/** @file

Performance measurement protocol, allows logging performance data.

Copyright (c) 2017, Microsoft Corporation<BR>
Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available under
the terms and conditions of the BSD License that accompanies this distribution.
The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

#ifndef _PERFORMANCE_MEASUREMENT_H_
#define _PERFORMANCE_MEASUREMENT_H_

//
// GUID for Performance measurement Protocol
//
#define PERFORMANCE_MEASUREMENT_PROTOCOL_GUID \
  { 0xc85d06be, 0x5f75, 0x48ce, {0xa8, 0x0f, 0x12, 0x36, 0xba, 0x3b, 0x87, 0xb1 } }

#define SMM_PERFORMANCE_MEASUREMENT_PROTOCOL_GUID \
  { 0xd56b6d73, 0x1a7b, 0x4015, {0x9b, 0xb4, 0x7b, 0x07, 0x17, 0x29, 0xed, 0x24 } }

typedef struct _EDKII_PERFORMANCE_MEASUREMENT_PROTOCOL EDKII_PERFORMANCE_MEASUREMENT_PROTOCOL;

typedef enum {
  PerfStartEntry,                        // used in StartPerformanceMeasurement()/StartPerformanceMeasurementEx()
                                         // (map to PERF_START/PERF_START_EX)
  PerfEndEntry,                          // used in EndPerformanceMeasurement()/EndPerformanceMeasurementEx()
                                         // (map to PERF_END/PERF_END_EX)
  PerfEntry                              // used in LogPerformanceMeasurement()
                                         // (map to other Perf macros except above 4 macros)
} PERF_MEASUREMENT_ATTRIBUTE;

/**
  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 TimeStamp         - 64-bit time stamp.
  @param Address           - Pointer to a location in memory relevant to the measurement.
  @param Identifier        - Performance identifier describing the type of measurement.
  @param Attribute         - The attribute of the measurement. According to attribute can create a start
                             record for PERF_START/PERF_START_EX, or a end record for PERF_END/PERF_END_EX,
                             or a general record for other Perf macros.

  @retval EFI_SUCCESS           - Successfully created performance record.
  @retval EFI_OUT_OF_RESOURCES  - Ran out of space to store the records.
  @retval EFI_INVALID_PARAMETER - Invalid parameter passed to function - NULL
                                  pointer or invalid PerfId.

**/
typedef
EFI_STATUS
(EFIAPI *CREATE_PERFORMANCE_MEASUREMENT)(
  IN CONST VOID                        *CallerIdentifier, OPTIONAL
  IN CONST VOID                        *Guid,     OPTIONAL
  IN CONST CHAR8                       *String,   OPTIONAL
  IN       UINT64                      TimeStamp, OPTIONAL
  IN       UINT64                      Address,   OPTIONAL
  IN       UINT32                      Identifier,
  IN       PERF_MEASUREMENT_ATTRIBUTE  Attribute
  );

struct _EDKII_PERFORMANCE_MEASUREMENT_PROTOCOL {
  CREATE_PERFORMANCE_MEASUREMENT CreatePerformanceMeasurement;
};

extern EFI_GUID gEdkiiPerformanceMeasurementProtocolGuid;
extern EFI_GUID gEdkiiSmmPerformanceMeasurementProtocolGuid;

#endif // _PERFORMANCE_MEASUREMENT_H_
