xref: /illumos-gate/usr/src/uts/sun4/sys/dvma.h (revision 7c478bd9)
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 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _SYS_DVMA_H
28 #define	_SYS_DVMA_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #ifdef	__cplusplus
33 extern "C" {
34 #endif
35 
36 #define	DVMAO_REV	1
37 
38 struct dvma_ops  {
39 #ifdef __STDC__
40 	int dvmaops_rev;		/* rev of this structure */
41 	void (*dvma_kaddr_load)(ddi_dma_handle_t h, caddr_t a,
42 			    uint_t len, uint_t index, ddi_dma_cookie_t *cp);
43 	void (*dvma_unload)(ddi_dma_handle_t h, uint_t objindex,
44 			    uint_t view);
45 	void (*dvma_sync)(ddi_dma_handle_t h, uint_t objindex,
46 			    uint_t view);
47 #else /* __STDC__ */
48 	int dvmaops_rev;
49 	void (*dvma_kaddr_load)();
50 	void (*dvma_unload)();
51 	void (*dvma_sync)();
52 #endif /* __STDC__ */
53 };
54 
55 struct	fast_dvma	{
56 	caddr_t softsp;
57 	uint_t *pagecnt;
58 	unsigned long long  *phys_sync_flag;
59 	int *sync_flag;
60 	struct dvma_ops *ops;
61 	caddr_t *kvbase;
62 };
63 
64 #ifdef	__cplusplus
65 }
66 #endif
67 
68 #endif	/* _SYS_DVMA_H */
69