1/*- 2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> 3 * Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com> 4 * 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: --- 12 unchanged lines hidden (view full) --- 21 * OR 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__FBSDID("$FreeBSD: head/sys/boot/uboot/lib/copy.c 235694 2012-05-20 18:07:35Z kientzle $"); |
30 31#include <stand.h> |
32#include <stdint.h> |
33 |
34#include "api_public.h" 35#include "glue.h" 36 |
37/* 38 * MD primitives supporting placement of module data |
39 */ 40 |
41void * 42uboot_vm_translate(vm_offset_t o) { 43 struct sys_info *si; 44 static uintptr_t start = 0; 45 static size_t size = 0; 46 int i; 47 48 if (size == 0) { 49 if ((si = ub_get_sys_info()) == NULL) 50 panic("could not retrieve system info"); 51 52 /* Find start/size of largest DRAM block. */ 53 for (i = 0; i < si->mr_no; i++) { 54 if (si->mr[i].flags == MR_ATTR_DRAM 55 && si->mr[i].size > size) { 56 start = si->mr[i].start; 57 size = si->mr[i].size; 58 } 59 } 60 61 if (size <= 0) 62 panic("No suitable DRAM?\n"); 63 /* 64 printf("Loading into memory region 0x%08X-0x%08X (%d MiB)\n", 65 start, start + size, size / 1024 / 1024); 66 */ 67 } 68 if (o > size) 69 panic("Address 0x%08jX bigger than size 0x%08X\n", 70 (intmax_t)o, size); 71 return (void *)(start + o); 72} 73 |
74ssize_t 75uboot_copyin(const void *src, vm_offset_t dest, const size_t len) 76{ |
77 bcopy(src, uboot_vm_translate(dest), len); |
78 return (len); 79} 80 81ssize_t 82uboot_copyout(const vm_offset_t src, void *dest, const size_t len) 83{ |
84 bcopy(uboot_vm_translate(src), dest, len); |
85 return (len); 86} 87 88ssize_t 89uboot_readin(const int fd, vm_offset_t dest, const size_t len) 90{ |
91 return (read(fd, uboot_vm_translate(dest), len)); |
92} |