Handle pending interrupts across nodes in mpipl

RTC: 80988
Change-Id: I7ef9feaa3d163d6956576f30538e2fe001e892a1
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/8441
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Tested-by: Jenkins Server
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

4 files changed, 84 insertions, 3 deletions

diff --git a/src/include/sys/internode.h b/src/include/sys/internode.h
new file mode 100644
index 000000000..3d4c6bf65
--- /dev/null
+++ b/src/include/sys/internode.h
@@ -0,0 +1,58 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/include/sys/internode.h $                                 */
+/*                                                                        */
+/* IBM CONFIDENTIAL                                                       */
+/*                                                                        */
+/* COPYRIGHT International Business Machines Corp. 2014                   */
+/*                                                                        */
+/* p1                                                                     */
+/*                                                                        */
+/* Object Code Only (OCO) source materials                                */
+/* Licensed Internal Code Source Materials                                */
+/* IBM HostBoot Licensed Internal Code                                    */
+/*                                                                        */
+/* The source code for this program is not published or otherwise         */
+/* divested of its trade secrets, irrespective of what has been           */
+/* deposited with the U.S. Copyright Office.                              */
+/*                                                                        */
+/* Origin: 30                                                             */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+#ifndef __INTERNODE_H
+#define __INTERNODE_H
+// Memory area preserved on MPIPL
+
+#include <vmmconst.h>
+
+enum internode_info_vals_t
+{
+    MAX_NODES_PER_SYS = 8,
+};
+
+enum intr_mpipl_sync_t
+{
+    INTR_MPIPL_SYNC_CLEAR = 0,
+    INTR_MPIPL_UPSTREAM_DISABLED = 1,
+    INTR_MPIPL_DRAINED = 2,
+};
+
+
+/**
+ * Node information needed across MPIPLs
+ */
+struct internode_info_t
+{
+    uint64_t eye_catcher;
+    uint64_t version;
+    bool  exist[ MAX_NODES_PER_SYS ];       //!< true if HB node exists
+    volatile intr_mpipl_sync_t  mpipl_intr_sync;     //!< at sync point
+};
+
+#define NODE_INFO_EYE_CATCHER 0x4e4f444544415441ul // "NODEDATA"
+#define NODE_INFO_VERSION 1
+
+#define INTERNODE_INFO_SIZE (sizeof(internode_info_t))
+
+#endif
diff --git a/src/include/usr/intr/interrupt.H b/src/include/usr/intr/interrupt.H
index f8dd202ac..b8ab621b2 100644
--- a/src/include/usr/intr/interrupt.H
+++ b/src/include/usr/intr/interrupt.H
@@ -5,7 +5,7 @@
 /*                                                                        */
 /* IBM CONFIDENTIAL                                                       */
 /*                                                                        */
-/* COPYRIGHT International Business Machines Corp. 2011,2013              */
+/* COPYRIGHT International Business Machines Corp. 2011,2014              */
 /*                                                                        */
 /* p1                                                                     */
 /*                                                                        */
@@ -145,6 +145,7 @@ namespace INTR
         MSG_INTR_ENABLE_PSI_INTR,   //!< Enable PSI interrupts
         MSG_INTR_MPIPL_CLEANUP,     //!< Clean up interrupts on MPIPL
         MSG_INTR_ADD_CPU_TIMEOUT,   //!< Check for a timeout waiting for a core.
+        MSG_INTR_ADD_HBNODE,        //!< Add node info for MPIPL
     };
 
     /**
@@ -212,6 +213,13 @@ namespace INTR
     uint64_t getIntpAddr(const TARGETING::Target * i_ex,
                          uint8_t i_thread);
 
+    /**
+     * Indicate the existance of another HB node in the system
+     * @param[in] The HB instance number (HB node)
+     * @return error log handle on error
+     */
+    errlHndl_t addHbNode(uint64_t i_hbNode);
+
 };
 
 #endif
diff --git a/src/include/usr/intr/intr_reasoncodes.H b/src/include/usr/intr/intr_reasoncodes.H
index 7965875b5..3cdce388d 100644
--- a/src/include/usr/intr/intr_reasoncodes.H
+++ b/src/include/usr/intr/intr_reasoncodes.H
@@ -5,7 +5,7 @@
 /*                                                                        */
 /* IBM CONFIDENTIAL                                                       */
 /*                                                                        */
-/* COPYRIGHT International Business Machines Corp. 2011,2013              */
+/* COPYRIGHT International Business Machines Corp. 2011,2014              */
 /*                                                                        */
 /* p1                                                                     */
 /*                                                                        */
@@ -37,6 +37,10 @@ namespace INTR
         MOD_INTRRP_REGISTERINTERRUPT = 0x05, /**< intrrp.C : IntrRp::registerInterrupt */
         MOD_INTR_ENABLE_PSI_INTR     = 0x06, /**< intrrp.C : INTR::enablePsiIntr */
         MOD_INTR_INIT_XIVR           = 0x07, /**< intrrp.C : INTR::initXIVR */
+        MOD_INTR_INIT_MPIPLAREA      = 0x08, /**< intrrp.C : IntrRp::initailizeMpiplSyncArea() */
+        MOD_INTR_SYNC_NODES          = 0x09, /**< intrrp.C : IntrRp::syncNodes() */
+        MOD_INTR_SYNC_ADDNODE        = 0x0A, /**< intrrp.C : IntrRp::addHbNodeToMpiplSyncArea */
+        MOD_INTR_ADDHBNODE           = 0x0B, /**< intrrp.C : INTR::addHbNode */
     };
 
     enum IntrReasonCode
@@ -48,6 +52,7 @@ namespace INTR
         RC_BAD_ISN                    = INTR_COMP_ID | 0x05,
         //termination_rc
         RC_PERSISTENT_INTERRUPTS      = INTR_COMP_ID | 0x06,
+        RC_CANNOT_MAP_MEMORY          = INTR_COMP_ID | 0x07,
     };
 };
 
diff --git a/src/include/usr/vmmconst.h b/src/include/usr/vmmconst.h
index c93e62148..33586a4db 100644
--- a/src/include/usr/vmmconst.h
+++ b/src/include/usr/vmmconst.h
@@ -5,7 +5,7 @@
 /*                                                                        */
 /* IBM CONFIDENTIAL                                                       */
 /*                                                                        */
-/* COPYRIGHT International Business Machines Corp. 2011,2013              */
+/* COPYRIGHT International Business Machines Corp. 2011,2014              */
 /*                                                                        */
 /* p1                                                                     */
 /*                                                                        */
@@ -158,6 +158,16 @@ enum BlockPriority
                            VMM_ALL_HOMER_OCC_MEMORY_SIZE)
 
 
+/** Internode communication area outside of the HB image.
+ * Preserved between mpipl.
+ *
+ * @node There is one area per hostboot instance.
+ *  Need to add (ATTR_HB_HRMOR_NODAL_BASE * hbinstance_num) to this
+ *  address to get the physical address
+ */
+#define VMM_INTERNODE_PRESERVED_MEMORY_ADDR (96 * MEGABYTE)
+
+
 /**
  * Test Constants
  */