xnu-517.12.7.tar.gz

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

diff --git a/osfmk/kern/sched.h b/osfmk/kern/sched.h
index 6f5c9d398bd32c0932ddb9555152541ed2194e4b..c6870f82bfc1ac08d7db4127c88968c52208223e 100644 (file)
--- a/osfmk/kern/sched.h
+++ b/osfmk/kern/sched.h
@@ -3,22 +3,19 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * 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. 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
+ * This 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.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -156,12 +153,14 @@
  *************************************************************************
  */
 
+#define BASEPRI_RTQUEUES       (BASEPRI_REALTIME + 1)                          /* 97 */
 #define BASEPRI_REALTIME       (MAXPRI - (NRQS / 4) + 1)                       /* 96 */
 
 #define MAXPRI_STANDARD                (BASEPRI_REALTIME - 1)                          /* 95 */
 
 #define MAXPRI_KERNEL          MAXPRI_STANDARD                                         /* 95 */
 #define BASEPRI_PREEMPT                (MAXPRI_KERNEL - 2)                                     /* 93 */
+#define BASEPRI_KERNEL         (MINPRI_KERNEL + 1)                                     /* 81 */
 #define MINPRI_KERNEL          (MAXPRI_KERNEL - (NRQS / 8) + 1)        /* 80 */
 
 #define MAXPRI_SYSTEM          (MINPRI_KERNEL - 1)                                     /* 79 */
@@ -182,23 +181,36 @@
 #define invalid_pri(pri) ((pri) < MINPRI || (pri) > MAXPRI)
 
 struct run_queue {
-       queue_head_t            queues[NRQS];           /* one for each priority */
-       decl_simple_lock_data(,lock)                    /* one lock for all queues */
-       int                                     bitmap[NRQBM];          /* run queue bitmap array */
        int                                     highq;                          /* highest runnable queue */
+       int                                     bitmap[NRQBM];          /* run queue bitmap array */
+       int                                     count;                          /* # of threads total */
        int                                     urgency;                        /* level of preemption urgency */
-       int                                     count;                          /* # of threads in queue */
+       queue_head_t            queues[NRQS];           /* one for each priority */
 };
 
 typedef struct run_queue       *run_queue_t;
 #define RUN_QUEUE_NULL         ((run_queue_t) 0)
 
-#define first_quantum(processor)       ((processor)->slice_quanta > 0)
+#define first_timeslice(processor)             ((processor)->timeslice > 0)
+
+#define        processor_timeslice_setup(processor, thread)                    \
+MACRO_BEGIN                                                                                                            \
+       (processor)->timeslice =                                                                        \
+               ((thread)->sched_mode & TH_MODE_TIMESHARE)?                             \
+                       (processor)->processor_set->timeshare_quanta: 1;        \
+MACRO_END
+
+#define thread_quantum_init(thread)                                                    \
+MACRO_BEGIN                                                                                                    \
+       (thread)->current_quantum =                                                     \
+               ((thread)->sched_mode & TH_MODE_REALTIME)?                      \
+                       (thread)->realtime.computation: std_quantum;    \
+MACRO_END
 
 /* Invoked at splsched by a thread on itself */
 #define csw_needed(thread, processor) (                                                                                \
        ((thread)->state & TH_SUSP)                                                                             ||              \
-       (first_quantum(processor)?                                                                                              \
+       (first_timeslice(processor)?                                                                                    \
         ((processor)->runq.highq > (thread)->sched_pri                         ||                      \
          (processor)->processor_set->runq.highq > (thread)->sched_pri) :               \
         ((processor)->runq.highq >= (thread)->sched_pri                        ||                      \
@@ -209,7 +221,7 @@ typedef struct run_queue    *run_queue_t;
  */
 
 /* Remove thread from its run queue */
-extern run_queue_t     rem_runq(
+extern run_queue_t     run_queue_remove(
                                                thread_t        thread);
 
 /* Periodic computation of load factors */