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 ce77bd868095d0e733b66df985f89e6055698ab8..37d69bf887d8e926b52a441b825a7932d9d3bc44 100644 (file)
--- a/osfmk/kern/machine.h
+++ b/osfmk/kern/machine.h
@@ -1,23 +1,29 @@
 /*
 /*

- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2008 Apple Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

  * 
  * 

- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * 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.

  * 
  * 

- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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,
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
 /*
  * @OSF_COPYRIGHT@
  */
 /*
  * @OSF_COPYRIGHT@


@@ -40,7 +46,7 @@ extern void           processor_up(
 extern void            processor_offline(
                                        processor_t             processor);
 
 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.
 
 /*
  * Must be implemented in machine dependent code.


@@ -84,9 +90,20 @@ extern thread_t              machine_processor_shutdown(
 
 extern void machine_idle(void);
 
 
 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);
 
 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(
 extern void halt_cpu(void);
 
 extern void halt_all_cpus(


@@ -101,9 +118,34 @@ extern char *machine_boot_info(
  * levels of return pc information.
  */
 extern void machine_callstack(
  * 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);
 
                                        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_ */
 #endif /* _KERN_MACHINE_H_ */