Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
This commit is contained in:
Linus Torvalds
169
drivers/acpi/blacklist.c
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169
drivers/acpi/blacklist.c
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/*
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* blacklist.c
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*
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* Check to see if the given machine has a known bad ACPI BIOS
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* or if the BIOS is too old.
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*
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* Copyright (C) 2004 Len Brown <len.brown@intel.com>
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* Copyright (C) 2002 Andy Grover <andrew.grover@intel.com>
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/acpi.h>
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#include <acpi/acpi_bus.h>
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#include <linux/dmi.h>
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enum acpi_blacklist_predicates
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{
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all_versions,
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less_than_or_equal,
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equal,
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greater_than_or_equal,
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};
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struct acpi_blacklist_item
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{
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char oem_id[7];
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char oem_table_id[9];
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u32 oem_revision;
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acpi_table_type table;
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enum acpi_blacklist_predicates oem_revision_predicate;
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char *reason;
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u32 is_critical_error;
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};
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/*
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* POLICY: If *anything* doesn't work, put it on the blacklist.
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* If they are critical errors, mark it critical, and abort driver load.
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*/
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static struct acpi_blacklist_item acpi_blacklist[] __initdata =
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{
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/* Compaq Presario 1700 */
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{"PTLTD ", " DSDT ", 0x06040000, ACPI_DSDT, less_than_or_equal, "Multiple problems", 1},
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/* Sony FX120, FX140, FX150? */
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{"SONY ", "U0 ", 0x20010313, ACPI_DSDT, less_than_or_equal, "ACPI driver problem", 1},
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/* Compaq Presario 800, Insyde BIOS */
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{"INT440", "SYSFexxx", 0x00001001, ACPI_DSDT, less_than_or_equal, "Does not use _REG to protect EC OpRegions", 1},
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/* IBM 600E - _ADR should return 7, but it returns 1 */
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{"IBM ", "TP600E ", 0x00000105, ACPI_DSDT, less_than_or_equal, "Incorrect _ADR", 1},
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{"ASUS\0\0", "P2B-S ", 0, ACPI_DSDT, all_versions, "Bogus PCI routing", 1},
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{""}
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};
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#if CONFIG_ACPI_BLACKLIST_YEAR
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static int __init
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blacklist_by_year(void)
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{
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int year;
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char *s = dmi_get_system_info(DMI_BIOS_DATE);
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if (!s)
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return 0;
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if (!*s)
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return 0;
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s = strrchr(s, '/');
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if (!s)
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return 0;
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s += 1;
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year = simple_strtoul(s,NULL,0);
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if (year < 100) { /* 2-digit year */
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year += 1900;
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if (year < 1996) /* no dates < spec 1.0 */
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year += 100;
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}
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if (year < CONFIG_ACPI_BLACKLIST_YEAR) {
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printk(KERN_ERR PREFIX "BIOS age (%d) fails cutoff (%d), "
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"acpi=force is required to enable ACPI\n",
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year, CONFIG_ACPI_BLACKLIST_YEAR);
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return 1;
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}
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return 0;
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}
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#else
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static inline int blacklist_by_year(void) { return 0; }
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#endif
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int __init
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acpi_blacklisted(void)
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{
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int i = 0;
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int blacklisted = 0;
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struct acpi_table_header *table_header;
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while (acpi_blacklist[i].oem_id[0] != '\0')
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{
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if (acpi_get_table_header_early(acpi_blacklist[i].table, &table_header)) {
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i++;
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continue;
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}
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if (strncmp(acpi_blacklist[i].oem_id, table_header->oem_id, 6)) {
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i++;
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continue;
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}
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if (strncmp(acpi_blacklist[i].oem_table_id, table_header->oem_table_id, 8)) {
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i++;
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continue;
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}
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if ((acpi_blacklist[i].oem_revision_predicate == all_versions)
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|| (acpi_blacklist[i].oem_revision_predicate == less_than_or_equal
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&& table_header->oem_revision <= acpi_blacklist[i].oem_revision)
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|| (acpi_blacklist[i].oem_revision_predicate == greater_than_or_equal
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&& table_header->oem_revision >= acpi_blacklist[i].oem_revision)
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|| (acpi_blacklist[i].oem_revision_predicate == equal
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&& table_header->oem_revision == acpi_blacklist[i].oem_revision)) {
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printk(KERN_ERR PREFIX "Vendor \"%6.6s\" System \"%8.8s\" "
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"Revision 0x%x has a known ACPI BIOS problem.\n",
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acpi_blacklist[i].oem_id,
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acpi_blacklist[i].oem_table_id,
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acpi_blacklist[i].oem_revision);
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printk(KERN_ERR PREFIX "Reason: %s. This is a %s error\n",
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acpi_blacklist[i].reason,
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(acpi_blacklist[i].is_critical_error ? "non-recoverable" : "recoverable"));
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blacklisted = acpi_blacklist[i].is_critical_error;
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break;
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}
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else {
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i++;
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}
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}
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blacklisted += blacklist_by_year();
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return blacklisted;
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}
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