PPB:New attribute ATTR_PMCR_MOST_RECENT_MODE for PMCR request

RTC:200788
Change-Id: I0da78fe23e594e80def8cafdc7e583928f87ab76
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/70436
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: HWSV CI <hwsv-ci+hostboot@us.ibm.com>
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Reviewed-by: RAHUL BATRA <rbatra@us.ibm.com>
Reviewed-by: Prem Shanker Jha <premjha2@in.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: Gregory S. Still <stillgs@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/70441
Reviewed-by: Sachin Gupta <sgupta2m@in.ibm.com>

src/import/chips/p9/procedures/xml/attribute_info/pm_hwp_attributes.xml

@@ -5,7 +5,7 @@
 <!--                                                                        -->
 <!-- OpenPOWER sbe Project                                                  -->
 <!--                                                                        -->
-<!-- Contributors Listed Below - COPYRIGHT 2017,2018                        -->
+<!-- Contributors Listed Below - COPYRIGHT 2017,2019                        -->
 <!-- [+] International Business Machines Corp.                              -->
 <!--                                                                        -->
 <!--                                                                        -->
@@ -360,6 +360,25 @@
     <initToZero/>
   </attribute>
   <!-- ********************************************************************* -->
+  <attribute>
+    <id>ATTR_PMCR_MOST_RECENT_MODE</id>
+    <targetType>TARGET_TYPE_PROC_CHIP</targetType>
+    <description>Enables the platform mode where the most recent PMCR update
+    will be the controlling value for Pstate changes. If disabled, 
+    the legacy "fastest one wins" algorithm is used.
+
+    Producer: p9_build_pstate_datablock
+
+    Consumers: p9_hcode_image_build ->
+                      PGPE Header
+                      CME Header
+    </description>
+    <valueType>uint8</valueType>
+    <enum>FALSE=0, TRUE=1</enum>
+    <writeable/>
+    <initToZero/>
+  </attribute>
+  <!-- ********************************************************************* -->
   <attribute>
     <id>ATTR_VDM_ENABLED</id>
     <targetType>TARGET_TYPE_PROC_CHIP</targetType>

src/import/chips/p9/procedures/xml/attribute_info/pm_plat_attributes.xml

@@ -2617,4 +2617,23 @@
     <mrwHide/>
     <default>1024</default>
   </attribute>
+  <!-- ********************************************************************* -->
+  <attribute>
+    <id>ATTR_PMCR_MOST_RECENT_MODE</id>
+    <targetType>TARGET_TYPE_PROC_CHIP</targetType>
+    <description>Enables the platform mode where the most recent PMCR update
+    will be the controlling value for Pstate changes. If disabled, 
+    the legacy "fastest one wins" algorithm is used.
+
+    Producer: p9_build_pstate_datablock
+
+    Consumers: p9_hcode_image_build ->
+                      PGPE Header
+                      CME Header
+    </description>
+    <valueType>uint8</valueType>
+    <enum>FALSE=0, TRUE=1</enum>
+    <writeable/>
+    <initToZero/>
+  </attribute>
 </attributes>