xnu-3789.51.2.tar.gz

[apple/xnu.git] / osfmk / kern / machine.h

diff --git a/osfmk/kern/machine.h b/osfmk/kern/machine.h
index 61acf29f8c7ee555cf7b02e12addee3f75eba8ab..37d69bf887d8e926b52a441b825a7932d9d3bc44 100644 (file)
--- a/osfmk/kern/machine.h
+++ b/osfmk/kern/machine.h
@@ -1,31 +1,29 @@
 /*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2008 Apple Inc. All rights reserved.
  *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * This file contains Original Code and/or Modifications of Original Code 
- * as defined in and that are subject to the Apple Public Source License 
- * Version 2.0 (the 'License'). You may not use this file except in 
- * compliance with the License.  The rights granted to you under the 
- * License may not be used to create, or enable the creation or 
- * redistribution of, unlawful or unlicensed copies of an Apple operating 
- * system, or to circumvent, violate, or enable the circumvention or 
- * violation of, any terms of an Apple operating system software license 
- * agreement.
- *
- * Please obtain a copy of the License at 
- * http://www.opensource.apple.com/apsl/ and read it before using this 
- * file.
- *
- * The Original Code and all software distributed under the License are 
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
- * Please see the License for the specific language governing rights and 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
  * limitations under the License.
- *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ * 
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
@@ -48,7 +46,7 @@ extern void           processor_up(
 extern void            processor_offline(
                                        processor_t             processor);
 
-extern void            processor_start_thread(void);
+extern void            processor_start_thread(void *machine_param);
 
 /*
  * Must be implemented in machine dependent code.
@@ -92,9 +90,20 @@ extern thread_t              machine_processor_shutdown(
 
 extern void machine_idle(void);
 
+extern void machine_track_platform_idle(boolean_t);
+
+/* Signals a processor to bring it out of idle */
 extern void machine_signal_idle(
                                        processor_t         processor);
 
+/* Signals a processor to bring it out of idle unless canceled */
+extern void machine_signal_idle_deferred(
+                                       processor_t         processor);
+
+/* Cancels an outstanding machine_signal_idle_deferred, if this is supported */
+extern void machine_signal_idle_cancel(
+                                       processor_t         processor);
+
 extern void halt_cpu(void);
 
 extern void halt_all_cpus(
@@ -109,9 +118,34 @@ extern char *machine_boot_info(
  * levels of return pc information.
  */
 extern void machine_callstack(
-                                       natural_t           *buf,
+                                       uintptr_t           *buf,
                                        vm_size_t           callstack_max);
 
 extern void consider_machine_collect(void);
 
+/*
+ * Machine-dependent routine to inform platform layer and external
+ * CPU power management about context switches
+ */
+
+extern void    machine_thread_going_on_core(thread_t   new_thread,
+                                       int             urgency,
+                                       uint64_t        sched_latency,
+                                       uint64_t        dispatch_time);
+
+extern void machine_thread_going_off_core(thread_t old_thread, boolean_t thread_terminating, uint64_t last_dispatch);
+
+extern void machine_max_runnable_latency(uint64_t bg_max_latency,
+                                                                                uint64_t default_max_latency,
+                                                                                uint64_t realtime_max_latency);
+
+extern void machine_work_interval_notify(thread_t thread,
+                                                                                uint64_t work_id,
+                                                                                uint64_t start_abstime,
+                                                                                uint64_t finish_abstime,
+                                                                                uint64_t deadline_abstime,
+                                                                                uint64_t next_start_abstime,
+                                                                                uint16_t urgency,
+                                                                                uint32_t flags);
+
 #endif /* _KERN_MACHINE_H_ */