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bus_funcs.h revision 1.12
      1 /*	$NetBSD: bus_funcs.h,v 1.12 2022/11/19 12:15:22 skrll 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  * Copyright (c) 1996 Charles M. Hannum.  All rights reserved.
     35  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
     36  *
     37  * Redistribution and use in source and binary forms, with or without
     38  * modification, are permitted provided that the following conditions
     39  * are met:
     40  * 1. Redistributions of source code must retain the above copyright
     41  *    notice, this list of conditions and the following disclaimer.
     42  * 2. Redistributions in binary form must reproduce the above copyright
     43  *    notice, this list of conditions and the following disclaimer in the
     44  *    documentation and/or other materials provided with the distribution.
     45  * 3. All advertising materials mentioning features or use of this software
     46  *    must display the following acknowledgement:
     47  *      This product includes software developed by Christopher G. Demetriou
     48  *	for the NetBSD Project.
     49  * 4. The name of the author may not be used to endorse or promote products
     50  *    derived from this software without specific prior written permission
     51  *
     52  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     53  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     54  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     55  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     56  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     57  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     58  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     59  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     60  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     61  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     62  */
     63 
     64 #ifndef _ARM_BUS_FUNCS_H_
     65 #define _ARM_BUS_FUNCS_H_
     66 
     67 #ifdef _KERNEL_OPT
     68 #include "opt_cputypes.h"
     69 #endif
     70 
     71 /*
     72  * Utility macros; INTERNAL USE ONLY.
     73  */
     74 #define	__bs_c(a,b)		__CONCAT(a,b)
     75 #define	__bs_opname(op,size)	__bs_c(__bs_c(__bs_c(bs_,op),_),size)
     76 
     77 #define	__bs_rs(sz, t, h, o)						\
     78 	(*(t)->__bs_opname(r,sz))((t)->bs_cookie, h, o)
     79 #define	__bs_ws(sz, t, h, o, v)						\
     80 	(*(t)->__bs_opname(w,sz))((t)->bs_cookie, h, o, v)
     81 #define	__bs_nonsingle(type, sz, t, h, o, a, c)				\
     82 	(*(t)->__bs_opname(type,sz))((t)->bs_cookie, h, o, a, c)
     83 #define	__bs_set(type, sz, t, h, o, v, c)				\
     84 	(*(t)->__bs_opname(type,sz))((t)->bs_cookie, h, o, v, c)
     85 #define	__bs_copy(sz, t, h1, o1, h2, o2, cnt)				\
     86 	(*(t)->__bs_opname(c,sz))((t)->bs_cookie, h1, o1, h2, o2, cnt)
     87 
     88 #ifdef __BUS_SPACE_HAS_STREAM_METHODS
     89 #define	__bs_opname_s(op,size)	__bs_c(__bs_c(__bs_c(__bs_c(bs_,op),_),size),_s)
     90 #define	__bs_rs_s(sz, t, h, o)						\
     91 	(*(t)->__bs_opname_s(r,sz))((t)->bs_cookie, h, o)
     92 #define	__bs_ws_s(sz, t, h, o, v)					\
     93 	(*(t)->__bs_opname_s(w,sz))((t)->bs_cookie, h, o, v)
     94 #define	__bs_nonsingle_s(type, sz, t, h, o, a, c)			\
     95 	(*(t)->__bs_opname_s(type,sz))((t)->bs_cookie, h, o, a, c)
     96 #define	__bs_set_s(type, sz, t, h, o, v, c)				\
     97 	(*(t)->__bs_opname_s(type,sz))((t)->bs_cookie, h, o, v, c)
     98 #define	__bs_copy_s(sz, t, h1, o1, h2, o2, cnt)				\
     99 	(*(t)->__bs_opname_s(c,sz))((t)->bs_cookie, h1, o1, h2, o2, cnt)
    100 #endif
    101 
    102 #ifdef __BUS_SPACE_HAS_PROBING_METHODS
    103 #define	__bs_pe(sz, t, h, o, v)						\
    104 	(*(t)->__bs_opname(pe,sz))((t)->bs_cookie, h, o, v)
    105 #define	__bs_po(sz, t, h, o, v)						\
    106 	(*(t)->__bs_opname(po,sz))((t)->bs_cookie, h, o, v)
    107 #endif
    108 
    109 /*
    110  * Mapping and unmapping operations.
    111  */
    112 #define	bus_space_map(t, a, s, c, hp)					\
    113 	(*(t)->bs_map)((t)->bs_cookie, (a), (s), (c), (hp))
    114 #define	bus_space_unmap(t, h, s)					\
    115 	(*(t)->bs_unmap)((t)->bs_cookie, (h), (s))
    116 #define	bus_space_subregion(t, h, o, s, hp)				\
    117 	(*(t)->bs_subregion)((t)->bs_cookie, (h), (o), (s), (hp))
    118 
    119 
    120 /*
    121  * Allocation and deallocation operations.
    122  */
    123 #define	bus_space_alloc(t, rs, re, s, a, b, c, ap, hp)			\
    124 	(*(t)->bs_alloc)((t)->bs_cookie, (rs), (re), (s), (a), (b),	\
    125 	    (c), (ap), (hp))
    126 #define	bus_space_free(t, h, s)						\
    127 	(*(t)->bs_free)((t)->bs_cookie, (h), (s))
    128 
    129 /*
    130  * Get kernel virtual address for ranges mapped BUS_SPACE_MAP_LINEAR.
    131  */
    132 #define	bus_space_vaddr(t, h)						\
    133 	(*(t)->bs_vaddr)((t)->bs_cookie, (h))
    134 
    135 /*
    136  * MMap bus space for a user application.
    137  */
    138 #define bus_space_mmap(t, a, o, p, f)					\
    139 	(*(t)->bs_mmap)((t)->bs_cookie, (a), (o), (p), (f))
    140 
    141 /*
    142  * Bus barrier operations.
    143  */
    144 #define	bus_space_barrier(t, h, o, l, f)				\
    145 	(*(t)->bs_barrier)((t)->bs_cookie, (h), (o), (l), (f))
    146 
    147 /*
    148  * Bus read (single) operations.
    149  */
    150 #define	bus_space_read_1(t, h, o)	__bs_rs(1,(t),(h),(o))
    151 #define	bus_space_read_2(t, h, o)	__bs_rs(2,(t),(h),(o))
    152 #define	bus_space_read_4(t, h, o)	__bs_rs(4,(t),(h),(o))
    153 #ifdef __HAVE_BUS_SPACE_8
    154 #define	bus_space_read_8(t, h, o)	__bs_rs(8,(t),(h),(o))
    155 #endif
    156 #ifdef __BUS_SPACE_HAS_STREAM_METHODS
    157 #define	bus_space_read_stream_1(t, h, o)	__bs_rs_s(1,(t),(h),(o))
    158 #define	bus_space_read_stream_2(t, h, o)	__bs_rs_s(2,(t),(h),(o))
    159 #define	bus_space_read_stream_4(t, h, o)	__bs_rs_s(4,(t),(h),(o))
    160 #ifdef __HAVE_BUS_SPACE_8
    161 #define	bus_space_read_stream_8(t, h, o)	__bs_rs_s(8,(t),(h),(o))
    162 #endif
    163 #endif
    164 
    165 
    166 /*
    167  * Bus read multiple operations.
    168  */
    169 #define	bus_space_read_multi_1(t, h, o, a, c)				\
    170 	__bs_nonsingle(rm,1,(t),(h),(o),(a),(c))
    171 #define	bus_space_read_multi_2(t, h, o, a, c)				\
    172 	__bs_nonsingle(rm,2,(t),(h),(o),(a),(c))
    173 #define	bus_space_read_multi_4(t, h, o, a, c)				\
    174 	__bs_nonsingle(rm,4,(t),(h),(o),(a),(c))
    175 #ifdef __HAVE_BUS_SPACE_8
    176 #define	bus_space_read_multi_8(t, h, o, a, c)				\
    177 	__bs_nonsingle(rm,8,(t),(h),(o),(a),(c))
    178 #endif
    179 #ifdef __BUS_SPACE_HAS_STREAM_METHODS
    180 #define	bus_space_read_multi_stream_1(t, h, o, a, c)			\
    181 	__bs_nonsingle_s(rm,1,(t),(h),(o),(a),(c))
    182 #define	bus_space_read_multi_stream_2(t, h, o, a, c)			\
    183 	__bs_nonsingle_s(rm,2,(t),(h),(o),(a),(c))
    184 #define	bus_space_read_multi_stream_4(t, h, o, a, c)			\
    185 	__bs_nonsingle_s(rm,4,(t),(h),(o),(a),(c))
    186 #ifdef __HAVE_BUS_SPACE_8
    187 #define	bus_space_read_multi_stream_8(t, h, o, a, c)			\
    188 	__bs_nonsingle_s(rm,8,(t),(h),(o),(a),(c))
    189 #endif
    190 #endif
    191 
    192 
    193 /*
    194  * Bus read region operations.
    195  */
    196 #define	bus_space_read_region_1(t, h, o, a, c)				\
    197 	__bs_nonsingle(rr,1,(t),(h),(o),(a),(c))
    198 #define	bus_space_read_region_2(t, h, o, a, c)				\
    199 	__bs_nonsingle(rr,2,(t),(h),(o),(a),(c))
    200 #define	bus_space_read_region_4(t, h, o, a, c)				\
    201 	__bs_nonsingle(rr,4,(t),(h),(o),(a),(c))
    202 #ifdef __HAVE_BUS_SPACE_8
    203 #define	bus_space_read_region_8(t, h, o, a, c)				\
    204 	__bs_nonsingle(rr,8,(t),(h),(o),(a),(c))
    205 #endif
    206 #ifdef __BUS_SPACE_HAS_STREAM_METHODS
    207 #define	bus_space_read_region_stream_1(t, h, o, a, c)			\
    208 	__bs_nonsingle_s(rr,1,(t),(h),(o),(a),(c))
    209 #define	bus_space_read_region_stream_2(t, h, o, a, c)			\
    210 	__bs_nonsingle_s(rr,2,(t),(h),(o),(a),(c))
    211 #define	bus_space_read_region_stream_4(t, h, o, a, c)			\
    212 	__bs_nonsingle_s(rr,4,(t),(h),(o),(a),(c))
    213 #ifdef __HAVE_BUS_SPACE_8
    214 #define	bus_space_read_region_stream_8(t, h, o, a, c)			\
    215 	__bs_nonsingle_s(rr,8,(t),(h),(o),(a),(c))
    216 #endif
    217 #endif
    218 
    219 
    220 /*
    221  * Bus write (single) operations.
    222  */
    223 #define	bus_space_write_1(t, h, o, v)	__bs_ws(1,(t),(h),(o),(v))
    224 #define	bus_space_write_2(t, h, o, v)	__bs_ws(2,(t),(h),(o),(v))
    225 #define	bus_space_write_4(t, h, o, v)	__bs_ws(4,(t),(h),(o),(v))
    226 #ifdef __HAVE_BUS_SPACE_8
    227 #define	bus_space_write_8(t, h, o, v)	__bs_ws(8,(t),(h),(o),(v))
    228 #endif
    229 #ifdef __BUS_SPACE_HAS_STREAM_METHODS
    230 #define	bus_space_write_stream_1(t, h, o, v)	__bs_ws_s(1,(t),(h),(o),(v))
    231 #define	bus_space_write_stream_2(t, h, o, v)	__bs_ws_s(2,(t),(h),(o),(v))
    232 #define	bus_space_write_stream_4(t, h, o, v)	__bs_ws_s(4,(t),(h),(o),(v))
    233 #ifdef __HAVE_BUS_SPACE_8
    234 #define	bus_space_write_stream_8(t, h, o, v)	__bs_ws_s(8,(t),(h),(o),(v))
    235 #endif
    236 #endif
    237 
    238 
    239 /*
    240  * Bus write multiple operations.
    241  */
    242 #define	bus_space_write_multi_1(t, h, o, a, c)				\
    243 	__bs_nonsingle(wm,1,(t),(h),(o),(a),(c))
    244 #define	bus_space_write_multi_2(t, h, o, a, c)				\
    245 	__bs_nonsingle(wm,2,(t),(h),(o),(a),(c))
    246 #define	bus_space_write_multi_4(t, h, o, a, c)				\
    247 	__bs_nonsingle(wm,4,(t),(h),(o),(a),(c))
    248 #ifdef __HAVE_BUS_SPACE_8
    249 #define	bus_space_write_multi_8(t, h, o, a, c)				\
    250 	__bs_nonsingle(wm,8,(t),(h),(o),(a),(c))
    251 #endif
    252 #ifdef __BUS_SPACE_HAS_STREAM_METHODS
    253 #define	bus_space_write_multi_stream_1(t, h, o, a, c)			\
    254 	__bs_nonsingle_s(wm,1,(t),(h),(o),(a),(c))
    255 #define	bus_space_write_multi_stream_2(t, h, o, a, c)			\
    256 	__bs_nonsingle_s(wm,2,(t),(h),(o),(a),(c))
    257 #define	bus_space_write_multi_stream_4(t, h, o, a, c)			\
    258 	__bs_nonsingle_s(wm,4,(t),(h),(o),(a),(c))
    259 #ifdef __HAVE_BUS_SPACE_8
    260 #define	bus_space_write_multi_stream_8(t, h, o, a, c)			\
    261 	__bs_nonsingle_s(wm,8,(t),(h),(o),(a),(c))
    262 #endif
    263 #endif
    264 
    265 
    266 /*
    267  * Bus write region operations.
    268  */
    269 #define	bus_space_write_region_1(t, h, o, a, c)				\
    270 	__bs_nonsingle(wr,1,(t),(h),(o),(a),(c))
    271 #define	bus_space_write_region_2(t, h, o, a, c)				\
    272 	__bs_nonsingle(wr,2,(t),(h),(o),(a),(c))
    273 #define	bus_space_write_region_4(t, h, o, a, c)				\
    274 	__bs_nonsingle(wr,4,(t),(h),(o),(a),(c))
    275 #ifdef __HAVE_BUS_SPACE_8
    276 #define	bus_space_write_region_8(t, h, o, a, c)				\
    277 	__bs_nonsingle(wr,8,(t),(h),(o),(a),(c))
    278 #endif
    279 #ifdef __BUS_SPACE_HAS_STREAM_METHODS
    280 #define	bus_space_write_region_stream_1(t, h, o, a, c)			\
    281 	__bs_nonsingle_s(wr,1,(t),(h),(o),(a),(c))
    282 #define	bus_space_write_region_stream_2(t, h, o, a, c)			\
    283 	__bs_nonsingle_s(wr,2,(t),(h),(o),(a),(c))
    284 #define	bus_space_write_region_stream_4(t, h, o, a, c)			\
    285 	__bs_nonsingle_s(wr,4,(t),(h),(o),(a),(c))
    286 #ifdef __HAVE_BUS_SPACE_8
    287 #define	bus_space_write_region_stream_8(t, h, o, a, c)			\
    288 	__bs_nonsingle_s(wr,8,(t),(h),(o),(a),(c))
    289 #endif
    290 #endif
    291 
    292 
    293 /*
    294  * Set multiple operations.
    295  */
    296 #define	bus_space_set_multi_1(t, h, o, v, c)				\
    297 	__bs_set(sm,1,(t),(h),(o),(v),(c))
    298 #define	bus_space_set_multi_2(t, h, o, v, c)				\
    299 	__bs_set(sm,2,(t),(h),(o),(v),(c))
    300 #define	bus_space_set_multi_4(t, h, o, v, c)				\
    301 	__bs_set(sm,4,(t),(h),(o),(v),(c))
    302 #ifdef __HAVE_BUS_SPACE_8
    303 #define	bus_space_set_multi_8(t, h, o, v, c)				\
    304 	__bs_set(sm,8,(t),(h),(o),(v),(c))
    305 #endif
    306 
    307 /*
    308  * Set region operations.
    309  */
    310 #define	bus_space_set_region_1(t, h, o, v, c)				\
    311 	__bs_set(sr,1,(t),(h),(o),(v),(c))
    312 #define	bus_space_set_region_2(t, h, o, v, c)				\
    313 	__bs_set(sr,2,(t),(h),(o),(v),(c))
    314 #define	bus_space_set_region_4(t, h, o, v, c)				\
    315 	__bs_set(sr,4,(t),(h),(o),(v),(c))
    316 #ifdef __HAVE_BUS_SPACE_8
    317 #define	bus_space_set_region_8(t, h, o, v, c)				\
    318 	__bs_set(sr,8,(t),(h),(o),(v),(c))
    319 #endif
    320 
    321 /*
    322  * Copy operations.
    323  */
    324 #define	bus_space_copy_region_1(t, h1, o1, h2, o2, c)				\
    325 	__bs_copy(1, t, h1, o1, h2, o2, c)
    326 #define	bus_space_copy_region_2(t, h1, o1, h2, o2, c)				\
    327 	__bs_copy(2, t, h1, o1, h2, o2, c)
    328 #define	bus_space_copy_region_4(t, h1, o1, h2, o2, c)				\
    329 	__bs_copy(4, t, h1, o1, h2, o2, c)
    330 #ifdef __HAVE_BUS_SPACE_8
    331 #define	bus_space_copy_region_8(t, h1, o1, h2, o2, c)				\
    332 	__bs_copy(8, t, h1, o1, h2, o2, c)
    333 #endif
    334 
    335 /*
    336  * Probing operations.
    337  */
    338 #ifdef __BUS_SPACE_HAS_PROBING_METHODS
    339 #define	bus_space_peek_1(t, h, o, p)	__bs_pe(1,(t),(h),(o),(p))
    340 #define	bus_space_peek_2(t, h, o, p)	__bs_pe(2,(t),(h),(o),(p))
    341 #define	bus_space_peek_4(t, h, o, p)	__bs_pe(4,(t),(h),(o),(p))
    342 #ifdef __HAVE_BUS_SPACE_8
    343 #define	bus_space_peek_8(t, h, o, p)	__bs_pe(8,(t),(h),(o),(p))
    344 #endif
    345 
    346 #define	bus_space_poke_1(t, h, o, v)	__bs_po(1,(t),(h),(o),(v))
    347 #define	bus_space_poke_2(t, h, o, v)	__bs_po(2,(t),(h),(o),(v))
    348 #define	bus_space_poke_4(t, h, o, v)	__bs_po(4,(t),(h),(o),(v))
    349 #ifdef __HAVE_BUS_SPACE_8
    350 #define	bus_space_poke_8(t, h, o, v)	__bs_po(8,(t),(h),(o),(v))
    351 #endif
    352 #endif
    353 
    354 /*
    355  * Macros to provide prototypes for all the functions used in the
    356  * bus_space structure
    357  */
    358 
    359 #define bs_map_proto(f)							\
    360 int	__bs_c(f,_bs_map)(void *t, bus_addr_t addr,		\
    361 	    bus_size_t size, int cacheable, bus_space_handle_t *bshp);
    362 
    363 #define bs_unmap_proto(f)						\
    364 void	__bs_c(f,_bs_unmap)(void *t, bus_space_handle_t bsh,	\
    365 	    bus_size_t size);
    366 
    367 #define bs_subregion_proto(f)						\
    368 int	__bs_c(f,_bs_subregion)(void *t, bus_space_handle_t bsh,	\
    369 	    bus_size_t offset, bus_size_t size, 			\
    370 	    bus_space_handle_t *nbshp);
    371 
    372 #define bs_alloc_proto(f)						\
    373 int	__bs_c(f,_bs_alloc)(void *t, bus_addr_t rstart,		\
    374 	    bus_addr_t rend, bus_size_t size, bus_size_t align,		\
    375 	    bus_size_t boundary, int cacheable, bus_addr_t *addrp,	\
    376 	    bus_space_handle_t *bshp);
    377 
    378 #define bs_free_proto(f)						\
    379 void	__bs_c(f,_bs_free)(void *t, bus_space_handle_t bsh,	\
    380 	    bus_size_t size);
    381 
    382 #define bs_vaddr_proto(f)						\
    383 void *	__bs_c(f,_bs_vaddr)(void *t, bus_space_handle_t bsh);
    384 
    385 #define bs_mmap_proto(f)						\
    386 paddr_t	__bs_c(f,_bs_mmap)(void *, bus_addr_t, off_t, int, int);
    387 
    388 #define bs_barrier_proto(f)						\
    389 void	__bs_c(f,_bs_barrier)(void *t, bus_space_handle_t bsh,	\
    390 	    bus_size_t offset, bus_size_t len, int flags);
    391 
    392 #define	bs_r_1_proto(f)							\
    393 uint8_t	__bs_c(f,_bs_r_1)(void *t, bus_space_handle_t bsh,	\
    394 		    bus_size_t offset);
    395 
    396 #define	bs_r_2_proto(f)							\
    397 uint16_t	__bs_c(f,_bs_r_2)(void *t, bus_space_handle_t bsh,	\
    398 		    bus_size_t offset);					\
    399 uint16_t	__bs_c(f,_bs_r_2_swap)(void *t, bus_space_handle_t bsh,	\
    400 		    bus_size_t offset);
    401 
    402 #define	bs_r_4_proto(f)							\
    403 uint32_t	__bs_c(f,_bs_r_4)(void *t, bus_space_handle_t bsh,	\
    404 		    bus_size_t offset);					\
    405 uint32_t	__bs_c(f,_bs_r_4_swap)(void *t, bus_space_handle_t bsh,	\
    406 		    bus_size_t offset);
    407 
    408 #define	bs_r_8_proto(f)							\
    409 uint64_t	__bs_c(f,_bs_r_8)(void *t, bus_space_handle_t bsh,	\
    410 		    bus_size_t offset);					\
    411 uint64_t	__bs_c(f,_bs_r_8_swap)(void *t, bus_space_handle_t bsh,	\
    412 		    bus_size_t offset);
    413 
    414 #define	bs_w_1_proto(f)							\
    415 void	__bs_c(f,_bs_w_1)(void *t, bus_space_handle_t bsh,		\
    416 	    bus_size_t offset, uint8_t value);
    417 
    418 #define	bs_w_2_proto(f)							\
    419 void	__bs_c(f,_bs_w_2)(void *t, bus_space_handle_t bsh,		\
    420 	    bus_size_t offset, uint16_t value);				\
    421 void	__bs_c(f,_bs_w_2_swap)(void *t, bus_space_handle_t bsh,		\
    422 	    bus_size_t offset, uint16_t value);
    423 
    424 #define	bs_w_4_proto(f)							\
    425 void	__bs_c(f,_bs_w_4)(void *t, bus_space_handle_t bsh,		\
    426 	    bus_size_t offset, uint32_t value);				\
    427 void	__bs_c(f,_bs_w_4_swap)(void *t, bus_space_handle_t bsh,		\
    428 	    bus_size_t offset, uint32_t value);
    429 
    430 #define	bs_w_8_proto(f)							\
    431 void	__bs_c(f,_bs_w_8)(void *t, bus_space_handle_t bsh,		\
    432 	    bus_size_t offset, uint64_t value);				\
    433 void	__bs_c(f,_bs_w_8_swap)(void *t, bus_space_handle_t bsh,		\
    434 	    bus_size_t offset, uint64_t value);
    435 
    436 #define	bs_rm_1_proto(f)						\
    437 void	__bs_c(f,_bs_rm_1)(void *t, bus_space_handle_t bsh,		\
    438 	    bus_size_t offset, uint8_t *addr, bus_size_t count);
    439 
    440 #define	bs_rm_2_proto(f)						\
    441 void	__bs_c(f,_bs_rm_2)(void *t, bus_space_handle_t bsh,		\
    442 	    bus_size_t offset, uint16_t *addr, bus_size_t count);	\
    443 void	__bs_c(f,_bs_rm_2_swap)(void *t, bus_space_handle_t bsh,	\
    444 	    bus_size_t offset, uint16_t *addr, bus_size_t count);
    445 
    446 #define	bs_rm_4_proto(f)						\
    447 void	__bs_c(f,_bs_rm_4)(void *t, bus_space_handle_t bsh,		\
    448 	    bus_size_t offset, uint32_t *addr, bus_size_t count);	\
    449 void	__bs_c(f,_bs_rm_4_swap)(void *t, bus_space_handle_t bsh,	\
    450 	    bus_size_t offset, uint32_t *addr, bus_size_t count);
    451 
    452 #define	bs_rm_8_proto(f)						\
    453 void	__bs_c(f,_bs_rm_8)(void *t, bus_space_handle_t bsh,		\
    454 	    bus_size_t offset, uint64_t *addr, bus_size_t count);	\
    455 void	__bs_c(f,_bs_rm_8_swap)(void *t, bus_space_handle_t bsh,	\
    456 	    bus_size_t offset, uint64_t *addr, bus_size_t count);
    457 
    458 #define	bs_wm_1_proto(f)						\
    459 void	__bs_c(f,_bs_wm_1)(void *t, bus_space_handle_t bsh,		\
    460 	    bus_size_t offset, const uint8_t *addr, bus_size_t count);	\
    461 
    462 #define	bs_wm_2_proto(f)						\
    463 void	__bs_c(f,_bs_wm_2)(void *t, bus_space_handle_t bsh,		\
    464 	    bus_size_t offset, const uint16_t *addr, bus_size_t count);	\
    465 void	__bs_c(f,_bs_wm_2_swap)(void *t, bus_space_handle_t bsh,	\
    466 	    bus_size_t offset, const uint16_t *addr, bus_size_t count);
    467 
    468 #define	bs_wm_4_proto(f)						\
    469 void	__bs_c(f,_bs_wm_4)(void *t, bus_space_handle_t bsh,		\
    470 	    bus_size_t offset, const uint32_t *addr, bus_size_t count);	\
    471 void	__bs_c(f,_bs_wm_4_swap)(void *t, bus_space_handle_t bsh,	\
    472 	    bus_size_t offset, const uint32_t *addr, bus_size_t count);
    473 
    474 #define	bs_wm_8_proto(f)						\
    475 void	__bs_c(f,_bs_wm_8)(void *t, bus_space_handle_t bsh,		\
    476 	    bus_size_t offset, const uint64_t *addr, bus_size_t count);	\
    477 void	__bs_c(f,_bs_wm_8_swap)(void *t, bus_space_handle_t bsh,	\
    478 	    bus_size_t offset, const uint64_t *addr, bus_size_t count);
    479 
    480 #define	bs_rr_1_proto(f)						\
    481 void	__bs_c(f, _bs_rr_1)(void *t, bus_space_handle_t bsh,		\
    482 	    bus_size_t offset, uint8_t *addr, bus_size_t count);
    483 
    484 #define	bs_rr_2_proto(f)						\
    485 void	__bs_c(f, _bs_rr_2)(void *t, bus_space_handle_t bsh,		\
    486 	    bus_size_t offset, uint16_t *addr, bus_size_t count);	\
    487 void	__bs_c(f, _bs_rr_2_swap)(void *t, bus_space_handle_t bsh,	\
    488 	    bus_size_t offset, uint16_t *addr, bus_size_t count);
    489 
    490 #define	bs_rr_4_proto(f)						\
    491 void	__bs_c(f, _bs_rr_4)(void *t, bus_space_handle_t bsh,		\
    492 	    bus_size_t offset, uint32_t *addr, bus_size_t count);	\
    493 void	__bs_c(f, _bs_rr_4_swap)(void *t, bus_space_handle_t bsh,	\
    494 	    bus_size_t offset, uint32_t *addr, bus_size_t count);
    495 
    496 #define	bs_rr_8_proto(f)						\
    497 void	__bs_c(f, _bs_rr_8)(void *t, bus_space_handle_t bsh,		\
    498 	    bus_size_t offset, uint64_t *addr, bus_size_t count);	\
    499 void	__bs_c(f, _bs_rr_8_swap)(void *t, bus_space_handle_t bsh,	\
    500 	    bus_size_t offset, uint64_t *addr, bus_size_t count);
    501 
    502 #define	bs_wr_1_proto(f)						\
    503 void	__bs_c(f, _bs_wr_1)(void *t, bus_space_handle_t bsh,		\
    504 	    bus_size_t offset, const uint8_t *addr, bus_size_t count);
    505 
    506 #define	bs_wr_2_proto(f)						\
    507 void	__bs_c(f, _bs_wr_2)(void *t, bus_space_handle_t bsh,		\
    508 	    bus_size_t offset, const uint16_t *addr, bus_size_t count);	\
    509 void	__bs_c(f, _bs_wr_2_swap)(void *t, bus_space_handle_t bsh,	\
    510 	    bus_size_t offset, const uint16_t *addr, bus_size_t count);
    511 
    512 #define	bs_wr_4_proto(f)						\
    513 void	__bs_c(f, _bs_wr_4)(void *t, bus_space_handle_t bsh,		\
    514 	    bus_size_t offset, const uint32_t *addr, bus_size_t count);	\
    515 void	__bs_c(f, _bs_wr_4_swap)(void *t, bus_space_handle_t bsh,	\
    516 	    bus_size_t offset, const uint32_t *addr, bus_size_t count);
    517 
    518 #define	bs_wr_8_proto(f)						\
    519 void	__bs_c(f, _bs_wr_8)(void *t, bus_space_handle_t bsh,		\
    520 	    bus_size_t offset, const uint64_t *addr, bus_size_t count);	\
    521 void	__bs_c(f, _bs_wr_8_swap)(void *t, bus_space_handle_t bsh,	\
    522 	    bus_size_t offset, const uint64_t *addr, bus_size_t count);
    523 
    524 #define	bs_sm_1_proto(f)						\
    525 void	__bs_c(f,_bs_sm_1)(void *t, bus_space_handle_t bsh,		\
    526 	    bus_size_t offset, uint8_t value, bus_size_t count);
    527 
    528 #define	bs_sm_2_proto(f)						\
    529 void	__bs_c(f,_bs_sm_2)(void *t, bus_space_handle_t bsh,		\
    530 	    bus_size_t offset, uint16_t value, bus_size_t count);	\
    531 void	__bs_c(f,_bs_sm_2_swap)(void *t, bus_space_handle_t bsh,		\
    532 	    bus_size_t offset, uint16_t value, bus_size_t count);
    533 
    534 #define	bs_sm_4_proto(f)						\
    535 void	__bs_c(f,_bs_sm_4)(void *t, bus_space_handle_t bsh,		\
    536 	    bus_size_t offset, uint32_t value, bus_size_t count);	\
    537 void	__bs_c(f,_bs_sm_4_swap)(void *t, bus_space_handle_t bsh,	\
    538 	    bus_size_t offset, uint32_t value, bus_size_t count);
    539 
    540 #define	bs_sm_8_proto(f)						\
    541 void	__bs_c(f,_bs_sm_8)(void *t, bus_space_handle_t bsh,		\
    542 	    bus_size_t offset, uint64_t value, bus_size_t count);	\
    543 void	__bs_c(f,_bs_sm_8_swap)(void *t, bus_space_handle_t bsh,	\
    544 	    bus_size_t offset, uint64_t value, bus_size_t count);
    545 
    546 #define	bs_sr_1_proto(f)						\
    547 void	__bs_c(f,_bs_sr_1)(void *t, bus_space_handle_t bsh,		\
    548 	    bus_size_t offset, uint8_t value, bus_size_t count);
    549 
    550 #define	bs_sr_2_proto(f)						\
    551 void	__bs_c(f,_bs_sr_2)(void *t, bus_space_handle_t bsh,		\
    552 	    bus_size_t offset, uint16_t value, bus_size_t count);	\
    553 void	__bs_c(f,_bs_sr_2_swap)(void *t, bus_space_handle_t bsh,	\
    554 	    bus_size_t offset, uint16_t value, bus_size_t count);
    555 
    556 #define	bs_sr_4_proto(f)						\
    557 void	__bs_c(f,_bs_sr_4)(void *t, bus_space_handle_t bsh,		\
    558 	    bus_size_t offset, uint32_t value, bus_size_t count);	\
    559 void	__bs_c(f,_bs_sr_4_swap)(void *t, bus_space_handle_t bsh,	\
    560 	    bus_size_t offset, uint32_t value, bus_size_t count);
    561 
    562 #define	bs_sr_8_proto(f)						\
    563 void	__bs_c(f,_bs_sr_8)(void *t, bus_space_handle_t bsh,		\
    564 	    bus_size_t offset, uint64_t value, bus_size_t count);	\
    565 void	__bs_c(f,_bs_sr_8_swap)(void *t, bus_space_handle_t bsh,	\
    566 	    bus_size_t offset, uint64_t value, bus_size_t count);
    567 
    568 #define	bs_c_1_proto(f)							\
    569 void	__bs_c(f,_bs_c_1)(void *t, bus_space_handle_t bsh1,		\
    570 	    bus_size_t offset1, bus_space_handle_t bsh2,		\
    571 	    bus_size_t offset2, bus_size_t count);
    572 
    573 #define	bs_c_2_proto(f)							\
    574 void	__bs_c(f,_bs_c_2)(void *t, bus_space_handle_t bsh1,		\
    575 	    bus_size_t offset1, bus_space_handle_t bsh2,		\
    576 	    bus_size_t offset2, bus_size_t count);
    577 
    578 #define	bs_c_4_proto(f)							\
    579 void	__bs_c(f,_bs_c_4)(void *t, bus_space_handle_t bsh1,		\
    580 	    bus_size_t offset1, bus_space_handle_t bsh2,		\
    581 	    bus_size_t offset2, bus_size_t count);
    582 
    583 #define	bs_c_8_proto(f)							\
    584 void	__bs_c(f,_bs_c_8)(void *t, bus_space_handle_t bsh1,		\
    585 	    bus_size_t offset1, bus_space_handle_t bsh2,		\
    586 	    bus_size_t offset2, bus_size_t count);
    587 
    588 #define	bs_pe_1_proto(f)						\
    589 int	__bs_c(f,_bs_pe_1)(void *t, bus_space_handle_t bsh,		\
    590 	    bus_size_t offset, uint8_t *datap);
    591 
    592 #define	bs_pe_2_proto(f)						\
    593 int	__bs_c(f,_bs_pe_2)(void *t, bus_space_handle_t bsh,		\
    594 	    bus_size_t offset, uint16_t *datap);			\
    595 
    596 #define	bs_pe_4_proto(f)						\
    597 int	__bs_c(f,_bs_pe_4)(void *t, bus_space_handle_t bsh,		\
    598 	    bus_size_t offset, uint32_t *datap);			\
    599 
    600 #define	bs_pe_8_proto(f)						\
    601 int	__bs_c(f,_bs_pe_8)(void *t, bus_space_handle_t bsh,		\
    602 	    bus_size_t offset, uint64_t *datap);			\
    603 
    604 #define	bs_po_1_proto(f)						\
    605 int	__bs_c(f,_bs_po_1)(void *t, bus_space_handle_t bsh,		\
    606 	    bus_size_t offset, uint8_t value);
    607 
    608 #define	bs_po_2_proto(f)						\
    609 int	__bs_c(f,_bs_po_2)(void *t, bus_space_handle_t bsh,		\
    610 	    bus_size_t offset, uint16_t value);				\
    611 
    612 #define	bs_po_4_proto(f)						\
    613 int	__bs_c(f,_bs_po_4)(void *t, bus_space_handle_t bsh,		\
    614 	    bus_size_t offset, uint32_t value);				\
    615 
    616 #define	bs_po_8_proto(f)						\
    617 int	__bs_c(f,_bs_po_8)(void *t, bus_space_handle_t bsh,		\
    618 	    bus_size_t offset, uint64_t value);				\
    619 
    620 
    621 #define bs_protos(f)		\
    622 bs_map_proto(f);		\
    623 bs_unmap_proto(f);		\
    624 bs_subregion_proto(f);		\
    625 bs_alloc_proto(f);		\
    626 bs_free_proto(f);		\
    627 bs_vaddr_proto(f);		\
    628 bs_mmap_proto(f);		\
    629 bs_barrier_proto(f);		\
    630 bs_r_1_proto(f);		\
    631 bs_r_2_proto(f);		\
    632 bs_r_4_proto(f);		\
    633 bs_r_8_proto(f);		\
    634 bs_w_1_proto(f);		\
    635 bs_w_2_proto(f);		\
    636 bs_w_4_proto(f);		\
    637 bs_w_8_proto(f);		\
    638 bs_rm_1_proto(f);		\
    639 bs_rm_2_proto(f);		\
    640 bs_rm_4_proto(f);		\
    641 bs_rm_8_proto(f);		\
    642 bs_wm_1_proto(f);		\
    643 bs_wm_2_proto(f);		\
    644 bs_wm_4_proto(f);		\
    645 bs_wm_8_proto(f);		\
    646 bs_rr_1_proto(f);		\
    647 bs_rr_2_proto(f);		\
    648 bs_rr_4_proto(f);		\
    649 bs_rr_8_proto(f);		\
    650 bs_wr_1_proto(f);		\
    651 bs_wr_2_proto(f);		\
    652 bs_wr_4_proto(f);		\
    653 bs_wr_8_proto(f);		\
    654 bs_sm_1_proto(f);		\
    655 bs_sm_2_proto(f);		\
    656 bs_sm_4_proto(f);		\
    657 bs_sm_8_proto(f);		\
    658 bs_sr_1_proto(f);		\
    659 bs_sr_2_proto(f);		\
    660 bs_sr_4_proto(f);		\
    661 bs_sr_8_proto(f);		\
    662 bs_c_1_proto(f);		\
    663 bs_c_2_proto(f);		\
    664 bs_c_4_proto(f);		\
    665 bs_c_8_proto(f);		\
    666 bs_pe_1_proto(f);		\
    667 bs_pe_2_proto(f);		\
    668 bs_pe_4_proto(f);		\
    669 bs_pe_8_proto(f);		\
    670 bs_po_1_proto(f);		\
    671 bs_po_2_proto(f);		\
    672 bs_po_4_proto(f);		\
    673 bs_po_8_proto(f);
    674 
    675 /* Bus Space DMA macros */
    676 
    677 /* Forwards needed by prototypes below. */
    678 struct mbuf;
    679 struct uio;
    680 
    681 int bus_dmamap_create(bus_dma_tag_t, bus_size_t, int, bus_size_t, bus_size_t,
    682     int, bus_dmamap_t *);
    683 void bus_dmamap_destroy(bus_dma_tag_t, bus_dmamap_t);
    684 int bus_dmamap_load(bus_dma_tag_t, bus_dmamap_t, void *, bus_size_t,
    685     struct proc *, int);
    686 int bus_dmamap_load_mbuf(bus_dma_tag_t, bus_dmamap_t, struct mbuf *, int);
    687 int bus_dmamap_load_uio(bus_dma_tag_t, bus_dmamap_t, struct uio *, int);
    688 int bus_dmamap_load_raw(bus_dma_tag_t, bus_dmamap_t, bus_dma_segment_t *,
    689     int, bus_size_t, int);
    690 void bus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t);
    691 void bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t, bus_size_t, int);
    692 
    693 #define	bus_dmamem_alloc(t, s, a, b, sg, n, r, f)		\
    694 	(*(t)->_dmamem_alloc)((t), (s), (a), (b), (sg), (n), (r), (f))
    695 #define	bus_dmamem_free(t, sg, n)				\
    696 	(*(t)->_dmamem_free)((t), (sg), (n))
    697 #define	bus_dmamem_map(t, sg, n, s, k, f)			\
    698 	(*(t)->_dmamem_map)((t), (sg), (n), (s), (k), (f))
    699 #define	bus_dmamem_unmap(t, k, s)				\
    700 	(*(t)->_dmamem_unmap)((t), (k), (s))
    701 #define	bus_dmamem_mmap(t, sg, n, o, p, f)			\
    702 	(*(t)->_dmamem_mmap)((t), (sg), (n), (o), (p), (f))
    703 
    704 #define	bus_dmatag_subregion(t, mna, mxa, nt, f)		\
    705 	(*(t)->_dmatag_subregion)((t), (mna), (mxa), (nt), (f))
    706 #define	bus_dmatag_destroy(t)					\
    707 	(*(t)->_dmatag_destroy)(t)
    708 
    709 #ifdef _ARM32_BUS_DMA_PRIVATE
    710 
    711 extern paddr_t physical_start, physical_end;
    712 
    713 int	arm32_dma_range_intersect(struct arm32_dma_range *, int,
    714 	    paddr_t pa, psize_t size, paddr_t *pap, psize_t *sizep);
    715 
    716 int	_bus_dmamap_create(bus_dma_tag_t, bus_size_t, int, bus_size_t,
    717 	    bus_size_t, int, bus_dmamap_t *);
    718 void	_bus_dmamap_destroy(bus_dma_tag_t, bus_dmamap_t);
    719 int	_bus_dmamap_load(bus_dma_tag_t, bus_dmamap_t, void *,
    720 	    bus_size_t, struct proc *, int);
    721 int	_bus_dmamap_load_mbuf(bus_dma_tag_t, bus_dmamap_t,
    722 	    struct mbuf *, int);
    723 int	_bus_dmamap_load_uio(bus_dma_tag_t, bus_dmamap_t,
    724 	    struct uio *, int);
    725 int	_bus_dmamap_load_raw(bus_dma_tag_t, bus_dmamap_t,
    726 	    bus_dma_segment_t *, int, bus_size_t, int);
    727 void	_bus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t);
    728 void	_bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t,
    729 	    bus_size_t, int);
    730 
    731 #if defined(_ARM32_NEED_BUS_DMA_BOUNCE) || defined(CPU_CORTEX)
    732 #define	_BUS_DMAMAP_SYNC_FUNCS \
    733 	._dmamap_sync_pre = _bus_dmamap_sync,	\
    734 	._dmamap_sync_post = _bus_dmamap_sync
    735 #else
    736 #define	_BUS_DMAMAP_SYNC_FUNCS \
    737 	._dmamap_sync_pre = _bus_dmamap_sync
    738 #endif
    739 
    740 #define	_BUS_DMAMAP_FUNCS \
    741 	._dmamap_create = _bus_dmamap_create,		\
    742 	._dmamap_destroy = _bus_dmamap_destroy,		\
    743 	._dmamap_load = _bus_dmamap_load,		\
    744 	._dmamap_load_mbuf = _bus_dmamap_load_mbuf,	\
    745 	._dmamap_load_raw = _bus_dmamap_load_raw,	\
    746 	._dmamap_load_uio = _bus_dmamap_load_uio,	\
    747 	._dmamap_unload = _bus_dmamap_unload,		\
    748 	_BUS_DMAMAP_SYNC_FUNCS
    749 
    750 int	_bus_dmamem_alloc(bus_dma_tag_t tag, bus_size_t size,
    751 	    bus_size_t alignment, bus_size_t boundary,
    752 	    bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags);
    753 void	_bus_dmamem_free(bus_dma_tag_t tag, bus_dma_segment_t *segs,
    754 	    int nsegs);
    755 int	_bus_dmamem_map(bus_dma_tag_t tag, bus_dma_segment_t *segs,
    756 	    int nsegs, size_t size, void **kvap, int flags);
    757 void	_bus_dmamem_unmap(bus_dma_tag_t tag, void *kva,
    758 	    size_t size);
    759 paddr_t	_bus_dmamem_mmap(bus_dma_tag_t tag, bus_dma_segment_t *segs,
    760 	    int nsegs, off_t off, int prot, int flags);
    761 
    762 #define	_BUS_DMAMEM_FUNCS \
    763 	._dmamem_alloc = _bus_dmamem_alloc,	\
    764 	._dmamem_free = _bus_dmamem_free,	\
    765 	._dmamem_map = _bus_dmamem_map,		\
    766 	._dmamem_unmap = _bus_dmamem_unmap,	\
    767 	._dmamem_mmap = _bus_dmamem_mmap
    768 
    769 int	_bus_dmamem_alloc_range(bus_dma_tag_t tag, bus_size_t size,
    770 	    bus_size_t alignment, bus_size_t boundary,
    771 	    bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags,
    772 	    paddr_t low, paddr_t high);
    773 
    774 int	_bus_dmatag_subregion(bus_dma_tag_t, bus_addr_t, bus_addr_t,
    775 	    bus_dma_tag_t *, int);
    776 void 	_bus_dmatag_destroy(bus_dma_tag_t);
    777 
    778 #define	_BUS_DMATAG_FUNCS \
    779 	._dmatag_subregion = _bus_dmatag_subregion,	\
    780 	._dmatag_destroy = _bus_dmatag_destroy
    781 
    782 #endif /* _ARM32_BUS_DMA_PRIVATE */
    783 
    784 #endif /* _ARM_BUS_FUNCS_H_ */
    785