1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/include/asm/utils.h b/arch/arm/include/asm/utils.h
new file mode 100644
index 0000000..eee60c5
--- /dev/null
+++ b/arch/arm/include/asm/utils.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ * Aneesh V <aneesh@ti.com>
+ */
+#ifndef _UTILS_H_
+#define _UTILS_H_
+
+static inline s32 log_2_n_round_up(u32 n)
+{
+	s32 log2n = -1;
+	u32 temp = n;
+
+	while (temp) {
+		log2n++;
+		temp >>= 1;
+	}
+
+	if (n & (n - 1))
+		return log2n + 1; /* not power of 2 - round up */
+	else
+		return log2n; /* power of 2 */
+}
+
+static inline s32 log_2_n_round_down(u32 n)
+{
+	s32 log2n = -1;
+	u32 temp = n;
+
+	while (temp) {
+		log2n++;
+		temp >>= 1;
+	}
+
+	return log2n;
+}
+
+#endif