1 /* $NetBSD: rump_generic_pmap.c,v 1.7 2022/08/21 22:28:26 riastradh Exp $ */
2
3 /*
4 * Copyright (c) 2010 Antti Kantee. 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 ``AS IS'' AND ANY EXPRESS
16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * 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 OR
21 * 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
28 #include <sys/cdefs.h>
29 __KERNEL_RCSID(0, "$NetBSD: rump_generic_pmap.c,v 1.7 2022/08/21 22:28:26 riastradh Exp $");
30
31 #include <sys/param.h>
32
33 #include <uvm/uvm_extern.h>
34
35 #include <rump-sys/kern.h>
36
37 /*
38 * This is the MI pmap implementation for rump kernels. It's used only by
39 * architectures which do not conform to the kernel ABI.
40 */
41
42 void
pmap_kenter_pa(vaddr_t va,paddr_t pa,vm_prot_t prot,u_int fl)43 pmap_kenter_pa(vaddr_t va, paddr_t pa, vm_prot_t prot, u_int fl)
44 {
45
46 panic("%s: unavailable", __func__);
47 }
48
49 void
pmap_kremove(vaddr_t va,vsize_t size)50 pmap_kremove(vaddr_t va, vsize_t size)
51 {
52
53 panic("%s: unavailable", __func__);
54 }
55
56 int
pmap_enter(pmap_t pmap,vaddr_t va,paddr_t pa,vm_prot_t prot,u_int flags)57 pmap_enter(pmap_t pmap, vaddr_t va, paddr_t pa, vm_prot_t prot, u_int flags)
58 {
59
60 panic("%s: unavailable", __func__);
61 }
62
63 void
pmap_remove(pmap_t pmap,vaddr_t sva,vaddr_t eva)64 pmap_remove(pmap_t pmap, vaddr_t sva, vaddr_t eva)
65 {
66
67 panic("%s: unavailable", __func__);
68 }
69
70 bool
pmap_extract(pmap_t pmap,vaddr_t va,paddr_t * pap)71 pmap_extract(pmap_t pmap, vaddr_t va, paddr_t *pap)
72 {
73
74 *pap = va;
75 return true;
76 }
77
78 void
pmap_page_protect(struct vm_page * pg,vm_prot_t prot)79 pmap_page_protect(struct vm_page *pg, vm_prot_t prot)
80 {
81
82 /* nada */
83 }
84
85 bool
pmap_clear_modify(struct vm_page * pg)86 pmap_clear_modify(struct vm_page *pg)
87 {
88
89 return false;
90 }
91
92 #ifndef pmap_resident_count
93 long
pmap_resident_count(struct pmap * pmap)94 pmap_resident_count(struct pmap *pmap)
95
96 {
97 return 0;
98 }
99 #endif
100
101 #ifndef pmap_wired_count
102 long
pmap_wired_count(struct pmap * pmap)103 pmap_wired_count(struct pmap *pmap)
104 {
105
106 return 0;
107 }
108 #endif
109