src/soc/amd/common/acpi/pci_int.asl

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3         /* PIC Possible Resource Values */
   4         Name(IRQP, ResourceTemplate() {
   5                 Interrupt(ResourceConsumer, Level, ActiveLow, Shared, , , PIC){
   6                         1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15
   7                 }
   8         })
   9
  10         /* IO-APIC Possible Resource Values */
  11         Name(IRQI, ResourceTemplate() {
  12                 Interrupt (ResourceConsumer, Level, ActiveLow, Shared, , , APIC) {
  13                         16, 17, 18, 19, 20, 21, 22, 23
  14                 }
  15         })
  16
  17 #define PCI_LINK(DEV_NAME, PIC_REG, APIC_REG, UID) \
  18         Device(DEV_NAME) { \
  19                 Name(_HID, EISAID("PNP0C0F")) \
  20                 Name(_UID, UID) \
  21 \
  22                 Method(_STA, 0) { \
  23                         If (PICM) { \
  24                                 local0=APIC_REG \
  25                         } Else { \
  26                                 local0=PIC_REG \
  27                         } \
  28 \
  29                         If (local0 != 0x1f) { \
  30                                 printf("PCI: \\_SB.%s._STA: %o, Enabled", #DEV_NAME, local0) \
  31                                 /* Present, Enabled, Functional */ \
  32                                 Return(0x0b) \
  33                         } else { \
  34                                 printf("PCI: \\_SB.%s._STA: %o, Disabled", #DEV_NAME, local0) \
  35                                 /* Present, Functional */ \
  36                                 Return(0x09) \
  37                         } \
  38                 } \
  39 \
  40                 Method(_DIS ,0) { \
  41                         If(PICM) { \
  42                                 printf("PCI: \\_SB.%s._DIS APIC", #DEV_NAME) \
  43                                 APIC_REG=0x1f \
  44                         } Else { \
  45                                 printf("PCI: \\_SB.%s._DIS PIC", #DEV_NAME) \
  46                                 PIC_REG=0x1f \
  47                         } \
  48                 } \
  49 \
  50                 Method(_PRS ,0) { \
  51                         If(PICM) { \
  52                                 printf("PCI: \\_SB.%s._PRS => APIC", #DEV_NAME) \
  53                                 Return(IRQI) \
  54                         } Else { \
  55                                 printf("PCI: \\_SB.%s._PRS => PIC", #DEV_NAME) \
  56                                 Return(IRQP) \
  57                         } \
  58                 } \
  59 \
  60                 Method(_CRS ,0) { \
  61                         local0=ResourceTemplate(){ \
  62                                 Interrupt ( \
  63                                         ResourceConsumer, \
  64                                         Level, \
  65                                         ActiveLow, \
  66                                         Shared, , , NUMB) \
  67                                 { 0 } \
  68                         } \
  69                         CreateDWordField(local0, NUMB._INT, IRQN) \
  70                         If(PICM) { \
  71                                 printf("PCI: \\_SB.%s._CRS APIC: %o", #DEV_NAME, APIC_REG) \
  72                                 IRQN=APIC_REG \
  73                         } Else { \
  74                                 printf("PCI: \\_SB.%s._CRS PIC: %o", #DEV_NAME, PIC_REG) \
  75                                 IRQN=PIC_REG \
  76                         } \
  77                         If (IRQN == 0x1f) { \
  78                                 Return(ResourceTemplate(){}) \
  79                         } Else { \
  80                                 Return(local0) \
  81                         } \
  82                 } \
  83 \
  84                 Method(_SRS, 1) { \
  85                         CreateWordField(ARG0, 0x5, IRQN) \
  86 \
  87                         If(PICM) { \
  88                                 printf("PCI: \\_SB.%s._SRS APIC: %o", #DEV_NAME, IRQN) \
  89                                 APIC_REG=IRQN \
  90                         } Else { \
  91                                 printf("PCI: \\_SB.%s._SRS PIC: %o", #DEV_NAME, IRQN) \
  92                                 PIC_REG=IRQN \
  93                         } \
  94                 } \
  95         }
  96
  97 PCI_LINK(INTA, PIRA, IORA, 0)
  98 PCI_LINK(INTB, PIRB, IORB, 1)
  99 PCI_LINK(INTC, PIRC, IORC, 2)
 100 PCI_LINK(INTD, PIRD, IORD, 3)
 101 PCI_LINK(INTE, PIRE, IORE, 4)
 102 PCI_LINK(INTF, PIRF, IORF, 5)
 103 PCI_LINK(INTG, PIRG, IORG, 6)
 104 PCI_LINK(INTH, PIRH, IORH, 7)