PerformancePkg/Library/TscTimerLib/PeiTscTimerLib.inf

   1 ## @file
   2 #  Pei Timer Library which uses the Time Stamp Counter in the processor.
   3 #
   4 #  Note: This library is a sample implementation that depends on chipset ACPI timer.
   5 #    It may not work on new generation chipset. PcAtChipsetPkg AcpiTimerLib is
   6 #    the generic timer library that can replace this one.
   7 #
   8 #  A version of the Timer Library using the processor's TSC.
   9 #  The time stamp counter in newer processors may support an enhancement, referred to as invariant TSC.
  10 #  The invariant TSC runs at a constant rate in all ACPI P-, C-. and T-states.
  11 #  This is the architectural behavior moving forward.
  12 #  TSC reads are much more efficient and do not incur the overhead associated with a ring transition or
  13 #  access to a platform resource.
  14 #
  15 #  Copyright (c) 2009 - 2015, Intel Corporation. All rights reserved.<BR>
  16 #  This program and the accompanying materials
  17 #  are licensed and made available under the terms and conditions of the BSD License
  18 #  which accompanies this distribution. The full text of the license may be found at
  19 #  http://opensource.org/licenses/bsd-license.php
  20 #  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  21 #  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  22 #
  23 ##
  24
  25 [Defines]
  26   INF_VERSION                    = 0x00010005
  27   BASE_NAME                      = PeiTscTimerLib
  28   FILE_GUID                      = 342C36C0-15DF-43b4-9EC9-FBF748BFB3D1
  29   MODULE_TYPE                    = PEIM
  30   VERSION_STRING                 = 1.0
  31   LIBRARY_CLASS                  = TimerLib|PEIM PEI_CORE
  32
  33
  34 #
  35 #  VALID_ARCHITECTURES           = IA32 X64
  36 #
  37
  38 [Sources.common]
  39   TscTimerLibShare.c
  40   PeiTscTimerLib.c
  41   TscTimerLibInternal.h
  42
  43
  44 [Packages]
  45   MdePkg/MdePkg.dec
  46   PerformancePkg/PerformancePkg.dec
  47
  48
  49 [LibraryClasses]
  50   PcdLib
  51   PciLib
  52   IoLib
  53   BaseLib
  54   HobLib
  55
  56 [Guids]
  57   gEfiTscFrequencyGuid                          ## PRODUCES ## HOB
  58
  59 [Pcd.common]
  60   gPerformancePkgTokenSpaceGuid.PcdPerfPkgAcpiIoPortBaseAddress     ## SOMETIMES_CONSUMES