xref: /freebsd/sys/arm/include/pmap.h (revision d6b92ffa)
1 /*-
2  * Copyright (c) 2016 Svatopluk Kraus
3  * Copyright (c) 2016 Michal Meloun
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 #ifndef _MACHINE_PMAP_H_
31 #define _MACHINE_PMAP_H_
32 
33 #if __ARM_ARCH >= 6
34 #include <machine/pmap-v6.h>
35 #else
36 #include <machine/pmap-v4.h>
37 #endif
38 
39 #ifdef _KERNEL
40 #include <sys/systm.h>
41 
42 extern vm_paddr_t dump_avail[];
43 extern vm_paddr_t phys_avail[];
44 
45 extern char *_tmppt;	/* poor name! */
46 
47 extern vm_offset_t virtual_avail;
48 extern vm_offset_t virtual_end;
49 
50 void *pmap_kenter_temporary(vm_paddr_t, int);
51 #define	pmap_page_is_write_mapped(m)	(((m)->aflags & PGA_WRITEABLE) != 0)
52 void pmap_page_set_memattr(vm_page_t, vm_memattr_t);
53 
54 void *pmap_mapdev(vm_paddr_t, vm_size_t);
55 void pmap_unmapdev(vm_offset_t, vm_size_t);
56 
57 static inline void *
58 pmap_mapdev_attr(vm_paddr_t addr, vm_size_t size, int attr)
59 {
60 	panic("%s is not implemented yet!\n", __func__);
61 }
62 
63 struct pcb;
64 void pmap_set_pcb_pagedir(pmap_t, struct pcb *);
65 
66 void pmap_kenter_device(vm_offset_t, vm_size_t, vm_paddr_t);
67 void pmap_kremove_device(vm_offset_t, vm_size_t);
68 
69 vm_paddr_t pmap_kextract(vm_offset_t);
70 #define vtophys(va)	pmap_kextract((vm_offset_t)(va))
71 
72 #endif	/* _KERNEL */
73 #endif	/* !_MACHINE_PMAP_H_ */
74