xnu-792.13.8.tar.gz

[apple/xnu.git] / osfmk / ppc / cpu.c

diff --git a/osfmk/ppc/cpu.c b/osfmk/ppc/cpu.c
index 30d9bb9122a405805184393306537247b66ccd05..234cd8e023b8e82e22d590dd9924d4b3d2b16936 100644 (file)
--- a/osfmk/ppc/cpu.c
+++ b/osfmk/ppc/cpu.c
@@ -1,24 +1,31 @@
 /*
  * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
+ * 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
+ *
+ * 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_HEADER_END@
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  */
 
 #include <mach/mach_types.h>
@@ -32,6 +39,7 @@
 #include <kern/thread.h>
 #include <kern/sched_prim.h>
 #include <kern/processor.h>
+#include <kern/pms.h>
 
 #include <vm/pmap.h>
 #include <IOKit/IOHibernatePrivate.h>
@@ -49,7 +57,6 @@
 #include <ppc/Diagnostics.h>
 #include <ppc/trap.h>
 #include <ppc/machine_cpu.h>
-#include <ppc/pms.h>
 #include <ppc/rtclock.h>
 
 decl_mutex_data(static,ppt_lock);
@@ -66,9 +73,9 @@ static unsigned int   rht_state = 0;
 decl_simple_lock_data(static,SignalReadyLock);
 
 struct SIGtimebase {
-       boolean_t       avail;
-       boolean_t       ready;
-       boolean_t       done;
+       volatile boolean_t      avail;
+       volatile boolean_t      ready;
+       volatile boolean_t      done;
        uint64_t        abstime;
 };
 
@@ -121,8 +128,9 @@ cpu_init(
                mttbu(proc_info->save_tbu);
                mttb(proc_info->save_tbl);
        }
-       
-       setTimerReq();                          /* Now that the time base is sort of correct, request the next timer pop */
+
+       proc_info->rtcPop = EndOfAllTime;                       /* forget any existing decrementer setting */
+       etimer_resync_deadlines();                              /* Now that the time base is sort of correct, request the next timer pop */
 
        proc_info->cpu_type = CPU_TYPE_POWERPC;
        proc_info->cpu_subtype = (cpu_subtype_t)proc_info->pf.rptdProc;
@@ -706,7 +714,7 @@ cpu_sync_timebase(
                                                        (unsigned int)&syncClkSpot) != KERN_SUCCESS)
                continue;
 
-       while (*(volatile int *)&(syncClkSpot.avail) == FALSE)
+       while (syncClkSpot.avail == FALSE)
                continue;
 
        isync();
@@ -724,11 +732,10 @@ cpu_sync_timebase(
 
        syncClkSpot.ready = TRUE;
 
-       while (*(volatile int *)&(syncClkSpot.done) == FALSE)
+       while (syncClkSpot.done == FALSE)
                continue;
 
-       setTimerReq();                                                                  /* Start the timer */
-       
+       etimer_resync_deadlines();                                                                      /* Start the timer */
        (void)ml_set_interrupts_enabled(intr);
 }
 
@@ -761,7 +768,8 @@ cpu_timebase_signal_handler(
                                                
        timebaseAddr->avail = TRUE;
 
-       while (*(volatile int *)&(timebaseAddr->ready) == FALSE);
+       while (timebaseAddr->ready == FALSE)
+               continue;
 
        if(proc_info->time_base_enable !=  (void(*)(cpu_id_t, boolean_t ))NULL)
                proc_info->time_base_enable(proc_info->cpu_id, TRUE);