STOP: Release the PCB Atomic lock on aborted Stop 11 entry

vanderp · op-jenkins · commit 127b1eca3e84 · 2018-08-22T17:54:46.000-05:00
Change-Id: If95f95933a4524c70d0d83d7b122eb64a0011588 Original-Change-Id: If11230c11e82f3a2ec2fe9fee16408374737b8f8 Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/39974 Reviewed-by: Michael S. Floyd <mfloyd@us.ibm.com> Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com> Reviewed-by: AMIT KUMAR <akumar3@us.ibm.com> Reviewed-by: Gregory S. Still <stillgs@us.ibm.com>
diff --git a/import/chips/p9/procedures/ppe_closed/sgpe/stop_gpe/p9_sgpe_stop_entry.c b/import/chips/p9/procedures/ppe_closed/sgpe/stop_gpe/p9_sgpe_stop_entry.c
@@ -716,6 +716,18 @@ p9_sgpe_stop_entry()
         if (l3_purge_aborted)
         {
             PK_TRACE_INF("Abort: L3 Purge Aborted");
+
+            PK_TRACE("Release cache PCB slave atomic lock");
+            GPE_PUTSCOM(GPE_SCOM_ADDR_QUAD(EQ_QPPM_ATOMIC_LOCK, qloop), 0);
+            GPE_GETSCOM(GPE_SCOM_ADDR_QUAD(EQ_QPPM_ATOMIC_LOCK, qloop), scom_data.value);
+
+            if (scom_data.words.upper & BIT32(0))
+            {
+                PK_TRACE_ERR("ERROR: Failed to Release Cache %d PCB Slave Atomic Lock. Register Content: %x",
+                             qloop, scom_data.words.upper);
+                PK_PANIC(SGPE_STOP_EXIT_DROP_SLV_LOCK_FAILED);
+            }
+
             // For IPC reporting, taking aborted quad out of the list
             G_sgpe_stop_record.group.quad[VECTOR_ENTRY] &= ~BIT32(qloop);
             continue;
