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authorDavid Woodhouse <dwmw2@infradead.org>2007-04-26 09:31:28 +0100
committerDavid Woodhouse <dwmw2@infradead.org>2007-04-26 09:31:28 +0100
commitef2e58ea6b9931c3a4816c66593da49bb20e3b24 (patch)
treece7432add3becbe78de4ea06425cd2d9e91f4ada /include/asm-um/delay.h
parent06d63cc51d47f572009138a7f3ac34d95773405d (diff)
parentde46c33745f5e2ad594c72f2cf5f490861b16ce1 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'include/asm-um/delay.h')
-rw-r--r--include/asm-um/delay.h17
1 files changed, 14 insertions, 3 deletions
diff --git a/include/asm-um/delay.h b/include/asm-um/delay.h
index 0985bda6675..c71e32b6741 100644
--- a/include/asm-um/delay.h
+++ b/include/asm-um/delay.h
@@ -1,9 +1,20 @@
#ifndef __UM_DELAY_H
#define __UM_DELAY_H
-#include "asm/arch/delay.h"
-#include "asm/archparam.h"
-
#define MILLION 1000000
+/* Undefined on purpose */
+extern void __bad_udelay(void);
+
+extern void __udelay(unsigned long usecs);
+extern void __delay(unsigned long loops);
+
+#define udelay(n) ((__builtin_constant_p(n) && (n) > 20000) ? \
+ __bad_udelay() : __udelay(n))
+
+/* It appears that ndelay is not used at all for UML, and has never been
+ * implemented. */
+extern void __unimplemented_ndelay(void);
+#define ndelay(n) __unimplemented_ndelay()
+
#endif