diff options
Diffstat (limited to 'util/flashrom/physmap.c')
-rw-r--r-- | util/flashrom/physmap.c | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/util/flashrom/physmap.c b/util/flashrom/physmap.c deleted file mode 100644 index 49e1bfc649..0000000000 --- a/util/flashrom/physmap.c +++ /dev/null @@ -1,96 +0,0 @@ -/* - * This file is part of the flashrom project. - * - * Copyright (C) 2009 Peter Stuge <peter@stuge.se> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <stdlib.h> -#include <errno.h> -#include "flash.h" - -#ifdef __DARWIN__ -#include <DirectIO/darwinio.h> - -#define MEM_DEV "DirectIO" - -void *sys_physmap(unsigned long phys_addr, size_t len) -{ - return map_physical(phys_addr, len); -} - -void physunmap(void *virt_addr, size_t len) -{ - unmap_physical(virt_addr, len); -} - -#else -#include <sys/mman.h> - -#if defined (__sun) && (defined(__i386) || defined(__amd64)) -# define MEM_DEV "/dev/xsvc" -#else -# define MEM_DEV "/dev/mem" -#endif - -static int fd_mem = -1; - -void *sys_physmap(unsigned long phys_addr, size_t len) -{ - void *virt_addr; - - if (-1 == fd_mem) { - /* Open the memory device UNCACHED. Important for MMIO. */ - if (-1 == (fd_mem = open(MEM_DEV, O_RDWR | O_SYNC))) { - perror("Critical error: open(" MEM_DEV ")"); - exit(2); - } - } - - virt_addr = mmap(0, len, PROT_WRITE | PROT_READ, MAP_SHARED, - fd_mem, (off_t)phys_addr); - return MAP_FAILED == virt_addr ? NULL : virt_addr; -} - -void physunmap(void *virt_addr, size_t len) -{ - munmap(virt_addr, len); -} -#endif - -void *physmap(const char *descr, unsigned long phys_addr, size_t len) -{ - void *virt_addr = sys_physmap(phys_addr, len); - - if (NULL == virt_addr) { - if (NULL == descr) - descr = "memory"; - fprintf(stderr, "Error accessing %s, 0x%lx bytes at 0x%08lx\n", descr, (unsigned long)len, phys_addr); - perror(MEM_DEV " mmap failed"); - if (EINVAL == errno) { - fprintf(stderr, "In Linux this error can be caused by the CONFIG_NONPROMISC_DEVMEM (<2.6.27),\n"); - fprintf(stderr, "CONFIG_STRICT_DEVMEM (>=2.6.27) and CONFIG_X86_PAT kernel options.\n"); - fprintf(stderr, "Please check if either is enabled in your kernel before reporting a failure.\n"); - fprintf(stderr, "You can override CONFIG_X86_PAT at boot with the nopat kernel parameter but\n"); - fprintf(stderr, "disabling the other option unfortunately requires a kernel recompile. Sorry!\n"); - } - exit(3); - } - - return virt_addr; -} |