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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/import/chips/ocmb/explorer/procedures/hwp/memory/lib/mcbist/exp_mcbist.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 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 exp_mcbist.C
/// @brief Run and manage the MCBIST engine
///
// *HWP HWP Owner: Stephen Glancy <sglancy@us.ibm.com>
// *HWP HWP Backup: Andre Marin <aamarin@us.ibm.com>
// *HWP Team: Memory
// *HWP Level: 3
// *HWP Consumed by: FSP:HB
#include <fapi2.H>
#include <lib/shared/exp_defaults.H>
#include <lib/shared/exp_consts.H>
#include <lib/mcbist/exp_mcbist.H>
#include <mss_explorer_attribute_getters.H>
#include <mss_explorer_attribute_setters.H>
#include <mss_generic_attribute_getters.H>
namespace mss
{
///
/// @brief Gets the attribute for freq
/// @param[in] const ref to the target
/// @param[out] uint64_t& reference to store the value
/// @return fapi2::ReturnCode - FAPI2_RC_SUCCESS iff get is OK
/// @note Frequency of this memory channel in MT/s (Mega Transfers per second)
///
template<>
fapi2::ReturnCode freq<mss::mc_type::EXPLORER, fapi2::TARGET_TYPE_OCMB_CHIP>(
const fapi2::Target<fapi2::TARGET_TYPE_OCMB_CHIP>& i_target,
uint64_t& o_value)
{
// Each OCMB only has one MEM_PORT
for (const auto l_port : mss::find_targets<fapi2::TARGET_TYPE_MEM_PORT>(i_target))
{
return attr::get_freq(l_port, o_value);
}
o_value = 0;
return ~fapi2::FAPI2_RC_SUCCESS;
}
const std::pair<uint64_t, uint64_t> mcbistTraits<mss::mc_type::EXPLORER>::address_pairs[] =
{
{ START_ADDRESS_0, END_ADDRESS_0 },
{ START_ADDRESS_1, END_ADDRESS_1 },
{ START_ADDRESS_2, END_ADDRESS_2 },
{ START_ADDRESS_3, END_ADDRESS_3 },
};
const std::vector< mss::mcbist::op_type > mcbistTraits<mss::mc_type::EXPLORER>::FIFO_MODE_REQUIRED_OP_TYPES =
{
mss::mcbist::op_type::WRITE ,
mss::mcbist::op_type::READ ,
mss::mcbist::op_type::READ_WRITE ,
mss::mcbist::op_type::WRITE_READ ,
mss::mcbist::op_type::READ_WRITE_READ ,
mss::mcbist::op_type::READ_WRITE_WRITE ,
mss::mcbist::op_type::RAND_SEQ ,
mss::mcbist::op_type::READ_READ_WRITE ,
};
namespace mcbist
{
///
/// @brief Get a list of ports involved in the program
/// Specialization for program<>
/// @param[in] i_target the target for this program
/// @return vector of port targets
///
template<>
std::vector<fapi2::Target<fapi2::TARGET_TYPE_MEM_PORT>>
program<>::get_port_list( const fapi2::Target<fapi2::TARGET_TYPE_OCMB_CHIP>& i_target ) const
{
return mss::find_targets<fapi2::TARGET_TYPE_MEM_PORT>(i_target);
}
///
/// @brief Configures broadcast mode, if it is needed
/// @param[in] i_target the target to effect
/// @param[in,out] io_program the mcbist::program
/// @return FAPI2_RC_SUCCSS iff ok
///
template<>
fapi2::ReturnCode configure_broadcast_mode(const fapi2::Target<fapi2::TARGET_TYPE_OCMB_CHIP>& i_target,
mcbist::program<mss::mc_type::EXPLORER>& io_program)
{
// No broadcast mode for explorer
return fapi2::FAPI2_RC_SUCCESS;
}
///
/// @brief Read entries from MCBIST Read Buffer (RB) array
/// Specialization for fapi2::TARGET_TYPE_MEM_PORT
/// @param[in] i_target the target to effect
/// @param[in] i_start_addr the array address to read first
/// @param[in] i_num_entries the number of array entries to read
/// @param[out] o_data vector of output data
/// @param[out] o_ecc_data vector of ecc data
/// @return FAPI2_RC_SUCCSS iff ok
///
template<>
fapi2::ReturnCode read_rb_array(const fapi2::Target<fapi2::TARGET_TYPE_MEM_PORT>& i_target,
const uint64_t i_start_addr,
const uint64_t i_num_entries,
std::vector< fapi2::buffer<uint64_t> >& o_data,
std::vector< fapi2::buffer<uint64_t> >& o_ecc_data)
{
using TT = mcbistTraits<DEFAULT_MC_TYPE, fapi2::TARGET_TYPE_OCMB_CHIP>;
fapi2::buffer<uint64_t> l_data;
uint64_t l_array_addr = i_start_addr;
const auto& l_ocmb = mss::find_target<fapi2::TARGET_TYPE_OCMB_CHIP>(i_target);
// Clear out any stale values from output vectors
o_data.clear();
o_ecc_data.clear();
for (uint8_t l_index = 0; l_index < i_num_entries; ++l_index)
{
fapi2::buffer<uint64_t> l_control_value;
// set start address
l_control_value.insertFromRight<TT::RB_ADDRESS, TT::RB_ADDRESS_LEN>(l_array_addr);
FAPI_INF("Setting the RB array access control register.");
FAPI_TRY( mss::putScom(l_ocmb, TT::RD_BUF_CTL_REG, l_control_value) );
// We setup the address to what we need it to be, so let's continue
FAPI_TRY( mss::getScom(i_target, TT::RD_BUF_DATA_REG, l_data) );
FAPI_INF("RB data index %d is: 0x%016lx", l_array_addr, l_data);
o_data.push_back(l_data);
// Need to read ecc register to increment array index
FAPI_TRY( mss::getScom(i_target, TT::RD_BUF_ECC_REG, l_data) );
o_ecc_data.push_back(l_data);
++l_array_addr;
// Array address automatically rolls over if we go beyond NUM_COMPARE_LOG_ENTRIES
if (l_array_addr >= TT::NUM_COMPARE_LOG_ENTRIES)
{
l_array_addr = 0;
}
}
fapi_try_exit:
return fapi2::current_err;
}
} // namespace mcbist
} // namespace mss
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