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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/diag/prdf/occ_firdata/prdfReadPnorFirData.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2015,2018 */
/* [+] 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 */
#include <prdfReadPnorFirData.H>
#include <pnorData_common.h>
#include <prdfPlatServices.H>
#include <prdfTrace.H>
#include <pnor/pnorif.H>
#include <prdfErrlUtil.H>
using namespace TARGETING;
namespace PRDF
{
using namespace PlatServices;
class FirData
{
public:
/** @brief Constructor
* @param i_pBuf Pointer to the PNOR data buffer
* @param i_maxPBufSize Maximum size of the PNOR data buffer
*/
FirData( uint8_t * i_pBuf, size_t i_maxPBufSize ) :
iv_pBuf(i_pBuf), iv_maxPBufSize(i_maxPBufSize), iv_pBufSize(0)
{}
/** @brief Template function to get data from the PNOR buffer.
* @param o_data Data to extract from the buffer.
* @return True if the PNOR buffer is full, false if there was room.
*/
template <typename T>
bool getData( T & o_data )
{
size_t sz_data = sizeof(*o_data);
bool full = (iv_maxPBufSize < iv_pBufSize + sz_data);
if ( !full )
{
o_data = reinterpret_cast<T>(&iv_pBuf[iv_pBufSize]);
iv_pBufSize += sz_data;
}
return full;
}
private:
uint8_t * iv_pBuf; ///< Pointer to the PNOR data buffer
size_t iv_maxPBufSize; ///< Maximum size of the PNOR data buffer
size_t iv_pBufSize; ///< Current size of the PNOR data buffer
};
//------------------------------------------------------------------------------
TargetHandle_t getTargetHandle( PNOR_Trgt_t * i_pTrgt )
{
TargetHandle_t o_trgt = nullptr;
do
{
// Get the target type.
TYPE type = TYPE_LAST_IN_RANGE;
switch ( i_pTrgt->trgtType )
{
case TRGT_PROC: type = TYPE_PROC; break;
case TRGT_XBUS: type = TYPE_XBUS; break;
case TRGT_OBUS: type = TYPE_OBUS; break;
case TRGT_EC: type = TYPE_CORE; break;
case TRGT_EQ: type = TYPE_EQ; break;
case TRGT_EX: type = TYPE_EX; break;
case TRGT_MCBIST: type = TYPE_MCBIST; break;
case TRGT_MCS: type = TYPE_MCS; break;
case TRGT_MCA: type = TYPE_MCA; break;
case TRGT_CAPP: type = TYPE_CAPP; break;
case TRGT_PEC: type = TYPE_PEC; break;
case TRGT_PHB: type = TYPE_PHB; break;
case TRGT_MC: type = TYPE_MC; break;
case TRGT_MI: type = TYPE_MI; break;
case TRGT_MCC: type = TYPE_MCC; break;
case TRGT_OMIC: type = TYPE_OMIC; break;
case TRGT_NPU: type = TYPE_NPU; break;
case TRGT_OCMB: type = TYPE_OCMB_CHIP; break;
}
if ( TYPE_LAST_IN_RANGE == type ) break;
if ( TYPE_OCMB_CHIP == type )
{
// Get the OCMB target.
for ( auto & trgt : getFunctionalTargetList(type) )
{
if ( i_pTrgt->chipPos == getTargetPosition(trgt) )
{
o_trgt = trgt;
break;
}
}
}
else // Must be a PROC or sub-unit.
{
// Get the PROC target.
for ( auto & trgt : getFunctionalTargetList(TYPE_PROC) )
{
if ( i_pTrgt->chipPos == getTargetPosition(trgt) )
{
o_trgt = trgt;
break;
}
}
if ( TYPE_PROC != type )
{
// This is a unit so get the connected child target.
o_trgt = getConnectedChild( o_trgt, type, i_pTrgt->unitPos );
}
}
} while (0);
return o_trgt;
}
//------------------------------------------------------------------------------
errlHndl_t readPnorData( uint8_t * & o_pBuf, size_t & o_pBufSize )
{
#define FUNC "[PRDF::readPnorData] "
PNOR::SectionInfo_t info;
errlHndl_t errl = PNOR::getSectionInfo( PNOR::FIRDATA, info );
if ( NULL != errl )
{
PRDF_ERR( FUNC "getSectionInfo() failed" );
}
else
{
o_pBuf = reinterpret_cast<uint8_t *>(info.vaddr);
o_pBufSize = info.size;
}
return errl;
#undef FUNC
}
//------------------------------------------------------------------------------
errlHndl_t readPnorFirData( bool & o_validData, PnorTrgtMap & o_trgtMap,
PnorFfdc & o_ffdc, PnorTrgtFfdcMap & o_trgtFfdc )
{
#define FUNC "[PRDF::readPnorFirData] "
errlHndl_t errl = NULL;
o_validData = false;
bool full = false;
uint8_t * pBuf = NULL;
size_t sz_pBuf = 0;
do
{
// Read the PNOR data.
errl = readPnorData( pBuf, sz_pBuf );
if ( NULL != errl )
{
PRDF_ERR( FUNC "readPnorData() failed" );
break;
}
FirData firData ( pBuf, sz_pBuf );
// Get the PNOR header data.
PNOR_Data_t * data = NULL;
bool full = firData.getData( data );
if ( full ) break;
// Check the header for valid data.
if ( PNOR_FIR2 != data->header )
{
break; // nothing to analyze
}
// Gather FFDC from header data.
o_ffdc.trgts = data->trgts;
o_ffdc.full = (0 == data->full) ? false : true;
o_ffdc.iplStateActive = (FIRDATA_STATE_IPL == data->iplState)
? true:false;
// Iterate each target and get the register data.
for ( uint32_t t = 0; t < data->trgts; t++ )
{
PNOR_Trgt_t * pTrgt = NULL;
full = firData.getData( pTrgt );
if ( full ) break;
TargetHandle_t trgtHndl = getTargetHandle( pTrgt );
if ( NULL == trgtHndl )
{
PRDF_ERR( FUNC "getTargetHandle() failed" );
/*@
* @errortype
* @reasoncode PRDF_NULL_VALUE_RETURNED
* @severity ERRL_SEV_UNRECOVERABLE
* @moduleid PRDF_CS_FIRDATA_READ
* @userdata1 0
* @userdata2 0
* @devdesc NULL system target.
*/
errl = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
PRDF_CS_FIRDATA_READ,
PRDF_NULL_VALUE_RETURNED, 0, 0);
break;
}
// Gather FFDC from target.
if ( 0 != pTrgt->scomErrs )
{
o_trgtFfdc[trgtHndl].scomErrs = pTrgt->scomErrs;
}
// Iterate the regular registers.
for ( uint32_t r = 0; r < pTrgt->regs; r++ )
{
PNOR_Reg_t * reg = NULL;
full = firData.getData( reg );
if ( full ) break;
o_trgtMap[trgtHndl][(uint64_t)reg->addr] = reg->val;
}
if ( full ) break;
// Iterate the indirect-SCOM registers.
for ( uint32_t r = 0; r < pTrgt->idRegs; r++ )
{
PNOR_IdReg_t * reg = NULL;
full = firData.getData( reg );
if ( full ) break;
o_trgtMap[trgtHndl][reg->addr] = (uint64_t)reg->val;
}
if ( full ) break;
}
if ( full ) break;
o_validData = true;
} while (0);
if ( full )
{
PRDF_ERR( FUNC "Needed more data than availabe in PNOR (%d bytes)",
sz_pBuf );
/*@
* @errortype
* @reasoncode PRDF_INVALID_CONFIG
* @severity ERRL_SEV_UNRECOVERABLE
* @moduleid PRDF_CS_FIRDATA_READ
* @userdata1 Size needed
* @userdata2 0
* @devdesc PNOR data is of inefficient size.
*/
errl = new ERRORLOG::ErrlEntry( ERRORLOG::ERRL_SEV_UNRECOVERABLE,
PRDF_CS_FIRDATA_READ,
PRDF_INVALID_CONFIG, sz_pBuf, 0);
}
return errl;
#undef FUNC
}
//------------------------------------------------------------------------------
errlHndl_t clearPnorFirData()
{
return PNOR::clearSection( PNOR::FIRDATA );
}
}; // end namespace PRDF
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