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/*-
* Copyright (c) 2016 Microsoft Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _HYPERV_BUSDMA_H_
#define _HYPERV_BUSDMA_H_
#include <sys/param.h>
#include <sys/bus.h>
#include <machine/bus.h>
struct hyperv_dma {
bus_addr_t hv_paddr;
bus_dma_tag_t hv_dtag;
bus_dmamap_t hv_dmap;
};
void hyperv_dma_map_paddr(void *arg, bus_dma_segment_t *segs, int nseg,
int error);
void *hyperv_dmamem_alloc(bus_dma_tag_t parent_dtag, bus_size_t alignment,
bus_addr_t boundary, bus_size_t size, struct hyperv_dma *dma,
int flags);
void hyperv_dmamem_free(struct hyperv_dma *dma, void *ptr);
#endif /* !_HYPERV_BUSDMA_H_ */
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