PerformancePkg/Library/TscTimerLib/DxeTscTimerLib.inf

   1 ## @file
   2 #  Dxe 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                      = DxeTscTimerLib
  28   FILE_GUID                      = 95ab030f-b4fd-4ee4-92a5-9e04e87634d9
  29   MODULE_TYPE                    = DXE_DRIVER
  30   VERSION_STRING                 = 1.0
  31   LIBRARY_CLASS                  = TimerLib|DXE_CORE DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SMM_DRIVER UEFI_APPLICATION UEFI_DRIVER SMM_CORE
  32
  33   CONSTRUCTOR                    = DxeTscTimerLibConstructor
  34
  35
  36 #
  37 #  VALID_ARCHITECTURES           = IA32 X64
  38 #
  39
  40 [Sources.common]
  41   TscTimerLibShare.c
  42   DxeTscTimerLib.c
  43   TscTimerLibInternal.h
  44
  45
  46 [Packages]
  47   MdePkg/MdePkg.dec
  48   PerformancePkg/PerformancePkg.dec
  49
  50
  51 [LibraryClasses]
  52   UefiBootServicesTableLib
  53   PcdLib
  54   PciLib
  55   IoLib
  56   BaseLib
  57   UefiLib
  58   DebugLib
  59
  60 [Guids]
  61   gEfiTscFrequencyGuid                          ## CONSUMES ## SystemTable
  62
  63 [Pcd.common]
  64   gPerformancePkgTokenSpaceGuid.PcdPerfPkgAcpiIoPortBaseAddress   ## SOMETIMES_CONSUMES