1 files changed, 63 insertions, 0 deletions
diff --git a/sys/ia64/include/globals.h b/sys/ia64/include/globals.h
new file mode 100644
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--- /dev/null
+++ b/sys/ia64/include/globals.h
@@ -0,0 +1,63 @@
+/*-
+ * Copyright (c) 1999 Luoqi Chen <luoqi@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_GLOBALS_H_
+#define	_MACHINE_GLOBALS_H_
+
+#ifdef _KERNEL
+
+register struct globaldata *globalp __asm__("r13");
+
+#if 1
+#define GLOBALP	globalp
+#else
+#define GLOBALP	((struct globaldata *) alpha_pal_rdval())
+#endif
+
+#define	PCPU_GET(name)		(GLOBALP->gd_##name)
+#define PCPU_SET(name,value)	(GLOBALP->gd_##name = (value))
+
+/*
+ * The following set of macros works for UP kernel as well, but for maximum
+ * performance we allow the global variables to be accessed directly. On the
+ * other hand, kernel modules should always use these macros to maintain
+ * portability between UP and SMP kernels.
+ */
+#define	CURPROC		PCPU_GET(curproc)
+#define	curproc		PCPU_GET(curproc)
+#define	idleproc	PCPU_GET(idleproc)
+#define	curpcb		PCPU_GET(curpcb)
+#define	fpcurproc	PCPU_GET(fpcurproc)
+#define	switchtime	PCPU_GET(switchtime)
+#define	switchticks	PCPU_GET(switchticks)
+#define cpuid		PCPU_GET(cpuno)
+#define	prevproc	PCPU_GET(curproc)	/* XXX - until ithreads */
+
+#endif	/* _KERNEL */
+
+#endif	/* !_MACHINE_GLOBALS_H_ */