audk/IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciResourceSupport.h

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/** @file
Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _EFI_PCI_RESOURCE_SUPPORT_H_
#define _EFI_PCI_RESOURCE_SUPPORT_H_
#define RESERVED_RESOURCE_SIGNATURE SIGNATURE_32 ('r', 's', 'v', 'd')
typedef struct {
UINT64 Base;
UINT64 Length;
PCI_BAR_TYPE ResType;
} PCI_RESERVED_RESOURCE_NODE;
typedef struct {
UINT32 Signature;
LIST_ENTRY Link;
PCI_RESERVED_RESOURCE_NODE Node;
} PCI_RESERVED_RESOURCE_LIST;
#define RESOURCED_LIST_FROM_NODE(a) \
CR (a, PCI_RESERVED_RESOURCE_LIST, Node, RESERVED_RESOURCE_SIGNATURE)
#define RESOURCED_LIST_FROM_LINK(a) \
CR (a, PCI_RESERVED_RESOURCE_LIST, Link, RESERVED_RESOURCE_SIGNATURE)
typedef enum {
PciResUsageTypical = 0,
PciResUsagePadding,
PciResUsageOptionRomProcessing
} PCI_RESOURCE_USAGE;
#define PCI_RESOURCE_SIGNATURE SIGNATURE_32 ('p', 'c', 'r', 'c')
typedef struct {
UINT32 Signature;
LIST_ENTRY Link;
LIST_ENTRY ChildList;
PCI_IO_DEVICE *PciDev;
UINT64 Alignment;
UINT64 Offset;
UINT8 Bar;
PCI_BAR_TYPE ResType;
UINT64 Length;
BOOLEAN Reserved;
PCI_RESOURCE_USAGE ResourceUsage;
} PCI_RESOURCE_NODE;
#define RESOURCE_NODE_FROM_LINK(a) \
CR (a, PCI_RESOURCE_NODE, Link, PCI_RESOURCE_SIGNATURE)
/**
The function is used to skip VGA range
@param Start address including VGA range
@param Length length of VGA range.
@retval EFI_SUCCESS success.
**/
EFI_STATUS
SkipVGAAperture (
OUT UINT64 *Start,
IN UINT64 Length
);
/**
This function is used to skip ISA aliasing aperture.
@param Start address including ISA aliasing aperture.
@param Length length of ISA aliasing aperture.
@retval EFI_SUCCESS success.
**/
EFI_STATUS
SkipIsaAliasAperture (
OUT UINT64 *Start,
IN UINT64 Length
);
/**
This function inserts a resource node into the resource list.
The resource list is sorted in descend order.
@param Bridge PCI resource node for bridge.
@param ResNode Resource node want to be inserted.
@retval EFI_SUCCESS Success.
**/
EFI_STATUS
InsertResourceNode (
PCI_RESOURCE_NODE *Bridge,
PCI_RESOURCE_NODE *ResNode
);
/**
Routine Description:
This routine is used to merge two different resource tree in need of
resoure degradation. For example, if a upstream PPB doesn't support,
prefetchable memory decoding, the PCI bus driver will choose to call this function
to merge prefectchable memory resource list into normal memory list.
If the TypeMerge is TRUE, Res resource type is changed to the type of destination resource
type.
@param Dst Point to destination resource tree.
@param Res Point to source resource tree.
@param TypeMerge If the TypeMerge is TRUE, Res resource type is changed to the type of
destination resource type.
@retval EFI_SUCCESS Success
**/
EFI_STATUS
MergeResourceTree (
PCI_RESOURCE_NODE *Dst,
PCI_RESOURCE_NODE *Res,
BOOLEAN TypeMerge
);
/**
This function is used to calculate the IO16 aperture
for a bridge.
@param Bridge PCI resource node for bridge.
@retval EFI_SUCCESS Success.
**/
EFI_STATUS
CalculateApertureIo16 (
IN PCI_RESOURCE_NODE *Bridge
);
/**
This function is used to calculate the resource aperture
for a given bridge device.
@param Bridge Give bridge device.
@retval EFI_SUCCESS Success.
**/
EFI_STATUS
CalculateResourceAperture (
IN PCI_RESOURCE_NODE *Bridge
);
/**
Get IO/Memory resource infor for given PCI device.
@param PciDev Pci device instance.
@param IoNode Resource info node for IO .
@param Mem32Node Resource info node for 32-bit memory.
@param PMem32Node Resource info node for 32-bit PMemory.
@param Mem64Node Resource info node for 64-bit memory.
@param PMem64Node Resource info node for 64-bit PMemory.
@retval EFI_SUCCESS Success.
**/
EFI_STATUS
GetResourceFromDevice (
PCI_IO_DEVICE *PciDev,
PCI_RESOURCE_NODE *IoNode,
PCI_RESOURCE_NODE *Mem32Node,
PCI_RESOURCE_NODE *PMem32Node,
PCI_RESOURCE_NODE *Mem64Node,
PCI_RESOURCE_NODE *PMem64Node
);
/**
This function is used to create a resource node.
@param PciDev Pci device instance.
@param Length Length of Io/Memory resource.
@param Alignment Alignment of resource.
@param Bar Bar index.
@param ResType Type of resource: IO/Memory.
@param ResUsage Resource usage.
**/
PCI_RESOURCE_NODE *
CreateResourceNode (
IN PCI_IO_DEVICE *PciDev,
IN UINT64 Length,
IN UINT64 Alignment,
IN UINT8 Bar,
IN PCI_BAR_TYPE ResType,
IN PCI_RESOURCE_USAGE ResUsage
);
/**
This routine is used to extract resource request from
device node list.
@param Bridge Pci device instance.
@param IoNode Resource info node for IO.
@param Mem32Node Resource info node for 32-bit memory.
@param PMem32Node Resource info node for 32-bit PMemory.
@param Mem64Node Resource info node for 64-bit memory.
@param PMem64Node Resource info node for 64-bit PMemory.
@retval EFI_SUCCESS Success.
**/
EFI_STATUS
CreateResourceMap (
IN PCI_IO_DEVICE *Bridge,
IN PCI_RESOURCE_NODE *IoNode,
IN PCI_RESOURCE_NODE *Mem32Node,
IN PCI_RESOURCE_NODE *PMem32Node,
IN PCI_RESOURCE_NODE *Mem64Node,
IN PCI_RESOURCE_NODE *PMem64Node
);
/**
This function is used to do the resource padding for a specific platform.
@param PciDev Pci device instance.
@param IoNode Resource info node for IO.
@param Mem32Node Resource info node for 32-bit memory.
@param PMem32Node Resource info node for 32-bit PMemory.
@param Mem64Node Resource info node for 64-bit memory.
@param PMem64Node Resource info node for 64-bit PMemory.
@retval EFI_SUCCESS Success.
**/
EFI_STATUS
ResourcePaddingPolicy (
PCI_IO_DEVICE *PciDev,
PCI_RESOURCE_NODE *IoNode,
PCI_RESOURCE_NODE *Mem32Node,
PCI_RESOURCE_NODE *PMem32Node,
PCI_RESOURCE_NODE *Mem64Node,
PCI_RESOURCE_NODE *PMem64Node
);
/**
This function is used to degrade resource if the upstream bridge
doesn't support certain resource. Degradation path is
PMEM64 -> MEM64 -> MEM32
PMEM64 -> PMEM32 -> MEM32
IO32 -> IO16
@param Bridge Pci device instance.
@param Mem32Node Resource info node for 32-bit memory.
@param PMem32Node Resource info node for 32-bit PMemory.
@param Mem64Node Resource info node for 64-bit memory.
@param PMem64Node Resource info node for 64-bit PMemory.
@retval EFI_SUCCESS Success.
**/
EFI_STATUS
DegradeResource (
IN PCI_IO_DEVICE *Bridge,
IN PCI_RESOURCE_NODE *Mem32Node,
IN PCI_RESOURCE_NODE *PMem32Node,
IN PCI_RESOURCE_NODE *Mem64Node,
IN PCI_RESOURCE_NODE *PMem64Node
);
/**
Test whether bridge device support decode resource.
@param Bridge Bridge device instance.
@param Decode Decode type according to resource type.
@return whether bridge device support decode resource.
**/
BOOLEAN
BridgeSupportResourceDecode (
IN PCI_IO_DEVICE *Bridge,
IN UINT32 Decode
);
/**
This function is used to program the resource allocated
for each resource node.
@param Base Base address of resource.
@param Bridge Bridge device instance.
@retval EFI_SUCCESS Success.
**/
EFI_STATUS
ProgramResource (
IN UINT64 Base,
IN PCI_RESOURCE_NODE *Bridge
);
/**
Program Bar register.
@param Base Base address for resource.
@param Node Point to resoure node structure.
@retval EFI_SUCCESS Success.
**/
EFI_STATUS
ProgramBar (
IN UINT64 Base,
IN PCI_RESOURCE_NODE *Node
);
/**
Program PPB apperture.
@param Base Base address for resource.
@param Node Point to resoure node structure.
@retval EFI_SUCCESS Success.
**/
EFI_STATUS
ProgramPpbApperture (
IN UINT64 Base,
IN PCI_RESOURCE_NODE *Node
);
/**
Program parent bridge for oprom.
@param PciDevice Pci deivce instance.
@param OptionRomBase Base address for oprom.
@param Enable Enable/Disable.
@retval EFI_SUCCESS Success.
**/
EFI_STATUS
ProgrameUpstreamBridgeForRom (
IN PCI_IO_DEVICE *PciDevice,
IN UINT32 OptionRomBase,
IN BOOLEAN Enable
);
/**
Test whether resource exists for a bridge.
@param Bridge Point to resource node for a bridge.
@return whether resource exists.
**/
BOOLEAN
ResourceRequestExisted (
IN PCI_RESOURCE_NODE *Bridge
);
/**
Initialize resource pool structure.
@param ResourcePool Point to resource pool structure.
@param ResourceType Type of resource.
**/
EFI_STATUS
InitializeResourcePool (
PCI_RESOURCE_NODE *ResourcePool,
PCI_BAR_TYPE ResourceType
);
/**
Get all resource information for given Pci device.
@param PciDev Pci device instance.
@param IoBridge Io resource node.
@param Mem32Bridge 32-bit memory node.
@param PMem32Bridge 32-bit Pmemory node.
@param Mem64Bridge 64-bit memory node.
@param PMem64Bridge 64-bit PMemory node.
@param IoPool Link list header for Io resource.
@param Mem32Pool Link list header for 32-bit memory.
@param PMem32Pool Link list header for 32-bit Pmemory.
@param Mem64Pool Link list header for 64-bit memory.
@param PMem64Pool Link list header for 64-bit Pmemory.
@retval EFI_SUCCESS Success.
**/
EFI_STATUS
GetResourceMap (
PCI_IO_DEVICE *PciDev,
PCI_RESOURCE_NODE **IoBridge,
PCI_RESOURCE_NODE **Mem32Bridge,
PCI_RESOURCE_NODE **PMem32Bridge,
PCI_RESOURCE_NODE **Mem64Bridge,
PCI_RESOURCE_NODE **PMem64Bridge,
PCI_RESOURCE_NODE *IoPool,
PCI_RESOURCE_NODE *Mem32Pool,
PCI_RESOURCE_NODE *PMem32Pool,
PCI_RESOURCE_NODE *Mem64Pool,
PCI_RESOURCE_NODE *PMem64Pool
);
/**
Destory given resource tree.
@param Bridge root node of resource tree.
@retval EFI_SUCCESS Success.
**/
EFI_STATUS
DestroyResourceTree (
IN PCI_RESOURCE_NODE *Bridge
);
/**
Record the reserved resource and insert to reserved list.
@param Base Base address of reserved resourse.
@param Length Length of reserved resource.
@param ResType Resource type.
@param Bridge Pci device instance.
**/
EFI_STATUS
RecordReservedResource (
IN UINT64 Base,
IN UINT64 Length,
IN PCI_BAR_TYPE ResType,
IN PCI_IO_DEVICE *Bridge
);
/**
Insert resource padding for P2C.
@param PciDev Pci device instance.
@param IoNode Resource info node for IO.
@param Mem32Node Resource info node for 32-bit memory.
@param PMem32Node Resource info node for 32-bit PMemory.
@param Mem64Node Resource info node for 64-bit memory.
@param PMem64Node Resource info node for 64-bit PMemory.
@retval EFI_SUCCESS Success.
**/
EFI_STATUS
ResourcePaddingForCardBusBridge (
PCI_IO_DEVICE *PciDev,
PCI_RESOURCE_NODE *IoNode,
PCI_RESOURCE_NODE *Mem32Node,
PCI_RESOURCE_NODE *PMem32Node,
PCI_RESOURCE_NODE *Mem64Node,
PCI_RESOURCE_NODE *PMem64Node
);
/**
Program P2C register for given resource node.
@param Base Base address of P2C device.
@param Node Given resource node.
@retval EFI_SUCCESS Success.
**/
EFI_STATUS
ProgramP2C (
IN UINT64 Base,
IN PCI_RESOURCE_NODE *Node
);
/**
Create padding resource node.
@param PciDev Pci device instance.
@param IoNode Resource info node for IO.
@param Mem32Node Resource info node for 32-bit memory.
@param PMem32Node Resource info node for 32-bit PMemory.
@param Mem64Node Resource info node for 64-bit memory.
@param PMem64Node Resource info node for 64-bit PMemory.
@retval EFI_SUCCESS Success
**/
EFI_STATUS
ApplyResourcePadding (
PCI_IO_DEVICE *PciDev,
PCI_RESOURCE_NODE *IoNode,
PCI_RESOURCE_NODE *Mem32Node,
PCI_RESOURCE_NODE *PMem32Node,
PCI_RESOURCE_NODE *Mem64Node,
PCI_RESOURCE_NODE *PMem64Node
);
/**
Get padding resource for PPB
Light PCI bus driver woundn't support hotplug root device
So no need to pad resource for them.
@param PciIoDevice Pci device instance.
**/
VOID
GetResourcePaddingPpb (
IN PCI_IO_DEVICE *PciIoDevice
);
/**
Reset and all bus number from specific bridge.
@param Bridge Parent specific bridge.
@param StartBusNumber start bus number.
**/
EFI_STATUS
ResetAllPpbBusNumber (
IN PCI_IO_DEVICE *Bridge,
IN UINT8 StartBusNumber
);
#endif