Initial import of mvmeppc.

1 files changed, 96 insertions, 0 deletions

diff --git a/sys/arch/mvmeppc/include/pmap.h b/sys/arch/mvmeppc/include/pmap.h
new file mode 100644
index 00000000000..9491d97aadd
--- /dev/null
+++ b/sys/arch/mvmeppc/include/pmap.h
@@ -0,0 +1,96 @@
+/*	$OpenBSD: pmap.h,v 1.1 2001/06/26 21:57:47 smurph Exp $	*/
+/*	$NetBSD: pmap.h,v 1.1 1996/09/30 16:34:29 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.
+ */
+
+#ifndef	_MACHINE_PMAP_H_
+#define	_MACHINE_PMAP_H_
+
+#include <machine/pte.h>
+
+/*
+ * Segment registers
+ */
+#ifndef	_LOCORE
+typedef u_int sr_t;
+#endif	/* _LOCORE */
+#define	SR_TYPE		0x80000000
+#define	SR_SUKEY	0x40000000
+#define	SR_PRKEY	0x20000000
+#define	SR_VSID		0x00ffffff
+
+#ifndef _LOCORE
+/* V->P mapping data */
+typedef int pmapv_t;
+#define VP_SR_SIZE	32
+#define VP_SR_MASK	VP_SR_SIZE-1
+#define VP_SR_POS 	27
+#define VP_IDX1_SIZE	1024
+#define VP_IDX1_MASK	VP_IDX1_SIZE-1
+#define VP_IDX1_POS 	17
+#define VP_IDX2_SIZE	32
+#define VP_IDX2_MASK	VP_IDX2_SIZE-1
+#define VP_IDX2_POS 	12
+
+/*
+ * Pmap stuff
+ */
+struct pmap {
+	sr_t pm_sr[16];		/* segments used in this pmap */
+	int pm_refs;		/* ref count */
+	pmapv_t *vps[VP_SR_SIZE];	/* virtual to physical table */
+	struct pmap_statistics	pm_stats;	/* pmap statistics */
+};
+
+typedef	struct pmap *pmap_t;
+
+#ifdef	_KERNEL
+extern struct pmap kernel_pmap_;
+#define	pmap_kernel()	(&kernel_pmap_)
+
+#define pmap_clear_modify(pa)		(ptemodify((pa), PTE_CHG, 0))
+#define pmap_clear_reference(pa)	(ptemodify((pa), PTE_REF, 0))
+#define pmap_is_modified(pa)		(ptebits((pa), PTE_CHG))
+#define pmap_is_referenced(pa)		(ptebits((pa), PTE_REF))
+#define pmap_change_wiring(pm, va, wired)
+
+#define pmap_unwire(pm, va)
+
+#define pmap_phys_address(x)		(x)
+
+#define pmap_resident_count(pmap)       ((pmap)->pm_stats.resident_count) 
+
+void pmap_bootstrap __P((u_int kernelstart, u_int kernelend));
+
+#endif	/* _KERNEL */
+#endif	/* _LOCORE */
+#endif	/* _MACHINE_PMAP_H_ */