#include <Library/AcpiLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Protocol/AcpiTable.h>
#include <AcpiTableGenerator.h>
#include <ConfigurationManagerObject.h>
#include <ConfigurationManagerHelper.h>
#include <Library/AcpiHelperLib.h>
#include <Library/TableHelperLib.h>
#include <Library/AmlLib/AmlLib.h>
#include <Library/SsdtPcieSupportLib.h>
#include <Protocol/ConfigurationManagerProtocol.h>
#include "SsdtPcieSupportLibPrivate.h"

Functions
EFI_STATUS EFIAPI	GeneratePciSlots (IN CONST CM_ARCH_COMMON_PCI_CONFIG_SPACE_INFO PciInfo, IN CONST MAPPING_TABLE MappingTable, IN UINT32 Uid, IN OUT AML_OBJECT_NODE_HANDLE PciNode)

EFI_STATUS EFIAPI	AddOscMethod (IN CONST CM_ARCH_COMMON_PCI_CONFIG_SPACE_INFO *PciInfo, IN OUT AML_OBJECT_NODE_HANDLE PciNode)

Detailed Description

SSDT PCIe Support Library.

SPDX-License-Identifier: BSD-2-Clause-Patent

Reference(s):

PCI Firmware Specification - Revision 3.0
ACPI 6.4 specification:
- s6.2.13 "_PRT (PCI Routing Table)"
- s6.1.1 "_ADR (Address)"
linux kernel code
Arm Base Boot Requirements v1.0
Arm Base System Architecture v1.0

Definition in file SsdtPcieSupportLib.c.

Function Documentation

◆ AddOscMethod()

EFI_STATUS EFIAPI AddOscMethod	(	IN CONST CM_ARCH_COMMON_PCI_CONFIG_SPACE_INFO *	PciInfo,
		IN OUT AML_OBJECT_NODE_HANDLE	PciNode
	)

Add an _OSC template method to the PciNode.

The _OSC method is provided as an AML blob. The blob is parsed and attached at the end of the PciNode list of variable elements.

Parameters

[in]	PciInfo	Pci device information.
[in,out]	PciNode	Pci node to amend.

Return values

EFI_SUCCESS	The function completed successfully.
EFI_INVALID_PARAMETER	Invalid parameter.
EFI_OUT_OF_RESOURCES	Could not allocate memory.

Definition at line 134 of file SsdtPcieSupportLib.c.

◆ GeneratePciSlots()

EFI_STATUS EFIAPI GeneratePciSlots	(	IN CONST CM_ARCH_COMMON_PCI_CONFIG_SPACE_INFO *	PciInfo,
		IN CONST MAPPING_TABLE *	MappingTable,
		IN UINT32	Uid,
		IN OUT AML_OBJECT_NODE_HANDLE	PciNode
	)

Generate Pci slots devices.

PCI Firmware Specification - Revision 3.3, s4.8 "Generic ACPI PCI Slot Description" requests to describe the PCI slot used. It should be possible to enumerate them, but this is additional information.