diff options
Diffstat (limited to 'DynamicTablesPkg/Library/Acpi')
-rw-r--r-- | DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.c b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.c index 85098752c6..c54ae6f551 100644 --- a/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.c +++ b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.c @@ -288,12 +288,6 @@ GeneratePciDeviceInfo ( Cf. ACPI 6.4 specification, s6.2.13 "_PRT (PCI Routing Table)"
- The first model (defining a _CRS object) is used. This is necessary because
- PCI legacy interrupts are active low and GICv2 SPI interrupts are active
- high.
- Even though PCI interrupts cannot be re-routed, only the first model allows
- to specify the activation state (low/high).
-
@param [in] Generator The SSDT Pci generator.
@param [in] CfgMgrProtocol Pointer to the Configuration Manager
Protocol interface.
@@ -397,6 +391,8 @@ GeneratePrt ( High word-Device #, Low word-Function #. (for example, device 3,
function 2 is 0x00030002). To refer to all the functions on a device #,
use a function number of FFFF).
+
+ Use the second model for _PRT object and describe a hardwired interrupt.
*/
Status = AmlAddPrtEntry (
(IrqMapInfo->PciDevice << 16) | 0xFFFF,
|