arch/x86/kernel/platform/i86pc/include/sys/amd_iommu.h

   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 */