From: Hans de Goede hdegoede@redhat.com
commit c6a1fd910d1bf8a0e3db7aebb229e3c81bc305c4 upstream.
On AMD Zen acpi_dev_irq_override() by default prefers the DSDT IRQ 1 settings over the MADT settings.
This causes the keyboard to malfunction on some laptop models (see Links), all models from the Links have an INT_SRC_OVR MADT entry for IRQ 1.
Fixes: a9c4a912b7dc ("ACPI: resource: Remove "Zen" specific match and quirks") Link: https://bugzilla.kernel.org/show_bug.cgi?id=217336 Link: https://bugzilla.kernel.org/show_bug.cgi?id=217394 Link: https://bugzilla.kernel.org/show_bug.cgi?id=217406 Cc: All applicable stable@vger.kernel.org Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Vasiliy Kovalev kovalev@altlinux.org --- arch/x86/include/asm/acpi.h | 2 ++ arch/x86/kernel/acpi/boot.c | 4 ++++ drivers/acpi/resource.c | 4 ++++ 3 files changed, 10 insertions(+)
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 2252340b2133e2..b045e20872d107 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; @@ -591,6 +592,9 @@ 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 2a3b8bf58b7ac4..8e28e76158894f 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -617,6 +617,10 @@ static bool acpi_dev_irq_override(u32 gsi, u8 triggering, u8 polarity, 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