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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/import/chips/p9/procedures/hwp/perv/p9_core_checkstop_handler.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2018 */
/* [+] 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 */
#include "p9_core_checkstop_handler.H"
#include "p9_const_common.H"
#include <p9_quad_scom_addresses.H>
fapi2::ReturnCode p9_core_checkstop_handler(
const fapi2::Target<fapi2::TARGET_TYPE_CORE>& i_target_core,
bool i_override_restore)
{
FAPI_INF("Entering ...");
fapi2::buffer<uint64_t> l_action0;
fapi2::buffer<uint64_t> l_action1;
const fapi2::Target<fapi2::TARGET_TYPE_SYSTEM> FAPI_SYSTEM;
//if true, save off the original action, and turn local xstops into system xstops.
if(i_override_restore == CORE_XSTOP_HNDLR__SAVE_AND_ESCALATE)
{
// Getting ACTION0
FAPI_TRY(fapi2::getScom(i_target_core, C_CORE_ACTION0, l_action0),
"Error from getScom (C_CORE_ACTION0)");
// Getting ACTION1
FAPI_TRY(fapi2::getScom(i_target_core, C_CORE_ACTION1, l_action1),
"Error from getScom (C_CORE_ACTION1");
// We want to save the original actions into an attribute for a save-restore
FAPI_TRY(FAPI_ATTR_SET(fapi2::ATTR_ORIG_FIR_SETTINGS_ACTION0, FAPI_SYSTEM, l_action0),
"Error from FAPI_ATTR_SET (ATTR_ORIG_FIR_SETTINGS_ACTION0)");
FAPI_TRY(FAPI_ATTR_SET(fapi2::ATTR_ORIG_FIR_SETTINGS_ACTION1, FAPI_SYSTEM, l_action1),
"Error from FAPI_ATTR_SET (ATTR_ORIG_FIR_SETTINGS_ACTION1)");
// For every bit, turn every local xstop (0b11) into system xstops (0b00)
uint64_t l_local_xstop = l_action0 & l_action1; //gets bits that are both set to 1
l_action0 &= ~l_local_xstop;
l_action1 &= ~l_local_xstop;
}
else
{
// We want to pull out the original actions, and restore them
FAPI_TRY(FAPI_ATTR_GET(fapi2::ATTR_ORIG_FIR_SETTINGS_ACTION0, FAPI_SYSTEM, l_action0),
"Error from FAPI_ATTR_SET (ATTR_ORIG_FIR_SETTINGS_ACTION0)");
FAPI_TRY(FAPI_ATTR_GET(fapi2::ATTR_ORIG_FIR_SETTINGS_ACTION1, FAPI_SYSTEM, l_action1),
"Error from FAPI_ATTR_SET (ATTR_ORIG_FIR_SETTINGS_ACTION1)");
}
// Save off the current values of actions into the register
FAPI_TRY(fapi2::putScom(i_target_core, C_CORE_ACTION0, l_action0),
"Error from putScom (C_CORE_ACTION0");
FAPI_TRY(fapi2::putScom(i_target_core, C_CORE_ACTION1, l_action1),
"Error from putScrom (C_CORE_ACTION1)");
FAPI_INF("Exiting ...");
fapi_try_exit:
return fapi2::current_err;
}
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