STOP/PState: SGPE/PGPE Error Handling Support

Upon PGPE Halt
1) SGPE performs STOP Recovery Trigger to set
a malfunction alert and removes PGPE IPCs
from wake-up decisions.
2) CME is interrupted by QPPM OCC Heartbeat
Lost that PGPE stopped updating

Upon SGPE Halt
1) PGPE moves to Psafe
2) PGPE performs STOP Recovery Trigger to set
a malfunction alert.

This commit also includes SGPE Panic Code
Cleanup such as debug halt support.
However PGPE Panic Code Cleanup is dealt in
a different commit

Key_Cronus_Test=PM_REGRESS

Change-Id: I71d1af70dfb28a9798d9f8e7a64544628548a1db
Original-Change-Id: I893aa1ef21d2f684722b8c10dbbeb92b9505c1c4
CQ: SW410252
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/49275
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: HWSV CI <hwsv-ci+hostboot@us.ibm.com>
Tested-by: Cronus HW CI <cronushw-ci+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: Michael S. Floyd <mfloyd@us.ibm.com>
Reviewed-by: RAHUL BATRA <rbatra@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>

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);
+}