0a4079ad86
Expose the UID value to GeneratePciSlots(). This is needed for some cases for example: https://docs.microsoft.com/en-us/windows-hardware/drivers/pci/dsd-for-pcie-root-ports#identifying-externally-exposed-pcie-root-ports Name (_DSD, Package () { ToUUID("EFCC06CC-73AC-4BC3-BFF0-76143807C389"), Package () { Package (2) {"ExternalFacingPort", 1}, Package (2) {"UID", 0}, } }) Signed-off-by: Jeff Brasen <jbrasen@nvidia.com> Reviewed-by: Pierre Gondois <pierre.gondois@arm.com> Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/** @file
|
|
Ssdt PCIe Support Library
|
|
|
|
Copyright (c) 2021 - 2022, Arm Limited. All rights reserved.<BR>
|
|
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
**/
|
|
|
|
#ifndef SSDT_PCIE_SUPPORT_LIB_H_
|
|
#define SSDT_PCIE_SUPPORT_LIB_H_
|
|
|
|
#pragma pack(1)
|
|
|
|
/** Structure used to map integer to an index.
|
|
*/
|
|
typedef struct MappingTable {
|
|
/// Mapping table.
|
|
/// Contains the Index <-> integer mapping
|
|
UINT32 *Table;
|
|
|
|
/// Last used index of the Table.
|
|
/// Bound by MaxIndex.
|
|
UINT32 LastIndex;
|
|
|
|
/// Number of entries in the Table.
|
|
UINT32 MaxIndex;
|
|
} MAPPING_TABLE;
|
|
|
|
#pragma pack()
|
|
|
|
/** 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.
|
|
|
|
@param [in] PciInfo Pci device information.
|
|
@param [in, out] PciNode Pci node to amend.
|
|
|
|
@retval EFI_SUCCESS The function completed successfully.
|
|
@retval EFI_INVALID_PARAMETER Invalid parameter.
|
|
@retval EFI_OUT_OF_RESOURCES Could not allocate memory.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AddOscMethod (
|
|
IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO *PciInfo,
|
|
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.
|
|
|
|
@param [in] PciInfo Pci device information.
|
|
@param [in] MappingTable The mapping table structure.
|
|
@param [in] Uid Unique Id of the Pci device.
|
|
@param [in, out] PciNode Pci node to amend.
|
|
|
|
@retval EFI_SUCCESS Success.
|
|
@retval EFI_INVALID_PARAMETER Invalid parameter.
|
|
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
GeneratePciSlots (
|
|
IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO *PciInfo,
|
|
IN CONST MAPPING_TABLE *MappingTable,
|
|
IN UINT32 Uid,
|
|
IN OUT AML_OBJECT_NODE_HANDLE PciNode
|
|
);
|
|
|
|
#endif // SSDT_PCIE_SUPPORT_LIB_H_
|