diff options
Diffstat (limited to 'drivers/acpi/blacklist.c')
| -rw-r--r-- | drivers/acpi/blacklist.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c new file mode 100644 index 0000000000..a558d24fb7 --- /dev/null +++ b/drivers/acpi/blacklist.c @@ -0,0 +1,140 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * blacklist.c + * + * Check to see if the given machine has a known bad ACPI BIOS + * or if the BIOS is too old. + * Check given machine against acpi_rev_dmi_table[]. + * + * Copyright (C) 2004 Len Brown <len.brown@intel.com> + * Copyright (C) 2002 Andy Grover <andrew.grover@intel.com> + */ + +#define pr_fmt(fmt) "ACPI: " fmt + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/acpi.h> +#include <linux/dmi.h> + +#include "internal.h" + +#ifdef CONFIG_DMI +static const struct dmi_system_id acpi_rev_dmi_table[] __initconst; +#endif + +/* + * POLICY: If *anything* doesn't work, put it on the blacklist. + * If they are critical errors, mark it critical, and abort driver load. + */ +static struct acpi_platform_list acpi_blacklist[] __initdata = { + /* Compaq Presario 1700 */ + {"PTLTD ", " DSDT ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal, + "Multiple problems", 1}, + /* Sony FX120, FX140, FX150? */ + {"SONY ", "U0 ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal, + "ACPI driver problem", 1}, + /* Compaq Presario 800, Insyde BIOS */ + {"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal, + "Does not use _REG to protect EC OpRegions", 1}, + /* IBM 600E - _ADR should return 7, but it returns 1 */ + {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal, + "Incorrect _ADR", 1}, + + { } +}; + +int __init acpi_blacklisted(void) +{ + int i; + int blacklisted = 0; + + i = acpi_match_platform_list(acpi_blacklist); + if (i >= 0) { + pr_err("Vendor \"%6.6s\" System \"%8.8s\" Revision 0x%x has a known ACPI BIOS problem.\n", + acpi_blacklist[i].oem_id, + acpi_blacklist[i].oem_table_id, + acpi_blacklist[i].oem_revision); + + pr_err("Reason: %s. This is a %s error\n", + acpi_blacklist[i].reason, + (acpi_blacklist[i].data ? + "non-recoverable" : "recoverable")); + + blacklisted = acpi_blacklist[i].data; + } + + (void)early_acpi_osi_init(); +#ifdef CONFIG_DMI + dmi_check_system(acpi_rev_dmi_table); +#endif + + return blacklisted; +} +#ifdef CONFIG_DMI +#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE +static int __init dmi_enable_rev_override(const struct dmi_system_id *d) +{ + pr_notice("DMI detected: %s (force ACPI _REV to 5)\n", d->ident); + acpi_rev_override_setup(NULL); + return 0; +} +#endif + +static const struct dmi_system_id acpi_rev_dmi_table[] __initconst = { +#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE + /* + * DELL XPS 13 (2015) switches sound between HDA and I2S + * depending on the ACPI _REV callback. If userspace supports + * I2S sufficiently (or if you do not care about sound), you + * can safely disable this quirk. + */ + { + .callback = dmi_enable_rev_override, + .ident = "DELL XPS 13 (2015)", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9343"), + }, + }, + { + .callback = dmi_enable_rev_override, + .ident = "DELL Precision 5520", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Precision 5520"), + }, + }, + { + .callback = dmi_enable_rev_override, + .ident = "DELL Precision 3520", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3520"), + }, + }, + /* + * Resolves a quirk with the Dell Latitude 3350 that + * causes the ethernet adapter to not function. + */ + { + .callback = dmi_enable_rev_override, + .ident = "DELL Latitude 3350", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Latitude 3350"), + }, + }, + { + .callback = dmi_enable_rev_override, + .ident = "DELL Inspiron 7537", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7537"), + }, + }, +#endif + {} +}; + +#endif /* CONFIG_DMI */ |