xref: /illumos-gate/usr/src/uts/i86pc/os/dvma.c (revision a4568e19224dbd8e405999c57ff8d4e4fd0d877f)
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 (c) 1990-1998, by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #include <sys/types.h>
28 #include <sys/param.h>
29 #include <sys/systm.h>
30 #include <sys/kmem.h>
31 #include <sys/cpu.h>
32 #include <sys/sunddi.h>
33 #include <sys/ddi_impldefs.h>
34 
35 /*ARGSUSED*/
36 unsigned long
37 dvma_pagesize(dev_info_t *dip)
38 {
39 	return (0);
40 }
41 
42 /*ARGSUSED*/
43 int
44 dvma_reserve(dev_info_t *dip,  ddi_dma_lim_t *limp, u_int pages,
45     ddi_dma_handle_t *handlep)
46 {
47 	return (DDI_DMA_NORESOURCES);
48 }
49 
50 /*ARGSUSED*/
51 void
52 dvma_release(ddi_dma_handle_t h)
53 {
54 }
55 
56 /*ARGSUSED*/
57 void
58 dvma_kaddr_load(ddi_dma_handle_t h, caddr_t a, u_int len, u_int index,
59 	ddi_dma_cookie_t *cp)
60 {
61 }
62 
63 /*ARGSUSED*/
64 void
65 dvma_unload(ddi_dma_handle_t h, u_int objindex, u_int type)
66 {
67 }
68 
69 /*ARGSUSED*/
70 void
71 dvma_sync(ddi_dma_handle_t h, u_int objindex, u_int type)
72 {
73 }
74