From a952b3f794cd5b3ad0354a5375b3641babaaaa4e Mon Sep 17 00:00:00 2001 From: Matt DeVillier Date: Sat, 13 Nov 2021 15:26:40 -0600 Subject: [PATCH] mb/google/slippy/peppy: use shared touchpad interrupts Windows (10/11) freaks out and generates an interrupt storm if two ACPI devices are enabled and share an interrupt, even when only one device is actually present. To mitigate this, mark Peppy's interrupts as Shared rather than the default of Exclusive. Test: build/boot Windows 10 on Peppy, observe normal CPU usage in Task Manager for System Interrupts task when touchpad in use. Change-Id: Ida78ddec3105cef6581cdde78da2e2c97d983a0a Signed-off-by: Matt DeVillier Reviewed-on: https://review.coreboot.org/c/coreboot/+/59330 Tested-by: build bot (Jenkins) Reviewed-by: Tim Wawrzynczak --- .../slippy/variants/peppy/include/variant/acpi/mainboard.asl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/mainboard.asl b/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/mainboard.asl index babf9a0a37..e79309059b 100644 --- a/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/mainboard.asl +++ b/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/mainboard.asl @@ -18,7 +18,7 @@ Scope (\_SB.PCI0.I2C0) AddressingMode7Bit, // AddressingMode "\\_SB.PCI0.I2C0" // ResourceSource ) - Interrupt (ResourceConsumer, Level, ActiveLow) + Interrupt (ResourceConsumer, Level, ActiveLow, Shared) { BOARD_TRACKPAD_IRQ } @@ -60,7 +60,7 @@ Scope (\_SB.PCI0.I2C0) AddressingMode7Bit, // AddressingMode "\\_SB.PCI0.I2C0" // ResourceSource ) - Interrupt (ResourceConsumer, Edge, ActiveLow) + Interrupt (ResourceConsumer, Edge, ActiveLow, Shared) { BOARD_TRACKPAD_IRQ }