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exp_mss_eff_config_thermal.C
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exp_mss_eff_config_thermal.C
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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/import/chips/ocmb/explorer/procedures/hwp/memory/exp_mss_eff_config_thermal.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2019,2020 */
/* [+] 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 */
///
/// @file exp_mss_eff_config_thermal.C
/// @brief The explorer thermal/power config
///
// *HWP HWP Owner: Andre Marin <aamarin@us.ibm.com>
// *HWP HWP Backup: Stephen Glancy <sglancy@us.ibm.com>
// *HWP Team: Memory
// *HWP Level: 3
// *HWP Consumed by: Memory
#include <lib/shared/exp_defaults.H>
#include <fapi2.H>
#include <vector>
#include <exp_bulk_pwr_throttles.H>
#include <exp_mss_eff_config_thermal.H>
#include <lib/power_thermal/exp_decoder.H>
#include <lib/power_thermal/exp_throttle.H>
#include <lib/shared/exp_consts.H>
#include <mss_explorer_attribute_getters.H>
#include <mss_explorer_attribute_setters.H>
#include <generic/memory/lib/utils/shared/mss_generic_consts.H>
#include <generic/memory/lib/utils/dimm/kind.H>
#include <generic/memory/lib/utils/count_dimm.H>
#include <generic/memory/lib/mss_generic_attribute_getters.H>
#include <generic/memory/lib/mss_generic_system_attribute_getters.H>
extern "C"
{
///
/// @brief Perform thermal calculations
/// @param[in] i_targets vector of OCMB chip
/// @return FAPI2_RC_SUCCESS iff ok
fapi2::ReturnCode exp_mss_eff_config_thermal( const std::vector< fapi2::Target<fapi2::TARGET_TYPE_OCMB_CHIP> >&
i_targets )
{
using TT = mss::power_thermal::throttle_traits<>;
fapi2::ReturnCode l_rc = fapi2::FAPI2_RC_SUCCESS;
FAPI_INF("Start exp_mss_eff_config_thermal");
// For regulaor power/current throttling or thermal throtling
// Do thermal throttling last so the attributes end up representing a total power value for later usage
// Need to have ATTR_EXP_TOTAL_PWR_SLOPE and ATTR_EXP_TOTAL_PWR_INTERCEPT with total DIMM power
// (not regulator current values) after exp_mss_eff_config_thermal is run, so when OCC calls
// exp_bulk_pwr_throttles at runtime the total DIMM power will be used for any memory bulk supply throttling
const std::vector<mss::throttle_type> throttle_types{ mss::throttle_type::POWER, mss::throttle_type::THERMAL};
// Return error if safemode throttle utilization is less than MIN_UTIL
const uint64_t l_min_util = TT::MIN_UTIL;
uint32_t l_safemode_util = 0;
FAPI_TRY( mss::attr::get_mrw_safemode_dram_databus_util(l_safemode_util), "Error in exp_mss_eff_config_thermal" );
FAPI_ASSERT( l_safemode_util >= TT::MIN_UTIL,
fapi2::MSS_MRW_SAFEMODE_UTIL_THROTTLE_NOT_SUPPORTED()
.set_MRW_SAFEMODE_UTIL(l_safemode_util)
.set_MIN_UTIL_VALUE(l_min_util),
"MRW safemode util (%d centi percent) has less util than the min util allowed (%d centi percent)",
l_safemode_util, l_min_util );
for ( const auto& l_ocmb : i_targets)
{
//Restore runtime_throttles
//Sets throttles to max_databus_util value
FAPI_INF("Restoring throttles for %s", mss::c_str(l_ocmb));
FAPI_TRY( mss::power_thermal::restore_runtime_throttles<>(l_ocmb), "Error in exp_mss_eff_config_thermal");
}
for (const auto& l_throttle_type : throttle_types )
{
for ( const auto& l_ocmb : i_targets)
{
//Not doing any work if there are no dimms installed
if (mss::count_dimm(l_ocmb) == 0)
{
FAPI_INF("Skipping eff_config thermal because no dimms for %s", mss::c_str(l_ocmb));
continue;
}
// Thermal power (OCMB+DRAM)
uint64_t l_thermal_power_limit[TT::SIZE_OF_THERMAL_LIMIT_ATTR] = {0};
uint64_t l_thermal_power_slope[TT::SIZE_OF_THERMAL_SLOPE_ATTR] = {0};
uint64_t l_thermal_power_intecept[TT::SIZE_OF_THERMAL_INTERCEPT_ATTR] = {0};
// Power (PMIC)
uint64_t l_current_curve_with_limit[TT::SIZE_OF_CURRENT_CURVE_WITH_LIMIT_ATTR] = {0};
// Get the data from MRW
FAPI_TRY( mss::attr::get_mrw_ocmb_thermal_memory_power_limit (l_thermal_power_limit),
"Error in exp_mss_eff_config_thermal");
FAPI_TRY( mss::attr::get_mrw_ocmb_pwr_slope (l_thermal_power_slope), "Error in exp_mss_eff_config_thermal");
FAPI_TRY( mss::attr::get_mrw_ocmb_pwr_intercept (l_thermal_power_intecept), "Error in exp_mss_eff_config_thermal");
FAPI_TRY( mss::attr::get_mrw_ocmb_current_curve_with_limit (l_current_curve_with_limit),
"Error in exp_mss_eff_config_thermal");
// Convert array to vector
std::vector<uint64_t> l_thermal_power_limit_v ( std::begin(l_thermal_power_limit),
std::end(l_thermal_power_limit) );
std::vector<uint64_t> l_thermal_power_slope_v ( std::begin(l_thermal_power_slope),
std::end(l_thermal_power_slope) );
std::vector<uint64_t> l_thermal_power_intecept_v ( std::begin(l_thermal_power_intecept),
std::end(l_thermal_power_intecept) );
std::vector<uint64_t> l_current_curve_with_limit_v( std::begin(l_current_curve_with_limit),
std::end(l_current_curve_with_limit) );
uint16_t l_slope [TT::DIMMS_PER_PORT] = {0};
uint16_t l_intercept[TT::DIMMS_PER_PORT] = {0};
uint32_t l_limit [TT::DIMMS_PER_PORT] = {0};
for (const auto& l_port : mss::find_targets<fapi2::TARGET_TYPE_MEM_PORT>(l_ocmb))
{
//Don't run if there are no dimms on the port
if (mss::count_dimm(l_port) == 0)
{
continue;
}
// Set the thermal power throttle
//Set the PMIC current slope, intercept and limit
FAPI_TRY( mss::power_thermal::get_power_attrs (l_throttle_type,
l_port,
l_thermal_power_slope_v,
l_thermal_power_intecept_v,
l_thermal_power_limit_v,
l_current_curve_with_limit_v,
l_slope,
l_intercept,
l_limit) );
FAPI_TRY(mss::attr::set_total_pwr_slope(l_port, l_slope));
FAPI_TRY(mss::attr::set_total_pwr_intercept(l_port, l_intercept));
FAPI_TRY(mss::attr::set_dimm_thermal_limit(l_port, l_limit));
FAPI_TRY(mss::attr::set_mem_watt_target(l_port, l_limit));
for ( const auto& l_dimm : mss::find_targets<fapi2::TARGET_TYPE_DIMM>(l_port) )
{
const uint8_t l_dimm_pos = mss::index(l_dimm);
FAPI_INF( "DIMM (%d) slope is %d, intercept is %d, limit is %d for %s",
l_dimm_pos, l_slope[l_dimm_pos], l_intercept[l_dimm_pos],
l_limit[l_dimm_pos], mss::c_str(l_port));
}
}
FAPI_INF("Starting pwr_throttles(%s)", mss::throttle_type::POWER == l_throttle_type ? "POWER" : "THERMAL");
//get the power limits, done per dimm and set to worst case for the slot and port throttles
FAPI_TRY(mss::power_thermal::pwr_throttles(l_ocmb, l_throttle_type));
}
// Equalizes the throttles to the lowest of runtime and the lowest slot-throttle value
FAPI_TRY(mss::power_thermal::equalize_throttles(i_targets, l_throttle_type));
for ( const auto& l_ocmb : i_targets)
{
//Set runtime throttles to worst case between ATTR_EXP_MEM_THROTTLED_N_COMMANDS_PER_SLOT
//and ATTR_EXP_MEM_RUNTIME_THROTTLED_N_COMMANDS_PER_SLOT and the _PORT equivalents also
FAPI_TRY( mss::power_thermal::update_runtime_throttle(l_ocmb), "Error in exp_mss_eff_config_thermal for %d",
mss::c_str(l_ocmb));
}
}
//Done
FAPI_INF( "End exp_mss_eff_config_thermal");
fapi_try_exit:
return fapi2::current_err;
}
} //extern C