1 files changed, 119 insertions, 0 deletions
diff --git a/usr/src/uts/intel/asm/bitmap.h b/usr/src/uts/intel/asm/bitmap.h
new file mode 100644
index 0000000000..650fb555e6
--- /dev/null
+++ b/usr/src/uts/intel/asm/bitmap.h
@@ -0,0 +1,119 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _ASM_BITMAP_H
+#define	_ASM_BITMAP_H
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <sys/types.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+#if !defined(__lint) && defined(__GNUC__)
+
+extern __inline__ int
+highbit(ulong_t i)
+{
+	long __value = -1l;
+
+#if defined(__amd64)
+	__asm__(
+		"bsrq	%1,%0"
+		: "+r" (__value)
+		: "r" (i)
+		: "cc");
+#elif defined(__i386)
+	__asm__(
+		"bsrl	%1,%0"
+		: "+r" (__value)
+		: "r" (i)
+		: "cc");
+#else
+#error	"port me"
+#endif
+	return ((int)(__value + 1));
+}
+
+extern __inline__ int
+lowbit(ulong_t i)
+{
+	long __value = -1l;
+
+#if defined(__amd64)
+	__asm__(
+		"bsfq	%1,%0"
+		: "+r" (__value)
+		: "r" (i)
+		: "cc");
+#elif defined(__i386)
+	__asm__(
+		"bsfl	%1,%0"
+		: "+r" (__value)
+		: "r" (i)
+		: "cc");
+#else
+#error	"port me"
+#endif
+	return ((int)(__value + 1));
+}
+
+extern __inline__ uint_t
+atomic_btr32(uint32_t *memory, uint_t bitnum)
+{
+	uint8_t __value;
+
+#if defined(__amd64)
+	__asm__ __volatile__(
+		"lock;"
+		"btrl %2, (%0);"
+		"setc %1"
+		: "+r" (memory), "+r" (__value)
+		: "ir" (bitnum)
+		: "cc");
+#elif defined(__i386)
+	__asm__ __volatile__(
+		"lock;"
+		"btrl %2, (%0);"
+		"setc %1"
+		: "+r" (memory), "=r" (__value)
+		: "ir" (bitnum)
+		: "cc");
+#else
+#error	"port me"
+#endif
+	return ((uint_t)__value);
+}
+
+#endif	/* !__lint && __GNUC__ */
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _ASM_BITMAP_H */