From 1fa7778144abe8e64ad6ae4109be9689422442ad Mon Sep 17 00:00:00 2001
From: Zane Shelley <zshelle@us.ibm.com>
Date: Thu, 30 Mar 2017 13:38:06 -0500
Subject: Add mss unmask and FIFO reset calls to step code

Change-Id: I9991d25ce0d33e0608970736f84c4816e3d274fe
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/38644
Reviewed-by: Dean Sanner <dsanner@us.ibm.com>
Reviewed-by: Benjamin J. Weisenbeck <bweisenb@us.ibm.com>
Reviewed-by: Caleb N. Palmer <cnpalmer@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Reviewed-by: Zane C. Shelley <zshelle@us.ibm.com>
---
 src/usr/isteps/istep16/call_mss_scrub.C | 68 +++++++++++++++++++++++++--------
 src/usr/isteps/istep16/makefile         |  2 +
 2 files changed, 55 insertions(+), 15 deletions(-)

(limited to 'src/usr/isteps/istep16')

diff --git a/src/usr/isteps/istep16/call_mss_scrub.C b/src/usr/isteps/istep16/call_mss_scrub.C
index 701ace8e6..55e186334 100644
--- a/src/usr/isteps/istep16/call_mss_scrub.C
+++ b/src/usr/isteps/istep16/call_mss_scrub.C
@@ -5,7 +5,7 @@
 /*                                                                        */
 /* OpenPOWER HostBoot Project                                             */
 /*                                                                        */
-/* Contributors Listed Below - COPYRIGHT 2015,2016                        */
+/* Contributors Listed Below - COPYRIGHT 2015,2017                        */
 /* [+] International Business Machines Corp.                              */
 /*                                                                        */
 /*                                                                        */
@@ -31,12 +31,14 @@
 #include    <util/misc.H>
 #include    <diag/prdf/prdfMain.H>
 
+#include <plat_hwp_invoker.H>     // for FAPI_INVOKE_HWP
+#include <lib/fir/memdiags_fir.H> // for mss::unmask::after_background_scrub
 
 using   namespace   ERRORLOG;
 using   namespace   TARGETING;
 using   namespace   ISTEP;
 using   namespace   ISTEP_ERROR;
-
+using   namespace   TARGETING;
 
 namespace ISTEP_16
 {
@@ -46,24 +48,60 @@ void* call_mss_scrub (void *io_pArgs)
 
     TRACDCOMP( ISTEPS_TRACE::g_trac_isteps_trace, "call_mss_scrub entry" );
 
-    // There are performance issues and some functional deficiencies
-    //  that make runtime scrub problematic, so turning it off
-    if( Util::isSimicsRunning() )
+    errlHndl_t errl = nullptr;
+
+    do
     {
-        TRACFCOMP(  ISTEPS_TRACE::g_trac_isteps_trace, "Skipping runtime scrub in Simics" );
-        return NULL;
-    }
+        if ( Util::isSimicsRunning() )
+        {
+            // There are performance issues and some functional deficiencies
+            // that make background scrub problematic in SIMICs.
+            TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace, "Skipping background "
+                       "scrub in SIMICs" );
+        }
+        else
+        {
+            // Start background scrubbing.
+            errl = PRDF::startScrub();
+            if ( nullptr != errl )
+            {
+                TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace,
+                           "PRDF::startScrub() failed" );
+                break;
+            }
+        }
 
-    errlHndl_t l_errl = PRDF::startScrub();
+        // Nimbus chips require us to unmask some additional FIR bits. Note that
+        // this is not needed on Cumulus based systems because this is already
+        // contained within the other Centaur HWPs.
+        TargetHandle_t masterProc = nullptr;
+        targetService().masterProcChipTargetHandle(masterProc);
+        if ( MODEL_NIMBUS == masterProc->getAttr<ATTR_MODEL>() )
+        {
+            TargetHandleList trgtList; getAllChiplets( trgtList, TYPE_MCBIST );
 
-    if ( NULL != l_errl )
-    {
-        TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace,
-                   "Error returned from call to PRDF::startScrub" );
+            for ( auto & tt : trgtList )
+            {
+                fapi2::Target<fapi2::TARGET_TYPE_MCBIST> ft ( tt );
+
+                FAPI_INVOKE_HWP( errl, mss::unmask::after_background_scrub, ft);
+                if ( nullptr != errl )
+                {
+                    TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace,
+                               "mss::unmask::after_background_scrub(0x%08x) "
+                               "failed", get_huid(tt) );
+                    break;
+                }
+            }
+            if ( nullptr != errl ) break;
+        }
 
-        l_stepError.addErrorDetails( l_errl );
+    } while (0);
 
-        errlCommit( l_errl, HWPF_COMP_ID );
+    if ( nullptr != errl )
+    {
+        l_stepError.addErrorDetails( errl );
+        errlCommit( errl, HWPF_COMP_ID );
     }
 
     TRACDCOMP( ISTEPS_TRACE::g_trac_isteps_trace, "call_mss_scrub exit" );
diff --git a/src/usr/isteps/istep16/makefile b/src/usr/isteps/istep16/makefile
index 14c96c6d8..c04dc08f2 100644
--- a/src/usr/isteps/istep16/makefile
+++ b/src/usr/isteps/istep16/makefile
@@ -31,6 +31,8 @@ EXTRAINCDIR += ${PROCEDURES_PATH}/hwp/pm/
 EXTRAINCDIR += ${PROCEDURES_PATH}/hwp/perv/
 EXTRAINCDIR += ${PROCEDURES_PATH}/hwp/nest/
 EXTRAINCDIR += ${PROCEDURES_PATH}/hwp/lib/
+EXTRAINCDIR += ${PROCEDURES_PATH}/hwp/memory
+EXTRAINCDIR += ${ROOTPATH}/src/import
 EXTRAINCDIR += ${ROOTPATH}/src/import/hwpf/fapi2/include/
 EXTRAINCDIR += ${ROOTPATH}/src/include/usr/fapi2/
 EXTRAINCDIR += ${ROOTPATH}/src/import/chips/p9/common/include/
-- 
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