The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/arm/include/bus.h

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    1 /*      $NetBSD: bus.h,v 1.11 2003/07/28 17:35:54 thorpej 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 /*-
   34  * SPDX-License-Identifier: BSD-4-Clause
   35  *
   36  * Copyright (c) 1996 Charles M. Hannum.  All rights reserved.
   37  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
   38  *
   39  * Redistribution and use in source and binary forms, with or without
   40  * modification, are permitted provided that the following conditions
   41  * are met:
   42  * 1. Redistributions of source code must retain the above copyright
   43  *    notice, this list of conditions and the following disclaimer.
   44  * 2. Redistributions in binary form must reproduce the above copyright
   45  *    notice, this list of conditions and the following disclaimer in the
   46  *    documentation and/or other materials provided with the distribution.
   47  * 3. All advertising materials mentioning features or use of this software
   48  *    must display the following acknowledgement:
   49  *      This product includes software developed by Christopher G. Demetriou
   50  *      for the NetBSD Project.
   51  * 4. The name of the author may not be used to endorse or promote products
   52  *    derived from this software without specific prior written permission
   53  *
   54  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   55  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   56  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   57  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   58  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   59  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   60  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   61  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   62  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   63  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   64  *
   65  * $FreeBSD$
   66  */
   67 
   68 #ifndef _MACHINE_BUS_H_
   69 #define _MACHINE_BUS_H_
   70 
   71 #include <machine/_bus.h>
   72 
   73 /*
   74  *      int bus_space_map  (bus_space_tag_t t, bus_addr_t addr,
   75  *          bus_size_t size, int flags, bus_space_handle_t *bshp);
   76  *
   77  * Map a region of bus space.
   78  */
   79 
   80 #define BUS_SPACE_MAP_CACHEABLE         0x01
   81 #define BUS_SPACE_MAP_LINEAR            0x02
   82 #define BUS_SPACE_MAP_PREFETCHABLE      0x04
   83 
   84 /*
   85  * Bus space for ARM.
   86  *
   87  * The functions used most often are grouped together at the beginning to ensure
   88  * that all the data fits into a single cache line.  The inline implementations
   89  * of single read/write access these values a lot.
   90  */
   91 struct bus_space {
   92         /* Read/write single and barrier: the most commonly used functions. */
   93         uint8_t  (*bs_r_1)(bus_space_tag_t, bus_space_handle_t, bus_size_t);
   94         uint32_t (*bs_r_4)(bus_space_tag_t, bus_space_handle_t, bus_size_t);
   95         void     (*bs_w_1)(bus_space_tag_t, bus_space_handle_t,
   96                            bus_size_t, uint8_t);
   97         void     (*bs_w_4)(bus_space_tag_t, bus_space_handle_t,
   98                            bus_size_t, uint32_t);
   99         void     (*bs_barrier)(bus_space_tag_t, bus_space_handle_t,
  100                                bus_size_t, bus_size_t, int);
  101 
  102         /* Backlink to parent (if copied), and implementation private data. */
  103         struct bus_space *bs_parent;
  104         void             *bs_privdata;
  105 
  106         /* mapping/unmapping */
  107         int             (*bs_map) (bus_space_tag_t, bus_addr_t, bus_size_t,
  108                             int, bus_space_handle_t *);
  109         void            (*bs_unmap) (bus_space_tag_t, bus_space_handle_t, bus_size_t);
  110         int             (*bs_subregion) (bus_space_tag_t, bus_space_handle_t,
  111                             bus_size_t, bus_size_t, bus_space_handle_t *);
  112 
  113         /* allocation/deallocation */
  114         int             (*bs_alloc) (bus_space_tag_t, bus_addr_t, bus_addr_t,
  115                             bus_size_t, bus_size_t, bus_size_t, int,
  116                             bus_addr_t *, bus_space_handle_t *);
  117         void            (*bs_free) (bus_space_tag_t, bus_space_handle_t,
  118                             bus_size_t);
  119 
  120         /* Read single, the less commonly used functions. */
  121         uint16_t        (*bs_r_2) (bus_space_tag_t, bus_space_handle_t, bus_size_t);
  122         uint64_t        (*bs_r_8) (bus_space_tag_t, bus_space_handle_t, bus_size_t);
  123 
  124         /* read multiple */
  125         void            (*bs_rm_1) (bus_space_tag_t, bus_space_handle_t, bus_size_t,
  126             uint8_t *, bus_size_t);
  127         void            (*bs_rm_2) (bus_space_tag_t, bus_space_handle_t, bus_size_t,
  128             uint16_t *, bus_size_t);
  129         void            (*bs_rm_4) (bus_space_tag_t, bus_space_handle_t,
  130                             bus_size_t, uint32_t *, bus_size_t);
  131         void            (*bs_rm_8) (bus_space_tag_t, bus_space_handle_t,
  132                             bus_size_t, uint64_t *, bus_size_t);
  133 
  134         /* read region */
  135         void            (*bs_rr_1) (bus_space_tag_t, bus_space_handle_t,
  136                             bus_size_t, uint8_t *, bus_size_t);
  137         void            (*bs_rr_2) (bus_space_tag_t, bus_space_handle_t,
  138                             bus_size_t, uint16_t *, bus_size_t);
  139         void            (*bs_rr_4) (bus_space_tag_t, bus_space_handle_t,
  140                             bus_size_t, uint32_t *, bus_size_t);
  141         void            (*bs_rr_8) (bus_space_tag_t, bus_space_handle_t,
  142                             bus_size_t, uint64_t *, bus_size_t);
  143 
  144         /* Write single, the less commonly used functions. */
  145         void            (*bs_w_2) (bus_space_tag_t, bus_space_handle_t,
  146                             bus_size_t, uint16_t);
  147         void            (*bs_w_8) (bus_space_tag_t, bus_space_handle_t,
  148                             bus_size_t, uint64_t);
  149 
  150         /* write multiple */
  151         void            (*bs_wm_1) (bus_space_tag_t, bus_space_handle_t,
  152                             bus_size_t, const uint8_t *, bus_size_t);
  153         void            (*bs_wm_2) (bus_space_tag_t, bus_space_handle_t,
  154                             bus_size_t, const uint16_t *, bus_size_t);
  155         void            (*bs_wm_4) (bus_space_tag_t, bus_space_handle_t,
  156                             bus_size_t, const uint32_t *, bus_size_t);
  157         void            (*bs_wm_8) (bus_space_tag_t, bus_space_handle_t,
  158                             bus_size_t, const uint64_t *, bus_size_t);
  159 
  160         /* write region */
  161         void            (*bs_wr_1) (bus_space_tag_t, bus_space_handle_t,
  162                             bus_size_t, const uint8_t *, bus_size_t);
  163         void            (*bs_wr_2) (bus_space_tag_t, bus_space_handle_t,
  164                             bus_size_t, const uint16_t *, bus_size_t);
  165         void            (*bs_wr_4) (bus_space_tag_t, bus_space_handle_t,
  166                             bus_size_t, const uint32_t *, bus_size_t);
  167         void            (*bs_wr_8) (bus_space_tag_t, bus_space_handle_t,
  168                             bus_size_t, const uint64_t *, bus_size_t);
  169 
  170         /* set multiple */
  171         void            (*bs_sm_1) (bus_space_tag_t, bus_space_handle_t,
  172                             bus_size_t, uint8_t, bus_size_t);
  173         void            (*bs_sm_2) (bus_space_tag_t, bus_space_handle_t,
  174                             bus_size_t, uint16_t, bus_size_t);
  175         void            (*bs_sm_4) (bus_space_tag_t, bus_space_handle_t,
  176                             bus_size_t, uint32_t, bus_size_t);
  177         void            (*bs_sm_8) (bus_space_tag_t, bus_space_handle_t,
  178                             bus_size_t, uint64_t, bus_size_t);
  179 
  180         /* set region */
  181         void            (*bs_sr_1) (bus_space_tag_t, bus_space_handle_t,
  182                             bus_size_t, uint8_t, bus_size_t);
  183         void            (*bs_sr_2) (bus_space_tag_t, bus_space_handle_t,
  184                             bus_size_t, uint16_t, bus_size_t);
  185         void            (*bs_sr_4) (bus_space_tag_t, bus_space_handle_t,
  186                             bus_size_t, uint32_t, bus_size_t);
  187         void            (*bs_sr_8) (bus_space_tag_t, bus_space_handle_t,
  188                             bus_size_t, uint64_t, bus_size_t);
  189 
  190         /* copy */
  191         void            (*bs_c_1) (bus_space_tag_t, bus_space_handle_t, bus_size_t,
  192                             bus_space_handle_t, bus_size_t, bus_size_t);
  193         void            (*bs_c_2) (bus_space_tag_t, bus_space_handle_t, bus_size_t,
  194                             bus_space_handle_t, bus_size_t, bus_size_t);
  195         void            (*bs_c_4) (bus_space_tag_t, bus_space_handle_t, bus_size_t,
  196                             bus_space_handle_t, bus_size_t, bus_size_t);
  197         void            (*bs_c_8) (bus_space_tag_t, bus_space_handle_t, bus_size_t,
  198                             bus_space_handle_t, bus_size_t, bus_size_t);
  199 
  200         /* read stream (single) */
  201         uint8_t (*bs_r_1_s) (bus_space_tag_t, bus_space_handle_t, bus_size_t);
  202         uint16_t        (*bs_r_2_s) (bus_space_tag_t, bus_space_handle_t, bus_size_t);
  203         uint32_t        (*bs_r_4_s) (bus_space_tag_t, bus_space_handle_t, bus_size_t);
  204         uint64_t        (*bs_r_8_s) (bus_space_tag_t, bus_space_handle_t, bus_size_t);
  205 
  206         /* read multiple stream */
  207         void            (*bs_rm_1_s) (bus_space_tag_t, bus_space_handle_t, bus_size_t,
  208             uint8_t *, bus_size_t);
  209         void            (*bs_rm_2_s) (bus_space_tag_t, bus_space_handle_t, bus_size_t,
  210             uint16_t *, bus_size_t);
  211         void            (*bs_rm_4_s) (bus_space_tag_t, bus_space_handle_t,
  212                             bus_size_t, uint32_t *, bus_size_t);
  213         void            (*bs_rm_8_s) (bus_space_tag_t, bus_space_handle_t,
  214                             bus_size_t, uint64_t *, bus_size_t);
  215 
  216         /* read region stream */
  217         void            (*bs_rr_1_s) (bus_space_tag_t, bus_space_handle_t,
  218                             bus_size_t, uint8_t *, bus_size_t);
  219         void            (*bs_rr_2_s) (bus_space_tag_t, bus_space_handle_t,
  220                             bus_size_t, uint16_t *, bus_size_t);
  221         void            (*bs_rr_4_s) (bus_space_tag_t, bus_space_handle_t,
  222                             bus_size_t, uint32_t *, bus_size_t);
  223         void            (*bs_rr_8_s) (bus_space_tag_t, bus_space_handle_t,
  224                             bus_size_t, uint64_t *, bus_size_t);
  225 
  226         /* write stream (single) */
  227         void            (*bs_w_1_s) (bus_space_tag_t, bus_space_handle_t,
  228                             bus_size_t, uint8_t);
  229         void            (*bs_w_2_s) (bus_space_tag_t, bus_space_handle_t,
  230                             bus_size_t, uint16_t);
  231         void            (*bs_w_4_s) (bus_space_tag_t, bus_space_handle_t,
  232                             bus_size_t, uint32_t);
  233         void            (*bs_w_8_s) (bus_space_tag_t, bus_space_handle_t,
  234                             bus_size_t, uint64_t);
  235 
  236         /* write multiple stream */
  237         void            (*bs_wm_1_s) (bus_space_tag_t, bus_space_handle_t,
  238                             bus_size_t, const uint8_t *, bus_size_t);
  239         void            (*bs_wm_2_s) (bus_space_tag_t, bus_space_handle_t,
  240                             bus_size_t, const uint16_t *, bus_size_t);
  241         void            (*bs_wm_4_s) (bus_space_tag_t, bus_space_handle_t,
  242                             bus_size_t, const uint32_t *, bus_size_t);
  243         void            (*bs_wm_8_s) (bus_space_tag_t, bus_space_handle_t,
  244                             bus_size_t, const uint64_t *, bus_size_t);
  245 
  246         /* write region stream */
  247         void            (*bs_wr_1_s) (bus_space_tag_t, bus_space_handle_t,
  248                             bus_size_t, const uint8_t *, bus_size_t);
  249         void            (*bs_wr_2_s) (bus_space_tag_t, bus_space_handle_t,
  250                             bus_size_t, const uint16_t *, bus_size_t);
  251         void            (*bs_wr_4_s) (bus_space_tag_t, bus_space_handle_t,
  252                             bus_size_t, const uint32_t *, bus_size_t);
  253         void            (*bs_wr_8_s) (bus_space_tag_t, bus_space_handle_t,
  254                             bus_size_t, const uint64_t *, bus_size_t);
  255 };
  256 
  257 /*
  258  * Utility macros; INTERNAL USE ONLY.
  259  */
  260 #define __bs_c(a,b)             __CONCAT(a,b)
  261 #define __bs_opname(op,size)    __bs_c(__bs_c(__bs_c(bs_,op),_),size)
  262 
  263 #define __bs_nonsingle(type, sz, t, h, o, a, c)                         \
  264         (*(t)->__bs_opname(type,sz))((t), h, o, a, c)
  265 #define __bs_set(type, sz, t, h, o, v, c)                               \
  266         (*(t)->__bs_opname(type,sz))((t), h, o, v, c)
  267 #define __bs_copy(sz, t, h1, o1, h2, o2, cnt)                           \
  268         (*(t)->__bs_opname(c,sz))((t), h1, o1, h2, o2, cnt)
  269 
  270 #define __bs_opname_s(op,size)  __bs_c(__bs_c(__bs_c(__bs_c(bs_,op),_),size),_s)
  271 #define __bs_rs_s(sz, t, h, o)                                          \
  272         (*(t)->__bs_opname_s(r,sz))((t), h, o)
  273 #define __bs_ws_s(sz, t, h, o, v)                                       \
  274         (*(t)->__bs_opname_s(w,sz))((t), h, o, v)
  275 #define __bs_nonsingle_s(type, sz, t, h, o, a, c)                       \
  276         (*(t)->__bs_opname_s(type,sz))((t), h, o, a, c)
  277 
  278 #define __generate_inline_bs_rs(IFN, MBR, TYP)                                  \
  279         static inline TYP                                               \
  280         IFN(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)      \
  281         {                                                               \
  282                                                                         \
  283                 if (__predict_true(t->MBR == NULL))                     \
  284                         return (*(volatile TYP *)(h + o));              \
  285                 else                                                    \
  286                         return (t->MBR(t, h, o));               \
  287         }
  288 
  289 #define __generate_inline_bs_ws(IFN, MBR, TYP)                                  \
  290         static inline void                                              \
  291         IFN(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, TYP v)\
  292         {                                                               \
  293                                                                         \
  294                 if (__predict_true(t->MBR == NULL))                     \
  295                         *(volatile TYP *)(h + o) = v;                   \
  296                 else                                                    \
  297                         t->MBR(t, h, o, v);                     \
  298         }
  299 
  300 /*
  301  * Mapping and unmapping operations.
  302  */
  303 #define bus_space_map(t, a, s, c, hp)                                   \
  304         (*(t)->bs_map)((t), (a), (s), (c), (hp))
  305 #define bus_space_unmap(t, h, s)                                        \
  306         (*(t)->bs_unmap)((t), (h), (s))
  307 #define bus_space_subregion(t, h, o, s, hp)                             \
  308         (*(t)->bs_subregion)((t), (h), (o), (s), (hp))
  309 
  310 /*
  311  * Allocation and deallocation operations.
  312  */
  313 #define bus_space_alloc(t, rs, re, s, a, b, c, ap, hp)                  \
  314         (*(t)->bs_alloc)((t), (rs), (re), (s), (a), (b),        \
  315             (c), (ap), (hp))
  316 #define bus_space_free(t, h, s)                                         \
  317         (*(t)->bs_free)((t), (h), (s))
  318 
  319 /*
  320  * Bus barrier operations.
  321  */
  322 #define bus_space_barrier(t, h, o, l, f)                                \
  323         (*(t)->bs_barrier)((t), (h), (o), (l), (f))
  324 
  325 #define BUS_SPACE_BARRIER_READ  0x01
  326 #define BUS_SPACE_BARRIER_WRITE 0x02
  327 
  328 /*
  329  * Bus read (single) operations.
  330  */
  331 __generate_inline_bs_rs(bus_space_read_1, bs_r_1, uint8_t);
  332 __generate_inline_bs_rs(bus_space_read_2, bs_r_2, uint16_t);
  333 __generate_inline_bs_rs(bus_space_read_4, bs_r_4, uint32_t);
  334 __generate_inline_bs_rs(bus_space_read_8, bs_r_8, uint64_t);
  335 
  336 __generate_inline_bs_rs(bus_space_read_stream_1, bs_r_1_s, uint8_t);
  337 __generate_inline_bs_rs(bus_space_read_stream_2, bs_r_2_s, uint16_t);
  338 __generate_inline_bs_rs(bus_space_read_stream_4, bs_r_4_s, uint32_t);
  339 __generate_inline_bs_rs(bus_space_read_stream_8, bs_r_8_s, uint64_t);
  340 
  341 /*
  342  * Bus read multiple operations.
  343  */
  344 #define bus_space_read_multi_1(t, h, o, a, c)                           \
  345         __bs_nonsingle(rm,1,(t),(h),(o),(a),(c))
  346 #define bus_space_read_multi_2(t, h, o, a, c)                           \
  347         __bs_nonsingle(rm,2,(t),(h),(o),(a),(c))
  348 #define bus_space_read_multi_4(t, h, o, a, c)                           \
  349         __bs_nonsingle(rm,4,(t),(h),(o),(a),(c))
  350 #define bus_space_read_multi_8(t, h, o, a, c)                           \
  351         __bs_nonsingle(rm,8,(t),(h),(o),(a),(c))
  352 
  353 #define bus_space_read_multi_stream_1(t, h, o, a, c)                    \
  354         __bs_nonsingle_s(rm,1,(t),(h),(o),(a),(c))
  355 #define bus_space_read_multi_stream_2(t, h, o, a, c)                    \
  356         __bs_nonsingle_s(rm,2,(t),(h),(o),(a),(c))
  357 #define bus_space_read_multi_stream_4(t, h, o, a, c)                    \
  358         __bs_nonsingle_s(rm,4,(t),(h),(o),(a),(c))
  359 #define bus_space_read_multi_stream_8(t, h, o, a, c)                    \
  360         __bs_nonsingle_s(rm,8,(t),(h),(o),(a),(c))
  361 
  362 /*
  363  * Bus read region operations.
  364  */
  365 #define bus_space_read_region_1(t, h, o, a, c)                          \
  366         __bs_nonsingle(rr,1,(t),(h),(o),(a),(c))
  367 #define bus_space_read_region_2(t, h, o, a, c)                          \
  368         __bs_nonsingle(rr,2,(t),(h),(o),(a),(c))
  369 #define bus_space_read_region_4(t, h, o, a, c)                          \
  370         __bs_nonsingle(rr,4,(t),(h),(o),(a),(c))
  371 #define bus_space_read_region_8(t, h, o, a, c)                          \
  372         __bs_nonsingle(rr,8,(t),(h),(o),(a),(c))
  373 
  374 #define bus_space_read_region_stream_1(t, h, o, a, c)                   \
  375         __bs_nonsingle_s(rr,1,(t),(h),(o),(a),(c))
  376 #define bus_space_read_region_stream_2(t, h, o, a, c)                   \
  377         __bs_nonsingle_s(rr,2,(t),(h),(o),(a),(c))
  378 #define bus_space_read_region_stream_4(t, h, o, a, c)                   \
  379         __bs_nonsingle_s(rr,4,(t),(h),(o),(a),(c))
  380 #define bus_space_read_region_stream_8(t, h, o, a, c)                   \
  381         __bs_nonsingle_s(rr,8,(t),(h),(o),(a),(c))
  382 
  383 /*
  384  * Bus write (single) operations.
  385  */
  386 __generate_inline_bs_ws(bus_space_write_1, bs_w_1, uint8_t);
  387 __generate_inline_bs_ws(bus_space_write_2, bs_w_2, uint16_t);
  388 __generate_inline_bs_ws(bus_space_write_4, bs_w_4, uint32_t);
  389 __generate_inline_bs_ws(bus_space_write_8, bs_w_8, uint64_t);
  390 
  391 __generate_inline_bs_ws(bus_space_write_stream_1, bs_w_1_s, uint8_t);
  392 __generate_inline_bs_ws(bus_space_write_stream_2, bs_w_2_s, uint16_t);
  393 __generate_inline_bs_ws(bus_space_write_stream_4, bs_w_4_s, uint32_t);
  394 __generate_inline_bs_ws(bus_space_write_stream_8, bs_w_8_s, uint64_t);
  395 
  396 /*
  397  * Bus write multiple operations.
  398  */
  399 #define bus_space_write_multi_1(t, h, o, a, c)                          \
  400         __bs_nonsingle(wm,1,(t),(h),(o),(a),(c))
  401 #define bus_space_write_multi_2(t, h, o, a, c)                          \
  402         __bs_nonsingle(wm,2,(t),(h),(o),(a),(c))
  403 #define bus_space_write_multi_4(t, h, o, a, c)                          \
  404         __bs_nonsingle(wm,4,(t),(h),(o),(a),(c))
  405 #define bus_space_write_multi_8(t, h, o, a, c)                          \
  406         __bs_nonsingle(wm,8,(t),(h),(o),(a),(c))
  407 
  408 #define bus_space_write_multi_stream_1(t, h, o, a, c)                   \
  409         __bs_nonsingle_s(wm,1,(t),(h),(o),(a),(c))
  410 #define bus_space_write_multi_stream_2(t, h, o, a, c)                   \
  411         __bs_nonsingle_s(wm,2,(t),(h),(o),(a),(c))
  412 #define bus_space_write_multi_stream_4(t, h, o, a, c)                   \
  413         __bs_nonsingle_s(wm,4,(t),(h),(o),(a),(c))
  414 #define bus_space_write_multi_stream_8(t, h, o, a, c)                   \
  415         __bs_nonsingle_s(wm,8,(t),(h),(o),(a),(c))
  416 
  417 /*
  418  * Bus write region operations.
  419  */
  420 #define bus_space_write_region_1(t, h, o, a, c)                         \
  421         __bs_nonsingle(wr,1,(t),(h),(o),(a),(c))
  422 #define bus_space_write_region_2(t, h, o, a, c)                         \
  423         __bs_nonsingle(wr,2,(t),(h),(o),(a),(c))
  424 #define bus_space_write_region_4(t, h, o, a, c)                         \
  425         __bs_nonsingle(wr,4,(t),(h),(o),(a),(c))
  426 #define bus_space_write_region_8(t, h, o, a, c)                         \
  427         __bs_nonsingle(wr,8,(t),(h),(o),(a),(c))
  428 
  429 #define bus_space_write_region_stream_1(t, h, o, a, c)                  \
  430         __bs_nonsingle_s(wr,1,(t),(h),(o),(a),(c))
  431 #define bus_space_write_region_stream_2(t, h, o, a, c)                  \
  432         __bs_nonsingle_s(wr,2,(t),(h),(o),(a),(c))
  433 #define bus_space_write_region_stream_4(t, h, o, a, c)                  \
  434         __bs_nonsingle_s(wr,4,(t),(h),(o),(a),(c))
  435 #define bus_space_write_region_stream_8(t, h, o, a, c)                  \
  436         __bs_nonsingle_s(wr,8,(t),(h),(o),(a),(c))
  437 
  438 /*
  439  * Set multiple operations.
  440  */
  441 #define bus_space_set_multi_1(t, h, o, v, c)                            \
  442         __bs_set(sm,1,(t),(h),(o),(v),(c))
  443 #define bus_space_set_multi_2(t, h, o, v, c)                            \
  444         __bs_set(sm,2,(t),(h),(o),(v),(c))
  445 #define bus_space_set_multi_4(t, h, o, v, c)                            \
  446         __bs_set(sm,4,(t),(h),(o),(v),(c))
  447 #define bus_space_set_multi_8(t, h, o, v, c)                            \
  448         __bs_set(sm,8,(t),(h),(o),(v),(c))
  449 
  450 /*
  451  * Set region operations.
  452  */
  453 #define bus_space_set_region_1(t, h, o, v, c)                           \
  454         __bs_set(sr,1,(t),(h),(o),(v),(c))
  455 #define bus_space_set_region_2(t, h, o, v, c)                           \
  456         __bs_set(sr,2,(t),(h),(o),(v),(c))
  457 #define bus_space_set_region_4(t, h, o, v, c)                           \
  458         __bs_set(sr,4,(t),(h),(o),(v),(c))
  459 #define bus_space_set_region_8(t, h, o, v, c)                           \
  460         __bs_set(sr,8,(t),(h),(o),(v),(c))
  461 
  462 /*
  463  * Copy operations.
  464  */
  465 #define bus_space_copy_region_1(t, h1, o1, h2, o2, c)                           \
  466         __bs_copy(1, t, h1, o1, h2, o2, c)
  467 #define bus_space_copy_region_2(t, h1, o1, h2, o2, c)                           \
  468         __bs_copy(2, t, h1, o1, h2, o2, c)
  469 #define bus_space_copy_region_4(t, h1, o1, h2, o2, c)                           \
  470         __bs_copy(4, t, h1, o1, h2, o2, c)
  471 #define bus_space_copy_region_8(t, h1, o1, h2, o2, c)                           \
  472         __bs_copy(8, t, h1, o1, h2, o2, c)
  473 
  474 /*
  475  * Macros to provide prototypes for all the functions used in the
  476  * bus_space structure
  477  */
  478 
  479 #define bs_map_proto(f)                                                 \
  480 int     __bs_c(f,_bs_map) (bus_space_tag_t t, bus_addr_t addr,          \
  481             bus_size_t size, int cacheable, bus_space_handle_t *bshp);
  482 
  483 #define bs_unmap_proto(f)                                               \
  484 void    __bs_c(f,_bs_unmap) (bus_space_tag_t t, bus_space_handle_t bsh,         \
  485             bus_size_t size);
  486 
  487 #define bs_subregion_proto(f)                                           \
  488 int     __bs_c(f,_bs_subregion) (bus_space_tag_t t, bus_space_handle_t bsh,     \
  489             bus_size_t offset, bus_size_t size,                         \
  490             bus_space_handle_t *nbshp);
  491 
  492 #define bs_alloc_proto(f)                                               \
  493 int     __bs_c(f,_bs_alloc) (bus_space_tag_t t, bus_addr_t rstart,              \
  494             bus_addr_t rend, bus_size_t size, bus_size_t align,         \
  495             bus_size_t boundary, int cacheable, bus_addr_t *addrp,      \
  496             bus_space_handle_t *bshp);
  497 
  498 #define bs_free_proto(f)                                                \
  499 void    __bs_c(f,_bs_free) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  500             bus_size_t size);
  501 
  502 #define bs_mmap_proto(f)                                                \
  503 int     __bs_c(f,_bs_mmap) (struct cdev *, vm_offset_t, vm_paddr_t *, int);
  504 
  505 #define bs_barrier_proto(f)                                             \
  506 void    __bs_c(f,_bs_barrier) (bus_space_tag_t t, bus_space_handle_t bsh,       \
  507             bus_size_t offset, bus_size_t len, int flags);
  508 
  509 #define bs_r_1_proto(f)                                                 \
  510 uint8_t __bs_c(f,_bs_r_1) (bus_space_tag_t t, bus_space_handle_t bsh,   \
  511                     bus_size_t offset);
  512 
  513 #define bs_r_2_proto(f)                                                 \
  514 uint16_t        __bs_c(f,_bs_r_2) (bus_space_tag_t t, bus_space_handle_t bsh,   \
  515                     bus_size_t offset);
  516 
  517 #define bs_r_4_proto(f)                                                 \
  518 uint32_t        __bs_c(f,_bs_r_4) (bus_space_tag_t t, bus_space_handle_t bsh,   \
  519                     bus_size_t offset);
  520 
  521 #define bs_r_8_proto(f)                                                 \
  522 uint64_t        __bs_c(f,_bs_r_8) (bus_space_tag_t t, bus_space_handle_t bsh,   \
  523                     bus_size_t offset);
  524 
  525 #define bs_r_1_s_proto(f)                                               \
  526 uint8_t __bs_c(f,_bs_r_1_s) (bus_space_tag_t t, bus_space_handle_t bsh, \
  527                     bus_size_t offset);
  528 
  529 #define bs_r_2_s_proto(f)                                               \
  530 uint16_t        __bs_c(f,_bs_r_2_s) (bus_space_tag_t t, bus_space_handle_t bsh, \
  531                     bus_size_t offset);
  532 
  533 #define bs_r_4_s_proto(f)                                               \
  534 uint32_t        __bs_c(f,_bs_r_4_s) (bus_space_tag_t t, bus_space_handle_t bsh, \
  535                     bus_size_t offset);
  536 
  537 #define bs_w_1_proto(f)                                                 \
  538 void    __bs_c(f,_bs_w_1) (bus_space_tag_t t, bus_space_handle_t bsh,           \
  539             bus_size_t offset, uint8_t value);
  540 
  541 #define bs_w_2_proto(f)                                                 \
  542 void    __bs_c(f,_bs_w_2) (bus_space_tag_t t, bus_space_handle_t bsh,           \
  543             bus_size_t offset, uint16_t value);
  544 
  545 #define bs_w_4_proto(f)                                                 \
  546 void    __bs_c(f,_bs_w_4) (bus_space_tag_t t, bus_space_handle_t bsh,           \
  547             bus_size_t offset, uint32_t value);
  548 
  549 #define bs_w_8_proto(f)                                                 \
  550 void    __bs_c(f,_bs_w_8) (bus_space_tag_t t, bus_space_handle_t bsh,           \
  551             bus_size_t offset, uint64_t value);
  552 
  553 #define bs_w_1_s_proto(f)                                               \
  554 void    __bs_c(f,_bs_w_1_s) (bus_space_tag_t t, bus_space_handle_t bsh,         \
  555             bus_size_t offset, uint8_t value);
  556 
  557 #define bs_w_2_s_proto(f)                                               \
  558 void    __bs_c(f,_bs_w_2_s) (bus_space_tag_t t, bus_space_handle_t bsh,         \
  559             bus_size_t offset, uint16_t value);
  560 
  561 #define bs_w_4_s_proto(f)                                               \
  562 void    __bs_c(f,_bs_w_4_s) (bus_space_tag_t t, bus_space_handle_t bsh,         \
  563             bus_size_t offset, uint32_t value);
  564 
  565 #define bs_rm_1_proto(f)                                                \
  566 void    __bs_c(f,_bs_rm_1) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  567             bus_size_t offset, uint8_t *addr, bus_size_t count);
  568 
  569 #define bs_rm_2_proto(f)                                                \
  570 void    __bs_c(f,_bs_rm_2) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  571             bus_size_t offset, uint16_t *addr, bus_size_t count);
  572 
  573 #define bs_rm_4_proto(f)                                                \
  574 void    __bs_c(f,_bs_rm_4) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  575             bus_size_t offset, uint32_t *addr, bus_size_t count);
  576 
  577 #define bs_rm_8_proto(f)                                                \
  578 void    __bs_c(f,_bs_rm_8) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  579             bus_size_t offset, uint64_t *addr, bus_size_t count);
  580 
  581 #define bs_wm_1_proto(f)                                                \
  582 void    __bs_c(f,_bs_wm_1) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  583             bus_size_t offset, const uint8_t *addr, bus_size_t count);
  584 
  585 #define bs_wm_2_proto(f)                                                \
  586 void    __bs_c(f,_bs_wm_2) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  587             bus_size_t offset, const uint16_t *addr, bus_size_t count);
  588 
  589 #define bs_wm_4_proto(f)                                                \
  590 void    __bs_c(f,_bs_wm_4) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  591             bus_size_t offset, const uint32_t *addr, bus_size_t count);
  592 
  593 #define bs_wm_8_proto(f)                                                \
  594 void    __bs_c(f,_bs_wm_8) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  595             bus_size_t offset, const uint64_t *addr, bus_size_t count);
  596 
  597 #define bs_rr_1_proto(f)                                                \
  598 void    __bs_c(f, _bs_rr_1) (bus_space_tag_t t, bus_space_handle_t bsh, \
  599             bus_size_t offset, uint8_t *addr, bus_size_t count);
  600 
  601 #define bs_rr_2_proto(f)                                                \
  602 void    __bs_c(f, _bs_rr_2) (bus_space_tag_t t, bus_space_handle_t bsh, \
  603             bus_size_t offset, uint16_t *addr, bus_size_t count);
  604 
  605 #define bs_rr_4_proto(f)                                                \
  606 void    __bs_c(f, _bs_rr_4) (bus_space_tag_t t, bus_space_handle_t bsh, \
  607             bus_size_t offset, uint32_t *addr, bus_size_t count);
  608 
  609 #define bs_rr_8_proto(f)                                                \
  610 void    __bs_c(f, _bs_rr_8) (bus_space_tag_t t, bus_space_handle_t bsh, \
  611             bus_size_t offset, uint64_t *addr, bus_size_t count);
  612 
  613 #define bs_wr_1_proto(f)                                                \
  614 void    __bs_c(f, _bs_wr_1) (bus_space_tag_t t, bus_space_handle_t bsh, \
  615             bus_size_t offset, const uint8_t *addr, bus_size_t count);
  616 
  617 #define bs_wr_2_proto(f)                                                \
  618 void    __bs_c(f, _bs_wr_2) (bus_space_tag_t t, bus_space_handle_t bsh, \
  619             bus_size_t offset, const uint16_t *addr, bus_size_t count);
  620 
  621 #define bs_wr_4_proto(f)                                                \
  622 void    __bs_c(f, _bs_wr_4) (bus_space_tag_t t, bus_space_handle_t bsh, \
  623             bus_size_t offset, const uint32_t *addr, bus_size_t count);
  624 
  625 #define bs_wr_8_proto(f)                                                \
  626 void    __bs_c(f, _bs_wr_8) (bus_space_tag_t t, bus_space_handle_t bsh, \
  627             bus_size_t offset, const uint64_t *addr, bus_size_t count);
  628 
  629 #define bs_sm_1_proto(f)                                                \
  630 void    __bs_c(f,_bs_sm_1) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  631             bus_size_t offset, uint8_t value, bus_size_t count);
  632 
  633 #define bs_sm_2_proto(f)                                                \
  634 void    __bs_c(f,_bs_sm_2) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  635             bus_size_t offset, uint16_t value, bus_size_t count);
  636 
  637 #define bs_sm_4_proto(f)                                                \
  638 void    __bs_c(f,_bs_sm_4) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  639             bus_size_t offset, uint32_t value, bus_size_t count);
  640 
  641 #define bs_sm_8_proto(f)                                                \
  642 void    __bs_c(f,_bs_sm_8) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  643             bus_size_t offset, uint64_t value, bus_size_t count);
  644 
  645 #define bs_sr_1_proto(f)                                                \
  646 void    __bs_c(f,_bs_sr_1) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  647             bus_size_t offset, uint8_t value, bus_size_t count);
  648 
  649 #define bs_sr_2_proto(f)                                                \
  650 void    __bs_c(f,_bs_sr_2) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  651             bus_size_t offset, uint16_t value, bus_size_t count);
  652 
  653 #define bs_sr_4_proto(f)                                                \
  654 void    __bs_c(f,_bs_sr_4) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  655             bus_size_t offset, uint32_t value, bus_size_t count);
  656 
  657 #define bs_sr_8_proto(f)                                                \
  658 void    __bs_c(f,_bs_sr_8) (bus_space_tag_t t, bus_space_handle_t bsh,  \
  659             bus_size_t offset, uint64_t value, bus_size_t count);
  660 
  661 #define bs_c_1_proto(f)                                                 \
  662 void    __bs_c(f,_bs_c_1) (bus_space_tag_t t, bus_space_handle_t bsh1,  \
  663             bus_size_t offset1, bus_space_handle_t bsh2,                \
  664             bus_size_t offset2, bus_size_t count);
  665 
  666 #define bs_c_2_proto(f)                                                 \
  667 void    __bs_c(f,_bs_c_2) (bus_space_tag_t t, bus_space_handle_t bsh1,  \
  668             bus_size_t offset1, bus_space_handle_t bsh2,                \
  669             bus_size_t offset2, bus_size_t count);
  670 
  671 #define bs_c_4_proto(f)                                                 \
  672 void    __bs_c(f,_bs_c_4) (bus_space_tag_t t, bus_space_handle_t bsh1,  \
  673             bus_size_t offset1, bus_space_handle_t bsh2,                \
  674             bus_size_t offset2, bus_size_t count);
  675 
  676 #define bs_c_8_proto(f)                                                 \
  677 void    __bs_c(f,_bs_c_8) (bus_space_tag_t t, bus_space_handle_t bsh1,  \
  678             bus_size_t offset1, bus_space_handle_t bsh2,                \
  679             bus_size_t offset2, bus_size_t count);
  680 
  681 #define bs_protos(f)            \
  682 bs_map_proto(f);                \
  683 bs_unmap_proto(f);              \
  684 bs_subregion_proto(f);          \
  685 bs_alloc_proto(f);              \
  686 bs_free_proto(f);               \
  687 bs_mmap_proto(f);               \
  688 bs_barrier_proto(f);            \
  689 bs_r_1_proto(f);                \
  690 bs_r_2_proto(f);                \
  691 bs_r_4_proto(f);                \
  692 bs_r_8_proto(f);                \
  693 bs_r_1_s_proto(f);              \
  694 bs_r_2_s_proto(f);              \
  695 bs_r_4_s_proto(f);              \
  696 bs_w_1_proto(f);                \
  697 bs_w_2_proto(f);                \
  698 bs_w_4_proto(f);                \
  699 bs_w_8_proto(f);                \
  700 bs_w_1_s_proto(f);              \
  701 bs_w_2_s_proto(f);              \
  702 bs_w_4_s_proto(f);              \
  703 bs_rm_1_proto(f);               \
  704 bs_rm_2_proto(f);               \
  705 bs_rm_4_proto(f);               \
  706 bs_rm_8_proto(f);               \
  707 bs_wm_1_proto(f);               \
  708 bs_wm_2_proto(f);               \
  709 bs_wm_4_proto(f);               \
  710 bs_wm_8_proto(f);               \
  711 bs_rr_1_proto(f);               \
  712 bs_rr_2_proto(f);               \
  713 bs_rr_4_proto(f);               \
  714 bs_rr_8_proto(f);               \
  715 bs_wr_1_proto(f);               \
  716 bs_wr_2_proto(f);               \
  717 bs_wr_4_proto(f);               \
  718 bs_wr_8_proto(f);               \
  719 bs_sm_1_proto(f);               \
  720 bs_sm_2_proto(f);               \
  721 bs_sm_4_proto(f);               \
  722 bs_sm_8_proto(f);               \
  723 bs_sr_1_proto(f);               \
  724 bs_sr_2_proto(f);               \
  725 bs_sr_4_proto(f);               \
  726 bs_sr_8_proto(f);               \
  727 bs_c_1_proto(f);                \
  728 bs_c_2_proto(f);                \
  729 bs_c_4_proto(f);                \
  730 bs_c_8_proto(f);
  731 
  732 void generic_bs_unimplemented(void);
  733 #define BS_UNIMPLEMENTED        (void *)generic_bs_unimplemented
  734 
  735 #define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t)
  736 
  737 #define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF
  738 #define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
  739 #define BUS_SPACE_MAXADDR       0xFFFFFFFF
  740 #define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF
  741 #define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
  742 #define BUS_SPACE_MAXSIZE       0xFFFFFFFF
  743 
  744 #define BUS_SPACE_UNRESTRICTED  (~0)
  745 
  746 #define BUS_PEEK_FUNC(width, type)                                      \
  747         static inline int                                               \
  748         bus_space_peek_##width(bus_space_tag_t tag,                     \
  749             bus_space_handle_t hnd, bus_size_t offset, type *value)     \
  750         {                                                               \
  751                 type tmp;                                               \
  752                 tmp = bus_space_read_##width(tag, hnd, offset);         \
  753                 *value = (type)tmp;                                     \
  754                 return (0);                                             \
  755         }
  756 BUS_PEEK_FUNC(1, uint8_t)
  757 BUS_PEEK_FUNC(2, uint16_t)
  758 BUS_PEEK_FUNC(4, uint32_t)
  759 BUS_PEEK_FUNC(8, uint64_t)
  760 
  761 #define BUS_POKE_FUNC(width, type)                                      \
  762         static inline int                                               \
  763         bus_space_poke_##width(bus_space_tag_t tag,                     \
  764             bus_space_handle_t hnd, bus_size_t offset, type value)      \
  765         {                                                               \
  766                 bus_space_write_##width(tag, hnd, offset, value);       \
  767                 return (0);                                             \
  768         }
  769 BUS_POKE_FUNC(1, uint8_t)
  770 BUS_POKE_FUNC(2, uint16_t)
  771 BUS_POKE_FUNC(4, uint32_t)
  772 BUS_POKE_FUNC(8, uint64_t)
  773 
  774 #include <machine/bus_dma.h>
  775 
  776 /*
  777  * Get the physical address of a bus space memory-mapped resource.
  778  * Doing this as a macro is a temporary solution until a more robust fix is
  779  * designed.  It also serves to mark the locations needing that fix.
  780  */
  781 #define BUS_SPACE_PHYSADDR(res, offs) \
  782         ((u_int)(rman_get_start(res)+(offs)))
  783 
  784 #endif /* _MACHINE_BUS_H_ */

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