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+/* $NetBSD: pte.h,v 1.1 2006/04/07 14:21:18 cherry Exp $ */
+
+/*-
+ * Copyright (c) 2001 Doug Rabson
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE_PTE_H_
+#define _MACHINE_PTE_H_
+
+#define PTE_PRESENT 0x0000000000000001
+#define PTE__RV1_ 0x0000000000000002
+#define PTE_MA_MASK 0x000000000000001C
+#define PTE_MA_WB 0x0000000000000000
+#define PTE_MA_UC 0x0000000000000010
+#define PTE_MA_UCE 0x0000000000000014
+#define PTE_MA_WC 0x0000000000000018
+#define PTE_MA_NATPAGE 0x000000000000001C
+#define PTE_ACCESSED 0x0000000000000020
+#define PTE_DIRTY 0x0000000000000040
+#define PTE_PL_MASK 0x0000000000000180
+#define PTE_PL_KERN 0x0000000000000000
+#define PTE_PL_USER 0x0000000000000180
+#define PTE_AR_MASK 0x0000000000000E00
+
+#define PTE_AR_R 0x0000000000000000
+#define PTE_AR_RX 0x0000000000000200
+#define PTE_AR_RW 0x0000000000000400
+#define PTE_AR_RWX 0x0000000000000600
+#define PTE_AR_R_RW 0x0000000000000800
+#define PTE_AR_RX_RWX 0x0000000000000A00
+#define PTE_AR_RWX_RW 0x0000000000000C00
+#define PTE_AR_X_RX 0x0000000000000E00
+#define PTE_PPN_MASK 0x0003FFFFFFFFF000
+#define PTE__RV2_ 0x000C000000000000
+#define PTE_ED 0x0010000000000000
+#define PTE_IG_MASK 0xFFE0000000000000
+#define PTE_WIRED 0x0020000000000000
+#define PTE_MANAGED 0x0040000000000000
+#define PTE_PROT_MASK 0x0700000000000000
+
+#define ITIR__RV1_ 0x0000000000000003
+#define ITIR_PS_MASK 0x00000000000000FC
+#define ITIR_KEY_MASK 0x00000000FFFFFF00
+#define ITIR__RV2_ 0xFFFFFFFF00000000
+
+#ifndef _LOCORE
+
+typedef uint64_t pt_entry_t;
+
+static __inline pt_entry_t
+pte_atomic_clear(pt_entry_t *ptep, uint64_t val)
+{
+ return (atomic_clear_64(ptep, val));
+}
+
+static __inline pt_entry_t
+pte_atomic_set(pt_entry_t *ptep, uint64_t val)
+{
+ return (atomic_set_64(ptep, val));
+}
+
+/*
+ * A long-format VHPT entry.
+ */
+struct ia64_lpte {
+ pt_entry_t pte;
+ uint64_t itir;
+ uint64_t tag; /* includes ti */
+ uint64_t chain; /* pa of collision chain */
+};
+
+
+/*
+ * Layout of rr[x].
+ */
+struct ia64_rr {
+ uint64_t rr_ve :1; /* bit 0 */
+ uint64_t __rv1__ :1; /* bit 1 */
+ uint64_t rr_ps :6; /* bits 2..7 */
+ uint64_t rr_rid :24; /* bits 8..31 */
+ uint64_t __rv2__ :32; /* bits 32..63 */
+};
+
+#endif /* !LOCORE */
+
+#endif /* !_MACHINE_PTE_H_ */