1 files changed, 54 insertions, 0 deletions
diff --git a/PerformancePkg/Library/TscTimerLib/BaseTscTimerLib.inf b/PerformancePkg/Library/TscTimerLib/BaseTscTimerLib.inf
new file mode 100644
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+++ b/PerformancePkg/Library/TscTimerLib/BaseTscTimerLib.inf
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+## @file
+#  Base Timer Library which uses the Time Stamp Counter in the processor.
+#
+#  Note: There will be 1ms penalty to get TSC frequency every time
+#    by waiting for 3579 clocks of the ACPI timer, or 1ms.
+#
+#  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                      = BaseTscTimerLib
+  FILE_GUID                      = D29338B9-50FE-4e4f-B7D4-A150A2C1F4FB
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = TimerLib
+
+
+#
+#  VALID_ARCHITECTURES           = IA32 X64
+#
+
+[Sources.common]
+  TscTimerLibShare.c
+  BaseTscTimerLib.c
+
+
+[Packages]
+  MdePkg/MdePkg.dec
+  PerformancePkg/PerformancePkg.dec
+
+
+[LibraryClasses]
+  PcdLib
+  PciLib
+  IoLib
+  BaseLib
+
+[Pcd.common]
+  gPerformancePkgTokenSpaceGuid.PcdPerfPkgAcpiIoPortBaseAddress