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#ifndef _LINUX_JIFFIES_H
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#ifndef _LINUX_JIFFIES_H
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#define _LINUX_JIFFIES_H
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#define _LINUX_JIFFIES_H
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//#include
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#include
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#include
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#include
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#include
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#include
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//#include
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#include
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//#include
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//#include
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//#include          /* for HZ */
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//#include          /* for HZ */
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# define SHIFT_HZ	13
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# define SHIFT_HZ	13
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#else
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#else
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# error Invalid value of HZ.
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# error Invalid value of HZ.
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#endif
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#endif
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/* LATCH is used in the interval timer and ftape setup. */
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#define LATCH  ((CLOCK_TICK_RATE + HZ/2) / HZ) /* For divider */
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/* Suppose we want to divide two numbers NOM and DEN: NOM/DEN, then we can
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/* Suppose we want to divide two numbers NOM and DEN: NOM/DEN, then we can
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 * improve accuracy by shifting LSH bits, hence calculating:
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 * improve accuracy by shifting LSH bits, hence calculating:
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 *     (NOM << LSH) / DEN
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 *     (NOM << LSH) / DEN
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 * This however means trouble for large NOM, because (NOM << LSH) may no
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 * This however means trouble for large NOM, because (NOM << LSH) may no
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 *   - (NOM % DEN) fits in (32 - LSH) bits.
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 *   - (NOM % DEN) fits in (32 - LSH) bits.
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 */
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 */
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#define SH_DIV(NOM,DEN,LSH) (   (((NOM) / (DEN)) << (LSH))              \
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#define SH_DIV(NOM,DEN,LSH) (   (((NOM) / (DEN)) << (LSH))              \
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                             + ((((NOM) % (DEN)) << (LSH)) + (DEN) / 2) / (DEN))
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                             + ((((NOM) % (DEN)) << (LSH)) + (DEN) / 2) / (DEN))
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/* HZ is the requested value. ACTHZ is actual HZ ("<< 8" is for accuracy) */
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/* LATCH is used in the interval timer and ftape setup. */
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#define LATCH ((CLOCK_TICK_RATE + HZ/2) / HZ)	/* For divider */
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#define ACTHZ (SH_DIV (CLOCK_TICK_RATE, LATCH, 8))
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extern int register_refined_jiffies(long clock_tick_rate);
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/* TICK_NSEC is the time between ticks in nsec assuming real ACTHZ */
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/* TICK_NSEC is the time between ticks in nsec assuming SHIFTED_HZ */
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#define TICK_NSEC (SH_DIV (1000000UL * 1000, ACTHZ, 8))
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#define TICK_NSEC ((NSEC_PER_SEC+HZ/2)/HZ)
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/* TICK_USEC is the time between ticks in usec assuming fake USER_HZ */
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/* TICK_USEC is the time between ticks in usec assuming fake USER_HZ */
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#define TICK_USEC ((1000000UL + USER_HZ/2) / USER_HZ)
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#define TICK_USEC ((1000000UL + USER_HZ/2) / USER_HZ)
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/* some arch's have a small-data section that can be accessed register-relative
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 * but that can only take up to, say, 4-byte variables. jiffies being part of
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 * an 8-byte variable may not be correctly accessed unless we force the issue
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 */
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#define __jiffy_data  __attribute__((section(".data")))
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/* TICK_USEC_TO_NSEC is the time between ticks in nsec assuming real ACTHZ and	*/
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/*
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/* a value TUSEC for TICK_USEC (can be set bij adjtimex)		*/
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 * The 64-bit value is not atomic - you MUST NOT read it
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#define TICK_USEC_TO_NSEC(TUSEC) (SH_DIV (TUSEC * USER_HZ * 1000, ACTHZ, 8))
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 * without sampling the sequence number in jiffies_lock.
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 * wouldn't care). Gcc is currently neither.
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 * wouldn't care). Gcc is currently neither.
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 */
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 */
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#define time_after(a,b)		\
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#define time_after(a,b)		\
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	(typecheck(unsigned long, a) && \
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	(typecheck(unsigned long, a) && \
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	 typecheck(unsigned long, b) && \
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	 typecheck(unsigned long, b) && \
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	 ((long)(b) - (long)(a) < 0))
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	 ((long)((b) - (a)) < 0))
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#define time_before(a,b)	time_after(b,a)
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#define time_before(a,b)	time_after(b,a)
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#define time_after_eq(a,b)	\
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#define time_after_eq(a,b)	\
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	(typecheck(unsigned long, a) && \
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	(typecheck(unsigned long, a) && \
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	 typecheck(unsigned long, b) && \
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	 typecheck(unsigned long, b) && \
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	 ((long)(a) - (long)(b) >= 0))
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	 ((long)((a) - (b)) >= 0))
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#define time_before_eq(a,b)	time_after_eq(b,a)
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#define time_before_eq(a,b)	time_after_eq(b,a)
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/*
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/*
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 * These must be used when utilizing jiffies_64 (i.e. return value of
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 * These must be used when utilizing jiffies_64 (i.e. return value of
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 * get_jiffies_64() */
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 * get_jiffies_64() */
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#define time_after64(a,b)	\
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#define time_after64(a,b)	\
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	(typecheck(__u64, a) &&	\
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	(typecheck(__u64, a) &&	\
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	 typecheck(__u64, b) && \
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	 typecheck(__u64, b) && \
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	 ((__s64)(b) - (__s64)(a) < 0))
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	 ((__s64)((b) - (a)) < 0))
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#define time_before64(a,b)	time_after64(b,a)
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#define time_before64(a,b)	time_after64(b,a)
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#define time_after_eq64(a,b)	\
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#define time_after_eq64(a,b)	\
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	(typecheck(__u64, a) && \
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	(typecheck(__u64, a) && \
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	 typecheck(__u64, b) && \
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	 typecheck(__u64, b) && \
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	 ((__s64)(a) - (__s64)(b) >= 0))
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	 ((__s64)((a) - (b)) >= 0))
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#define time_before_eq64(a,b)	time_after_eq64(b,a)
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#define time_before_eq64(a,b)	time_after_eq64(b,a)
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#define time_in_range64(a, b, c) \
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#define time_in_range64(a, b, c) \