forked from Minki/linux
[PATCH] ntp: cleanup defines and comments
Remove a few unused defines and remove obsolete information from comments. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Cc: john stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -6,11 +6,6 @@
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#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
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#define CLOCK_TICK_FACTOR 20 /* Factor of both 1000000 and CLOCK_TICK_RATE */
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#define FINETUNE \
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((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
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(1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
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<< (SHIFT_SCALE-SHIFT_HZ)) / HZ)
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typedef unsigned long cycles_t;
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static inline cycles_t get_cycles(void)
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@ -12,9 +12,6 @@
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#define CLOCK_TICK_RATE (CONFIG_BUS_CLOCK / CONFIG_TIMER_DIVIDE)
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#define CLOCK_TICK_FACTOR 20 /* Factor of both 1000000 and CLOCK_TICK_RATE */
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#define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
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(1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
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<< (SHIFT_SCALE-SHIFT_HZ)) / HZ)
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#ifdef __KERNEL__
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/*
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@ -17,9 +17,6 @@
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#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
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#define CLOCK_TICK_FACTOR 20 /* Factor of both 1000000 and CLOCK_TICK_RATE */
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#define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
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(1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
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<< (SHIFT_SCALE-SHIFT_HZ)) / HZ)
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typedef unsigned long cycles_t;
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@ -31,9 +31,6 @@
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#define CLOCK_TICK_RATE 1193180 /* (everyone is using this value) */
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#define CLOCK_TICK_FACTOR 20 /* Factor of both 10^6 and CLOCK_TICK_RATE */
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#define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
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(1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
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<< (SHIFT_SCALE-SHIFT_HZ)) / HZ)
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#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
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extern unsigned long ccount_per_jiffy;
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@ -74,24 +74,17 @@
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#define MAXTC 10 /* maximum time constant (shift) */
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/*
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* The SHIFT_SCALE define establishes the decimal point of the time_phase
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* variable which serves as an extension to the low-order bits of the
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* system clock variable. The SHIFT_UPDATE define establishes the decimal
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* point of the time_offset variable which represents the current offset
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* with respect to standard time. The FINENSEC define represents 1 nsec in
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* scaled units.
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* The SHIFT_UPDATE define establishes the decimal point of the
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* time_offset variable which represents the current offset with
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* respect to standard time.
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*
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* SHIFT_USEC defines the scaling (shift) of the time_freq and
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* time_tolerance variables, which represent the current frequency
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* offset and maximum frequency tolerance.
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*
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* FINENSEC is 1 ns in SHIFT_UPDATE units of the time_phase variable.
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*/
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#define SHIFT_SCALE 22 /* phase scale (shift) */
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#define SHIFT_UPDATE (SHIFT_HZ + 1) /* time offset scale (shift) */
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#define SHIFT_USEC 16 /* frequency offset scale (shift) */
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#define SHIFT_NSEC 12 /* kernel frequency offset scale */
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#define FINENSEC (1L << (SHIFT_SCALE - 10)) /* ~1 ns in phase units */
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#define MAXPHASE 512000L /* max phase error (us) */
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#define MAXFREQ (512L << SHIFT_USEC) /* max frequency error (ppm) */
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