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- /* SPDX-License-Identifier: GPL-2.0 */
- /*
- * delay.h: Linux delay routines on the Sparc.
- *
- * Copyright (C) 1994 David S. Miller ([email protected]).
- */
- #ifndef __SPARC_DELAY_H
- #define __SPARC_DELAY_H
- #include <asm/cpudata.h>
- 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");
- }
- /* This is too messy with inline asm on the Sparc. */
- void __udelay(unsigned long usecs, unsigned long lpj);
- void __ndelay(unsigned long nsecs, unsigned long lpj);
- #ifdef CONFIG_SMP
- #define __udelay_val cpu_data(smp_processor_id()).udelay_val
- #else /* SMP */
- #define __udelay_val loops_per_jiffy
- #endif /* SMP */
- #define udelay(__usecs) __udelay(__usecs, __udelay_val)
- #define ndelay(__nsecs) __ndelay(__nsecs, __udelay_val)
- #endif /* defined(__SPARC_DELAY_H) */
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