xref: /freebsd/sys/arm/include/pmap.h (revision be181ee2)
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 #include <machine/pmap-v6.h>
36 
37 #ifdef _KERNEL
38 #include <sys/systm.h>
39 
40 extern char *_tmppt;	/* poor name! */
41 
42 extern vm_offset_t virtual_avail;
43 extern vm_offset_t virtual_end;
44 
45 void *pmap_kenter_temporary(vm_paddr_t, int);
46 #define	pmap_page_is_write_mapped(m)	(((m)->a.flags & PGA_WRITEABLE) != 0)
47 void pmap_page_set_memattr(vm_page_t, vm_memattr_t);
48 
49 void *pmap_mapdev(vm_paddr_t, vm_size_t);
50 void pmap_unmapdev(void *, vm_size_t);
51 
52 static inline void *
53 pmap_mapdev_attr(vm_paddr_t addr, vm_size_t size, int attr)
54 {
55 	panic("%s is not implemented yet!\n", __func__);
56 }
57 
58 struct pcb;
59 void pmap_set_pcb_pagedir(pmap_t, struct pcb *);
60 
61 void pmap_kenter_device(vm_offset_t, vm_size_t, vm_paddr_t);
62 void pmap_kremove_device(vm_offset_t, vm_size_t);
63 
64 vm_paddr_t pmap_kextract(vm_offset_t);
65 #define vtophys(va)	pmap_kextract((vm_offset_t)(va))
66 
67 static inline int
68 pmap_vmspace_copy(pmap_t dst_pmap __unused, pmap_t src_pmap __unused)
69 {
70 
71 	return (0);
72 }
73 
74 #define	PMAP_ENTER_QUICK_LOCKED	0x10000000
75 
76 #define	pmap_vm_page_alloc_check(m)
77 
78 #endif	/* _KERNEL */
79 #endif	/* !_MACHINE_PMAP_H_ */
80