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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 2015-2016 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   @retval EFI_SUCCESS           The operation was successful.
202   @retval EFI_ABORTED           The user aborts the operation.
203   @return Others                from a call to gBS->LocateHandleBuffer().
204 **/
205 EFI_STATUS
206 DumpAllTrace(
207   IN UINTN             Limit,
208   IN BOOLEAN           ExcludeFlag
209   );
210 
211 /**
212   Gather and print Raw Trace Records.
213 
214   All Trace measurements with a duration greater than or equal to
215   mInterestThreshold are printed without interpretation.
216 
217   The number of records displayed is controlled by:
218      - records with a duration less than mInterestThreshold microseconds are not displayed.
219      - No more than Limit records are displayed.  A Limit of zero will not limit the output.
220      - If the ExcludeFlag is TRUE, records matching entries in the CumData array are not
221        displayed.
222 
223   @pre    The mInterestThreshold global variable is set to the shortest duration to be printed.
224 
225   @param[in]    Limit       The number of records to print.  Zero is ALL.
226   @param[in]    ExcludeFlag TRUE to exclude individual Cumulative items from display.
227   @retval EFI_SUCCESS           The operation was successful.
228   @retval EFI_ABORTED           The user aborts the operation.
229 **/
230 EFI_STATUS
231 DumpRawTrace(
232   IN UINTN          Limit,
233   IN BOOLEAN        ExcludeFlag
234   );
235 
236 /**
237   Gather and print Major Phase metrics.
238 
239   @param[in]    Ticker      The timer value for the END of Shell phase
240 
241 **/
242 VOID
243 ProcessPhases(
244   IN UINT64 Ticker
245   );
246 
247 
248 /**
249   Gather and print Handle data.
250 
251   @param[in]    ExcludeFlag   TRUE to exclude individual Cumulative items from display.
252 
253   @retval EFI_SUCCESS             The operation was successful.
254   @retval EFI_ABORTED             The user aborts the operation.
255   @return Others                  from a call to gBS->LocateHandleBuffer().
256 **/
257 EFI_STATUS
258 ProcessHandles(
259   IN BOOLEAN ExcludeFlag
260   );
261 
262 
263 /**
264   Gather and print PEIM data.
265 
266   Only prints complete PEIM records
267 
268   @retval EFI_SUCCESS           The operation was successful.
269   @retval EFI_ABORTED           The user aborts the operation.
270 **/
271 EFI_STATUS
272 ProcessPeims(
273   VOID
274   );
275 
276 /**
277   Gather and print global data.
278 
279   Strips out incomplete or "Execution Phase" records
280   Only prints records where Handle is NULL
281   Increment TIndex for every record, even skipped ones, so that we have an
282   indication of every measurement record taken.
283 
284   @retval EFI_SUCCESS           The operation was successful.
285   @retval EFI_ABORTED           The user aborts the operation.
286 **/
287 EFI_STATUS
288 ProcessGlobal(
289   VOID
290   );
291 
292 /**
293   Gather and print cumulative data.
294 
295   Traverse the measurement records and:<BR>
296   For each record with a Token listed in the CumData array:<BR>
297      - Update the instance count and the total, minimum, and maximum durations.
298   Finally, print the gathered cumulative statistics.
299 
300   @param[in]    CustomCumulativeData  The pointer to the custom cumulative data.
301 
302 **/
303 VOID
304 ProcessCumulative(
305   IN PERF_CUM_DATA                  *CustomCumulativeData OPTIONAL
306   );
307 
308 /**
309   Gather and print ALL Profiling Records.
310 
311   Displays all "interesting" Profile measurements in order.
312   The number of records displayed is controlled by:
313      - records with a duration less than mInterestThreshold microseconds are not displayed.
314      - No more than Limit records are displayed.  A Limit of zero will not limit the output.
315      - If the ExcludeFlag is TRUE, records matching entries in the CumData array are not
316        displayed.
317 
318   @pre    The mInterestThreshold global variable is set to the shortest duration to be printed.
319            The mGaugeString and mUnicodeToken global arrays are used for temporary string storage.
320            They must not be in use by a calling function.
321 
322   @param[in]    Limit         The number of records to print.  Zero is ALL.
323   @param[in]    ExcludeFlag   TRUE to exclude individual Cumulative items from display.
324 
325 **/
326 VOID
327 DumpAllProfile(
328   IN UINTN          Limit,
329   IN BOOLEAN        ExcludeFlag
330   );
331 
332 /**
333   Gather and print Raw Profile Records.
334 
335   All Profile measurements with a duration greater than or equal to
336   mInterestThreshold are printed without interpretation.
337 
338   The number of records displayed is controlled by:
339      - records with a duration less than mInterestThreshold microseconds are not displayed.
340      - No more than Limit records are displayed.  A Limit of zero will not limit the output.
341      - If the ExcludeFlag is TRUE, records matching entries in the CumData array are not
342        displayed.
343 
344   @pre    The mInterestThreshold global variable is set to the shortest duration to be printed.
345 
346   @param[in]    Limit         The number of records to print.  Zero is ALL.
347   @param[in]    ExcludeFlag   TRUE to exclude individual Cumulative items from display.
348 
349 **/
350 VOID
351 DumpRawProfile(
352   IN UINTN          Limit,
353   IN BOOLEAN        ExcludeFlag
354   );
355 
356 #endif
357