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Editing: busdma_impl.h
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * 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 __X86_BUSDMA_IMPL_H #define __X86_BUSDMA_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; int domain; }; 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 (*tag_set_domain)(bus_dma_tag_t); bool (*id_mapped)(bus_dma_tag_t, vm_paddr_t, bus_size_t); 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, struct pmap *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, vm_paddr_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
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