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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/diag/prdf/common/plat/mem/prdfMemAddress.H $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 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 prdfMemAddress.H
* @brief General utilities to read, modify, and write the memory address
* registers for Centaur MBA and P9 MCBIST/MCA.
*/
#ifndef __prdfMemAddress_H
#define __prdfMemAddress_H
// Platform includes
#include <prdfMemRank.H>
#include <prdfPlatServices.H>
// External includes
#include <vector>
namespace PRDF
{
class ExtensibleChip;
//------------------------------------------------------------------------------
// Class MemAddr
//------------------------------------------------------------------------------
/** @brief Simple container for a memory address.
* @note These addresses are relative to the MBA and MCA targets. Therefore,
* they do not contain information like the port, which is needed for
* MCBIST targets. So that information will need to be derived
* elsewhere.
*/
class MemAddr
{
public: // constants, enums
/** Supported read address registers */
enum ReadReg
{
READ_NCE_ADDR,
READ_RCE_ADDR,
READ_MPE_ADDR,
READ_UE_ADDR,
READ_AUE_ADDR, // not supported on Centaur
};
public: // functions
/** @brief Default constructor. */
MemAddr() = default;
/**
* @brief Creates a MemAddr from a mainline memory read address.
* @param i_addr 64-bit address.
*/
template<TARGETING::TYPE T>
static MemAddr fromReadAddr( uint64_t i_addr );
/**
* @brief Creates a MemAddr from a maintenance address.
* @param i_addr 64-bit address.
*/
template<TARGETING::TYPE T>
static MemAddr fromMaintAddr( uint64_t i_addr );
/** @return This address's rank. */
const MemRank& getRank() const { return iv_rnk; }
/** @return This address's bank. */
uint32_t getBank() const { return iv_bnk; }
/** @return This address's row. */
uint32_t getRow() const { return iv_row; }
/** @return This address's column. */
uint32_t getCol() const { return iv_col; }
/** @brief '==' operator */
bool operator==( const MemAddr & i_addr ) const
{
return ( this->getRank() == i_addr.getRank() &&
this->getBank() == i_addr.getBank() &&
this->getRow() == i_addr.getRow() &&
this->getCol() == i_addr.getCol() );
}
private: // functions
/**
* @brief Constructor from components.
* @param i_rnk Rank See MemRank class
* @param i_bnk Bank MBA (DDR4): bg1-bg0,b1-b0 (4-bit)
* MBA (DDR3): b2-b0 (3-bit)
* MCBIST: bg0-bg1,b0-b2 (5-bit)
* @param i_row Row MBA: c13,c11,c9-c3 (9-bit)
* MCBIST: c3-c9 (7-bit)
* @param i_col Column MBA: r17-r0 (18-bit)
* MCBIST: r0-r17 (18-bit)
*/
MemAddr( MemRank i_rnk, uint8_t i_bnk, uint32_t i_row, uint16_t i_col ) :
iv_rnk(i_rnk), iv_bnk(i_bnk), iv_row(i_row), iv_col(i_col)
{}
private: // instance variables
MemRank iv_rnk; ///< Rank
uint8_t iv_bnk = 0; ///< Bank
uint32_t iv_row = 0; ///< Row
uint16_t iv_col = 0; ///< Column
};
//------------------------------------------------------------------------------
// Address Accessor Functions
//------------------------------------------------------------------------------
/**
* @brief Reads the specified mainline memory read address from hardware.
*
* While the address returned will be relative to an MBA or MCA, this function
* requires the MEMBUF or MCBIST targets and the position of the MBA or MCA
* relative to the parent. The reason for this is because of where the addresses
* and FIRs are located on the Nimbus or Centaur. We didn't want to add a lot of
* hopping around between targets just to make the interface look pretty.
*
* @param i_chip An MEMBUF or MCBIST chip.
* @param i_pos Position of MBA/MCA relative to MEMBUF/MCBIST.
* @param i_reg The target address register.
* @param o_addr The returned address from hardware.
* @return Non-SUCCESS if an internal function fails, SUCCESS otherwise.
*/
template<TARGETING::TYPE T>
uint32_t getMemReadAddr( ExtensibleChip * i_chip, uint32_t i_pos,
MemAddr::ReadReg i_reg, MemAddr & o_addr );
#ifdef __HOSTBOOT_MODULE
/**
* @brief Reads the maintenance address from hardware.
*
* While the address returned will be relative to an MBA or MCA, this function
* requires the MBA or MCBIST targets, which is where the maintenance logic
* is on the Nimbus or Centaur. We didn't want to add a lot of hopping around
* between targets just to make the interface look pretty.
*
* The address register in the MCBIST may contain the MCA port information, but
* that is dependent on the on whether or not the command was run in broadcast
* mode or not. Therefore, users must call getMemMaintPort() to get the port
* information.
*
* @param i_chip An MBA or MCBIST chip.
* @param o_addr The returned address from hardware.
* @return Non-SUCCESS if an internal function fails, SUCCESS otherwise.
*/
template<TARGETING::TYPE T>
uint32_t getMemMaintAddr( ExtensibleChip * i_chip, MemAddr & o_addr );
/**
* @brief Queries broadcast mode information and determines which of the MCBIST
* ports were targeted for the command.
*
* Notes about broadcast mode. It will only be run...
* - on all configured ports, no partials configurations supported.
* - if there are more than one configured ports behind the MCBIST.
* - if all configured ports have the same geometry.
*
* @note Only supported for MCBIST.
* @param i_mcbChip An MCBIST chip.
* @param o_mcaList A list of all MCAs targeted by the command.
* @return Non-SUCCESS if an internal function fails, SUCCESS otherwise.
*/
uint32_t getMemMaintPort( ExtensibleChip * i_mcbChip,
std::vector<ExtensibleChip *> & o_mcaList );
#endif
} // end namespace PRDF
#endif // __prdfMemAddress_H
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