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DynamicTablesPkg: AcpiSsdtPcieLibArm: Support UID > 0xF 

Add support for PCIe devices with UID > 0xF.
This is done by using the next value in the name so
PCI5, PC26, etc

Signed-off-by: Jeff Brasen <jbrasen@nvidia.com>
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
This commit is contained in:
Jeff Brasen 2022-07-08 14:59:02 -06:00 committed by mergify[bot]
parent 6cda306da1
commit 9ac155bf0b
2 changed files with 5 additions and 2 deletions
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5
DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.c
View File

@ -824,7 +824,10 @@ GeneratePciDevice (
// Write the name of the PCI device.
CopyMem (AslName, "PCIx", AML_NAME_SEG_SIZE + 1);
AslName[AML_NAME_SEG_SIZE - 1] = AsciiFromHex (Uid);
AslName[AML_NAME_SEG_SIZE - 1] = AsciiFromHex (Uid & 0xF);
if (Uid > 0xF) {
AslName[AML_NAME_SEG_SIZE - 2] = AsciiFromHex ((Uid >> 4) & 0xF);
}
// ASL: Device (PCIx) {}
Status = AmlCodeGenDevice (AslName, ScopeNode, &PciNode);

2
DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.h
View File

@ -31,7 +31,7 @@
Corresponding changes would be needed to support the Name and
UID fields describing the Pci root complexes.
*/
#define MAX_PCI_ROOT_COMPLEXES_SUPPORTED 16
#define MAX_PCI_ROOT_COMPLEXES_SUPPORTED 256
// _SB scope of the AML namespace.
#define SB_SCOPE "\\_SB_"