## @file

# Pei Timer Library which uses the Time Stamp Counter in the processor.

#

# A version of the Timer Library using the processor's TSC.

# The time stamp counter in newer processors may support an enhancement, referred to as invariant TSC.

# The invariant TSC runs at a constant rate in all ACPI P-, C-. and T-states.

# This is the architectural behavior moving forward.

# TSC reads are much more efficient and do not incur the overhead associated with a ring transition or

# access to a platform resource.

#

# Copyright (c) 2009 - 2011, 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.

#

##

[Defines]

INF_VERSION = 0x00010005

BASE_NAME = PeiTscTimerLib

FILE_GUID = 342C36C0-15DF-43b4-9EC9-FBF748BFB3D1

MODULE_TYPE = PEIM

VERSION_STRING = 1.0

LIBRARY_CLASS = TimerLib|PEIM PEI_CORE

#

# VALID_ARCHITECTURES = IA32 X64

#

[Sources.common]

TscTimerLibShare.c

PeiTscTimerLib.c

TscTimerLibInternal.h

[Packages]

MdePkg/MdePkg.dec

PerformancePkg/PerformancePkg.dec

[LibraryClasses]

PcdLib

PciLib

IoLib

BaseLib

HobLib

[Guids]

gEfiTscFrequencyGuid ## PRODUCES ## Hob

[Pcd.common]

gPerformancePkgTokenSpaceGuid.PcdPerfPkgAcpiIoPortBaseAddress