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| author | Ingo Molnar <mingo@elte.hu> | 2008-07-28 23:32:00 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-28 23:32:00 +0200 |
| commit | 9e3ee1c39c0cc71222f9980ccbf87fe072897eef (patch) | |
| tree | 99462000e6f0d4f907cb2fc690f19d4d441ba0f3 /arch/sparc/include/asm/delay_32.h | |
| parent | e56b3bc7942982ac2589c942fb345e38bc7a341a (diff) | |
| parent | f934fb19ef34730263e6afc01e8ec27a8a71470f (diff) | |
| download | op-kernel-dev-9e3ee1c39c0cc71222f9980ccbf87fe072897eef.zip op-kernel-dev-9e3ee1c39c0cc71222f9980ccbf87fe072897eef.tar.gz | |
Merge branch 'linus' into cpus4096
Conflicts:
kernel/stop_machine.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/sparc/include/asm/delay_32.h')
| -rw-r--r-- | arch/sparc/include/asm/delay_32.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/delay_32.h b/arch/sparc/include/asm/delay_32.h new file mode 100644 index 0000000..bc9aba2 --- /dev/null +++ b/arch/sparc/include/asm/delay_32.h @@ -0,0 +1,34 @@ +/* + * delay.h: Linux delay routines on the Sparc. + * + * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu). + */ + +#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. */ +extern void __udelay(unsigned long usecs, unsigned long lpj); +extern 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) */ |
