1 /* $NetBSD: bus_funcs.h,v 1.1 2011/07/01 17:10:01 dyoung Exp $ */ 2 3 /* 4 * Copyright (c) 1996, 1997, 1998, 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #ifndef _SGIMIPS_BUS_FUNCS_H_ 34 #define _SGIMIPS_BUS_FUNCS_H_ 35 36 /* Initialization for bus_dmamap_sync, which differs from MIPS1 to MIPS3 */ 37 38 void sgimips_bus_dma_init(void); 39 40 #define bus_space_read_stream_1 bus_space_read_1 41 #define bus_space_write_stream_1 bus_space_write_1 42 #define bus_space_read_region_stream_1 bus_space_read_reigion_1 43 #define bus_space_read_multi_stream_1 bus_space_read_multi_1 44 #define bus_space_write_multi_stream_1 bus_space_write_multi_1 45 #define bus_space_write_region_stream_1 bus_space_write_region_1 46 47 /* 48 * Bus read/write barrier methods. 49 * 50 * void bus_space_barrier(bus_space_tag_t tag, 51 * bus_space_handle_t bsh, bus_size_t offset, 52 * bus_size_t len, int flags); 53 * 54 * On the MIPS, we just flush the write buffer. 55 */ 56 #define bus_space_barrier(t, h, o, l, f) \ 57 ((void)((void)(t), (void)(h), (void)(o), (void)(l), (void)(f), \ 58 wbflush())) 59 60 /* Forwards needed by prototypes below. */ 61 struct mbuf; 62 struct uio; 63 64 #define bus_dmamap_create(t, s, n, m, b, f, p) \ 65 (*(t)->_dmamap_create)((t), (s), (n), (m), (b), (f), (p)) 66 #define bus_dmamap_destroy(t, p) \ 67 (*(t)->_dmamap_destroy)((t), (p)) 68 #define bus_dmamap_load(t, m, b, s, p, f) \ 69 (*(t)->_dmamap_load)((t), (m), (b), (s), (p), (f)) 70 #define bus_dmamap_load_mbuf(t, m, b, f) \ 71 (*(t)->_dmamap_load_mbuf)((t), (m), (b), (f)) 72 #define bus_dmamap_load_uio(t, m, u, f) \ 73 (*(t)->_dmamap_load_uio)((t), (m), (u), (f)) 74 #define bus_dmamap_load_raw(t, m, sg, n, s, f) \ 75 (*(t)->_dmamap_load_raw)((t), (m), (sg), (n), (s), (f)) 76 #define bus_dmamap_unload(t, p) \ 77 (*(t)->_dmamap_unload)((t), (p)) 78 #define bus_dmamap_sync(t, p, o, l, ops) \ 79 (*(t)->_dmamap_sync)((t), (p), (o), (l), (ops)) 80 81 #define bus_dmamem_alloc(t, s, a, b, sg, n, r, f) \ 82 (*(t)->_dmamem_alloc)((t), (s), (a), (b), (sg), (n), (r), (f)) 83 #define bus_dmamem_free(t, sg, n) \ 84 (*(t)->_dmamem_free)((t), (sg), (n)) 85 #define bus_dmamem_map(t, sg, n, s, k, f) \ 86 (*(t)->_dmamem_map)((t), (sg), (n), (s), (k), (f)) 87 #define bus_dmamem_unmap(t, k, s) \ 88 (*(t)->_dmamem_unmap)((t), (k), (s)) 89 #define bus_dmamem_mmap(t, sg, n, o, p, f) \ 90 (*(t)->_dmamem_mmap)((t), (sg), (n), (o), (p), (f)) 91 92 #define bus_dmatag_subregion(t, mna, mxa, nt, f) EOPNOTSUPP 93 #define bus_dmatag_destroy(t) 94 95 #ifdef _SGIMIPS_BUS_DMA_PRIVATE 96 97 int _bus_dmamap_create(bus_dma_tag_t, bus_size_t, int, bus_size_t, 98 bus_size_t, int, bus_dmamap_t *); 99 void _bus_dmamap_destroy(bus_dma_tag_t, bus_dmamap_t); 100 int _bus_dmamap_load(bus_dma_tag_t, bus_dmamap_t, void *, 101 bus_size_t, struct proc *, int); 102 int _bus_dmamap_load_mbuf(bus_dma_tag_t, bus_dmamap_t, 103 struct mbuf *, int); 104 int _bus_dmamap_load_uio(bus_dma_tag_t, bus_dmamap_t, 105 struct uio *, int); 106 int _bus_dmamap_load_raw(bus_dma_tag_t, bus_dmamap_t, 107 bus_dma_segment_t *, int, bus_size_t, int); 108 void _bus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t); 109 void _bus_dmamap_sync_mips1(bus_dma_tag_t, bus_dmamap_t, bus_addr_t, 110 bus_size_t, int); 111 void _bus_dmamap_sync_mips3(bus_dma_tag_t, bus_dmamap_t, bus_addr_t, 112 bus_size_t, int); 113 114 int _bus_dmamem_alloc(bus_dma_tag_t tag, bus_size_t size, 115 bus_size_t alignment, bus_size_t boundary, 116 bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags); 117 void _bus_dmamem_free(bus_dma_tag_t tag, bus_dma_segment_t *segs, 118 int nsegs); 119 int _bus_dmamem_map(bus_dma_tag_t tag, bus_dma_segment_t *segs, 120 int nsegs, size_t size, void **kvap, int flags); 121 void _bus_dmamem_unmap(bus_dma_tag_t tag, void *kva, 122 size_t size); 123 paddr_t _bus_dmamem_mmap(bus_dma_tag_t tag, bus_dma_segment_t *segs, 124 int nsegs, off_t off, int prot, int flags); 125 126 int _bus_dmamem_alloc_range(bus_dma_tag_t tag, bus_size_t size, 127 bus_size_t alignment, bus_size_t boundary, 128 bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags, 129 vaddr_t low, vaddr_t high); 130 131 extern struct sgimips_bus_dma_tag sgimips_default_bus_dma_tag; 132 #endif /* _SGIMIPS_BUS_DMA_PRIVATE */ 133 134 #endif /* _SGIMIPS_BUS_FUNCS_H_ */ 135