1*7e118515SSepherosa Ziehau /*- 2*7e118515SSepherosa Ziehau * Copyright (c) 2016 Microsoft Corp. 3*7e118515SSepherosa Ziehau * All rights reserved. 4*7e118515SSepherosa Ziehau * 5*7e118515SSepherosa Ziehau * Redistribution and use in source and binary forms, with or without 6*7e118515SSepherosa Ziehau * modification, are permitted provided that the following conditions 7*7e118515SSepherosa Ziehau * are met: 8*7e118515SSepherosa Ziehau * 1. Redistributions of source code must retain the above copyright 9*7e118515SSepherosa Ziehau * notice unmodified, this list of conditions, and the following 10*7e118515SSepherosa Ziehau * disclaimer. 11*7e118515SSepherosa Ziehau * 2. Redistributions in binary form must reproduce the above copyright 12*7e118515SSepherosa Ziehau * notice, this list of conditions and the following disclaimer in the 13*7e118515SSepherosa Ziehau * documentation and/or other materials provided with the distribution. 14*7e118515SSepherosa Ziehau * 15*7e118515SSepherosa Ziehau * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16*7e118515SSepherosa Ziehau * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17*7e118515SSepherosa Ziehau * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18*7e118515SSepherosa Ziehau * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19*7e118515SSepherosa Ziehau * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20*7e118515SSepherosa Ziehau * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21*7e118515SSepherosa Ziehau * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22*7e118515SSepherosa Ziehau * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23*7e118515SSepherosa Ziehau * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24*7e118515SSepherosa Ziehau * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25*7e118515SSepherosa Ziehau * 26*7e118515SSepherosa Ziehau * $FreeBSD$ 27*7e118515SSepherosa Ziehau */ 28*7e118515SSepherosa Ziehau 29*7e118515SSepherosa Ziehau #ifndef _HYPERV_BUSDMA_H_ 30*7e118515SSepherosa Ziehau #define _HYPERV_BUSDMA_H_ 31*7e118515SSepherosa Ziehau 32*7e118515SSepherosa Ziehau struct hyperv_dma { 33*7e118515SSepherosa Ziehau bus_addr_t hv_paddr; 34*7e118515SSepherosa Ziehau bus_dma_tag_t hv_dtag; 35*7e118515SSepherosa Ziehau bus_dmamap_t hv_dmap; 36*7e118515SSepherosa Ziehau }; 37*7e118515SSepherosa Ziehau 38*7e118515SSepherosa Ziehau void hyperv_dma_map_paddr(void *arg, bus_dma_segment_t *segs, int nseg, 39*7e118515SSepherosa Ziehau int error); 40*7e118515SSepherosa Ziehau void *hyperv_dmamem_alloc(bus_dma_tag_t parent_dtag, bus_size_t alignment, 41*7e118515SSepherosa Ziehau bus_addr_t boundary, bus_size_t size, struct hyperv_dma *dma, 42*7e118515SSepherosa Ziehau int flags); 43*7e118515SSepherosa Ziehau void hyperv_dmamem_free(struct hyperv_dma *dma, void *ptr); 44*7e118515SSepherosa Ziehau 45*7e118515SSepherosa Ziehau #endif /* !_HYPERV_BUSDMA_H_ */ 46