/*- * SPDX-License-Identifier: BSD-2-Clause-NetBSD AND BSD-4-Clause * * Copyright (c) 1996, 1997, 1998, 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center. * * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ /* * Copyright (c) 1997-1999 Eduardo E. Horvath. All rights reserved. * Copyright (c) 1996 Charles M. Hannum. All rights reserved. * Copyright (c) 1996 Christopher G. Demetriou. 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Christopher G. Demetriou * for the NetBSD Project. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. * * from: NetBSD: bus.h,v 1.58 2008/04/28 20:23:36 martin Exp * and * from: FreeBSD: src/sys/alpha/include/bus.h,v 1.9 2001/01/09 * * $FreeBSD$ */ #ifndef _SPARC64_BUS_DMA_H #define _SPARC64_BUS_DMA_H #define WANT_INLINE_DMAMAP #include /* DMA support */ /* * Method table for a bus_dma_tag. */ struct bus_dma_methods { int (*dm_dmamap_create)(bus_dma_tag_t, int, bus_dmamap_t *); int (*dm_dmamap_destroy)(bus_dma_tag_t, bus_dmamap_t); int (*dm_dmamap_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 (*dm_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); void (*dm_dmamap_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 *(*dm_dmamap_complete)(bus_dma_tag_t dmat, bus_dmamap_t map, bus_dma_segment_t *segs, int nsegs, int error); void (*dm_dmamap_unload)(bus_dma_tag_t, bus_dmamap_t); void (*dm_dmamap_sync)(bus_dma_tag_t, bus_dmamap_t, bus_dmasync_op_t); int (*dm_dmamem_alloc)(bus_dma_tag_t, void **, int, bus_dmamap_t *); void (*dm_dmamem_free)(bus_dma_tag_t, void *, bus_dmamap_t); }; /* * bus_dma_tag_t * * A machine-dependent opaque type describing the implementation of * DMA for a given bus. */ struct bus_dma_tag { void *dt_cookie; /* cookie used in the guts */ bus_dma_tag_t dt_parent; bus_size_t dt_alignment; bus_addr_t dt_boundary; bus_addr_t dt_lowaddr; bus_addr_t dt_highaddr; bus_dma_filter_t *dt_filter; void *dt_filterarg; bus_size_t dt_maxsize; int dt_nsegments; bus_size_t dt_maxsegsz; int dt_flags; int dt_ref_count; int dt_map_count; bus_dma_lock_t *dt_lockfunc; void * *dt_lockfuncarg; bus_dma_segment_t *dt_segments; struct bus_dma_methods *dt_mt; }; static inline int bus_dmamap_create(bus_dma_tag_t dmat, int flags, bus_dmamap_t *mapp) { return (dmat->dt_mt->dm_dmamap_create(dmat, flags, mapp)); } static inline int bus_dmamap_destroy(bus_dma_tag_t dmat, bus_dmamap_t map) { return (dmat->dt_mt->dm_dmamap_destroy(dmat, map)); } static inline void bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map, bus_dmasync_op_t op) { dmat->dt_mt->dm_dmamap_sync(dmat, map, op); } static inline void bus_dmamap_unload(bus_dma_tag_t dmat, bus_dmamap_t map) { dmat->dt_mt->dm_dmamap_unload(dmat, map); } static inline int bus_dmamem_alloc(bus_dma_tag_t dmat, void** vaddr, int flags, bus_dmamap_t *mapp) { return (dmat->dt_mt->dm_dmamem_alloc(dmat, vaddr, flags, mapp)); } static inline void bus_dmamem_free(bus_dma_tag_t dmat, void *vaddr, bus_dmamap_t map) { dmat->dt_mt->dm_dmamem_free(dmat, vaddr, map); } static inline 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) { return (dmat->dt_mt->dm_dmamap_complete(dmat, map, segs, nsegs, error)); } static inline 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) { return (dmat->dt_mt->dm_dmamap_load_buffer(dmat, map, buf, buflen, pmap, flags, segs, segp)); } static inline 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) { return (bus_dmamap_load_ma_triv(dmat, map, ma, tlen, ma_offs, flags, segs, segp)); } static inline 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) { return (dmat->dt_mt->dm_dmamap_load_phys(dmat, map, paddr, buflen, flags, segs, segp)); } static inline void _bus_dmamap_waitok(bus_dma_tag_t dmat, bus_dmamap_t map, struct memdesc *mem, bus_dmamap_callback_t *callback, void *callback_arg) { return (dmat->dt_mt->dm_dmamap_waitok(dmat, map, mem, callback, callback_arg)); } #endif /* !_SPARC64_BUS_DMA_H_ */