This is the start of the FreeBSD/x86_64 kernel.

1 files changed, 138 insertions, 0 deletions

diff --git a/sys/amd64/include/param.h b/sys/amd64/include/param.h
new file mode 100644
index 0000000..a6ab20c
--- /dev/null
+++ b/sys/amd64/include/param.h
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2002 David E. O'Brien.  All rights reserved.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department and Ralph Campbell.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ *	@(#)param.h	8.1 (Berkeley) 6/10/93
+ * $FreeBSD$
+ */
+
+/*
+ * Machine dependent constants for the AMD x86-64.
+ */
+
+/*
+ * Round p (pointer or byte index) up to a correctly-aligned value
+ * for all data types (int, long, ...).   The result is u_long and
+ * must be cast to any desired pointer type.
+ *
+ * ALIGNED_POINTER is a boolean macro that checks whether an address
+ * is valid to fetch data elements of type t from on this architecture.
+ * This does not reflect the optimal alignment, just the possibility
+ * (within reasonable limits). 
+ *
+ */
+#ifndef _ALIGNBYTES
+#define	_ALIGNBYTES	(sizeof(int) - 1)
+#endif
+#ifndef _ALIGN
+#define	_ALIGN(p)	(((u_long)(p) + _ALIGNBYTES) &~ _ALIGNBYTES)
+#endif
+#ifndef _ALIGNED_POINTER
+#define	_ALIGNED_POINTER(p,t)	((((u_long)(p)) & (sizeof(t)-1)) == 0)
+#endif
+
+#ifndef _MACHINE
+#define	_MACHINE	x86_64
+#endif
+#ifndef _MACHINE_ARCH
+#define	_MACHINE_ARCH	x86_64
+#endif
+
+#ifndef _NO_NAMESPACE_POLLUTION
+
+#ifndef _MACHINE_PARAM_H_
+#define	_MACHINE_PARAM_H_
+
+#ifndef MACHINE
+#define	MACHINE		"x86_64"
+#endif
+#ifndef MACHINE_ARCH
+#define	MACHINE_ARCH	"x86_64"
+#endif
+#define	MID_MACHINE	MID_X86_64
+
+/*
+ * OBJFORMAT_NAMES is a comma-separated list of the object formats
+ * that are supported on the architecture.
+ */
+#define	OBJFORMAT_NAMES		"elf"
+#define	OBJFORMAT_DEFAULT	"elf"
+
+#ifdef SMP
+#define MAXCPU		16
+#else
+#define MAXCPU		1
+#endif /* SMP */
+
+#define	ALIGNBYTES		_ALIGNBYTES
+#define	ALIGN(p)		_ALIGN(p)
+#define	ALIGNED_POINTER(p,t)	_ALIGNED_POINTER((p),(t))
+
+#define PAGE_SHIFT	12		/* LOG2(PAGE_SIZE) */
+#define PAGE_SIZE	(1<<PAGE_SHIFT)	/* bytes/page */
+#define PAGE_MASK	(PAGE_SIZE-1)
+#define NPTEPG		(PAGE_SIZE/(sizeof (pt_entry_t)))
+
+#define	KERNBASE	0x0000000000000000LL	/* start of kernel virtual */
+#define	BTOPKERNBASE	((u_long)KERNBASE >> PGSHIFT)
+
+#define IOPAGES	2		/* pages of i/o permission bitmap */
+
+#ifndef KSTACK_PAGES
+#define	KSTACK_PAGES	2		/* pages of kstack (with pcb) */
+#endif
+#define UAREA_PAGES	1	/* holds struct user WITHOUT PCB (see def.) */
+
+#define KSTACK_GUARD	1		/* compile in the kstack guard page */
+
+/*
+ * Mach derived conversion macros
+ */
+#define	round_page(x)	((((unsigned long)(x)) + PAGE_MASK) & ~(PAGE_MASK))
+#define	trunc_page(x)	((unsigned long)(x) & ~(PAGE_MASK))
+#define trunc_4mpage(x)	((unsigned)(x) & ~PDRMASK)
+#define round_4mpage(x)	((((unsigned)(x)) + PDRMASK) & ~PDRMASK)
+
+#define	atop(x)		((unsigned long)(x) >> PAGE_SHIFT)
+#define	ptoa(x)		((unsigned long)(x) << PAGE_SHIFT)
+
+#define	x86_64_btop(x)	((unsigned long)(x) >> PAGE_SHIFT)
+#define	x86_64_ptob(x)	((unsigned long)(x) << PAGE_SHIFT)
+
+#define	pgtok(x)	((x) * (PAGE_SIZE / 1024)) 
+
+#endif /* !_MACHINE_PARAM_H_ */
+#endif /* !_NO_NAMESPACE_POLLUTION */