/* $NetBSD: bus_funcs.h,v 1.3 2020/10/11 00:33:30 thorpej Exp $ */ /*- * Copyright (c) 1997, 1998, 2000, 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) 1996 Carnegie-Mellon University. * All rights reserved. * * Author: Chris G. Demetriou * * Permission to use, copy, modify and distribute this software and * its documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. */ #ifndef _ALPHA_BUS_FUNCS_H_ #define _ALPHA_BUS_FUNCS_H_ #ifdef _KERNEL /* * Utility macros; INTERNAL USE ONLY. */ #define __abs_c(a,b) __CONCAT(a,b) #define __abs_opname(op,size) __abs_c(__abs_c(__abs_c(abs_,op),_),size) #define __abs_rs(sz, tn, t, h, o) \ (__BUS_SPACE_ADDRESS_SANITY((h) + (o), tn, "bus addr"), \ (*(t)->__abs_opname(r,sz))((t)->abs_cookie, h, o)) #define __abs_ws(sz, tn, t, h, o, v) \ do { \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), tn, "bus addr"); \ (*(t)->__abs_opname(w,sz))((t)->abs_cookie, h, o, v); \ } while (0) #define __abs_nonsingle(type, sz, tn, t, h, o, a, c) \ do { \ __BUS_SPACE_ADDRESS_SANITY((a), tn, "buffer"); \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), tn, "bus addr"); \ (*(t)->__abs_opname(type,sz))((t)->abs_cookie, h, o, a, c); \ } while (0) #define __abs_set(type, sz, tn, t, h, o, v, c) \ do { \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), tn, "bus addr"); \ (*(t)->__abs_opname(type,sz))((t)->abs_cookie, h, o, v, c); \ } while (0) #define __abs_copy(sz, tn, t, h1, o1, h2, o2, cnt) \ do { \ __BUS_SPACE_ADDRESS_SANITY((h1) + (o1), tn, "bus addr 1"); \ __BUS_SPACE_ADDRESS_SANITY((h2) + (o2), tn, "bus addr 2"); \ (*(t)->__abs_opname(c,sz))((t)->abs_cookie, h1, o1, h2, o2, cnt); \ } while (0) /* * Mapping and unmapping operations. */ #define bus_space_map(t, a, s, f, hp) \ (*(t)->abs_map)((t)->abs_cookie, (a), (s), (f), (hp), 1) #define alpha_bus_space_map_noacct(t, a, s, f, hp) \ (*(t)->abs_map)((t)->abs_cookie, (a), (s), (f), (hp), 0) #define bus_space_unmap(t, h, s) \ (*(t)->abs_unmap)((t)->abs_cookie, (h), (s), 1) #define alpha_bus_space_unmap_noacct(t, h, s) \ (*(t)->abs_unmap)((t)->abs_cookie, (h), (s), 0) #define bus_space_subregion(t, h, o, s, hp) \ (*(t)->abs_subregion)((t)->abs_cookie, (h), (o), (s), (hp)) #define alpha_bus_space_translate(t, a, s, f, abst) \ (*(t)->abs_translate)((t)->abs_cookie, (a), (s), (f), (abst)) #define alpha_bus_space_get_window(t, w, abst) \ (*(t)->abs_get_window)((t)->abs_cookie, (w), (abst)) #endif /* _KERNEL */ #ifdef _KERNEL /* * Allocation and deallocation operations. */ #define bus_space_alloc(t, rs, re, s, a, b, f, ap, hp) \ (*(t)->abs_alloc)((t)->abs_cookie, (rs), (re), (s), (a), (b), \ (f), (ap), (hp)) #define bus_space_free(t, h, s) \ (*(t)->abs_free)((t)->abs_cookie, (h), (s)) /* * Get kernel virtual address for ranges mapped BUS_SPACE_MAP_LINEAR. */ #define bus_space_vaddr(t, h) \ (*(t)->abs_vaddr)((t)->abs_cookie, (h)) /* * Mmap bus space for a user application. */ #define bus_space_mmap(t, a, o, p, f) \ (*(t)->abs_mmap)((t)->abs_cookie, (a), (o), (p), (f)) /* * Bus barrier operations. */ #define bus_space_barrier(t, h, o, l, f) \ (*(t)->abs_barrier)((t)->abs_cookie, (h), (o), (l), (f)) /* * Bus read (single) operations. */ #define bus_space_read_1(t, h, o) __abs_rs(1,uint8_t,(t),(h),(o)) #define bus_space_read_2(t, h, o) __abs_rs(2,uint16_t,(t),(h),(o)) #define bus_space_read_4(t, h, o) __abs_rs(4,uint32_t,(t),(h),(o)) #define bus_space_read_8(t, h, o) __abs_rs(8,uint64_t,(t),(h),(o)) /* * Bus read multiple operations. */ #define bus_space_read_multi_1(t, h, o, a, c) \ __abs_nonsingle(rm,1,uint8_t,(t),(h),(o),(a),(c)) #define bus_space_read_multi_2(t, h, o, a, c) \ __abs_nonsingle(rm,2,uint16_t,(t),(h),(o),(a),(c)) #define bus_space_read_multi_4(t, h, o, a, c) \ __abs_nonsingle(rm,4,uint32_t,(t),(h),(o),(a),(c)) #define bus_space_read_multi_8(t, h, o, a, c) \ __abs_nonsingle(rm,8,uint64_t,(t),(h),(o),(a),(c)) /* * Bus read region operations. */ #define bus_space_read_region_1(t, h, o, a, c) \ __abs_nonsingle(rr,1,uint8_t,(t),(h),(o),(a),(c)) #define bus_space_read_region_2(t, h, o, a, c) \ __abs_nonsingle(rr,2,uint16_t,(t),(h),(o),(a),(c)) #define bus_space_read_region_4(t, h, o, a, c) \ __abs_nonsingle(rr,4,uint32_t,(t),(h),(o),(a),(c)) #define bus_space_read_region_8(t, h, o, a, c) \ __abs_nonsingle(rr,8,uint64_t,(t),(h),(o),(a),(c)) /* * Bus write (single) operations. */ #define bus_space_write_1(t, h, o, v) __abs_ws(1,uint8_t,(t),(h),(o),(v)) #define bus_space_write_2(t, h, o, v) __abs_ws(2,uint16_t,(t),(h),(o),(v)) #define bus_space_write_4(t, h, o, v) __abs_ws(4,uint32_t,(t),(h),(o),(v)) #define bus_space_write_8(t, h, o, v) __abs_ws(8,uint64_t,(t),(h),(o),(v)) /* * Bus write multiple operations. */ #define bus_space_write_multi_1(t, h, o, a, c) \ __abs_nonsingle(wm,1,uint8_t,(t),(h),(o),(a),(c)) #define bus_space_write_multi_2(t, h, o, a, c) \ __abs_nonsingle(wm,2,uint16_t,(t),(h),(o),(a),(c)) #define bus_space_write_multi_4(t, h, o, a, c) \ __abs_nonsingle(wm,4,uint32_t,(t),(h),(o),(a),(c)) #define bus_space_write_multi_8(t, h, o, a, c) \ __abs_nonsingle(wm,8,uint64_t,(t),(h),(o),(a),(c)) /* * Bus write region operations. */ #define bus_space_write_region_1(t, h, o, a, c) \ __abs_nonsingle(wr,1,uint8_t,(t),(h),(o),(a),(c)) #define bus_space_write_region_2(t, h, o, a, c) \ __abs_nonsingle(wr,2,uint16_t,(t),(h),(o),(a),(c)) #define bus_space_write_region_4(t, h, o, a, c) \ __abs_nonsingle(wr,4,uint32_t,(t),(h),(o),(a),(c)) #define bus_space_write_region_8(t, h, o, a, c) \ __abs_nonsingle(wr,8,uint64_t,(t),(h),(o),(a),(c)) /* * Set multiple operations. */ #define bus_space_set_multi_1(t, h, o, v, c) \ __abs_set(sm,1,uint8_t,(t),(h),(o),(v),(c)) #define bus_space_set_multi_2(t, h, o, v, c) \ __abs_set(sm,2,uint16_t,(t),(h),(o),(v),(c)) #define bus_space_set_multi_4(t, h, o, v, c) \ __abs_set(sm,4,uint32_t,(t),(h),(o),(v),(c)) #define bus_space_set_multi_8(t, h, o, v, c) \ __abs_set(sm,8,uint64_t,(t),(h),(o),(v),(c)) /* * Set region operations. */ #define bus_space_set_region_1(t, h, o, v, c) \ __abs_set(sr,1,uint8_t,(t),(h),(o),(v),(c)) #define bus_space_set_region_2(t, h, o, v, c) \ __abs_set(sr,2,uint16_t,(t),(h),(o),(v),(c)) #define bus_space_set_region_4(t, h, o, v, c) \ __abs_set(sr,4,uint32_t,(t),(h),(o),(v),(c)) #define bus_space_set_region_8(t, h, o, v, c) \ __abs_set(sr,8,uint64_t,(t),(h),(o),(v),(c)) /* * Copy region operations. */ #define bus_space_copy_region_1(t, h1, o1, h2, o2, c) \ __abs_copy(1, uint8_t, (t), (h1), (o1), (h2), (o2), (c)) #define bus_space_copy_region_2(t, h1, o1, h2, o2, c) \ __abs_copy(2, uint16_t, (t), (h1), (o1), (h2), (o2), (c)) #define bus_space_copy_region_4(t, h1, o1, h2, o2, c) \ __abs_copy(4, uint32_t, (t), (h1), (o1), (h2), (o2), (c)) #define bus_space_copy_region_8(t, h1, o1, h2, o2, c) \ __abs_copy(8, uint64_t, (t), (h1), (o1), (h2), (o2), (c)) /* * Bus stream operations--defined in terms of non-stream counterparts */ #define bus_space_read_stream_1 bus_space_read_1 #define bus_space_read_stream_2 bus_space_read_2 #define bus_space_read_stream_4 bus_space_read_4 #define bus_space_read_stream_8 bus_space_read_8 #define bus_space_read_multi_stream_1 bus_space_read_multi_1 #define bus_space_read_multi_stream_2 bus_space_read_multi_2 #define bus_space_read_multi_stream_4 bus_space_read_multi_4 #define bus_space_read_multi_stream_8 bus_space_read_multi_8 #define bus_space_read_region_stream_1 bus_space_read_region_1 #define bus_space_read_region_stream_2 bus_space_read_region_2 #define bus_space_read_region_stream_4 bus_space_read_region_4 #define bus_space_read_region_stream_8 bus_space_read_region_8 #define bus_space_write_stream_1 bus_space_write_1 #define bus_space_write_stream_2 bus_space_write_2 #define bus_space_write_stream_4 bus_space_write_4 #define bus_space_write_stream_8 bus_space_write_8 #define bus_space_write_multi_stream_1 bus_space_write_multi_1 #define bus_space_write_multi_stream_2 bus_space_write_multi_2 #define bus_space_write_multi_stream_4 bus_space_write_multi_4 #define bus_space_write_multi_stream_8 bus_space_write_multi_8 #define bus_space_write_region_stream_1 bus_space_write_region_1 #define bus_space_write_region_stream_2 bus_space_write_region_2 #define bus_space_write_region_stream_4 bus_space_write_region_4 #define bus_space_write_region_stream_8 bus_space_write_region_8 /* * Bus DMA methods. */ /* Forwards needed by prototypes below. */ struct mbuf; struct uio; struct alpha_sgmap; #define bus_dmamap_create(t, s, n, m, b, f, p) \ (*(t)->_dmamap_create)((t), (s), (n), (m), (b), (f), (p)) #define bus_dmamap_destroy(t, p) \ (*(t)->_dmamap_destroy)((t), (p)) #define bus_dmamap_load(t, m, b, s, p, f) \ (*(t)->_dmamap_load)((t), (m), (b), (s), (p), (f)) #define bus_dmamap_load_mbuf(t, m, b, f) \ (*(t)->_dmamap_load_mbuf)((t), (m), (b), (f)) #define bus_dmamap_load_uio(t, m, u, f) \ (*(t)->_dmamap_load_uio)((t), (m), (u), (f)) #define bus_dmamap_load_raw(t, m, sg, n, s, f) \ (*(t)->_dmamap_load_raw)((t), (m), (sg), (n), (s), (f)) #define bus_dmamap_unload(t, p) \ (void)(t), \ (*(p)->_dm_window->_dmamap_unload)((p)->_dm_window, (p)) #define bus_dmamap_sync(t, p, o, l, ops) \ (void)(t), \ (*(p)->_dm_window->_dmamap_sync)((p)->_dm_window, (p), (o), (l), (ops)) #define bus_dmamem_alloc(t, s, a, b, sg, n, r, f) \ (*(t)->_dmamem_alloc)((t), (s), (a), (b), (sg), (n), (r), (f)) #define bus_dmamem_free(t, sg, n) \ (*(t)->_dmamem_free)((t), (sg), (n)) #define bus_dmamem_map(t, sg, n, s, k, f) \ (*(t)->_dmamem_map)((t), (sg), (n), (s), (k), (f)) #define bus_dmamem_unmap(t, k, s) \ (*(t)->_dmamem_unmap)((t), (k), (s)) #define bus_dmamem_mmap(t, sg, n, o, p, f) \ (*(t)->_dmamem_mmap)((t), (sg), (n), (o), (p), (f)) #define bus_dmatag_subregion(t, mna, mxa, nt, f) EOPNOTSUPP #define bus_dmatag_destroy(t) #ifdef _ALPHA_BUS_DMA_PRIVATE int _bus_dmamap_create(bus_dma_tag_t, bus_size_t, int, bus_size_t, bus_size_t, int, bus_dmamap_t *); void _bus_dmamap_destroy(bus_dma_tag_t, bus_dmamap_t); int _bus_dmamap_load_direct(bus_dma_tag_t, bus_dmamap_t, void *, bus_size_t, struct proc *, int); int _bus_dmamap_load_mbuf_direct(bus_dma_tag_t, bus_dmamap_t, struct mbuf *, int); int _bus_dmamap_load_uio_direct(bus_dma_tag_t, bus_dmamap_t, struct uio *, int); int _bus_dmamap_load_raw_direct(bus_dma_tag_t, bus_dmamap_t, bus_dma_segment_t *, int, bus_size_t, int); void _bus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t); void _bus_dmamap_unload_common(bus_dma_tag_t, bus_dmamap_t); void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t, bus_size_t, int); int _bus_dmamem_alloc(bus_dma_tag_t tag, bus_size_t size, bus_size_t alignment, bus_size_t boundary, bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags); int _bus_dmamem_alloc_range(bus_dma_tag_t tag, bus_size_t size, bus_size_t alignment, bus_size_t boundary, bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags, paddr_t low, paddr_t high); void _bus_dmamem_free(bus_dma_tag_t tag, bus_dma_segment_t *segs, int nsegs); int _bus_dmamem_map(bus_dma_tag_t tag, bus_dma_segment_t *segs, int nsegs, size_t size, void **kvap, int flags); void _bus_dmamem_unmap(bus_dma_tag_t tag, void *kva, size_t size); paddr_t _bus_dmamem_mmap(bus_dma_tag_t tag, bus_dma_segment_t *segs, int nsegs, off_t off, int prot, int flags); #define _DMA_COUNT_DECL(type, cnt) \ static struct evcnt dma_stat_##type##_##cnt = \ EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, #type, #cnt); \ EVCNT_ATTACH_STATIC(dma_stat_##type##_##cnt) #define _DMA_COUNT(type, cnt) \ atomic_inc_64(&dma_stat_##type##_##cnt .ev_count) #endif /* _ALPHA_BUS_DMA_PRIVATE */ #endif /* _KERNEL */ #endif /* _ALPHA_BUS_FUNCS_H_ */