Preliminary bits for SuperH-based ports, based on NetBSD/sh3 codebase with

minor changes.

1 files changed, 107 insertions, 0 deletions

diff --git a/sys/arch/sh/include/vmparam.h b/sys/arch/sh/include/vmparam.h
new file mode 100644
index 00000000000..c9bf886ac4d
--- /dev/null
+++ b/sys/arch/sh/include/vmparam.h
@@ -0,0 +1,107 @@
+/*	$OpenBSD: vmparam.h,v 1.1 2006/10/06 21:02:55 miod Exp $	*/
+/*	$NetBSD: vmparam.h,v 1.17 2006/03/04 01:55:03 uwe Exp $	*/
+
+/*-
+ * Copyright (c) 2002 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by UCHIYAMA Yasushi.
+ *
+ * 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 NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#ifndef _SH_VMPARAM_H_
+#define	_SH_VMPARAM_H_
+#include <sys/queue.h>
+
+/* Virtual address map. */
+#define	VM_MIN_ADDRESS		((vaddr_t)0)
+#define	VM_MAXUSER_ADDRESS	((vaddr_t)0x7ffff000)
+#define	VM_MAX_ADDRESS		((vaddr_t)0x7ffff000)
+#define	VM_MIN_KERNEL_ADDRESS	((vaddr_t)0xc0000000)
+#define	VM_MAX_KERNEL_ADDRESS	((vaddr_t)0xe0000000)
+
+/* top of stack */
+#define	USRSTACK		VM_MAXUSER_ADDRESS
+
+/* Virtual memory resoruce limit. */
+#define	MAXTSIZ			(64 * 1024 * 1024)	/* max text size */
+#ifndef MAXDSIZ
+#define	MAXDSIZ			(512 * 1024 * 1024)	/* max data size */
+#endif
+#ifndef	MAXSSIZ
+#define	MAXSSIZ			(32 * 1024 * 1024)	/* max stack size */
+#endif
+
+/* initial data size limit */
+#ifndef DFLDSIZ
+#define	DFLDSIZ			(128 * 1024 * 1024)
+#endif
+/* initial stack size limit */
+#ifndef	DFLSSIZ
+#define	DFLSSIZ			(2 * 1024 * 1024)
+#endif
+
+#define	STACKGAP_RANDOM		(256 * 1024)
+
+/*
+ * Size of shared memory map
+ */
+#ifndef SHMMAXPGS
+#define	SHMMAXPGS		1024
+#endif
+
+/* Size of user raw I/O map */
+#ifndef USRIOSIZE
+#define	USRIOSIZE		(MAXBSIZE / PAGE_SIZE * 8)
+#endif
+
+#define	VM_PHYS_SIZE		(USRIOSIZE * PAGE_SIZE)
+
+/* pmap-specific data store in the vm_page structure. */
+#define	__HAVE_VM_PAGE_MD
+#define	PVH_REFERENCED		1
+#define	PVH_MODIFIED		2
+
+#ifndef _LOCORE
+struct pv_entry;
+struct vm_page_md {
+	SLIST_HEAD(, pv_entry) pvh_head;
+	int pvh_flags;
+};
+
+#define	VM_MDPAGE_INIT(pg)						\
+do {									\
+	struct vm_page_md *pvh = &(pg)->mdpage;				\
+	SLIST_INIT(&pvh->pvh_head);					\
+	pvh->pvh_flags = 0;						\
+} while (/*CONSTCOND*/0)
+#endif /* _LOCORE */
+#endif /* !_SH_VMPARAM_H_ */