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authorVladimir Serbinenko <phcoder@gmail.com>2014-10-19 10:13:14 +0200
committerVladimir Serbinenko <phcoder@gmail.com>2014-11-23 17:30:13 +0100
commit33b535f15ded011c92cd1757408a3453a55b44bd (patch)
tree67ae10671273ccb152d5462290afcd4aba2579d9 /src/mainboard/google/link/acpi
parent5903a78e1e5aa28dc18e626df416b4076398763d (diff)
downloadcoreboot-33b535f15ded011c92cd1757408a3453a55b44bd.tar.xz
sandy/ivy/nehalem: Remerge interrupt handling
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 <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/7130 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Diffstat (limited to 'src/mainboard/google/link/acpi')
-rw-r--r--src/mainboard/google/link/acpi/sandybridge_pci_irqs.asl68
1 files changed, 0 insertions, 68 deletions
diff --git a/src/mainboard/google/link/acpi/sandybridge_pci_irqs.asl b/src/mainboard/google/link/acpi/sandybridge_pci_irqs.asl
deleted file mode 100644
index a4267bb253..0000000000
--- a/src/mainboard/google/link/acpi/sandybridge_pci_irqs.asl
+++ /dev/null
@@ -1,68 +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 },
- // High Definition Audio 0:1b.0
- Package() { 0x001bffff, 0, 0, 16 },
- // PCIe Root Ports 0:1c.x
- Package() { 0x001cffff, 0, 0, 19 },
- Package() { 0x001cffff, 1, 0, 20 },
- Package() { 0x001cffff, 2, 0, 17 },
- Package() { 0x001cffff, 3, 0, 18 },
- // EHCI #1 0:1d.0
- Package() { 0x001dffff, 0, 0, 19 },
- // EHCI #2 0:1a.0
- Package() { 0x001affff, 0, 0, 21 },
- // LPC devices 0:1f.0
- Package() { 0x001fffff, 0, 0, 17 },
- Package() { 0x001fffff, 1, 0, 23 },
- Package() { 0x001fffff, 2, 0, 16 },
- Package() { 0x001fffff, 3, 0, 18 },
- })
- } 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.LNKD, 0 },
- Package() { 0x001cffff, 1, \_SB.PCI0.LPCB.LNKE, 0 },
- Package() { 0x001cffff, 2, \_SB.PCI0.LPCB.LNKB, 0 },
- Package() { 0x001cffff, 3, \_SB.PCI0.LPCB.LNKC, 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 },
- Package() { 0x001fffff, 3, \_SB.PCI0.LPCB.LNKC, 0 },
- })
- }
-}