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      1 /** @file
      2   Declarations of objects defined internally to the Dp Application.
      3 
      4   Declarations of data and functions which are private to the Dp application.
      5   This file should never be referenced by anything other than components of the
      6   Dp application.  In addition to global data, function declarations for
      7   DpUtilities.c, DpTrace.c, and DpProfile.c are included here.
      8 
      9   Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved.
     10   (C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>
     11   This program and the accompanying materials
     12   are licensed and made available under the terms and conditions of the BSD License
     13   which accompanies this distribution.  The full text of the license may be found at
     14   http://opensource.org/licenses/bsd-license.php
     15 
     16   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     17   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     18 **/
     19 #ifndef _DP_INTELNAL_H_
     20 #define _DP_INTELNAL_H_
     21 
     22 #define DP_GAUGE_STRING_LENGTH   36
     23 
     24 //
     25 /// Module-Global Variables
     26 ///@{
     27 extern EFI_HII_HANDLE     gDpHiiHandle;
     28 extern CHAR16             mGaugeString[DP_GAUGE_STRING_LENGTH + 1];
     29 extern CHAR16             mUnicodeToken[DXE_PERFORMANCE_STRING_SIZE];
     30 extern UINT64             mInterestThreshold;
     31 extern BOOLEAN            mShowId;
     32 
     33 extern PERF_SUMMARY_DATA  SummaryData;    ///< Create the SummaryData structure and init. to ZERO.
     34 
     35 /// Timer Specific Information.
     36 extern TIMER_INFO         TimerInfo;
     37 
     38 /// Items for which to gather cumulative statistics.
     39 extern PERF_CUM_DATA      CumData[];
     40 
     41 /// Number of items for which we are gathering cumulative statistics.
     42 extern UINT32 const       NumCum;
     43 
     44 ///@}
     45 
     46 /**
     47   Calculate an event's duration in timer ticks.
     48 
     49   Given the count direction and the event's start and end timer values,
     50   calculate the duration of the event in timer ticks.  Information for
     51   the current measurement is pointed to by the parameter.
     52 
     53   If the measurement's start time is 1, it indicates that the developer
     54   is indicating that the measurement began at the release of reset.
     55   The start time is adjusted to the timer's starting count before performing
     56   the elapsed time calculation.
     57 
     58   The calculated duration, in ticks, is the absolute difference between
     59   the measurement's ending and starting counts.
     60 
     61   @param Measurement   Pointer to a MEASUREMENT_RECORD structure containing
     62                        data for the current measurement.
     63 
     64   @return              The 64-bit duration of the event.
     65 **/
     66 UINT64
     67 GetDuration (
     68   IN OUT MEASUREMENT_RECORD *Measurement
     69   );
     70 
     71 /**
     72   Determine whether the Measurement record is for an EFI Phase.
     73 
     74   The Token and Module members of the measurement record are checked.
     75   Module must be empty and Token must be one of SEC, PEI, DXE, BDS, or SHELL.
     76 
     77   @param[in]  Measurement A pointer to the Measurement record to test.
     78 
     79   @retval     TRUE        The measurement record is for an EFI Phase.
     80   @retval     FALSE       The measurement record is NOT for an EFI Phase.
     81 **/
     82 BOOLEAN
     83 IsPhase(
     84   IN MEASUREMENT_RECORD *Measurement
     85   );
     86 
     87 /**
     88   Get the file name portion of the Pdb File Name.
     89 
     90   The portion of the Pdb File Name between the last backslash and
     91   either a following period or the end of the string is converted
     92   to Unicode and copied into UnicodeBuffer.  The name is truncated,
     93   if necessary, to ensure that UnicodeBuffer is not overrun.
     94 
     95   @param[in]  PdbFileName     Pdb file name.
     96   @param[out] UnicodeBuffer   The resultant Unicode File Name.
     97 
     98 **/
     99 VOID
    100 DpGetShortPdbFileName (
    101   IN  CHAR8     *PdbFileName,
    102   OUT CHAR16    *UnicodeBuffer
    103   );
    104 
    105 /**
    106   Get a human readable name for an image handle.
    107   The following methods will be tried orderly:
    108     1. Image PDB
    109     2. ComponentName2 protocol
    110     3. FFS UI section
    111     4. Image GUID
    112     5. Image DevicePath
    113     6. Unknown Driver Name
    114 
    115   @param[in]    Handle
    116 
    117   @post   The resulting Unicode name string is stored in the
    118           mGaugeString global array.
    119 
    120 **/
    121 VOID
    122 DpGetNameFromHandle (
    123   IN EFI_HANDLE Handle
    124   );
    125 
    126 /**
    127   Calculate the Duration in microseconds.
    128 
    129   Duration is multiplied by 1000, instead of Frequency being divided by 1000 or
    130   multiplying the result by 1000, in order to maintain precision.  Since Duration is
    131   a 64-bit value, multiplying it by 1000 is unlikely to produce an overflow.
    132 
    133   The time is calculated as (Duration * 1000) / Timer_Frequency.
    134 
    135   @param[in]  Duration   The event duration in timer ticks.
    136 
    137   @return     A 64-bit value which is the Elapsed time in microseconds.
    138 **/
    139 UINT64
    140 DurationInMicroSeconds (
    141   IN UINT64 Duration
    142   );
    143 
    144 /**
    145   Get index of Measurement Record's match in the CumData array.
    146 
    147   If the Measurement's Token value matches a Token in one of the CumData
    148   records, the index of the matching record is returned.  The returned
    149   index is a signed value so that negative values can indicate that
    150   the Measurement didn't match any entry in the CumData array.
    151 
    152   @param[in]  Measurement A pointer to a Measurement Record to match against the CumData array.
    153 
    154   @retval     <0    Token is not in the CumData array.
    155   @retval     >=0   Return value is the index into CumData where Token is found.
    156 **/
    157 INTN
    158 GetCumulativeItem(
    159   IN MEASUREMENT_RECORD *Measurement
    160   );
    161 
    162 /**
    163   Collect verbose statistics about the logged performance measurements.
    164 
    165   General Summary information for all Trace measurements is gathered and
    166   stored within the SummaryData structure.  This information is both
    167   used internally by subsequent reporting functions, and displayed
    168   at the end of verbose reports.
    169 
    170   @pre  The SummaryData and CumData structures must be initialized
    171         prior to calling this function.
    172 
    173   @post The SummaryData and CumData structures contain statistics for the
    174         current performance logs.
    175 
    176   @param[in, out] CustomCumulativeData  The pointer to the custom cumulative data.
    177 
    178 **/
    179 VOID
    180 GatherStatistics(
    181   IN OUT PERF_CUM_DATA              *CustomCumulativeData OPTIONAL
    182   );
    183 
    184 /**
    185   Gather and print ALL Trace Records.
    186 
    187   Displays all "interesting" Trace measurements in order.<BR>
    188   The number of records displayed is controlled by:
    189      - records with a duration less than mInterestThreshold microseconds are not displayed.
    190      - No more than Limit records are displayed.  A Limit of zero will not limit the output.
    191      - If the ExcludeFlag is TRUE, records matching entries in the CumData array are not
    192        displayed.
    193 
    194   @pre    The mInterestThreshold global variable is set to the shortest duration to be printed.
    195            The mGaugeString and mUnicodeToken global arrays are used for temporary string storage.
    196            They must not be in use by a calling function.
    197 
    198   @param[in]    Limit       The number of records to print.  Zero is ALL.
    199   @param[in]    ExcludeFlag TRUE to exclude individual Cumulative items from display.
    200 
    201 **/
    202 VOID
    203 DumpAllTrace(
    204   IN UINTN             Limit,
    205   IN BOOLEAN           ExcludeFlag
    206   );
    207 
    208 /**
    209   Gather and print Raw Trace Records.
    210 
    211   All Trace measurements with a duration greater than or equal to
    212   mInterestThreshold are printed without interpretation.
    213 
    214   The number of records displayed is controlled by:
    215      - records with a duration less than mInterestThreshold microseconds are not displayed.
    216      - No more than Limit records are displayed.  A Limit of zero will not limit the output.
    217      - If the ExcludeFlag is TRUE, records matching entries in the CumData array are not
    218        displayed.
    219 
    220   @pre    The mInterestThreshold global variable is set to the shortest duration to be printed.
    221 
    222   @param[in]    Limit       The number of records to print.  Zero is ALL.
    223   @param[in]    ExcludeFlag TRUE to exclude individual Cumulative items from display.
    224 
    225 **/
    226 VOID
    227 DumpRawTrace(
    228   IN UINTN          Limit,
    229   IN BOOLEAN        ExcludeFlag
    230   );
    231 
    232 /**
    233   Gather and print Major Phase metrics.
    234 
    235   @param[in]    Ticker      The timer value for the END of Shell phase
    236 
    237 **/
    238 VOID
    239 ProcessPhases(
    240   IN UINT64 Ticker
    241   );
    242 
    243 
    244 /**
    245   Gather and print Handle data.
    246 
    247   @param[in]    ExcludeFlag   TRUE to exclude individual Cumulative items from display.
    248 
    249   @return       Status from a call to gBS->LocateHandle().
    250 **/
    251 EFI_STATUS
    252 ProcessHandles(
    253   IN BOOLEAN ExcludeFlag
    254   );
    255 
    256 
    257 /**
    258   Gather and print PEIM data.
    259 
    260   Only prints complete PEIM records
    261 
    262 **/
    263 VOID
    264 ProcessPeims(
    265   VOID
    266   );
    267 
    268 /**
    269   Gather and print global data.
    270 
    271   Strips out incomplete or "Execution Phase" records
    272   Only prints records where Handle is NULL
    273   Increment TIndex for every record, even skipped ones, so that we have an
    274   indication of every measurement record taken.
    275 
    276 **/
    277 VOID
    278 ProcessGlobal(
    279   VOID
    280   );
    281 
    282 /**
    283   Gather and print cumulative data.
    284 
    285   Traverse the measurement records and:<BR>
    286   For each record with a Token listed in the CumData array:<BR>
    287      - Update the instance count and the total, minimum, and maximum durations.
    288   Finally, print the gathered cumulative statistics.
    289 
    290   @param[in]    CustomCumulativeData  The pointer to the custom cumulative data.
    291 
    292 **/
    293 VOID
    294 ProcessCumulative(
    295   IN PERF_CUM_DATA                  *CustomCumulativeData OPTIONAL
    296   );
    297 
    298 /**
    299   Gather and print ALL Profiling Records.
    300 
    301   Displays all "interesting" Profile measurements in order.
    302   The number of records displayed is controlled by:
    303      - records with a duration less than mInterestThreshold microseconds are not displayed.
    304      - No more than Limit records are displayed.  A Limit of zero will not limit the output.
    305      - If the ExcludeFlag is TRUE, records matching entries in the CumData array are not
    306        displayed.
    307 
    308   @pre    The mInterestThreshold global variable is set to the shortest duration to be printed.
    309            The mGaugeString and mUnicodeToken global arrays are used for temporary string storage.
    310            They must not be in use by a calling function.
    311 
    312   @param[in]    Limit         The number of records to print.  Zero is ALL.
    313   @param[in]    ExcludeFlag   TRUE to exclude individual Cumulative items from display.
    314 
    315 **/
    316 VOID
    317 DumpAllProfile(
    318   IN UINTN          Limit,
    319   IN BOOLEAN        ExcludeFlag
    320   );
    321 
    322 /**
    323   Gather and print Raw Profile Records.
    324 
    325   All Profile measurements with a duration greater than or equal to
    326   mInterestThreshold are printed without interpretation.
    327 
    328   The number of records displayed is controlled by:
    329      - records with a duration less than mInterestThreshold microseconds are not displayed.
    330      - No more than Limit records are displayed.  A Limit of zero will not limit the output.
    331      - If the ExcludeFlag is TRUE, records matching entries in the CumData array are not
    332        displayed.
    333 
    334   @pre    The mInterestThreshold global variable is set to the shortest duration to be printed.
    335 
    336   @param[in]    Limit         The number of records to print.  Zero is ALL.
    337   @param[in]    ExcludeFlag   TRUE to exclude individual Cumulative items from display.
    338 
    339 **/
    340 VOID
    341 DumpRawProfile(
    342   IN UINTN          Limit,
    343   IN BOOLEAN        ExcludeFlag
    344   );
    345 
    346 #endif
    347