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/*-
* Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
* Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <stand.h>
#include <stdint.h>
#include "api_public.h"
#include "glue.h"
/*
* MD primitives supporting placement of module data
*/
void *
uboot_vm_translate(vm_offset_t o) {
struct sys_info *si;
static uintptr_t start = 0;
static size_t size = 0;
int i;
if (size == 0) {
if ((si = ub_get_sys_info()) == NULL)
panic("could not retrieve system info");
/* Find start/size of largest DRAM block. */
for (i = 0; i < si->mr_no; i++) {
if (si->mr[i].flags == MR_ATTR_DRAM
&& si->mr[i].size > size) {
start = si->mr[i].start;
size = si->mr[i].size;
}
}
if (size <= 0)
panic("No suitable DRAM?\n");
/*
printf("Loading into memory region 0x%08X-0x%08X (%d MiB)\n",
start, start + size, size / 1024 / 1024);
*/
}
if (o > size)
panic("Address 0x%08jX bigger than size 0x%08X\n",
(intmax_t)o, size);
return (void *)(start + o);
}
ssize_t
uboot_copyin(const void *src, vm_offset_t dest, const size_t len)
{
bcopy(src, uboot_vm_translate(dest), len);
return (len);
}
ssize_t
uboot_copyout(const vm_offset_t src, void *dest, const size_t len)
{
bcopy(uboot_vm_translate(src), dest, len);
return (len);
}
ssize_t
uboot_readin(const int fd, vm_offset_t dest, const size_t len)
{
return (read(fd, uboot_vm_translate(dest), len));
}
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