+++ /dev/null
-/*++\r
-\r
-Copyright (c) 2006, Intel Corporation \r
-All rights reserved. This program and the accompanying materials \r
-are licensed and made available under the terms and conditions of the BSD License \r
-which accompanies this distribution. The full text of the license may be found at \r
-http://opensource.org/licenses/bsd-license.php \r
- \r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-\r
-Module Name:\r
-\r
- PeiPerformanceLib.c\r
-\r
-Abstract:\r
-\r
- Performance Library\r
-\r
---*/\r
-\r
-/**\r
- Gets PEI the GUID HOB for PEI performance.\r
-\r
- This internal function searches for the GUID HOB for PEI performance.\r
- If that GUID HOB is not found, it will build a new one.\r
- It returns the data area of that GUID HOB to record performance log. \r
-\r
- @param Handle Pointer to environment specific context used\r
- to identify the component being measured.\r
- @param Token Pointer to a Null-terminated ASCII string\r
- that identifies the component being measured.\r
- @param Module Pointer to a Null-terminated ASCII string\r
- that identifies the module being measured.\r
-\r
- @retval The index of log entry in the array.\r
-\r
-**/\r
-STATIC\r
-PEI_PERFORMANCE_LOG_HEADER *\r
-InternalGetPerformanceHobLog (\r
- VOID\r
- )\r
-{\r
- EFI_HOB_GUID_TYPE *GuidHob;\r
- PEI_PERFORMANCE_LOG_HEADER *PeiPerformanceLog;\r
- UINTN PeiPerformanceLogSize;\r
-\r
- GuidHob = GetFirstGuidHob (&gPeiPerformanceHobGuid);\r
- \r
- if (GuidHob != NULL) {\r
- //\r
- // PEI Performance HOB was found, then return the existing one.\r
- //\r
- PeiPerformanceLog = GET_GUID_HOB_DATA (GuidHob);\r
- } else {\r
- //\r
- // PEI Performance HOB was not found, then build one.\r
- //\r
- PeiPerformanceLogSize = sizeof (PEI_PERFORMANCE_LOG_HEADER) + \r
- sizeof (PEI_PERFORMANCE_LOG_ENTRY) * PcdGet8 (PcdMaxPeiPerformanceLogEntries);\r
- PeiPerformanceLog = BuildGuidHob (&gPeiPerformanceHobGuid, PeiPerformanceLogSize);\r
- PeiPerformanceLog = ZeroMem (PeiPerformanceLog, PeiPerformanceLogSize);\r
- }\r
-\r
- return PeiPerformanceLog;\r
-}\r
-\r
-/**\r
- Searches in the log array with keyword Handle, Token and Module.\r
-\r
- This internal function searches for the log entry in the log array.\r
- If there is an entry that exactly matches the given key word triple\r
- and its end time stamp is zero, then the index of that log entry is returned;\r
- otherwise, the the number of log entries in the array is returned. \r
-\r
- @param Handle Pointer to environment specific context used\r
- to identify the component being measured.\r
- @param Token Pointer to a Null-terminated ASCII string\r
- that identifies the component being measured.\r
- @param Module Pointer to a Null-terminated ASCII string\r
- that identifies the module being measured.\r
-\r
- @retval The index of log entry in the array.\r
-\r
-**/\r
-STATIC\r
-UINT32\r
-InternalSearchForLogEntry (\r
- IN PEI_PERFORMANCE_LOG_HEADER *PeiPerformanceLog,\r
- IN CONST VOID *Handle, OPTIONAL\r
- IN CONST CHAR8 *Token, OPTIONAL\r
- IN CONST CHAR8 *Module OPTIONAL\r
- )\r
-{\r
- UINT32 Index;\r
- UINT32 NumberOfEntries;\r
- PEI_PERFORMANCE_LOG_ENTRY *LogEntryArray;\r
- \r
-\r
- if (Token == NULL) {\r
- Token = "";\r
- }\r
- if (Module == NULL) {\r
- Module = "";\r
- }\r
- NumberOfEntries = PeiPerformanceLog->NumberOfEntries;\r
- LogEntryArray = (PEI_PERFORMANCE_LOG_ENTRY *) (PeiPerformanceLog + 1);\r
- \r
- for (Index = 0; Index < NumberOfEntries; Index++) {\r
- if ((LogEntryArray[Index].Handle == (EFI_PHYSICAL_ADDRESS) (UINTN) Handle) &&\r
- AsciiStrnCmp (LogEntryArray[Index].Token, Token, PEI_PERFORMANCE_STRING_LENGTH) == 0 &&\r
- AsciiStrnCmp (LogEntryArray[Index].Module, Module, PEI_PERFORMANCE_STRING_LENGTH) == 0 &&\r
- LogEntryArray[Index].EndTimeStamp == 0\r
- ) {\r
- break;\r
- }\r
- }\r
- return Index;\r
-} \r
-\r
-/**\r
- Creates a record for the beginning of a performance measurement. \r
- \r
- Creates a record that contains the Handle, Token, and Module.\r
- If TimeStamp is not zero, then TimeStamp is added to the record as the start time.\r
- If TimeStamp is zero, then this function reads the current time stamp\r
- and adds that time stamp value to the record as the start time.\r
-\r
- @param Handle Pointer to environment specific context used\r
- to identify the component being measured.\r
- @param Token Pointer to a Null-terminated ASCII string\r
- that identifies the component being measured.\r
- @param Module Pointer to a Null-terminated ASCII string\r
- that identifies the module being measured.\r
- @param TimeStamp 64-bit time stamp.\r
-\r
- @retval RETURN_SUCCESS The start of the measurement was recorded.\r
- @retval RETURN_OUT_OF_RESOURCES There are not enough resources to record the measurement.\r
-\r
-**/\r
-RETURN_STATUS\r
-EFIAPI\r
-StartPerformanceMeasurement (\r
- IN CONST VOID *Handle, OPTIONAL\r
- IN CONST CHAR8 *Token, OPTIONAL\r
- IN CONST CHAR8 *Module, OPTIONAL\r
- IN UINT64 TimeStamp\r
- )\r
-{\r
- PEI_PERFORMANCE_LOG_HEADER *PeiPerformanceLog;\r
- PEI_PERFORMANCE_LOG_ENTRY *LogEntryArray;\r
- UINT32 Index;\r
-\r
- PeiPerformanceLog = InternalGetPerformanceHobLog ();\r
- \r
- if (PeiPerformanceLog->NumberOfEntries >= PcdGet8 (PcdMaxPeiPerformanceLogEntries)) {\r
- return RETURN_OUT_OF_RESOURCES;\r
- }\r
- Index = PeiPerformanceLog->NumberOfEntries++;\r
- LogEntryArray = (PEI_PERFORMANCE_LOG_ENTRY *) (PeiPerformanceLog + 1); \r
- LogEntryArray[Index].Handle = (EFI_PHYSICAL_ADDRESS) (UINTN) Handle;\r
-\r
- if (Token != NULL) {\r
- AsciiStrnCpy (LogEntryArray[Index].Token, Token, PEI_PERFORMANCE_STRING_LENGTH);\r
- }\r
- if (Module != NULL) {\r
- AsciiStrnCpy (LogEntryArray[Index].Module, Module, PEI_PERFORMANCE_STRING_LENGTH);\r
- }\r
-\r
- if (TimeStamp == 0) {\r
- TimeStamp = GetPerformanceCounter ();\r
- }\r
- LogEntryArray[Index].StartTimeStamp = TimeStamp;\r
-\r
- return RETURN_SUCCESS;\r
-}\r
-\r
-/**\r
- Fills in the end time of a performance measurement. \r
- \r
- Looks up the record that matches Handle, Token, and Module.\r
- If the record can not be found then return RETURN_NOT_FOUND.\r
- If the record is found and TimeStamp is not zero,\r
- then TimeStamp is added to the record as the end time.\r
- If the record is found and TimeStamp is zero, then this function reads\r
- the current time stamp and adds that time stamp value to the record as the end time.\r
- If this function is called multiple times for the same record, then the end time is overwritten.\r
-\r
- @param Handle Pointer to environment specific context used\r
- to identify the component being measured.\r
- @param Token Pointer to a Null-terminated ASCII string\r
- that identifies the component being measured.\r
- @param Module Pointer to a Null-terminated ASCII string\r
- that identifies the module being measured.\r
- @param TimeStamp 64-bit time stamp.\r
-\r
- @retval RETURN_SUCCESS The end of the measurement was recorded.\r
- @retval RETURN_NOT_FOUND The specified measurement record could not be found.\r
-\r
-**/\r
-RETURN_STATUS\r
-EFIAPI\r
-EndPerformanceMeasurement (\r
- IN CONST VOID *Handle, OPTIONAL\r
- IN CONST CHAR8 *Token, OPTIONAL\r
- IN CONST CHAR8 *Module, OPTIONAL\r
- IN UINT64 TimeStamp\r
- )\r
-{\r
- PEI_PERFORMANCE_LOG_HEADER *PeiPerformanceLog;\r
- PEI_PERFORMANCE_LOG_ENTRY *LogEntryArray;\r
- UINT32 Index;\r
-\r
- if (TimeStamp == 0) {\r
- TimeStamp = GetPerformanceCounter ();\r
- }\r
- \r
- PeiPerformanceLog = InternalGetPerformanceHobLog ();\r
- Index = InternalSearchForLogEntry (PeiPerformanceLog, Handle, Token, Module);\r
- if (Index >= PeiPerformanceLog->NumberOfEntries) {\r
- return RETURN_NOT_FOUND;\r
- }\r
- LogEntryArray = (PEI_PERFORMANCE_LOG_ENTRY *) (PeiPerformanceLog + 1);\r
- LogEntryArray[Index].EndTimeStamp = TimeStamp;\r
-\r
- return RETURN_SUCCESS;\r
-}\r
-\r
-/**\r
- Attempts to retrieve a performance measurement log entry from the performance measurement log. \r
- \r
- Attempts to retrieve the performance log entry specified by LogEntryKey. If LogEntryKey is\r
- zero on entry, then an attempt is made to retrieve the first entry from the performance log,\r
- and the key for the second entry in the log is returned. If the performance log is empty,\r
- then no entry is retrieved and zero is returned. If LogEntryKey is not zero, then the performance\r
- log entry associated with LogEntryKey is retrieved, and the key for the next entry in the log is\r
- returned. If LogEntryKey is the key for the last entry in the log, then the last log entry is\r
- retrieved and an implementation specific non-zero key value that specifies the end of the performance\r
- log is returned. If LogEntryKey is equal this implementation specific non-zero key value, then no entry\r
- is retrieved and zero is returned. In the cases where a performance log entry can be returned,\r
- the log entry is returned in Handle, Token, Module, StartTimeStamp, and EndTimeStamp.\r
- If LogEntryKey is not a valid log entry key for the performance measurement log, then ASSERT().\r
- If Handle is NULL, then ASSERT().\r
- If Token is NULL, then ASSERT().\r
- If Module is NULL, then ASSERT().\r
- If StartTimeStamp is NULL, then ASSERT().\r
- If EndTimeStamp is NULL, then ASSERT().\r
-\r
- @param LogEntryKey On entry, the key of the performance measurement log entry to retrieve.\r
- 0, then the first performance measurement log entry is retrieved.\r
- On exit, the key of the next performance lof entry entry.\r
- @param Handle Pointer to environment specific context used to identify the component\r
- being measured. \r
- @param Token Pointer to a Null-terminated ASCII string that identifies the component\r
- being measured. \r
- @param Module Pointer to a Null-terminated ASCII string that identifies the module\r
- being measured.\r
- @param StartTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement\r
- was started.\r
- @param EndTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement\r
- was ended.\r
-\r
- @return The key for the next performance log entry (in general case).\r
-\r
-**/\r
-UINTN\r
-EFIAPI\r
-GetPerformanceMeasurement (\r
- IN UINTN LogEntryKey, \r
- OUT CONST VOID **Handle,\r
- OUT CONST CHAR8 **Token,\r
- OUT CONST CHAR8 **Module,\r
- OUT UINT64 *StartTimeStamp,\r
- OUT UINT64 *EndTimeStamp\r
- )\r
-{\r
- PEI_PERFORMANCE_LOG_HEADER *PeiPerformanceLog;\r
- PEI_PERFORMANCE_LOG_ENTRY *CurrentLogEntry;\r
- PEI_PERFORMANCE_LOG_ENTRY *LogEntryArray;\r
- UINTN NumberOfEntries;\r
-\r
- ASSERT (Handle != NULL);\r
- ASSERT (Token != NULL);\r
- ASSERT (Module != NULL);\r
- ASSERT (StartTimeStamp != NULL);\r
- ASSERT (EndTimeStamp != NULL);\r
- \r
- PeiPerformanceLog = InternalGetPerformanceHobLog ();\r
- \r
- NumberOfEntries = (UINTN) (PeiPerformanceLog->NumberOfEntries);\r
- LogEntryArray = (PEI_PERFORMANCE_LOG_ENTRY *) (PeiPerformanceLog + 1);\r
- //\r
- // Make sure that LogEntryKey is a valid log entry key.\r
- //\r
- ASSERT (LogEntryKey <= NumberOfEntries);\r
- \r
- if (LogEntryKey == NumberOfEntries) {\r
- return 0;\r
- }\r
-\r
- CurrentLogEntry = &(LogEntryArray[LogEntryKey++]);\r
-\r
- *Handle = (VOID *) (UINTN) (CurrentLogEntry->Handle);\r
- *Token = CurrentLogEntry->Token;\r
- *Module = CurrentLogEntry->Module;\r
- *StartTimeStamp = CurrentLogEntry->StartTimeStamp;\r
- *EndTimeStamp = CurrentLogEntry->EndTimeStamp;\r
-\r
- return LogEntryKey; \r
-}\r
-\r
-/**\r
- Returns TRUE if the performance measurement macros are enabled. \r
- \r
- This function returns TRUE if the PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of\r
- PcdPerformanceLibraryPropertyMask is set. Otherwise FALSE is returned.\r
-\r
- @retval TRUE The PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of\r
- PcdPerformanceLibraryPropertyMask is set.\r
- @retval FALSE The PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of\r
- PcdPerformanceLibraryPropertyMask is clear.\r
-\r
-**/\r
-BOOLEAN\r
-EFIAPI\r
-PerformanceMeasurementEnabled (\r
- VOID\r
- )\r
-{\r
- return (BOOLEAN) ((PcdGet8(PcdPerformanceLibraryPropertyMask) & PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED) != 0);\r
-}\r
projects / mirror_edk2.git / blobdiff