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Layer AllocateBuffer and FreeBuffer on the PciRootBridgeIo too. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5307 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qwang12 2008-05-29 06:22:28 +00:00
parent fd4ae73375
commit 6ea838c360
1 changed files with 34 additions and 12 deletions
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46
EdkCompatibilityPkg/Compatibility/DeviceIoToPciRootBridgeIoThunk/DeviceIoToPciRootBridgeIoThunk.c
View File

@ -1,5 +1,8 @@
/** @file
Module Layer Device I/O on top of PCI Root Bridge I/O (Segment 0)
Module produces Device I/O on top of PCI Root Bridge I/O for Segment 0 only.
This is a valid assumption because many of the EFI 1.02/EFI 1.10 systems that may have provided
Device I/O were single segment platforms. The goal of the ECP is to provide compatibility with the
drivers/apps that may have used Device I/O.
Device I/O is on list of deprecated protocols for UEFI 2.0 and later.
This module module layers Device I/O on top of PCI Root Bridge I/O (Segment 0)
@ -451,7 +454,8 @@ PciRootBridgeIoNotificationEvent (
ASSERT_EFI_ERROR (Status);
//
// We only install Device IO for PCI bus in Segment 0
// We only install Device IO for PCI bus in Segment 0.
// See the file description at @file for details.
//
if (PciRootBridgeIo->SegmentNumber != 0) {
continue;
@ -1107,8 +1111,12 @@ DeviceIoAllocateBuffer (
IN OUT EFI_PHYSICAL_ADDRESS *PhysicalAddress
)
{
EFI_STATUS Status;
EFI_PHYSICAL_ADDRESS HostAddress;
EFI_STATUS Status;
EFI_PHYSICAL_ADDRESS HostAddress;
DEVICE_IO_PRIVATE_DATA *Private;
VOID *HostAddress2;
Private = DEVICE_IO_PRIVATE_DATA_FROM_THIS (This);
HostAddress = *PhysicalAddress;
@ -1129,18 +1137,23 @@ DeviceIoAllocateBuffer (
HostAddress = MAX_COMMON_BUFFER;
}
Status = gBS->AllocatePages (
Type,
MemoryType,
Pages,
&HostAddress
);
HostAddress2 = (VOID *) (UINTN) (HostAddress);
Status = Private->PciRootBridgeIo->AllocateBuffer (
Private->PciRootBridgeIo,
Type,
MemoryType,
Pages,
&HostAddress2,
EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE |
EFI_PCI_ATTRIBUTE_MEMORY_CACHED
);
if (EFI_ERROR (Status)) {
return Status;
}
*PhysicalAddress = HostAddress;
*PhysicalAddress = (EFI_PHYSICAL_ADDRESS) (UINTN) HostAddress2;
return EFI_SUCCESS;
}
@ -1195,10 +1208,19 @@ DeviceIoFreeBuffer (
IN EFI_PHYSICAL_ADDRESS HostAddress
)
{
DEVICE_IO_PRIVATE_DATA *Private;
Private = DEVICE_IO_PRIVATE_DATA_FROM_THIS (This);
if (((HostAddress & EFI_PAGE_MASK) != 0) || (Pages <= 0)) {
return EFI_INVALID_PARAMETER;
}
return gBS->FreePages (HostAddress, Pages);
return Private->PciRootBridgeIo->FreeBuffer (
Private->PciRootBridgeIo,
Pages,
(VOID *) (UINTN) HostAddress
);
}