/*- * 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 * * $FreeBSD$ */ #ifndef _MACHINE_BUS_H_ #define _MACHINE_BUS_H_ #ifdef BUS_SPACE_DEBUG #include #endif #include #include /* * UPA and SBUS spaces are non-cached and big endian * (except for RAM and PROM) * * PCI spaces are non-cached and little endian */ #define UPA_BUS_SPACE 0 #define SBUS_BUS_SPACE 1 #define PCI_CONFIG_BUS_SPACE 2 #define PCI_IO_BUS_SPACE 3 #define PCI_MEMORY_BUS_SPACE 4 #define LAST_BUS_SPACE 5 extern int bus_type_asi[]; extern int bus_stream_asi[]; #define __BUS_SPACE_HAS_STREAM_METHODS 1 /* * Bus address and size types */ typedef u_long bus_space_handle_t; typedef int bus_type_t; typedef u_long bus_addr_t; typedef u_long bus_size_t; #define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF #define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF #define BUS_SPACE_MAXSIZE 0xFFFFFFFFFFFFFFFF #define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF #define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF #define BUS_SPACE_MAXADDR 0xFFFFFFFF #define BUS_SPACE_UNRESTRICTED (~0UL) /* * Access methods for bus resources and address space. */ typedef struct bus_space_tag *bus_space_tag_t; struct bus_space_tag { void *bst_cookie; bus_space_tag_t bst_parent; int bst_type; void (*bst_bus_barrier)(bus_space_tag_t, bus_space_handle_t, bus_size_t, bus_size_t, int); }; /* * Bus space function prototypes. */ static void bus_space_barrier(bus_space_tag_t, bus_space_handle_t, bus_size_t, bus_size_t, int); static int bus_space_subregion(bus_space_tag_t, bus_space_handle_t, bus_size_t, bus_size_t, bus_space_handle_t *); /* * Map a region of device bus space into CPU virtual address space. */ static __inline int bus_space_map(bus_space_tag_t t, bus_addr_t addr, bus_size_t size, int flags, bus_space_handle_t *bshp); static __inline int bus_space_map(bus_space_tag_t t __unused, bus_addr_t addr, bus_size_t size __unused, int flags __unused, bus_space_handle_t *bshp) { *bshp = addr; return (0); } /* * Unmap a region of device bus space. */ static __inline void bus_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t size); static __inline void bus_space_unmap(bus_space_tag_t t __unused, bus_space_handle_t bsh __unused, bus_size_t size __unused) { } /* This macro finds the first "upstream" implementation of method `f' */ #define _BS_CALL(t,f) \ while (t->f == NULL) \ t = t->bst_parent; \ return (*(t)->f) static __inline void bus_space_barrier(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, bus_size_t s, int f) { _BS_CALL(t, bst_bus_barrier)(t, h, o, s, f); } static __inline int bus_space_subregion(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, bus_size_t s, bus_space_handle_t *hp) { *hp = h + o; return (0); } /* flags for bus space map functions */ #define BUS_SPACE_MAP_CACHEABLE 0x0001 #define BUS_SPACE_MAP_LINEAR 0x0002 #define BUS_SPACE_MAP_READONLY 0x0004 #define BUS_SPACE_MAP_PREFETCHABLE 0x0008 /* placeholders for bus functions... */ #define BUS_SPACE_MAP_BUS1 0x0100 #define BUS_SPACE_MAP_BUS2 0x0200 #define BUS_SPACE_MAP_BUS3 0x0400 #define BUS_SPACE_MAP_BUS4 0x0800 /* flags for bus_space_barrier() */ #define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */ #define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */ #ifdef BUS_SPACE_DEBUG #define KTR_BUS KTR_CT2 #define BUS_HANDLE_MIN UPA_MEMSTART #define __BUS_DEBUG_ACCESS(h, o, desc, sz) do { \ CTR4(KTR_BUS, "bus space: %s %d: handle %#lx, offset %#lx", \ (desc), (sz), (h), (o)); \ if ((h) + (o) < BUS_HANDLE_MIN) \ panic("bus space access at %#lx out of range", \ (h) + (o)); \ } while (0) #else #define __BUS_DEBUG_ACCESS(h, o, desc, sz) #endif static __inline uint8_t bus_space_read_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) { __BUS_DEBUG_ACCESS(h, o, "read", 1); return (lduba_nc((caddr_t)(h + o), bus_type_asi[t->bst_type])); } static __inline uint16_t bus_space_read_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) { __BUS_DEBUG_ACCESS(h, o, "read", 2); return (lduha_nc((caddr_t)(h + o), bus_type_asi[t->bst_type])); } static __inline uint32_t bus_space_read_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) { __BUS_DEBUG_ACCESS(h, o, "read", 4); return (lduwa_nc((caddr_t)(h + o), bus_type_asi[t->bst_type])); } static __inline uint64_t bus_space_read_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) { __BUS_DEBUG_ACCESS(h, o, "read", 8); return (ldxa_nc((caddr_t)(h + o), bus_type_asi[t->bst_type])); } static __inline void bus_space_read_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint8_t *a, size_t c) { while (c-- > 0) *a++ = bus_space_read_1(t, h, o); } static __inline void bus_space_read_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint16_t *a, size_t c) { while (c-- > 0) *a++ = bus_space_read_2(t, h, o); } static __inline void bus_space_read_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint32_t *a, size_t c) { while (c-- > 0) *a++ = bus_space_read_4(t, h, o); } static __inline void bus_space_read_multi_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint64_t *a, size_t c) { while (c-- > 0) *a++ = bus_space_read_8(t, h, o); } static __inline void bus_space_write_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint8_t v) { __BUS_DEBUG_ACCESS(h, o, "write", 1); stba_nc((caddr_t)(h + o), bus_type_asi[t->bst_type], v); } static __inline void bus_space_write_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint16_t v) { __BUS_DEBUG_ACCESS(h, o, "write", 2); stha_nc((caddr_t)(h + o), bus_type_asi[t->bst_type], v); } static __inline void bus_space_write_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint32_t v) { __BUS_DEBUG_ACCESS(h, o, "write", 4); stwa_nc((caddr_t)(h + o), bus_type_asi[t->bst_type], v); } static __inline void bus_space_write_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint64_t v) { __BUS_DEBUG_ACCESS(h, o, "write", 8); stxa_nc((caddr_t)(h + o), bus_type_asi[t->bst_type], v); } static __inline void bus_space_write_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint8_t *a, size_t c) { while (c-- > 0) bus_space_write_1(t, h, o, *a++); } static __inline void bus_space_write_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint16_t *a, size_t c) { while (c-- > 0) bus_space_write_2(t, h, o, *a++); } static __inline void bus_space_write_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint32_t *a, size_t c) { while (c-- > 0) bus_space_write_4(t, h, o, *a++); } static __inline void bus_space_write_multi_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint64_t *a, size_t c) { while (c-- > 0) bus_space_write_8(t, h, o, *a++); } static __inline void bus_space_set_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint8_t v, size_t c) { while (c-- > 0) bus_space_write_1(t, h, o, v); } static __inline void bus_space_set_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint16_t v, size_t c) { while (c-- > 0) bus_space_write_2(t, h, o, v); } static __inline void bus_space_set_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint32_t v, size_t c) { while (c-- > 0) bus_space_write_4(t, h, o, v); } static __inline void bus_space_set_multi_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint64_t v, size_t c) { while (c-- > 0) bus_space_write_8(t, h, o, v); } static __inline void bus_space_read_region_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, u_int8_t *a, bus_size_t c) { for (; c; a++, c--, o++) *a = bus_space_read_1(t, h, o); } static __inline void bus_space_read_region_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, u_int16_t *a, bus_size_t c) { for (; c; a++, c--, o+=2) *a = bus_space_read_2(t, h, o); } static __inline void bus_space_read_region_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, u_int32_t *a, bus_size_t c) { for (; c; a++, c--, o+=4) *a = bus_space_read_4(t, h, o); } static __inline void bus_space_read_region_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, u_int64_t *a, bus_size_t c) { for (; c; a++, c--, o+=8) *a = bus_space_read_8(t, h, o); } static __inline void bus_space_write_region_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int8_t *a, bus_size_t c) { for (; c; a++, c--, o++) bus_space_write_1(t, h, o, *a); } static __inline void bus_space_write_region_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int16_t *a, bus_size_t c) { for (; c; a++, c--, o+=2) bus_space_write_2(t, h, o, *a); } static __inline void bus_space_write_region_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int32_t *a, bus_size_t c) { for (; c; a++, c--, o+=4) bus_space_write_4(t, h, o, *a); } static __inline void bus_space_write_region_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int64_t *a, bus_size_t c) { for (; c; a++, c--, o+=8) bus_space_write_8(t, h, o, *a); } static __inline void bus_space_set_region_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int8_t v, bus_size_t c) { for (; c; c--, o++) bus_space_write_1(t, h, o, v); } static __inline void bus_space_set_region_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int16_t v, bus_size_t c) { for (; c; c--, o+=2) bus_space_write_2(t, h, o, v); } static __inline void bus_space_set_region_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int32_t v, bus_size_t c) { for (; c; c--, o+=4) bus_space_write_4(t, h, o, v); } static __inline void bus_space_set_region_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int64_t v, bus_size_t c) { for (; c; c--, o+=8) bus_space_write_8(t, h, o, v); } static __inline void bus_space_copy_region_1(bus_space_tag_t t, bus_space_handle_t h1, bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) { for (; c; c--, o1++, o2++) bus_space_write_1(t, h1, o1, bus_space_read_1(t, h2, o2)); } static __inline void bus_space_copy_region_2(bus_space_tag_t t, bus_space_handle_t h1, bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) { for (; c; c--, o1+=2, o2+=2) bus_space_write_2(t, h1, o1, bus_space_read_2(t, h2, o2)); } static __inline void bus_space_copy_region_4(bus_space_tag_t t, bus_space_handle_t h1, bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) { for (; c; c--, o1+=4, o2+=4) bus_space_write_4(t, h1, o1, bus_space_read_4(t, h2, o2)); } static __inline void bus_space_copy_region_8(bus_space_tag_t t, bus_space_handle_t h1, bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) { for (; c; c--, o1+=8, o2+=8) bus_space_write_8(t, h1, o1, bus_space_read_8(t, h2, o2)); } static __inline uint8_t bus_space_read_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) { __BUS_DEBUG_ACCESS(h, o, "read stream", 1); return (lduba_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type])); } static __inline uint16_t bus_space_read_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) { __BUS_DEBUG_ACCESS(h, o, "read stream", 2); return (lduha_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type])); } static __inline uint32_t bus_space_read_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) { __BUS_DEBUG_ACCESS(h, o, "read stream", 4); return (lduwa_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type])); } static __inline uint64_t bus_space_read_stream_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) { __BUS_DEBUG_ACCESS(h, o, "read stream", 8); return (ldxa_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type])); } static __inline void bus_space_read_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint8_t *a, size_t c) { while (c-- > 0) *a++ = bus_space_read_stream_1(t, h, o); } static __inline void bus_space_read_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint16_t *a, size_t c) { while (c-- > 0) *a++ = bus_space_read_stream_2(t, h, o); } static __inline void bus_space_read_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint32_t *a, size_t c) { while (c-- > 0) *a++ = bus_space_read_stream_4(t, h, o); } static __inline void bus_space_read_multi_stream_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint64_t *a, size_t c) { while (c-- > 0) *a++ = bus_space_read_stream_8(t, h, o); } static __inline void bus_space_write_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint8_t v) { __BUS_DEBUG_ACCESS(h, o, "write stream", 1); stba_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type], v); } static __inline void bus_space_write_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint16_t v) { __BUS_DEBUG_ACCESS(h, o, "write stream", 2); stha_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type], v); } static __inline void bus_space_write_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint32_t v) { __BUS_DEBUG_ACCESS(h, o, "write stream", 4); stwa_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type], v); } static __inline void bus_space_write_stream_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint64_t v) { __BUS_DEBUG_ACCESS(h, o, "write stream", 8); stxa_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type], v); } static __inline void bus_space_write_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const uint8_t *a, size_t c) { while (c-- > 0) bus_space_write_stream_1(t, h, o, *a++); } static __inline void bus_space_write_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const uint16_t *a, size_t c) { while (c-- > 0) bus_space_write_stream_2(t, h, o, *a++); } static __inline void bus_space_write_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const uint32_t *a, size_t c) { while (c-- > 0) bus_space_write_stream_4(t, h, o, *a++); } static __inline void bus_space_write_multi_stream_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const uint64_t *a, size_t c) { while (c-- > 0) bus_space_write_stream_8(t, h, o, *a++); } static __inline void bus_space_set_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint8_t v, size_t c) { while (c-- > 0) bus_space_write_stream_1(t, h, o, v); } static __inline void bus_space_set_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint16_t v, size_t c) { while (c-- > 0) bus_space_write_stream_2(t, h, o, v); } static __inline void bus_space_set_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint32_t v, size_t c) { while (c-- > 0) bus_space_write_stream_4(t, h, o, v); } static __inline void bus_space_set_multi_stream_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint64_t v, size_t c) { while (c-- > 0) bus_space_write_stream_8(t, h, o, v); } static __inline void bus_space_read_region_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, u_int8_t *a, bus_size_t c) { for (; c; a++, c--, o++) *a = bus_space_read_stream_1(t, h, o); } static __inline void bus_space_read_region_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, u_int16_t *a, bus_size_t c) { for (; c; a++, c--, o+=2) *a = bus_space_read_stream_2(t, h, o); } static __inline void bus_space_read_region_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, u_int32_t *a, bus_size_t c) { for (; c; a++, c--, o+=4) *a = bus_space_read_stream_4(t, h, o); } static __inline void bus_space_read_region_stream_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, u_int64_t *a, bus_size_t c) { for (; c; a++, c--, o+=8) *a = bus_space_read_stream_8(t, h, o); } static __inline void bus_space_write_region_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int8_t *a, bus_size_t c) { for (; c; a++, c--, o++) bus_space_write_stream_1(t, h, o, *a); } static __inline void bus_space_write_region_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int16_t *a, bus_size_t c) { for (; c; a++, c--, o+=2) bus_space_write_stream_2(t, h, o, *a); } static __inline void bus_space_write_region_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int32_t *a, bus_size_t c) { for (; c; a++, c--, o+=4) bus_space_write_stream_4(t, h, o, *a); } static __inline void bus_space_write_region_stream_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int64_t *a, bus_size_t c) { for (; c; a++, c--, o+=8) bus_space_write_stream_8(t, h, o, *a); } static __inline void bus_space_set_region_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int8_t v, bus_size_t c) { for (; c; c--, o++) bus_space_write_stream_1(t, h, o, v); } static __inline void bus_space_set_region_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int16_t v, bus_size_t c) { for (; c; c--, o+=2) bus_space_write_stream_2(t, h, o, v); } static __inline void bus_space_set_region_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int32_t v, bus_size_t c) { for (; c; c--, o+=4) bus_space_write_stream_4(t, h, o, v); } static __inline void bus_space_set_region_stream_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, const u_int64_t v, bus_size_t c) { for (; c; c--, o+=8) bus_space_write_stream_8(t, h, o, v); } static __inline void bus_space_copy_region_stream_1(bus_space_tag_t t, bus_space_handle_t h1, bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) { for (; c; c--, o1++, o2++) bus_space_write_stream_1(t, h1, o1, bus_space_read_stream_1(t, h2, o2)); } static __inline void bus_space_copy_region_stream_2(bus_space_tag_t t, bus_space_handle_t h1, bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) { for (; c; c--, o1+=2, o2+=2) bus_space_write_stream_2(t, h1, o1, bus_space_read_stream_2(t, h2, o2)); } static __inline void bus_space_copy_region_stream_4(bus_space_tag_t t, bus_space_handle_t h1, bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) { for (; c; c--, o1+=4, o2+=4) bus_space_write_stream_4(t, h1, o1, bus_space_read_stream_4(t, h2, o2)); } static __inline void bus_space_copy_region_stream_8(bus_space_tag_t t, bus_space_handle_t h1, bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) { for (; c; c--, o1+=8, o2+=8) bus_space_write_stream_8(t, h1, o1, bus_space_read_8(t, h2, o2)); } static __inline int bus_space_peek_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, u_int8_t *a) { __BUS_DEBUG_ACCESS(h, o, "peek", 1); return (fasword8(bus_type_asi[t->bst_type], (caddr_t)(h + o), a)); } static __inline int bus_space_peek_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, u_int16_t *a) { __BUS_DEBUG_ACCESS(h, o, "peek", 2); return (fasword16(bus_type_asi[t->bst_type], (caddr_t)(h + o), a)); } static __inline int bus_space_peek_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, u_int32_t *a) { __BUS_DEBUG_ACCESS(h, o, "peek", 4); return (fasword32(bus_type_asi[t->bst_type], (caddr_t)(h + o), a)); } /* Back-compat functions for old ISA drivers */ extern bus_space_tag_t isa_io_bt; extern bus_space_handle_t isa_io_hdl; extern bus_space_tag_t isa_mem_bt; extern bus_space_handle_t isa_mem_hdl; #define inb(o) bus_space_read_1(isa_io_bt, isa_io_hdl, o) #define inw(o) bus_space_read_2(isa_io_bt, isa_io_hdl, o) #define inl(o) bus_space_read_4(isa_io_bt, isa_io_hdl, o) #define outb(o, v) bus_space_write_1(isa_io_bt, isa_io_hdl, o, v) #define outw(o, v) bus_space_write_2(isa_io_bt, isa_io_hdl, o, v) #define outl(o, v) bus_space_write_4(isa_io_bt, isa_io_hdl, o, v) #define readb(o) bus_space_read_1(isa_mem_bt, isa_mem_hdl, o) #define readw(o) bus_space_read_2(isa_mem_bt, isa_mem_hdl, o) #define readl(o) bus_space_read_4(isa_mem_bt, isa_mem_hdl, o) #define writeb(o, v) bus_space_write_1(isa_mem_bt, isa_mem_hdl, o, v) #define writew(o, v) bus_space_write_2(isa_mem_bt, isa_mem_hdl, o, v) #define writel(o, v) bus_space_write_4(isa_mem_bt, isa_mem_hdl, o, v) #define insb(o, a, c) \ bus_space_read_multi_1(isa_io_bt, isa_io_hdl, o, (void*)a, c) #define insw(o, a, c) \ bus_space_read_multi_2(isa_io_bt, isa_io_hdl, o, (void*)a, c) #define insl(o, a, c) \ bus_space_read_multi_4(isa_io_bt, isa_io_hdl, o, (void*)a, c) #define outsb(o, a, c) \ bus_space_write_multi_1(isa_io_bt, isa_io_hdl, o, (void*)a, c) #define outsw(o, a, c) \ bus_space_write_multi_2(isa_io_bt, isa_io_hdl, o, (void*)a, c) #define outsl(o, a, c) \ bus_space_write_multi_4(isa_io_bt, isa_io_hdl, o, (void*)a, c) #define memcpy_fromio(d, s, c) \ bus_space_read_region_1(isa_mem_bt, isa_mem_hdl, s, d, c) #define memcpy_toio(d, s, c) \ bus_space_write_region_1(isa_mem_bt, isa_mem_hdl, d, s, c) #define memcpy_io(d, s, c) \ bus_space_copy_region_1(isa_mem_bt, isa_mem_hdl, s, isa_mem_hdl, d, c) #define memset_io(d, v, c) \ bus_space_set_region_1(isa_mem_bt, isa_mem_hdl, d, v, c) #define memsetw_io(d, v, c) \ bus_space_set_region_2(isa_mem_bt, isa_mem_hdl, d, v, c) static __inline void memsetw(void *d, int val, size_t size) { u_int16_t *sp = d; while (size--) *sp++ = val; } /* DMA support */ /* * Flags used in various bus DMA methods. */ #define BUS_DMA_WAITOK 0x000 /* safe to sleep (pseudo-flag) */ #define BUS_DMA_NOWAIT 0x001 /* not safe to sleep */ #define BUS_DMA_ALLOCNOW 0x002 /* perform resource allocation now */ #define BUS_DMA_COHERENT 0x004 /* hint: map memory in a coherent way */ #define BUS_DMA_ZERO 0x008 /* allocate zero'ed memory */ #define BUS_DMA_BUS1 0x010 #define BUS_DMA_BUS2 0x020 #define BUS_DMA_BUS3 0x040 #define BUS_DMA_BUS4 0x080 /* The following two flags are non-standard. */ #define BUS_DMA_NOWRITE 0x100 #define BUS_DMA_NOCACHE 0x200 /* Forwards needed by prototypes below. */ struct mbuf; struct uio; typedef int bus_dmasync_op_t; #define BUS_DMASYNC_PREREAD 1 #define BUS_DMASYNC_POSTREAD 2 #define BUS_DMASYNC_PREWRITE 4 #define BUS_DMASYNC_POSTWRITE 8 /* * A function that returns 1 if the address cannot be accessed by * a device and 0 if it can be. */ typedef int bus_dma_filter_t(void *, bus_addr_t); typedef struct bus_dma_tag *bus_dma_tag_t; typedef struct bus_dmamap *bus_dmamap_t; struct bus_dma_segment { bus_addr_t ds_addr; /* DVMA address */ bus_size_t ds_len; /* length of transfer */ }; typedef struct bus_dma_segment bus_dma_segment_t; /* * A function that processes a successfully loaded dma map or an error * from a delayed load map. */ typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int); /* * Like bus_dmamap_callback but includes map size in bytes. This is * defined as a separate interface to maintain compatiiblity for users * of bus_dmamap_callback_t--at some point these interfaces should be merged. */ typedef void bus_dmamap_callback2_t(void *, bus_dma_segment_t *, int, bus_size_t, int); /* * A function that performs driver-specific syncronization on behalf of * busdma. */ typedef enum { BUS_DMA_LOCK = 0x01, BUS_DMA_UNLOCK = 0x02, } bus_dma_lock_op_t; typedef void bus_dma_lock_t(void *, bus_dma_lock_op_t); /* * 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_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; struct bus_dma_methods *dt_mt; }; int bus_dma_tag_create(bus_dma_tag_t, bus_size_t, bus_size_t, bus_addr_t, bus_addr_t, bus_dma_filter_t *, void *, bus_size_t, int, bus_size_t, int, bus_dma_lock_t *, void *, bus_dma_tag_t *); int bus_dma_tag_destroy(bus_dma_tag_t); #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_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))) /* * Generic helper function for manipulating mutexes. */ void busdma_lock_mutex(void *arg, bus_dma_lock_op_t op); #endif /* !_MACHINE_BUS_H_ */