| /** @file | |
| Base Performance Library which provides no service. | |
| Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> | |
| SPDX-License-Identifier: BSD-2-Clause-Patent | |
| **/ | |
| #include <Base.h> | |
| #include <Library/PerformanceLib.h> | |
| #include <Library/DebugLib.h> | |
| #include <Library/PcdLib.h> | |
| /** | |
| Creates a record for the beginning of a performance measurement. | |
| Creates a record that contains the Handle, Token, and Module. | |
| If TimeStamp is not zero, then TimeStamp is added to the record as the start time. | |
| If TimeStamp is zero, then this function reads the current time stamp | |
| and adds that time stamp value to the record as the start time. | |
| @param Handle The pointer to environment specific context used | |
| to identify the component being measured. | |
| @param Token The pointer to a Null-terminated ASCII string | |
| that identifies the component being measured. | |
| @param Module The pointer to a Null-terminated ASCII string | |
| that identifies the module being measured. | |
| @param TimeStamp 64-bit time stamp. | |
| @retval RETURN_SUCCESS The start of the measurement was recorded. | |
| @retval RETURN_OUT_OF_RESOURCES There are not enough resources to record the measurement. | |
| @retval RETURN_DEVICE_ERROR A device error reading the time stamp. | |
| **/ | |
| RETURN_STATUS | |
| EFIAPI | |
| StartPerformanceMeasurement ( | |
| IN CONST VOID *Handle OPTIONAL, | |
| IN CONST CHAR8 *Token OPTIONAL, | |
| IN CONST CHAR8 *Module OPTIONAL, | |
| IN UINT64 TimeStamp | |
| ) | |
| { | |
| return RETURN_SUCCESS; | |
| } | |
| /** | |
| Fills in the end time of a performance measurement. | |
| Looks up the record that matches Handle, Token, and Module. | |
| If the record can not be found then return RETURN_NOT_FOUND. | |
| If the record is found and TimeStamp is not zero, | |
| then TimeStamp is added to the record as the end time. | |
| If the record is found and TimeStamp is zero, then this function reads | |
| the current time stamp and adds that time stamp value to the record as the end time. | |
| @param Handle The pointer to environment specific context used | |
| to identify the component being measured. | |
| @param Token The pointer to a Null-terminated ASCII string | |
| that identifies the component being measured. | |
| @param Module The pointer to a Null-terminated ASCII string | |
| that identifies the module being measured. | |
| @param TimeStamp 64-bit time stamp. | |
| @retval RETURN_SUCCESS The end of the measurement was recorded. | |
| @retval RETURN_NOT_FOUND The specified measurement record could not be found. | |
| @retval RETURN_DEVICE_ERROR A device error reading the time stamp. | |
| **/ | |
| RETURN_STATUS | |
| EFIAPI | |
| EndPerformanceMeasurement ( | |
| IN CONST VOID *Handle OPTIONAL, | |
| IN CONST CHAR8 *Token OPTIONAL, | |
| IN CONST CHAR8 *Module OPTIONAL, | |
| IN UINT64 TimeStamp | |
| ) | |
| { | |
| return RETURN_SUCCESS; | |
| } | |
| /** | |
| Attempts to retrieve a performance measurement log entry from the performance measurement log. | |
| It can also retrieve the log created by StartPerformanceMeasurementEx and EndPerformanceMeasurementEx, | |
| and then eliminate the Identifier. | |
| Attempts to retrieve the performance log entry specified by LogEntryKey. If LogEntryKey is | |
| zero on entry, then an attempt is made to retrieve the first entry from the performance log, | |
| and the key for the second entry in the log is returned. If the performance log is empty, | |
| then no entry is retrieved and zero is returned. If LogEntryKey is not zero, then the performance | |
| log entry associated with LogEntryKey is retrieved, and the key for the next entry in the log is | |
| returned. If LogEntryKey is the key for the last entry in the log, then the last log entry is | |
| retrieved and an implementation specific non-zero key value that specifies the end of the performance | |
| log is returned. If LogEntryKey is equal this implementation specific non-zero key value, then no entry | |
| is retrieved and zero is returned. In the cases where a performance log entry can be returned, | |
| the log entry is returned in Handle, Token, Module, StartTimeStamp, and EndTimeStamp. | |
| If LogEntryKey is not a valid log entry key for the performance measurement log, then ASSERT(). | |
| If Handle is NULL, then ASSERT(). | |
| If Token is NULL, then ASSERT(). | |
| If Module is NULL, then ASSERT(). | |
| If StartTimeStamp is NULL, then ASSERT(). | |
| If EndTimeStamp is NULL, then ASSERT(). | |
| @param LogEntryKey On entry, the key of the performance measurement log entry to retrieve. | |
| 0, then the first performance measurement log entry is retrieved. | |
| On exit, the key of the next performance lof entry entry. | |
| @param Handle The pointer to environment specific context used to identify the component | |
| being measured. | |
| @param Token The pointer to a Null-terminated ASCII string that identifies the component | |
| being measured. | |
| @param Module The pointer to a Null-terminated ASCII string that identifies the module | |
| being measured. | |
| @param StartTimeStamp The pointer to the 64-bit time stamp that was recorded when the measurement | |
| was started. | |
| @param EndTimeStamp The pointer to the 64-bit time stamp that was recorded when the measurement | |
| was ended. | |
| @return The key for the next performance log entry (in general case). | |
| **/ | |
| UINTN | |
| EFIAPI | |
| GetPerformanceMeasurement ( | |
| IN UINTN LogEntryKey, | |
| OUT CONST VOID **Handle, | |
| OUT CONST CHAR8 **Token, | |
| OUT CONST CHAR8 **Module, | |
| OUT UINT64 *StartTimeStamp, | |
| OUT UINT64 *EndTimeStamp | |
| ) | |
| { | |
| ASSERT (Handle != NULL); | |
| ASSERT (Token != NULL); | |
| ASSERT (Module != NULL); | |
| ASSERT (StartTimeStamp != NULL); | |
| ASSERT (EndTimeStamp != NULL); | |
| return 0; | |
| } | |
| /** | |
| Creates a record for the beginning of a performance measurement. | |
| Creates a record that contains the Handle, Token, Module and Identifier. | |
| If TimeStamp is not zero, then TimeStamp is added to the record as the start time. | |
| If TimeStamp is zero, then this function reads the current time stamp | |
| and adds that time stamp value to the record as the start time. | |
| @param Handle Pointer to environment specific context used | |
| to identify the component being measured. | |
| @param Token Pointer to a Null-terminated ASCII string | |
| that identifies the component being measured. | |
| @param Module Pointer to a Null-terminated ASCII string | |
| that identifies the module being measured. | |
| @param TimeStamp 64-bit time stamp. | |
| @param Identifier 32-bit identifier. If the value is 0, the created record | |
| is same as the one created by StartPerformanceMeasurement. | |
| @retval RETURN_SUCCESS The start of the measurement was recorded. | |
| @retval RETURN_OUT_OF_RESOURCES There are not enough resources to record the measurement. | |
| @retval RETURN_DEVICE_ERROR A device error reading the time stamp. | |
| **/ | |
| RETURN_STATUS | |
| EFIAPI | |
| StartPerformanceMeasurementEx ( | |
| IN CONST VOID *Handle OPTIONAL, | |
| IN CONST CHAR8 *Token OPTIONAL, | |
| IN CONST CHAR8 *Module OPTIONAL, | |
| IN UINT64 TimeStamp, | |
| IN UINT32 Identifier | |
| ) | |
| { | |
| return RETURN_SUCCESS; | |
| } | |
| /** | |
| Fills in the end time of a performance measurement. | |
| Looks up the record that matches Handle, Token, Module and Identifier. | |
| If the record can not be found then return RETURN_NOT_FOUND. | |
| If the record is found and TimeStamp is not zero, | |
| then TimeStamp is added to the record as the end time. | |
| If the record is found and TimeStamp is zero, then this function reads | |
| the current time stamp and adds that time stamp value to the record as the end time. | |
| @param Handle Pointer to environment specific context used | |
| to identify the component being measured. | |
| @param Token Pointer to a Null-terminated ASCII string | |
| that identifies the component being measured. | |
| @param Module Pointer to a Null-terminated ASCII string | |
| that identifies the module being measured. | |
| @param TimeStamp 64-bit time stamp. | |
| @param Identifier 32-bit identifier. If the value is 0, the found record | |
| is same as the one found by EndPerformanceMeasurement. | |
| @retval RETURN_SUCCESS The end of the measurement was recorded. | |
| @retval RETURN_NOT_FOUND The specified measurement record could not be found. | |
| @retval RETURN_DEVICE_ERROR A device error reading the time stamp. | |
| **/ | |
| RETURN_STATUS | |
| EFIAPI | |
| EndPerformanceMeasurementEx ( | |
| IN CONST VOID *Handle OPTIONAL, | |
| IN CONST CHAR8 *Token OPTIONAL, | |
| IN CONST CHAR8 *Module OPTIONAL, | |
| IN UINT64 TimeStamp, | |
| IN UINT32 Identifier | |
| ) | |
| { | |
| return RETURN_SUCCESS; | |
| } | |
| /** | |
| Attempts to retrieve a performance measurement log entry from the performance measurement log. | |
| It can also retrieve the log created by StartPerformanceMeasurement and EndPerformanceMeasurement, | |
| and then assign the Identifier with 0. | |
| Attempts to retrieve the performance log entry specified by LogEntryKey. If LogEntryKey is | |
| zero on entry, then an attempt is made to retrieve the first entry from the performance log, | |
| and the key for the second entry in the log is returned. If the performance log is empty, | |
| then no entry is retrieved and zero is returned. If LogEntryKey is not zero, then the performance | |
| log entry associated with LogEntryKey is retrieved, and the key for the next entry in the log is | |
| returned. If LogEntryKey is the key for the last entry in the log, then the last log entry is | |
| retrieved and an implementation specific non-zero key value that specifies the end of the performance | |
| log is returned. If LogEntryKey is equal this implementation specific non-zero key value, then no entry | |
| is retrieved and zero is returned. In the cases where a performance log entry can be returned, | |
| the log entry is returned in Handle, Token, Module, StartTimeStamp, EndTimeStamp and Identifier. | |
| If LogEntryKey is not a valid log entry key for the performance measurement log, then ASSERT(). | |
| If Handle is NULL, then ASSERT(). | |
| If Token is NULL, then ASSERT(). | |
| If Module is NULL, then ASSERT(). | |
| If StartTimeStamp is NULL, then ASSERT(). | |
| If EndTimeStamp is NULL, then ASSERT(). | |
| If Identifier is NULL, then ASSERT(). | |
| @param LogEntryKey On entry, the key of the performance measurement log entry to retrieve. | |
| 0, then the first performance measurement log entry is retrieved. | |
| On exit, the key of the next performance lof entry entry. | |
| @param Handle Pointer to environment specific context used to identify the component | |
| being measured. | |
| @param Token Pointer to a Null-terminated ASCII string that identifies the component | |
| being measured. | |
| @param Module Pointer to a Null-terminated ASCII string that identifies the module | |
| being measured. | |
| @param StartTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement | |
| was started. | |
| @param EndTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement | |
| was ended. | |
| @param Identifier Pointer to the 32-bit identifier that was recorded. | |
| @return The key for the next performance log entry (in general case). | |
| **/ | |
| UINTN | |
| EFIAPI | |
| GetPerformanceMeasurementEx ( | |
| IN UINTN LogEntryKey, | |
| OUT CONST VOID **Handle, | |
| OUT CONST CHAR8 **Token, | |
| OUT CONST CHAR8 **Module, | |
| OUT UINT64 *StartTimeStamp, | |
| OUT UINT64 *EndTimeStamp, | |
| OUT UINT32 *Identifier | |
| ) | |
| { | |
| ASSERT (Handle != NULL); | |
| ASSERT (Token != NULL); | |
| ASSERT (Module != NULL); | |
| ASSERT (StartTimeStamp != NULL); | |
| ASSERT (EndTimeStamp != NULL); | |
| ASSERT (Identifier != NULL); | |
| return 0; | |
| } | |
| /** | |
| Returns TRUE if the performance measurement macros are enabled. | |
| This function returns TRUE if the PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of | |
| PcdPerformanceLibraryPropertyMask is set. Otherwise FALSE is returned. | |
| @retval TRUE The PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of | |
| PcdPerformanceLibraryPropertyMask is set. | |
| @retval FALSE The PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of | |
| PcdPerformanceLibraryPropertyMask is clear. | |
| **/ | |
| BOOLEAN | |
| EFIAPI | |
| PerformanceMeasurementEnabled ( | |
| VOID | |
| ) | |
| { | |
| return (BOOLEAN)((PcdGet8 (PcdPerformanceLibraryPropertyMask) & PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED) != 0); | |
| } | |
| /** | |
| Create performance record with event description and a timestamp. | |
| @param CallerIdentifier - Image handle or pointer to caller ID GUID | |
| @param Guid - Pointer to a GUID | |
| @param String - Pointer to a string describing the measurement | |
| @param Address - Pointer to a location in memory relevant to the measurement | |
| @param Identifier - Performance identifier describing the type of measurement | |
| @retval RETURN_SUCCESS - Successfully created performance record | |
| @retval RETURN_OUT_OF_RESOURCES - Ran out of space to store the records | |
| @retval RETURN_INVALID_PARAMETER - Invalid parameter passed to function - NULL | |
| pointer or invalid PerfId | |
| **/ | |
| RETURN_STATUS | |
| EFIAPI | |
| LogPerformanceMeasurement ( | |
| IN CONST VOID *CallerIdentifier OPTIONAL, | |
| IN CONST VOID *Guid OPTIONAL, | |
| IN CONST CHAR8 *String OPTIONAL, | |
| IN UINT64 Address OPTIONAL, | |
| IN UINT32 Identifier | |
| ) | |
| { | |
| return RETURN_SUCCESS; | |
| } | |
| /** | |
| Check whether the specified performance measurement can be logged. | |
| This function returns TRUE when the PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of PcdPerformanceLibraryPropertyMask is set | |
| and the Type disable bit in PcdPerformanceLibraryPropertyMask is not set. | |
| @param Type - Type of the performance measurement entry. | |
| @retval TRUE The performance measurement can be logged. | |
| @retval FALSE The performance measurement can NOT be logged. | |
| **/ | |
| BOOLEAN | |
| EFIAPI | |
| LogPerformanceMeasurementEnabled ( | |
| IN CONST UINTN Type | |
| ) | |
| { | |
| // | |
| // When Performance measurement is enabled and the type is not filtered, the performance can be logged. | |
| // | |
| if (PerformanceMeasurementEnabled () && ((PcdGet8 (PcdPerformanceLibraryPropertyMask) & Type) == 0)) { | |
| return TRUE; | |
| } | |
| return FALSE; | |
| } |