From dcd30b189cc3879278285db616c7baecf5f6493f Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 11 Oct 2007 11:15:50 +0200 Subject: x86_64: prepare shared lib/delay.c Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- arch/x86_64/lib/delay.c | 57 ------------------------------------------------- 1 file changed, 57 deletions(-) delete mode 100644 arch/x86_64/lib/delay.c (limited to 'arch/x86_64/lib/delay.c') diff --git a/arch/x86_64/lib/delay.c b/arch/x86_64/lib/delay.c deleted file mode 100644 index 2dbebd308347..000000000000 --- a/arch/x86_64/lib/delay.c +++ /dev/null @@ -1,57 +0,0 @@ -/* - * Precise Delay Loops for x86-64 - * - * Copyright (C) 1993 Linus Torvalds - * Copyright (C) 1997 Martin Mares - * - * The __delay function must _NOT_ be inlined as its execution time - * depends wildly on alignment on many x86 processors. - */ - -#include -#include -#include -#include -#include - -#ifdef CONFIG_SMP -#include -#endif - -int read_current_timer(unsigned long *timer_value) -{ - rdtscll(*timer_value); - return 0; -} - -void __delay(unsigned long loops) -{ - unsigned bclock, now; - - rdtscl(bclock); - do - { - rep_nop(); - rdtscl(now); - } - while((now-bclock) < loops); -} -EXPORT_SYMBOL(__delay); - -inline void __const_udelay(unsigned long xloops) -{ - __delay(((xloops * HZ * cpu_data[raw_smp_processor_id()].loops_per_jiffy) >> 32) + 1); -} -EXPORT_SYMBOL(__const_udelay); - -void __udelay(unsigned long usecs) -{ - __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */ -} -EXPORT_SYMBOL(__udelay); - -void __ndelay(unsigned long nsecs) -{ - __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */ -} -EXPORT_SYMBOL(__ndelay); -- cgit v1.2.3