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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/import/chips/p9/procedures/hwp/memory/lib/workarounds/nvdimm_workarounds.H $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2018,2019 */
/* [+] 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 nvdimm_workarounds.H
/// @brief Workarounds for NVDIMM
/// Workarounds are very device specific, so there is no attempt to generalize
/// this code in any way.
///
// *HWP HWP Owner: Tsung Yeung <tyeung@us.ibm.com>
// *HWP HWP Backup: Stephen Glancy <sglancy@us.ibm.com>
// *HWP Team: Memory
// *HWP Level: 3
// *HWP Consumed by: FSP:HB
#ifndef _MSS_WORKAROUNDS_NVDIMM_H_
#define _MSS_WORKAROUNDS_NVDIMM_H_
#include <fapi2.H>
namespace mss
{
namespace workarounds
{
namespace nvdimm
{
// Function pointer for HWP support in PPE
typedef fapi2::ReturnCode (*p9_flush_nvdimm_FP_t) (const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target);
///
/// @brief Triggers csave on NVDIMM. This subroutine reads ATTR_SBE_NVDIMM_IN_PORT
/// and fires the trigger to all the ports with NVDIMM plugged. This is written
/// specifically for SBE.
/// @param[in] i_target - PROC_CHIP target
/// @return FAPI2_RC_SUCCESS iff setup was successful
///
fapi2::ReturnCode trigger_csave( const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target );
///
/// @brief Program the necessary scom regs to prepare for CSAVE
/// @param[in] i_target - PROC_CHIP target
/// @param[in] i_mcbist - mcbist position relative to the proc
/// @param[out] o_addresses - list of addresses that require restore
/// @param[out] o_data - data to restore to o_addresses
/// @return FAPI2_RC_SUCCESS iff setup was successful
///
fapi2::ReturnCode prep_for_csave( const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint8_t i_mcbist,
std::vector<uint64_t>& o_addresses,
std::vector<fapi2::buffer<uint64_t>>& o_data);
///
/// @brief Select which port to run CCS on
/// @param[in] i_target - PROC_CHIP target
/// @param[in] i_mca - mca position relative to the proc
/// @param[out] o_addresses - list of addresses that require restore
/// @param[out] o_data - data to restore to o_addresses
/// @return FAPI2_RC_SUCCESS iff setup was successful
///
fapi2::ReturnCode select_port(const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint8_t i_mca,
std::vector<uint64_t>& o_addresses,
std::vector<fapi2::buffer<uint64_t>>& o_data);
///
/// @brief Start or stop CCS
/// @param[in] i_target - PROC_CHIP target
/// @param[in] i_mcbist - mcbist position relative to the proc
/// @param[in] i_start_stop - start or stop CCS
/// @return FAPI2_RC_SUCCESS iff setup was successful
///
fapi2::ReturnCode start_stop_ccs( const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint8_t i_mcbist,
const bool i_start_stop);
///
/// @brief change the BAR valid state on MCS with NVDIMM installed
/// @param[in] i_target - PROC_CHIP target
/// @param[in] i_port_bitmap - port bitmap that indicates port with nvdimm
/// @param[in] i_state - BAR state to change to
/// @return FAPI2_RC_SUCCESS iff setup was successful
///
fapi2::ReturnCode change_bar_valid_state( const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const fapi2::buffer<uint8_t> i_port_bitmap,
const uint64_t i_state);
}//ns nvdimm
}//ns workarounds
}//ns mss
#endif
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