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8dbae30d | 1 | /** @file\r |
857dfc45 | 2 | Performance library instance mainly used by DxeCore.\r |
3 | \r | |
4 | This library provides the performance measurement interfaces and initializes performance\r | |
5 | logging for DXE phase. It first initializes its private global data structure for\r | |
6 | performance logging and saves the performance GUIDed HOB passed from PEI phase. \r | |
f0da4d7d SZ |
7 | It initializes DXE phase performance logging by publishing the Performance and PerformanceEx Protocol,\r |
8 | which are consumed by DxePerformanceLib to logging performance data in DXE phase.\r | |
857dfc45 | 9 | \r |
10 | This library is mainly used by DxeCore to start performance logging to ensure that\r | |
11 | Performance Protocol is installed at the very beginning of DXE phase.\r | |
a0afd019 | 12 | \r |
96f983fa | 13 | Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>\r |
7c50b343 | 14 | (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>\r |
cd5ebaa0 | 15 | This program and the accompanying materials\r |
a0afd019 | 16 | are licensed and made available under the terms and conditions of the BSD License\r |
17 | which accompanies this distribution. The full text of the license may be found at\r | |
18 | http://opensource.org/licenses/bsd-license.php\r | |
19 | \r | |
20 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
21 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
22 | \r | |
8dbae30d | 23 | **/\r |
a0afd019 | 24 | \r |
ed7748fe | 25 | \r |
aa79b0b3 | 26 | #include "DxeCorePerformanceLibInternal.h"\r |
ed7748fe | 27 | \r |
a0afd019 | 28 | \r |
29 | //\r | |
857dfc45 | 30 | // The data structure to hold global performance data.\r |
a0afd019 | 31 | //\r |
fe1e36e5 | 32 | GAUGE_DATA_HEADER *mGaugeData;\r |
857dfc45 | 33 | \r |
34 | //\r | |
35 | // The current maximum number of logging entries. If current number of \r | |
36 | // entries exceeds this value, it will re-allocate a larger array and\r | |
37 | // migration the old data to the larger array.\r | |
38 | //\r | |
fe1e36e5 | 39 | UINT32 mMaxGaugeRecords;\r |
a0afd019 | 40 | \r |
857dfc45 | 41 | //\r |
42 | // The handle to install Performance Protocol instance.\r | |
43 | //\r | |
a0afd019 | 44 | EFI_HANDLE mHandle = NULL;\r |
857dfc45 | 45 | \r |
46 | //\r | |
f0da4d7d | 47 | // Interfaces for Performance Protocol.\r |
857dfc45 | 48 | //\r |
a0afd019 | 49 | PERFORMANCE_PROTOCOL mPerformanceInterface = {\r |
50 | StartGauge,\r | |
51 | EndGauge,\r | |
52 | GetGauge\r | |
53 | };\r | |
54 | \r | |
f0da4d7d SZ |
55 | //\r |
56 | // Interfaces for PerformanceEx Protocol.\r | |
57 | //\r | |
58 | PERFORMANCE_EX_PROTOCOL mPerformanceExInterface = {\r | |
59 | StartGaugeEx,\r | |
60 | EndGaugeEx,\r | |
61 | GetGaugeEx\r | |
62 | };\r | |
63 | \r | |
a0afd019 | 64 | /**\r |
f0da4d7d | 65 | Searches in the gauge array with keyword Handle, Token, Module and Identifier.\r |
a0afd019 | 66 | \r |
67 | This internal function searches for the gauge entry in the gauge array.\r | |
f0da4d7d | 68 | If there is an entry that exactly matches the given keywords\r |
a0afd019 | 69 | and its end time stamp is zero, then the index of that gauge entry is returned;\r |
70 | otherwise, the the number of gauge entries in the array is returned.\r | |
71 | \r | |
72 | @param Handle Pointer to environment specific context used\r | |
73 | to identify the component being measured.\r | |
74 | @param Token Pointer to a Null-terminated ASCII string\r | |
75 | that identifies the component being measured.\r | |
76 | @param Module Pointer to a Null-terminated ASCII string\r | |
77 | that identifies the module being measured.\r | |
f0da4d7d | 78 | @param Identifier 32-bit identifier.\r |
a0afd019 | 79 | \r |
80 | @retval The index of gauge entry in the array.\r | |
81 | \r | |
82 | **/\r | |
a0afd019 | 83 | UINT32\r |
84 | InternalSearchForGaugeEntry (\r | |
85 | IN CONST VOID *Handle, OPTIONAL\r | |
86 | IN CONST CHAR8 *Token, OPTIONAL\r | |
f0da4d7d SZ |
87 | IN CONST CHAR8 *Module, OPTIONAL\r |
88 | IN UINT32 Identifier\r | |
a0afd019 | 89 | )\r |
90 | {\r | |
91 | UINT32 Index;\r | |
b504f519 | 92 | UINT32 Index2;\r |
a0afd019 | 93 | UINT32 NumberOfEntries;\r |
f0da4d7d | 94 | GAUGE_DATA_ENTRY_EX *GaugeEntryExArray;\r |
a0afd019 | 95 | \r |
96 | if (Token == NULL) {\r | |
97 | Token = "";\r | |
98 | }\r | |
99 | if (Module == NULL) {\r | |
100 | Module = "";\r | |
101 | }\r | |
102 | \r | |
103 | NumberOfEntries = mGaugeData->NumberOfEntries;\r | |
f0da4d7d | 104 | GaugeEntryExArray = (GAUGE_DATA_ENTRY_EX *) (mGaugeData + 1);\r |
a0afd019 | 105 | \r |
b504f519 SZ |
106 | Index2 = 0;\r |
107 | \r | |
a0afd019 | 108 | for (Index = 0; Index < NumberOfEntries; Index++) {\r |
b504f519 SZ |
109 | Index2 = NumberOfEntries - 1 - Index;\r |
110 | if (GaugeEntryExArray[Index2].EndTimeStamp == 0 &&\r | |
111 | (GaugeEntryExArray[Index2].Handle == (EFI_PHYSICAL_ADDRESS) (UINTN) Handle) &&\r | |
112 | AsciiStrnCmp (GaugeEntryExArray[Index2].Token, Token, DXE_PERFORMANCE_STRING_LENGTH) == 0 &&\r | |
113 | AsciiStrnCmp (GaugeEntryExArray[Index2].Module, Module, DXE_PERFORMANCE_STRING_LENGTH) == 0 &&\r | |
114 | (GaugeEntryExArray[Index2].Identifier == Identifier)) {\r | |
115 | Index = Index2;\r | |
a0afd019 | 116 | break;\r |
117 | }\r | |
118 | }\r | |
119 | \r | |
120 | return Index;\r | |
121 | }\r | |
122 | \r | |
123 | /**\r | |
124 | Adds a record at the end of the performance measurement log\r | |
125 | that records the start time of a performance measurement.\r | |
126 | \r | |
127 | Adds a record to the end of the performance measurement log\r | |
f0da4d7d | 128 | that contains the Handle, Token, Module and Identifier.\r |
a0afd019 | 129 | The end time of the new record must be set to zero.\r |
130 | If TimeStamp is not zero, then TimeStamp is used to fill in the start time in the record.\r | |
131 | If TimeStamp is zero, the start time in the record is filled in with the value\r | |
132 | read from the current time stamp.\r | |
133 | \r | |
134 | @param Handle Pointer to environment specific context used\r | |
135 | to identify the component being measured.\r | |
136 | @param Token Pointer to a Null-terminated ASCII string\r | |
137 | that identifies the component being measured.\r | |
138 | @param Module Pointer to a Null-terminated ASCII string\r | |
139 | that identifies the module being measured.\r | |
140 | @param TimeStamp 64-bit time stamp.\r | |
f0da4d7d SZ |
141 | @param Identifier 32-bit identifier. If the value is 0, the created record\r |
142 | is same as the one created by StartGauge of PERFORMANCE_PROTOCOL.\r | |
a0afd019 | 143 | \r |
144 | @retval EFI_SUCCESS The data was read correctly from the device.\r | |
145 | @retval EFI_OUT_OF_RESOURCES There are not enough resources to record the measurement.\r | |
146 | \r | |
147 | **/\r | |
a0afd019 | 148 | EFI_STATUS\r |
149 | EFIAPI\r | |
f0da4d7d | 150 | StartGaugeEx (\r |
a0afd019 | 151 | IN CONST VOID *Handle, OPTIONAL\r |
152 | IN CONST CHAR8 *Token, OPTIONAL\r | |
153 | IN CONST CHAR8 *Module, OPTIONAL\r | |
f0da4d7d SZ |
154 | IN UINT64 TimeStamp,\r |
155 | IN UINT32 Identifier\r | |
a0afd019 | 156 | )\r |
157 | {\r | |
f0da4d7d | 158 | GAUGE_DATA_ENTRY_EX *GaugeEntryExArray;\r |
a0afd019 | 159 | UINTN GaugeDataSize;\r |
f0da4d7d | 160 | GAUGE_DATA_HEADER *NewGaugeData;\r |
a0afd019 | 161 | UINTN OldGaugeDataSize;\r |
162 | GAUGE_DATA_HEADER *OldGaugeData;\r | |
163 | UINT32 Index;\r | |
164 | \r | |
165 | Index = mGaugeData->NumberOfEntries;\r | |
166 | if (Index >= mMaxGaugeRecords) {\r | |
167 | //\r | |
857dfc45 | 168 | // Try to enlarge the scale of gauge array.\r |
a0afd019 | 169 | //\r |
170 | OldGaugeData = mGaugeData;\r | |
f0da4d7d | 171 | OldGaugeDataSize = sizeof (GAUGE_DATA_HEADER) + sizeof (GAUGE_DATA_ENTRY_EX) * mMaxGaugeRecords;\r |
a0afd019 | 172 | \r |
f0da4d7d | 173 | GaugeDataSize = sizeof (GAUGE_DATA_HEADER) + sizeof (GAUGE_DATA_ENTRY_EX) * mMaxGaugeRecords * 2;\r |
a0afd019 | 174 | \r |
f0da4d7d SZ |
175 | NewGaugeData = AllocateZeroPool (GaugeDataSize);\r |
176 | if (NewGaugeData == NULL) {\r | |
a0afd019 | 177 | return EFI_OUT_OF_RESOURCES;\r |
178 | }\r | |
f0da4d7d SZ |
179 | \r |
180 | mGaugeData = NewGaugeData;\r | |
181 | mMaxGaugeRecords *= 2;\r | |
182 | \r | |
a0afd019 | 183 | //\r |
857dfc45 | 184 | // Initialize new data array and migrate old data one.\r |
a0afd019 | 185 | //\r |
186 | mGaugeData = CopyMem (mGaugeData, OldGaugeData, OldGaugeDataSize);\r | |
187 | \r | |
188 | FreePool (OldGaugeData);\r | |
189 | }\r | |
190 | \r | |
f0da4d7d SZ |
191 | GaugeEntryExArray = (GAUGE_DATA_ENTRY_EX *) (mGaugeData + 1);\r |
192 | GaugeEntryExArray[Index].Handle = (EFI_PHYSICAL_ADDRESS) (UINTN) Handle;\r | |
a0afd019 | 193 | \r |
194 | if (Token != NULL) {\r | |
0ec2bfc8 | 195 | AsciiStrnCpyS (GaugeEntryExArray[Index].Token, DXE_PERFORMANCE_STRING_SIZE, Token, DXE_PERFORMANCE_STRING_LENGTH);\r |
a0afd019 | 196 | }\r |
197 | if (Module != NULL) {\r | |
0ec2bfc8 | 198 | AsciiStrnCpyS (GaugeEntryExArray[Index].Module, DXE_PERFORMANCE_STRING_SIZE, Module, DXE_PERFORMANCE_STRING_LENGTH);\r |
a0afd019 | 199 | }\r |
200 | \r | |
f0da4d7d SZ |
201 | GaugeEntryExArray[Index].EndTimeStamp = 0;\r |
202 | GaugeEntryExArray[Index].Identifier = Identifier;\r | |
203 | \r | |
a0afd019 | 204 | if (TimeStamp == 0) {\r |
205 | TimeStamp = GetPerformanceCounter ();\r | |
206 | }\r | |
f0da4d7d | 207 | GaugeEntryExArray[Index].StartTimeStamp = TimeStamp;\r |
a0afd019 | 208 | \r |
209 | mGaugeData->NumberOfEntries++;\r | |
210 | \r | |
211 | return EFI_SUCCESS;\r | |
212 | }\r | |
213 | \r | |
214 | /**\r | |
215 | Searches the performance measurement log from the beginning of the log\r | |
216 | for the first matching record that contains a zero end time and fills in a valid end time.\r | |
217 | \r | |
218 | Searches the performance measurement log from the beginning of the log\r | |
f0da4d7d | 219 | for the first record that matches Handle, Token, Module and Identifier and has an end time value of zero.\r |
a0afd019 | 220 | If the record can not be found then return EFI_NOT_FOUND.\r |
221 | If the record is found and TimeStamp is not zero,\r | |
222 | then the end time in the record is filled in with the value specified by TimeStamp.\r | |
223 | If the record is found and TimeStamp is zero, then the end time in the matching record\r | |
224 | is filled in with the current time stamp value.\r | |
225 | \r | |
226 | @param Handle Pointer to environment specific context used\r | |
227 | to identify the component being measured.\r | |
228 | @param Token Pointer to a Null-terminated ASCII string\r | |
229 | that identifies the component being measured.\r | |
230 | @param Module Pointer to a Null-terminated ASCII string\r | |
231 | that identifies the module being measured.\r | |
232 | @param TimeStamp 64-bit time stamp.\r | |
f0da4d7d SZ |
233 | @param Identifier 32-bit identifier. If the value is 0, the found record\r |
234 | is same as the one found by EndGauge of PERFORMANCE_PROTOCOL.\r | |
a0afd019 | 235 | \r |
236 | @retval EFI_SUCCESS The end of the measurement was recorded.\r | |
237 | @retval EFI_NOT_FOUND The specified measurement record could not be found.\r | |
238 | \r | |
239 | **/\r | |
a0afd019 | 240 | EFI_STATUS\r |
241 | EFIAPI\r | |
f0da4d7d | 242 | EndGaugeEx (\r |
a0afd019 | 243 | IN CONST VOID *Handle, OPTIONAL\r |
244 | IN CONST CHAR8 *Token, OPTIONAL\r | |
245 | IN CONST CHAR8 *Module, OPTIONAL\r | |
f0da4d7d SZ |
246 | IN UINT64 TimeStamp,\r |
247 | IN UINT32 Identifier\r | |
a0afd019 | 248 | )\r |
249 | {\r | |
f0da4d7d SZ |
250 | GAUGE_DATA_ENTRY_EX *GaugeEntryExArray;\r |
251 | UINT32 Index;\r | |
a0afd019 | 252 | \r |
253 | if (TimeStamp == 0) {\r | |
254 | TimeStamp = GetPerformanceCounter ();\r | |
255 | }\r | |
256 | \r | |
f0da4d7d | 257 | Index = InternalSearchForGaugeEntry (Handle, Token, Module, Identifier);\r |
a0afd019 | 258 | if (Index >= mGaugeData->NumberOfEntries) {\r |
259 | return EFI_NOT_FOUND;\r | |
260 | }\r | |
f0da4d7d SZ |
261 | GaugeEntryExArray = (GAUGE_DATA_ENTRY_EX *) (mGaugeData + 1);\r |
262 | GaugeEntryExArray[Index].EndTimeStamp = TimeStamp;\r | |
a0afd019 | 263 | \r |
264 | return EFI_SUCCESS;\r | |
265 | }\r | |
266 | \r | |
267 | /**\r | |
268 | Retrieves a previously logged performance measurement.\r | |
f0da4d7d SZ |
269 | It can also retrieve the log created by StartGauge and EndGauge of PERFORMANCE_PROTOCOL,\r |
270 | and then assign the Identifier with 0.\r | |
a0afd019 | 271 | \r |
272 | Retrieves the performance log entry from the performance log specified by LogEntryKey.\r | |
273 | If it stands for a valid entry, then EFI_SUCCESS is returned and\r | |
f0da4d7d | 274 | GaugeDataEntryEx stores the pointer to that entry.\r |
a0afd019 | 275 | \r |
276 | @param LogEntryKey The key for the previous performance measurement log entry.\r | |
277 | If 0, then the first performance measurement log entry is retrieved.\r | |
f0da4d7d | 278 | @param GaugeDataEntryEx The indirect pointer to the extended gauge data entry specified by LogEntryKey\r |
a0afd019 | 279 | if the retrieval is successful.\r |
280 | \r | |
f0da4d7d | 281 | @retval EFI_SUCCESS The GuageDataEntryEx is successfully found based on LogEntryKey.\r |
a0afd019 | 282 | @retval EFI_NOT_FOUND The LogEntryKey is the last entry (equals to the total entry number).\r |
283 | @retval EFI_INVALIDE_PARAMETER The LogEntryKey is not a valid entry (greater than the total entry number).\r | |
f0da4d7d | 284 | @retval EFI_INVALIDE_PARAMETER GaugeDataEntryEx is NULL.\r |
a0afd019 | 285 | \r |
286 | **/\r | |
a0afd019 | 287 | EFI_STATUS\r |
288 | EFIAPI\r | |
f0da4d7d SZ |
289 | GetGaugeEx (\r |
290 | IN UINTN LogEntryKey,\r | |
291 | OUT GAUGE_DATA_ENTRY_EX **GaugeDataEntryEx\r | |
a0afd019 | 292 | )\r |
293 | {\r | |
294 | UINTN NumberOfEntries;\r | |
f0da4d7d | 295 | GAUGE_DATA_ENTRY_EX *GaugeEntryExArray;\r |
a0afd019 | 296 | \r |
297 | NumberOfEntries = (UINTN) (mGaugeData->NumberOfEntries);\r | |
298 | if (LogEntryKey > NumberOfEntries) {\r | |
299 | return EFI_INVALID_PARAMETER;\r | |
300 | }\r | |
301 | if (LogEntryKey == NumberOfEntries) {\r | |
302 | return EFI_NOT_FOUND;\r | |
303 | }\r | |
304 | \r | |
f0da4d7d SZ |
305 | GaugeEntryExArray = (GAUGE_DATA_ENTRY_EX *) (mGaugeData + 1);\r |
306 | \r | |
307 | if (GaugeDataEntryEx == NULL) {\r | |
308 | return EFI_INVALID_PARAMETER;\r | |
309 | }\r | |
310 | *GaugeDataEntryEx = &GaugeEntryExArray[LogEntryKey];\r | |
311 | \r | |
312 | return EFI_SUCCESS;\r | |
313 | }\r | |
314 | \r | |
315 | /**\r | |
316 | Adds a record at the end of the performance measurement log\r | |
317 | that records the start time of a performance measurement.\r | |
318 | \r | |
319 | Adds a record to the end of the performance measurement log\r | |
320 | that contains the Handle, Token, and Module.\r | |
321 | The end time of the new record must be set to zero.\r | |
322 | If TimeStamp is not zero, then TimeStamp is used to fill in the start time in the record.\r | |
323 | If TimeStamp is zero, the start time in the record is filled in with the value\r | |
324 | read from the current time stamp.\r | |
325 | \r | |
326 | @param Handle Pointer to environment specific context used\r | |
327 | to identify the component being measured.\r | |
328 | @param Token Pointer to a Null-terminated ASCII string\r | |
329 | that identifies the component being measured.\r | |
330 | @param Module Pointer to a Null-terminated ASCII string\r | |
331 | that identifies the module being measured.\r | |
332 | @param TimeStamp 64-bit time stamp.\r | |
333 | \r | |
334 | @retval EFI_SUCCESS The data was read correctly from the device.\r | |
335 | @retval EFI_OUT_OF_RESOURCES There are not enough resources to record the measurement.\r | |
336 | \r | |
337 | **/\r | |
338 | EFI_STATUS\r | |
339 | EFIAPI\r | |
340 | StartGauge (\r | |
341 | IN CONST VOID *Handle, OPTIONAL\r | |
342 | IN CONST CHAR8 *Token, OPTIONAL\r | |
343 | IN CONST CHAR8 *Module, OPTIONAL\r | |
344 | IN UINT64 TimeStamp\r | |
345 | )\r | |
346 | {\r | |
347 | return StartGaugeEx (Handle, Token, Module, TimeStamp, 0);\r | |
348 | }\r | |
349 | \r | |
350 | /**\r | |
351 | Searches the performance measurement log from the beginning of the log\r | |
352 | for the first matching record that contains a zero end time and fills in a valid end time.\r | |
353 | \r | |
354 | Searches the performance measurement log from the beginning of the log\r | |
355 | for the first record that matches Handle, Token, and Module and has an end time value of zero.\r | |
356 | If the record can not be found then return EFI_NOT_FOUND.\r | |
357 | If the record is found and TimeStamp is not zero,\r | |
358 | then the end time in the record is filled in with the value specified by TimeStamp.\r | |
359 | If the record is found and TimeStamp is zero, then the end time in the matching record\r | |
360 | is filled in with the current time stamp value.\r | |
361 | \r | |
362 | @param Handle Pointer to environment specific context used\r | |
363 | to identify the component being measured.\r | |
364 | @param Token Pointer to a Null-terminated ASCII string\r | |
365 | that identifies the component being measured.\r | |
366 | @param Module Pointer to a Null-terminated ASCII string\r | |
367 | that identifies the module being measured.\r | |
368 | @param TimeStamp 64-bit time stamp.\r | |
369 | \r | |
370 | @retval EFI_SUCCESS The end of the measurement was recorded.\r | |
371 | @retval EFI_NOT_FOUND The specified measurement record could not be found.\r | |
372 | \r | |
373 | **/\r | |
374 | EFI_STATUS\r | |
375 | EFIAPI\r | |
376 | EndGauge (\r | |
377 | IN CONST VOID *Handle, OPTIONAL\r | |
378 | IN CONST CHAR8 *Token, OPTIONAL\r | |
379 | IN CONST CHAR8 *Module, OPTIONAL\r | |
380 | IN UINT64 TimeStamp\r | |
381 | )\r | |
382 | {\r | |
383 | return EndGaugeEx (Handle, Token, Module, TimeStamp, 0);\r | |
384 | }\r | |
385 | \r | |
386 | /**\r | |
387 | Retrieves a previously logged performance measurement.\r | |
388 | It can also retrieve the log created by StartGaugeEx and EndGaugeEx of PERFORMANCE_EX_PROTOCOL,\r | |
389 | and then eliminate the Identifier.\r | |
390 | \r | |
391 | Retrieves the performance log entry from the performance log specified by LogEntryKey.\r | |
392 | If it stands for a valid entry, then EFI_SUCCESS is returned and\r | |
393 | GaugeDataEntry stores the pointer to that entry.\r | |
394 | \r | |
395 | @param LogEntryKey The key for the previous performance measurement log entry.\r | |
396 | If 0, then the first performance measurement log entry is retrieved.\r | |
397 | @param GaugeDataEntry The indirect pointer to the gauge data entry specified by LogEntryKey\r | |
398 | if the retrieval is successful.\r | |
399 | \r | |
400 | @retval EFI_SUCCESS The GuageDataEntry is successfully found based on LogEntryKey.\r | |
401 | @retval EFI_NOT_FOUND The LogEntryKey is the last entry (equals to the total entry number).\r | |
402 | @retval EFI_INVALIDE_PARAMETER The LogEntryKey is not a valid entry (greater than the total entry number).\r | |
403 | @retval EFI_INVALIDE_PARAMETER GaugeDataEntry is NULL.\r | |
404 | \r | |
405 | **/\r | |
406 | EFI_STATUS\r | |
407 | EFIAPI\r | |
408 | GetGauge (\r | |
409 | IN UINTN LogEntryKey,\r | |
410 | OUT GAUGE_DATA_ENTRY **GaugeDataEntry\r | |
411 | )\r | |
412 | {\r | |
413 | EFI_STATUS Status;\r | |
414 | GAUGE_DATA_ENTRY_EX *GaugeEntryEx;\r | |
415 | \r | |
1658440e SZ |
416 | GaugeEntryEx = NULL;\r |
417 | \r | |
f0da4d7d SZ |
418 | Status = GetGaugeEx (LogEntryKey, &GaugeEntryEx);\r |
419 | if (EFI_ERROR (Status)) {\r | |
420 | return Status;\r | |
421 | }\r | |
a0afd019 | 422 | \r |
423 | if (GaugeDataEntry == NULL) {\r | |
424 | return EFI_INVALID_PARAMETER;\r | |
425 | }\r | |
f0da4d7d SZ |
426 | \r |
427 | *GaugeDataEntry = (GAUGE_DATA_ENTRY *) GaugeEntryEx;\r | |
a0afd019 | 428 | \r |
429 | return EFI_SUCCESS;\r | |
430 | }\r | |
431 | \r | |
432 | /**\r | |
433 | Dumps all the PEI performance log to DXE performance gauge array.\r | |
434 | \r | |
435 | This internal function dumps all the PEI performance log to the DXE performance gauge array.\r | |
436 | It retrieves the optional GUID HOB for PEI performance and then saves the performance data\r | |
437 | to DXE performance data structures.\r | |
438 | \r | |
439 | **/\r | |
a0afd019 | 440 | VOID\r |
441 | InternalGetPeiPerformance (\r | |
442 | VOID\r | |
443 | )\r | |
444 | {\r | |
445 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
446 | PEI_PERFORMANCE_LOG_HEADER *LogHob;\r | |
447 | PEI_PERFORMANCE_LOG_ENTRY *LogEntryArray;\r | |
f0da4d7d SZ |
448 | UINT32 *LogIdArray;\r |
449 | GAUGE_DATA_ENTRY_EX *GaugeEntryExArray;\r | |
a0afd019 | 450 | UINT32 Index;\r |
451 | UINT32 NumberOfEntries;\r | |
452 | \r | |
453 | NumberOfEntries = 0;\r | |
f0da4d7d | 454 | GaugeEntryExArray = (GAUGE_DATA_ENTRY_EX *) (mGaugeData + 1);\r |
a0afd019 | 455 | \r |
456 | //\r | |
457 | // Dump PEI Log Entries to DXE Guage Data structure.\r | |
458 | //\r | |
ee0961f7 | 459 | GuidHob = GetFirstGuidHob (&gPerformanceProtocolGuid);\r |
a0afd019 | 460 | if (GuidHob != NULL) {\r |
461 | LogHob = GET_GUID_HOB_DATA (GuidHob);\r | |
462 | LogEntryArray = (PEI_PERFORMANCE_LOG_ENTRY *) (LogHob + 1);\r | |
a0afd019 | 463 | \r |
464 | NumberOfEntries = LogHob->NumberOfEntries;\r | |
465 | for (Index = 0; Index < NumberOfEntries; Index++) {\r | |
f0da4d7d | 466 | GaugeEntryExArray[Index].Handle = LogEntryArray[Index].Handle;\r |
96f983fa QS |
467 | AsciiStrCpyS (GaugeEntryExArray[Index].Token, DXE_PERFORMANCE_STRING_SIZE, LogEntryArray[Index].Token);\r |
468 | AsciiStrCpyS (GaugeEntryExArray[Index].Module, DXE_PERFORMANCE_STRING_SIZE, LogEntryArray[Index].Module);\r | |
f0da4d7d SZ |
469 | GaugeEntryExArray[Index].StartTimeStamp = LogEntryArray[Index].StartTimeStamp;\r |
470 | GaugeEntryExArray[Index].EndTimeStamp = LogEntryArray[Index].EndTimeStamp;\r | |
471 | GaugeEntryExArray[Index].Identifier = 0;\r | |
472 | }\r | |
473 | \r | |
474 | GuidHob = GetFirstGuidHob (&gPerformanceExProtocolGuid);\r | |
475 | if (GuidHob != NULL) {\r | |
476 | LogIdArray = GET_GUID_HOB_DATA (GuidHob);\r | |
477 | for (Index = 0; Index < NumberOfEntries; Index++) {\r | |
478 | GaugeEntryExArray[Index].Identifier = LogIdArray[Index];\r | |
479 | }\r | |
a0afd019 | 480 | }\r |
481 | }\r | |
482 | mGaugeData->NumberOfEntries = NumberOfEntries;\r | |
483 | }\r | |
484 | \r | |
485 | /**\r | |
486 | The constructor function initializes Performance infrastructure for DXE phase.\r | |
487 | \r | |
f0da4d7d | 488 | The constructor function publishes Performance and PerformanceEx protocol, allocates memory to log DXE performance\r |
a0afd019 | 489 | and merges PEI performance data to DXE performance log.\r |
490 | It will ASSERT() if one of these operations fails and it will always return EFI_SUCCESS.\r | |
491 | \r | |
492 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
493 | @param SystemTable A pointer to the EFI System Table.\r | |
494 | \r | |
495 | @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.\r | |
496 | \r | |
497 | **/\r | |
498 | EFI_STATUS\r | |
499 | EFIAPI\r | |
500 | DxeCorePerformanceLibConstructor (\r | |
501 | IN EFI_HANDLE ImageHandle,\r | |
502 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
503 | )\r | |
504 | {\r | |
505 | EFI_STATUS Status;\r | |
506 | \r | |
507 | if (!PerformanceMeasurementEnabled ()) {\r | |
508 | //\r | |
509 | // Do not initialize performance infrastructure if not required.\r | |
510 | //\r | |
511 | return EFI_SUCCESS;\r | |
512 | }\r | |
513 | //\r | |
514 | // Install the protocol interfaces.\r | |
515 | //\r | |
f0da4d7d | 516 | Status = gBS->InstallMultipleProtocolInterfaces (\r |
a0afd019 | 517 | &mHandle,\r |
518 | &gPerformanceProtocolGuid,\r | |
f0da4d7d SZ |
519 | &mPerformanceInterface,\r |
520 | &gPerformanceExProtocolGuid,\r | |
521 | &mPerformanceExInterface,\r | |
522 | NULL\r | |
a0afd019 | 523 | );\r |
524 | ASSERT_EFI_ERROR (Status);\r | |
525 | \r | |
7c50b343 CS |
526 | mMaxGaugeRecords = INIT_DXE_GAUGE_DATA_ENTRIES + (UINT16) (PcdGet16 (PcdMaxPeiPerformanceLogEntries16) != 0 ?\r |
527 | PcdGet16 (PcdMaxPeiPerformanceLogEntries16) :\r | |
528 | PcdGet8 (PcdMaxPeiPerformanceLogEntries));\r | |
a0afd019 | 529 | \r |
f0da4d7d | 530 | mGaugeData = AllocateZeroPool (sizeof (GAUGE_DATA_HEADER) + (sizeof (GAUGE_DATA_ENTRY_EX) * mMaxGaugeRecords));\r |
a0afd019 | 531 | ASSERT (mGaugeData != NULL);\r |
532 | \r | |
533 | InternalGetPeiPerformance ();\r | |
534 | \r | |
535 | return Status;\r | |
536 | }\r | |
537 | \r | |
538 | /**\r | |
539 | Adds a record at the end of the performance measurement log\r | |
540 | that records the start time of a performance measurement.\r | |
541 | \r | |
542 | Adds a record to the end of the performance measurement log\r | |
f0da4d7d | 543 | that contains the Handle, Token, Module and Identifier.\r |
a0afd019 | 544 | The end time of the new record must be set to zero.\r |
545 | If TimeStamp is not zero, then TimeStamp is used to fill in the start time in the record.\r | |
546 | If TimeStamp is zero, the start time in the record is filled in with the value\r | |
547 | read from the current time stamp.\r | |
548 | \r | |
549 | @param Handle Pointer to environment specific context used\r | |
550 | to identify the component being measured.\r | |
551 | @param Token Pointer to a Null-terminated ASCII string\r | |
552 | that identifies the component being measured.\r | |
553 | @param Module Pointer to a Null-terminated ASCII string\r | |
554 | that identifies the module being measured.\r | |
555 | @param TimeStamp 64-bit time stamp.\r | |
f0da4d7d SZ |
556 | @param Identifier 32-bit identifier. If the value is 0, the created record\r |
557 | is same as the one created by StartPerformanceMeasurement.\r | |
a0afd019 | 558 | \r |
559 | @retval RETURN_SUCCESS The start of the measurement was recorded.\r | |
560 | @retval RETURN_OUT_OF_RESOURCES There are not enough resources to record the measurement.\r | |
561 | \r | |
562 | **/\r | |
563 | RETURN_STATUS\r | |
564 | EFIAPI\r | |
f0da4d7d | 565 | StartPerformanceMeasurementEx (\r |
a0afd019 | 566 | IN CONST VOID *Handle, OPTIONAL\r |
567 | IN CONST CHAR8 *Token, OPTIONAL\r | |
568 | IN CONST CHAR8 *Module, OPTIONAL\r | |
f0da4d7d SZ |
569 | IN UINT64 TimeStamp,\r |
570 | IN UINT32 Identifier\r | |
a0afd019 | 571 | )\r |
572 | {\r | |
f0da4d7d | 573 | return (RETURN_STATUS) StartGaugeEx (Handle, Token, Module, TimeStamp, Identifier);\r |
a0afd019 | 574 | }\r |
575 | \r | |
576 | /**\r | |
577 | Searches the performance measurement log from the beginning of the log\r | |
578 | for the first matching record that contains a zero end time and fills in a valid end time.\r | |
579 | \r | |
580 | Searches the performance measurement log from the beginning of the log\r | |
f0da4d7d | 581 | for the first record that matches Handle, Token, Module and Identifier and has an end time value of zero.\r |
a0afd019 | 582 | If the record can not be found then return RETURN_NOT_FOUND.\r |
583 | If the record is found and TimeStamp is not zero,\r | |
584 | then the end time in the record is filled in with the value specified by TimeStamp.\r | |
585 | If the record is found and TimeStamp is zero, then the end time in the matching record\r | |
586 | is filled in with the current time stamp value.\r | |
587 | \r | |
588 | @param Handle Pointer to environment specific context used\r | |
589 | to identify the component being measured.\r | |
590 | @param Token Pointer to a Null-terminated ASCII string\r | |
591 | that identifies the component being measured.\r | |
592 | @param Module Pointer to a Null-terminated ASCII string\r | |
593 | that identifies the module being measured.\r | |
594 | @param TimeStamp 64-bit time stamp.\r | |
f0da4d7d SZ |
595 | @param Identifier 32-bit identifier. If the value is 0, the found record\r |
596 | is same as the one found by EndPerformanceMeasurement.\r | |
a0afd019 | 597 | \r |
598 | @retval RETURN_SUCCESS The end of the measurement was recorded.\r | |
599 | @retval RETURN_NOT_FOUND The specified measurement record could not be found.\r | |
600 | \r | |
601 | **/\r | |
602 | RETURN_STATUS\r | |
603 | EFIAPI\r | |
f0da4d7d | 604 | EndPerformanceMeasurementEx (\r |
a0afd019 | 605 | IN CONST VOID *Handle, OPTIONAL\r |
606 | IN CONST CHAR8 *Token, OPTIONAL\r | |
607 | IN CONST CHAR8 *Module, OPTIONAL\r | |
f0da4d7d SZ |
608 | IN UINT64 TimeStamp,\r |
609 | IN UINT32 Identifier\r | |
a0afd019 | 610 | )\r |
611 | {\r | |
f0da4d7d | 612 | return (RETURN_STATUS) EndGaugeEx (Handle, Token, Module, TimeStamp, Identifier);\r |
a0afd019 | 613 | }\r |
614 | \r | |
615 | /**\r | |
616 | Attempts to retrieve a performance measurement log entry from the performance measurement log.\r | |
f0da4d7d SZ |
617 | It can also retrieve the log created by StartPerformanceMeasurement and EndPerformanceMeasurement,\r |
618 | and then assign the Identifier with 0.\r | |
a0afd019 | 619 | \r |
620 | Attempts to retrieve the performance log entry specified by LogEntryKey. If LogEntryKey is\r | |
621 | zero on entry, then an attempt is made to retrieve the first entry from the performance log,\r | |
622 | and the key for the second entry in the log is returned. If the performance log is empty,\r | |
623 | then no entry is retrieved and zero is returned. If LogEntryKey is not zero, then the performance\r | |
624 | log entry associated with LogEntryKey is retrieved, and the key for the next entry in the log is\r | |
625 | returned. If LogEntryKey is the key for the last entry in the log, then the last log entry is\r | |
626 | retrieved and an implementation specific non-zero key value that specifies the end of the performance\r | |
627 | log is returned. If LogEntryKey is equal this implementation specific non-zero key value, then no entry\r | |
628 | is retrieved and zero is returned. In the cases where a performance log entry can be returned,\r | |
f0da4d7d | 629 | the log entry is returned in Handle, Token, Module, StartTimeStamp, EndTimeStamp and Identifier.\r |
a0afd019 | 630 | If LogEntryKey is not a valid log entry key for the performance measurement log, then ASSERT().\r |
631 | If Handle is NULL, then ASSERT().\r | |
632 | If Token is NULL, then ASSERT().\r | |
633 | If Module is NULL, then ASSERT().\r | |
634 | If StartTimeStamp is NULL, then ASSERT().\r | |
635 | If EndTimeStamp is NULL, then ASSERT().\r | |
f0da4d7d | 636 | If Identifier is NULL, then ASSERT().\r |
a0afd019 | 637 | \r |
638 | @param LogEntryKey On entry, the key of the performance measurement log entry to retrieve.\r | |
639 | 0, then the first performance measurement log entry is retrieved.\r | |
857dfc45 | 640 | On exit, the key of the next performance log entry.\r |
a0afd019 | 641 | @param Handle Pointer to environment specific context used to identify the component\r |
642 | being measured.\r | |
643 | @param Token Pointer to a Null-terminated ASCII string that identifies the component\r | |
644 | being measured.\r | |
645 | @param Module Pointer to a Null-terminated ASCII string that identifies the module\r | |
646 | being measured.\r | |
647 | @param StartTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement\r | |
648 | was started.\r | |
649 | @param EndTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement\r | |
650 | was ended.\r | |
f0da4d7d | 651 | @param Identifier Pointer to the 32-bit identifier that was recorded.\r |
a0afd019 | 652 | \r |
653 | @return The key for the next performance log entry (in general case).\r | |
654 | \r | |
655 | **/\r | |
656 | UINTN\r | |
657 | EFIAPI\r | |
f0da4d7d SZ |
658 | GetPerformanceMeasurementEx (\r |
659 | IN UINTN LogEntryKey, \r | |
a0afd019 | 660 | OUT CONST VOID **Handle,\r |
661 | OUT CONST CHAR8 **Token,\r | |
662 | OUT CONST CHAR8 **Module,\r | |
663 | OUT UINT64 *StartTimeStamp,\r | |
f0da4d7d SZ |
664 | OUT UINT64 *EndTimeStamp,\r |
665 | OUT UINT32 *Identifier\r | |
a0afd019 | 666 | )\r |
667 | {\r | |
f0da4d7d SZ |
668 | EFI_STATUS Status;\r |
669 | GAUGE_DATA_ENTRY_EX *GaugeData;\r | |
a0afd019 | 670 | \r |
952671b3 | 671 | GaugeData = NULL;\r |
672 | \r | |
a0afd019 | 673 | ASSERT (Handle != NULL);\r |
674 | ASSERT (Token != NULL);\r | |
675 | ASSERT (Module != NULL);\r | |
676 | ASSERT (StartTimeStamp != NULL);\r | |
677 | ASSERT (EndTimeStamp != NULL);\r | |
f0da4d7d | 678 | ASSERT (Identifier != NULL);\r |
a0afd019 | 679 | \r |
f0da4d7d | 680 | Status = GetGaugeEx (LogEntryKey++, &GaugeData);\r |
a0afd019 | 681 | \r |
682 | //\r | |
683 | // Make sure that LogEntryKey is a valid log entry key,\r | |
684 | //\r | |
685 | ASSERT (Status != EFI_INVALID_PARAMETER);\r | |
686 | \r | |
687 | if (EFI_ERROR (Status)) {\r | |
688 | //\r | |
689 | // The LogEntryKey is the last entry (equals to the total entry number).\r | |
690 | //\r | |
691 | return 0;\r | |
692 | }\r | |
693 | \r | |
694 | ASSERT (GaugeData != NULL);\r | |
695 | \r | |
696 | *Handle = (VOID *) (UINTN) GaugeData->Handle;\r | |
697 | *Token = GaugeData->Token;\r | |
698 | *Module = GaugeData->Module;\r | |
699 | *StartTimeStamp = GaugeData->StartTimeStamp;\r | |
700 | *EndTimeStamp = GaugeData->EndTimeStamp;\r | |
f0da4d7d | 701 | *Identifier = GaugeData->Identifier;\r |
a0afd019 | 702 | \r |
703 | return LogEntryKey;\r | |
704 | }\r | |
705 | \r | |
f0da4d7d SZ |
706 | /**\r |
707 | Adds a record at the end of the performance measurement log\r | |
708 | that records the start time of a performance measurement.\r | |
709 | \r | |
710 | Adds a record to the end of the performance measurement log\r | |
711 | that contains the Handle, Token, and Module.\r | |
712 | The end time of the new record must be set to zero.\r | |
713 | If TimeStamp is not zero, then TimeStamp is used to fill in the start time in the record.\r | |
714 | If TimeStamp is zero, the start time in the record is filled in with the value\r | |
715 | read from the current time stamp.\r | |
716 | \r | |
717 | @param Handle Pointer to environment specific context used\r | |
718 | to identify the component being measured.\r | |
719 | @param Token Pointer to a Null-terminated ASCII string\r | |
720 | that identifies the component being measured.\r | |
721 | @param Module Pointer to a Null-terminated ASCII string\r | |
722 | that identifies the module being measured.\r | |
723 | @param TimeStamp 64-bit time stamp.\r | |
724 | \r | |
725 | @retval RETURN_SUCCESS The start of the measurement was recorded.\r | |
726 | @retval RETURN_OUT_OF_RESOURCES There are not enough resources to record the measurement.\r | |
727 | \r | |
728 | **/\r | |
729 | RETURN_STATUS\r | |
730 | EFIAPI\r | |
731 | StartPerformanceMeasurement (\r | |
732 | IN CONST VOID *Handle, OPTIONAL\r | |
733 | IN CONST CHAR8 *Token, OPTIONAL\r | |
734 | IN CONST CHAR8 *Module, OPTIONAL\r | |
735 | IN UINT64 TimeStamp\r | |
736 | )\r | |
737 | {\r | |
738 | return StartPerformanceMeasurementEx (Handle, Token, Module, TimeStamp, 0);\r | |
739 | }\r | |
740 | \r | |
741 | /**\r | |
742 | Searches the performance measurement log from the beginning of the log\r | |
743 | for the first matching record that contains a zero end time and fills in a valid end time.\r | |
744 | \r | |
745 | Searches the performance measurement log from the beginning of the log\r | |
746 | for the first record that matches Handle, Token, and Module and has an end time value of zero.\r | |
747 | If the record can not be found then return RETURN_NOT_FOUND.\r | |
748 | If the record is found and TimeStamp is not zero,\r | |
749 | then the end time in the record is filled in with the value specified by TimeStamp.\r | |
750 | If the record is found and TimeStamp is zero, then the end time in the matching record\r | |
751 | is filled in with the current time stamp value.\r | |
752 | \r | |
753 | @param Handle Pointer to environment specific context used\r | |
754 | to identify the component being measured.\r | |
755 | @param Token Pointer to a Null-terminated ASCII string\r | |
756 | that identifies the component being measured.\r | |
757 | @param Module Pointer to a Null-terminated ASCII string\r | |
758 | that identifies the module being measured.\r | |
759 | @param TimeStamp 64-bit time stamp.\r | |
760 | \r | |
761 | @retval RETURN_SUCCESS The end of the measurement was recorded.\r | |
762 | @retval RETURN_NOT_FOUND The specified measurement record could not be found.\r | |
763 | \r | |
764 | **/\r | |
765 | RETURN_STATUS\r | |
766 | EFIAPI\r | |
767 | EndPerformanceMeasurement (\r | |
768 | IN CONST VOID *Handle, OPTIONAL\r | |
769 | IN CONST CHAR8 *Token, OPTIONAL\r | |
770 | IN CONST CHAR8 *Module, OPTIONAL\r | |
771 | IN UINT64 TimeStamp\r | |
772 | )\r | |
773 | {\r | |
774 | return EndPerformanceMeasurementEx (Handle, Token, Module, TimeStamp, 0);\r | |
775 | }\r | |
776 | \r | |
777 | /**\r | |
778 | Attempts to retrieve a performance measurement log entry from the performance measurement log.\r | |
779 | It can also retrieve the log created by StartPerformanceMeasurementEx and EndPerformanceMeasurementEx,\r | |
780 | and then eliminate the Identifier.\r | |
781 | \r | |
782 | Attempts to retrieve the performance log entry specified by LogEntryKey. If LogEntryKey is\r | |
783 | zero on entry, then an attempt is made to retrieve the first entry from the performance log,\r | |
784 | and the key for the second entry in the log is returned. If the performance log is empty,\r | |
785 | then no entry is retrieved and zero is returned. If LogEntryKey is not zero, then the performance\r | |
786 | log entry associated with LogEntryKey is retrieved, and the key for the next entry in the log is\r | |
787 | returned. If LogEntryKey is the key for the last entry in the log, then the last log entry is\r | |
788 | retrieved and an implementation specific non-zero key value that specifies the end of the performance\r | |
789 | log is returned. If LogEntryKey is equal this implementation specific non-zero key value, then no entry\r | |
790 | is retrieved and zero is returned. In the cases where a performance log entry can be returned,\r | |
791 | the log entry is returned in Handle, Token, Module, StartTimeStamp, and EndTimeStamp.\r | |
792 | If LogEntryKey is not a valid log entry key for the performance measurement log, then ASSERT().\r | |
793 | If Handle is NULL, then ASSERT().\r | |
794 | If Token is NULL, then ASSERT().\r | |
795 | If Module is NULL, then ASSERT().\r | |
796 | If StartTimeStamp is NULL, then ASSERT().\r | |
797 | If EndTimeStamp is NULL, then ASSERT().\r | |
798 | \r | |
799 | @param LogEntryKey On entry, the key of the performance measurement log entry to retrieve.\r | |
800 | 0, then the first performance measurement log entry is retrieved.\r | |
801 | On exit, the key of the next performance log entry.\r | |
802 | @param Handle Pointer to environment specific context used to identify the component\r | |
803 | being measured.\r | |
804 | @param Token Pointer to a Null-terminated ASCII string that identifies the component\r | |
805 | being measured.\r | |
806 | @param Module Pointer to a Null-terminated ASCII string that identifies the module\r | |
807 | being measured.\r | |
808 | @param StartTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement\r | |
809 | was started.\r | |
810 | @param EndTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement\r | |
811 | was ended.\r | |
812 | \r | |
813 | @return The key for the next performance log entry (in general case).\r | |
814 | \r | |
815 | **/\r | |
816 | UINTN\r | |
817 | EFIAPI\r | |
818 | GetPerformanceMeasurement (\r | |
819 | IN UINTN LogEntryKey,\r | |
820 | OUT CONST VOID **Handle,\r | |
821 | OUT CONST CHAR8 **Token,\r | |
822 | OUT CONST CHAR8 **Module,\r | |
823 | OUT UINT64 *StartTimeStamp,\r | |
824 | OUT UINT64 *EndTimeStamp\r | |
825 | )\r | |
826 | {\r | |
827 | UINT32 Identifier;\r | |
828 | return GetPerformanceMeasurementEx (LogEntryKey, Handle, Token, Module, StartTimeStamp, EndTimeStamp, &Identifier);\r | |
829 | }\r | |
830 | \r | |
a0afd019 | 831 | /**\r |
832 | Returns TRUE if the performance measurement macros are enabled.\r | |
833 | \r | |
834 | This function returns TRUE if the PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of\r | |
835 | PcdPerformanceLibraryPropertyMask is set. Otherwise FALSE is returned.\r | |
836 | \r | |
837 | @retval TRUE The PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of\r | |
838 | PcdPerformanceLibraryPropertyMask is set.\r | |
839 | @retval FALSE The PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of\r | |
840 | PcdPerformanceLibraryPropertyMask is clear.\r | |
841 | \r | |
842 | **/\r | |
843 | BOOLEAN\r | |
844 | EFIAPI\r | |
845 | PerformanceMeasurementEnabled (\r | |
846 | VOID\r | |
847 | )\r | |
848 | {\r | |
849 | return (BOOLEAN) ((PcdGet8(PcdPerformanceLibraryPropertyMask) & PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED) != 0);\r | |
850 | }\r |