git.sur5r.net Git - u-boot/blob - arch/x86/include/asm/acpi/irqroute.asl

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (C) 2007-2009 coresystems GmbH
   4  * Copyright (C) 2013 Google Inc.
   5  * Copyright (C) 2016 Bin Meng <bmeng.cn@gmail.com>
   6  *
   7  * Modified from coreboot src/soc/intel/baytrail/acpi/irqroute.asl
   8  */
   9
  10 Name(\PICM, 0)
  11
  12 /*
  13  * The _PIC method is called by the OS to choose between interrupt
  14  * routing via the i8259 interrupt controller or the APIC.
  15  *
  16  * _PIC is called with a parameter of 0 for i8259 configuration and
  17  * with a parameter of 1 for Local APIC/IOAPIC configuration.
  18  */
  19 Method(\_PIC, 1)
  20 {
  21         /* Remember the OS' IRQ routing choice */
  22         Store(Arg0, PICM)
  23 }
  24
  25 /* PCI interrupt routing */
  26 Method(_PRT) {
  27         If (PICM) {
  28                 Return (Package() {
  29                         #undef PIC_MODE
  30                         #include "irq_helper.h"
  31                         PCI_DEV_PIRQ_ROUTES
  32                 })
  33         } Else {
  34                 Return (Package() {
  35                         #define PIC_MODE
  36                         #include "irq_helper.h"
  37                         PCI_DEV_PIRQ_ROUTES
  38                 })
  39         }
  40
  41 }
  42
  43 /* PCIe downstream ports interrupt routing */
  44 PCIE_BRIDGE_IRQ_ROUTES
  45 #undef PIC_MODE
  46 #include "irq_helper.h"
  47 PCIE_BRIDGE_IRQ_ROUTES