From: ftillier <ftillier@ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86>
Date: Mon, 19 Sep 2005 07:32:51 +0000 (+0000)
Subject: [COMPLIB] Add support for retrieveing high resolution counter tick
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=e8b1d5a2661b0ac5f30f97008a360890ae52b975;p=~shefty%2Frdma-win.git

[COMPLIB] Add support for retrieveing high resolution counter tick
count and frequency.

Signed-off-by: Fab Tillier (ftillier@silverstorm.com)
Signed-off-by: Yossi Leybovich (sleybo@mellanox.co.il)


git-svn-id: svn://openib.tc.cornell.edu/gen1@75 ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86
---

diff --git a/trunk/core/complib/user/cl_timer.c b/trunk/core/complib/user/cl_timer.c
index 9df169f4..81c5b922 100644
--- a/trunk/core/complib/user/cl_timer.c
+++ b/trunk/core/complib/user/cl_timer.c
@@ -169,3 +169,27 @@ cl_get_time_stamp_sec( void )
 {
 	return( (uint32_t)(cl_get_time_stamp() / SEC_TO_MICRO) );
 }
+
+
+uint64_t
+cl_get_tick_count( void )
+{
+	LARGE_INTEGER	tick_count;
+
+	if( !QueryPerformanceCounter( &tick_count ) )
+		return( 0 );
+
+	return tick_count.QuadPart;
+}
+
+
+uint64_t
+cl_get_frequency( void )
+{
+	LARGE_INTEGER	frequency;
+
+	if( !QueryPerformanceFrequency( &frequency ) )
+		return( 0 );
+
+	return frequency.QuadPart;
+}
diff --git a/trunk/inc/complib/cl_timer.h b/trunk/inc/complib/cl_timer.h
index a7f36249..7ea26417 100644
--- a/trunk/inc/complib/cl_timer.h
+++ b/trunk/inc/complib/cl_timer.h
@@ -348,7 +348,31 @@ cl_get_time_stamp( void );
 *	Time elapsed, in microseconds, since the system was booted.
 *
 * SEE ALSO
-*	Timer, cl_get_time_stamp_sec
+*	Timer, cl_get_time_stamp_usec, cl_get_time_stamp_sec
+*********/
+
+
+/****f* Component Library: Time Stamp/cl_get_time_stamp_usec
+* NAME
+*	cl_get_time_stamp_usec
+*
+* DESCRIPTION
+*	The cl_get_time_stamp_usec function returns the current time stamp in
+*	microseconds since the system was booted.
+*
+* SYNOPSIS
+*/
+CL_INLINE uint64_t CL_API
+cl_get_time_stamp_usec( void )
+{
+	return cl_get_time_stamp();
+}
+/*
+* RETURN VALUE
+*	Time elapsed, in microseconds, since the system was booted.
+*
+* SEE ALSO
+*	Timer, cl_get_time_stamp, cl_get_time_stamp_sec
 *********/
 
 
@@ -373,6 +397,48 @@ cl_get_time_stamp_sec( void );
 *********/
 
 
+/****f* Component Library: Time Stamp/cl_get_tick_count
+* NAME
+*	cl_get_tick_count
+*
+* DESCRIPTION
+*	The cl_get_tick_count function returns the raw high-resolution
+*	performance counter value.
+*
+* SYNOPSIS
+*/
+CL_EXPORT uint64_t CL_API
+cl_get_tick_count( void );
+/*
+* RETURN VALUE
+*	Value of the high-resolution performance counter.
+*
+* SEE ALSO
+*	Timer, cl_get_time_stamp, cl_get_frequency
+*********/
+
+
+/****f* Component Library: Time Stamp/cl_get_frequency
+* NAME
+*	cl_get_frequency
+*
+* DESCRIPTION
+*	The cl_get_frequency function returns the frequency of the
+*	high-resolution performance counter.
+*
+* SYNOPSIS
+*/
+CL_EXPORT uint64_t CL_API
+cl_get_frequency( void );
+/*
+* RETURN VALUE
+*	The frequency of the high-resolution performance counter.
+*
+* SEE ALSO
+*	Timer, cl_get_time_stamp, cl_get_tick_count
+*********/
+
+
 #ifdef __cplusplus
 }	/* extern "C" */
 #endif
diff --git a/trunk/inc/kernel/complib/cl_timer_osd.h b/trunk/inc/kernel/complib/cl_timer_osd.h
index c7c51151..e09813b3 100644
--- a/trunk/inc/kernel/complib/cl_timer_osd.h
+++ b/trunk/inc/kernel/complib/cl_timer_osd.h
@@ -77,6 +77,24 @@ cl_get_time_stamp_sec( void )
 	return( (uint32_t)(KeQueryInterruptTime() / HUNDREDNS_TO_SEC) );
 }
 
+CL_INLINE uint64_t CL_API
+cl_get_tick_count( void )
+{
+	LARGE_INTEGER	tick_count;
+
+	tick_count = KeQueryPerformanceCounter( NULL );
+	return tick_count.QuadPart;
+}
+
+CL_INLINE uint64_t CL_API
+cl_get_frequency( void )
+{
+	LARGE_INTEGER	frequency;
+
+	KeQueryPerformanceCounter( &frequency );
+	return frequency.QuadPart;
+}
+
 #ifdef __cplusplus
 }	/* extern "C" */
 #endif