* [PATCH 34/54] Add arch/nios2/include/asm/getorder.h
@ 2011-03-03 22:58 franck.jullien
0 siblings, 0 replies; only message in thread
From: franck.jullien @ 2011-03-03 22:58 UTC (permalink / raw)
To: barebox
From: Franck JULLIEN <franck.jullien@gmail.com>
Add arch/nios2/include/asm/getorder.h
---
arch/nios2/include/asm/getorder.h | 24 ++++++++++++++++++++++++
1 files changed, 24 insertions(+), 0 deletions(-)
create mode 100644 arch/nios2/include/asm/getorder.h
diff --git a/arch/nios2/include/asm/getorder.h b/arch/nios2/include/asm/getorder.h
new file mode 100644
index 0000000..67e7245
--- /dev/null
+++ b/arch/nios2/include/asm/getorder.h
@@ -0,0 +1,24 @@
+#ifndef __ASM_GENERIC_GETORDER_H
+#define __ASM_GENERIC_GETORDER_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/compiler.h>
+
+/* Pure 2^n version of get_order */
+static inline __attribute_const__ int get_order(unsigned long size)
+{
+ int order;
+
+ size = (size - 1) >> (PAGE_SHIFT - 1);
+ order = -1;
+ do {
+ size >>= 1;
+ order++;
+ } while (size);
+ return order;
+}
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_GENERIC_GETORDER_H */
--
1.7.3.4
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