PRD: Add support for memory IMPE analysis

Change-Id: Icb2e6b8f4c87c38a47f46ecb5d97d36533296ba9
RTC: 165384
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/38902
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Benjamin J. Weisenbeck <bweisenb@us.ibm.com>
Reviewed-by: Zane C. Shelley <zshelle@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/39002
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>

9 files changed, 173 insertions, 5 deletions

diff --git a/src/usr/diag/prdf/common/plat/mem/prdfMemEccAnalysis.C b/src/usr/diag/prdf/common/plat/mem/prdfMemEccAnalysis.C
index d2746f138..491b1f63b 100644
--- a/src/usr/diag/prdf/common/plat/mem/prdfMemEccAnalysis.C
+++ b/src/usr/diag/prdf/common/plat/mem/prdfMemEccAnalysis.C
@@ -832,6 +832,113 @@ uint32_t analyzeMaintIue<TYPE_MCA, McaDataBundle*>(ExtensibleChip * i_chip,
 
 //------------------------------------------------------------------------------
 
+template<TARGETING::TYPE T, typename D>
+uint32_t analyzeImpe( ExtensibleChip * i_chip, STEP_CODE_DATA_STRUCT & io_sc )
+{
+
+    #define PRDF_FUNC "[MemEcc::analyzeImpe] "
+
+    PRDF_ASSERT( T == i_chip->getType() );
+
+    uint32_t o_rc = SUCCESS;
+
+    #ifdef __HOSTBOOT_MODULE
+
+    do
+    {
+        // get data bundle from chip
+        D db = static_cast<D>( i_chip->getDataBundle() );
+
+        // get the mark shadow register
+        SCAN_COMM_REGISTER_CLASS * msr = i_chip->getRegister("MSR");
+
+        o_rc = msr->Read();
+        if ( SUCCESS != o_rc )
+        {
+            PRDF_ERR( PRDF_FUNC "Read() failed on MSR: i_chip=0x%08x",
+                    i_chip->getHuid() );
+            break;
+        }
+
+        TargetHandle_t trgt = i_chip->getTrgt();
+
+        // get galois field code - bits 8:15 of MSR
+        uint8_t galois = msr->GetBitFieldJustified( 8, 8 );
+
+        // get rank - bits 16:18 of MSR
+        uint8_t mrnk = msr->GetBitFieldJustified( 16, 3 );
+        MemRank rank( mrnk );
+
+        // get symbol and DRAM
+        MemSymbol symbol = MemSymbol::fromGalois( trgt, rank, galois );
+        uint8_t dram = symbol.getDram();
+
+        // Add the DIMM to the callout list
+        MemoryMru memmru( trgt, rank, MemoryMruData::CALLOUT_RANK );
+        io_sc.service_data->SetCallout( memmru );
+
+        // if at any point there is more than one dram reporting an IMPE on a
+        // rank within the timebase of the threshold we make the error log
+        // predictive
+
+        // clear our vector of drams if the threshold time has elapsed
+        if ( db->iv_impeThMap[rank].timeElapsed(io_sc) )
+        {
+            db->iv_impeDramMap[rank].clear();
+        }
+
+        // if this DRAM hasn't already reported an IMPE on this rank
+        if ( std::find( db->iv_impeDramMap[rank].begin(),
+                        db->iv_impeDramMap[rank].end(), dram ) ==
+             db->iv_impeDramMap[rank].end() )
+        {
+            // if there is another DRAM reporting an IMPE on this rank as well
+            if ( 0 != db->iv_impeDramMap[rank].size() )
+            {
+                // Make the error log predictive
+                io_sc.service_data->setServiceCall();
+            }
+
+            // add the DRAM to the map
+            db->iv_impeDramMap[rank].push_back( dram );
+        }
+
+        // Initialize threshold if it doesn't exist yet
+        if ( 0 == db->iv_impeThMap.count(rank) )
+        {
+            db->iv_impeThMap[rank] = TimeBasedThreshold( getImpeTh() );
+        }
+
+        // increment count for the given rank - check if at threshold
+        if ( db->iv_impeThMap[rank].inc(io_sc) )
+        {
+            // place a chip mark on the failing DRAM
+            MemMark chipMark( trgt, rank, galois );
+            o_rc = MarkStore::writeChipMark<T>( i_chip, rank, chipMark );
+            if ( SUCCESS != o_rc )
+            {
+                PRDF_ERR( PRDF_FUNC "MarkStore::writeChipMark(0x%08x,m%ds%d) "
+                          "failed", i_chip->getHuid(), rank.getMaster(),
+                          rank.getSlave() );
+                break;
+            }
+        }
+
+    }while(0);
+
+    #endif
+
+    return o_rc;
+
+    #undef PRDF_FUNC
+}
+
+template
+uint32_t analyzeImpe<TYPE_MCA, McaDataBundle*>( ExtensibleChip * i_chip,
+                                                STEP_CODE_DATA_STRUCT & io_sc );
+
+//------------------------------------------------------------------------------
+
 } // end namespace MemEcc
 
 } // end namespace PRDF
diff --git a/src/usr/diag/prdf/common/plat/mem/prdfMemEccAnalysis.H b/src/usr/diag/prdf/common/plat/mem/prdfMemEccAnalysis.H
index 4855abeb6..1ddc31d55 100644
--- a/src/usr/diag/prdf/common/plat/mem/prdfMemEccAnalysis.H
+++ b/src/usr/diag/prdf/common/plat/mem/prdfMemEccAnalysis.H
@@ -120,6 +120,15 @@ template<TARGETING::TYPE T, typename D>
 uint32_t analyzeMaintIue( ExtensibleChip * i_chip,
                           STEP_CODE_DATA_STRUCT & io_sc );
 
+/**
+ * @brief  Analyzes a maint or mainline IMPE attention.
+ * @param  i_chip   MCA or MBA.
+ * @param  io_sc    The step code data struct.
+ * @return Non-SUCCESS if an internal function fails, SUCCESS otherwise.
+ */
+template<TARGETING::TYPE T, typename D>
+uint32_t analyzeImpe( ExtensibleChip * i_chip, STEP_CODE_DATA_STRUCT & io_sc );
+
 #ifdef __HOSTBOOT_RUNTIME
 
 /**
diff --git a/src/usr/diag/prdf/common/plat/mem/prdfMemThresholds.C b/src/usr/diag/prdf/common/plat/mem/prdfMemThresholds.C
index 136635d94..e0cc1790f 100755
--- a/src/usr/diag/prdf/common/plat/mem/prdfMemThresholds.C
+++ b/src/usr/diag/prdf/common/plat/mem/prdfMemThresholds.C
@@ -46,6 +46,7 @@ using namespace PlatServices;
 enum DefaultThresholds
 {
     MCA_RCD_PARITY_NON_MNFG_TH = 32, ///< Non-MNFG RCD parity error TH
+    MCA_IMPE_NON_MNFG_TH       = 32, ///< Non-MNFG IMPE TH
     MCA_IUE_NON_MNFG_TH        = 8,  ///< Non-MNFG IUE TH
     MBA_RCE_NON_MNFG_TH        = 8,  ///< Non-MNFG RCE TH
     MBA_SCRUB_CE_NON_MNFG_TH   = 80, ///< Non-MNFG Scrub soft/inter CE TH
@@ -114,6 +115,26 @@ ThresholdResolution::ThresholdPolicy getIueTh()
 
 //------------------------------------------------------------------------------
 
+#ifdef __HOSTBOOT_MODULE
+
+ThresholdResolution::ThresholdPolicy getImpeTh()
+{
+    uint32_t th = MCA_IMPE_NON_MNFG_TH;
+
+    if ( mfgMode() )
+    {
+        th = MfgThresholdMgr::getInstance()->
+                           getThreshold( ATTR_MNFG_TH_MEMORY_IMPES );
+    }
+
+    return ThresholdResolution::ThresholdPolicy( th,
+                                                 ThresholdResolution::ONE_DAY );
+}
+
+#endif
+
+//------------------------------------------------------------------------------
+
 ThresholdResolution::ThresholdPolicy getRceThreshold()
 {
     uint32_t th = MBA_RCE_NON_MNFG_TH;
diff --git a/src/usr/diag/prdf/common/plat/mem/prdfMemThresholds.H b/src/usr/diag/prdf/common/plat/mem/prdfMemThresholds.H
index 35acf95cf..1c3769ea1 100755
--- a/src/usr/diag/prdf/common/plat/mem/prdfMemThresholds.H
+++ b/src/usr/diag/prdf/common/plat/mem/prdfMemThresholds.H
@@ -65,6 +65,11 @@ ThresholdResolution::ThresholdPolicy getRcdParityTh();
  */
 ThresholdResolution::ThresholdPolicy getIueTh();
 
+/**
+ * @brief Returns IMPE threshold policy.
+ */
+ThresholdResolution::ThresholdPolicy getImpeTh();
+
 #endif
 
 /**
diff --git a/src/usr/diag/prdf/common/plat/mem/prdfP9McaDataBundle.H b/src/usr/diag/prdf/common/plat/mem/prdfP9McaDataBundle.H
index 9dd9f632a..ed505c1d7 100644
--- a/src/usr/diag/prdf/common/plat/mem/prdfP9McaDataBundle.H
+++ b/src/usr/diag/prdf/common/plat/mem/prdfP9McaDataBundle.H
@@ -123,6 +123,12 @@ class McaDataBundle : public DataBundle
     /** Threshold table for IUEs. Threshold per DIMM */
     std::map<uint8_t, TimeBasedThreshold> iv_iueTh;
 
+    /** Threshold table for IMPEs. Threshold per rank */
+    std::map<MemRank, TimeBasedThreshold> iv_impeThMap;
+
+    /** Map to keep track of which DRAMs on which ranks have reported IMPEs */
+    std::map<MemRank, std::vector<uint8_t>> iv_impeDramMap;
+
     #endif
 };
 
diff --git a/src/usr/diag/prdf/common/plat/mem/prdfP9Mca_common.C b/src/usr/diag/prdf/common/plat/mem/prdfP9Mca_common.C
index 6a064bf87..cac225d23 100644
--- a/src/usr/diag/prdf/common/plat/mem/prdfP9Mca_common.C
+++ b/src/usr/diag/prdf/common/plat/mem/prdfP9Mca_common.C
@@ -257,6 +257,21 @@ PRDF_PLUGIN_DEFINE( p9_mca, AnalyzeMaintIue );
 
 //------------------------------------------------------------------------------
 
+/**
+ * @brief  MCAECCFIR[19,39] - Mainline and Maint IMPE
+ * @param  i_chip MCA chip.
+ * @param  io_sc  The step code data struct.
+ * @return SUCCESS
+ */
+int32_t AnalyzeImpe( ExtensibleChip * i_chip, STEP_CODE_DATA_STRUCT & io_sc )
+{
+    MemEcc::analyzeImpe<TYPE_MCA, McaDataBundle *>( i_chip, io_sc );
+    return SUCCESS; // nothing to return to rule code
+}
+PRDF_PLUGIN_DEFINE( p9_mca, AnalyzeImpe );
+
+//------------------------------------------------------------------------------
+
 } // end namespace p9_mca
 
 } // end namespace PRDF
diff --git a/src/usr/diag/prdf/common/plat/p9/p9_mca.rule b/src/usr/diag/prdf/common/plat/p9/p9_mca.rule
index 4f54882b0..cb7b1b83b 100644
--- a/src/usr/diag/prdf/common/plat/p9/p9_mca.rule
+++ b/src/usr/diag/prdf/common/plat/p9/p9_mca.rule
@@ -424,7 +424,7 @@ group gMCAECCFIR filter singlebit, cs_root_cause( 14, 17, 37 )
     /** MCAECCFIR[19]
      *  Mainline read IMPE
      */
-    (rMCAECCFIR, bit(19)) ? mainline_impe_handling;
+    (rMCAECCFIR, bit(19)) ? impe_handling;
 
     /** MCAECCFIR[20:27]
      *  Maintenance MPE
@@ -489,7 +489,7 @@ group gMCAECCFIR filter singlebit, cs_root_cause( 14, 17, 37 )
     /** MCAECCFIR[39]
      *  Maintenance IMPE
      */
-    (rMCAECCFIR, bit(39)) ? maintenance_impe_handling;
+    (rMCAECCFIR, bit(39)) ? impe_handling;
 
     /** MCAECCFIR[40]
      *  spare
diff --git a/src/usr/diag/prdf/common/plat/p9/p9_mca_actions.rule b/src/usr/diag/prdf/common/plat/p9/p9_mca_actions.rule
index d3ebc436e..95d591c49 100644
--- a/src/usr/diag/prdf/common/plat/p9/p9_mca_actions.rule
+++ b/src/usr/diag/prdf/common/plat/p9/p9_mca_actions.rule
@@ -85,8 +85,6 @@ actionclass mainline_iue_handling
     funccall("AnalyzeMainlineIue");
 };
 
-actionclass mainline_impe_handling    { TBDDefaultCallout; }; # TODO RTC 165384
-
 /**  Handle Maintenance IUEs */
 actionclass maintenance_iue_handling
 {
@@ -95,7 +93,7 @@ actionclass maintenance_iue_handling
     funccall("AnalyzeMaintIue");
 };
 
-actionclass maintenance_impe_handling { TBDDefaultCallout; }; # TODO RTC 165384
+actionclass impe_handling { funccall("AnalyzeImpe"); };
 
 /** MCA/UE algroithm, threshold 5 per day */
 actionclass mca_ue_algorithm_th_5perDay
diff --git a/src/usr/diag/prdf/common/plat/p9/p9_mca_regs.rule b/src/usr/diag/prdf/common/plat/p9/p9_mca_regs.rule
index bf2fd3fd1..d146517d1 100644
--- a/src/usr/diag/prdf/common/plat/p9/p9_mca_regs.rule
+++ b/src/usr/diag/prdf/common/plat/p9/p9_mca_regs.rule
@@ -220,3 +220,10 @@
         capture  group default;
     };
 
+    register MSR
+    {
+        name        "P9 Mark Shadow Register";
+        scomaddr    0x07010A0C;
+        capture     group default;
+    };
+