PM (Cronus): Add processor id for errors from p9_activate_stop15_cores

- reformatted error output for readability
- removed FAPI_ASSERT FFDC as these are not useful in Cronus;  moved the FFDC
  to printfs before the ASSERT
- Added isHalted() to ppe_utils
- added SSH and better SGPE oriented register FFDC
- removed extra setBit to core_sb buffer

Change-Id: Ie23f294b843b15a78b8d3ee036310631c0595904
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/44758
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Dev-Ready: Gregory S. Still <stillgs@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: RANGANATHPRASAD G. BRAHMASAMUDRA <prasadbgr@in.ibm.com>
Reviewed-by: Juan R. Medina <jrmedina@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/45304
Reviewed-by: Hostboot Team <hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

src/import/chips/p9/procedures/hwp/lib/p9_ppe_utils.C

@@ -641,6 +641,26 @@ fapi_try_exit:
 
 //-----------------------------------------------------------------------------
 
+fapi2::ReturnCode ppe_isHalted(
+    const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+    const uint64_t i_base_address,
+    bool* o_halted)
+{
+    fapi2::buffer<uint64_t> l_data64;
+
+    FAPI_TRY(getScom ( i_target,
+                       i_base_address + PPE_XIRAMDBG,
+                       l_data64 ),
+             "Failed reading XIRAMDBG register!" );
+
+    *o_halted = l_data64.getBit<0>();
+
+fapi_try_exit:
+    return fapi2::current_err;
+}
+
+//-----------------------------------------------------------------------------
+
 #ifndef  __HOSTBOOT_MODULE
 
 fapi2::ReturnCode scom_regs_populate_name(

src/import/chips/p9/procedures/hwp/lib/p9_ppe_utils.H

@@ -491,6 +491,19 @@ fapi2::ReturnCode ppe_write_iar(
     const uint64_t i_base_address,
     const uint64_t i_address );
 
+
+///--------------------------------------------------------------------------------------
+/// @brief Determine if the PPE is halted
+/// @param[in]   i_target        target
+/// @param[in]   i_base_address  base SCOM address of the PPE
+/// @param[out]  o_halted        boolean true if halted; false otherwise
+/// @return  fapi2::ReturnCode
+///--------------------------------------------------------------------------------------
+fapi2::ReturnCode ppe_isHalted(
+    const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+    const uint64_t i_base_address,
+    bool* o_halted);
+
 #ifndef  __HOSTBOOT_MODULE
 
 ///--------------------------------------------------------------------------------------