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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/import/chips/p9/procedures/hwp/memory/p9_mss_throttle_mem.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2015,2018 */
/* [+] 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_throttle_mem.C
/// @brief Write the runtime memory throttle settings from attributes to scom registers
///
// *HWP HWP Owner: Jacob Harvey <jlharvey@us.ibm.com>
// *HWP HWP Backup: Louis Stermole <stermole@us.ibm.com>
// *HWP Team: Memory
// *HWP Level: 3
// *HWP Consumed by: Cronus
#include <fapi2.H>
#include <p9_mss_throttle_mem.H>
#include <mss.H>
#include <lib/mc/mc.H>
using fapi2::TARGET_TYPE_MCS;
extern "C"
{
// TK:LRDIMM Update power/thermal/throttling
///
/// @brief Write the runtime memory throttle settings from attributes to scom registers
/// @param[in] i_target the controller target
/// @return FAPI2_RC_SUCCESS iff ok
/// @note overwriting the safemem_throttle values
///
fapi2::ReturnCode p9_mss_throttle_mem( const fapi2::Target<TARGET_TYPE_MCS>& i_target )
{
typedef mss::mcTraits<fapi2::TARGET_TYPE_MCA> TT;
FAPI_INF("Start throttle mem");
for (const auto& l_mca : mss::find_targets<fapi2::TARGET_TYPE_MCA> (i_target))
{
uint16_t l_runtime_port = 0;
uint16_t l_runtime_slot = 0;
uint32_t l_throttle_denominator = 0;
FAPI_TRY( mss::mem_m_dram_clocks( l_mca, l_throttle_denominator) );
FAPI_TRY( mss::runtime_mem_throttled_n_commands_per_port(l_mca, l_runtime_port));
FAPI_TRY( mss::runtime_mem_throttled_n_commands_per_slot(l_mca, l_runtime_slot));
fapi2::buffer<uint64_t> l_data;
FAPI_TRY(mss::getScom(l_mca, MCA_MBA_FARB3Q, l_data));
l_data.insertFromRight<TT::RUNTIME_N_SLOT, TT::RUNTIME_N_SLOT_LEN>(l_runtime_slot);
l_data.insertFromRight<TT::RUNTIME_N_PORT, TT::RUNTIME_N_PORT_LEN>(l_runtime_port);
FAPI_TRY( mss::putScom(l_mca, MCA_MBA_FARB3Q, l_data) );
}
FAPI_INF("End throttle mem");
return fapi2::FAPI2_RC_SUCCESS;
fapi_try_exit:
FAPI_ERR("Couldn't finish mss_throttle_mem");
return fapi2::current_err;
}
} // extern "C"
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