bus.h revision 116541
180708Sjake/*- 286228Stmm * Copyright (c) 1996, 1997, 1998, 2001 The NetBSD Foundation, Inc. 380708Sjake * All rights reserved. 480708Sjake * 586228Stmm * This code is derived from software contributed to The NetBSD Foundation 686228Stmm * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 786228Stmm * NASA Ames Research Center. 886228Stmm * 980708Sjake * Redistribution and use in source and binary forms, with or without 1080708Sjake * modification, are permitted provided that the following conditions 1180708Sjake * are met: 1280708Sjake * 1. Redistributions of source code must retain the above copyright 1380708Sjake * notice, this list of conditions and the following disclaimer. 1480708Sjake * 2. Redistributions in binary form must reproduce the above copyright 1580708Sjake * notice, this list of conditions and the following disclaimer in the 1680708Sjake * documentation and/or other materials provided with the distribution. 1786228Stmm * 3. All advertising materials mentioning features or use of this software 1886228Stmm * must display the following acknowledgement: 1986228Stmm * This product includes software developed by the NetBSD 2086228Stmm * Foundation, Inc. and its contributors. 2186228Stmm * 4. Neither the name of The NetBSD Foundation nor the names of its 2286228Stmm * contributors may be used to endorse or promote products derived 2386228Stmm * from this software without specific prior written permission. 2480708Sjake * 2586228Stmm * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 2686228Stmm * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 2786228Stmm * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 2886228Stmm * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 2986228Stmm * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 3086228Stmm * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 3186228Stmm * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 3286228Stmm * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 3386228Stmm * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 3486228Stmm * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 3586228Stmm * POSSIBILITY OF SUCH DAMAGE. 3686228Stmm */ 3786228Stmm/* 3886228Stmm * Copyright (c) 1997-1999 Eduardo E. Horvath. All rights reserved. 3986228Stmm * Copyright (c) 1996 Charles M. Hannum. All rights reserved. 4086228Stmm * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. 4180708Sjake * 4286228Stmm * Redistribution and use in source and binary forms, with or without 4386228Stmm * modification, are permitted provided that the following conditions 4486228Stmm * are met: 4586228Stmm * 1. Redistributions of source code must retain the above copyright 4686228Stmm * notice, this list of conditions and the following disclaimer. 4786228Stmm * 2. Redistributions in binary form must reproduce the above copyright 4886228Stmm * notice, this list of conditions and the following disclaimer in the 4986228Stmm * documentation and/or other materials provided with the distribution. 5086228Stmm * 3. All advertising materials mentioning features or use of this software 5186228Stmm * must display the following acknowledgement: 5286228Stmm * This product includes software developed by Christopher G. Demetriou 5386228Stmm * for the NetBSD Project. 5486228Stmm * 4. The name of the author may not be used to endorse or promote products 5586228Stmm * derived from this software without specific prior written permission 5686228Stmm * 5786228Stmm * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 5886228Stmm * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 5986228Stmm * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 6086228Stmm * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 6186228Stmm * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 6286228Stmm * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 6386228Stmm * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 6486228Stmm * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 6586228Stmm * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 6686228Stmm * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 6786228Stmm * 6886228Stmm * from: NetBSD: bus.h,v 1.28 2001/07/19 15:32:19 thorpej Exp 6986228Stmm * and 7086228Stmm * from: FreeBSD: src/sys/alpha/include/bus.h,v 1.9 2001/01/09 7186228Stmm * 7280708Sjake * $FreeBSD: head/sys/sparc64/include/bus.h 116541 2003-06-18 16:41:36Z tmm $ 7380708Sjake */ 7480708Sjake 7580708Sjake#ifndef _MACHINE_BUS_H_ 7680708Sjake#define _MACHINE_BUS_H_ 7780708Sjake 7890615Stmm#ifdef BUS_SPACE_DEBUG 7990615Stmm#include <sys/ktr.h> 8090615Stmm#endif 8190615Stmm 8286228Stmm#include <machine/cpufunc.h> 8390615Stmm#include <machine/upa.h> 8480708Sjake 8586228Stmm/* 8686228Stmm * UPA and SBUS spaces are non-cached and big endian 8786228Stmm * (except for RAM and PROM) 8886228Stmm * 8986228Stmm * PCI spaces are non-cached and little endian 9086228Stmm */ 9186228Stmm#define UPA_BUS_SPACE 0 9286228Stmm#define SBUS_BUS_SPACE 1 9386228Stmm#define PCI_CONFIG_BUS_SPACE 2 9486228Stmm#define PCI_IO_BUS_SPACE 3 9586228Stmm#define PCI_MEMORY_BUS_SPACE 4 9686228Stmm#define LAST_BUS_SPACE 5 9786228Stmm 9886228Stmmextern int bus_type_asi[]; 9986228Stmmextern int bus_stream_asi[]; 10086228Stmm 10186228Stmm#define __BUS_SPACE_HAS_STREAM_METHODS 1 10286228Stmm 10386228Stmm/* 10486228Stmm * Bus address and size types 10586228Stmm */ 10686228Stmmtypedef u_long bus_space_handle_t; 10786228Stmmtypedef int bus_type_t; 10886228Stmmtypedef u_long bus_addr_t; 10986228Stmmtypedef u_long bus_size_t; 11086228Stmm 11186228Stmm#define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF 11286228Stmm#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF 113111524Smux#define BUS_SPACE_MAXSIZE 0xFFFFFFFFFFFFFFFF 11486228Stmm#define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF 11586228Stmm#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF 11686228Stmm#define BUS_SPACE_MAXADDR 0xFFFFFFFF 11786228Stmm 11886228Stmm#define BUS_SPACE_UNRESTRICTED (~0UL) 11986228Stmm 12086228Stmm/* 12186228Stmm * Access methods for bus resources and address space. 12286228Stmm */ 12386228Stmmtypedef struct bus_space_tag *bus_space_tag_t; 12486228Stmm 12586228Stmmstruct bus_space_tag { 126108815Stmm void *bst_cookie; 127108815Stmm bus_space_tag_t bst_parent; 128108815Stmm int bst_type; 12986228Stmm 130108815Stmm void (*bst_bus_barrier)(bus_space_tag_t, bus_space_handle_t, 13193052Stmm bus_size_t, bus_size_t, int); 13286228Stmm}; 13386228Stmm 13486228Stmm/* 13586228Stmm * Bus space function prototypes. 13686228Stmm */ 13793052Stmmstatic void bus_space_barrier(bus_space_tag_t, bus_space_handle_t, bus_size_t, 13893052Stmm bus_size_t, int); 139108917Sjakestatic int bus_space_subregion(bus_space_tag_t, bus_space_handle_t, 140108917Sjake bus_size_t, bus_size_t, bus_space_handle_t *); 141111347Sobrien/* 142111347Sobrien * Unmap a region of device bus space. 143111347Sobrien */ 144111347Sobrienstatic __inline void bus_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh, 145111347Sobrien bus_size_t size); 14686228Stmm 147111347Sobrienstatic __inline void 148111347Sobrienbus_space_unmap(bus_space_tag_t t __unused, bus_space_handle_t bsh __unused, 149111347Sobrien bus_size_t size __unused) 150111347Sobrien{ 151111347Sobrien} 152111347Sobrien 15386228Stmm/* This macro finds the first "upstream" implementation of method `f' */ 15493052Stmm#define _BS_CALL(t,f) \ 15593052Stmm while (t->f == NULL) \ 156108815Stmm t = t->bst_parent; \ 15786228Stmm return (*(t)->f) 15886228Stmm 15993052Stmmstatic __inline void 16093052Stmmbus_space_barrier(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 16193052Stmm bus_size_t s, int f) 16286228Stmm{ 163108815Stmm _BS_CALL(t, bst_bus_barrier)(t, h, o, s, f); 16486228Stmm} 16586228Stmm 166108917Sjakestatic __inline int 167108917Sjakebus_space_subregion(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 168108917Sjake bus_size_t s, bus_space_handle_t *hp) 169108917Sjake{ 170108917Sjake *hp = h + o; 171108917Sjake return (0); 172108917Sjake} 173108917Sjake 17486228Stmm/* flags for bus space map functions */ 17586228Stmm#define BUS_SPACE_MAP_CACHEABLE 0x0001 17686228Stmm#define BUS_SPACE_MAP_LINEAR 0x0002 17786228Stmm#define BUS_SPACE_MAP_READONLY 0x0004 17886228Stmm#define BUS_SPACE_MAP_PREFETCHABLE 0x0008 17986228Stmm/* placeholders for bus functions... */ 18086228Stmm#define BUS_SPACE_MAP_BUS1 0x0100 18186228Stmm#define BUS_SPACE_MAP_BUS2 0x0200 18286228Stmm#define BUS_SPACE_MAP_BUS3 0x0400 18386228Stmm#define BUS_SPACE_MAP_BUS4 0x0800 18486228Stmm 18586228Stmm/* flags for bus_space_barrier() */ 18686228Stmm#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */ 18786228Stmm#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */ 18886228Stmm 18990615Stmm#ifdef BUS_SPACE_DEBUG 19090615Stmm#define KTR_BUS KTR_CT2 19190615Stmm#define BUS_HANDLE_MIN UPA_MEMSTART 19290615Stmm#define __BUS_DEBUG_ACCESS(h, o, desc, sz) do { \ 19390615Stmm CTR4(KTR_BUS, "bus space: %s %d: handle %#lx, offset %#lx", \ 19490615Stmm (desc), (sz), (h), (o)); \ 19590615Stmm if ((h) + (o) < BUS_HANDLE_MIN) \ 19690615Stmm panic("bus space access at %#lx out of range", \ 19790615Stmm (h) + (o)); \ 19890615Stmm} while (0) 19990615Stmm#else 20090615Stmm#define __BUS_DEBUG_ACCESS(h, o, desc, sz) 20190615Stmm#endif 20290615Stmm 203104304Sjakestatic __inline uint8_t 204104304Sjakebus_space_read_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) 205104304Sjake{ 20686228Stmm 207104304Sjake __BUS_DEBUG_ACCESS(h, o, "read", 1); 208108815Stmm return (lduba_nc((caddr_t)(h + o), bus_type_asi[t->bst_type])); 209104304Sjake} 21086228Stmm 211104304Sjakestatic __inline uint16_t 212104304Sjakebus_space_read_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) 213104304Sjake{ 21486228Stmm 215104304Sjake __BUS_DEBUG_ACCESS(h, o, "read", 2); 216108815Stmm return (lduha_nc((caddr_t)(h + o), bus_type_asi[t->bst_type])); 217104304Sjake} 21886228Stmm 219104304Sjakestatic __inline uint32_t 220104304Sjakebus_space_read_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) 221104304Sjake{ 22286228Stmm 223104304Sjake __BUS_DEBUG_ACCESS(h, o, "read", 4); 224108815Stmm return (lduwa_nc((caddr_t)(h + o), bus_type_asi[t->bst_type])); 225104304Sjake} 22686228Stmm 227104304Sjakestatic __inline uint64_t 228104304Sjakebus_space_read_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) 229104304Sjake{ 23086228Stmm 231104304Sjake __BUS_DEBUG_ACCESS(h, o, "read", 8); 232108815Stmm return (ldxa_nc((caddr_t)(h + o), bus_type_asi[t->bst_type])); 233104304Sjake} 23486228Stmm 235104304Sjakestatic __inline void 236104304Sjakebus_space_read_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 237104304Sjake uint8_t *a, size_t c) 238104304Sjake{ 23986228Stmm 240104304Sjake while (c-- > 0) 241104304Sjake *a++ = bus_space_read_1(t, h, o); 242104304Sjake} 24386228Stmm 244104304Sjakestatic __inline void 245104304Sjakebus_space_read_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 246104304Sjake uint16_t *a, size_t c) 247104304Sjake{ 24886228Stmm 249104304Sjake while (c-- > 0) 250104304Sjake *a++ = bus_space_read_2(t, h, o); 251104304Sjake} 25286228Stmm 253104304Sjakestatic __inline void 254104304Sjakebus_space_read_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 255104304Sjake uint32_t *a, size_t c) 256104304Sjake{ 25786228Stmm 258104304Sjake while (c-- > 0) 259104304Sjake *a++ = bus_space_read_4(t, h, o); 260104304Sjake} 26186228Stmm 262104304Sjakestatic __inline void 263104304Sjakebus_space_read_multi_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 264104304Sjake uint64_t *a, size_t c) 265104304Sjake{ 26686228Stmm 267104304Sjake while (c-- > 0) 268104304Sjake *a++ = bus_space_read_8(t, h, o); 269104304Sjake} 27086228Stmm 271104304Sjakestatic __inline void 272104304Sjakebus_space_write_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 273104304Sjake uint8_t v) 274104304Sjake{ 27586228Stmm 276104304Sjake __BUS_DEBUG_ACCESS(h, o, "write", 1); 277108815Stmm stba_nc((caddr_t)(h + o), bus_type_asi[t->bst_type], v); 278104304Sjake} 27986228Stmm 280104304Sjakestatic __inline void 281104304Sjakebus_space_write_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 282104304Sjake uint16_t v) 283104304Sjake{ 28486228Stmm 285104304Sjake __BUS_DEBUG_ACCESS(h, o, "write", 2); 286108815Stmm stha_nc((caddr_t)(h + o), bus_type_asi[t->bst_type], v); 287104304Sjake} 28886228Stmm 28993052Stmmstatic __inline void 290104304Sjakebus_space_write_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 291104304Sjake uint32_t v) 292104304Sjake{ 293104304Sjake 294104304Sjake __BUS_DEBUG_ACCESS(h, o, "write", 4); 295108815Stmm stwa_nc((caddr_t)(h + o), bus_type_asi[t->bst_type], v); 296104304Sjake} 297104304Sjake 298104304Sjakestatic __inline void 299104304Sjakebus_space_write_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 300104304Sjake uint64_t v) 301104304Sjake{ 302104304Sjake 303104304Sjake __BUS_DEBUG_ACCESS(h, o, "write", 8); 304108815Stmm stxa_nc((caddr_t)(h + o), bus_type_asi[t->bst_type], v); 305104304Sjake} 306104304Sjake 307104304Sjakestatic __inline void 308104304Sjakebus_space_write_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 309104304Sjake uint8_t *a, size_t c) 310104304Sjake{ 311104304Sjake 312104304Sjake while (c-- > 0) 313104304Sjake bus_space_write_1(t, h, o, *a++); 314104304Sjake} 315104304Sjake 316104304Sjakestatic __inline void 317104304Sjakebus_space_write_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 318104304Sjake uint16_t *a, size_t c) 319104304Sjake{ 320104304Sjake 321104304Sjake while (c-- > 0) 322104304Sjake bus_space_write_2(t, h, o, *a++); 323104304Sjake} 324104304Sjake 325104304Sjakestatic __inline void 326104304Sjakebus_space_write_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 327104304Sjake uint32_t *a, size_t c) 328104304Sjake{ 329104304Sjake 330104304Sjake while (c-- > 0) 331104304Sjake bus_space_write_4(t, h, o, *a++); 332104304Sjake} 333104304Sjake 334104304Sjakestatic __inline void 335104304Sjakebus_space_write_multi_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 336104304Sjake uint64_t *a, size_t c) 337104304Sjake{ 338104304Sjake 339104304Sjake while (c-- > 0) 340104304Sjake bus_space_write_8(t, h, o, *a++); 341104304Sjake} 342104304Sjake 343104304Sjakestatic __inline void 344104304Sjakebus_space_set_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 345104304Sjake uint8_t v, size_t c) 346104304Sjake{ 347104304Sjake 348104304Sjake while (c-- > 0) 349104304Sjake bus_space_write_1(t, h, o, v); 350104304Sjake} 351104304Sjake 352104304Sjakestatic __inline void 353104304Sjakebus_space_set_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 354104304Sjake uint16_t v, size_t c) 355104304Sjake{ 356104304Sjake 357104304Sjake while (c-- > 0) 358104304Sjake bus_space_write_2(t, h, o, v); 359104304Sjake} 360104304Sjake 361104304Sjakestatic __inline void 362104304Sjakebus_space_set_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 363104304Sjake uint32_t v, size_t c) 364104304Sjake{ 365104304Sjake 366104304Sjake while (c-- > 0) 367104304Sjake bus_space_write_4(t, h, o, v); 368104304Sjake} 369104304Sjake 370104304Sjakestatic __inline void 371104304Sjakebus_space_set_multi_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 372104304Sjake uint64_t v, size_t c) 373104304Sjake{ 374104304Sjake 375104304Sjake while (c-- > 0) 376104304Sjake bus_space_write_8(t, h, o, v); 377104304Sjake} 378104304Sjake 379104304Sjakestatic __inline void 38093052Stmmbus_space_read_region_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 38193052Stmm u_int8_t *a, bus_size_t c) 38286228Stmm{ 38386228Stmm for (; c; a++, c--, o++) 38486228Stmm *a = bus_space_read_1(t, h, o); 38586228Stmm} 38686228Stmm 38793052Stmmstatic __inline void 38893052Stmmbus_space_read_region_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 38993052Stmm u_int16_t *a, bus_size_t c) 39086228Stmm{ 39186228Stmm for (; c; a++, c--, o+=2) 39286228Stmm *a = bus_space_read_2(t, h, o); 39386228Stmm} 39486228Stmm 39593052Stmmstatic __inline void 39693052Stmmbus_space_read_region_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 39793052Stmm u_int32_t *a, bus_size_t c) 39886228Stmm{ 39986228Stmm for (; c; a++, c--, o+=4) 40086228Stmm *a = bus_space_read_4(t, h, o); 40186228Stmm} 40286228Stmm 40393052Stmmstatic __inline void 40493052Stmmbus_space_read_region_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 40593052Stmm u_int64_t *a, bus_size_t c) 40686228Stmm{ 40786228Stmm for (; c; a++, c--, o+=8) 40886228Stmm *a = bus_space_read_8(t, h, o); 40986228Stmm} 41086228Stmm 41193052Stmmstatic __inline void 41293052Stmmbus_space_write_region_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 41393052Stmm const u_int8_t *a, bus_size_t c) 41486228Stmm{ 41586228Stmm for (; c; a++, c--, o++) 41686228Stmm bus_space_write_1(t, h, o, *a); 41786228Stmm} 41886228Stmm 41993052Stmmstatic __inline void 42093052Stmmbus_space_write_region_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 42193052Stmm const u_int16_t *a, bus_size_t c) 42286228Stmm{ 42386228Stmm for (; c; a++, c--, o+=2) 42486228Stmm bus_space_write_2(t, h, o, *a); 42586228Stmm} 42686228Stmm 42793052Stmmstatic __inline void 42893052Stmmbus_space_write_region_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 42993052Stmm const u_int32_t *a, bus_size_t c) 43086228Stmm{ 43186228Stmm for (; c; a++, c--, o+=4) 43286228Stmm bus_space_write_4(t, h, o, *a); 43386228Stmm} 43486228Stmm 43593052Stmmstatic __inline void 43693052Stmmbus_space_write_region_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 43793052Stmm const u_int64_t *a, bus_size_t c) 43886228Stmm{ 43986228Stmm for (; c; a++, c--, o+=8) 44086228Stmm bus_space_write_8(t, h, o, *a); 44186228Stmm} 44286228Stmm 44393052Stmmstatic __inline void 44493052Stmmbus_space_set_region_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 44593052Stmm const u_int8_t v, bus_size_t c) 44686228Stmm{ 44786228Stmm for (; c; c--, o++) 44886228Stmm bus_space_write_1(t, h, o, v); 44986228Stmm} 45086228Stmm 45193052Stmmstatic __inline void 45293052Stmmbus_space_set_region_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 45393052Stmm const u_int16_t v, bus_size_t c) 45486228Stmm{ 45586228Stmm for (; c; c--, o+=2) 45686228Stmm bus_space_write_2(t, h, o, v); 45786228Stmm} 45886228Stmm 45993052Stmmstatic __inline void 46093052Stmmbus_space_set_region_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 46193052Stmm const u_int32_t v, bus_size_t c) 46286228Stmm{ 46386228Stmm for (; c; c--, o+=4) 46486228Stmm bus_space_write_4(t, h, o, v); 46586228Stmm} 46686228Stmm 46793052Stmmstatic __inline void 46893052Stmmbus_space_set_region_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 46993052Stmm const u_int64_t v, bus_size_t c) 47086228Stmm{ 47186228Stmm for (; c; c--, o+=8) 47286228Stmm bus_space_write_8(t, h, o, v); 47386228Stmm} 47486228Stmm 47593052Stmmstatic __inline void 47693052Stmmbus_space_copy_region_1(bus_space_tag_t t, bus_space_handle_t h1, 47793052Stmm bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) 47886228Stmm{ 47986228Stmm for (; c; c--, o1++, o2++) 48086228Stmm bus_space_write_1(t, h1, o1, bus_space_read_1(t, h2, o2)); 48186228Stmm} 48286228Stmm 48393052Stmmstatic __inline void 48493052Stmmbus_space_copy_region_2(bus_space_tag_t t, bus_space_handle_t h1, 48593052Stmm bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) 48686228Stmm{ 48786228Stmm for (; c; c--, o1+=2, o2+=2) 48886228Stmm bus_space_write_2(t, h1, o1, bus_space_read_2(t, h2, o2)); 48986228Stmm} 49086228Stmm 49193052Stmmstatic __inline void 49293052Stmmbus_space_copy_region_4(bus_space_tag_t t, bus_space_handle_t h1, 49393052Stmm bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) 49486228Stmm{ 49586228Stmm for (; c; c--, o1+=4, o2+=4) 49686228Stmm bus_space_write_4(t, h1, o1, bus_space_read_4(t, h2, o2)); 49786228Stmm} 49886228Stmm 49993052Stmmstatic __inline void 50093052Stmmbus_space_copy_region_8(bus_space_tag_t t, bus_space_handle_t h1, 50193052Stmm bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) 50286228Stmm{ 50386228Stmm for (; c; c--, o1+=8, o2+=8) 50486228Stmm bus_space_write_8(t, h1, o1, bus_space_read_8(t, h2, o2)); 50586228Stmm} 50686228Stmm 507104304Sjakestatic __inline uint8_t 508104304Sjakebus_space_read_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) 509104304Sjake{ 51086228Stmm 511104304Sjake __BUS_DEBUG_ACCESS(h, o, "read stream", 1); 512108815Stmm return (lduba_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type])); 513104304Sjake} 51486228Stmm 515104304Sjakestatic __inline uint16_t 516104304Sjakebus_space_read_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) 517104304Sjake{ 51886228Stmm 519104304Sjake __BUS_DEBUG_ACCESS(h, o, "read stream", 2); 520108815Stmm return (lduha_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type])); 521104304Sjake} 52286228Stmm 523104304Sjakestatic __inline uint32_t 524104304Sjakebus_space_read_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) 525104304Sjake{ 52686228Stmm 527104304Sjake __BUS_DEBUG_ACCESS(h, o, "read stream", 4); 528108815Stmm return (lduwa_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type])); 529104304Sjake} 53086228Stmm 531104304Sjakestatic __inline uint64_t 532104304Sjakebus_space_read_stream_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o) 533104304Sjake{ 53486228Stmm 535104304Sjake __BUS_DEBUG_ACCESS(h, o, "read stream", 8); 536108815Stmm return (ldxa_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type])); 537104304Sjake} 53886228Stmm 539104304Sjakestatic __inline void 540104304Sjakebus_space_read_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h, 541104304Sjake bus_size_t o, uint8_t *a, size_t c) 542104304Sjake{ 54386228Stmm 544104304Sjake while (c-- > 0) 545104304Sjake *a++ = bus_space_read_stream_1(t, h, o); 546104304Sjake} 54786228Stmm 548104304Sjakestatic __inline void 549104304Sjakebus_space_read_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h, 550104304Sjake bus_size_t o, uint16_t *a, size_t c) 551104304Sjake{ 55286228Stmm 553104304Sjake while (c-- > 0) 554104304Sjake *a++ = bus_space_read_stream_2(t, h, o); 555104304Sjake} 55686228Stmm 557104304Sjakestatic __inline void 558104304Sjakebus_space_read_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h, 559104304Sjake bus_size_t o, uint32_t *a, size_t c) 560104304Sjake{ 56186228Stmm 562104304Sjake while (c-- > 0) 563104304Sjake *a++ = bus_space_read_stream_4(t, h, o); 564104304Sjake} 56586228Stmm 566104304Sjakestatic __inline void 567104304Sjakebus_space_read_multi_stream_8(bus_space_tag_t t, bus_space_handle_t h, 568104304Sjake bus_size_t o, uint64_t *a, size_t c) 569104304Sjake{ 57086228Stmm 571104304Sjake while (c-- > 0) 572104304Sjake *a++ = bus_space_read_stream_8(t, h, o); 573104304Sjake} 57486228Stmm 575104304Sjakestatic __inline void 576104304Sjakebus_space_write_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 577104304Sjake uint8_t v) 578104304Sjake{ 57986228Stmm 580104304Sjake __BUS_DEBUG_ACCESS(h, o, "write stream", 1); 581108815Stmm stba_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type], v); 582104304Sjake} 58386228Stmm 584104304Sjakestatic __inline void 585104304Sjakebus_space_write_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 586104304Sjake uint16_t v) 587104304Sjake{ 58886228Stmm 589104304Sjake __BUS_DEBUG_ACCESS(h, o, "write stream", 2); 590108815Stmm stha_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type], v); 591104304Sjake} 59286228Stmm 59393052Stmmstatic __inline void 594104304Sjakebus_space_write_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 595104304Sjake uint32_t v) 596104304Sjake{ 597104304Sjake 598104304Sjake __BUS_DEBUG_ACCESS(h, o, "write stream", 4); 599108815Stmm stwa_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type], v); 600104304Sjake} 601104304Sjake 602104304Sjakestatic __inline void 603104304Sjakebus_space_write_stream_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, 604104304Sjake uint64_t v) 605104304Sjake{ 606104304Sjake 607104304Sjake __BUS_DEBUG_ACCESS(h, o, "write stream", 8); 608108815Stmm stxa_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type], v); 609104304Sjake} 610104304Sjake 611104304Sjakestatic __inline void 612104304Sjakebus_space_write_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h, 613111383Sobrien bus_size_t o, const uint8_t *a, size_t c) 614104304Sjake{ 615104304Sjake 616104304Sjake while (c-- > 0) 617104304Sjake bus_space_write_stream_1(t, h, o, *a++); 618104304Sjake} 619104304Sjake 620104304Sjakestatic __inline void 621104304Sjakebus_space_write_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h, 622111353Sobrien bus_size_t o, const uint16_t *a, size_t c) 623104304Sjake{ 624104304Sjake 625104304Sjake while (c-- > 0) 626104304Sjake bus_space_write_stream_2(t, h, o, *a++); 627104304Sjake} 628104304Sjake 629104304Sjakestatic __inline void 630104304Sjakebus_space_write_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h, 631111383Sobrien bus_size_t o, const uint32_t *a, size_t c) 632104304Sjake{ 633104304Sjake 634104304Sjake while (c-- > 0) 635104304Sjake bus_space_write_stream_4(t, h, o, *a++); 636104304Sjake} 637104304Sjake 638104304Sjakestatic __inline void 639104304Sjakebus_space_write_multi_stream_8(bus_space_tag_t t, bus_space_handle_t h, 640111383Sobrien bus_size_t o, const uint64_t *a, size_t c) 641104304Sjake{ 642104304Sjake 643104304Sjake while (c-- > 0) 644104304Sjake bus_space_write_stream_8(t, h, o, *a++); 645104304Sjake} 646104304Sjake 647104304Sjakestatic __inline void 648104304Sjakebus_space_set_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h, 649104304Sjake bus_size_t o, uint8_t v, size_t c) 650104304Sjake{ 651104304Sjake 652104304Sjake while (c-- > 0) 653104304Sjake bus_space_write_stream_1(t, h, o, v); 654104304Sjake} 655104304Sjake 656104304Sjakestatic __inline void 657104304Sjakebus_space_set_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h, 658104304Sjake bus_size_t o, uint16_t v, size_t c) 659104304Sjake{ 660104304Sjake 661104304Sjake while (c-- > 0) 662104304Sjake bus_space_write_stream_2(t, h, o, v); 663104304Sjake} 664104304Sjake 665104304Sjakestatic __inline void 666104304Sjakebus_space_set_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h, 667104304Sjake bus_size_t o, uint32_t v, size_t c) 668104304Sjake{ 669104304Sjake 670104304Sjake while (c-- > 0) 671104304Sjake bus_space_write_stream_4(t, h, o, v); 672104304Sjake} 673104304Sjake 674104304Sjakestatic __inline void 675104304Sjakebus_space_set_multi_stream_8(bus_space_tag_t t, bus_space_handle_t h, 676104304Sjake bus_size_t o, uint64_t v, size_t c) 677104304Sjake{ 678104304Sjake 679104304Sjake while (c-- > 0) 680104304Sjake bus_space_write_stream_8(t, h, o, v); 681104304Sjake} 682104304Sjake 683104304Sjakestatic __inline void 68493052Stmmbus_space_read_region_stream_1(bus_space_tag_t t, bus_space_handle_t h, 68593052Stmm bus_size_t o, u_int8_t *a, bus_size_t c) 68686228Stmm{ 68786228Stmm for (; c; a++, c--, o++) 68886228Stmm *a = bus_space_read_stream_1(t, h, o); 68986228Stmm} 69086228Stmm 69193052Stmmstatic __inline void 69293052Stmmbus_space_read_region_stream_2(bus_space_tag_t t, bus_space_handle_t h, 69393052Stmm bus_size_t o, u_int16_t *a, bus_size_t c) 69486228Stmm{ 69586228Stmm for (; c; a++, c--, o+=2) 69686228Stmm *a = bus_space_read_stream_2(t, h, o); 69786228Stmm} 69886228Stmm 69993052Stmmstatic __inline void 70093052Stmmbus_space_read_region_stream_4(bus_space_tag_t t, bus_space_handle_t h, 70193052Stmm bus_size_t o, u_int32_t *a, bus_size_t c) 70286228Stmm{ 70386228Stmm for (; c; a++, c--, o+=4) 70486228Stmm *a = bus_space_read_stream_4(t, h, o); 70586228Stmm} 70686228Stmm 70793052Stmmstatic __inline void 70893052Stmmbus_space_read_region_stream_8(bus_space_tag_t t, bus_space_handle_t h, 70993052Stmm bus_size_t o, u_int64_t *a, bus_size_t c) 71086228Stmm{ 71186228Stmm for (; c; a++, c--, o+=8) 71286228Stmm *a = bus_space_read_stream_8(t, h, o); 71386228Stmm} 71486228Stmm 71593052Stmmstatic __inline void 71693052Stmmbus_space_write_region_stream_1(bus_space_tag_t t, bus_space_handle_t h, 71793052Stmm bus_size_t o, const u_int8_t *a, bus_size_t c) 71886228Stmm{ 71986228Stmm for (; c; a++, c--, o++) 72086228Stmm bus_space_write_stream_1(t, h, o, *a); 72186228Stmm} 72286228Stmm 72393052Stmmstatic __inline void 72493052Stmmbus_space_write_region_stream_2(bus_space_tag_t t, bus_space_handle_t h, 72593052Stmm bus_size_t o, const u_int16_t *a, bus_size_t c) 72686228Stmm{ 72786228Stmm for (; c; a++, c--, o+=2) 72886228Stmm bus_space_write_stream_2(t, h, o, *a); 72986228Stmm} 73086228Stmm 73193052Stmmstatic __inline void 73293052Stmmbus_space_write_region_stream_4(bus_space_tag_t t, bus_space_handle_t h, 73393052Stmm bus_size_t o, const u_int32_t *a, bus_size_t c) 73486228Stmm{ 73586228Stmm for (; c; a++, c--, o+=4) 73686228Stmm bus_space_write_stream_4(t, h, o, *a); 73786228Stmm} 73886228Stmm 73993052Stmmstatic __inline void 74093052Stmmbus_space_write_region_stream_8(bus_space_tag_t t, bus_space_handle_t h, 74193052Stmm bus_size_t o, const u_int64_t *a, bus_size_t c) 74286228Stmm{ 74386228Stmm for (; c; a++, c--, o+=8) 74486228Stmm bus_space_write_stream_8(t, h, o, *a); 74586228Stmm} 74686228Stmm 74793052Stmmstatic __inline void 74893052Stmmbus_space_set_region_stream_1(bus_space_tag_t t, bus_space_handle_t h, 74993052Stmm bus_size_t o, const u_int8_t v, bus_size_t c) 75086228Stmm{ 75186228Stmm for (; c; c--, o++) 75286228Stmm bus_space_write_stream_1(t, h, o, v); 75386228Stmm} 75486228Stmm 75593052Stmmstatic __inline void 75693052Stmmbus_space_set_region_stream_2(bus_space_tag_t t, bus_space_handle_t h, 75793052Stmm bus_size_t o, const u_int16_t v, bus_size_t c) 75886228Stmm{ 75986228Stmm for (; c; c--, o+=2) 76086228Stmm bus_space_write_stream_2(t, h, o, v); 76186228Stmm} 76286228Stmm 76393052Stmmstatic __inline void 76493052Stmmbus_space_set_region_stream_4(bus_space_tag_t t, bus_space_handle_t h, 76593052Stmm bus_size_t o, const u_int32_t v, bus_size_t c) 76686228Stmm{ 76786228Stmm for (; c; c--, o+=4) 76886228Stmm bus_space_write_stream_4(t, h, o, v); 76986228Stmm} 77086228Stmm 77193052Stmmstatic __inline void 77293052Stmmbus_space_set_region_stream_8(bus_space_tag_t t, bus_space_handle_t h, 77393052Stmm bus_size_t o, const u_int64_t v, bus_size_t c) 77486228Stmm{ 77586228Stmm for (; c; c--, o+=8) 77686228Stmm bus_space_write_stream_8(t, h, o, v); 77786228Stmm} 77886228Stmm 77993052Stmmstatic __inline void 78093052Stmmbus_space_copy_region_stream_1(bus_space_tag_t t, bus_space_handle_t h1, 78193052Stmm bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) 78286228Stmm{ 78386228Stmm for (; c; c--, o1++, o2++) 78486228Stmm bus_space_write_stream_1(t, h1, o1, bus_space_read_stream_1(t, h2, 78586228Stmm o2)); 78686228Stmm} 78786228Stmm 78893052Stmmstatic __inline void 78993052Stmmbus_space_copy_region_stream_2(bus_space_tag_t t, bus_space_handle_t h1, 79093052Stmm bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) 79186228Stmm{ 79286228Stmm for (; c; c--, o1+=2, o2+=2) 79386228Stmm bus_space_write_stream_2(t, h1, o1, bus_space_read_stream_2(t, h2, 79486228Stmm o2)); 79586228Stmm} 79686228Stmm 79793052Stmmstatic __inline void 79893052Stmmbus_space_copy_region_stream_4(bus_space_tag_t t, bus_space_handle_t h1, 79993052Stmm bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) 80086228Stmm{ 80186228Stmm for (; c; c--, o1+=4, o2+=4) 80286228Stmm bus_space_write_stream_4(t, h1, o1, bus_space_read_stream_4(t, h2, 80386228Stmm o2)); 80486228Stmm} 80586228Stmm 80693052Stmmstatic __inline void 80793052Stmmbus_space_copy_region_stream_8(bus_space_tag_t t, bus_space_handle_t h1, 80893052Stmm bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) 80986228Stmm{ 81086228Stmm for (; c; c--, o1+=8, o2+=8) 81186228Stmm bus_space_write_stream_8(t, h1, o1, bus_space_read_8(t, h2, o2)); 81286228Stmm} 81386228Stmm 81486228Stmm/* Back-compat functions for old ISA drivers */ 81586228Stmmextern bus_space_tag_t isa_io_bt; 81686228Stmmextern bus_space_handle_t isa_io_hdl; 81786228Stmmextern bus_space_tag_t isa_mem_bt; 81886228Stmmextern bus_space_handle_t isa_mem_hdl; 81986228Stmm 82086228Stmm#define inb(o) bus_space_read_1(isa_io_bt, isa_io_hdl, o) 82186228Stmm#define inw(o) bus_space_read_2(isa_io_bt, isa_io_hdl, o) 82286228Stmm#define inl(o) bus_space_read_4(isa_io_bt, isa_io_hdl, o) 82390615Stmm#define outb(o, v) bus_space_write_1(isa_io_bt, isa_io_hdl, o, v) 82486228Stmm#define outw(o, v) bus_space_write_2(isa_io_bt, isa_io_hdl, o, v) 82586228Stmm#define outl(o, v) bus_space_write_4(isa_io_bt, isa_io_hdl, o, v) 82686228Stmm 82786228Stmm#define readb(o) bus_space_read_1(isa_mem_bt, isa_mem_hdl, o) 82886228Stmm#define readw(o) bus_space_read_2(isa_mem_bt, isa_mem_hdl, o) 82986228Stmm#define readl(o) bus_space_read_4(isa_mem_bt, isa_mem_hdl, o) 83086228Stmm#define writeb(o, v) bus_space_write_1(isa_mem_bt, isa_mem_hdl, o, v) 83186228Stmm#define writew(o, v) bus_space_write_2(isa_mem_bt, isa_mem_hdl, o, v) 83286228Stmm#define writel(o, v) bus_space_write_4(isa_mem_bt, isa_mem_hdl, o, v) 83386228Stmm 83486228Stmm#define insb(o, a, c) \ 83586228Stmm bus_space_read_multi_1(isa_io_bt, isa_io_hdl, o, (void*)a, c) 83686228Stmm#define insw(o, a, c) \ 83786228Stmm bus_space_read_multi_2(isa_io_bt, isa_io_hdl, o, (void*)a, c) 83886228Stmm#define insl(o, a, c) \ 83986228Stmm bus_space_read_multi_4(isa_io_bt, isa_io_hdl, o, (void*)a, c) 84086228Stmm#define outsb(o, a, c) \ 84186228Stmm bus_space_write_multi_1(isa_io_bt, isa_io_hdl, o, (void*)a, c) 84286228Stmm#define outsw(o, a, c) \ 84386228Stmm bus_space_write_multi_2(isa_io_bt, isa_io_hdl, o, (void*)a, c) 84486228Stmm#define outsl(o, a, c) \ 84586228Stmm bus_space_write_multi_4(isa_io_bt, isa_io_hdl, o, (void*)a, c) 84686228Stmm 84786228Stmm#define memcpy_fromio(d, s, c) \ 84886228Stmm bus_space_read_region_1(isa_mem_bt, isa_mem_hdl, s, d, c) 84986228Stmm#define memcpy_toio(d, s, c) \ 85086228Stmm bus_space_write_region_1(isa_mem_bt, isa_mem_hdl, d, s, c) 85186228Stmm#define memcpy_io(d, s, c) \ 85286228Stmm bus_space_copy_region_1(isa_mem_bt, isa_mem_hdl, s, isa_mem_hdl, d, c) 85386228Stmm#define memset_io(d, v, c) \ 85486228Stmm bus_space_set_region_1(isa_mem_bt, isa_mem_hdl, d, v, c) 85586228Stmm#define memsetw_io(d, v, c) \ 85686228Stmm bus_space_set_region_2(isa_mem_bt, isa_mem_hdl, d, v, c) 85786228Stmm 85886228Stmmstatic __inline void 85986228Stmmmemsetw(void *d, int val, size_t size) 86086228Stmm{ 86186228Stmm u_int16_t *sp = d; 86286228Stmm 86386228Stmm while (size--) 86486228Stmm *sp++ = val; 86586228Stmm} 86686228Stmm 86786228Stmm/* DMA support */ 86886228Stmm 86986228Stmm/* 87086228Stmm * Flags used in various bus DMA methods. 87186228Stmm */ 87286228Stmm#define BUS_DMA_WAITOK 0x000 /* safe to sleep (pseudo-flag) */ 87386228Stmm#define BUS_DMA_NOWAIT 0x001 /* not safe to sleep */ 87486228Stmm#define BUS_DMA_ALLOCNOW 0x002 /* perform resource allocation now */ 875115416Shmp#define BUS_DMA_COHERENT 0x004 /* hint: map memory in a coherent way */ 87686228Stmm#define BUS_DMA_NOWRITE 0x008 87790615Stmm#define BUS_DMA_BUS1 0x010 87886228Stmm#define BUS_DMA_BUS2 0x020 87986228Stmm#define BUS_DMA_BUS3 0x040 88086228Stmm#define BUS_DMA_BUS4 0x080 88186228Stmm/* 88286228Stmm * The following flags are from NetBSD, but are not implemented for all 88386228Stmm * architetures, and should therefore not be used in MI code. 88486228Stmm * Some have different values than under NetBSD. 88586228Stmm */ 88686228Stmm#define BUS_DMA_STREAMING 0x100 /* hint: sequential, unidirectional */ 88786228Stmm#define BUS_DMA_READ 0x200 /* mapping is device -> memory only */ 88886228Stmm#define BUS_DMA_WRITE 0x400 /* mapping is memory -> device only */ 88986228Stmm 89086228Stmm#define BUS_DMA_NOCACHE BUS_DMA_BUS1 89186228Stmm/* Don't bother with alignment */ 89286228Stmm#define BUS_DMA_DVMA BUS_DMA_BUS2 89386228Stmm 89486228Stmm/* Forwards needed by prototypes below. */ 89586228Stmmstruct mbuf; 89686228Stmmstruct uio; 89786228Stmm 898115343Sscottltypedef int bus_dmasync_op_t; 899113347Smux#define BUS_DMASYNC_PREREAD 1 900113347Smux#define BUS_DMASYNC_POSTREAD 2 901113347Smux#define BUS_DMASYNC_PREWRITE 4 902113347Smux#define BUS_DMASYNC_POSTWRITE 8 90386228Stmm 90486228Stmm/* 90586228Stmm * A function that returns 1 if the address cannot be accessed by 90686228Stmm * a device and 0 if it can be. 90786228Stmm */ 90886228Stmmtypedef int bus_dma_filter_t(void *, bus_addr_t); 90986228Stmm 91086228Stmmtypedef struct bus_dma_tag *bus_dma_tag_t; 91186228Stmmtypedef struct bus_dmamap *bus_dmamap_t; 91286228Stmm 91386228Stmmstruct bus_dma_segment { 91486228Stmm bus_addr_t ds_addr; /* DVMA address */ 91586228Stmm bus_size_t ds_len; /* length of transfer */ 91686228Stmm}; 91786228Stmmtypedef struct bus_dma_segment bus_dma_segment_t; 91886228Stmm 91986228Stmm/* 92086228Stmm * A function that processes a successfully loaded dma map or an error 92186228Stmm * from a delayed load map. 92286228Stmm */ 92386228Stmmtypedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int); 92486228Stmm 92586228Stmm/* 926104486Ssam * Like bus_dmamap_callback but includes map size in bytes. This is 927104486Ssam * defined as a separate interface to maintain compatiiblity for users 928104486Ssam * of bus_dmamap_callback_t--at some point these interfaces should be merged. 929104486Ssam */ 930104486Ssamtypedef void bus_dmamap_callback2_t(void *, bus_dma_segment_t *, int, bus_size_t, int); 931104486Ssam 932104486Ssam/* 933116541Stmm * Method table for a bus_dma_tag. 934116541Stmm */ 935116541Stmmstruct bus_dma_methods { 936116541Stmm int (*dm_dmamap_create)(bus_dma_tag_t, int, bus_dmamap_t *); 937116541Stmm int (*dm_dmamap_destroy)(bus_dma_tag_t, bus_dmamap_t); 938116541Stmm int (*dm_dmamap_load)(bus_dma_tag_t, bus_dmamap_t, void *, 939116541Stmm bus_size_t, bus_dmamap_callback_t *, void *, int); 940116541Stmm int (*dm_dmamap_load_mbuf)(bus_dma_tag_t, bus_dmamap_t, 941116541Stmm struct mbuf *, bus_dmamap_callback2_t *, void *, int); 942116541Stmm int (*dm_dmamap_load_uio)(bus_dma_tag_t, bus_dmamap_t, struct uio *, 943116541Stmm bus_dmamap_callback2_t *, void *, int); 944116541Stmm void (*dm_dmamap_unload)(bus_dma_tag_t, bus_dmamap_t); 945116541Stmm void (*dm_dmamap_sync)(bus_dma_tag_t, bus_dmamap_t, 946116541Stmm bus_dmasync_op_t); 947116541Stmm int (*dm_dmamem_alloc)(bus_dma_tag_t, void **, int, bus_dmamap_t *); 948116541Stmm void (*dm_dmamem_free)(bus_dma_tag_t, void *, bus_dmamap_t); 949116541Stmm}; 950116541Stmm 951116541Stmm/* 952116541Stmm * bus_dma_tag_t 95386228Stmm * 954116541Stmm * A machine-dependent opaque type describing the implementation of 955116541Stmm * DMA for a given bus. 95686228Stmm */ 95786228Stmmstruct bus_dma_tag { 958108815Stmm void *dt_cookie; /* cookie used in the guts */ 959108815Stmm bus_dma_tag_t dt_parent; 960108815Stmm bus_size_t dt_alignment; 961108815Stmm bus_size_t dt_boundary; 962108815Stmm bus_addr_t dt_lowaddr; 963108815Stmm bus_addr_t dt_highaddr; 964108815Stmm bus_dma_filter_t *dt_filter; 965108815Stmm void *dt_filterarg; 966108815Stmm bus_size_t dt_maxsize; 967108815Stmm int dt_nsegments; 968108815Stmm bus_size_t dt_maxsegsz; 969108815Stmm int dt_flags; 970108815Stmm int dt_ref_count; 971108815Stmm int dt_map_count; 97286228Stmm 973116541Stmm struct bus_dma_methods *dt_mt; 97486228Stmm}; 97586228Stmm 97686228Stmmint bus_dma_tag_create(bus_dma_tag_t, bus_size_t, bus_size_t, bus_addr_t, 97793052Stmm bus_addr_t, bus_dma_filter_t *, void *, bus_size_t, int, bus_size_t, 97893052Stmm int, bus_dma_tag_t *); 97986228Stmm 98086228Stmmint bus_dma_tag_destroy(bus_dma_tag_t); 98186228Stmm 98286228Stmm#define bus_dmamap_create(t, f, p) \ 983116541Stmm ((t)->dt_mt->dm_dmamap_create((t), (f), (p))) 98486228Stmm#define bus_dmamap_destroy(t, p) \ 985116541Stmm ((t)->dt_mt->dm_dmamap_destroy((t), (p))) 98686228Stmm#define bus_dmamap_load(t, m, p, s, cb, cba, f) \ 987116541Stmm ((t)->dt_mt->dm_dmamap_load((t), (m), (p), (s), (cb), (cba), (f))) 988116541Stmm#define bus_dmamap_load_mbuf(t, m, mb, cb, cba, f) \ 989116541Stmm ((t)->dt_mt->dm_dmamap_load_mbuf((t), (m), (mb), (cb), (cba), (f))) 990116541Stmm#define bus_dmamap_load_uio(t, m, ui, cb, cba, f) \ 991116541Stmm ((t)->dt_mt->dm_dmamap_load_uio((t), (m), (ui), (cb), (cba), (f))) 99286228Stmm#define bus_dmamap_unload(t, p) \ 993116541Stmm ((t)->dt_mt->dm_dmamap_unload((t), (p))) 99486228Stmm#define bus_dmamap_sync(t, m, op) \ 995116541Stmm ((t)->dt_mt->dm_dmamap_sync((t), (m), (op))) 99686228Stmm#define bus_dmamem_alloc(t, v, f, m) \ 997116541Stmm ((t)->dt_mt->dm_dmamem_alloc((t), (v), (f), (m))) 99886228Stmm#define bus_dmamem_free(t, v, m) \ 999116541Stmm ((t)->dt_mt->dm_dmamem_free((t), (v), (m))) 100086228Stmm 100180708Sjake#endif /* !_MACHINE_BUS_H_ */ 1002