diff options
Diffstat (limited to 'include/asm-sparc64/delay.h')
| -rw-r--r-- | include/asm-sparc64/delay.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/asm-sparc64/delay.h b/include/asm-sparc64/delay.h new file mode 100644 index 00000000000..2901ea0c342 --- /dev/null +++ b/include/asm-sparc64/delay.h @@ -0,0 +1,38 @@ +/* delay.h: Linux delay routines on sparc64. + * + * Copyright (C) 1996, 2004 David S. Miller (davem@davemloft.net). + * + * Based heavily upon x86 variant which is: + * Copyright (C) 1993 Linus Torvalds + * + * Delay routines calling functions in arch/sparc64/lib/delay.c + */ + +#ifndef __SPARC64_DELAY_H +#define __SPARC64_DELAY_H + +#include <linux/config.h> +#include <linux/param.h> +#include <asm/cpudata.h> + +#ifndef __ASSEMBLY__ + +extern void __bad_udelay(void); +extern void __bad_ndelay(void); + +extern void __udelay(unsigned long usecs); +extern void __ndelay(unsigned long nsecs); +extern void __const_udelay(unsigned long usecs); +extern void __delay(unsigned long loops); + +#define udelay(n) (__builtin_constant_p(n) ? \ + ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c7ul)) : \ + __udelay(n)) + +#define ndelay(n) (__builtin_constant_p(n) ? \ + ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \ + __ndelay(n)) + +#endif /* !__ASSEMBLY__ */ + +#endif /* defined(__SPARC64_DELAY_H) */ |