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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/import/chips/p9/procedures/hwp/memory/p9_mss_freq_system.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2016,2019 */
/* [+] 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_freq_system.C
/// @brief Sets synchronous mode an
///
// *HWP HWP Owner: Andre A. Marin <aamarin@us.ibm.com>
// *HWP FW Owner: Jacob Harvey <jlharvey@us.ibm.com>
// *HWP Team: Memory
// *HWP Level: 3
// *HWP Consumed by: FSP:HB
#include <vector>
#include <map>
#include <fapi2.H>
#include <mss.H>
#include <p9_mss_freq_system.H>
#include <lib/utils/nimbus_find.H>
#include <generic/memory/lib/utils/count_dimm.H>
#include <lib/freq/sync.H>
using fapi2::TARGET_TYPE_SYSTEM;
using fapi2::TARGET_TYPE_PROC_CHIP;
using fapi2::TARGET_TYPE_MCBIST;
using fapi2::TARGET_TYPE_MCS;
extern "C"
{
///
/// @brief Set synchronous mode
/// @param[in] i_targets vector of controllers (e.g., MCS)
/// @return FAPI2_RC_SUCCESS iff ok
///
fapi2::ReturnCode p9_mss_freq_system( const std::vector< fapi2::Target<TARGET_TYPE_MCBIST> >& i_targets )
{
FAPI_INF("----- In p9_mss_freq_system ----");
// If there are no DIMM we don't need to bother. In fact, we can't as we didn't setup
// attributes for the PHY, etc. If there is even one DIMM on any of this list of MCBIST,
// we do the right thing.
uint64_t l_dimm_count = 0;
std::for_each( i_targets.begin(),
i_targets.end(),
[&l_dimm_count](const fapi2::Target<TARGET_TYPE_MCBIST>& i_target)
{
l_dimm_count += mss::count_dimm(i_target);
} );
if (l_dimm_count == 0)
{
FAPI_INF("... skipping freq_system - no DIMM ...");
return fapi2::FAPI2_RC_SUCCESS;
}
std::map< fapi2::Target<TARGET_TYPE_MCBIST>, uint64_t > l_freq_map;
uint32_t l_nest_freq = 0;
uint8_t l_required_sync_mode = 0;
uint8_t l_mc_in_sync = 0;
uint64_t l_selected_nest_freq = 0;
mss::speed_equality l_equal_dimm_speed;
// Get nest freq && F/W attr that tells me if sync mode is required
// or if I have to figure that out
FAPI_TRY( mss::required_synch_mode(l_required_sync_mode) );
FAPI_TRY( mss::freq_pb_mhz(l_nest_freq) );
FAPI_INF("Retrieved req'd sync mode: %d and nest freq %d", l_required_sync_mode, l_nest_freq);
// Populate dimm speed map
FAPI_TRY( mss::dimm_speed_map(i_targets, l_freq_map, l_equal_dimm_speed),
"Failed to get dimm speed mapping" );
FAPI_INF("Dimm speed for all MCBISTs are the same : %s",
uint8_t(l_equal_dimm_speed) ? "true" : "false");
// Select SYNCH mode
FAPI_TRY( mss::select_sync_mode(l_freq_map,
l_equal_dimm_speed,
l_nest_freq,
l_required_sync_mode,
l_mc_in_sync,
l_selected_nest_freq) );
FAPI_INF("Selected SYNC mode : %s",
(l_mc_in_sync == fapi2::ENUM_ATTR_MC_SYNC_MODE_IN_SYNC) ? "MC in sync" : "MC NOT in sync");
// Set attributes.
// set ATTR_FREQ_PB_MHZ based on sync logic
// set ATTR_MC_SYNC_MODE to 0 (not in sync) or 1 (in sync)
for(const auto& l_mcbist : i_targets)
{
// Convert from uint64_t to uint32_t for attribute macros
uint32_t l_pb_freq_value = l_selected_nest_freq;
const auto& l_proc_chip = mss::find_target<TARGET_TYPE_PROC_CHIP>(l_mcbist);
FAPI_INF("%s: Setting ATTR_MC_SYNC_MODE to %d", mss::c_str(l_mcbist), l_mc_in_sync);
FAPI_TRY( FAPI_ATTR_SET(fapi2::ATTR_MC_SYNC_MODE, l_proc_chip, l_mc_in_sync),
"Failed to set ATTR_MC_SYNC_MODE" );
if (l_mc_in_sync == fapi2::ENUM_ATTR_MC_SYNC_MODE_IN_SYNC)
{
FAPI_INF("%s: Setting ATTR_FREQ_PB_MHZ to %d", mss::c_str(l_mcbist), l_pb_freq_value);
FAPI_TRY( FAPI_ATTR_SET(fapi2::ATTR_FREQ_PB_MHZ, fapi2::Target<TARGET_TYPE_SYSTEM>(), l_pb_freq_value),
"Failed to set ATTR_FREQ_PB_MHZ" );
}
}
fapi_try_exit:
return fapi2::current_err;
} // p9_freq_system
} //extern "C"
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