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-rw-r--r--include/asm-sparc64/delay.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/include/asm-sparc64/delay.h b/include/asm-sparc64/delay.h
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+++ b/include/asm-sparc64/delay.h
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+/* 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) */