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+/** @file
+ Declarations of objects defined internally to the Dp Application.
+
+ Declarations of data and functions which are private to the Dp application.
+ This file should never be referenced by anything other than components of the
+ Dp application. In addition to global data, function declarations for
+ DpUtilities.c, DpTrace.c, and DpProfile.c are included here.
+
+ Copyright (c) 2009 - 2013, 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
+ 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.
+**/
+#ifndef _DP_INTELNAL_H_
+#define _DP_INTELNAL_H_
+
+#define DP_GAUGE_STRING_LENGTH 36
+
+//
+/// Module-Global Variables
+///@{
+extern EFI_HII_HANDLE gDpHiiHandle;
+extern CHAR16 mGaugeString[DP_GAUGE_STRING_LENGTH + 1];
+extern CHAR16 mUnicodeToken[DXE_PERFORMANCE_STRING_SIZE];
+extern UINT64 mInterestThreshold;
+extern BOOLEAN mShowId;
+
+extern PERF_SUMMARY_DATA SummaryData; ///< Create the SummaryData structure and init. to ZERO.
+
+/// Timer Specific Information.
+extern TIMER_INFO TimerInfo;
+
+/// Items for which to gather cumulative statistics.
+extern PERF_CUM_DATA CumData[];
+
+/// Number of items for which we are gathering cumulative statistics.
+extern UINT32 const NumCum;
+
+///@}
+
+/**
+ Calculate an event's duration in timer ticks.
+
+ Given the count direction and the event's start and end timer values,
+ calculate the duration of the event in timer ticks. Information for
+ the current measurement is pointed to by the parameter.
+
+ If the measurement's start time is 1, it indicates that the developer
+ is indicating that the measurement began at the release of reset.
+ The start time is adjusted to the timer's starting count before performing
+ the elapsed time calculation.
+
+ The calculated duration, in ticks, is the absolute difference between
+ the measurement's ending and starting counts.
+
+ @param Measurement Pointer to a MEASUREMENT_RECORD structure containing
+ data for the current measurement.
+
+ @return The 64-bit duration of the event.
+**/
+UINT64
+GetDuration (
+ IN OUT MEASUREMENT_RECORD *Measurement
+ );
+
+/**
+ Determine whether the Measurement record is for an EFI Phase.
+
+ The Token and Module members of the measurement record are checked.
+ Module must be empty and Token must be one of SEC, PEI, DXE, BDS, or SHELL.
+
+ @param[in] Measurement A pointer to the Measurement record to test.
+
+ @retval TRUE The measurement record is for an EFI Phase.
+ @retval FALSE The measurement record is NOT for an EFI Phase.
+**/
+BOOLEAN
+IsPhase(
+ IN MEASUREMENT_RECORD *Measurement
+ );
+
+/**
+ Get the file name portion of the Pdb File Name.
+
+ The portion of the Pdb File Name between the last backslash and
+ either a following period or the end of the string is converted
+ to Unicode and copied into UnicodeBuffer. The name is truncated,
+ if necessary, to ensure that UnicodeBuffer is not overrun.
+
+ @param[in] PdbFileName Pdb file name.
+ @param[out] UnicodeBuffer The resultant Unicode File Name.
+
+**/
+VOID
+GetShortPdbFileName (
+ IN CHAR8 *PdbFileName,
+ OUT CHAR16 *UnicodeBuffer
+ );
+
+/**
+ Get a human readable name for an image handle.
+ The following methods will be tried orderly:
+ 1. Image PDB
+ 2. ComponentName2 protocol
+ 3. FFS UI section
+ 4. Image GUID
+ 5. Image DevicePath
+ 6. Unknown Driver Name
+
+ @param[in] Handle
+
+ @post The resulting Unicode name string is stored in the
+ mGaugeString global array.
+
+**/
+VOID
+GetNameFromHandle (
+ IN EFI_HANDLE Handle
+ );
+
+/**
+ Calculate the Duration in microseconds.
+
+ Duration is multiplied by 1000, instead of Frequency being divided by 1000 or
+ multiplying the result by 1000, in order to maintain precision. Since Duration is
+ a 64-bit value, multiplying it by 1000 is unlikely to produce an overflow.
+
+ The time is calculated as (Duration * 1000) / Timer_Frequency.
+
+ @param[in] Duration The event duration in timer ticks.
+
+ @return A 64-bit value which is the Elapsed time in microseconds.
+**/
+UINT64
+DurationInMicroSeconds (
+ IN UINT64 Duration
+ );
+
+/**
+ Get index of Measurement Record's match in the CumData array.
+
+ If the Measurement's Token value matches a Token in one of the CumData
+ records, the index of the matching record is returned. The returned
+ index is a signed value so that negative values can indicate that
+ the Measurement didn't match any entry in the CumData array.
+
+ @param[in] Measurement A pointer to a Measurement Record to match against the CumData array.
+
+ @retval <0 Token is not in the CumData array.
+ @retval >=0 Return value is the index into CumData where Token is found.
+**/
+INTN
+GetCumulativeItem(
+ IN MEASUREMENT_RECORD *Measurement
+ );
+
+/**
+ Collect verbose statistics about the logged performance measurements.
+
+ General Summary information for all Trace measurements is gathered and
+ stored within the SummaryData structure. This information is both
+ used internally by subsequent reporting functions, and displayed
+ at the end of verbose reports.
+
+ @pre The SummaryData and CumData structures must be initialized
+ prior to calling this function.
+
+ @post The SummaryData and CumData structures contain statistics for the
+ current performance logs.
+**/
+VOID
+GatherStatistics(
+ VOID
+ );
+
+/**
+ Gather and print ALL Trace Records.
+
+ Displays all "interesting" Trace measurements in order.<BR>
+ The number of records displayed is controlled by:
+ - records with a duration less than mInterestThreshold microseconds are not displayed.
+ - No more than Limit records are displayed. A Limit of zero will not limit the output.
+ - If the ExcludeFlag is TRUE, records matching entries in the CumData array are not
+ displayed.
+
+ @pre The mInterestThreshold global variable is set to the shortest duration to be printed.
+ The mGaugeString and mUnicodeToken global arrays are used for temporary string storage.
+ They must not be in use by a calling function.
+
+ @param[in] Limit The number of records to print. Zero is ALL.
+ @param[in] ExcludeFlag TRUE to exclude individual Cumulative items from display.
+
+**/
+VOID
+DumpAllTrace(
+ IN UINTN Limit,
+ IN BOOLEAN ExcludeFlag
+ );
+
+/**
+ Gather and print Raw Trace Records.
+
+ All Trace measurements with a duration greater than or equal to
+ mInterestThreshold are printed without interpretation.
+
+ The number of records displayed is controlled by:
+ - records with a duration less than mInterestThreshold microseconds are not displayed.
+ - No more than Limit records are displayed. A Limit of zero will not limit the output.
+ - If the ExcludeFlag is TRUE, records matching entries in the CumData array are not
+ displayed.
+
+ @pre The mInterestThreshold global variable is set to the shortest duration to be printed.
+
+ @param[in] Limit The number of records to print. Zero is ALL.
+ @param[in] ExcludeFlag TRUE to exclude individual Cumulative items from display.
+
+**/
+VOID
+DumpRawTrace(
+ IN UINTN Limit,
+ IN BOOLEAN ExcludeFlag
+ );
+
+/**
+ Gather and print Major Phase metrics.
+
+ @param[in] Ticker The timer value for the END of Shell phase
+
+**/
+VOID
+ProcessPhases(
+ IN UINT64 Ticker
+ );
+
+
+/**
+ Gather and print Handle data.
+
+ @param[in] ExcludeFlag TRUE to exclude individual Cumulative items from display.
+
+ @return Status from a call to gBS->LocateHandle().
+**/
+EFI_STATUS
+ProcessHandles(
+ IN BOOLEAN ExcludeFlag
+ );
+
+
+/**
+ Gather and print PEIM data.
+
+ Only prints complete PEIM records
+
+**/
+VOID
+ProcessPeims(
+ VOID
+ );
+
+/**
+ Gather and print global data.
+
+ Strips out incomplete or "Execution Phase" records
+ Only prints records where Handle is NULL
+ Increment TIndex for every record, even skipped ones, so that we have an
+ indication of every measurement record taken.
+
+**/
+VOID
+ProcessGlobal(
+ VOID
+ );
+
+/**
+ Gather and print cumulative data.
+
+ Traverse the measurement records and:<BR>
+ For each record with a Token listed in the CumData array:<BR>
+ - Update the instance count and the total, minimum, and maximum durations.
+ Finally, print the gathered cumulative statistics.
+
+**/
+VOID
+ProcessCumulative(
+ VOID
+ );
+
+/**
+ Gather and print ALL Profiling Records.
+
+ Displays all "interesting" Profile measurements in order.
+ The number of records displayed is controlled by:
+ - records with a duration less than mInterestThreshold microseconds are not displayed.
+ - No more than Limit records are displayed. A Limit of zero will not limit the output.
+ - If the ExcludeFlag is TRUE, records matching entries in the CumData array are not
+ displayed.
+
+ @pre The mInterestThreshold global variable is set to the shortest duration to be printed.
+ The mGaugeString and mUnicodeToken global arrays are used for temporary string storage.
+ They must not be in use by a calling function.
+
+ @param[in] Limit The number of records to print. Zero is ALL.
+ @param[in] ExcludeFlag TRUE to exclude individual Cumulative items from display.
+
+**/
+VOID
+DumpAllProfile(
+ IN UINTN Limit,
+ IN BOOLEAN ExcludeFlag
+ );
+
+/**
+ Gather and print Raw Profile Records.
+
+ All Profile measurements with a duration greater than or equal to
+ mInterestThreshold are printed without interpretation.
+
+ The number of records displayed is controlled by:
+ - records with a duration less than mInterestThreshold microseconds are not displayed.
+ - No more than Limit records are displayed. A Limit of zero will not limit the output.
+ - If the ExcludeFlag is TRUE, records matching entries in the CumData array are not
+ displayed.
+
+ @pre The mInterestThreshold global variable is set to the shortest duration to be printed.
+
+ @param[in] Limit The number of records to print. Zero is ALL.
+ @param[in] ExcludeFlag TRUE to exclude individual Cumulative items from display.
+
+**/
+VOID
+DumpRawProfile(
+ IN UINTN Limit,
+ IN BOOLEAN ExcludeFlag
+ );
+
+#endif