git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524
		
			
				
	
	
		
			167 lines
		
	
	
		
			6.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			167 lines
		
	
	
		
			6.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*++
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| 
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| Copyright (c) 2006, Intel Corporation                                                         
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| All rights reserved. This program and the accompanying materials                          
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| are licensed and made available under the terms and conditions of the BSD License         
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| which accompanies this distribution.  The full text of the license may be found at        
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| http://opensource.org/licenses/bsd-license.php                                            
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|                                                                                           
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| THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
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| WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
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| 
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| Module Name:
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| 
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|   Performance.h
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| 
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| Abstract:
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| 
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|   
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| --*/
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| 
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| #ifndef __PERFORMANCE_H_
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| #define __PERFORMANCE_H_
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| 
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| #define PERFORMANCE_PROTOCOL_GUID \
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|   { 0x76b6bdfa, 0x2acd, 0x4462, {0x9E, 0x3F, 0xcb, 0x58, 0xC9, 0x69, 0xd9, 0x37 } }
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| 
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| //
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| // Forward reference for pure ANSI compatability
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| //
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| typedef struct _PERFORMANCE_PROTOCOL PERFORMANCE_PROTOCOL;
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| 
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| #define DXE_TOK                         "DXE"
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| #define SHELL_TOK                       "SHELL"
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| #define PEI_TOK                         "PEI"
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| #define BDS_TOK                         "BDS"
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| #define DRIVERBINDING_START_TOK         "DriverBinding:Start"
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| #define DRIVERBINDING_SUPPORT_TOK       "DriverBinding:Support"
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| #define START_IMAGE_TOK                 "StartImage"
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| #define LOAD_IMAGE_TOK                  "LoadImage"
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| 
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| //
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| // DXE_PERFORMANCE_STRING_SIZE must be a multiple of 8.
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| //
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| #define DXE_PERFORMANCE_STRING_SIZE     32
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| #define DXE_PERFORMANCE_STRING_LENGTH   (DXE_PERFORMANCE_STRING_SIZE - 1)
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| 
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| //
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| // The default guage entries number for DXE phase.
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| //
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| #define INIT_DXE_GAUGE_DATA_ENTRIES     800
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| 
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| typedef struct {
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|   EFI_PHYSICAL_ADDRESS  Handle; 
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|   CHAR8                 Token[DXE_PERFORMANCE_STRING_SIZE];
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|   CHAR8                 Module[DXE_PERFORMANCE_STRING_SIZE];
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|   UINT64                StartTimeStamp;
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|   UINT64                EndTimeStamp;
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| } GAUGE_DATA_ENTRY;
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| 
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| //
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| // The header must be aligned at 8 bytes
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| // 
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| typedef struct {
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|   UINT32                NumberOfEntries;
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|   UINT32                Reserved;
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| } GAUGE_DATA_HEADER;
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| 
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| /**
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|   Adds a record at the end of the performance measurement log
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|   that records the start time of a performance measurement.
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| 
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|   Adds a record to the end of the performance measurement log
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|   that contains the Handle, Token, and Module.
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|   The end time of the new record must be set to zero.
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|   If TimeStamp is not zero, then TimeStamp is used to fill in the start time in the record.
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|   If TimeStamp is zero, the start time in the record is filled in with the value
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|   read from the current time stamp. 
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| 
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|   @param  Handle                  Pointer to environment specific context used
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|                                   to identify the component being measured.
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|   @param  Token                   Pointer to a Null-terminated ASCII string
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|                                   that identifies the component being measured.
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|   @param  Module                  Pointer to a Null-terminated ASCII string
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|                                   that identifies the module being measured.
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|   @param  TimeStamp               64-bit time stamp.
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| 
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|   @retval EFI_SUCCESS             The data was read correctly from the device.
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|   @retval EFI_OUT_OF_RESOURCES    There are not enough resources to record the measurement.
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| 
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| **/
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| typedef 
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| EFI_STATUS
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| (EFIAPI * PERFORMANCE_START_GAUGE) (
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|   IN CONST VOID   *Handle,  OPTIONAL
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|   IN CONST CHAR8  *Token,   OPTIONAL
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|   IN CONST CHAR8  *Module,  OPTIONAL
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|   IN UINT64       TimeStamp
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|   );
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| 
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| /**
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|   Searches the performance measurement log from the beginning of the log
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|   for the first matching record that contains a zero end time and fills in a valid end time. 
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|   
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|   Searches the performance measurement log from the beginning of the log
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|   for the first record that matches Handle, Token, and Module and has an end time value of zero.
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|   If the record can not be found then return EFI_NOT_FOUND.
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|   If the record is found and TimeStamp is not zero,
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|   then the end time in the record is filled in with the value specified by TimeStamp.
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|   If the record is found and TimeStamp is zero, then the end time in the matching record
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|   is filled in with the current time stamp value.
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| 
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|   @param  Handle                  Pointer to environment specific context used
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|                                   to identify the component being measured.
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|   @param  Token                   Pointer to a Null-terminated ASCII string
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|                                   that identifies the component being measured.
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|   @param  Module                  Pointer to a Null-terminated ASCII string
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|                                   that identifies the module being measured.
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|   @param  TimeStamp               64-bit time stamp.
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| 
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|   @retval EFI_SUCCESS             The end of  the measurement was recorded.
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|   @retval EFI_NOT_FOUND           The specified measurement record could not be found.
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| 
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| **/
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| typedef 
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| EFI_STATUS
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| (EFIAPI * PERFORMANCE_END_GAUGE) (
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|   IN CONST VOID   *Handle,  OPTIONAL
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|   IN CONST CHAR8  *Token,   OPTIONAL
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|   IN CONST CHAR8  *Module,  OPTIONAL
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|   IN UINT64       TimeStamp
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|   );
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| 
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| /**
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|   Retrieves a previously logged performance measurement. 
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|   
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|   Retrieves the performance log entry from the performance log specified by LogEntryKey.
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|   If it stands for a valid entry, then EFI_SUCCESS is returned and
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|   GaugeDataEntry stores the pointer to that entry.
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| 
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|   @param  LogEntryKey             The key for the previous performance measurement log entry.
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|                                   If 0, then the first performance measurement log entry is retrieved.
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|   @param  GaugeDataEntry          The indirect pointer to the gauge data entry specified by LogEntryKey
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|                                   if the retrieval is successful.
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| 
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|   @retval EFI_SUCCESS             The GuageDataEntry is successfuly found based on LogEntryKey.
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|   @retval EFI_NOT_FOUND           The LogEntryKey is the last entry (equals to the total entry number).
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|   @retval EFI_INVALIDE_PARAMETER  The LogEntryKey is not a valid entry (greater than the total entry number).
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|   @retval EFI_INVALIDE_PARAMETER  GaugeDataEntry is NULL. 
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| 
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| **/
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| typedef 
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| EFI_STATUS
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| (EFIAPI * PERFORMANCE_GET_GAUGE) (
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|   IN  UINTN               LogEntryKey,
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|   OUT GAUGE_DATA_ENTRY    **GaugeDataEntry
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|   );
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| 
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| struct _PERFORMANCE_PROTOCOL {
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|   PERFORMANCE_START_GAUGE             StartGauge;
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|   PERFORMANCE_END_GAUGE               EndGauge;
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|   PERFORMANCE_GET_GAUGE               GetGauge;
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| };
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| 
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| extern EFI_GUID gPerformanceProtocolGuid;
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| 
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| #endif
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