1 files changed, 58 insertions, 0 deletions

diff --git a/sys/alpha/include/runq.h b/sys/alpha/include/runq.h
new file mode 100644
index 000000000000..3fc658afaa22
--- /dev/null
+++ b/sys/alpha/include/runq.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2001 Jake Burkholder <jake@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef	_MACHINE_RUNQ_H_
+#define	_MACHINE_RUNQ_H_
+
+#define	RQB_LEN		(1UL)		/* Number of priority status words. */
+#define	RQB_L2BPW	(6UL)		/* Log2(sizeof(rqb_word_t) * NBBY)). */
+#define	RQB_BPW		(1UL<<RQB_L2BPW)	/* Bits in an rqb_word_t. */
+
+#define	RQB_BIT(pri)	(1UL << ((pri) & (RQB_BPW - 1)))
+#define	RQB_WORD(pri)	((pri) >> RQB_L2BPW)
+
+#define	RQB_FFS(word)	(ffs64(word))
+
+/*
+ * Type of run queue status word.
+ */
+typedef	u_int64_t	rqb_word_t;
+
+static __inline u_long
+ffs64(u_long mask)
+{
+	u_long bit;
+
+	if (mask == 0)
+		return (0);
+	for (bit = 1; (mask & 1UL) == 0; bit++)
+		mask >>= 1UL;
+	return (bit);
+}
+
+#endif