After this has been brought up many times before, rename src/arch/i386 to

src/arch/x86. 

Signed-off-by: Stefan Reinauer <stepan@coreboot.org>
Acked-by: Patrick Georgi <patrick@georgi-clan.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6161 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/arch/x86/include/bitops.h

@@ -0,0 +1,20 @@
+#ifndef I386_BITOPS_H
+#define I386_BITOPS_H
+
+/**
+ * log2 - Find the truncated log base 2 of x
+ */
+
+static inline unsigned long log2(unsigned long x)
+{
+	unsigned long r = 0;
+	__asm__(
+		"bsrl %1, %0\n\t"
+		"jnz 1f\n\t"
+		"movl $-1, %0\n\t"
+		"1:\n\t"
+		: "=r" (r) : "r" (x));
+	return r;
+
+}
+#endif /* I386_BITOPS_H */