]>
Commit | Line | Data |
---|---|---|
878ddf1f | 1 | /*++\r |
2 | \r | |
3 | Copyright (c) 2006, Intel Corporation \r | |
4 | All rights reserved. This program and the accompanying materials \r | |
5 | are licensed and made available under the terms and conditions of the BSD License \r | |
6 | which accompanies this distribution. The full text of the license may be found at \r | |
7 | http://opensource.org/licenses/bsd-license.php \r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | DxeCorePerformance.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | Support for measurement of DXE performance \r | |
19 | \r | |
20 | --*/\r | |
21 | \r | |
22 | //\r | |
23 | // Interface declarations for Performance Protocol.\r | |
24 | //\r | |
25 | /**\r | |
26 | Adds a record at the end of the performance measurement log\r | |
27 | that records the start time of a performance measurement.\r | |
28 | \r | |
29 | Adds a record to the end of the performance measurement log\r | |
30 | that contains the Handle, Token, and Module.\r | |
31 | The end time of the new record must be set to zero.\r | |
32 | If TimeStamp is not zero, then TimeStamp is used to fill in the start time in the record.\r | |
33 | If TimeStamp is zero, the start time in the record is filled in with the value\r | |
34 | read from the current time stamp. \r | |
35 | \r | |
36 | @param Handle Pointer to environment specific context used\r | |
37 | to identify the component being measured.\r | |
38 | @param Token Pointer to a Null-terminated ASCII string\r | |
39 | that identifies the component being measured.\r | |
40 | @param Module Pointer to a Null-terminated ASCII string\r | |
41 | that identifies the module being measured.\r | |
42 | @param TimeStamp 64-bit time stamp.\r | |
43 | \r | |
44 | @retval EFI_SUCCESS The data was read correctly from the device.\r | |
45 | @retval EFI_OUT_OF_RESOURCES There are not enough resources to record the measurement.\r | |
46 | \r | |
47 | **/\r | |
92dda53e | 48 | STATIC\r |
878ddf1f | 49 | EFI_STATUS\r |
50 | EFIAPI\r | |
51 | StartGauge (\r | |
52 | IN CONST VOID *Handle, OPTIONAL\r | |
53 | IN CONST CHAR8 *Token, OPTIONAL\r | |
54 | IN CONST CHAR8 *Module, OPTIONAL\r | |
55 | IN UINT64 TimeStamp\r | |
56 | );\r | |
57 | \r | |
58 | /**\r | |
59 | Searches the performance measurement log from the beginning of the log\r | |
60 | for the first matching record that contains a zero end time and fills in a valid end time. \r | |
61 | \r | |
62 | Searches the performance measurement log from the beginning of the log\r | |
63 | for the first record that matches Handle, Token, and Module and has an end time value of zero.\r | |
64 | If the record can not be found then return EFI_NOT_FOUND.\r | |
65 | If the record is found and TimeStamp is not zero,\r | |
66 | then the end time in the record is filled in with the value specified by TimeStamp.\r | |
67 | If the record is found and TimeStamp is zero, then the end time in the matching record\r | |
68 | is filled in with the current time stamp value.\r | |
69 | \r | |
70 | @param Handle Pointer to environment specific context used\r | |
71 | to identify the component being measured.\r | |
72 | @param Token Pointer to a Null-terminated ASCII string\r | |
73 | that identifies the component being measured.\r | |
74 | @param Module Pointer to a Null-terminated ASCII string\r | |
75 | that identifies the module being measured.\r | |
76 | @param TimeStamp 64-bit time stamp.\r | |
77 | \r | |
78 | @retval EFI_SUCCESS The end of the measurement was recorded.\r | |
79 | @retval EFI_NOT_FOUND The specified measurement record could not be found.\r | |
80 | \r | |
81 | **/\r | |
92dda53e | 82 | STATIC\r |
878ddf1f | 83 | EFI_STATUS\r |
84 | EFIAPI\r | |
85 | EndGauge (\r | |
86 | IN CONST VOID *Handle, OPTIONAL\r | |
87 | IN CONST CHAR8 *Token, OPTIONAL\r | |
88 | IN CONST CHAR8 *Module, OPTIONAL\r | |
89 | IN UINT64 TimeStamp\r | |
90 | );\r | |
91 | \r | |
92 | /**\r | |
93 | Retrieves a previously logged performance measurement. \r | |
94 | \r | |
95 | Retrieves the performance log entry from the performance log specified by LogEntryKey.\r | |
96 | If it stands for a valid entry, then EFI_SUCCESS is returned and\r | |
97 | GaugeDataEntry stores the pointer to that entry.\r | |
98 | \r | |
99 | @param LogEntryKey The key for the previous performance measurement log entry.\r | |
100 | If 0, then the first performance measurement log entry is retrieved.\r | |
101 | @param GaugeDataEntry The indirect pointer to the gauge data entry specified by LogEntryKey\r | |
102 | if the retrieval is successful.\r | |
103 | \r | |
104 | @retval EFI_SUCCESS The GuageDataEntry is successfuly found based on LogEntryKey.\r | |
105 | @retval EFI_NOT_FOUND The LogEntryKey is the last entry (equals to the total entry number).\r | |
106 | @retval EFI_INVALIDE_PARAMETER The LogEntryKey is not a valid entry (greater than the total entry number).\r | |
107 | @retval EFI_INVALIDE_PARAMETER GaugeDataEntry is NULL. \r | |
108 | \r | |
109 | **/\r | |
92dda53e | 110 | STATIC\r |
878ddf1f | 111 | EFI_STATUS\r |
112 | EFIAPI\r | |
113 | GetGauge (\r | |
114 | IN UINTN LogEntryKey,\r | |
115 | OUT GAUGE_DATA_ENTRY **GaugeDataEntry\r | |
116 | );\r | |
117 | \r | |
118 | //\r | |
119 | // Definition for global variables.\r | |
120 | //\r | |
121 | STATIC GAUGE_DATA_HEADER *mGaugeData;\r | |
122 | STATIC UINT32 mMaxGaugeRecords;\r | |
123 | \r | |
bc724e58 | 124 | EFI_HANDLE mHandle = NULL;\r |
125 | PERFORMANCE_PROTOCOL mPerformanceInterface = {\r | |
878ddf1f | 126 | StartGauge,\r |
127 | EndGauge,\r | |
128 | GetGauge\r | |
129 | };\r | |
130 | \r | |
131 | \r | |
132 | /**\r | |
133 | Searches in the gauge array with keyword Handle, Token and Module.\r | |
134 | \r | |
135 | This internal function searches for the gauge entry in the gauge array.\r | |
136 | If there is an entry that exactly matches the given key word triple\r | |
137 | and its end time stamp is zero, then the index of that gauge entry is returned;\r | |
138 | otherwise, the the number of gauge entries in the array is returned. \r | |
139 | \r | |
140 | @param Handle Pointer to environment specific context used\r | |
141 | to identify the component being measured.\r | |
142 | @param Token Pointer to a Null-terminated ASCII string\r | |
143 | that identifies the component being measured.\r | |
144 | @param Module Pointer to a Null-terminated ASCII string\r | |
145 | that identifies the module being measured.\r | |
146 | \r | |
147 | @retval The index of gauge entry in the array.\r | |
148 | \r | |
149 | **/\r | |
963cbacb | 150 | STATIC\r |
878ddf1f | 151 | UINT32\r |
152 | InternalSearchForGaugeEntry (\r | |
153 | IN CONST VOID *Handle, OPTIONAL\r | |
154 | IN CONST CHAR8 *Token, OPTIONAL\r | |
155 | IN CONST CHAR8 *Module OPTIONAL\r | |
156 | )\r | |
157 | {\r | |
158 | UINT32 Index;\r | |
159 | UINT32 NumberOfEntries;\r | |
160 | GAUGE_DATA_ENTRY *GaugeEntryArray;\r | |
161 | \r | |
162 | if (Token == NULL) {\r | |
163 | Token = "";\r | |
164 | }\r | |
165 | if (Module == NULL) {\r | |
166 | Module = "";\r | |
167 | }\r | |
168 | \r | |
169 | NumberOfEntries = mGaugeData->NumberOfEntries;\r | |
170 | GaugeEntryArray = (GAUGE_DATA_ENTRY *) (mGaugeData + 1);\r | |
171 | \r | |
172 | for (Index = 0; Index < NumberOfEntries; Index++) {\r | |
173 | if ((GaugeEntryArray[Index].Handle == (EFI_PHYSICAL_ADDRESS) (UINTN) Handle) &&\r | |
174 | AsciiStrnCmp (GaugeEntryArray[Index].Token, Token, PEI_PERFORMANCE_STRING_LENGTH) == 0 &&\r | |
175 | AsciiStrnCmp (GaugeEntryArray[Index].Module, Module, PEI_PERFORMANCE_STRING_LENGTH) == 0 &&\r | |
176 | GaugeEntryArray[Index].EndTimeStamp == 0\r | |
177 | ) {\r | |
178 | break;\r | |
179 | }\r | |
180 | }\r | |
181 | \r | |
182 | return Index;\r | |
183 | }\r | |
184 | \r | |
185 | /**\r | |
186 | Adds a record at the end of the performance measurement log\r | |
187 | that records the start time of a performance measurement.\r | |
188 | \r | |
189 | Adds a record to the end of the performance measurement log\r | |
190 | that contains the Handle, Token, and Module.\r | |
191 | The end time of the new record must be set to zero.\r | |
192 | If TimeStamp is not zero, then TimeStamp is used to fill in the start time in the record.\r | |
193 | If TimeStamp is zero, the start time in the record is filled in with the value\r | |
194 | read from the current time stamp. \r | |
195 | \r | |
196 | @param Handle Pointer to environment specific context used\r | |
197 | to identify the component being measured.\r | |
198 | @param Token Pointer to a Null-terminated ASCII string\r | |
199 | that identifies the component being measured.\r | |
200 | @param Module Pointer to a Null-terminated ASCII string\r | |
201 | that identifies the module being measured.\r | |
202 | @param TimeStamp 64-bit time stamp.\r | |
203 | \r | |
204 | @retval EFI_SUCCESS The data was read correctly from the device.\r | |
205 | @retval EFI_OUT_OF_RESOURCES There are not enough resources to record the measurement.\r | |
206 | \r | |
207 | **/\r | |
92dda53e | 208 | STATIC\r |
878ddf1f | 209 | EFI_STATUS\r |
210 | EFIAPI\r | |
211 | StartGauge (\r | |
212 | IN CONST VOID *Handle, OPTIONAL\r | |
213 | IN CONST CHAR8 *Token, OPTIONAL\r | |
214 | IN CONST CHAR8 *Module, OPTIONAL\r | |
215 | IN UINT64 TimeStamp\r | |
216 | )\r | |
217 | {\r | |
218 | GAUGE_DATA_ENTRY *GaugeEntryArray;\r | |
219 | UINTN GaugeDataSize;\r | |
220 | UINTN OldGaugeDataSize;\r | |
221 | GAUGE_DATA_HEADER *OldGaugeData;\r | |
878ddf1f | 222 | UINT32 Index;\r |
223 | \r | |
224 | Index = mGaugeData->NumberOfEntries;\r | |
225 | if (Index >= mMaxGaugeRecords) {\r | |
226 | //\r | |
227 | // Try to enlarge the scale of gauge arrary.\r | |
228 | //\r | |
229 | OldGaugeData = mGaugeData;\r | |
230 | OldGaugeDataSize = sizeof (GAUGE_DATA_HEADER) + sizeof (GAUGE_DATA_ENTRY) * mMaxGaugeRecords;\r | |
bc724e58 | 231 | \r |
878ddf1f | 232 | mMaxGaugeRecords *= 2;\r |
233 | GaugeDataSize = sizeof (GAUGE_DATA_HEADER) + sizeof (GAUGE_DATA_ENTRY) * mMaxGaugeRecords;\r | |
bc724e58 | 234 | \r |
235 | mGaugeData = AllocateZeroPool (GaugeDataSize);\r | |
236 | if (mGaugeData == NULL) {\r | |
5b1b9d8b | 237 | return EFI_OUT_OF_RESOURCES;\r |
878ddf1f | 238 | }\r |
239 | //\r | |
240 | // Initialize new data arry and migrate old data one. \r | |
241 | //\r | |
bc724e58 | 242 | mGaugeData = CopyMem (mGaugeData, OldGaugeData, OldGaugeDataSize);\r |
878ddf1f | 243 | \r |
b187ce9f | 244 | FreePool (OldGaugeData); \r |
878ddf1f | 245 | }\r |
246 | \r | |
247 | GaugeEntryArray = (GAUGE_DATA_ENTRY *) (mGaugeData + 1);\r | |
248 | GaugeEntryArray[Index].Handle = (EFI_PHYSICAL_ADDRESS) (UINTN) Handle;\r | |
249 | \r | |
250 | if (Token != NULL) {\r | |
251 | AsciiStrnCpy (GaugeEntryArray[Index].Token, Token, DXE_PERFORMANCE_STRING_LENGTH);\r | |
252 | }\r | |
253 | if (Module != NULL) {\r | |
254 | AsciiStrnCpy (GaugeEntryArray[Index].Module, Module, DXE_PERFORMANCE_STRING_LENGTH);\r | |
255 | }\r | |
256 | \r | |
257 | if (TimeStamp == 0) {\r | |
258 | TimeStamp = GetPerformanceCounter ();\r | |
259 | }\r | |
260 | GaugeEntryArray[Index].StartTimeStamp = TimeStamp;\r | |
261 | \r | |
262 | mGaugeData->NumberOfEntries++;\r | |
263 | \r | |
264 | return EFI_SUCCESS;\r | |
265 | }\r | |
266 | \r | |
267 | /**\r | |
268 | Searches the performance measurement log from the beginning of the log\r | |
269 | for the first matching record that contains a zero end time and fills in a valid end time. \r | |
270 | \r | |
271 | Searches the performance measurement log from the beginning of the log\r | |
272 | for the first record that matches Handle, Token, and Module and has an end time value of zero.\r | |
273 | If the record can not be found then return EFI_NOT_FOUND.\r | |
274 | If the record is found and TimeStamp is not zero,\r | |
275 | then the end time in the record is filled in with the value specified by TimeStamp.\r | |
276 | If the record is found and TimeStamp is zero, then the end time in the matching record\r | |
277 | is filled in with the current time stamp value.\r | |
278 | \r | |
279 | @param Handle Pointer to environment specific context used\r | |
280 | to identify the component being measured.\r | |
281 | @param Token Pointer to a Null-terminated ASCII string\r | |
282 | that identifies the component being measured.\r | |
283 | @param Module Pointer to a Null-terminated ASCII string\r | |
284 | that identifies the module being measured.\r | |
285 | @param TimeStamp 64-bit time stamp.\r | |
286 | \r | |
287 | @retval EFI_SUCCESS The end of the measurement was recorded.\r | |
288 | @retval EFI_NOT_FOUND The specified measurement record could not be found.\r | |
289 | \r | |
290 | **/\r | |
92dda53e | 291 | STATIC\r |
878ddf1f | 292 | EFI_STATUS\r |
293 | EFIAPI\r | |
294 | EndGauge (\r | |
295 | IN CONST VOID *Handle, OPTIONAL\r | |
296 | IN CONST CHAR8 *Token, OPTIONAL\r | |
297 | IN CONST CHAR8 *Module, OPTIONAL\r | |
298 | IN UINT64 TimeStamp\r | |
299 | )\r | |
300 | {\r | |
301 | GAUGE_DATA_ENTRY *GaugeEntryArray;\r | |
302 | UINT32 Index;\r | |
303 | \r | |
304 | if (TimeStamp == 0) {\r | |
305 | TimeStamp = GetPerformanceCounter ();\r | |
306 | }\r | |
307 | \r | |
308 | Index = InternalSearchForGaugeEntry (Handle, Token, Module);\r | |
309 | if (Index >= mGaugeData->NumberOfEntries) {\r | |
310 | return EFI_NOT_FOUND;\r | |
311 | }\r | |
312 | GaugeEntryArray = (GAUGE_DATA_ENTRY *) (mGaugeData + 1);\r | |
313 | GaugeEntryArray[Index].EndTimeStamp = TimeStamp;\r | |
314 | \r | |
315 | return EFI_SUCCESS;\r | |
316 | }\r | |
317 | \r | |
318 | /**\r | |
319 | Retrieves a previously logged performance measurement. \r | |
320 | \r | |
321 | Retrieves the performance log entry from the performance log specified by LogEntryKey.\r | |
322 | If it stands for a valid entry, then EFI_SUCCESS is returned and\r | |
323 | GaugeDataEntry stores the pointer to that entry.\r | |
324 | \r | |
325 | @param LogEntryKey The key for the previous performance measurement log entry.\r | |
326 | If 0, then the first performance measurement log entry is retrieved.\r | |
327 | @param GaugeDataEntry The indirect pointer to the gauge data entry specified by LogEntryKey\r | |
328 | if the retrieval is successful.\r | |
329 | \r | |
330 | @retval EFI_SUCCESS The GuageDataEntry is successfuly found based on LogEntryKey.\r | |
331 | @retval EFI_NOT_FOUND The LogEntryKey is the last entry (equals to the total entry number).\r | |
332 | @retval EFI_INVALIDE_PARAMETER The LogEntryKey is not a valid entry (greater than the total entry number).\r | |
333 | @retval EFI_INVALIDE_PARAMETER GaugeDataEntry is NULL. \r | |
334 | \r | |
335 | **/\r | |
92dda53e | 336 | STATIC\r |
878ddf1f | 337 | EFI_STATUS\r |
338 | EFIAPI\r | |
339 | GetGauge (\r | |
340 | IN UINTN LogEntryKey,\r | |
341 | OUT GAUGE_DATA_ENTRY **GaugeDataEntry\r | |
342 | )\r | |
343 | {\r | |
344 | UINTN NumberOfEntries;\r | |
345 | GAUGE_DATA_ENTRY *LogEntryArray;\r | |
346 | \r | |
347 | NumberOfEntries = (UINTN) (mGaugeData->NumberOfEntries);\r | |
348 | if (LogEntryKey > NumberOfEntries) {\r | |
349 | return EFI_INVALID_PARAMETER;\r | |
350 | }\r | |
351 | if (LogEntryKey == NumberOfEntries) {\r | |
352 | return EFI_NOT_FOUND;\r | |
353 | }\r | |
354 | \r | |
355 | LogEntryArray = (GAUGE_DATA_ENTRY *) (mGaugeData + 1);\r | |
356 | \r | |
357 | if (GaugeDataEntry == NULL) {\r | |
358 | return EFI_INVALID_PARAMETER;\r | |
359 | }\r | |
360 | *GaugeDataEntry = &LogEntryArray[LogEntryKey];\r | |
361 | \r | |
362 | return EFI_SUCCESS;\r | |
363 | }\r | |
364 | \r | |
365 | /**\r | |
366 | Dumps all the PEI performance log to DXE performance gauge array.\r | |
367 | \r | |
368 | This internal function dumps all the PEI performance log to the DXE performance gauge array.\r | |
369 | It retrieves the optional GUID HOB for PEI performance and then saves the performance data\r | |
370 | to DXE performance data structures.\r | |
371 | \r | |
372 | **/\r | |
963cbacb | 373 | STATIC\r |
878ddf1f | 374 | VOID\r |
375 | InternalGetPeiPerformance (\r | |
376 | VOID\r | |
377 | )\r | |
378 | {\r | |
379 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
380 | PEI_PERFORMANCE_LOG_HEADER *LogHob;\r | |
381 | PEI_PERFORMANCE_LOG_ENTRY *LogEntryArray;\r | |
382 | GAUGE_DATA_ENTRY *GaugeEntryArray;\r | |
383 | UINT32 Index;\r | |
384 | UINT32 NumberOfEntries;\r | |
385 | \r | |
386 | NumberOfEntries = 0;\r | |
387 | GaugeEntryArray = (GAUGE_DATA_ENTRY *) (mGaugeData + 1);\r | |
388 | \r | |
389 | //\r | |
390 | // Dump PEI Log Entries to DXE Guage Data structure. \r | |
391 | //\r | |
392 | GuidHob = GetFirstGuidHob (&gPeiPerformanceHobGuid);\r | |
393 | if (GuidHob != NULL) {\r | |
394 | LogHob = GET_GUID_HOB_DATA (GuidHob);\r | |
395 | LogEntryArray = (PEI_PERFORMANCE_LOG_ENTRY *) (LogHob + 1);\r | |
396 | GaugeEntryArray = (GAUGE_DATA_ENTRY *) (mGaugeData + 1);\r | |
397 | \r | |
398 | NumberOfEntries = LogHob->NumberOfEntries;\r | |
399 | for (Index = 0; Index < NumberOfEntries; Index++) {\r | |
400 | GaugeEntryArray[Index].Handle = LogEntryArray[Index].Handle;\r | |
401 | AsciiStrnCpy (GaugeEntryArray[Index].Token, LogEntryArray[Index].Token, DXE_PERFORMANCE_STRING_LENGTH);\r | |
402 | AsciiStrnCpy (GaugeEntryArray[Index].Module, LogEntryArray[Index].Module, DXE_PERFORMANCE_STRING_LENGTH);\r | |
403 | GaugeEntryArray[Index].StartTimeStamp = LogEntryArray[Index].StartTimeStamp;\r | |
404 | GaugeEntryArray[Index].EndTimeStamp = LogEntryArray[Index].EndTimeStamp;\r | |
405 | }\r | |
406 | }\r | |
407 | mGaugeData->NumberOfEntries = NumberOfEntries;\r | |
408 | }\r | |
409 | \r | |
410 | /**\r | |
411 | The constructor function initializes Performance infrastructure for DXE phase.\r | |
412 | \r | |
413 | The constructor function publishes Performance protocol, allocates memory to log DXE performance\r | |
414 | and merges PEI performance data to DXE performance log.\r | |
415 | It will ASSERT() if one of these operations fails and it will always return EFI_SUCCESS. \r | |
416 | \r | |
417 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
418 | @param SystemTable A pointer to the EFI System Table.\r | |
419 | \r | |
420 | @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.\r | |
421 | \r | |
422 | **/\r | |
423 | EFI_STATUS\r | |
424 | EFIAPI\r | |
425 | DxeCorePerformanceLibConstructor (\r | |
426 | IN EFI_HANDLE ImageHandle,\r | |
427 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
428 | )\r | |
429 | {\r | |
430 | EFI_STATUS Status;\r | |
878ddf1f | 431 | \r |
b187ce9f | 432 | if (!PerformanceMeasurementEnabled ()) {\r |
433 | //\r | |
434 | // Do not initialize performance infrastructure if not required.\r | |
435 | //\r | |
436 | return EFI_SUCCESS;\r | |
437 | }\r | |
878ddf1f | 438 | //\r |
439 | // Install the protocol interfaces.\r | |
440 | //\r | |
878ddf1f | 441 | Status = gBS->InstallProtocolInterface (\r |
bc724e58 | 442 | &mHandle,\r |
878ddf1f | 443 | &gPerformanceProtocolGuid,\r |
444 | EFI_NATIVE_INTERFACE,\r | |
bc724e58 | 445 | &mPerformanceInterface\r |
878ddf1f | 446 | );\r |
447 | ASSERT_EFI_ERROR (Status);\r | |
448 | \r | |
6ffd3b0c | 449 | mMaxGaugeRecords = INIT_DXE_GAUGE_DATA_ENTRIES + PcdGet8 (PcdMaxPeiPerformanceLogEntries);\r |
878ddf1f | 450 | \r |
bc724e58 | 451 | mGaugeData = AllocateZeroPool (sizeof (GAUGE_DATA_HEADER) + (sizeof (GAUGE_DATA_ENTRY) * mMaxGaugeRecords));\r |
452 | ASSERT (mGaugeData != NULL);\r | |
878ddf1f | 453 | \r |
454 | InternalGetPeiPerformance ();\r | |
455 | \r | |
456 | return Status;\r | |
457 | }\r | |
458 | \r | |
459 | /**\r | |
460 | Adds a record at the end of the performance measurement log\r | |
461 | that records the start time of a performance measurement.\r | |
462 | \r | |
463 | Adds a record to the end of the performance measurement log\r | |
464 | that contains the Handle, Token, and Module.\r | |
465 | The end time of the new record must be set to zero.\r | |
466 | If TimeStamp is not zero, then TimeStamp is used to fill in the start time in the record.\r | |
467 | If TimeStamp is zero, the start time in the record is filled in with the value\r | |
468 | read from the current time stamp. \r | |
469 | \r | |
470 | @param Handle Pointer to environment specific context used\r | |
471 | to identify the component being measured.\r | |
472 | @param Token Pointer to a Null-terminated ASCII string\r | |
473 | that identifies the component being measured.\r | |
474 | @param Module Pointer to a Null-terminated ASCII string\r | |
475 | that identifies the module being measured.\r | |
476 | @param TimeStamp 64-bit time stamp.\r | |
477 | \r | |
478 | @retval RETURN_SUCCESS The start of the measurement was recorded.\r | |
479 | @retval RETURN_OUT_OF_RESOURCES There are not enough resources to record the measurement.\r | |
480 | \r | |
481 | **/\r | |
482 | RETURN_STATUS\r | |
483 | EFIAPI\r | |
484 | StartPerformanceMeasurement (\r | |
485 | IN CONST VOID *Handle, OPTIONAL\r | |
486 | IN CONST CHAR8 *Token, OPTIONAL\r | |
487 | IN CONST CHAR8 *Module, OPTIONAL\r | |
488 | IN UINT64 TimeStamp\r | |
489 | )\r | |
490 | {\r | |
491 | EFI_STATUS Status;\r | |
492 | \r | |
493 | Status = StartGauge (Handle, Token, Module, TimeStamp);\r | |
494 | return (RETURN_STATUS) Status;\r | |
495 | }\r | |
496 | \r | |
497 | /**\r | |
498 | Searches the performance measurement log from the beginning of the log\r | |
499 | for the first matching record that contains a zero end time and fills in a valid end time. \r | |
500 | \r | |
501 | Searches the performance measurement log from the beginning of the log\r | |
502 | for the first record that matches Handle, Token, and Module and has an end time value of zero.\r | |
503 | If the record can not be found then return RETURN_NOT_FOUND.\r | |
504 | If the record is found and TimeStamp is not zero,\r | |
505 | then the end time in the record is filled in with the value specified by TimeStamp.\r | |
506 | If the record is found and TimeStamp is zero, then the end time in the matching record\r | |
507 | is filled in with the current time stamp value.\r | |
508 | \r | |
509 | @param Handle Pointer to environment specific context used\r | |
510 | to identify the component being measured.\r | |
511 | @param Token Pointer to a Null-terminated ASCII string\r | |
512 | that identifies the component being measured.\r | |
513 | @param Module Pointer to a Null-terminated ASCII string\r | |
514 | that identifies the module being measured.\r | |
515 | @param TimeStamp 64-bit time stamp.\r | |
516 | \r | |
517 | @retval RETURN_SUCCESS The end of the measurement was recorded.\r | |
518 | @retval RETURN_NOT_FOUND The specified measurement record could not be found.\r | |
519 | \r | |
520 | **/\r | |
521 | RETURN_STATUS\r | |
522 | EFIAPI\r | |
523 | EndPerformanceMeasurement (\r | |
524 | IN CONST VOID *Handle, OPTIONAL\r | |
525 | IN CONST CHAR8 *Token, OPTIONAL\r | |
526 | IN CONST CHAR8 *Module, OPTIONAL\r | |
527 | IN UINT64 TimeStamp\r | |
528 | )\r | |
529 | {\r | |
530 | EFI_STATUS Status;\r | |
531 | \r | |
532 | Status = EndGauge (Handle, Token, Module, TimeStamp);\r | |
533 | return (RETURN_STATUS) Status;\r | |
534 | }\r | |
535 | \r | |
536 | /**\r | |
4ba61e5e | 537 | Attempts to retrieve a performance measurement log entry from the performance measurement log. \r |
878ddf1f | 538 | \r |
4ba61e5e | 539 | Attempts to retrieve the performance log entry specified by LogEntryKey. If LogEntryKey is\r |
540 | zero on entry, then an attempt is made to retrieve the first entry from the performance log,\r | |
541 | and the key for the second entry in the log is returned. If the performance log is empty,\r | |
542 | then no entry is retrieved and zero is returned. If LogEntryKey is not zero, then the performance\r | |
543 | log entry associated with LogEntryKey is retrieved, and the key for the next entry in the log is\r | |
544 | returned. If LogEntryKey is the key for the last entry in the log, then the last log entry is\r | |
545 | retrieved and an implementation specific non-zero key value that specifies the end of the performance\r | |
546 | log is returned. If LogEntryKey is equal this implementation specific non-zero key value, then no entry\r | |
547 | is retrieved and zero is returned. In the cases where a performance log entry can be returned,\r | |
548 | the log entry is returned in Handle, Token, Module, StartTimeStamp, and EndTimeStamp.\r | |
549 | If LogEntryKey is not a valid log entry key for the performance measurement log, then ASSERT().\r | |
550 | If Handle is NULL, then ASSERT().\r | |
551 | If Token is NULL, then ASSERT().\r | |
552 | If Module is NULL, then ASSERT().\r | |
553 | If StartTimeStamp is NULL, then ASSERT().\r | |
554 | If EndTimeStamp is NULL, then ASSERT().\r | |
555 | \r | |
556 | @param LogEntryKey On entry, the key of the performance measurement log entry to retrieve.\r | |
557 | 0, then the first performance measurement log entry is retrieved.\r | |
558 | On exit, the key of the next performance lof entry entry.\r | |
559 | @param Handle Pointer to environment specific context used to identify the component\r | |
560 | being measured. \r | |
561 | @param Token Pointer to a Null-terminated ASCII string that identifies the component\r | |
562 | being measured. \r | |
563 | @param Module Pointer to a Null-terminated ASCII string that identifies the module\r | |
564 | being measured.\r | |
565 | @param StartTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement\r | |
566 | was started.\r | |
567 | @param EndTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement\r | |
568 | was ended.\r | |
569 | \r | |
570 | @return The key for the next performance log entry (in general case).\r | |
878ddf1f | 571 | \r |
572 | **/\r | |
573 | UINTN\r | |
574 | EFIAPI\r | |
575 | GetPerformanceMeasurement (\r | |
4ba61e5e | 576 | IN UINTN LogEntryKey, \r |
878ddf1f | 577 | OUT CONST VOID **Handle,\r |
578 | OUT CONST CHAR8 **Token,\r | |
579 | OUT CONST CHAR8 **Module,\r | |
580 | OUT UINT64 *StartTimeStamp,\r | |
581 | OUT UINT64 *EndTimeStamp\r | |
582 | )\r | |
583 | {\r | |
584 | EFI_STATUS Status;\r | |
585 | GAUGE_DATA_ENTRY *GaugeData;\r | |
586 | \r | |
587 | ASSERT (Handle != NULL);\r | |
588 | ASSERT (Token != NULL);\r | |
589 | ASSERT (Module != NULL);\r | |
590 | ASSERT (StartTimeStamp != NULL);\r | |
591 | ASSERT (EndTimeStamp != NULL);\r | |
592 | \r | |
593 | Status = GetGauge (LogEntryKey++, &GaugeData);\r | |
594 | \r | |
595 | //\r | |
596 | // Make sure that LogEntryKey is a valid log entry key,\r | |
597 | //\r | |
598 | ASSERT (Status != EFI_INVALID_PARAMETER);\r | |
599 | \r | |
600 | if (EFI_ERROR (Status)) {\r | |
601 | //\r | |
602 | // The LogEntryKey is the last entry (equals to the total entry number).\r | |
603 | //\r | |
604 | return 0;\r | |
605 | }\r | |
606 | \r | |
607 | ASSERT (GaugeData != NULL);\r | |
608 | \r | |
609 | *Handle = (VOID *) (UINTN) GaugeData->Handle;\r | |
610 | *Token = GaugeData->Token;\r | |
611 | *Module = GaugeData->Module;\r | |
612 | *StartTimeStamp = GaugeData->StartTimeStamp;\r | |
613 | *EndTimeStamp = GaugeData->EndTimeStamp;\r | |
614 | \r | |
615 | return LogEntryKey; \r | |
616 | }\r | |
617 | \r | |
618 | /**\r | |
619 | Returns TRUE if the performance measurement macros are enabled. \r | |
620 | \r | |
621 | This function returns TRUE if the PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of\r | |
622 | PcdPerformanceLibraryPropertyMask is set. Otherwise FALSE is returned.\r | |
623 | \r | |
624 | @retval TRUE The PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of\r | |
625 | PcdPerformanceLibraryPropertyMask is set.\r | |
626 | @retval FALSE The PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of\r | |
627 | PcdPerformanceLibraryPropertyMask is clear.\r | |
628 | \r | |
629 | **/\r | |
630 | BOOLEAN\r | |
631 | EFIAPI\r | |
632 | PerformanceMeasurementEnabled (\r | |
633 | VOID\r | |
634 | )\r | |
635 | {\r | |
963cbacb | 636 | return (BOOLEAN) ((PcdGet8(PcdPerformanceLibraryPropertyMask) & PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED) != 0);\r |
878ddf1f | 637 | }\r |