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Diffstat (limited to 'sys/arm64/include/bus_dma_impl.h')
| -rw-r--r-- | sys/arm64/include/bus_dma_impl.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/sys/arm64/include/bus_dma_impl.h b/sys/arm64/include/bus_dma_impl.h new file mode 100644 index 0000000..354290e --- /dev/null +++ b/sys/arm64/include/bus_dma_impl.h @@ -0,0 +1,96 @@ +/*- + * 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 _MACHINE_BUS_DMA_IMPL_H_ +#define _MACHINE_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 |
