1/*-
2 * Copyright (c) 2013 Robert N. M. Watson
3 * All rights reserved.
4 *
5 * This software was developed by SRI International and the University of
6 * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
7 * ("CTSRD"), as part of the DARPA CRASH research programme.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD$");
33
34#include <sys/param.h>
35
36#include <machine/elf.h>
37
38#include <stand.h>
39#include <bootstrap.h>
40#include <loader.h>
41#include <mips.h>
42
43static int	beri_arch_autoload(void);
44static ssize_t	beri_arch_copyin(const void *src, vm_offset_t va, size_t len);
45static ssize_t	beri_arch_copyout(vm_offset_t va, void *dst, size_t len);
46static uint64_t	beri_arch_loadaddr(u_int type, void *data, uint64_t addr);
47static ssize_t	beri_arch_readin(readin_handle_t fd, vm_offset_t va, size_t len);
48
49struct arch_switch archsw = {
50	.arch_autoload = beri_arch_autoload,
51	.arch_getdev = beri_arch_getdev,
52	.arch_copyin = beri_arch_copyin,
53	.arch_copyout = beri_arch_copyout,
54	.arch_loadaddr = beri_arch_loadaddr,
55	.arch_readin = beri_arch_readin,
56
57};
58
59static int
60beri_arch_autoload(void)
61{
62
63	return (0);
64}
65
66static ssize_t
67beri_arch_copyin(const void *src, vm_offset_t va, size_t len)
68{
69
70	memcpy((void *)va, src, len);
71	return (len);
72}
73
74static ssize_t
75beri_arch_copyout(vm_offset_t va, void *dst, size_t len)
76{
77
78	memcpy(dst, (void *)va, len);
79	return (len);
80}
81
82static uint64_t
83beri_arch_loadaddr(u_int type, void *data, uint64_t addr)
84{
85	uint64_t align;
86
87	/* Align ELF objects at page boundaries; others at cache lines. */
88	align = (type == LOAD_ELF) ? PAGE_SIZE : CACHE_LINE_SIZE;
89	return (roundup2(addr, align));
90}
91
92static ssize_t
93beri_arch_readin(readin_handle_t fd, vm_offset_t va, size_t len)
94{
95
96	return (VECTX_READ(fd, (void *)va, len));
97}
98