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MdeModulePkg: Fix a PCI resource dumping bug in PciBusDxe driver 

The resource dumping logic contains a bug which cannot dump the
resource for hot plug controller correctly. The patch fixes this
bug.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18718 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ruiyu Ni 2015-11-03 02:33:41 +00:00 committed by niruiyu
parent b3800cfd10
commit f67bd32dda
3 changed files with 162 additions and 79 deletions
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80
MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
View File

@ -324,6 +324,81 @@ PciSearchDevice (
return EFI_SUCCESS;
}
/**
Dump the PPB padding resource information.
@param PciIoDevice PCI IO instance.
@param ResourceType The desired resource type to dump.
PciBarTypeUnknown means to dump all types of resources.
**/
VOID
DumpPpbPaddingResource (
IN PCI_IO_DEVICE *PciIoDevice,
IN PCI_BAR_TYPE ResourceType
)
{
EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptor;
PCI_BAR_TYPE Type;
if (PciIoDevice->ResourcePaddingDescriptors == NULL) {
return;
}
if (ResourceType == PciBarTypeIo16 || ResourceType == PciBarTypeIo32) {
ResourceType = PciBarTypeIo;
}
for (Descriptor = PciIoDevice->ResourcePaddingDescriptors; Descriptor->Desc != ACPI_END_TAG_DESCRIPTOR; Descriptor++) {
Type = PciBarTypeUnknown;
if (Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR && Descriptor->ResType == ACPI_ADDRESS_SPACE_TYPE_IO) {
Type = PciBarTypeIo;
} else if (Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR && Descriptor->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM) {
if (Descriptor->AddrSpaceGranularity == 32) {
//
// prefechable
//
if (Descriptor->SpecificFlag == EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_PREFETCHABLE) {
Type = PciBarTypePMem32;
}
//
// Non-prefechable
//
if (Descriptor->SpecificFlag == 0) {
Type = PciBarTypeMem32;
}
}
if (Descriptor->AddrSpaceGranularity == 64) {
//
// prefechable
//
if (Descriptor->SpecificFlag == EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_PREFETCHABLE) {
Type = PciBarTypePMem64;
}
//
// Non-prefechable
//
if (Descriptor->SpecificFlag == 0) {
Type = PciBarTypeMem64;
}
}
}
if ((Type != PciBarTypeUnknown) && ((ResourceType == PciBarTypeUnknown) || (ResourceType == Type))) {
DEBUG ((
EFI_D_INFO,
" Padding: Type = %s; Alignment = 0x%lx;\tLength = 0x%lx\n",
mBarTypeStr[Type], Descriptor->AddrRangeMax, Descriptor->AddrLen
));
}
}
}
/**
Dump the PCI BAR information.
@ -586,7 +661,10 @@ GatherPpbInfo (
GetResourcePaddingPpb (PciIoDevice);
DEBUG_CODE (DumpPciBars (PciIoDevice););
DEBUG_CODE (
DumpPpbPaddingResource (PciIoDevice, PciBarTypeUnknown);
DumpPciBars (PciIoDevice);
);
return PciIoDevice;
}

15
MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.h
View File

@ -1,7 +1,7 @@
/** @file
PCI emumeration support functions declaration for PCI Bus module.
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
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
@ -460,4 +460,17 @@ ResetAllPpbBusNumber (
IN UINT8 StartBusNumber
);
/**
Dump the PPB padding resource information.
@param PciIoDevice PCI IO instance.
@param ResourceType The desired resource type to dump.
PciBarTypeUnknown means to dump all types of resources.
**/
VOID
DumpPpbPaddingResource (
IN PCI_IO_DEVICE *PciIoDevice,
IN PCI_BAR_TYPE ResourceType
);
#endif

130
MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.c
View File

@ -1,7 +1,7 @@
/** @file
Internal library implementation for PCI Bus module.
Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@ -188,19 +188,21 @@ DumpBridgeResource (
BridgeResource->PciDev->PciBar[BridgeResource->Bar].BaseAddress,
BridgeResource->Length, BridgeResource->Alignment
));
for ( Link = BridgeResource->ChildList.ForwardLink
; Link != &BridgeResource->ChildList
; Link = Link->ForwardLink
for ( Link = GetFirstNode (&BridgeResource->ChildList)
; !IsNull (&BridgeResource->ChildList, Link)
; Link = GetNextNode (&BridgeResource->ChildList, Link)
) {
Resource = RESOURCE_NODE_FROM_LINK (Link);
if (Resource->ResourceUsage == PciResUsageTypical) {
Bar = Resource->Virtual ? Resource->PciDev->VfPciBar : Resource->PciDev->PciBar;
DEBUG ((
EFI_D_INFO, " Base = 0x%lx;\tLength = 0x%lx;\tAlignment = 0x%lx;\tOwner = %s ",
EFI_D_INFO, " Base = 0x%lx;\tLength = 0x%lx;\tAlignment = 0x%lx;\tOwner = %s [%02x|%02x|%02x:",
Bar[Resource->Bar].BaseAddress, Resource->Length, Resource->Alignment,
IS_PCI_BRIDGE (&Resource->PciDev->Pci) ? L"PPB" :
IS_CARDBUS_BRIDGE (&Resource->PciDev->Pci) ? L"P2C" :
L"PCI"
L"PCI",
Resource->PciDev->BusNumber, Resource->PciDev->DeviceNumber,
Resource->PciDev->FunctionNumber
));
if ((!IS_PCI_BRIDGE (&Resource->PciDev->Pci) && !IS_CARDBUS_BRIDGE (&Resource->PciDev->Pci)) ||
@ -210,24 +212,20 @@ DumpBridgeResource (
//
// The resource requirement comes from the device itself.
//
DEBUG ((
EFI_D_INFO, " [%02x|%02x|%02x:%02x]\n",
Resource->PciDev->BusNumber, Resource->PciDev->DeviceNumber,
Resource->PciDev->FunctionNumber, Bar[Resource->Bar].Offset
));
DEBUG ((EFI_D_INFO, "%02x]", Bar[Resource->Bar].Offset));
} else {
//
// The resource requirement comes from the subordinate devices.
//
DEBUG ((
EFI_D_INFO, " [%02x|%02x|%02x:**]\n",
Resource->PciDev->BusNumber, Resource->PciDev->DeviceNumber,
Resource->PciDev->FunctionNumber
));
DEBUG ((EFI_D_INFO, "**]"));
}
} else {
DEBUG ((EFI_D_INFO, " Padding:Length = 0x%lx;\tAlignment = 0x%lx\n", Resource->Length, Resource->Alignment));
DEBUG ((EFI_D_INFO, " Base = Padding;\tLength = 0x%lx;\tAlignment = 0x%lx", Resource->Length, Resource->Alignment));
}
if (BridgeResource->ResType != Resource->ResType) {
DEBUG ((EFI_D_INFO, "; Type = %s", mBarTypeStr[MIN (Resource->ResType, PciBarTypeMaxType)]));
}
DEBUG ((EFI_D_INFO, "\n"));
}
}
}
@ -237,61 +235,59 @@ DumpBridgeResource (
@param[in] Device Pointer to PCI_IO_DEVICE.
@param[in] BridgeResource Pointer to PCI_RESOURCE_NODE.
@param[out] DeviceResources Pointer to a buffer to receive resources for the Device.
@return !NULL The corresponding resource node for the Device.
@return NULL No corresponding resource node for the Device.
@return Count of the resource descriptors returned.
**/
PCI_RESOURCE_NODE *
UINTN
FindResourceNode (
IN PCI_IO_DEVICE *Device,
IN PCI_RESOURCE_NODE *BridgeResource
IN PCI_RESOURCE_NODE *BridgeResource,
OUT PCI_RESOURCE_NODE **DeviceResources OPTIONAL
)
{
LIST_ENTRY *Link;
PCI_RESOURCE_NODE *Resource;
UINTN Count;
Count = 0;
for ( Link = BridgeResource->ChildList.ForwardLink
; Link != &BridgeResource->ChildList
; Link = Link->ForwardLink
) {
Resource = RESOURCE_NODE_FROM_LINK (Link);
if (Resource->PciDev == Device) {
return Resource;
if (DeviceResources != NULL) {
DeviceResources[Count] = Resource;
}
Count++;
}
}
return NULL;
return Count;
}
/**
Dump the resource map of all the devices under Bridge.
@param[in] Bridge Bridge device instance.
@param[in] IoNode IO resource descriptor for the bridge device.
@param[in] Mem32Node Mem32 resource descriptor for the bridge device.
@param[in] PMem32Node PMem32 resource descriptor for the bridge device.
@param[in] Mem64Node Mem64 resource descriptor for the bridge device.
@param[in] PMem64Node PMem64 resource descriptor for the bridge device.
@param[in] Resources Resource descriptors for the bridge device.
@param[in] ResourceCount Count of resource descriptors.
**/
VOID
DumpResourceMap (
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
IN PCI_RESOURCE_NODE **Resources,
IN UINTN ResourceCount
)
{
EFI_STATUS Status;
LIST_ENTRY *Link;
PCI_IO_DEVICE *Device;
PCI_RESOURCE_NODE *ChildIoNode;
PCI_RESOURCE_NODE *ChildMem32Node;
PCI_RESOURCE_NODE *ChildPMem32Node;
PCI_RESOURCE_NODE *ChildMem64Node;
PCI_RESOURCE_NODE *ChildPMem64Node;
UINTN Index;
CHAR16 *Str;
PCI_RESOURCE_NODE **ChildResources;
UINTN ChildResourceCount;
DEBUG ((EFI_D_INFO, "PciBus: Resource Map for "));
@ -320,11 +316,9 @@ DumpResourceMap (
}
}
DumpBridgeResource (IoNode);
DumpBridgeResource (Mem32Node);
DumpBridgeResource (PMem32Node);
DumpBridgeResource (Mem64Node);
DumpBridgeResource (PMem64Node);
for (Index = 0; Index < ResourceCount; Index++) {
DumpBridgeResource (Resources[Index]);
}
DEBUG ((EFI_D_INFO, "\n"));
for ( Link = Bridge->ChildList.ForwardLink
@ -334,20 +328,19 @@ DumpResourceMap (
Device = PCI_IO_DEVICE_FROM_LINK (Link);
if (IS_PCI_BRIDGE (&Device->Pci)) {
ChildIoNode = (IoNode == NULL ? NULL : FindResourceNode (Device, IoNode));
ChildMem32Node = (Mem32Node == NULL ? NULL : FindResourceNode (Device, Mem32Node));
ChildPMem32Node = (PMem32Node == NULL ? NULL : FindResourceNode (Device, PMem32Node));
ChildMem64Node = (Mem64Node == NULL ? NULL : FindResourceNode (Device, Mem64Node));
ChildPMem64Node = (PMem64Node == NULL ? NULL : FindResourceNode (Device, PMem64Node));
ChildResourceCount = 0;
for (Index = 0; Index < ResourceCount; Index++) {
ChildResourceCount += FindResourceNode (Device, Resources[Index], NULL);
}
ChildResources = AllocatePool (sizeof (PCI_RESOURCE_NODE *) * ChildResourceCount);
ASSERT (ChildResources != NULL);
ChildResourceCount = 0;
for (Index = 0; Index < ResourceCount; Index++) {
ChildResourceCount += FindResourceNode (Device, Resources[Index], &ChildResources[ChildResourceCount]);
}
DumpResourceMap (
Device,
ChildIoNode,
ChildMem32Node,
ChildPMem32Node,
ChildMem64Node,
ChildPMem64Node
);
DumpResourceMap (Device, ChildResources, ChildResourceCount);
FreePool (ChildResources);
}
}
}
@ -807,11 +800,11 @@ PciHostBridgeResourceAllocator (
// Create the entire system resource map from the information collected by
// enumerator. Several resource tree was created
//
IoBridge = FindResourceNode (RootBridgeDev, &IoPool);
Mem32Bridge = FindResourceNode (RootBridgeDev, &Mem32Pool);
PMem32Bridge = FindResourceNode (RootBridgeDev, &PMem32Pool);
Mem64Bridge = FindResourceNode (RootBridgeDev, &Mem64Pool);
PMem64Bridge = FindResourceNode (RootBridgeDev, &PMem64Pool);
FindResourceNode (RootBridgeDev, &IoPool, &IoBridge);
FindResourceNode (RootBridgeDev, &Mem32Pool, &Mem32Bridge);
FindResourceNode (RootBridgeDev, &PMem32Pool, &PMem32Bridge);
FindResourceNode (RootBridgeDev, &Mem64Pool, &Mem64Bridge);
FindResourceNode (RootBridgeDev, &PMem64Pool, &PMem64Bridge);
ASSERT (IoBridge != NULL);
ASSERT (Mem32Bridge != NULL);
@ -869,14 +862,13 @@ PciHostBridgeResourceAllocator (
// Dump the resource map for current root bridge
//
DEBUG_CODE (
DumpResourceMap (
RootBridgeDev,
IoBridge,
Mem32Bridge,
PMem32Bridge,
Mem64Bridge,
PMem64Bridge
);
PCI_RESOURCE_NODE *Resources[5];
Resources[0] = IoBridge;
Resources[1] = Mem32Bridge;
Resources[2] = PMem32Bridge;
Resources[3] = Mem64Bridge;
Resources[4] = PMem64Bridge;
DumpResourceMap (RootBridgeDev, Resources, sizeof (Resources) / sizeof (Resources[0]));
);
FreePool (AcpiConfig);