1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29#include <sys/t_lock.h>
30#include <sys/vmem.h>
31#include <sys/mman.h>
32#include <sys/vm.h>
33#include <sys/cpuvar.h>
34#include <sys/systm.h>
35#include <vm/as.h>
36#include <vm/hat.h>
37#include <vm/page.h>
38#include <vm/seg.h>
39#include <vm/seg_kmem.h>
40#include <sys/kmem.h>
41#include <sys/cmn_err.h>
42#include <sys/debug.h>
43
44/*
45 * ppcopy() and pagezero() have moved to i86/vm/vm_machdep.c
46 */
47
48/*
49 * Architecures with a vac use this routine to quickly make
50 * a vac-aligned mapping.  We don't have a vac, so we don't
51 * care about that - just make this simple.
52 */
53/* ARGSUSED2 */
54caddr_t
55ppmapin(page_t *pp, uint_t vprot, caddr_t avoid)
56{
57	caddr_t va;
58
59	va = vmem_alloc(heap_arena, PAGESIZE, VM_SLEEP);
60	hat_memload(kas.a_hat, va, pp, vprot | HAT_NOSYNC, HAT_LOAD_LOCK);
61	return (va);
62}
63
64void
65ppmapout(caddr_t va)
66{
67	hat_unload(kas.a_hat, va, PAGESIZE, HAT_UNLOAD_UNLOCK);
68	vmem_free(heap_arena, va, PAGESIZE);
69}
70
71
72/*
73 * Map the page pointed to by pp into the kernel virtual address space.
74 * This routine is used by the rootnexus.
75 */
76void
77i86_pp_map(page_t *pp, caddr_t kaddr)
78{
79	hat_devload(kas.a_hat, kaddr, MMU_PAGESIZE, page_pptonum(pp),
80	    HAT_STORECACHING_OK | PROT_READ | PROT_WRITE | HAT_NOSYNC,
81	    HAT_LOAD_LOCK);
82}
83
84/*
85 * Map the page containing the virtual address into the kernel virtual address
86 * space.  This routine is used by the rootnexus.
87 */
88void
89i86_va_map(caddr_t vaddr, struct as *asp, caddr_t kaddr)
90{
91	pfn_t pfnum;
92
93	pfnum = hat_getpfnum(asp->a_hat, vaddr);
94	hat_devload(kas.a_hat, kaddr, MMU_PAGESIZE, pfnum,
95	    HAT_STORECACHING_OK | PROT_READ | PROT_WRITE | HAT_NOSYNC,
96	    HAT_LOAD_LOCK);
97}
98