blob: 3d53b21db7ac4fde023600fc913b643ced71167e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
## @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
TscTimerLibInternal.h
[Packages]
MdePkg/MdePkg.dec
PerformancePkg/PerformancePkg.dec
[LibraryClasses]
PcdLib
PciLib
IoLib
BaseLib
[Pcd.common]
gPerformancePkgTokenSpaceGuid.PcdPerfPkgAcpiIoPortBaseAddress
|
