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 - 2014, Intel Corporation. All rights reserved.<BR>
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     gHiiHandle;
28 extern CHAR16             *mPrintTokenBuffer;
29 extern CHAR16             mGaugeString[DP_GAUGE_STRING_LENGTH + 1];
30 extern CHAR16             mUnicodeToken[DXE_PERFORMANCE_STRING_SIZE];
31 extern UINT64             mInterestThreshold;
32 extern BOOLEAN            mShowId;
33 
34 extern PERF_SUMMARY_DATA  SummaryData;    ///< Create the SummaryData structure and init. to ZERO.
35 
36 /// Timer Specific Information.
37 extern TIMER_INFO         TimerInfo;
38 
39 /// Items for which to gather cumulative statistics.
40 extern PERF_CUM_DATA      CumData[];
41 
42 /// Number of items for which we are gathering cumulative statistics.
43 extern UINT32 const       NumCum;
44 
45 ///@}
46 
47 /**
48   Calculate an event's duration in timer ticks.
49 
50   Given the count direction and the event's start and end timer values,
51   calculate the duration of the event in timer ticks.  Information for
52   the current measurement is pointed to by the parameter.
53 
54   If the measurement's start time is 1, it indicates that the developer
55   is indicating that the measurement began at the release of reset.
56   The start time is adjusted to the timer's starting count before performing
57   the elapsed time calculation.
58 
59   The calculated duration, in ticks, is the absolute difference between
60   the measurement's ending and starting counts.
61 
62   @param Measurement   Pointer to a MEASUREMENT_RECORD structure containing
63                        data for the current measurement.
64 
65   @return              The 64-bit duration of the event.
66 **/
67 UINT64
68 GetDuration (
69   IN OUT MEASUREMENT_RECORD *Measurement
70   );
71 
72 /**
73   Determine whether the Measurement record is for an EFI Phase.
74 
75   The Token and Module members of the measurement record are checked.
76   Module must be empty and Token must be one of SEC, PEI, DXE, BDS, or SHELL.
77 
78   @param[in]  Measurement A pointer to the Measurement record to test.
79 
80   @retval     TRUE        The measurement record is for an EFI Phase.
81   @retval     FALSE       The measurement record is NOT for an EFI Phase.
82 **/
83 BOOLEAN
84 IsPhase(
85   IN MEASUREMENT_RECORD *Measurement
86   );
87 
88 /**
89   Get the file name portion of the Pdb File Name.
90 
91   The portion of the Pdb File Name between the last backslash and
92   either a following period or the end of the string is converted
93   to Unicode and copied into UnicodeBuffer.  The name is truncated,
94   if necessary, to ensure that UnicodeBuffer is not overrun.
95 
96   @param[in]  PdbFileName     Pdb file name.
97   @param[out] UnicodeBuffer   The resultant Unicode File Name.
98 
99 **/
100 VOID
101 GetShortPdbFileName (
102   IN  CHAR8     *PdbFileName,
103   OUT CHAR16    *UnicodeBuffer
104   );
105 
106 /**
107   Get a human readable name for an image handle.
108   The following methods will be tried orderly:
109     1. Image PDB
110     2. ComponentName2 protocol
111     3. FFS UI section
112     4. Image GUID
113     5. Image DevicePath
114     6. Unknown Driver Name
115 
116   @param[in]    Handle
117 
118   @post   The resulting Unicode name string is stored in the
119           mGaugeString global array.
120 
121 **/
122 VOID
123 GetNameFromHandle (
124   IN EFI_HANDLE Handle
125   );
126 
127 /**
128   Calculate the Duration in microseconds.
129 
130   Duration is multiplied by 1000, instead of Frequency being divided by 1000 or
131   multiplying the result by 1000, in order to maintain precision.  Since Duration is
132   a 64-bit value, multiplying it by 1000 is unlikely to produce an overflow.
133 
134   The time is calculated as (Duration * 1000) / Timer_Frequency.
135 
136   @param[in]  Duration   The event duration in timer ticks.
137 
138   @return     A 64-bit value which is the Elapsed time in microseconds.
139 **/
140 UINT64
141 DurationInMicroSeconds (
142   IN UINT64 Duration
143   );
144 
145 /**
146   Formatted Print using a Hii Token to reference the localized format string.
147 
148   @param[in]  Token   A HII token associated with a localized Unicode string.
149   @param[in]  ...     The variable argument list.
150 
151   @return             The number of characters converted by UnicodeVSPrint().
152 
153 **/
154 UINTN
155 EFIAPI
156 PrintToken (
157   IN UINT16 Token,
158   ...
159   );
160 
161 /**
162   Get index of Measurement Record's match in the CumData array.
163 
164   If the Measurement's Token value matches a Token in one of the CumData
165   records, the index of the matching record is returned.  The returned
166   index is a signed value so that negative values can indicate that
167   the Measurement didn't match any entry in the CumData array.
168 
169   @param[in]  Measurement A pointer to a Measurement Record to match against the CumData array.
170 
171   @retval     <0    Token is not in the CumData array.
172   @retval     >=0   Return value is the index into CumData where Token is found.
173 **/
174 INTN
175 GetCumulativeItem(
176   IN MEASUREMENT_RECORD *Measurement
177   );
178 
179 /**
180   Collect verbose statistics about the logged performance measurements.
181 
182   General Summary information for all Trace measurements is gathered and
183   stored within the SummaryData structure.  This information is both
184   used internally by subsequent reporting functions, and displayed
185   at the end of verbose reports.
186 
187   @pre  The SummaryData and CumData structures must be initialized
188         prior to calling this function.
189 
190   @post The SummaryData and CumData structures contain statistics for the
191         current performance logs.
192 
193   @param[in, out] CustomCumulativeData  The pointer to the custom cumulative data.
194 
195 **/
196 VOID
197 GatherStatistics(
198   IN OUT PERF_CUM_DATA              *CustomCumulativeData OPTIONAL
199   );
200 
201 /**
202   Gather and print ALL Trace Records.
203 
204   Displays all "interesting" Trace measurements in order.<BR>
205   The number of records displayed is controlled by:
206      - records with a duration less than mInterestThreshold microseconds are not displayed.
207      - No more than Limit records are displayed.  A Limit of zero will not limit the output.
208      - If the ExcludeFlag is TRUE, records matching entries in the CumData array are not
209        displayed.
210 
211   @pre    The mInterestThreshold global variable is set to the shortest duration to be printed.
212            The mGaugeString and mUnicodeToken global arrays are used for temporary string storage.
213            They must not be in use by a calling function.
214 
215   @param[in]    Limit       The number of records to print.  Zero is ALL.
216   @param[in]    ExcludeFlag TRUE to exclude individual Cumulative items from display.
217 
218 **/
219 VOID
220 DumpAllTrace(
221   IN UINTN             Limit,
222   IN BOOLEAN           ExcludeFlag
223   );
224 
225 /**
226   Gather and print Raw Trace Records.
227 
228   All Trace measurements with a duration greater than or equal to
229   mInterestThreshold are printed without interpretation.
230 
231   The number of records displayed is controlled by:
232      - records with a duration less than mInterestThreshold microseconds are not displayed.
233      - No more than Limit records are displayed.  A Limit of zero will not limit the output.
234      - If the ExcludeFlag is TRUE, records matching entries in the CumData array are not
235        displayed.
236 
237   @pre    The mInterestThreshold global variable is set to the shortest duration to be printed.
238 
239   @param[in]    Limit       The number of records to print.  Zero is ALL.
240   @param[in]    ExcludeFlag TRUE to exclude individual Cumulative items from display.
241 
242 **/
243 VOID
244 DumpRawTrace(
245   IN UINTN          Limit,
246   IN BOOLEAN        ExcludeFlag
247   );
248 
249 /**
250   Gather and print Major Phase metrics.
251 
252   @param[in]    Ticker      The timer value for the END of Shell phase
253 
254 **/
255 VOID
256 ProcessPhases(
257   IN UINT64 Ticker
258   );
259 
260 
261 /**
262   Gather and print Handle data.
263 
264   @param[in]    ExcludeFlag   TRUE to exclude individual Cumulative items from display.
265 
266   @return       Status from a call to gBS->LocateHandle().
267 **/
268 EFI_STATUS
269 ProcessHandles(
270   IN BOOLEAN ExcludeFlag
271   );
272 
273 
274 /**
275   Gather and print PEIM data.
276 
277   Only prints complete PEIM records
278 
279 **/
280 VOID
281 ProcessPeims(
282   VOID
283   );
284 
285 /**
286   Gather and print global data.
287 
288   Strips out incomplete or "Execution Phase" records
289   Only prints records where Handle is NULL
290   Increment TIndex for every record, even skipped ones, so that we have an
291   indication of every measurement record taken.
292 
293 **/
294 VOID
295 ProcessGlobal(
296   VOID
297   );
298 
299 /**
300   Gather and print cumulative data.
301 
302   Traverse the measurement records and:<BR>
303   For each record with a Token listed in the CumData array:<BR>
304      - Update the instance count and the total, minimum, and maximum durations.
305   Finally, print the gathered cumulative statistics.
306 
307   @param[in]    CustomCumulativeData  The pointer to the custom cumulative data.
308 
309 **/
310 VOID
311 ProcessCumulative(
312   IN PERF_CUM_DATA                  *CustomCumulativeData OPTIONAL
313   );
314 
315 /**
316   Gather and print ALL Profiling Records.
317 
318   Displays all "interesting" Profile measurements in order.
319   The number of records displayed is controlled by:
320      - records with a duration less than mInterestThreshold microseconds are not displayed.
321      - No more than Limit records are displayed.  A Limit of zero will not limit the output.
322      - If the ExcludeFlag is TRUE, records matching entries in the CumData array are not
323        displayed.
324 
325   @pre    The mInterestThreshold global variable is set to the shortest duration to be printed.
326            The mGaugeString and mUnicodeToken global arrays are used for temporary string storage.
327            They must not be in use by a calling function.
328 
329   @param[in]    Limit         The number of records to print.  Zero is ALL.
330   @param[in]    ExcludeFlag   TRUE to exclude individual Cumulative items from display.
331 
332 **/
333 VOID
334 DumpAllProfile(
335   IN UINTN          Limit,
336   IN BOOLEAN        ExcludeFlag
337   );
338 
339 /**
340   Gather and print Raw Profile Records.
341 
342   All Profile measurements with a duration greater than or equal to
343   mInterestThreshold are printed without interpretation.
344 
345   The number of records displayed is controlled by:
346      - records with a duration less than mInterestThreshold microseconds are not displayed.
347      - No more than Limit records are displayed.  A Limit of zero will not limit the output.
348      - If the ExcludeFlag is TRUE, records matching entries in the CumData array are not
349        displayed.
350 
351   @pre    The mInterestThreshold global variable is set to the shortest duration to be printed.
352 
353   @param[in]    Limit         The number of records to print.  Zero is ALL.
354   @param[in]    ExcludeFlag   TRUE to exclude individual Cumulative items from display.
355 
356 **/
357 VOID
358 DumpRawProfile(
359   IN UINTN          Limit,
360   IN BOOLEAN        ExcludeFlag
361   );
362 
363 /**
364   Wrap original FreePool to check NULL pointer first.
365 
366   @param[in]    Buffer      The pointer to the buffer to free.
367 
368 **/
369 VOID
370 SafeFreePool (
371   IN VOID   *Buffer
372   );
373 
374 #endif
375