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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/diag/prdf/common/plat/p9/prdfLineDelete.H $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2005,2016 */
/* [+] 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 prdfLineDelete.H
* Contains the definitions needed for the line delete algorithms and the CE
* table.
*/
#ifndef __PRDFLINEDELETE_H
#define __PRDFLINEDELETE_H
#include <UtilSMap.H>
#include <prdfThresholdResolutions.H>
#include <iipstep.h>
#include <iipCaptureData.h>
namespace PRDF
{
/** @namespace LineDelete
* Namespace to encapsulate all of the LineDelete specific classes and enums.
*/
namespace LineDelete
{
/** @enum CacheType
* Used to express where a cache error occurred.
*/
enum CacheType
{
L3 = 0,
L3_DIR = 1,
L2 = 2,
L2_DIR = 4,
CACHE_MASK = L3 | L3_DIR | L2 | L2_DIR,
SLICE_A = 8,
SLICE_B = 16,
SLICE_MASK = SLICE_A | SLICE_B
};
/** @enum CacheErrorType
* Used to express the types of cache errors that can occur.
*/
enum CacheErrorType
{
UE, CE
};
/** @typedef PrdfCacheAddress
* Used to index cache error hits in the CE table.
*/
typedef uint32_t PrdfCacheAddress;
/** @typedef PrdfCacheAddressTable
* Maps Cache Addresses to hit counts.
*/
typedef UtilSMap<PrdfCacheAddress, uint32_t> PrdfCacheAddressTable;
/** @class PrdfCacheCETable
* Used to store and threshold cache CE errors.
*
* Takes a threshold policy (such as "2 per day") and allows that many hits
* per address before signalling "at threshold". (the 2nd occurrence would
* be the at threshold).
*
* @note This is now being used for eRepair as well as cache CEs.
*/
class PrdfCacheCETable
{
public:
/** Default constructor */
PrdfCacheCETable() {}
/**
* @brief Constructor from ThresholdPolicy struct.
* @param i_thPolicy A pointer to a ThresholdPolicy struct.
*/
explicit PrdfCacheCETable(
const ThresholdResolution::ThresholdPolicy i_thPolicy ) :
iv_thPolicy(i_thPolicy), cv_flushTimerInited(false)
{}
// NOTE: iv_thPolicy should never be deleted in this class so the
// default destructor will be sufficient.
/** @fn addAddress
* Insert an address into the CE table.
*
* @param The CE address.
* @param The Service Data Collector to get the current time.
*
* @return true - if the threshold policy has been reached.
* @return false - if the threshold policy has not been reached.
*/
bool addAddress(PrdfCacheAddress, STEP_CODE_DATA_STRUCT &);
/** @fn PrdfCacheCETable::isIntervalElapsed()
* @param STEP_CODE_DATA_STRUCT & i_sdc
* @return TRUE if the interval time has elapsed.
*/
bool isIntervalElapsed( STEP_CODE_DATA_STRUCT & i_sdc );
/** @fn flushTable
* Clear all CE hits from the table and reset timer to 0.
*/
void flushTable();
private:
ThresholdResolution::ThresholdPolicy iv_thPolicy;
PrdfCacheAddressTable cv_ceTable;
Timer cv_flushTimer;
bool cv_flushTimerInited;
};
};
} // end namespace PRDF
#endif
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