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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/occ_405/amec/amec_perfcount.c $ */
/* */
/* OpenPOWER OnChipController Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2011,2016 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
/*----------------------------------------------------------------------------*/
/* Includes */
/*----------------------------------------------------------------------------*/
#include <string.h>
#include <common_types.h>
#include <sensor.h>
#include <amec_sys.h>
#include <amec_part.h>
#include <amec_perfcount.h>
/*----------------------------------------------------------------------------*/
/* Constants */
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
/* Globals */
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
/* Typedef / Enum */
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
/* Code */
/*----------------------------------------------------------------------------*/
// Function Specification
//
// Name: amec_calc_dps_util_counters
//
// Description: Calculate the performance counter for a core.
//
// End Function Specification
void amec_calc_dps_util_counters(const uint8_t i_core_id)
{
/*------------------------------------------------------------------------*/
/* Local Variables */
/*------------------------------------------------------------------------*/
amec_part_t *l_part = NULL;
amec_core_perf_counter_t *l_perf = NULL;
sensor_ptr_t l_sensor = NULL;
uint16_t l_utilization = 0;
/*------------------------------------------------------------------------*/
/* Code */
/*------------------------------------------------------------------------*/
l_perf = &g_amec->proc[0].core[i_core_id].core_perf;
// Read sensor for this core
l_sensor = AMECSENSOR_ARRAY_PTR(UTILC0, i_core_id);
l_utilization = l_sensor->sample;
l_part = amec_part_find_by_core(&g_amec->part_config, i_core_id);
// Type 41 input: Check if core's utilization is within
// epsilon of the slack threshold: if yes declare the core
// active
if (l_part != NULL)
{
if (l_utilization > (l_part->dpsalg.tlutil - l_part->dpsalg.epsilon_perc))
{
// indicate core is active
l_perf->util_active_core_counter++;
if (l_utilization < l_part->dpsalg.tlutil)
{
// indicate core has some slack
l_perf->util_slack_core_counter++;
}
}
}
}
// Function Specification
//
// Name: amec_core_perf_counter_ctor
//
// Description: Build the performance counter for a core.
//
// End Function Specification
amec_core_perf_counter_t* amec_core_perf_counter_ctor(amec_core_perf_counter_t* i_this_ptr,
const uint8_t i_proc_id,
const uint8_t i_core_id)
{
/*------------------------------------------------------------------------*/
/* Local Variables */
/*------------------------------------------------------------------------*/
/*------------------------------------------------------------------------*/
/* Code */
/*------------------------------------------------------------------------*/
//zero everything out, regardless of when we were called
memset(i_this_ptr, 0x00, sizeof(amec_core_perf_counter_t));
// Create space for per-core active and slack counts (for DPS #41 algorithm)
memset(i_this_ptr->ptr_util_slack_avg_buffer, 0,
(uint32_t)(2*MAX_UTIL_SLACK_AVG_LEN));
memset(i_this_ptr->ptr_util_active_avg_buffer, 0,
(uint32_t)(2*MAX_UTIL_SLACK_AVG_LEN));
// DPS frequency request. Choose highest performance by default.
i_this_ptr->dps_freq_request = UINT16_MAX; // input to core freq voting box
//pass out i_this_ptr in case we're allocating this dynamically
return i_this_ptr;
}
/*----------------------------------------------------------------------------*/
/* End */
/*----------------------------------------------------------------------------*/
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