Merge tag 'acpi-6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "Rework the handling of interrupt overrides on AMD Zen-based machines
  to avoid recently introduced regressions (Hans de Goede).

  Note that this is intended as a short-term mitigation for 6.5 and the
  long-term approach will be to attempt to use the configuration left by
  the BIOS, but it requires more investigation"

* tag 'acpi-6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: resource: Add IRQ override quirk for PCSpecialist Elimina Pro 16 M
  ACPI: resource: Honor MADT INT_SRC_OVR settings for IRQ1 on AMD Zen
  ACPI: resource: Always use MADT override IRQ settings for all legacy non i8042 IRQs
  ACPI: resource: revert "Remove "Zen" specific match and quirks"

3 files changed, 70 insertions, 0 deletions

diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 8eb74cf386dbe5..2888c0ee4df045 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -15,6 +15,7 @@
 #include <asm/mpspec.h>
 #include <asm/x86_init.h>
 #include <asm/cpufeature.h>
+#include <asm/irq_vectors.h>
 
 #ifdef CONFIG_ACPI_APEI
 # include <asm/pgtable_types.h>
@@ -31,6 +32,7 @@ extern int acpi_skip_timer_override;
 extern int acpi_use_timer_override;
 extern int acpi_fix_pin2_polarity;
 extern int acpi_disable_cmcff;
+extern bool acpi_int_src_ovr[NR_IRQS_LEGACY];
 
 extern u8 acpi_sci_flags;
 extern u32 acpi_sci_override_gsi;
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 21b542a6866cf7..53369c57751ec8 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -52,6 +52,7 @@ int acpi_lapic;
 int acpi_ioapic;
 int acpi_strict;
 int acpi_disable_cmcff;
+bool acpi_int_src_ovr[NR_IRQS_LEGACY];
 
 /* ACPI SCI override configuration */
 u8 acpi_sci_flags __initdata;
@@ -588,6 +589,9 @@ acpi_parse_int_src_ovr(union acpi_subtable_headers * header,
 
 	acpi_table_print_madt_entry(&header->common);
 
+	if (intsrc->source_irq < NR_IRQS_LEGACY)
+		acpi_int_src_ovr[intsrc->source_irq] = true;
+
 	if (intsrc->source_irq == acpi_gbl_FADT.sci_interrupt) {
 		acpi_sci_ioapic_setup(intsrc->source_irq,
 				      intsrc->inti_flags & ACPI_MADT_POLARITY_MASK,
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 1dd8d5aebf6789..a4d9f149b48d77 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -470,6 +470,45 @@ static const struct dmi_system_id asus_laptop[] = {
 	{ }
 };
 
+static const struct dmi_system_id tongfang_gm_rg[] = {
+	{
+		.ident = "TongFang GMxRGxx/XMG CORE 15 (M22)/TUXEDO Stellaris 15 Gen4 AMD",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_NAME, "GMxRGxx"),
+		},
+	},
+	{ }
+};
+
+static const struct dmi_system_id maingear_laptop[] = {
+	{
+		.ident = "MAINGEAR Vector Pro 2 15",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Micro Electronics Inc"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MG-VCP2-15A3070T"),
+		}
+	},
+	{
+		.ident = "MAINGEAR Vector Pro 2 17",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Micro Electronics Inc"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MG-VCP2-17A3070T"),
+		},
+	},
+	{ }
+};
+
+static const struct dmi_system_id pcspecialist_laptop[] = {
+	{
+		.ident = "PCSpecialist Elimina Pro 16 M",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "PCSpecialist"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Elimina Pro 16 M"),
+		},
+	},
+	{ }
+};
+
 static const struct dmi_system_id lg_laptop[] = {
 	{
 		.ident = "LG Electronics 17U70P",
@@ -493,6 +532,9 @@ struct irq_override_cmp {
 static const struct irq_override_cmp override_table[] = {
 	{ medion_laptop, 1, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW, 0, false },
 	{ asus_laptop, 1, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW, 0, false },
+	{ tongfang_gm_rg, 1, ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_LOW, 1, true },
+	{ maingear_laptop, 1, ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_LOW, 1, true },
+	{ pcspecialist_laptop, 1, ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_LOW, 1, true },
 	{ lg_laptop, 1, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW, 0, false },
 };
 
@@ -512,6 +554,28 @@ static bool acpi_dev_irq_override(u32 gsi, u8 triggering, u8 polarity,
 			return entry->override;
 	}
 
+#ifdef CONFIG_X86
+	/*
+	 * Always use the MADT override info, except for the i8042 PS/2 ctrl
+	 * IRQs (1 and 12). For these the DSDT IRQ settings should sometimes
+	 * be used otherwise PS/2 keyboards / mice will not work.
+	 */
+	if (gsi != 1 && gsi != 12)
+		return true;
+
+	/* If the override comes from an INT_SRC_OVR MADT entry, honor it. */
+	if (acpi_int_src_ovr[gsi])
+		return true;
+
+	/*
+	 * IRQ override isn't needed on modern AMD Zen systems and
+	 * this override breaks active low IRQs on AMD Ryzen 6000 and
+	 * newer systems. Skip it.
+	 */
+	if (boot_cpu_has(X86_FEATURE_ZEN))
+		return false;
+#endif
+
 	return true;
 }