1*cb60f91bSSepherosa Ziehau /*- 2*cb60f91bSSepherosa Ziehau * Copyright (c) 2016 Microsoft Corp. 3*cb60f91bSSepherosa Ziehau * All rights reserved. 4*cb60f91bSSepherosa Ziehau * 5*cb60f91bSSepherosa Ziehau * Redistribution and use in source and binary forms, with or without 6*cb60f91bSSepherosa Ziehau * modification, are permitted provided that the following conditions 7*cb60f91bSSepherosa Ziehau * are met: 8*cb60f91bSSepherosa Ziehau * 1. Redistributions of source code must retain the above copyright 9*cb60f91bSSepherosa Ziehau * notice unmodified, this list of conditions, and the following 10*cb60f91bSSepherosa Ziehau * disclaimer. 11*cb60f91bSSepherosa Ziehau * 2. Redistributions in binary form must reproduce the above copyright 12*cb60f91bSSepherosa Ziehau * notice, this list of conditions and the following disclaimer in the 13*cb60f91bSSepherosa Ziehau * documentation and/or other materials provided with the distribution. 14*cb60f91bSSepherosa Ziehau * 15*cb60f91bSSepherosa Ziehau * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16*cb60f91bSSepherosa Ziehau * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17*cb60f91bSSepherosa Ziehau * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18*cb60f91bSSepherosa Ziehau * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19*cb60f91bSSepherosa Ziehau * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20*cb60f91bSSepherosa Ziehau * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21*cb60f91bSSepherosa Ziehau * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22*cb60f91bSSepherosa Ziehau * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23*cb60f91bSSepherosa Ziehau * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24*cb60f91bSSepherosa Ziehau * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25*cb60f91bSSepherosa Ziehau * 26*cb60f91bSSepherosa Ziehau * $FreeBSD$ 27*cb60f91bSSepherosa Ziehau */ 28*cb60f91bSSepherosa Ziehau 29*cb60f91bSSepherosa Ziehau #ifndef _HYPERV_BUSDMA_H_ 30*cb60f91bSSepherosa Ziehau #define _HYPERV_BUSDMA_H_ 31*cb60f91bSSepherosa Ziehau 32*cb60f91bSSepherosa Ziehau #include <sys/param.h> 33*cb60f91bSSepherosa Ziehau #include <sys/bus.h> 34*cb60f91bSSepherosa Ziehau 35*cb60f91bSSepherosa Ziehau struct hyperv_dma { 36*cb60f91bSSepherosa Ziehau bus_addr_t hv_paddr; 37*cb60f91bSSepherosa Ziehau bus_dma_tag_t hv_dtag; 38*cb60f91bSSepherosa Ziehau bus_dmamap_t hv_dmap; 39*cb60f91bSSepherosa Ziehau }; 40*cb60f91bSSepherosa Ziehau 41*cb60f91bSSepherosa Ziehau void hyperv_dma_map_paddr(void *arg, bus_dma_segment_t *segs, int nseg, 42*cb60f91bSSepherosa Ziehau int error); 43*cb60f91bSSepherosa Ziehau void *hyperv_dmamem_alloc(bus_dma_tag_t parent_dtag, bus_size_t alignment, 44*cb60f91bSSepherosa Ziehau bus_addr_t boundary, bus_size_t size, struct hyperv_dma *dma, 45*cb60f91bSSepherosa Ziehau int flags); 46*cb60f91bSSepherosa Ziehau void hyperv_dmamem_free(struct hyperv_dma *dma, void *ptr); 47*cb60f91bSSepherosa Ziehau 48*cb60f91bSSepherosa Ziehau #endif /* !_HYPERV_BUSDMA_H_ */ 49