pmap_kremove_device(vm_offset_t, vm_size_t);
70 
71 vm_paddr_t pmap_kextract(vm_offset_t);
72 #define vtophys(va)	pmap_kextract((vm_offset_t)(va))
73 
74 #endif	/* _KERNEL */
75 #endif	/* !_MACHINE_PMAP_H_ */
76