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

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/** @file
PCI resouces support functions declaration for PCI Bus module.
Copyright (c) 2006 - 2009, 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_
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 Returned start address including VGA range.
@param Length The length of VGA range.
**/
VOID
SkipVGAAperture (
OUT UINT64 *Start,
IN UINT64 Length
);
/**
This function is used to skip ISA aliasing aperture.
@param Start Returned start address including ISA aliasing aperture.
@param Length The length of ISA aliasing aperture.
**/
VOID
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.
**/
VOID
InsertResourceNode (
IN OUT PCI_RESOURCE_NODE *Bridge,
IN PCI_RESOURCE_NODE *ResNode
);
/**
This routine is used to merge two different resource trees in need of
resoure degradation.
For example, if an 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.
If Dst is NULL or Res is NULL, ASSERT ().
@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.
**/
VOID
MergeResourceTree (
IN PCI_RESOURCE_NODE *Dst,
IN PCI_RESOURCE_NODE *Res,
IN BOOLEAN TypeMerge
);
/**
This function is used to calculate the IO16 aperture
for a bridge.
@param Bridge PCI resource node for bridge.
**/
VOID
CalculateApertureIo16 (
IN PCI_RESOURCE_NODE *Bridge
);
/**
This function is used to calculate the resource aperture
for a given bridge device.
@param Bridge PCI resouce node for given bridge device.
**/
VOID
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 Prefetchable Memory.
@param Mem64Node Resource info node for 64-bit memory.
@param PMem64Node Resource info node for 64-bit Prefetchable Memory.
**/
VOID
GetResourceFromDevice (
IN PCI_IO_DEVICE *PciDev,
IN OUT PCI_RESOURCE_NODE *IoNode,
IN OUT PCI_RESOURCE_NODE *Mem32Node,
IN OUT PCI_RESOURCE_NODE *PMem32Node,
IN OUT PCI_RESOURCE_NODE *Mem64Node,
IN OUT 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.
@return PCI resource node created for given PCI device.
NULL means PCI resource node is not created.
**/
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 function 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 Prefetchable Memory.
@param Mem64Node Resource info node for 64-bit memory.
@param PMem64Node Resource info node for 64-bit Prefetchable Memory.
**/
VOID
CreateResourceMap (
IN PCI_IO_DEVICE *Bridge,
IN OUT PCI_RESOURCE_NODE *IoNode,
IN OUT PCI_RESOURCE_NODE *Mem32Node,
IN OUT PCI_RESOURCE_NODE *PMem32Node,
IN OUT PCI_RESOURCE_NODE *Mem64Node,
IN OUT 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 Prefetchable Memory.
@param Mem64Node Resource info node for 64-bit memory.
@param PMem64Node Resource info node for 64-bit Prefetchable Memory.
**/
VOID
ResourcePaddingPolicy (
IN PCI_IO_DEVICE *PciDev,
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 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 Prefetchable Memory.
@param Mem64Node Resource info node for 64-bit memory.
@param PMem64Node Resource info node for 64-bit Prefetchable Memory.
**/
VOID
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 TRUE The bridge device support decode resource.
@return FALSE The bridge device don't 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 under specified bridge.
@param Base Base address of resource to be progammed.
@param Bridge PCI resource node for the bridge device.
@retval EFI_SUCCESS Successfully to program all resouces
on given PCI bridge device.
@retval EFI_OUT_OF_RESOURCES Base is all one.
**/
EFI_STATUS
ProgramResource (
IN UINT64 Base,
IN PCI_RESOURCE_NODE *Bridge
);
/**
Program Bar register for PCI device.
@param Base Base address for PCI device resource to be progammed.
@param Node Point to resoure node structure.
**/
VOID
ProgramBar (
IN UINT64 Base,
IN PCI_RESOURCE_NODE *Node
);
/**
Program PCI-PCI bridge apperture.
@param Base Base address for resource.
@param Node Point to resoure node structure.
**/
VOID
ProgramPpbApperture (
IN UINT64 Base,
IN PCI_RESOURCE_NODE *Node
);
/**
Program parent bridge for Option Rom.
@param PciDevice Pci deivce instance.
@param OptionRomBase Base address for Optiona Rom.
@param Enable Enable or disable PCI memory.
**/
VOID
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.
@retval TRUE There is resource on the given bridge.
@retval FALSE There isn't resource on the given bridge.
**/
BOOLEAN
ResourceRequestExisted (
IN PCI_RESOURCE_NODE *Bridge
);
/**
Initialize resource pool structure.
@param ResourcePool Point to resource pool structure. This pool
is reset to all zero when returned.
@param ResourceType Type of resource.
**/
VOID
InitializeResourcePool (
IN OUT PCI_RESOURCE_NODE *ResourcePool,
IN 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 Prefetchable memory.
@param Mem64Pool Link list header for 64-bit memory.
@param PMem64Pool Link list header for 64-bit Prefetchable memory.
**/
VOID
GetResourceMap (
IN PCI_IO_DEVICE *PciDev,
IN PCI_RESOURCE_NODE **IoBridge,
IN PCI_RESOURCE_NODE **Mem32Bridge,
IN PCI_RESOURCE_NODE **PMem32Bridge,
IN PCI_RESOURCE_NODE **Mem64Bridge,
IN PCI_RESOURCE_NODE **PMem64Bridge,
IN PCI_RESOURCE_NODE *IoPool,
IN PCI_RESOURCE_NODE *Mem32Pool,
IN PCI_RESOURCE_NODE *PMem32Pool,
IN PCI_RESOURCE_NODE *Mem64Pool,
IN PCI_RESOURCE_NODE *PMem64Pool
);
/**
Destory given resource tree.
@param Bridge PCI resource root node of resource tree.
**/
VOID
DestroyResourceTree (
IN PCI_RESOURCE_NODE *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 Prefetchable Memory.
@param Mem64Node Resource info node for 64-bit memory.
@param PMem64Node Resource info node for 64-bit Prefetchable Memory.
**/
VOID
ResourcePaddingForCardBusBridge (
IN PCI_IO_DEVICE *PciDev,
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
);
/**
Program PCI Card device register for given resource node.
@param Base Base address of PCI Card device to be programmed.
@param Node Given resource node.
**/
VOID
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 Prefetchable Memory.
@param Mem64Node Resource info node for 64-bit memory.
@param PMem64Node Resource info node for 64-bit Prefetchable Memory.
**/
VOID
ApplyResourcePadding (
IN PCI_IO_DEVICE *PciDev,
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
);
/**
Get padding resource for PCI-PCI bridge.
@param PciIoDevice PCI-PCI bridge device instance.
@note Feature flag PcdPciBusHotplugDeviceSupport determines
whether need to pad resource for them.
**/
VOID
GetResourcePaddingPpb (
IN PCI_IO_DEVICE *PciIoDevice
);
#endif