xref: /illumos-gate/usr/src/uts/i86pc/sys/amd_iommu.h (revision aedf2b3bb56b025fcaf87b49ec6c8aeea07f16d7)
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 (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef	_SYS_AMD_IOMMU_H
27 #define	_SYS_AMD_IOMMU_H
28 
29 #ifdef	__cplusplus
30 extern "C" {
31 #endif
32 
33 #include <sys/sunddi.h>
34 #include <sys/iommulib.h>
35 
36 #ifdef _KERNEL
37 
38 typedef struct amd_iommu_state {
39 	int	aioms_instance;			/* instance */
40 	dev_info_t *aioms_devi;			/* dip */
41 	struct amd_iommu *aioms_iommu_start;	/* start of list of IOMMUs */
42 	struct amd_iommu *aioms_iommu_end;	/* end of list of IOMMUs */
43 	int aioms_nunits;			/* # of IOMMUs in function */
44 } amd_iommu_state_t;
45 
46 #define	AMD_IOMMU_QUIESCE	(0)
47 #define	AMD_IOMMU_TEARDOWN	(1)
48 
49 int amd_iommu_setup(dev_info_t *dip, amd_iommu_state_t *statep);
50 int amd_iommu_teardown(dev_info_t *dip, amd_iommu_state_t *statep, int type);
51 int amd_iommu_lookup_src_bdf(uint16_t bdf, uint16_t *src_bdfp);
52 
53 #endif	/* _KERNEL */
54 
55 #ifdef	__cplusplus
56 }
57 #endif
58 
59 #endif	/* _SYS_AMD_IOMMU_H */
60