/*
 * Copyright (c) Advanced Micro Devices, Inc., or its affiliates.
 *
 * SPDX-License-Identifier: MIT
 */

#include "OCLStablePState.h"

#include <assert.h>
#include <stdio.h>
#include <string.h>

#include "CL/cl.h"
#include "CL/cl_ext.h"

cl_device_id gpu_device;

OCLStablePState::OCLStablePState() {
  _numSubTests = 1;
  failed_ = false;
}

OCLStablePState::~OCLStablePState() {}

void OCLStablePState::open(unsigned int test, char* units, double& conversion,
                           unsigned int deviceId) {
  cl_uint numPlatforms;
  cl_platform_id platform = NULL;
  cl_uint num_devices = 0;
  cl_device_id* devices = NULL;
  cl_device_id device = NULL;
  _deviceId = deviceId;

  if (type_ != CL_DEVICE_TYPE_GPU) {
    error_ = CL_DEVICE_NOT_FOUND;
    printf("GPU device is required for this test!\n");
    return;
  }

  error_ = _wrapper->clGetPlatformIDs(0, NULL, &numPlatforms);
  CHECK_RESULT(error_ != CL_SUCCESS, "clGetPlatformIDs failed");
  if (0 < numPlatforms) {
    cl_platform_id* platforms = new cl_platform_id[numPlatforms];
    error_ = _wrapper->clGetPlatformIDs(numPlatforms, platforms, NULL);
    CHECK_RESULT(error_ != CL_SUCCESS, "clGetPlatformIDs failed");
#if 0
    // Get last for default
    platform = platforms[numPlatforms - 1];
    for (unsigned i = 0; i < numPlatforms; ++i) {
#endif
    platform = platforms[_platformIndex];
    char pbuf[100];
    error_ = _wrapper->clGetPlatformInfo(platforms[_platformIndex], CL_PLATFORM_VENDOR,
                                         sizeof(pbuf), pbuf, NULL);
    num_devices = 0;
    /* Get the number of requested devices */
    error_ = _wrapper->clGetDeviceIDs(platforms[_platformIndex], type_, 0, NULL, &num_devices);
#if 0
    }
#endif
    delete platforms;
  }
  /*
   * If we could find our platform, use it. If not, die as we need the AMD
   * platform for these extensions.
   */
  CHECK_RESULT(platform == 0, "Couldn't find platform with GPU devices, cannot proceed");

  devices = (cl_device_id*)malloc(num_devices * sizeof(cl_device_id));
  CHECK_RESULT(devices == 0, "no devices");

  /* Get the requested device */
  error_ = _wrapper->clGetDeviceIDs(platform, type_, num_devices, devices, NULL);
  CHECK_RESULT(error_ != CL_SUCCESS, "clGetDeviceIDs failed");

  CHECK_RESULT(_deviceId >= num_devices, "Requested deviceID not available");
  device = devices[_deviceId];
  gpu_device = device;
}

static void CL_CALLBACK notify_callback(cl_event event, cl_int event_command_exec_status,
                                        void* user_data) {}

void OCLStablePState::run(void) {
  if (failed_) {
    return;
  }
  cl_set_device_clock_mode_input_amd setClockModeInput;
  setClockModeInput.clock_mode = CL_DEVICE_CLOCK_MODE_PROFILING_AMD;
  cl_set_device_clock_mode_output_amd setClockModeOutput = {};
  error_ = _wrapper->clSetDeviceClockModeAMD(gpu_device, setClockModeInput, &setClockModeOutput);
#ifdef _WIN32
  CHECK_RESULT(error_ != CL_SUCCESS, "SetClockMode profiling failed\n");
#else
  error_ = CL_SUCCESS;
#endif

  setClockModeInput.clock_mode = CL_DEVICE_CLOCK_MODE_DEFAULT_AMD;
  setClockModeOutput = {};
  error_ = _wrapper->clSetDeviceClockModeAMD(gpu_device, setClockModeInput, &setClockModeOutput);
#ifdef _WIN32
  CHECK_RESULT(error_ != CL_SUCCESS, "SetClockMode default failed\n");
#else
  error_ = CL_SUCCESS;
#endif
}

unsigned int OCLStablePState::close(void) { return OCLTestImp::close(); }