2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/boot/ofw/libofw/ofw_copy.c,v 1.11 2002/07/18 12:39:02 benno Exp $
27 * $DragonFly: src/sys/boot/ofw/libofw/ofw_copy.c,v 1.1 2003/11/10 06:08:37 dillon Exp $
30 * MD primitives supporting placement of module data
32 * XXX should check load address/size against memory top.
38 #define READIN_BUF (4 * 1024)
39 #define PAGE_SIZE 0x1000
40 #define PAGE_MASK 0x0fff
42 #define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
45 ofw_copyin(const void *src, vm_offset_t dest, const size_t len)
50 destp = (void *)(dest & ~PAGE_MASK);
51 dlen = roundup(len, PAGE_SIZE);
53 if (OF_call_method("claim", memory, 3, 1, destp, dlen, 0, &addr)
55 printf("ofw_copyin: physical claim failed\n");
59 if (OF_call_method("claim", mmu, 3, 1, destp, dlen, 0, &addr) == -1) {
60 printf("ofw_copyin: virtual claim failed\n");
64 if (OF_call_method("map", mmu, 4, 0, destp, destp, dlen, 0) == -1) {
65 printf("ofw_copyin: map failed\n");
69 bcopy(src, (void *)dest, len);
74 ofw_copyout(const vm_offset_t src, void *dest, const size_t len)
76 bcopy((void *)src, dest, len);
81 ofw_readin(const int fd, vm_offset_t dest, const size_t len)
84 size_t resid, chunk, get;
90 chunk = min(READIN_BUF, len);
93 printf("ofw_readin: buf malloc failed\n");
97 for (resid = len; resid > 0; resid -= got, p += got) {
98 get = min(chunk, resid);
99 got = read(fd, buf, get);
102 printf("ofw_readin: read failed\n");
106 ofw_copyin(buf, p, got);