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- /** @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;
- }
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