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sys/arm64/include/bus_dma_impl.h
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| /*- | |||||
| * Copyright (c) 2013 The FreeBSD Foundation | |||||
| * All rights reserved. | |||||
| * | |||||
| * This software was developed by Konstantin Belousov <kib@FreeBSD.org> | |||||
| * under sponsorship from the FreeBSD Foundation. | |||||
| * | |||||
| * 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. | |||||
| * | |||||
| * $FreeBSD$ | |||||
| */ | |||||
| #ifndef __ARM64_BUS_DMA_IMPL_H | |||||
| #define __ARM64_BUS_DMA_IMPL_H | |||||
| struct bus_dma_tag_common { | |||||
| struct bus_dma_impl *impl; | |||||
| struct bus_dma_tag_common *parent; | |||||
| bus_size_t alignment; | |||||
| bus_addr_t boundary; | |||||
| bus_addr_t lowaddr; | |||||
| bus_addr_t highaddr; | |||||
| bus_dma_filter_t *filter; | |||||
| void *filterarg; | |||||
| bus_size_t maxsize; | |||||
| u_int nsegments; | |||||
| bus_size_t maxsegsz; | |||||
| int flags; | |||||
| bus_dma_lock_t *lockfunc; | |||||
| void *lockfuncarg; | |||||
| int ref_count; | |||||
| }; | |||||
| struct bus_dma_impl { | |||||
| int (*tag_create)(bus_dma_tag_t parent, | |||||
| bus_size_t alignment, bus_addr_t boundary, bus_addr_t lowaddr, | |||||
| bus_addr_t highaddr, bus_dma_filter_t *filter, | |||||
| void *filterarg, bus_size_t maxsize, int nsegments, | |||||
| bus_size_t maxsegsz, int flags, bus_dma_lock_t *lockfunc, | |||||
| void *lockfuncarg, bus_dma_tag_t *dmat); | |||||
| int (*tag_destroy)(bus_dma_tag_t dmat); | |||||
| int (*map_create)(bus_dma_tag_t dmat, int flags, bus_dmamap_t *mapp); | |||||
| int (*map_destroy)(bus_dma_tag_t dmat, bus_dmamap_t map); | |||||
| int (*mem_alloc)(bus_dma_tag_t dmat, void** vaddr, int flags, | |||||
| bus_dmamap_t *mapp); | |||||
| void (*mem_free)(bus_dma_tag_t dmat, void *vaddr, bus_dmamap_t map); | |||||
| int (*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 (*load_phys)(bus_dma_tag_t dmat, bus_dmamap_t map, | |||||
| vm_paddr_t buf, bus_size_t buflen, int flags, | |||||
| bus_dma_segment_t *segs, int *segp); | |||||
| int (*load_buffer)(bus_dma_tag_t dmat, bus_dmamap_t map, | |||||
| void *buf, bus_size_t buflen, pmap_t pmap, int flags, | |||||
| bus_dma_segment_t *segs, int *segp); | |||||
| void (*map_waitok)(bus_dma_tag_t dmat, bus_dmamap_t map, | |||||
| struct memdesc *mem, bus_dmamap_callback_t *callback, | |||||
| void *callback_arg); | |||||
| bus_dma_segment_t *(*map_complete)(bus_dma_tag_t dmat, bus_dmamap_t map, | |||||
| bus_dma_segment_t *segs, int nsegs, int error); | |||||
| void (*map_unload)(bus_dma_tag_t dmat, bus_dmamap_t map); | |||||
| void (*map_sync)(bus_dma_tag_t dmat, bus_dmamap_t map, | |||||
| bus_dmasync_op_t op); | |||||
| }; | |||||
| void bus_dma_dflt_lock(void *arg, bus_dma_lock_op_t op); | |||||
| int bus_dma_run_filter(struct bus_dma_tag_common *dmat, bus_addr_t paddr); | |||||
| int common_bus_dma_tag_create(struct bus_dma_tag_common *parent, | |||||
| bus_size_t alignment, | |||||
| bus_addr_t boundary, bus_addr_t lowaddr, bus_addr_t highaddr, | |||||
| bus_dma_filter_t *filter, void *filterarg, bus_size_t maxsize, | |||||
| int nsegments, bus_size_t maxsegsz, int flags, bus_dma_lock_t *lockfunc, | |||||
| void *lockfuncarg, size_t sz, void **dmat); | |||||
| extern struct bus_dma_impl bus_dma_bounce_impl; | |||||
| #endif | |||||