Import FreeBSD/arm kernel bits.

It only supports sa1110 (on simics) right now, but xscale support should come
soon.
Some of the initial work has been provided by :
Stephane Potvin <sepotvin at videotron.ca>
Most of this comes from NetBSD.

1 files changed, 60 insertions, 0 deletions

diff --git a/sys/arm/include/pcpu.h b/sys/arm/include/pcpu.h
new file mode 100644
index 000000000000..a71eb790ce56
--- /dev/null
+++ b/sys/arm/include/pcpu.h
@@ -0,0 +1,60 @@
+/*-
+ * 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.
+ *
+ *	from: FreeBSD: src/sys/i386/include/globaldata.h,v 1.27 2001/04/27
+ * $FreeBSD$
+ */
+
+#ifndef	_MACHINE_PCPU_H_
+#define	_MACHINE_PCPU_H_
+
+#ifdef _KERNEL
+
+#include <machine/asmacros.h>
+#include <machine/frame.h>
+
+#define	ALT_STACK_SIZE	128
+
+struct vmspace;
+
+/*
+ * Inside the kernel, the globally reserved register g7 is used to
+ * point at the globaldata structure.
+ */
+#define	PCPU_MD_FIELDS							\
+	struct pcup *pc_prvspace;
+
+struct pcb;
+struct pcpu;
+
+extern struct pcpu *pcpup;
+
+#define	PCPU_GET(member)	(pcpup->pc_ ## member)
+#define	PCPU_PTR(member)	(&pcpup->pc_ ## member)
+#define	PCPU_SET(member,value)	(pcpup->pc_ ## member = (value))
+
+#endif	/* _KERNEL */
+
+#endif	/* !_MACHINE_PCPU_H_ */