P9 L2err line delete HWP

--- fix bugs April 25th, 2017---
    Add the busy bit poll after writing the PRD Purge Engine
    Command Register
-----------------------------------------
1) Add the trigger(bit0) value and type(bit1:4) value of
   PRD Purge Engine Command Register wrriten actions which
   is missed in the previous HWP.
2) Take the reg_busy(bit9) into consideration.
   The purge engine command register is set only when reg_busy is 0.
3) When executing the line delete procedure, if the reg_busy is
   non-zero, we wait for 10ms and poll reg_busy again
   for a maximum count of 100.
4) Fix a bug for restart trace array option.
5) Report no error found if the start header is reached during
   the trace array searching.

Change-Id: I716601a68b5f8c3458e3085cc99a84fbee6f8c7b
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/38616
Reviewed-by: Peng Fei Gou <shgoupf@cn.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Joseph J. McGill <jmcgill@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/40876
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/import/chips/p9/procedures/hwp/cache/p9_l2err_extract.C b/src/import/chips/p9/procedures/hwp/cache/p9_l2err_extract.C
index d3b9ab6d7..68370f008 100644
--- a/src/import/chips/p9/procedures/hwp/cache/p9_l2err_extract.C
+++ b/src/import/chips/p9/procedures/hwp/cache/p9_l2err_extract.C
@@ -205,6 +205,17 @@ extern "C"
         {
             trace_index--;
 
+            if (p9_tracearray_is_trace_start_marker(trace_array[trace_index]) == fapi2::FAPI2_RC_SUCCESS)
+            {
+
+                FAPI_DBG("Head found at trace index %i, no error is found!", trace_index);
+                FAPI_DBG("%2X: 0x%016llX%016llX", trace_index, trace_array[trace_index].get<uint64_t>( 0 ),
+                         trace_array[trace_index].get<uint64_t>( 1 ));
+                error_found = false;
+                ce_ue = true;
+                break;
+            }
+
             //Only look at data entries (ie ignore compression entries for now)
             if( !trace_array[trace_index].isBitClear( 88, 7 ) )
             {