| bus_dma.9 (133499) | bus_dma.9 (134229) |
|---|---|
| 1.\" Copyright (c) 2002, 2003 Hiten M. Pandya. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions, and the following disclaimer, --- 43 unchanged lines hidden (view full) --- 52.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 53.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 54.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 55.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 56.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 57.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 58.\" POSSIBILITY OF SUCH DAMAGE. 59.\" | 1.\" Copyright (c) 2002, 2003 Hiten M. Pandya. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions, and the following disclaimer, --- 43 unchanged lines hidden (view full) --- 52.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 53.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 54.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 55.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 56.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 57.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 58.\" POSSIBILITY OF SUCH DAMAGE. 59.\" |
| 60.\" $FreeBSD: head/share/man/man9/bus_dma.9 133499 2004-08-11 14:52:33Z jmg $ | 60.\" $FreeBSD: head/share/man/man9/bus_dma.9 134229 2004-08-23 23:17:31Z imp $ |
| 61.\" $NetBSD: bus_dma.9,v 1.25 2002/10/14 13:43:16 wiz Exp $ 62.\" 63.Dd May 28, 2003 64.Dt BUS_DMA 9 65.Os 66.Sh NAME 67.Nm bus_dma , 68.Nm bus_dma_tag_create , --- 29 unchanged lines hidden (view full) --- 98.Ft int 99.Fn bus_dmamap_load_mbuf "bus_dma_tag_t dmat" "bus_dmamap_t map" \ 100"struct mbuf *mbuf" "bus_dmamap_callback2_t *callback" "void *callback_arg" \ 101"int flags" 102.Ft int 103.Fn bus_dmamap_load_uio "bus_dma_tag_t dmat" "bus_dmamap_t map" \ 104"struct uio *uio" "bus_dmamap_callback2_t *callback" "void *callback_arg" \ 105"int flags" | 61.\" $NetBSD: bus_dma.9,v 1.25 2002/10/14 13:43:16 wiz Exp $ 62.\" 63.Dd May 28, 2003 64.Dt BUS_DMA 9 65.Os 66.Sh NAME 67.Nm bus_dma , 68.Nm bus_dma_tag_create , --- 29 unchanged lines hidden (view full) --- 98.Ft int 99.Fn bus_dmamap_load_mbuf "bus_dma_tag_t dmat" "bus_dmamap_t map" \ 100"struct mbuf *mbuf" "bus_dmamap_callback2_t *callback" "void *callback_arg" \ 101"int flags" 102.Ft int 103.Fn bus_dmamap_load_uio "bus_dma_tag_t dmat" "bus_dmamap_t map" \ 104"struct uio *uio" "bus_dmamap_callback2_t *callback" "void *callback_arg" \ 105"int flags" |
| 106.Ft int 107.Fn bus_dmamem_alloc "bus_dma_tag_t dmat" "void **vaddr" \ 108"int flags" "bus_dmamap_t *mapp" | |
| 109.Ft void 110.Fn bus_dmamap_unload "bus_dma_tag_t dmat" "bus_dmamap_t map" 111.Ft void 112.Fn bus_dmamap_sync "bus_dma_tag_t dmat" "bus_dmamap_t map" \ 113"op" | 106.Ft void 107.Fn bus_dmamap_unload "bus_dma_tag_t dmat" "bus_dmamap_t map" 108.Ft void 109.Fn bus_dmamap_sync "bus_dma_tag_t dmat" "bus_dmamap_t map" \ 110"op" |
| 111.Ft int 112.Fn bus_dmamem_alloc "bus_dma_tag_t dmat" "void **vaddr" \ 113"int flags" "bus_dmamap_t *mapp" |
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| 114.Ft void 115.Fn bus_dmamem_free "bus_dma_tag_t dmat" "void *vaddr" \ 116"bus_dmamap_t map" 117.Sh DESCRIPTION 118Direct Memory Access (DMA) is a method of transferring data 119without involving the CPU, thus providing higher performance. 120A DMA transaction can be achieved between device to memory, 121device to device, or memory to memory. --- 666 unchanged lines hidden --- | 114.Ft void 115.Fn bus_dmamem_free "bus_dma_tag_t dmat" "void *vaddr" \ 116"bus_dmamap_t map" 117.Sh DESCRIPTION 118Direct Memory Access (DMA) is a method of transferring data 119without involving the CPU, thus providing higher performance. 120A DMA transaction can be achieved between device to memory, 121device to device, or memory to memory. --- 666 unchanged lines hidden --- |