/** @file | |
Debug Port Library implementation based on usb3 debug port. | |
Copyright (c) 2014 - 2016, 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 | |
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. | |
**/ | |
#include <Base.h> | |
#include <PiDxe.h> | |
#include <Library/UefiBootServicesTableLib.h> | |
#include "DebugCommunicationLibUsb3Internal.h" | |
/** | |
Allocate aligned memory for XHC's usage. | |
@param BufferSize The size, in bytes, of the Buffer. | |
@return A pointer to the allocated buffer or NULL if allocation fails. | |
**/ | |
VOID* | |
AllocateAlignBuffer ( | |
IN UINTN BufferSize | |
) | |
{ | |
EFI_PHYSICAL_ADDRESS TmpAddr; | |
EFI_STATUS Status; | |
VOID *Buf; | |
Buf = NULL; | |
if (gBS != NULL) { | |
TmpAddr = 0xFFFFFFFF; | |
Status = gBS->AllocatePages ( | |
AllocateMaxAddress, | |
EfiACPIMemoryNVS, | |
EFI_SIZE_TO_PAGES (BufferSize), | |
&TmpAddr | |
); | |
if (!EFI_ERROR (Status)) { | |
Buf = (VOID *) (UINTN) TmpAddr; | |
} | |
} | |
return Buf; | |
} |