IOTA

- implement iota panic ("dead") codes
- fix uih interrupt window condition leading to iota machine stack
  overflow and/or phantom interrupt detection
- fix iota static machine stack init value
- refactor UIH for both IOTA and PK to pull the priority table from a
  common source
- the entire INTERCME0 IRQ handler in PK is executed with EE=0, for IOTA
  this can only be emulated by masking all higher priorities in the UIH
  for that particular task/interrupt priority group

Change-Id: I8357518b02922d3328aff4d80003ac3030fdd5e7
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/44135
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Brian T. Vanderpool <vanderp@us.ibm.com>
Reviewed-by: Michael S. Floyd <mfloyd@us.ibm.com>
Reviewed-by: Gregory S. Still <stillgs@us.ibm.com>

1 files changed, 0 insertions, 13 deletions

diff --git a/import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_cme_stop_irq_handlers.c b/import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_cme_stop_irq_handlers.c
index b54bb458..c03a7537 100644
--- a/import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_cme_stop_irq_handlers.c
+++ b/import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_cme_stop_irq_handlers.c
@@ -79,12 +79,9 @@ p9_cme_stop_pcwu_handler(void* arg, PkIrqId irq)
     {
         out32(CME_LCL_EIMR_OR, BITS32(12, 10));
 #if defined(__IOTA__)
-        wrteei(1);
         p9_cme_stop_exit();
-
         // re-evaluate g_eimr_override then restore eimr
         p9_cme_stop_eval_eimr_override();
-        iota_uih_irq_vec_restore();
 #else
         pk_semaphore_post((PkSemaphore*)arg);
 #endif
@@ -179,12 +176,9 @@ p9_cme_stop_spwu_handler(void* arg, PkIrqId irq)
         out32(CME_LCL_EIMR_OR, BITS32(12, 10));
         PK_TRACE_INF("Launching exit thread");
 #if defined(__IOTA__)
-        wrteei(1);
         p9_cme_stop_exit();
-
         // re-evaluate g_eimr_override then restore eimr
         p9_cme_stop_eval_eimr_override();
-        iota_uih_irq_vec_restore();
 #else
         pk_semaphore_post((PkSemaphore*)arg);
 #endif
@@ -204,12 +198,9 @@ p9_cme_stop_rgwu_handler(void* arg, PkIrqId irq)
     PK_TRACE_INF("RGWU Handler Trigger %d", irq);
     out32(CME_LCL_EIMR_OR, BITS32(12, 10));
 #if defined(__IOTA__)
-    wrteei(1);
     p9_cme_stop_exit();
-
     // re-evaluate g_eimr_override then restore eimr
     p9_cme_stop_eval_eimr_override();
-    iota_uih_irq_vec_restore();
 #else
     pk_semaphore_post((PkSemaphore*)arg);
 #endif
@@ -224,14 +215,10 @@ p9_cme_stop_enter_handler(void* arg, PkIrqId irq)
     PK_TRACE_INF("PM_ACTIVE Handler Trigger %d", irq);
     out32(CME_LCL_EIMR_OR, BITS32(12, 10));
 #if defined(__IOTA__)
-    wrteei(1);
-
     // The actual entry sequence
     p9_cme_stop_entry();
-
     // re-evaluate g_eimr_override then restore eimr
     p9_cme_stop_eval_eimr_override();
-    iota_uih_irq_vec_restore();
 #else
     pk_semaphore_post((PkSemaphore*)arg);
 #endif