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 #include <sys/t_lock.h>
28 #include <sys/vmem.h>
29 #include <sys/mman.h>
30 #include <sys/vm.h>
31 #include <sys/cpuvar.h>
32 #include <sys/systm.h>
33 #include <vm/as.h>
34 #include <vm/hat.h>
35 #include <vm/page.h>
36 #include <vm/seg.h>
37 #include <vm/seg_kmem.h>
38 #include <sys/kmem.h>
39 #include <sys/cmn_err.h>
40 #include <sys/debug.h>
41
42 /*
43 * ppcopy() and pagezero() have moved to i86/vm/vm_machdep.c
44 */
45
46 /*
47 * Architecures with a vac use this routine to quickly make
48 * a vac-aligned mapping. We don't have a vac, so we don't
49 * care about that - just make this simple.
50 */
51 /* ARGSUSED2 */
52 caddr_t
ppmapin(page_t * pp,uint_t vprot,caddr_t avoid)53 ppmapin(page_t *pp, uint_t vprot, caddr_t avoid)
54 {
55 caddr_t va;
56
57 va = vmem_alloc(heap_arena, PAGESIZE, VM_SLEEP);
58 hat_memload(kas.a_hat, va, pp, vprot | HAT_NOSYNC, HAT_LOAD_LOCK);
59 return (va);
60 }
61
62 void
ppmapout(caddr_t va)63 ppmapout(caddr_t va)
64 {
65 hat_unload(kas.a_hat, va, PAGESIZE, HAT_UNLOAD_UNLOCK);
66 vmem_free(heap_arena, va, PAGESIZE);
67 }
68
69
70 /*
71 * Map the page pointed to by pp into the kernel virtual address space.
72 * This routine is used by the rootnexus.
73 */
74 void
i86_pp_map(page_t * pp,caddr_t kaddr)75 i86_pp_map(page_t *pp, caddr_t kaddr)
76 {
77 hat_devload(kas.a_hat, kaddr, MMU_PAGESIZE, page_pptonum(pp),
78 HAT_STORECACHING_OK | PROT_READ | PROT_WRITE | HAT_NOSYNC,
79 HAT_LOAD_LOCK);
80 }
81
82 /*
83 * Map the page containing the virtual address into the kernel virtual address
84 * space. This routine is used by the rootnexus.
85 */
86 void
i86_va_map(caddr_t vaddr,struct as * asp,caddr_t kaddr)87 i86_va_map(caddr_t vaddr, struct as *asp, caddr_t kaddr)
88 {
89 pfn_t pfnum;
90
91 pfnum = hat_getpfnum(asp->a_hat, vaddr);
92 hat_devload(kas.a_hat, kaddr, MMU_PAGESIZE, pfnum,
93 HAT_STORECACHING_OK | PROT_READ | PROT_WRITE | HAT_NOSYNC,
94 HAT_LOAD_LOCK);
95 }
96