diff options
Diffstat (limited to 'old/xenolinux-2.4.16-sparse/arch/xeno/lib/delay.c')
-rw-r--r-- | old/xenolinux-2.4.16-sparse/arch/xeno/lib/delay.c | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/old/xenolinux-2.4.16-sparse/arch/xeno/lib/delay.c b/old/xenolinux-2.4.16-sparse/arch/xeno/lib/delay.c deleted file mode 100644 index c9180268f8..0000000000 --- a/old/xenolinux-2.4.16-sparse/arch/xeno/lib/delay.c +++ /dev/null @@ -1,47 +0,0 @@ -/* - * Precise Delay Loops for i386 - * - * Copyright (C) 1993 Linus Torvalds - * Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz> - * - * The __delay function must _NOT_ be inlined as its execution time - * depends wildly on alignment on many x86 processors. The additional - * jump magic is needed to get the timing stable on all the CPU's - * we have to worry about. - */ - -#include <linux/config.h> -#include <linux/sched.h> -#include <linux/delay.h> -#include <asm/processor.h> -#include <asm/delay.h> - -#ifdef CONFIG_SMP -#include <asm/smp.h> -#endif - -void __delay(unsigned long loops) -{ - unsigned long bclock, now; - - rdtscl(bclock); - do - { - rep_nop(); - rdtscl(now); - } while ((now-bclock) < loops); -} - -inline void __const_udelay(unsigned long xloops) -{ - int d0; - __asm__("mull %0" - :"=d" (xloops), "=&a" (d0) - :"1" (xloops),"0" (current_cpu_data.loops_per_jiffy)); - __delay(xloops * HZ); -} - -void __udelay(unsigned long usecs) -{ - __const_udelay(usecs * 0x000010c6); /* 2**32 / 1000000 */ -} |