int32_t ErrorRegister::SetErrorSignature( STEP_CODE_DATA_STRUCT & error,
BitKey & bl )
{
int32_t rc = SUCCESS;
ErrorSignature * esig = error.service_data->GetErrorSignature();
uint32_t blen = bl.size();
switch( blen )
{
case 0:
esig->setErrCode( PRD_SCAN_COMM_REGISTER_ZERO );
if( error.service_data->isPrimaryPass() )
{
rc = PRD_SCAN_COMM_REGISTER_ZERO;
}
else if( !xNoErrorOnZeroScr )
{
rc = PRD_SCAN_COMM_REGISTER_ZERO;
}
break;
case 1:
esig->setErrCode(bl.getListValue(0));
break;
default:
for( uint32_t index = 0; index < blen; ++index )
{
esig->setErrCode(bl.getListValue(index));
}
esig->setErrCode(PRD_MULTIPLE_ERRORS);
};
return rc;
}
int32_t ErrorRegister::Analyze( STEP_CODE_DATA_STRUCT & io_sdc )
{
int32_t rc = SUCCESS;
uint32_t l_savedErrSig = 0;
ErrorSignature * esig = io_sdc.service_data->GetErrorSignature();
if(xScrId == 0x0fff)
{
esig->setRegId(scr.GetAddress());
}
else
{
esig->setRegId( xScrId );
}
// Get Data from hardware
const BIT_STRING_CLASS &bs =
Read( io_sdc.service_data->getSecondaryAttnType() );
BitKey bl; // null bit list has length 0
if ( scr_rc == SUCCESS )
{
bl = Filter( bs );
rc = SetErrorSignature( io_sdc, bl );
// Save signature to determine if it changes during resolution
// execution.
l_savedErrSig = esig->getSigId();
}
// This loop will iterate through all bits in the bit list until an active
// attention is found. This is useful in the cases where a global or chiplet
// level FIR has multiple bits set, but the associated local FIRs may not
// have an active attention because of a filter or hardware bug.
uint32_t res_rc = SUCCESS;
BitKey analyzed_bl; // Keep track of bits that have been analyzed.
BitKey remaining_bl = bl; // Keep track of bits that need to be analyzed.
do
{
BitKey res_bl = remaining_bl;
BitKey tmp_bl = remaining_bl;
// lookup and execute the resolutions
res_rc = Lookup( io_sdc, res_bl );
// Add the resolved bits to the analyzed list.
// TODO: RTC 126267 Should modify BitKey to have a more efficient way of
// adding bits to a list.
for ( uint32_t i = 0; i < res_bl.size(); i++ )
analyzed_bl.setBit(res_bl.getListValue(i));
// Remove the resolved bits from the remaining list.
remaining_bl.removeBits(res_bl);
// Make sure forward progress is made.
if ( tmp_bl == remaining_bl ) break;
} while ( (PRD_SCAN_COMM_REGISTER_ZERO == res_rc) &&
(0 != remaining_bl.size()) );
if ( SUCCESS == rc ) rc = res_rc; // previous rc has prioity over res_rc
// If we had a DD02 and the signature changes, ignore DD02.
if ( rc == PRD_SCAN_COMM_REGISTER_ZERO )
{
uint32_t l_currentSig = esig->getSigId();
if( l_currentSig != l_savedErrSig )
{
// Found a better answer during the DD02 analysis.
rc = res_rc;
}
}
if( scr_rc == SUCCESS )
{
FilterUndo( analyzed_bl );
// NOTE: This is an unusual work-a-round for NOT clearing
// particular FIR bits in a register because they are cleared
// in another part of the plugin code.
if( rc == PRD_NO_CLEAR_FIR_BITS )
{
//Return success to indicate that we understand the DDFF
rc = SUCCESS;
}
else
{
int32_t reset_rc;
reset_rc = Reset( analyzed_bl, io_sdc );
if( rc == SUCCESS ) rc = reset_rc;
}
}
else // scr read failed
{
esig->setErrCode( PRD_SCANCOM_FAILURE );
rc = scr_rc;
}
return(rc);
}