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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: chips/p9/procedures/hwp/memory/p9_mss_scrub.C $ */
/* */
/* IBM CONFIDENTIAL */
/* */
/* EKB Project */
/* */
/* COPYRIGHT 2015,2016 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* The source code for this program is not published or otherwise */
/* divested of its trade secrets, irrespective of what has been */
/* deposited with the U.S. Copyright Office. */
/* */
/* IBM_PROLOG_END_TAG */
///
/// @file p9_mss_scrub.C
/// @brief Begin background scrub
///
// *HWP HWP Owner: Brian Silver <bsilver@us.ibm.com>
// *HWP HWP Backup: Andre Marin <aamarin@us.ibm.com>
// *HWP Team: Memory
// *HWP Level: 1
// *HWP Consumed by: FSP:HB
#include <fapi2.H>
#include <p9_mss_scrub.H>
#include <lib/dimm/rank.H>
#include <lib/mcbist/address.H>
#include <lib/mcbist/mcbist.H>
#include <lib/mcbist/patterns.H>
#include <lib/mcbist/memdiags.H>
#include <lib/mcbist/sim.H>
#include <lib/utils/count_dimm.H>
using fapi2::TARGET_TYPE_MCBIST;
using fapi2::TARGET_TYPE_MCA;
using fapi2::TARGET_TYPE_SYSTEM;
using fapi2::FAPI2_RC_SUCCESS;
///
/// @brief Begin background scrub
/// @param[in] i_target MCBIST
/// @return FAPI2_RC_SUCCESS iff ok
///
fapi2::ReturnCode p9_mss_scrub( const fapi2::Target<TARGET_TYPE_MCBIST>& i_target )
{
FAPI_INF("Start mss scrub");
// If we're running in the simulator, we want to only touch the addresses which training touched
uint8_t is_sim = 0;
// 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 scrub for %s - no DIMM ...", mss::c_str(i_target));
return fapi2::FAPI2_RC_SUCCESS;
}
FAPI_TRY( FAPI_ATTR_GET(fapi2::ATTR_IS_SIMULATION, fapi2::Target<TARGET_TYPE_SYSTEM>(), is_sim) );
if (is_sim)
{
// Use some sort of pattern in sim in case the verification folks need to look for something
// TK. Need a verification pattern. This is a not-good pattern for verification ... We don't really
// have a good pattern for verification defined.
FAPI_INF("running mss sim init in place of scrub");
return mss::mcbist::sim::sf_init(i_target, mss::mcbist::PATTERN_2);
}
// TK do we want these to be arguments to the wrapper?
return memdiags::background_scrub(i_target, mss::mcbist::stop_conditions(),
mss::mcbist::speed::LUDICROUS, mss::mcbist::address());
fapi_try_exit:
return fapi2::current_err;
}
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