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/*
* xen/include/asm-arm/iommu_fwspec.h
*
* Contains a common structure to hold the per-device firmware data and
* declaration of functions used to maintain that data
*
* Based on Linux's iommu_fwspec support you can find at:
* include/linux/iommu.h
*
* Copyright (C) 2007-2008 Advanced Micro Devices, Inc.
*
* Copyright (C) 2019 EPAM Systems Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms and conditions of the GNU General Public
* License, version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ARCH_ARM_IOMMU_FWSPEC_H__
#define __ARCH_ARM_IOMMU_FWSPEC_H__
/* per-device IOMMU instance data */
struct iommu_fwspec {
/* this device's IOMMU */
struct device *iommu_dev;
/* IOMMU driver private data for this device */
void *iommu_priv;
/* number of associated device IDs */
unsigned int num_ids;
/* IDs which this device may present to the IOMMU */
uint32_t ids[];
};
int iommu_fwspec_init(struct device *dev, struct device *iommu_dev);
void iommu_fwspec_free(struct device *dev);
int iommu_fwspec_add_ids(struct device *dev, const uint32_t *ids,
unsigned int num_ids);
static inline struct iommu_fwspec *dev_iommu_fwspec_get(struct device *dev)
{
return dev->iommu_fwspec;
}
static inline void dev_iommu_fwspec_set(struct device *dev,
struct iommu_fwspec *fwspec)
{
dev->iommu_fwspec = fwspec;
}
#endif /* __ARCH_ARM_IOMMU_FWSPEC_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/
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