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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2024-04-04 21:23:41 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2024-04-08 16:39:24 +0200
commit3d26b94fa11e5e7aa46aef5ee7748d5015900acd (patch)
treeb81100e9721d018071b2764c56855d18665f5012 /drivers/acpi/x86
parent49db108391e231ed11fec937b00a2a8c46522a11 (diff)
downloadlwn-3d26b94fa11e5e7aa46aef5ee7748d5015900acd.tar.gz
lwn-3d26b94fa11e5e7aa46aef5ee7748d5015900acd.zip
ACPI: x86: Move blacklist to x86 folder
blacklist is built solely for x86, move it to the respective folder. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/x86')
-rw-r--r--drivers/acpi/x86/Makefile2
-rw-r--r--drivers/acpi/x86/blacklist.c140
2 files changed, 142 insertions, 0 deletions
diff --git a/drivers/acpi/x86/Makefile b/drivers/acpi/x86/Makefile
index b97b1bcf8404..1f3c5fa84f9e 100644
--- a/drivers/acpi/x86/Makefile
+++ b/drivers/acpi/x86/Makefile
@@ -3,3 +3,5 @@ acpi-x86-y += apple.o
acpi-x86-y += cmos_rtc.o
acpi-x86-y += s2idle.o
acpi-x86-y += utils.o
+
+obj-$(CONFIG_X86) += blacklist.o
diff --git a/drivers/acpi/x86/blacklist.c b/drivers/acpi/x86/blacklist.c
new file mode 100644
index 000000000000..55214d0a12b1
--- /dev/null
+++ b/drivers/acpi/x86/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 */