Changes between Initial Version and Version 1 of kernel_context

Timestamp:

Oct 9, 2014, 12:58:33 PM (11 years ago)

Author:

alain

Comment:

--

kernel_context

@@ +1 @@
+= GIET-VM / Task context access functions =
+
+[[PageOutline]]
+
+The [source:soft/giet_vm/giet_common/utils.c utils.c] and [source:soft/giet_vm/giet_common/utils.h util.h] files define the functions used to access task contexts.
+
+They are prefixed by "_" to remind that they can only be executed by a processor in kernel mode.
+
+ === unsigned int _get_current_task_id( void ) ===
+This function returns the local index of the currently running task from the processor scheduler.
+
+ === unsigned int _get_task_slot( unsigned int gpid, unsigned int ltid, unsigned int slot )
+This function returns the content of a context ''slot'' for a task identified by the the ''gpid'' argument 
+(global processor index), and the ''ltid'' argument (local task index on the processor).
+
+ === void _set_task_slot( unsigned int gpid, unsigned int ltid, unsigned int slot, unsigned int value )
+This function writes ''value'' in the the context ''slot'' of the task identified by the the ''gpid'' argument 
+(global processor index), and the ''ltid'' argument (local task index on the processor).
+
+ === unsigned int _get_context_slot( unsigned int slot )
+This function returns the content of a context ''slot'' for the calling task.
+
+ === void _set_task_slot( unsigned int slot, unsigned int value )
+This function writes ''value'' in the the context ''slot'' of the running task.