PerformancePkg/Library/TscTimerLib/BaseTscTimerLib.inf

   1 ## @file
   2 #  Base Timer Library which uses the Time Stamp Counter in the processor.
   3 #
   4 #  Note: There will be 1ms penalty to get TSC frequency every time
   5 #    by waiting for 3579 clocks of the ACPI timer, or 1ms.
   6 #
   7 #  A version of the Timer Library using the processor's TSC.
   8 #  The time stamp counter in newer processors may support an enhancement, referred to as invariant TSC.
   9 #  The invariant TSC runs at a constant rate in all ACPI P-, C-. and T-states.
  10 #  This is the architectural behavior moving forward.
  11 #  TSC reads are much more efficient and do not incur the overhead associated with a ring transition or
  12 #  access to a platform resource.
  13 #
  14 #  Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>
  15 #  This program and the accompanying materials
  16 #  are licensed and made available under the terms and conditions of the BSD License
  17 #  which accompanies this distribution. The full text of the license may be found at
  18 #  http://opensource.org/licenses/bsd-license.php
  19 #  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  20 #  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  21 #
  22 ##
  23
  24 [Defines]
  25   INF_VERSION                    = 0x00010005
  26   BASE_NAME                      = BaseTscTimerLib
  27   FILE_GUID                      = D29338B9-50FE-4e4f-B7D4-A150A2C1F4FB
  28   MODULE_TYPE                    = BASE
  29   VERSION_STRING                 = 1.0
  30   LIBRARY_CLASS                  = TimerLib
  31
  32
  33 #
  34 #  VALID_ARCHITECTURES           = IA32 X64
  35 #
  36
  37 [Sources.common]
  38   TscTimerLibShare.c
  39   BaseTscTimerLib.c
  40
  41
  42 [Packages]
  43   MdePkg/MdePkg.dec
  44   PerformancePkg/PerformancePkg.dec
  45
  46
  47 [LibraryClasses]
  48   PcdLib
  49   PciLib
  50   IoLib
  51   BaseLib
  52
  53 [Pcd.common]
  54   gPerformancePkgTokenSpaceGuid.PcdPerfPkgAcpiIoPortBaseAddress