intel_vtd.h

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/*
 * Copyright (c) 2020 Intel Corporation
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_DRIVERS_INTEL_VTD_H_
#define ZEPHYR_INCLUDE_DRIVERS_INTEL_VTD_H_
 
#include <drivers/pcie/msi.h>
 
typedef int (*vtd_alloc_entries_f)(const struct device *dev,
                                   uint8_t n_entries);
 
typedef uint32_t (*vtd_remap_msi_f)(const struct device *dev,
                                    msi_vector_t *vector);
 
typedef int (*vtd_remap_f)(const struct device *dev,
                           msi_vector_t *vector);
 
struct vtd_driver_api {
        vtd_alloc_entries_f allocate_entries;
        vtd_remap_msi_f remap_msi;
        vtd_remap_f remap;
};
 
static inline int vtd_allocate_entries(const struct device *dev,
                                       uint8_t n_entries)
{
        const struct vtd_driver_api *api =
                (const struct vtd_driver_api *)dev->api;
 
        return api->allocate_entries(dev, n_entries);
}
 
static inline uint32_t vtd_remap_msi(const struct device *dev,
                                     msi_vector_t *vector)
{
        const struct vtd_driver_api *api =
                (const struct vtd_driver_api *)dev->api;
 
        return api->remap_msi(dev, vector);
}
 
static inline int vtd_remap(const struct device *dev,
                            msi_vector_t *vector)
{
        const struct vtd_driver_api *api =
                (const struct vtd_driver_api *)dev->api;
 
        return api->remap(dev, vector);
}
 
 
#endif /* ZEPHYR_INCLUDE_DRIVERS_INTEL_VTD_H_ */