amd_iommu.h revision 7125fcbd464abbefeb0c10e07d1a93245fc59863
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_AMD_IOMMU_H
#define _SYS_AMD_IOMMU_H
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/sunddi.h>
#include <sys/iommulib.h>
#ifdef _KERNEL
#define BITPOS_START(b) ((b) >> 16)
#define BITPOS_END(b) ((b) & 0xFFFF)
#define START_MASK(s) (((s) == 63) ? ~((uint64_t)0) : (1ULL << ((s)+1)) - 1)
#define END_MASK(e) ((1ULL << (e)) - 1)
#define BIT_MASK(s, e) (START_MASK(s) & ~END_MASK(e))
#define AMD_IOMMU_REG_GET(r, b) \
(((r) & (START_MASK(BITPOS_START(b)))) >> BITPOS_END(b))
#define AMD_IOMMU_REG_SET(r, b, v) \
((r) = (((uint64_t)(r) & ~(BIT_MASK(BITPOS_START(b), BITPOS_END(b)))) \
| ((uint64_t)(v) << BITPOS_END(b))))
typedef enum {
AMD_IOMMU_INTR_INVALID = 0,
AMD_IOMMU_INTR_TABLE,
AMD_IOMMU_INTR_ALLOCED,
AMD_IOMMU_INTR_HANDLER,
AMD_IOMMU_INTR_ENABLED
} amd_iommu_intr_state_t;
typedef struct amd_iommu_state {
int aioms_instance; /* instance */
dev_info_t *aioms_devi; /* dip */
struct amd_iommu *aioms_iommu_start; /* start of list of IOMMUs */
struct amd_iommu *aioms_iommu_end; /* end of list of IOMMUs */
int aioms_nunits; /* # of IOMMUs in function */
} amd_iommu_state_t;
int amd_iommu_setup(dev_info_t *dip, amd_iommu_state_t *statep);
int amd_iommu_teardown(dev_info_t *dip, amd_iommu_state_t *statep);
int amd_iommu_lookup_src_bdf(uint16_t bdf, uint16_t *src_bdfp);
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_AMD_IOMMU_H */