diff options
Diffstat (limited to 'src')
3 files changed, 162 insertions, 0 deletions
diff --git a/src/import/chips/p9/procedures/hwp/perv/p9_core_checkstop_handler.C b/src/import/chips/p9/procedures/hwp/perv/p9_core_checkstop_handler.C new file mode 100644 index 000000000..d8e9bd996 --- /dev/null +++ b/src/import/chips/p9/procedures/hwp/perv/p9_core_checkstop_handler.C @@ -0,0 +1,86 @@ +/* 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) + { + // 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; + +} diff --git a/src/import/chips/p9/procedures/hwp/perv/p9_core_checkstop_handler.H b/src/import/chips/p9/procedures/hwp/perv/p9_core_checkstop_handler.H new file mode 100644 index 000000000..4b9435c79 --- /dev/null +++ b/src/import/chips/p9/procedures/hwp/perv/p9_core_checkstop_handler.H @@ -0,0 +1,50 @@ +/* IBM_PROLOG_BEGIN_TAG */ +/* This is an automatically generated prolog. */ +/* */ +/* $Source: src/import/chips/p9/procedures/hwp/perv/p9_core_checkstop_handler.H $ */ +/* */ +/* 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 */ +#ifndef _P9_CORE_CHECKSTOP_HANDLER_H_ +#define _P9_CORE_CHECKSTOP_HANDLER_H_ + +#include <fapi2.H> + +typedef fapi2::ReturnCode (*p9_core_checkstop_handler_FP_t)( + const fapi2::Target<fapi2::TARGET_TYPE_CORE>&, bool); + +// @brief Handles core checkstops for P9 when we want to switch between +// unit and system checkstops. +// +// @param[in] i_target_core Reference to TARGET_TYPE_CORE target +// @param[in] i_override_restore Boolean to switch between override and restore modes. +// If true, we save off the original register and turn +// local xstops into system xstops. +// If false, we restore the original register. +// @return FAPI2_RC_SUCCESS if success, else error code. +// +extern "C" +{ + fapi2::ReturnCode p9_core_checkstop_handler( + const fapi2::Target<fapi2::TARGET_TYPE_CORE>& i_target_core, + bool i_override_restore); +} + +#endif diff --git a/src/import/chips/p9/procedures/hwp/perv/p9_core_checkstop_handler.mk b/src/import/chips/p9/procedures/hwp/perv/p9_core_checkstop_handler.mk new file mode 100644 index 000000000..4b1caf742 --- /dev/null +++ b/src/import/chips/p9/procedures/hwp/perv/p9_core_checkstop_handler.mk @@ -0,0 +1,26 @@ +# IBM_PROLOG_BEGIN_TAG +# This is an automatically generated prolog. +# +# $Source: src/import/chips/p9/procedures/hwp/perv/p9_core_checkstop_handler.mk $ +# +# 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 +PROCEDURE=p9_core_checkstop_handler +$(call BUILD_PROCEDURE) |
