PM: PGPE hang fix during VDM droop workaround

    -Fixed stop entry suspend ACK in CME to resolve PGPE hang
    -Masked PARTIAL_GOOD error in PGPE when doing core throttle
    multicast.

    Key_Cronus_Test=PM_REGRESS

Change-Id: I56888585ddaf429a4ffd7ebdc13b7b7c6b5b8cc5
CQ: SW437277
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/62082
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>

import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_cme_stop_threads.c

@@ -60,6 +60,8 @@ p9_cme_stop_core_error_handler(uint32_t core, uint32_t core_error, uint32_t pani
 void
 p9_cme_stop_eval_eimr_override()
 {
+    wrteei(0);
+
     g_eimr_override      &= ~BITS64(12, 10);
     data64_t mask_irqs    = {0};
     mask_irqs.words.lower = 0;
@@ -103,6 +105,8 @@ p9_cme_stop_eval_eimr_override()
     {
         out32(G_CME_LCL_FLAGS_CLR, BIT32(CME_FLAGS_DROOP_SUSPEND_ENTRY));
     }
+
+    wrteei(1);
 }
 
 #if !DISABLE_PERIODIC_CORE_QUIESCE && (NIMBUS_DD_LEVEL == 20 || NIMBUS_DD_LEVEL == 21 || CUMULUS_DD_LEVEL == 10)

import/chips/p9/procedures/ppe_closed/pgpe/pstate_gpe/p9_pgpe_pstate.h

@@ -108,7 +108,7 @@ enum PGPE_CORE_THROTTLE
     // Include core offline, address error, and timeout. The timeout is
     // included to avoid an extra mtmsr in the event we need to cleanup
     // from SW407201
-    MSR_THROTTLE_MASK               = 0x29000000,
+    MSR_THROTTLE_MASK               = 0x39000000,
     WORKAROUND_SCOM_MULTICAST_WRITE = 0x69010800,
     THROTTLE_SCOM_MULTICAST_WRITE   = 0x69010A9E,
     CORE_IFU_THROTTLE               = 0x80000000,