Differential D10729 Diff 29942 sys/sys/bus_dma_internal.h

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sys/sys/bus_dma_internal.h

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				/*-
				* Copyright (c) 2017 Jason A. Harmening.
				* 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, 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
				*
				* $FreeBSD$
				mariusUnsubmitted Not Done Inline Actions There probably should be a comment line with $FreeBSD$ here. marius: There probably should be a comment line with $FreeBSD$ here.
				*/

				#ifndef _BUS_DMA_INTERNAL_H_
				#define _BUS_DMA_INTERNAL_H_

				/*
				* The following functions define the interface between the MD and MI
				* busdma layers. These are not intended for consumption by driver
				* software.
				*/

				bus_dma_segment_t *_bus_dmamap_complete(bus_dma_tag_t dmat,
				bus_dmamap_t map, bus_dma_segment_t *segs,
				int nsegs, int error);

				int _bus_dmamap_load_buffer(bus_dma_tag_t dmat, bus_dmamap_t map,
				void buf, bus_size_t buflen, struct pmap pmap,
				int flags, bus_dma_segment_t segs, int segp);

				int _bus_dmamap_load_ma(bus_dma_tag_t dmat, bus_dmamap_t map,
				struct vm_page **ma, bus_size_t tlen, int ma_offs,
				int flags, bus_dma_segment_t segs, int segp);

				int _bus_dmamap_load_phys(bus_dma_tag_t dmat, bus_dmamap_t map,
				vm_paddr_t paddr, bus_size_t buflen,
				int flags, bus_dma_segment_t segs, int segp);

				void _bus_dmamap_waitok(bus_dma_tag_t dmat, bus_dmamap_t map,
				struct memdesc mem, bus_dmamap_callback_t callback,
				void *callback_arg);

				#endif /* !_BUS_DMA_INTERNAL_H_ */