drivers/acpi/blacklist.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  blacklist.c
   4  *
   5  *  Check to see if the given machine has a known bad ACPI BIOS
   6  *  or if the BIOS is too old.
   7  *  Check given machine against acpi_rev_dmi_table[].
   8  *
   9  *  Copyright (C) 2004 Len Brown <len.brown@intel.com>
  10  *  Copyright (C) 2002 Andy Grover <andrew.grover@intel.com>
  11  */
  12
  13 #include <linux/kernel.h>
  14 #include <linux/init.h>
  15 #include <linux/acpi.h>
  16 #include <linux/dmi.h>
  17
  18 #include "internal.h"
  19
  20 static const struct dmi_system_id acpi_rev_dmi_table[] __initconst;
  21
  22 /*
  23  * POLICY: If *anything* doesn't work, put it on the blacklist.
  24  *         If they are critical errors, mark it critical, and abort driver load.
  25  */
  26 static struct acpi_platform_list acpi_blacklist[] __initdata = {
  27         /* Compaq Presario 1700 */
  28         {"PTLTD ", "  DSDT  ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal,
  29          "Multiple problems", 1},
  30         /* Sony FX120, FX140, FX150? */
  31         {"SONY  ", "U0      ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal,
  32          "ACPI driver problem", 1},
  33         /* Compaq Presario 800, Insyde BIOS */
  34         {"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal,
  35          "Does not use _REG to protect EC OpRegions", 1},
  36         /* IBM 600E - _ADR should return 7, but it returns 1 */
  37         {"IBM   ", "TP600E  ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
  38          "Incorrect _ADR", 1},
  39
  40         { }
  41 };
  42
  43 int __init acpi_blacklisted(void)
  44 {
  45         int i;
  46         int blacklisted = 0;
  47
  48         i = acpi_match_platform_list(acpi_blacklist);
  49         if (i >= 0) {
  50                 pr_err(PREFIX "Vendor \"%6.6s\" System \"%8.8s\" Revision 0x%x has a known ACPI BIOS problem.\n",
  51                        acpi_blacklist[i].oem_id,
  52                        acpi_blacklist[i].oem_table_id,
  53                        acpi_blacklist[i].oem_revision);
  54
  55                 pr_err(PREFIX "Reason: %s. This is a %s error\n",
  56                        acpi_blacklist[i].reason,
  57                        (acpi_blacklist[i].data ?
  58                         "non-recoverable" : "recoverable"));
  59
  60                 blacklisted = acpi_blacklist[i].data;
  61         }
  62
  63         (void)early_acpi_osi_init();
  64         dmi_check_system(acpi_rev_dmi_table);
  65
  66         return blacklisted;
  67 }
  68 #ifdef CONFIG_DMI
  69 #ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
  70 static int __init dmi_enable_rev_override(const struct dmi_system_id *d)
  71 {
  72         printk(KERN_NOTICE PREFIX "DMI detected: %s (force ACPI _REV to 5)\n",
  73                d->ident);
  74         acpi_rev_override_setup(NULL);
  75         return 0;
  76 }
  77 #endif
  78
  79 static const struct dmi_system_id acpi_rev_dmi_table[] __initconst = {
  80 #ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
  81         /*
  82          * DELL XPS 13 (2015) switches sound between HDA and I2S
  83          * depending on the ACPI _REV callback. If userspace supports
  84          * I2S sufficiently (or if you do not care about sound), you
  85          * can safely disable this quirk.
  86          */
  87         {
  88          .callback = dmi_enable_rev_override,
  89          .ident = "DELL XPS 13 (2015)",
  90          .matches = {
  91                       DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
  92                       DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9343"),
  93                 },
  94         },
  95         {
  96          .callback = dmi_enable_rev_override,
  97          .ident = "DELL Precision 5520",
  98          .matches = {
  99                       DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 100                       DMI_MATCH(DMI_PRODUCT_NAME, "Precision 5520"),
 101                 },
 102         },
 103         {
 104          .callback = dmi_enable_rev_override,
 105          .ident = "DELL Precision 3520",
 106          .matches = {
 107                       DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 108                       DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3520"),
 109                 },
 110         },
 111         /*
 112          * Resolves a quirk with the Dell Latitude 3350 that
 113          * causes the ethernet adapter to not function.
 114          */
 115         {
 116          .callback = dmi_enable_rev_override,
 117          .ident = "DELL Latitude 3350",
 118          .matches = {
 119                       DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 120                       DMI_MATCH(DMI_PRODUCT_NAME, "Latitude 3350"),
 121                 },
 122         },
 123         {
 124          .callback = dmi_enable_rev_override,
 125          .ident = "DELL Inspiron 7537",
 126          .matches = {
 127                       DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 128                       DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7537"),
 129                 },
 130         },
 131 #endif
 132         {}
 133 };
 134
 135 #endif /* CONFIG_DMI */