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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/import/chips/p9/procedures/hwp/memory/p9_mss_bulk_pwr_throttles.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2015,2017 */
/* [+] 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 p9_mss_bulk_pwr_throttles.C
/// @brief Set the throttle attributes based on a power limit for the dimms on the channel pair
///
// *HWP HWP Owner: Jacob Harvey <jlharvey@us.ibm.com>
// *HWP HWP Backup: Andre A. Marin <aamarin@us.ibm.com>
// *HWP Team: Memory
// *HWP Level: 3
// *HWP Consumed by: FSP:HB
#include <vector>
#include <mss.H>
#include <fapi2.H>
#include <p9_mss_bulk_pwr_throttles.H>
#include <lib/utils/find.H>
#include <lib/utils/count_dimm.H>
#include <lib/power_thermal/throttle.H>
using fapi2::TARGET_TYPE_MCS;
using fapi2::TARGET_TYPE_MCA;
using fapi2::TARGET_TYPE_DIMM;
extern "C"
{
///
/// @brief Set ATTR_MSS_PORT_MAXPOWER, ATTR_MSS_MEM_THROTTLED_N_COMMANDS_PER_SLOT, ATTR_MSS_MEM_THROTTLED_N_COMMANDS_PER_PORT
/// @param[in] i_targets vector of MCS's on the same VDDR domain
/// @param[in] i_throttle_type thermal boolean to determine whether to calculate throttles based on the power regulator or thermal limits
/// @return fapi2::ReturnCode - FAPI2_RC_SUCCESS iff get is OK
/// @note Called in p9_mss_bulk_pwr_throttles
/// @note determines the throttle levels based off of the port's power curve,
/// sets the slot throttles to the same
/// @note Enums are POWER for power egulator throttles and THERMAL for thermal throttles
/// @note equalizes the throttles to the lowest of runtime and the lowest slot-throttle value
///
fapi2::ReturnCode p9_mss_bulk_pwr_throttles( const std::vector< fapi2::Target<TARGET_TYPE_MCS> >& i_targets,
const throttle_type i_throttle_type)
{
FAPI_INF("Start p9_mss_bulk_pwr_throttles for %s type throttling",
(( i_throttle_type == THERMAL) ? "THERMAL" : "POWER"));
fapi2::ReturnCode l_rc;
for ( const auto& l_mcs : i_targets)
{
uint16_t l_slot [mss::PORTS_PER_MCS] = {};
uint16_t l_port [mss::PORTS_PER_MCS] = {};
uint32_t l_power [mss::PORTS_PER_MCS] = {};
for (const auto& l_mca : mss::find_targets<TARGET_TYPE_MCA>(l_mcs))
{
//Don't run if there are no dimms on the port
if (mss::count_dimm(l_mca) == 0)
{
continue;
}
const uint8_t l_pos = mss::index(l_mca);
mss::power_thermal::throttle l_pwr_struct(l_mca, l_rc);
FAPI_TRY(l_rc, "Error constructing mss:power_thermal::throttle object for target %s",
mss::c_str(l_mca));
//Let's do the actual work now
if ( i_throttle_type == THERMAL)
{
FAPI_TRY (l_pwr_struct.thermal_throttles());
}
else
{
FAPI_TRY (l_pwr_struct.power_regulator_throttles());
}
l_slot[l_pos] = l_pwr_struct.iv_n_slot;
l_port[l_pos] = l_pwr_struct.iv_n_port;
l_power[l_pos] = l_pwr_struct.iv_calc_port_maxpower;
FAPI_INF("For target %s Calculated power is %d, throttle per slot is %d, throttle per port is %d",
mss::c_str(l_mca), l_power[l_pos], l_slot[l_pos], l_port[l_pos]);
}
FAPI_TRY(FAPI_ATTR_SET( fapi2::ATTR_MSS_PORT_MAXPOWER, l_mcs, l_power));
FAPI_TRY(FAPI_ATTR_SET( fapi2::ATTR_MSS_MEM_THROTTLED_N_COMMANDS_PER_SLOT, l_mcs, l_slot));
FAPI_TRY(FAPI_ATTR_SET( fapi2::ATTR_MSS_MEM_THROTTLED_N_COMMANDS_PER_PORT, l_mcs, l_port));
}
//Set all of the throttles to the lowest value per port for performance reasons
FAPI_TRY(mss::power_thermal::equalize_throttles(i_targets));
FAPI_INF("End bulk_pwr_throttles");
return l_rc;
fapi_try_exit:
FAPI_ERR("Error calculating bulk_pwr_throttles using %s throttling",
((i_throttle_type == POWER) ? "power" : "thermal"));
return l_rc;
}
} //extern C
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