/*- * Copyright (c) 2008 Marius Strobl * 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 __FBSDID("$FreeBSD$"); #include #include #include void sparc64_ad_firmware_geom_adjust(device_t dev, struct disk *disk) { /* * The Sun disk label only uses 16-bit fields for cylinders, * heads and sectors so the geometry of large IDE disks has * to be adjusted. If the disk is > 32GB at 16 heads and 63 * sectors, the sectors have to be adjusted to 255. If the * the disk is even > 128GB, additionally adjust the heads * to 255. * XXX the OpenSolaris dad(7D) driver limits the mediasize * to 128GB. */ if (disk->d_mediasize > (off_t)65535 * 16 * 63 * disk->d_sectorsize) disk->d_fwsectors = 255; if (disk->d_mediasize > (off_t)65535 * 16 * 255 * disk->d_sectorsize) disk->d_fwheads = 255; }