Check-in of powerpc kernel support.

NOTE: This will not work until the other pieces are checked in.
This is primarily the NetBSD powerpc port, with modifications
to support ELF. 

1 files changed, 141 insertions, 0 deletions

diff --git a/sys/arch/powerpc/include/param.h b/sys/arch/powerpc/include/param.h
new file mode 100644
index 00000000000..7df158ca14f
--- /dev/null
+++ b/sys/arch/powerpc/include/param.h
@@ -0,0 +1,141 @@
+/*	$NetBSD: param.h,v 1.1 1996/09/30 16:34:28 ws Exp $	*/
+
+/*-
+ * Copyright (C) 1995, 1996 Wolfgang Solfrank.
+ * Copyright (C) 1995, 1996 TooLs GmbH.
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by TooLs GmbH.
+ * 4. The name of TooLs GmbH may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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.
+ */
+
+#ifdef	_KERNEL
+#ifndef	_LOCORE
+#include <machine/cpu.h>
+#endif	/* _LOCORE */
+#endif
+
+/*
+ * Machine dependent constants for PowerPC (32-bit only currently)
+ */
+#define	MACHINE		"powerpc"
+#define	MACHINE_ARCH	"powerpc"
+#define	MID_MACHINE	MID_POWERPC
+
+#define	ALIGNBYTES	(sizeof(double) - 1)
+#define	ALIGN(p)	(((u_int)(p) + ALIGNBYTES) & ~ALIGNBYTES)
+
+#define	PGSHIFT		12
+#if 0
+#define	NBPG		(1 << PGSHIFT)	/* Page size */
+#endif
+#define	NBPG		4096
+#define	PGOFSET		(NBPG - 1)
+
+#define	DEV_BSHIFT	9		/* log2(DEV_BSIZE) */
+#define	DEV_BSIZE	(1 << DEV_BSHIFT)
+#define	BLKDEV_IOSIZE	NBPG
+#define	MAXPHYS		(64 * 1024)	/* max raw I/O transfer size */
+
+#define	CLSIZELOG2	0
+#define	CLSIZE		(1 << CLSIZELOG2)
+
+#define	UPAGES		4
+#define	USPACE		(UPAGES * NBPG)
+
+#define	KERNBASE	0x100000
+
+/*
+ * Constants related to network buffer management.
+ * MCLBYTES must be no larger than CLBYTES (the software page size), and,
+ * on machines that exchange pages of input or output buffers with mbuf
+ * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
+ * of the hardware page size.
+ */
+#define	MSIZE		128		/* size of an mbuf */
+#define	MCLSHIFT	11		/* convert bytes to m_buf clusters */
+#define	MCLBYTES	(1 << MCLSHIFT)	/* size of a m_buf cluster */
+
+#ifndef NMBCLUSTERS
+#ifdef GATEWAY
+#define	NMBCLUSTERS	512		/* map size, max cluster allocation */
+#else
+#define	NMBCLUSTERS	256		/* map size, max cluster allocation */
+#endif
+#endif
+
+/*
+ * Size of kernel malloc arena in CLBYTES-sized logical pages.
+ */
+#ifndef	NKMEMCLUSTERS
+#define	NKMEMCLUSTERS	(128 * 1024 * 1024 / CLBYTES)
+#endif
+
+/*
+ * pages ("clicks") to disk blocks
+ */
+#define	ctod(x)		((x) << (PGSHIFT - DEV_BSHIFT))
+#define	dtoc(x)		((x) >> (PGSHIFT - DEV_BSHIFT))
+/*
+ * bytes to pages
+ */
+#define	ctob(x)		((x) << PGSHIFT)
+#define	btoc(x)		(((x) + PGOFSET) >> PGSHIFT)
+
+/*
+ * bytes to disk blocks
+ */
+#define	dbtob(x)	((x) << DEV_BSHIFT)
+#define	btodb(x)	((x) >> DEV_BSHIFT)
+
+/*
+ * Segment handling stuff
+ */
+#define	SEGMENT_LENGTH	0x10000000
+#define	SEGMENT_MASK	0xf0000000
+
+/*
+ * Fixed segments
+ */
+#define	USER_SR		13
+#define	KERNEL_SR	14
+#define	KERNEL_SEGMENT	(0xfffff0 + KERNEL_SR)
+#define	EMPTY_SEGMENT	0xfffff0
+#define	USER_ADDR	((void *)(USER_SR << ADDR_SR_SHFT))
+
+/*
+ * Some system constants
+ */
+#ifndef	HTABENTS
+#define	HTABENTS	1024	/* Number of hashslots in HTAB */
+#endif
+#ifndef	NPMAPS
+#define	NPMAPS		32768	/* Number of pmaps in system */
+#endif
+
+/*
+ * Temporary kludge till we do (ov)bcopy in assembler
+ */
+#define	ovbcopy	bcopy