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UefiCpuPkg/CpuDxe: Fix hard code actual TimerPeriod value

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Current CpuGetTimerValue() implementation return hard code TimerPeriod value. We
could calculate the actual TimerPeriod value over period of time (100us) at the
first time invoking CpuGetTimerValue() and save the TimerPeriod value into one
global variable to avoid delay at the next CpuGetTimerValue() invoking.

https://bugzilla.tianocore.org/show_bug.cgi?id=382

Cc: Feng Tian <feng.tian@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Feng Tian <feng.tian@Intel.com>
This commit is contained in:
Jeff Fan
2017-02-20 16:17:05 +08:00
parent 14f92ded90
commit 7537f8c09a
3 changed files with 25 additions and 3 deletions
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UefiCpuPkg/CpuDxe/CpuDxe.inf
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@@ -43,6 +43,7 @@
HobLib
ReportStatusCodeLib
MpInitLib
TimerLib
[Sources]
CpuDxe.c