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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/import/chips/p9/procedures/hwp/memory/p9_mss_memdiag.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_memdiag.C
/// @brief Mainstore pattern testing
///
// *HWP HWP Owner: Brian Silver <bsilver@us.ibm.com>
// *HWP HWP Backup: Andre Marin <aamarin@us.ibm.com>
// *HWP Team: Memory
// *HWP Level: 2
// *HWP Consumed by: FSP:HB
#include <fapi2.H>
#include <p9_mss_memdiag.H>
#include <lib/utils/poll.H>
#include <lib/utils/count_dimm.H>
#include <lib/mcbist/address.H>
#include <lib/mcbist/memdiags.H>
#include <lib/mcbist/mcbist.H>
using fapi2::TARGET_TYPE_MCBIST;
using fapi2::TARGET_TYPE_SYSTEM;
extern "C"
{
///
/// @brief Pattern test the DRAM
/// @param[in] i_target the McBIST of the ports of the dram you're training
/// @return FAPI2_RC_SUCCESS iff ok
///
fapi2::ReturnCode p9_mss_memdiag( const fapi2::Target<TARGET_TYPE_MCBIST>& i_target )
{
FAPI_INF("Start memdiag");
// 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 (mss::count_dimm(i_target) == 0)
{
FAPI_INF("... skipping mem_diags %s - no DIMM ...", mss::c_str(i_target));
return fapi2::FAPI2_RC_SUCCESS;
}
uint8_t is_sim = false;
FAPI_TRY( FAPI_ATTR_GET(fapi2::ATTR_IS_SIMULATION, fapi2::Target<TARGET_TYPE_SYSTEM>(), is_sim) );
// We start the sf_init (write 0's) and it'll tickle the MCBIST complete FIR. PRD will see that
// and start a background scrub.
FAPI_TRY( memdiags::sf_init(i_target, mss::mcbist::PATTERN_0) );
// If we're in the sim, we want to poll for the FIR bit. I don't think this ever really happens
// unless we're expressly testing this API.
if (is_sim)
{
// Poll for the fir bit. We expect this to be set ...
fapi2::buffer<uint64_t> l_status;
// A small vector of addresses to poll during the polling loop
const std::vector<mss::poll_probe<fapi2::TARGET_TYPE_MCBIST>> l_probes =
{
{i_target, "mcbist current address", MCBIST_MCBMCATQ},
};
mss::poll_parameters l_poll_parameters;
bool l_poll_results = mss::poll(i_target, MCBIST_MCBISTFIRQ, l_poll_parameters,
[&l_status](const size_t poll_remaining,
const fapi2::buffer<uint64_t>& stat_reg) -> bool
{
FAPI_DBG("mcbist firq 0x%llx, remaining: %d", stat_reg, poll_remaining);
l_status = stat_reg;
return l_status.getBit<MCBIST_MCBISTFIRQ_MCBIST_PROGRAM_COMPLETE>() == true;
},
l_probes);
FAPI_ASSERT( l_poll_results == true,
fapi2::MSS_MEMDIAGS_SUPERFAST_INIT_FAILED_TO_INIT().set_TARGET(i_target),
"p9_mss_memdiags timedout %s", mss::c_str(i_target) );
}
fapi_try_exit:
FAPI_INF("End memdiag");
return fapi2::current_err;
}
}
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