SsdtPcieSupportLib.h File Reference

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Data Structures
struct	MappingTable

Typedefs
typedef struct MappingTable	MAPPING_TABLE

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

Detailed Description

Ssdt PCIe Support Library

Copyright (c) 2021 - 2022, Arm Limited. All rights reserved.

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

Definition in file SsdtPcieSupportLib.h.

Typedef Documentation

MAPPING_TABLE

typedef struct MappingTable MAPPING_TABLE

Structure used to map integer to an index.

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.

Parameters

[in]	PciInfo	Pci device information.
[in]	MappingTable	The mapping table structure.
[in]	Uid	Unique Id of the Pci device.
[in,out]	PciNode	Pci node to amend.

Return values

EFI_SUCCESS	Success.
EFI_INVALID_PARAMETER	Invalid parameter.
EFI_OUT_OF_RESOURCES	Failed to allocate memory.

Definition at line 55 of file SsdtPcieSupportLib.c.