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/** @file
Copyright (C) 2008-2025 Advanced Micro Devices, Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <PiDxe.h>
#include <Library/PciHostBridgeLib.h>
#include <Library/DebugLib.h>
#include <Library/DevicePathLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Protocol/PciRootBridgeIo.h>
#include <Protocol/PciHostBridgeResourceAllocation.h>
/**
Sort all root bridges in bus ascending order and set DevicePath UIDs
continuous and ascending from zero
@param[in,out] RootBridgeList Array of root bridges.
@param[in] Count Count of root bridges in RootBridgeList
@return All the root bridge instances in an array are sorted in bus order.
DevicePath UID updated to continuous and ascending numbers starting
with 0.
**/
VOID
EFIAPI
PciHostBridgeSortRootBridges (
IN PCI_ROOT_BRIDGE *RootBridgeList,
IN UINTN Count
)
{
}
/**
Return all the root bridge instances in an array.
@param Count Return the count of root bridge instances.
@return All the root bridge instances in an array.
The array should be passed into PciHostBridgeFreeRootBridges()
when it's not used.
**/
PCI_ROOT_BRIDGE *
EFIAPI
PciHostBridgeGetRootBridges (
UINTN *Count
)
{
return (PCI_ROOT_BRIDGE *)NULL;
}
/**
Free the root bridge instances array returned from PciHostBridgeGetRootBridges().
@param Bridges The root bridge instances array.
@param Count The count of the array.
**/
VOID
EFIAPI
PciHostBridgeFreeRootBridges (
PCI_ROOT_BRIDGE *Bridges,
UINTN Count
)
{
}
/**
Inform the platform that the resource conflict happens.
@param HostBridgeHandle Handle of the Host Bridge.
@param Configuration Pointer to PCI I/O and PCI memory resource
descriptors. The Configuration contains the resources
for all the root bridges. The resource for each root
bridge is terminated with END descriptor and an
additional END is appended indicating the end of the
entire resources. The resource descriptor field
values follow the description in
EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
.SubmitResources().
**/
VOID
EFIAPI
PciHostBridgeResourceConflict (
EFI_HANDLE HostBridgeHandle,
VOID *Configuration
)
{
}
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