Minor changes to kernel API

-Removed support for fast irq handlers
-Removed sleep_absolute interface
-Removed pk_timer_create_nonpreemptible interface
-Removed pk_interrupt_preemption_enable/disable interfaces
-Removed references to critical/noncritical irqs
-Added application context interfaces
-Added bottom-half support
-Moved timer handler from interrupt to bottom-half
-Moved thread utility functions into a separate file

Change-Id: Ie39fe0363ef52b195a808a8390cc12c2c7478674
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/16898
Reviewed-by: Glenn R. Miles <milesg@us.ibm.com>
Reviewed-by: Thi N. Tran <thi@us.ibm.com>
Reviewed-by: Richard J. Knight <rjknight@us.ibm.com>
Reviewed-by: Gregory S. Still <stillgs@us.ibm.com>
Reviewed-by: Derk Rembold <rembold@de.ibm.com>
Tested-by: Derk Rembold <rembold@de.ibm.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/pk/kernel/pk_bh_core.c b/pk/kernel/pk_bh_core.c
new file mode 100644
index 00000000..8a6181cb
--- /dev/null
+++ b/pk/kernel/pk_bh_core.c
@@ -0,0 +1,29 @@
+//-----------------------------------------------------------------------------
+// *! (C) Copyright International Business Machines Corp. 2015
+// *! All Rights Reserved -- Property of IBM
+// *! *** IBM Confidential ***
+//-----------------------------------------------------------------------------
+
+/// \file pk_bh_core.c
+/// \brief PK bottom half APIs
+///
+///  The entry points in this file are considered 'core' routines that will
+///  always be present at runtime in any PK application.
+
+#include "pk.h"
+
+/// Statically initialize the bottom half queue
+PK_DEQUE_SENTINEL_STATIC_CREATE(_pk_bh_queue);
+
+void _pk_process_bh(void)
+{
+    PkBottomHalf *bh;
+    while((bh = (PkBottomHalf*)pk_deque_pop_front(&_pk_bh_queue)) != 0)
+    {
+        bh->bh_handler(bh->arg);
+    }
+    return;
+}
+
+
+#undef __PK_THREAD_CORE_C__