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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/diag/prdf/common/framework/register/prdfRegisterCache.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* COPYRIGHT International Business Machines Corp. 2012,2014 */
/* */
/* 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 <prdfRegisterCache.H>
#include <iipconst.h>
namespace PRDF
{
//------------------------------------------------------------------------------
RegDataCache & RegDataCache::getCachedRegisters()
{
return PRDF_GET_SINGLETON( ReadCache );
}
//------------------------------------------------------------------------------
RegDataCache::~RegDataCache()
{
flush();
}
//------------------------------------------------------------------------------
BIT_STRING_CLASS & RegDataCache::read( ExtensibleChip * i_chip,
const SCAN_COMM_REGISTER_CLASS * i_reg )
{
ScomRegisterAccess l_scomAccessKey ( *i_reg, i_chip );
BIT_STRING_CLASS * l_pBitString = queryCache( l_scomAccessKey );
if ( NULL == l_pBitString )
{
// Creating new entry
l_pBitString = new BitStringBuffer( i_reg->GetBitLength() );
// Adding register in the cache
iv_cachedRead[l_scomAccessKey] = l_pBitString;
}
return *l_pBitString;
}
//------------------------------------------------------------------------------
void RegDataCache::flush()
{
for ( CacheDump::iterator it = iv_cachedRead.begin();
it != iv_cachedRead.end(); it++ )
{
// Freeing up the bit string memory reserved on heap
delete it->second;
}
// Deleting all the entry from the cache
iv_cachedRead.clear();
}
//------------------------------------------------------------------------------
void RegDataCache::flush( ExtensibleChip* i_pChip,
const SCAN_COMM_REGISTER_CLASS * i_pRegister )
{
ScomRegisterAccess l_scomAccessKey ( *i_pRegister,i_pChip );
// Find the entries associated with the given target in the map
CacheDump::iterator it = iv_cachedRead.find( l_scomAccessKey );
// If entry exists delete the entry for given scom address
if ( it !=iv_cachedRead.end() )
{
delete it->second;
iv_cachedRead.erase( it );
}
}
//------------------------------------------------------------------------------
BIT_STRING_CLASS * RegDataCache::queryCache(
ExtensibleChip* i_pChip,
const SCAN_COMM_REGISTER_CLASS * i_pRegister )const
{
ScomRegisterAccess l_scomAccessKey ( *i_pRegister,i_pChip );
return queryCache( l_scomAccessKey );
}
//------------------------------------------------------------------------------
BIT_STRING_CLASS * RegDataCache::queryCache(
const ScomRegisterAccess & i_scomAccessKey ) const
{
BIT_STRING_CLASS * l_pBitString = NULL;
CacheDump::const_iterator itDump = iv_cachedRead.find( i_scomAccessKey );
if( iv_cachedRead.end() != itDump )
{
l_pBitString = itDump->second ;
}
return l_pBitString;
}
//------------------------------------------------------------------------------
}// end namespace PRDF
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