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// IBM_PROLOG_BEGIN_TAG
// This is an automatically generated prolog.
//
// $Source: src/usr/hwpf/hwp/dimmBadDqBitmapFuncs.C $
//
// IBM CONFIDENTIAL
//
// COPYRIGHT International Business Machines Corp. 2012
//
// p1
//
// Object Code Only (OCO) source materials
// Licensed Internal Code Source Materials
// IBM HostBoot Licensed Internal Code
//
// The source code for this program is not published or other-
// wise divested of its trade secrets, irrespective of what has
// been deposited with the U.S. Copyright Office.
//
// Origin: 30
//
// IBM_PROLOG_END
/**
* @file dimmBadDqBitmapFuncs.C
*
* @brief FW Team Utility functions that accesses the Bad DQ Bitmap.
*/
/*
* Change Log ******************************************************************
* Flag Defect/Feature User Date Description
* ------ -------------- ---------- ----------- ----------------------------
* mjjones 02/17/2012 Created.
*/
#include <dimmBadDqBitmapFuncs.H>
#include <string.h>
extern "C"
{
// TODO
// For the dimmGetBadDqBitmap and dimmSetBadDqBitmap funcs, the original plan to
// get/set the bitmap was to get/set a HWPF attribute called ATTR_BAD_DQ_BITMAP.
// This would automatically call the dimmBadDqBitmapAccessHwp HWP which would
// access the ATTR_SPD_BAD_DQ_DATA HWPF attribute and decode the data. However,
// automatically bridging an attribute request to a HWP turns out to be
// difficult due to the fact that the FAPI_ATTR_GET macro returns a ReturnCode
// and the FAPI_EXEC_HWP macro takes a ReturnCode as parameter. For now call the
// HWP directly and revisit later
//------------------------------------------------------------------------------
// Utility function to check parameters and find a DIMM target
//------------------------------------------------------------------------------
fapi::ReturnCode dimmBadDqCheckParamFindDimm(const fapi::Target & i_mba,
const uint8_t i_port,
const uint8_t i_dimm,
const uint8_t i_rank,
fapi::Target & o_dimm)
{
fapi::ReturnCode l_rc;
if ((i_port >= DIMM_DQ_MAX_MBA_PORTS) ||
(i_dimm >= DIMM_DQ_MAX_MBAPORT_DIMMS) ||
(i_rank >= DIMM_DQ_MAX_DIMM_RANKS))
{
FAPI_ERR("dimmBadDqCheckParams: Bad parameter. %d:%d:%d", i_port,
i_dimm, i_rank);
const uint8_t & FFDC_PORT = i_port;
const uint8_t & FFDC_DIMM = i_dimm;
const uint8_t & FFDC_RANK = i_rank;
FAPI_SET_HWP_ERROR(l_rc, RC_BAD_DQ_DIMM_BAD_PARAM);
}
else
{
std::vector<fapi::Target> l_dimms;
// Get the functional DIMMs associated with the MBA chiplet
l_rc = fapiGetAssociatedDimms(i_mba, l_dimms);
if (l_rc)
{
FAPI_ERR("dimmBadDqFindDimm: Error from fapiGetAssociatedDimms");
}
else
{
// Find the DIMM with the correct MBA port/dimm
uint8_t i = 0;
uint8_t l_port = 0;
uint8_t l_dimm = 0;
for (; i < l_dimms.size(); i++)
{
l_rc = FAPI_ATTR_GET(ATTR_MBA_PORT, &(l_dimms[i]), l_port);
if (l_rc)
{
FAPI_ERR("dimmBadDqFindDimm: Error getting ATTR_MBA_PORT for dimm");
break;
}
else if (l_port == i_port)
{
l_rc = FAPI_ATTR_GET(ATTR_MBA_DIMM, &(l_dimms[i]), l_dimm);
if (l_rc)
{
FAPI_ERR("dimmBadDqFindDimm: Error getting ATTR_MBA_DIMM for dimm");
break;
}
else if (l_dimm == i_dimm)
{
o_dimm = l_dimms[i];
break;
}
}
}
if (!l_rc)
{
if (i == l_dimms.size())
{
FAPI_ERR("dimmBadDqFindDimm: Did not find DIMM for %s:%d:%d",
i_mba.toEcmdString(), i_port, i_dimm);
const fapi::Target & FFDC_MBA_TARGET = i_mba;
const uint8_t & FFDC_PORT = i_port;
const uint8_t & FFDC_DIMM = i_dimm;
FAPI_SET_HWP_ERROR(l_rc, RC_BAD_DQ_DIMM_NOT_FOUND);
}
}
}
}
return l_rc;
}
//------------------------------------------------------------------------------
fapi::ReturnCode dimmGetBadDqBitmap(const fapi::Target & i_mba,
const uint8_t i_port,
const uint8_t i_dimm,
const uint8_t i_rank,
uint8_t (&o_data)[DIMM_DQ_RANK_BITMAP_SIZE])
{
FAPI_INF(">>dimmGetBadDqBitmap. %s:%d:%d:%d", i_mba.toEcmdString(), i_port,
i_dimm, i_rank);
fapi::ReturnCode l_rc;
// Check parameters and find the DIMM Target
fapi::Target l_dimm;
l_rc = dimmBadDqCheckParamFindDimm(i_mba, i_port, i_dimm, i_rank, l_dimm);
if (!l_rc)
{
// Get the Bad DQ bitmap by calling the dimmBadDqBitmapAccessHwp HWP.
// Use a heap based array to avoid large stack alloc
uint8_t (&l_dqBitmap)[DIMM_DQ_MAX_DIMM_RANKS][DIMM_DQ_RANK_BITMAP_SIZE] =
*(reinterpret_cast<uint8_t(*)[DIMM_DQ_MAX_DIMM_RANKS][DIMM_DQ_RANK_BITMAP_SIZE]>
(new uint8_t[DIMM_DQ_MAX_DIMM_RANKS*DIMM_DQ_RANK_BITMAP_SIZE]));
FAPI_EXEC_HWP(l_rc, dimmBadDqBitmapAccessHwp, l_dimm, l_dqBitmap, true);
if (l_rc)
{
FAPI_ERR("dimmGetBadDqBitmap: Error from dimmBadDqBitmapAccessHwp");
}
else
{
memcpy(o_data, l_dqBitmap[i_rank], DIMM_DQ_RANK_BITMAP_SIZE);
}
delete [] &l_dqBitmap;
}
FAPI_INF("<<dimmGetBadDqBitmap");
return l_rc;
}
//------------------------------------------------------------------------------
fapi::ReturnCode dimmSetBadDqBitmap(
const fapi::Target & i_mba,
const uint8_t i_port,
const uint8_t i_dimm,
const uint8_t i_rank,
const uint8_t (&i_data)[DIMM_DQ_RANK_BITMAP_SIZE])
{
FAPI_INF(">>dimmSetBadDqBitmap. %s:%d:%d:%d", i_mba.toEcmdString(), i_port, i_dimm, i_rank);
fapi::ReturnCode l_rc;
// Check parameters and find the DIMM Target
fapi::Target l_dimm;
l_rc = dimmBadDqCheckParamFindDimm(i_mba, i_port, i_dimm, i_rank, l_dimm);
if (!l_rc)
{
// Get the Bad DQ bitmap by calling the dimmBadDqBitmapAccessHwp HWP.
// Use a heap based array to avoid large stack alloc
uint8_t (&l_dqBitmap)[DIMM_DQ_MAX_DIMM_RANKS][DIMM_DQ_RANK_BITMAP_SIZE] =
*(reinterpret_cast<uint8_t(*)[DIMM_DQ_MAX_DIMM_RANKS][DIMM_DQ_RANK_BITMAP_SIZE]>
(new uint8_t[DIMM_DQ_MAX_DIMM_RANKS*DIMM_DQ_RANK_BITMAP_SIZE]));
FAPI_EXEC_HWP(l_rc, dimmBadDqBitmapAccessHwp, l_dimm, l_dqBitmap, true);
if (l_rc)
{
FAPI_ERR("dimmSetBadDqBitmap: Error from dimmBadDqBitmapAccessHwp (get)");
}
else
{
// Add the rank bitmap to the DIMM bitmap and write the bitmap
memcpy(l_dqBitmap[i_rank], i_data, DIMM_DQ_RANK_BITMAP_SIZE);
FAPI_EXEC_HWP(l_rc, dimmBadDqBitmapAccessHwp, l_dimm, l_dqBitmap, false);
if (l_rc)
{
FAPI_ERR("dimmSetBadDqBitmap: Error from dimmBadDqBitmapAccessHwp (set)");
}
}
delete [] &l_dqBitmap;
}
FAPI_INF("<<dimmSetBadDqBitmap");
return l_rc;
}
} // extern "C"
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