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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/fapi2/plat_spd_access.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2015,2019 */
/* [+] 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 plat_attribute_service.C
///
/// @brief Implements the specialized platform functions that access
/// attributes for FAPI2
///
#include <attribute_service.H>
#include <target_types.H>
#include <errl/errlentry.H>
#include <errl/errlmanager.H>
#include <fapi2_spd_access.H>
#include <vpd/spdenums.H>
#include <hwas/common/hwasCallout.H>
namespace fapi2
{
//******************************************************************************
// Function : getSPD()
// Return a blob of SPD data from a DIMM
//******************************************************************************
fapi2::ReturnCode getSPD(
const fapi2::Target<fapi2::TARGET_TYPE_DIMM>& i_pTarget,
uint8_t * o_blob,
size_t& o_size)
{
FAPI_DBG(ENTER_MRK "getSPD");
errlHndl_t l_errl = nullptr;
fapi2::ReturnCode l_rc;
TARGETING::Target* l_pTarget = nullptr;
do
{
l_errl = fapi2::platAttrSvc::getTargetingTarget(i_pTarget,
l_pTarget,
TARGETING::TYPE_DIMM);
if (l_errl)
{
FAPI_ERR("getSPD: Error from getTargetingTarget for TYPE_DIMM");
break;
}
// If the caller passed a nullptr for blob then
// return size of the SPD
if ( o_blob == nullptr )
{
// Get the DRAM generation from SPD
uint8_t l_memGen = 0x0;
size_t l_memSize = sizeof(l_memGen);
l_errl = deviceRead(l_pTarget,
static_cast<void *>(&l_memGen),
l_memSize,
DEVICE_SPD_ADDRESS(SPD::BASIC_MEMORY_TYPE));
if ( l_errl )
{
FAPI_ERR("getSPD: Error from deviceRead for BASIC_MEMORY_TYPE")
break;
}
switch(l_memGen)
{
case SPD::MEM_DDR3:
o_size = SPD::DDR3_SPD_SIZE;
break;
case SPD::MEM_DDR4:
{
uint8_t l_memModule = 0x0;
l_errl = deviceRead(l_pTarget,
static_cast<void *>(&l_memModule),
l_memSize,
DEVICE_SPD_ADDRESS(SPD::MODULE_TYPE));
if( l_errl )
{
FAPI_ERR("getSPD: Error on deviceRead for MODULE_TYPE");
break;
}
if( l_memModule == SPD::MEM_DDIMM )
{
// currently getSPD only supports the ENTIRE_SPD
// keyword. In the DDIMM case this include the EFD
// data so be sure to reflect that in the size we return.
o_size = SPD::OCMB_SPD_EFD_COMBINED_SIZE;
}
else
{
o_size = SPD::DDR4_SPD_SIZE;
}
}// case MEM_DDR4
break;
default:
{
FAPI_ERR("getSPD: Unsupported DIMM DDR Generation");
/*@
* @errortype
* @moduleid MOD_FAPI2_SPD_ACCESS
* @reasoncode RC_INVALID_SPD_DRAM_GEN
* @userdata1 DDR generation
* @userdata2 HUID of input target
* @devdesc Bad SPD or unsupported DIMM
* @custdesc Unsupported DIMM generation
*/
l_errl = new ERRORLOG::ErrlEntry(
ERRORLOG::ERRL_SEV_UNRECOVERABLE,
MOD_FAPI2_SPD_ACCESS,
RC_INVALID_SPD_DRAM_GEN,
TARGETING::get_huid(l_pTarget),
l_memGen );
l_errl->addHwCallout( l_pTarget,
HWAS::SRCI_PRIORITY_HIGH,
HWAS::DELAYED_DECONFIG,
HWAS::GARD_NULL );
}
break;
}// switch
FAPI_DBG("getSPD: Returning the size of the SPD :%d ", o_size);
}// endif
else
{
// Return the entire SPD blob
l_errl = deviceRead(l_pTarget,
o_blob,
o_size,
DEVICE_SPD_ADDRESS(SPD::ENTIRE_SPD));
}// end else
break;
} while(0);
if ( l_errl )
{
FAPI_ERR("getSPD: Error getting SPD data for HUID=0x%.8X Size %d",
TARGETING::get_huid(l_pTarget),o_size);
l_rc.setPlatDataPtr(reinterpret_cast<void *>(l_errl));
}
FAPI_DBG("getSPD: SPD data for HUID=0x%.8X Size %d Blob %d",
TARGETING::get_huid(l_pTarget),o_size,o_blob);
FAPI_DBG(EXIT_MRK "getSPD");
return l_rc;
}
} // End fapi2 namespace
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