blacklist.c (3794B)
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 23static 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 */ 30static 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 47int __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 76static 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 84static 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 */