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The PCI host bridge can signal failures in its initialization to 

the PCI Bus driver through the function call NotifyPhase().

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14483 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Olivier Martin 2013-07-18 07:21:35 +00:00 committed by niruiyu
parent 591fb3781a
commit ea8d98fa9f
2 changed files with 32 additions and 8 deletions
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12
MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumerator.c
View File

@ -82,7 +82,11 @@ PciEnumerator (
//
// Notify the pci bus enumeration is about to begin
//
NotifyPhase (PciResAlloc, EfiPciHostBridgeBeginEnumeration);
Status = NotifyPhase (PciResAlloc, EfiPciHostBridgeBeginEnumeration);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Start the bus allocation phase
@ -105,7 +109,11 @@ PciEnumerator (
//
// Notify the pci bus enumeration is about to complete
//
NotifyPhase (PciResAlloc, EfiPciHostBridgeEndEnumeration);
Status = NotifyPhase (PciResAlloc, EfiPciHostBridgeEndEnumeration);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Process P2C

28
MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.c
View File

@ -759,7 +759,11 @@ PciHostBridgeResourceAllocator (
//
// Notify pci bus driver starts to program the resource
//
NotifyPhase (PciResAlloc, EfiPciHostBridgeSetResources);
Status = NotifyPhase (PciResAlloc, EfiPciHostBridgeSetResources);
if (EFI_ERROR (Status)) {
return Status;
}
RootBridgeDev = NULL;
@ -898,9 +902,9 @@ PciHostBridgeResourceAllocator (
//
// Notify the resource allocation phase is to end
//
NotifyPhase (PciResAlloc, EfiPciHostBridgeEndResourceAllocation);
Status = NotifyPhase (PciResAlloc, EfiPciHostBridgeEndResourceAllocation);
return EFI_SUCCESS;
return Status;
}
/**
@ -1443,7 +1447,11 @@ PciHostBridgeEnumerator (
//
// Notify the bus allocation phase is about to start
//
NotifyPhase (PciResAlloc, EfiPciHostBridgeBeginBusAllocation);
Status = NotifyPhase (PciResAlloc, EfiPciHostBridgeBeginBusAllocation);
if (EFI_ERROR (Status)) {
return Status;
}
DEBUG((EFI_D_INFO, "PCI Bus First Scanning\n"));
RootBridgeHandle = NULL;
@ -1531,7 +1539,11 @@ PciHostBridgeEnumerator (
//
// Notify the bus allocation phase is about to start for the 2nd time
//
NotifyPhase (PciResAlloc, EfiPciHostBridgeBeginBusAllocation);
Status = NotifyPhase (PciResAlloc, EfiPciHostBridgeBeginBusAllocation);
if (EFI_ERROR (Status)) {
return Status;
}
DEBUG((EFI_D_INFO, "PCI Bus Second Scanning\n"));
RootBridgeHandle = NULL;
@ -1569,7 +1581,11 @@ PciHostBridgeEnumerator (
//
// Notify the resource allocation phase is to start
//
NotifyPhase (PciResAlloc, EfiPciHostBridgeBeginResourceAllocation);
Status = NotifyPhase (PciResAlloc, EfiPciHostBridgeBeginResourceAllocation);
if (EFI_ERROR (Status)) {
return Status;
}
RootBridgeHandle = NULL;
while (PciResAlloc->GetNextRootBridge (PciResAlloc, &RootBridgeHandle) == EFI_SUCCESS) {