From: Star Zeng <star.zeng@intel.com>
Date: Mon, 8 Aug 2016 03:39:25 +0000 (+0800)
Subject: PcAtChipsetPkg AcpiTimerLib: Get more accurate TSC Frequency
X-Git-Tag: edk2-stable201903~6039
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=62b8b5be713dd1f801cd44e4eb28f68585a9bd85;hp=62b8b5be713dd1f801cd44e4eb28f68585a9bd85;ds=inline

PcAtChipsetPkg AcpiTimerLib: Get more accurate TSC Frequency

Minimize the code overhead between the two TSC reads by adding
new internal API to calculate TSC Frequency instead of reusing
MicroSecondDelay ().

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Paul A Lohr <paul.a.lohr@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
---