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authorThomas Schwinge <tschwinge@gnu.org>2007-02-04 14:09:30 +0000
committerThomas Schwinge <tschwinge@gnu.org>2009-06-18 00:27:02 +0200
commit8f8ef5d5634f5ae4d43c46044555dba1073f5f9a (patch)
tree313577234da5c721d0249a328bc9180cf2471558
parent8005e98d3e6a6c1204803e4c2013863eba9571f4 (diff)
2007-02-04 Thomas Schwinge <tschwinge@gnu.org>
* kern/timer.h: Add some comments from... * i386/i386/timer.h: ... here and remove this file.
-rw-r--r--ChangeLog5
-rw-r--r--i386/i386/timer.h71
-rw-r--r--kern/timer.h27
3 files changed, 32 insertions, 71 deletions
diff --git a/ChangeLog b/ChangeLog
index e22d87e..ace34e2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2007-02-04 Thomas Schwinge <tschwinge@gnu.org>
+
+ * kern/timer.h: Add some comments from...
+ * i386/i386/timer.h: ... here and remove this file.
+
2007-01-26 Thomas Schwinge <tschwinge@gnu.org>
* doc/mach.texi: Fix the last change.
diff --git a/i386/i386/timer.h b/i386/i386/timer.h
deleted file mode 100644
index b74965d..0000000
--- a/i386/i386/timer.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Mach Operating System
- * Copyright (c) 1991 Carnegie Mellon University
- * All Rights Reserved.
- *
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * Carnegie Mellon requests users of this software to return to
- *
- * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
- * School of Computer Science
- * Carnegie Mellon University
- * Pittsburgh PA 15213-3890
- *
- * any improvements or extensions that they make and grant Carnegie Mellon
- * the rights to redistribute these changes.
- */
-
-#ifndef _I386_TIMER_H_
-#define _I386_TIMER_H_
-
-/*
- * Machine dependent timer definitions.
- */
-
-#include <platforms.h>
-
-#ifdef SYMMETRY
-
-/*
- * TIMER_MAX is not used on the Sequent because a 32-bit rollover
- * timer does not need to be adjusted for maximum value.
- */
-
-/*
- * TIMER_RATE is the rate of the timer in ticks per second.
- * It is used to calculate percent cpu usage.
- */
-
-#define TIMER_RATE 1000000
-
-/*
- * TIMER_HIGH_UNIT is the unit for high_bits in terms of low_bits.
- * Setting it to TIMER_RATE makes the high unit seconds.
- */
-
-#define TIMER_HIGH_UNIT TIMER_RATE
-
-/*
- * TIMER_ADJUST is used to adjust the value of a timer after
- * it has been copied into a time_value_t. No adjustment is needed
- * on Sequent because high_bits is in seconds.
- */
-
-/*
- * MACHINE_TIMER_ROUTINES should defined if the timer routines are
- * implemented in machine-dependent code (e.g. assembly language).
- */
-#define MACHINE_TIMER_ROUTINES
-
-#endif
-
-#endif /* _I386_TIMER_H_ */
diff --git a/kern/timer.h b/kern/timer.h
index 4146237..4018236 100644
--- a/kern/timer.h
+++ b/kern/timer.h
@@ -36,10 +36,37 @@
* as a result. Service timers once an hour.
*/
+/*
+ * TIMER_MAX is needed if a 32-bit rollover timer needs to be adjusted for
+ * maximum value.
+ */
+#undef TIMER_MAX
+
+/*
+ * TIMER_RATE is the rate of the timer in ticks per second. It is used to
+ * calculate percent cpu usage.
+ */
#define TIMER_RATE 1000000
+
+/*
+ * TIMER_HIGH_UNIT is the unit for high_bits in terms of low_bits.
+ * Setting it to TIMER_RATE makes the high unit seconds.
+ */
#define TIMER_HIGH_UNIT TIMER_RATE
+
+/*
+ * TIMER_ADJUST is used to adjust the value of a timer after it has been
+ * copied into a time_value_t. No adjustment is needed if high_bits is in
+ * seconds.
+ */
#undef TIMER_ADJUST
+/*
+ * MACHINE_TIMER_ROUTINES should defined if the timer routines are
+ * implemented in machine-dependent code (e.g. assembly language).
+ */
+#undef MACHINE_TIMER_ROUTINES
+
#else /* STAT_TIME */
/*
* Machine dependent definitions based on hardware support.