FreeBSD/Linux Kernel Cross Reference
sys/sparc64/include/bus_dma.h

     /*-
      * 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.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by the NetBSD
     *      Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * 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 1.28 2001/07/19 15:32:19 thorpej Exp
     *      and
     *      from: FreeBSD: src/sys/alpha/include/bus.h,v 1.9 2001/01/09
     *
     * $FreeBSD: releng/8.2/sys/sparc64/include/bus_dma.h 143598 2005-03-14 16:46:28Z scottl $
     */
    
    #ifndef _SPARC64_BUS_DMA_H
    #define _SPARC64_BUS_DMA_H
    
    #include <sys/bus_dma.h>
    
    /* 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)(bus_dma_tag_t, bus_dmamap_t, void *,
                bus_size_t, bus_dmamap_callback_t *, void *, int);
            int     (*dm_dmamap_load_mbuf)(bus_dma_tag_t, bus_dmamap_t,
                struct mbuf *, bus_dmamap_callback2_t *, void *, int);
            int     (*dm_dmamap_load_mbuf_sg)(bus_dma_tag_t, bus_dmamap_t,
                struct mbuf *, bus_dma_segment_t *segs, int *nsegs, int);
            int     (*dm_dmamap_load_uio)(bus_dma_tag_t, bus_dmamap_t, struct uio *,
                bus_dmamap_callback2_t *, void *, int);
            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_size_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;
   };
   
   #define bus_dmamap_create(t, f, p)                                      \
           ((t)->dt_mt->dm_dmamap_create((t), (f), (p)))
   #define bus_dmamap_destroy(t, p)                                        \
           ((t)->dt_mt->dm_dmamap_destroy((t), (p)))
   #define bus_dmamap_load(t, m, p, s, cb, cba, f)                         \
           ((t)->dt_mt->dm_dmamap_load((t), (m), (p), (s), (cb), (cba), (f)))
   #define bus_dmamap_load_mbuf(t, m, mb, cb, cba, f)                      \
           ((t)->dt_mt->dm_dmamap_load_mbuf((t), (m), (mb), (cb), (cba), (f)))
   #define bus_dmamap_load_mbuf_sg(t, m, mb, segs, nsegs, f)               \
           ((t)->dt_mt->dm_dmamap_load_mbuf_sg((t), (m), (mb), (segs), (nsegs), (f)))
   #define bus_dmamap_load_uio(t, m, ui, cb, cba, f)                       \
           ((t)->dt_mt->dm_dmamap_load_uio((t), (m), (ui), (cb), (cba), (f)))
   #define bus_dmamap_unload(t, p)                                         \
           ((t)->dt_mt->dm_dmamap_unload((t), (p)))
   #define bus_dmamap_sync(t, m, op)                                       \
           ((t)->dt_mt->dm_dmamap_sync((t), (m), (op)))
   #define bus_dmamem_alloc(t, v, f, m)                                    \
           ((t)->dt_mt->dm_dmamem_alloc((t), (v), (f), (m)))
   #define bus_dmamem_free(t, v, m)                                        \
           ((t)->dt_mt->dm_dmamem_free((t), (v), (m)))
   
   #endif /* !_SPARC64_BUS_DMA_H_ */

Cache object: 518f19653bfe434c38ff84f70df3ad21