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, 3 insertions, 3 deletions

diff --git a/pk/std/std_common.h b/pk/std/std_common.h
index 3c8fda2d..38bc1621 100644
--- a/pk/std/std_common.h
+++ b/pk/std/std_common.h
@@ -26,14 +26,14 @@
 /// Check for interrupts pending in the interrupt status register while the IRQ
 /// is computed.  The IRQ is expected to be stored in r4. If no IRQ is
 /// pending then load the phantom irq # (EXTERNAL_IRQS).
-/// Only the following registers have been saved off and can be used:
-/// r3, r4, r5, r6, cr0, lr
+/// 
+/// r1, r2, r3, and r13 must not be modified.  All other registers may be used.
 ///
     .macro hwmacro_get_ext_irq
         
         _lvdg       d5, STD_LCL_EISTR    #load the 64bit interrupt status into d5
         cntlzw      r4, r5
-        cmpwible    r4, 31, external_irq_found   #branch if irq is lt or eq to 31
+        cmpwible    r4, 31, call_external_irq_handler   #branch if irq is lt or eq to 31
         
         ## No IRQ pending in r5.  Try r6.
         ## Note: irq # will be 64 (phantom irq) if no bits were set in either register