From 33b535f15ded011c92cd1757408a3453a55b44bd Mon Sep 17 00:00:00 2001 From: Vladimir Serbinenko Date: Sun, 19 Oct 2014 10:13:14 +0200 Subject: sandy/ivy/nehalem: Remerge interrupt handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On those chipsets the pins are just a legacy concept. Real interrupts are messages on corresponding busses or some internal logic of chipset. Hence interrupt routing isn't anymore board-specific (dependent on layout) but depends only on configuration. Rather than attempting to sync real config, ACPI and legacy descriptors, just use the same interrupt routing per chipset covering all possible devices. The only part which remains board-specific are LPC and PCI interrupts. Interrupt balancing may suffer from such merge but: a) Doesn't seem to be the case of this map on current systems b) Almost all OS use MSI nowadays bypassing this stuff completely c) If we want a good balancing we need to take into account that e.g. wlan card may be placed in a different slot and so would require complicated balancing on runtime. It's difficult to maintain with almost no benefit. Change-Id: I9f63d1d338c5587ebac7a52093e5b924f6e5ca2d Signed-off-by: Vladimir Serbinenko Reviewed-on: http://review.coreboot.org/7130 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan Reviewed-by: Kyösti Mälkki --- .../lenovo/x220/acpi/sandybridge_pci_irqs.asl | 64 ---------------------- 1 file changed, 64 deletions(-) delete mode 100644 src/mainboard/lenovo/x220/acpi/sandybridge_pci_irqs.asl (limited to 'src/mainboard/lenovo/x220/acpi') diff --git a/src/mainboard/lenovo/x220/acpi/sandybridge_pci_irqs.asl b/src/mainboard/lenovo/x220/acpi/sandybridge_pci_irqs.asl deleted file mode 100644 index 6c1c6952b8..0000000000 --- a/src/mainboard/lenovo/x220/acpi/sandybridge_pci_irqs.asl +++ /dev/null @@ -1,64 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2007-2009 coresystems GmbH - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/* This is board specific information: IRQ routing for Sandybridge */ - -// PCI Interrupt Routing -Method(_PRT) -{ - If (PICM) { - Return (Package() { - // Onboard graphics (IGD) 0:2.0 - Package() { 0x0002ffff, 0, 0, 16 },// GFX INTA -> PIRQA (MSI) - // High Definition Audio 0:1b.0 - Package() { 0x001bffff, 0, 0, 16 },// D27IP_ZIP HDA INTA -> PIRQA (MSI) - // PCIe Root Ports 0:1c.x - Package() { 0x001cffff, 0, 0, 17 },// D28IP_P1IP WLAN INTA -> PIRQB - Package() { 0x001cffff, 1, 0, 21 },// D28IP_P2IP ETH0 INTB -> PIRQF - Package() { 0x001cffff, 2, 0, 19 },// D28IP_P3IP SDCARD INTC -> PIRQD - // EHCI #1 0:1d.0 - Package() { 0x001dffff, 0, 0, 19 },// D29IP_E1P EHCI1 INTA -> PIRQD - // EHCI #2 0:1a.0 - Package() { 0x001affff, 0, 0, 21 },// D26IP_E2P EHCI2 INTA -> PIRQF - // LPC devices 0:1f.0 - Package() { 0x001fffff, 0, 0, 17 }, // D31IP_SIP SATA INTA -> PIRQB (MSI) - Package() { 0x001fffff, 1, 0, 23 }, // D31IP_SMIP SMBUS INTB -> PIRQH - Package() { 0x001fffff, 2, 0, 16 }, // D31IP_TTIP THRT INTC -> PIRQA - }) - } Else { - Return (Package() { - // Onboard graphics (IGD) 0:2.0 - Package() { 0x0002ffff, 0, \_SB.PCI0.LPCB.LNKA, 0 }, - // High Definition Audio 0:1b.0 - Package() { 0x001bffff, 0, \_SB.PCI0.LPCB.LNKA, 0 }, - // PCIe Root Ports 0:1c.x - Package() { 0x001cffff, 0, \_SB.PCI0.LPCB.LNKB, 0 }, - Package() { 0x001cffff, 1, \_SB.PCI0.LPCB.LNKF, 0 }, - Package() { 0x001cffff, 2, \_SB.PCI0.LPCB.LNKD, 0 }, - // EHCI #1 0:1d.0 - Package() { 0x001dffff, 0, \_SB.PCI0.LPCB.LNKD, 0 }, - // EHCI #2 0:1a.0 - Package() { 0x001affff, 0, \_SB.PCI0.LPCB.LNKF, 0 }, - // LPC device 0:1f.0 - Package() { 0x001fffff, 0, \_SB.PCI0.LPCB.LNKB, 0 }, - Package() { 0x001fffff, 1, \_SB.PCI0.LPCB.LNKH, 0 }, - Package() { 0x001fffff, 2, \_SB.PCI0.LPCB.LNKA, 0 }, - }) - } -} -- cgit v1.2.3