//
// Copyright (c) 2009 Advanced Micro Devices, Inc. All rights reserved.
//

#ifndef __CL_PROFILE_AMD_H
#define __CL_PROFILE_AMD_H

#include "CL/cl_platform.h"

#ifdef __cplusplus
extern "C" {
#endif /*__cplusplus*/

typedef struct _cl_perfcounter_amd* cl_perfcounter_amd;
typedef cl_ulong cl_perfcounter_property;
typedef cl_uint cl_perfcounter_info;

/* cl_perfcounter_info */
enum PerfcounterInfo {
  CL_PERFCOUNTER_NONE = 0x0,
  CL_PERFCOUNTER_REFERENCE_COUNT = 0x1,
  CL_PERFCOUNTER_DATA = 0x2,
  CL_PERFCOUNTER_GPU_BLOCK_INDEX = 0x3,
  CL_PERFCOUNTER_GPU_COUNTER_INDEX = 0x4,
  CL_PERFCOUNTER_GPU_EVENT_INDEX = 0x5,
  CL_PERFCOUNTER_LAST
};

/*********************************
* Set device clock mode data
*********************************/
enum cl_DeviceClockMode_AMD {
  CL_DEVICE_CLOCK_MODE_DEFAULT_AMD = 0x0, /*Device clocks and other power settings are restored to default*/
  CL_DEVICE_CLOCK_MODE_QUERY_AMD = 0x1, /*Queries the current device clock ratios. Leaves the clock mode of the device unchanged*/
  CL_DEVICE_CLOCK_MODE_PROFILING_AMD = 0x2, /*Scale down from peak ratio*/
  CL_DEVICE_CLOCK_MODE_MINIMUMMEMORY_AMD = 0x3, /* Memory clock is set to the lowest available level*/
  CL_DEVICE_CLOCK_MODE_MINIMUMENGINE_AMD = 0x4, /*Engine clock is set to the lowest available level*/
  CL_DEVICE_CLOCK_MODE_PEAK_AMD = 0x5, /*Clocks set to maximum when possible. Fan set to maximum.*/
  CL_DEVICE_CLOCK_MODE_QUERYPROFILING_AMD = 0x6, /*Queries the profiling device clock ratios. Leaves the clock mode of the device unchanged*/
  CL_DEVICE_CLOCK_MODE_QUERYPEAK_AMD = 0x7, /*Queries the peak device clock ratios.Leaves the clock mode of the device unchanged*/
  CL_DEVICE_CLOCK_MODE_COUNT_AMD = 0x8, /*Maxmium count of device clock mode*/
};

typedef struct _cl_set_device_clock_mode_input_amd
{
  /* specify the clock mode for AMD GPU device*/
  cl_DeviceClockMode_AMD clock_mode;
} cl_set_device_clock_mode_input_amd;

typedef struct _cl_set_device_clock_mode_output_amd
{
  /*Ratio of current mem clock to peak clock as obtained from DeviceProperties::maxGpuClock*/
  cl_float memory_clock_ratio_to_peak;
  /*Ratio of current gpu core clock to peak clock as obtained from DeviceProperties::maxGpuClock*/
  cl_float engine_clock_ratio_to_peak;
} cl_set_device_clock_mode_output_amd;

/*! \brief Creates a new HW performance counter
 *   for the specified OpenCL context.
 *
 *  \param device must be a valid OpenCL device.
 *
 *  \param properties the list of properties of the hardware counter
 *
 *  \param errcode_ret  A non zero value if OpenCL failed to create PerfCounter
 *  - CL_SUCCESS if the function is executed successfully.
 *  - CL_INVALID_CONTEXT if the specified context is invalid.
 *  - CL_OUT_OF_RESOURCES if we couldn't create the object
 *
 *  \return the created perfcounter object
 */
extern CL_API_ENTRY cl_perfcounter_amd CL_API_CALL clCreatePerfCounterAMD(
    cl_device_id /* device */, cl_perfcounter_property* /* properties */, cl_int* /* errcode_ret */
    ) CL_API_SUFFIX__VERSION_1_0;

/*! \brief Destroy a performance counter object.
 *
 *  \param perf_counter the perfcounter object for release
 *
 *  \return A non zero value if OpenCL failed to release PerfCounter
 *  - CL_SUCCESS if the function is executed successfully.
 *  - CL_INVALID_OPERATION if we failed to release the object
 */
extern CL_API_ENTRY cl_int CL_API_CALL clReleasePerfCounterAMD(cl_perfcounter_amd /* perf_counter */
                                                               ) CL_API_SUFFIX__VERSION_1_0;

/*! \brief Increments the perfcounter object reference count.
 *
 *  \param perf_counter the perfcounter object for retain
 *
 *  \return A non zero value if OpenCL failed to retain PerfCounter
 *  - CL_SUCCESS if the function is executed successfully.
 *  - CL_INVALID_OPERATION if we failed to release the object
 */
extern CL_API_ENTRY cl_int CL_API_CALL clRetainPerfCounterAMD(cl_perfcounter_amd /* perf_counter */
                                                              ) CL_API_SUFFIX__VERSION_1_0;

/*! \brief Enqueues the begin command for the specified counters.
 *
 *  \param command_queue must be a valid OpenCL command queue.
 *
 *  \param num_perf_counters the number of perfcounter objects in the array.
 *
 *  \param perf_counters specifies an array of perfcounter objects.
 *
 *  \return A non zero value if OpenCL failed to release PerfCounter
 *  - CL_SUCCESS if the function is executed successfully.
 *  - CL_INVALID_OPERATION if we failed to enqueue the begin operation
 */
extern CL_API_ENTRY cl_int CL_API_CALL clEnqueueBeginPerfCounterAMD(
    cl_command_queue /* command_queue */, cl_uint /* num_perf_counters */,
    cl_perfcounter_amd* /* perf_counters */, cl_uint /* num_events_in_wait_list */,
    const cl_event* /* event_wait_list */, cl_event* /* event */
    ) CL_API_SUFFIX__VERSION_1_0;

/*! \brief Enqueues the end command for the specified counters.
 *
 *  \param command_queue must be a valid OpenCL command queue.
 *
 *  \param num_perf_counters the number of perfcounter objects in the array.
 *
 *  \param perf_counters specifies an array of perfcounter objects.
 *
 *  \param event the event object associated with the end operation.
 *
 *  \return A non zero value if OpenCL failed to release PerfCounter
 *  - CL_SUCCESS if the function is executed successfully.
 *  - CL_INVALID_OPERATION if we failed to enqueue the end operation
 */
extern CL_API_ENTRY cl_int CL_API_CALL clEnqueueEndPerfCounterAMD(
    cl_command_queue /* command_queue */, cl_uint /* num_perf_counters */,
    cl_perfcounter_amd* /* perf_counters */, cl_uint /* num_events_in_wait_list */,
    const cl_event* /* event_wait_list */, cl_event* /* event */
    ) CL_API_SUFFIX__VERSION_1_0;

/*! \brief Retrieves the results from the counter objects.
 *
 *  \param perf_counter specifies a perfcounter objects for query.
 *
 *  \param param_name specifies the information to query.
 *
 *  \param param_value is a pointer to memory where the appropriate result
 *  being queried is returned. If \a param_value is NULL, it is ignored.
 *
 *  \param param_value_size is used to specify the size in bytes of memory
 *  pointed to by \a param_value. This size must be >= size of return type.
 *
 *  \param param_value_size_ret returns the actual size in bytes of data copied
 *  to \a param_value. If \a param_value_size_ret is NULL, it is ignored.
 *
 *  \param values must be a valid pointer to an array of 64-bit values
 *  and the array size must be equal to num_perf_counters.
 *
 *  \return
 *  - CL_SUCCESS if the function is executed successfully.
 *  - CL_PROFILING_INFO_NOT_AVAILABLE if event isn't finished.
 *  - CL_INVALID_OPERATION if we failed to get the data
 */
extern CL_API_ENTRY cl_int CL_API_CALL clGetPerfCounterInfoAMD(
    cl_perfcounter_amd /* perf_counter */, cl_perfcounter_info /* param_name */,
    size_t /* param_value_size */, void* /* param_value */, size_t* /* param_value_size_ret */
    ) CL_API_SUFFIX__VERSION_1_0;

extern CL_API_ENTRY cl_int CL_API_CALL clSetDeviceClockModeAMD(
    cl_device_id /* device*/, cl_set_device_clock_mode_input_amd /* Clock_Mode_Input */,
    cl_set_device_clock_mode_output_amd* /* Clock_Mode_Output */
    ) CL_API_SUFFIX__VERSION_1_0;

#ifdef __cplusplus
} /*extern "C"*/
#endif /*__cplusplus*/

#endif /*__CL_PROFILE_AMD_H*/