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 #define pr_fmt(fmt) "ACPI: " fmt
  14
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/acpi.h>
  18 #include <linux/dmi.h>
  19
  20 #include "internal.h"
  21
  22 #ifdef CONFIG_DMI
  23 static const struct dmi_system_id acpi_rev_dmi_table[] __initconst;
  24 #endif
  25
  26 /*
  27  * POLICY: If *anything* doesn't work, put it on the blacklist.
  28  *         If they are critical errors, mark it critical, and abort driver load.
  29  */
  30 static struct acpi_platform_list acpi_blacklist[] __initdata = {
  31         /* Compaq Presario 1700 */
  32         {"PTLTD ", "  DSDT  ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal,
  33          "Multiple problems", 1},
  34         /* Sony FX120, FX140, FX150? */
  35         {"SONY  ", "U0      ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal,
  36          "ACPI driver problem", 1},
  37         /* Compaq Presario 800, Insyde BIOS */
  38         {"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal,
  39          "Does not use _REG to protect EC OpRegions", 1},
  40         /* IBM 600E - _ADR should return 7, but it returns 1 */
  41         {"IBM   ", "TP600E  ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
  42          "Incorrect _ADR", 1},
  43
  44         { }
  45 };
  46
  47 int __init acpi_blacklisted(void)
  48 {
  49         int i;
  50         int blacklisted = 0;
  51
  52         i = acpi_match_platform_list(acpi_blacklist);
  53         if (i >= 0) {
  54                 pr_err("Vendor \"%6.6s\" System \"%8.8s\" Revision 0x%x has a known ACPI BIOS problem.\n",
  55                        acpi_blacklist[i].oem_id,
  56                        acpi_blacklist[i].oem_table_id,
  57                        acpi_blacklist[i].oem_revision);
  58
  59                 pr_err("Reason: %s. This is a %s error\n",
  60                        acpi_blacklist[i].reason,
  61                        (acpi_blacklist[i].data ?
  62                         "non-recoverable" : "recoverable"));
  63
  64                 blacklisted = acpi_blacklist[i].data;
  65         }
  66
  67         (void)early_acpi_osi_init();
  68 #ifdef CONFIG_DMI
  69         dmi_check_system(acpi_rev_dmi_table);
  70 #endif
  71
  72         return blacklisted;
  73 }
  74 #ifdef CONFIG_DMI
  75 #ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
  76 static int __init dmi_enable_rev_override(const struct dmi_system_id *d)
  77 {
  78         pr_notice("DMI detected: %s (force ACPI _REV to 5)\n", d->ident);
  79         acpi_rev_override_setup(NULL);
  80         return 0;
  81 }
  82 #endif
  83
  84 static const struct dmi_system_id acpi_rev_dmi_table[] __initconst = {
  85 #ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
  86         /*
  87          * DELL XPS 13 (2015) switches sound between HDA and I2S
  88          * depending on the ACPI _REV callback. If userspace supports
  89          * I2S sufficiently (or if you do not care about sound), you
  90          * can safely disable this quirk.
  91          */
  92         {
  93          .callback = dmi_enable_rev_override,
  94          .ident = "DELL XPS 13 (2015)",
  95          .matches = {
  96                       DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
  97                       DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9343"),
  98                 },
  99         },
 100         {
 101          .callback = dmi_enable_rev_override,
 102          .ident = "DELL Precision 5520",
 103          .matches = {
 104                       DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 105                       DMI_MATCH(DMI_PRODUCT_NAME, "Precision 5520"),
 106                 },
 107         },
 108         {
 109          .callback = dmi_enable_rev_override,
 110          .ident = "DELL Precision 3520",
 111          .matches = {
 112                       DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 113                       DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3520"),
 114                 },
 115         },
 116         /*
 117          * Resolves a quirk with the Dell Latitude 3350 that
 118          * causes the ethernet adapter to not function.
 119          */
 120         {
 121          .callback = dmi_enable_rev_override,
 122          .ident = "DELL Latitude 3350",
 123          .matches = {
 124                       DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 125                       DMI_MATCH(DMI_PRODUCT_NAME, "Latitude 3350"),
 126                 },
 127         },
 128         {
 129          .callback = dmi_enable_rev_override,
 130          .ident = "DELL Inspiron 7537",
 131          .matches = {
 132                       DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 133                       DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7537"),
 134                 },
 135         },
 136 #endif
 137         {}
 138 };
 139
 140 #endif /* CONFIG_DMI */