From b9610b9cb5b34b202251d8e08c02a788240e4cdd Mon Sep 17 00:00:00 2001 From: xdu2 Date: Thu, 25 Aug 2011 05:59:17 +0000 Subject: Add new API GetTimeInNanoSecond() to TimerLib to convert elapsed ticks to time in unit of nanoseconds. Signed-off-by: xdu2 Reviewed-by: mdkinney git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12206 6f19259b-4bc3-4df7-8a09-765794883524 --- MdePkg/Include/Library/TimerLib.h | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) (limited to 'MdePkg/Include') diff --git a/MdePkg/Include/Library/TimerLib.h b/MdePkg/Include/Library/TimerLib.h index c42f894186..ecc3ad3ff7 100644 --- a/MdePkg/Include/Library/TimerLib.h +++ b/MdePkg/Include/Library/TimerLib.h @@ -1,7 +1,7 @@ /** @file Provides calibrated delay and performance counter services. -Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
+Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.
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 @@ -94,4 +94,21 @@ GetPerformanceCounterProperties ( OUT UINT64 *EndValue OPTIONAL ); +/** + Converts elapsed ticks of performance counter to time in nanoseconds. + + This function converts the elapsed ticks of running performance counter to + time value in unit of nanoseconds. + + @param Ticks The number of elapsed ticks of running performance counter. + + @return The elapsed time in nanoseconds. + +**/ +UINT64 +EFIAPI +GetTimeInNanoSecond ( + IN UINT64 Ticks + ); + #endif -- cgit v1.2.3