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											2008-07-17 21:55:51 -07:00
										 |  |  | /*
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							|  |  |  |  * delay.h: Linux delay routines on the Sparc. | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu). | 
					
						
							|  |  |  |  */ | 
					
						
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							|  |  |  | #ifndef __SPARC_DELAY_H
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							|  |  |  | #define __SPARC_DELAY_H
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							|  |  |  | #include <asm/cpudata.h>
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							|  |  |  | static inline void __delay(unsigned long loops) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	__asm__ __volatile__("cmp %0, 0\n\t" | 
					
						
							|  |  |  | 			     "1: bne 1b\n\t" | 
					
						
							|  |  |  | 			     "subcc %0, 1, %0\n" : | 
					
						
							|  |  |  | 			     "=&r" (loops) : | 
					
						
							|  |  |  | 			     "0" (loops) : | 
					
						
							|  |  |  | 			     "cc"); | 
					
						
							|  |  |  | } | 
					
						
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							|  |  |  | /* This is too messy with inline asm on the Sparc. */ | 
					
						
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											2014-05-16 23:25:50 +02:00
										 |  |  | void __udelay(unsigned long usecs, unsigned long lpj); | 
					
						
							|  |  |  | void __ndelay(unsigned long nsecs, unsigned long lpj); | 
					
						
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											2008-07-17 21:55:51 -07:00
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							|  |  |  | #ifdef CONFIG_SMP
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							|  |  |  | #define __udelay_val	cpu_data(smp_processor_id()).udelay_val
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							|  |  |  | #else /* SMP */
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							|  |  |  | #define __udelay_val	loops_per_jiffy
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							|  |  |  | #endif /* SMP */
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							|  |  |  | #define udelay(__usecs)	__udelay(__usecs, __udelay_val)
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							|  |  |  | #define ndelay(__nsecs)	__ndelay(__nsecs, __udelay_val)
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							|  |  |  | #endif /* defined(__SPARC_DELAY_H) */
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