diff options
| -rw-r--r-- | import/chips/p9/procedures/ppe_closed/lib/p9_stop_recovery_trigger.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/import/chips/p9/procedures/ppe_closed/lib/p9_stop_recovery_trigger.c b/import/chips/p9/procedures/ppe_closed/lib/p9_stop_recovery_trigger.c new file mode 100644 index 00000000..34dddf79 --- /dev/null +++ b/import/chips/p9/procedures/ppe_closed/lib/p9_stop_recovery_trigger.c @@ -0,0 +1,61 @@ +/* IBM_PROLOG_BEGIN_TAG */ +/* This is an automatically generated prolog. */ +/* */ +/* $Source: import/chips/p9/procedures/ppe_closed/lib/p9_stop_recovery_trigger.c $ */ +/* */ +/* OpenPOWER HCODE Project */ +/* */ +/* COPYRIGHT 2017,2018 */ +/* [+] 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 "stdint.h" +#include "pk.h" +#include "ppe42_scom.h" +#include "gpehw_common.h" +#include "p9_stop_recovery_trigger.h" + +// When an error occurs that affects the STOP portion of the PM subsystem, +// HYP is notified via a malfunction alert that is injected by programming +// the ADU AFTER a respective bit is set in the OCC LFIR. + +void +p9_stop_recovery_trigger() +{ + uint64_t scom_data = 0; + PK_TRACE_INF("WARNING: STOP RECOVERY TRIGGER!"); + + //1. Set ADU lock for exclusive use for a timeout of 500ms. + + do + { + + GPE_PUTSCOM(0x90001, 0x0010000000000000ull); + GPE_GETSCOM(0x90001, scom_data); + + } + while (!(scom_data & 0x0010000000000000ull)); + + //2. Cleanup/reset ADU + GPE_PUTSCOM(0x90001, 0x1810000000000000ull); + + //3. Setup PowerBus 'address' field for malf alert + GPE_PUTSCOM(0x90000, 0x0000100000000000ull); + + //4. Setup PowerBus command type and launch malfunction + GPE_PUTSCOM(0x90001, 0x2210A03104000000ull); +} |
