464 lines
12 KiB
C
464 lines
12 KiB
C
/** @file
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PCI resouces support functions declaration for PCI Bus module.
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Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _EFI_PCI_RESOURCE_SUPPORT_H_
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#define _EFI_PCI_RESOURCE_SUPPORT_H_
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typedef enum {
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PciResUsageTypical,
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PciResUsagePadding
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} PCI_RESOURCE_USAGE;
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#define PCI_RESOURCE_SIGNATURE SIGNATURE_32 ('p', 'c', 'r', 'c')
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typedef struct {
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UINT32 Signature;
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LIST_ENTRY Link;
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LIST_ENTRY ChildList;
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PCI_IO_DEVICE *PciDev;
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UINT64 Alignment;
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UINT64 Offset;
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UINT8 Bar;
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PCI_BAR_TYPE ResType;
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UINT64 Length;
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BOOLEAN Reserved;
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PCI_RESOURCE_USAGE ResourceUsage;
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BOOLEAN Virtual;
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} PCI_RESOURCE_NODE;
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#define RESOURCE_NODE_FROM_LINK(a) \
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CR (a, PCI_RESOURCE_NODE, Link, PCI_RESOURCE_SIGNATURE)
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/**
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The function is used to skip VGA range.
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@param Start Returned start address including VGA range.
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@param Length The length of VGA range.
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**/
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VOID
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SkipVGAAperture (
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OUT UINT64 *Start,
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IN UINT64 Length
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);
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/**
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This function is used to skip ISA aliasing aperture.
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@param Start Returned start address including ISA aliasing aperture.
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@param Length The length of ISA aliasing aperture.
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**/
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VOID
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SkipIsaAliasAperture (
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OUT UINT64 *Start,
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IN UINT64 Length
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);
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/**
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This function inserts a resource node into the resource list.
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The resource list is sorted in descend order.
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@param Bridge PCI resource node for bridge.
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@param ResNode Resource node want to be inserted.
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**/
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VOID
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InsertResourceNode (
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IN OUT PCI_RESOURCE_NODE *Bridge,
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IN PCI_RESOURCE_NODE *ResNode
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);
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/**
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This routine is used to merge two different resource trees in need of
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resoure degradation.
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For example, if an upstream PPB doesn't support,
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prefetchable memory decoding, the PCI bus driver will choose to call this function
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to merge prefectchable memory resource list into normal memory list.
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If the TypeMerge is TRUE, Res resource type is changed to the type of destination resource
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type.
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If Dst is NULL or Res is NULL, ASSERT ().
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@param Dst Point to destination resource tree.
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@param Res Point to source resource tree.
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@param TypeMerge If the TypeMerge is TRUE, Res resource type is changed to the type of
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destination resource type.
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**/
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VOID
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MergeResourceTree (
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IN PCI_RESOURCE_NODE *Dst,
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IN PCI_RESOURCE_NODE *Res,
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IN BOOLEAN TypeMerge
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);
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/**
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This function is used to calculate the IO16 aperture
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for a bridge.
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@param Bridge PCI resource node for bridge.
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**/
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VOID
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CalculateApertureIo16 (
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IN PCI_RESOURCE_NODE *Bridge
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);
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/**
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This function is used to calculate the resource aperture
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for a given bridge device.
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@param Bridge PCI resouce node for given bridge device.
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**/
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VOID
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CalculateResourceAperture (
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IN PCI_RESOURCE_NODE *Bridge
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);
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/**
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Get IO/Memory resource infor for given PCI device.
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@param PciDev Pci device instance.
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@param IoNode Resource info node for IO .
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@param Mem32Node Resource info node for 32-bit memory.
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@param PMem32Node Resource info node for 32-bit Prefetchable Memory.
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@param Mem64Node Resource info node for 64-bit memory.
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@param PMem64Node Resource info node for 64-bit Prefetchable Memory.
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**/
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VOID
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GetResourceFromDevice (
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IN PCI_IO_DEVICE *PciDev,
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IN OUT PCI_RESOURCE_NODE *IoNode,
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IN OUT PCI_RESOURCE_NODE *Mem32Node,
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IN OUT PCI_RESOURCE_NODE *PMem32Node,
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IN OUT PCI_RESOURCE_NODE *Mem64Node,
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IN OUT PCI_RESOURCE_NODE *PMem64Node
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);
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/**
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This function is used to create a resource node.
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@param PciDev Pci device instance.
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@param Length Length of Io/Memory resource.
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@param Alignment Alignment of resource.
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@param Bar Bar index.
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@param ResType Type of resource: IO/Memory.
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@param ResUsage Resource usage.
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@return PCI resource node created for given PCI device.
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NULL means PCI resource node is not created.
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**/
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PCI_RESOURCE_NODE *
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CreateResourceNode (
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IN PCI_IO_DEVICE *PciDev,
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IN UINT64 Length,
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IN UINT64 Alignment,
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IN UINT8 Bar,
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IN PCI_BAR_TYPE ResType,
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IN PCI_RESOURCE_USAGE ResUsage
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);
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/**
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This function is used to extract resource request from
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IOV VF device node list.
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@param PciDev Pci device instance.
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@param Length Length of Io/Memory resource.
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@param Alignment Alignment of resource.
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@param Bar Bar index.
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@param ResType Type of resource: IO/Memory.
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@param ResUsage Resource usage.
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@return PCI resource node created for given PCI device.
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NULL means PCI resource node is not created.
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**/
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PCI_RESOURCE_NODE *
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CreateVfResourceNode (
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IN PCI_IO_DEVICE *PciDev,
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IN UINT64 Length,
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IN UINT64 Alignment,
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IN UINT8 Bar,
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IN PCI_BAR_TYPE ResType,
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IN PCI_RESOURCE_USAGE ResUsage
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);
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/**
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This function is used to extract resource request from
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device node list.
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@param Bridge Pci device instance.
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@param IoNode Resource info node for IO.
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@param Mem32Node Resource info node for 32-bit memory.
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@param PMem32Node Resource info node for 32-bit Prefetchable Memory.
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@param Mem64Node Resource info node for 64-bit memory.
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@param PMem64Node Resource info node for 64-bit Prefetchable Memory.
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**/
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VOID
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CreateResourceMap (
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IN PCI_IO_DEVICE *Bridge,
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IN OUT PCI_RESOURCE_NODE *IoNode,
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IN OUT PCI_RESOURCE_NODE *Mem32Node,
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IN OUT PCI_RESOURCE_NODE *PMem32Node,
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IN OUT PCI_RESOURCE_NODE *Mem64Node,
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IN OUT PCI_RESOURCE_NODE *PMem64Node
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);
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/**
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This function is used to do the resource padding for a specific platform.
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@param PciDev Pci device instance.
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@param IoNode Resource info node for IO.
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@param Mem32Node Resource info node for 32-bit memory.
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@param PMem32Node Resource info node for 32-bit Prefetchable Memory.
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@param Mem64Node Resource info node for 64-bit memory.
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@param PMem64Node Resource info node for 64-bit Prefetchable Memory.
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**/
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VOID
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ResourcePaddingPolicy (
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IN PCI_IO_DEVICE *PciDev,
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IN PCI_RESOURCE_NODE *IoNode,
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IN PCI_RESOURCE_NODE *Mem32Node,
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IN PCI_RESOURCE_NODE *PMem32Node,
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IN PCI_RESOURCE_NODE *Mem64Node,
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IN PCI_RESOURCE_NODE *PMem64Node
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);
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/**
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This function is used to degrade resource if the upstream bridge
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doesn't support certain resource. Degradation path is
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PMEM64 -> MEM64 -> MEM32
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PMEM64 -> PMEM32 -> MEM32
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IO32 -> IO16.
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@param Bridge Pci device instance.
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@param Mem32Node Resource info node for 32-bit memory.
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@param PMem32Node Resource info node for 32-bit Prefetchable Memory.
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@param Mem64Node Resource info node for 64-bit memory.
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@param PMem64Node Resource info node for 64-bit Prefetchable Memory.
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**/
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VOID
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DegradeResource (
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IN PCI_IO_DEVICE *Bridge,
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IN PCI_RESOURCE_NODE *Mem32Node,
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IN PCI_RESOURCE_NODE *PMem32Node,
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IN PCI_RESOURCE_NODE *Mem64Node,
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IN PCI_RESOURCE_NODE *PMem64Node
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);
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/**
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Test whether bridge device support decode resource.
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@param Bridge Bridge device instance.
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@param Decode Decode type according to resource type.
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@return TRUE The bridge device support decode resource.
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@return FALSE The bridge device don't support decode resource.
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**/
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BOOLEAN
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BridgeSupportResourceDecode (
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IN PCI_IO_DEVICE *Bridge,
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IN UINT32 Decode
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);
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/**
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This function is used to program the resource allocated
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for each resource node under specified bridge.
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@param Base Base address of resource to be progammed.
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@param Bridge PCI resource node for the bridge device.
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@retval EFI_SUCCESS Successfully to program all resouces
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on given PCI bridge device.
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@retval EFI_OUT_OF_RESOURCES Base is all one.
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**/
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EFI_STATUS
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ProgramResource (
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IN UINT64 Base,
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IN PCI_RESOURCE_NODE *Bridge
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);
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/**
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Program Bar register for PCI device.
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@param Base Base address for PCI device resource to be progammed.
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@param Node Point to resoure node structure.
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**/
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VOID
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ProgramBar (
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IN UINT64 Base,
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IN PCI_RESOURCE_NODE *Node
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);
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/**
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Program IOV VF Bar register for PCI device.
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@param Base Base address for PCI device resource to be progammed.
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@param Node Point to resoure node structure.
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**/
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EFI_STATUS
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ProgramVfBar (
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IN UINT64 Base,
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IN PCI_RESOURCE_NODE *Node
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);
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/**
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Program PCI-PCI bridge apperture.
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@param Base Base address for resource.
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@param Node Point to resoure node structure.
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**/
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VOID
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ProgramPpbApperture (
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IN UINT64 Base,
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IN PCI_RESOURCE_NODE *Node
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);
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/**
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Program parent bridge for Option Rom.
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@param PciDevice Pci deivce instance.
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@param OptionRomBase Base address for Optiona Rom.
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@param Enable Enable or disable PCI memory.
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**/
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VOID
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ProgrameUpstreamBridgeForRom (
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IN PCI_IO_DEVICE *PciDevice,
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IN UINT32 OptionRomBase,
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IN BOOLEAN Enable
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);
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/**
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Test whether resource exists for a bridge.
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@param Bridge Point to resource node for a bridge.
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@retval TRUE There is resource on the given bridge.
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@retval FALSE There isn't resource on the given bridge.
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**/
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BOOLEAN
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ResourceRequestExisted (
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IN PCI_RESOURCE_NODE *Bridge
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);
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/**
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Initialize resource pool structure.
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@param ResourcePool Point to resource pool structure. This pool
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is reset to all zero when returned.
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@param ResourceType Type of resource.
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**/
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VOID
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InitializeResourcePool (
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IN OUT PCI_RESOURCE_NODE *ResourcePool,
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IN PCI_BAR_TYPE ResourceType
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);
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/**
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Destory given resource tree.
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@param Bridge PCI resource root node of resource tree.
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**/
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VOID
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DestroyResourceTree (
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IN PCI_RESOURCE_NODE *Bridge
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);
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/**
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Insert resource padding for P2C.
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@param PciDev Pci device instance.
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@param IoNode Resource info node for IO.
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@param Mem32Node Resource info node for 32-bit memory.
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@param PMem32Node Resource info node for 32-bit Prefetchable Memory.
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@param Mem64Node Resource info node for 64-bit memory.
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@param PMem64Node Resource info node for 64-bit Prefetchable Memory.
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**/
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VOID
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ResourcePaddingForCardBusBridge (
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IN PCI_IO_DEVICE *PciDev,
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IN PCI_RESOURCE_NODE *IoNode,
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IN PCI_RESOURCE_NODE *Mem32Node,
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IN PCI_RESOURCE_NODE *PMem32Node,
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IN PCI_RESOURCE_NODE *Mem64Node,
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IN PCI_RESOURCE_NODE *PMem64Node
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);
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/**
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Program PCI Card device register for given resource node.
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@param Base Base address of PCI Card device to be programmed.
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@param Node Given resource node.
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**/
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VOID
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ProgramP2C (
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IN UINT64 Base,
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IN PCI_RESOURCE_NODE *Node
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);
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/**
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Create padding resource node.
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@param PciDev Pci device instance.
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@param IoNode Resource info node for IO.
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@param Mem32Node Resource info node for 32-bit memory.
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@param PMem32Node Resource info node for 32-bit Prefetchable Memory.
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@param Mem64Node Resource info node for 64-bit memory.
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@param PMem64Node Resource info node for 64-bit Prefetchable Memory.
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**/
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VOID
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ApplyResourcePadding (
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IN PCI_IO_DEVICE *PciDev,
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IN PCI_RESOURCE_NODE *IoNode,
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IN PCI_RESOURCE_NODE *Mem32Node,
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IN PCI_RESOURCE_NODE *PMem32Node,
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IN PCI_RESOURCE_NODE *Mem64Node,
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IN PCI_RESOURCE_NODE *PMem64Node
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);
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/**
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Get padding resource for PCI-PCI bridge.
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@param PciIoDevice PCI-PCI bridge device instance.
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@note Feature flag PcdPciBusHotplugDeviceSupport determines
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whether need to pad resource for them.
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**/
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VOID
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GetResourcePaddingPpb (
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IN PCI_IO_DEVICE *PciIoDevice
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);
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#endif
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