1 /* $NetBSD: be_bus.c,v 1.18 2023/01/06 10:28:27 tsutsui Exp $ */
2
3 /*-
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Leo Weppelman.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: be_bus.c,v 1.18 2023/01/06 10:28:27 tsutsui Exp $");
34
35 #include <sys/types.h>
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/kmem.h>
39 #include <machine/cpu.h>
40 #include <sys/bus.h>
41
42 /*
43 * This file contains the common functions for using a big endian (linear)
44 * bus on a big endian atari.
45 */
46
47 /* Autoconf detection stuff */
48 static int beb_bus_space_peek_1(bus_space_tag_t,
49 bus_space_handle_t, bus_size_t);
50 static int beb_bus_space_peek_2(bus_space_tag_t,
51 bus_space_handle_t, bus_size_t);
52 static int beb_bus_space_peek_4(bus_space_tag_t,
53 bus_space_handle_t, bus_size_t);
54 static int beb_bus_space_peek_8(bus_space_tag_t,
55 bus_space_handle_t, bus_size_t);
56
57 /* read (single) */
58 static uint8_t beb_bus_space_read_1(bus_space_tag_t,
59 bus_space_handle_t, bus_size_t);
60 static uint16_t beb_bus_space_read_2(bus_space_tag_t,
61 bus_space_handle_t, bus_size_t);
62 static uint32_t beb_bus_space_read_4(bus_space_tag_t,
63 bus_space_handle_t, bus_size_t);
64 static uint64_t beb_bus_space_read_8(bus_space_tag_t,
65 bus_space_handle_t, bus_size_t);
66
67 /* write (single) */
68 static void beb_bus_space_write_1(bus_space_tag_t,
69 bus_space_handle_t, bus_size_t, uint8_t);
70 static void beb_bus_space_write_2(bus_space_tag_t,
71 bus_space_handle_t, bus_size_t, uint16_t);
72 static void beb_bus_space_write_4(bus_space_tag_t,
73 bus_space_handle_t, bus_size_t, uint32_t);
74 static void beb_bus_space_write_8(bus_space_tag_t,
75 bus_space_handle_t, bus_size_t, uint64_t);
76
77 /* read multiple */
78 static void beb_bus_space_read_multi_1(bus_space_tag_t,
79 bus_space_handle_t, bus_size_t, uint8_t *,
80 bus_size_t);
81 static void beb_bus_space_read_multi_2(bus_space_tag_t,
82 bus_space_handle_t, bus_size_t, uint16_t *,
83 bus_size_t);
84 static void beb_bus_space_read_multi_4(bus_space_tag_t,
85 bus_space_handle_t, bus_size_t, uint32_t *,
86 bus_size_t);
87 static void beb_bus_space_read_multi_8(bus_space_tag_t,
88 bus_space_handle_t, bus_size_t, uint64_t *,
89 bus_size_t);
90
91 /* write multiple */
92 static void beb_bus_space_write_multi_1(bus_space_tag_t,
93 bus_space_handle_t, bus_size_t,
94 const uint8_t *, bus_size_t);
95 static void beb_bus_space_write_multi_2(bus_space_tag_t,
96 bus_space_handle_t, bus_size_t,
97 const uint16_t *, bus_size_t);
98 static void beb_bus_space_write_multi_4(bus_space_tag_t,
99 bus_space_handle_t, bus_size_t,
100 const uint32_t *, bus_size_t);
101 static void beb_bus_space_write_multi_8(bus_space_tag_t,
102 bus_space_handle_t, bus_size_t,
103 const uint64_t *, bus_size_t);
104
105 /* read region */
106 static void beb_bus_space_read_region_1(bus_space_tag_t,
107 bus_space_handle_t, bus_size_t, uint8_t *,
108 bus_size_t);
109 static void beb_bus_space_read_region_2(bus_space_tag_t,
110 bus_space_handle_t, bus_size_t, uint16_t *,
111 bus_size_t);
112 static void beb_bus_space_read_region_4(bus_space_tag_t,
113 bus_space_handle_t, bus_size_t, uint32_t *,
114 bus_size_t);
115 static void beb_bus_space_read_region_8(bus_space_tag_t,
116 bus_space_handle_t, bus_size_t, uint64_t *,
117 bus_size_t);
118
119 /* read region */
120 static void beb_bus_space_write_region_1(bus_space_tag_t,
121 bus_space_handle_t, bus_size_t,
122 const uint8_t *, bus_size_t);
123 static void beb_bus_space_write_region_2(bus_space_tag_t,
124 bus_space_handle_t, bus_size_t,
125 const uint16_t *, bus_size_t);
126 static void beb_bus_space_write_region_4(bus_space_tag_t,
127 bus_space_handle_t, bus_size_t,
128 const uint32_t *, bus_size_t);
129 static void beb_bus_space_write_region_8(bus_space_tag_t,
130 bus_space_handle_t, bus_size_t,
131 const uint64_t *, bus_size_t);
132
133 /* set multi */
134 static void beb_bus_space_set_multi_1(bus_space_tag_t,
135 bus_space_handle_t, bus_size_t, uint8_t,
136 bus_size_t);
137 static void beb_bus_space_set_multi_2(bus_space_tag_t,
138 bus_space_handle_t, bus_size_t, uint16_t,
139 bus_size_t);
140 static void beb_bus_space_set_multi_4(bus_space_tag_t,
141 bus_space_handle_t, bus_size_t, uint32_t,
142 bus_size_t);
143 static void beb_bus_space_set_multi_8(bus_space_tag_t,
144 bus_space_handle_t, bus_size_t, uint64_t,
145 bus_size_t);
146
147 /* set region */
148 static void beb_bus_space_set_region_1(bus_space_tag_t,
149 bus_space_handle_t, bus_size_t, uint8_t,
150 bus_size_t);
151 static void beb_bus_space_set_region_2(bus_space_tag_t,
152 bus_space_handle_t, bus_size_t, uint16_t,
153 bus_size_t);
154 static void beb_bus_space_set_region_4(bus_space_tag_t,
155 bus_space_handle_t, bus_size_t, uint32_t,
156 bus_size_t);
157 static void beb_bus_space_set_region_8(bus_space_tag_t,
158 bus_space_handle_t, bus_size_t, uint64_t,
159 bus_size_t);
160
161 /*
162 * Don't force a function call overhead on these primitives...
163 */
164 #define __read_1(h, o) *((volatile uint8_t *)((h) + (o)))
165 #define __read_2(h, o) *((volatile uint16_t *)((h) + (o)))
166 #define __read_4(h, o) *((volatile uint32_t *)((h) + (o)))
167 #define __read_8(h, o) *((volatile uint64_t *)((h) + (o)))
168
169 #define __write_1(h, o, v) *((volatile uint8_t *)((h) + (o))) = (v)
170 #define __write_2(h, o, v) *((volatile uint16_t *)((h) + (o))) = (v)
171 #define __write_4(h, o, v) *((volatile uint32_t *)((h) + (o))) = (v)
172 #define __write_8(h, o, v) *((volatile uint64_t *)((h) + (o))) = (v)
173
174 bus_space_tag_t
beb_alloc_bus_space_tag(bus_space_tag_t storage)175 beb_alloc_bus_space_tag(bus_space_tag_t storage)
176 {
177 bus_space_tag_t beb_t;
178
179 /*
180 * Allow the caller to specify storage space for the tag. This
181 * is used during console config (when kmem_alloc() can't be used).
182 */
183 if (storage != NULL)
184 beb_t = storage;
185 else {
186 beb_t = kmem_alloc(sizeof(*beb_t), KM_SLEEP);
187 }
188 memset(beb_t, 0, sizeof(*beb_t));
189
190 beb_t->abs_p_1 = beb_bus_space_peek_1;
191 beb_t->abs_p_2 = beb_bus_space_peek_2;
192 beb_t->abs_p_4 = beb_bus_space_peek_4;
193 beb_t->abs_p_8 = beb_bus_space_peek_8;
194 beb_t->abs_r_1 = beb_bus_space_read_1;
195 beb_t->abs_r_2 = beb_bus_space_read_2;
196 beb_t->abs_r_4 = beb_bus_space_read_4;
197 beb_t->abs_r_8 = beb_bus_space_read_8;
198 beb_t->abs_rs_1 = beb_bus_space_read_1;
199 beb_t->abs_rs_2 = beb_bus_space_read_2;
200 beb_t->abs_rs_4 = beb_bus_space_read_4;
201 beb_t->abs_rs_8 = beb_bus_space_read_8;
202 beb_t->abs_rm_1 = beb_bus_space_read_multi_1;
203 beb_t->abs_rm_2 = beb_bus_space_read_multi_2;
204 beb_t->abs_rm_4 = beb_bus_space_read_multi_4;
205 beb_t->abs_rm_8 = beb_bus_space_read_multi_8;
206 beb_t->abs_rms_1 = beb_bus_space_read_multi_1;
207 beb_t->abs_rms_2 = beb_bus_space_read_multi_2;
208 beb_t->abs_rms_4 = beb_bus_space_read_multi_4;
209 beb_t->abs_rms_8 = beb_bus_space_read_multi_8;
210 beb_t->abs_rr_1 = beb_bus_space_read_region_1;
211 beb_t->abs_rr_2 = beb_bus_space_read_region_2;
212 beb_t->abs_rr_4 = beb_bus_space_read_region_4;
213 beb_t->abs_rr_8 = beb_bus_space_read_region_8;
214 beb_t->abs_rrs_1 = beb_bus_space_read_region_1;
215 beb_t->abs_rrs_2 = beb_bus_space_read_region_2;
216 beb_t->abs_rrs_4 = beb_bus_space_read_region_4;
217 beb_t->abs_rrs_8 = beb_bus_space_read_region_8;
218 beb_t->abs_w_1 = beb_bus_space_write_1;
219 beb_t->abs_w_2 = beb_bus_space_write_2;
220 beb_t->abs_w_4 = beb_bus_space_write_4;
221 beb_t->abs_w_8 = beb_bus_space_write_8;
222 beb_t->abs_ws_1 = beb_bus_space_write_1;
223 beb_t->abs_ws_2 = beb_bus_space_write_2;
224 beb_t->abs_ws_4 = beb_bus_space_write_4;
225 beb_t->abs_ws_8 = beb_bus_space_write_8;
226 beb_t->abs_wm_1 = beb_bus_space_write_multi_1;
227 beb_t->abs_wm_2 = beb_bus_space_write_multi_2;
228 beb_t->abs_wm_4 = beb_bus_space_write_multi_4;
229 beb_t->abs_wm_8 = beb_bus_space_write_multi_8;
230 beb_t->abs_wms_1 = beb_bus_space_write_multi_1;
231 beb_t->abs_wms_2 = beb_bus_space_write_multi_2;
232 beb_t->abs_wms_4 = beb_bus_space_write_multi_4;
233 beb_t->abs_wms_8 = beb_bus_space_write_multi_8;
234 beb_t->abs_wr_1 = beb_bus_space_write_region_1;
235 beb_t->abs_wr_2 = beb_bus_space_write_region_2;
236 beb_t->abs_wr_4 = beb_bus_space_write_region_4;
237 beb_t->abs_wr_8 = beb_bus_space_write_region_8;
238 beb_t->abs_wrs_1 = beb_bus_space_write_region_1;
239 beb_t->abs_wrs_2 = beb_bus_space_write_region_2;
240 beb_t->abs_wrs_4 = beb_bus_space_write_region_4;
241 beb_t->abs_wrs_8 = beb_bus_space_write_region_8;
242 beb_t->abs_sm_1 = beb_bus_space_set_multi_1;
243 beb_t->abs_sm_2 = beb_bus_space_set_multi_2;
244 beb_t->abs_sm_4 = beb_bus_space_set_multi_4;
245 beb_t->abs_sm_8 = beb_bus_space_set_multi_8;
246 beb_t->abs_sr_1 = beb_bus_space_set_region_1;
247 beb_t->abs_sr_2 = beb_bus_space_set_region_2;
248 beb_t->abs_sr_4 = beb_bus_space_set_region_4;
249 beb_t->abs_sr_8 = beb_bus_space_set_region_8;
250
251 return beb_t;
252 }
253
254
255 /*
256 * The various access functions
257 */
258
259 /*
260 * int bus_space_peek_N(bus_space_tag_t tag,
261 * bus_space_handle_t sh, bus_size_t offset);
262 *
263 * Check if the address is suitable for reading N-byte quantities.
264 */
265 static int
beb_bus_space_peek_1(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o)266 beb_bus_space_peek_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
267 {
268
269 return !badbaddr((void *)(h + o), 1);
270 }
271
272 static int
beb_bus_space_peek_2(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o)273 beb_bus_space_peek_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
274 {
275
276 return !badbaddr((void *)(h + o), 2);
277 }
278
279 static int
beb_bus_space_peek_4(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o)280 beb_bus_space_peek_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
281 {
282
283 return !badbaddr((void *)(h + o), 4);
284 }
285
286 static int
beb_bus_space_peek_8(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o)287 beb_bus_space_peek_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
288 {
289
290 return !badbaddr((void *)(h + o), 8);
291 }
292
293 /*
294 * uintX_t bus_space_read_N(bus_space_tag_t tag,
295 * bus_space_handle_t bsh, bus_size_t offset);
296 *
297 * Return an 1, 2, 4, or 8 byte value read from the bus_space described
298 * by tag/handle at `offset'. The value is converted to host-endian.
299 */
300 static uint8_t
beb_bus_space_read_1(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o)301 beb_bus_space_read_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
302 {
303
304 return __read_1(h, o);
305 }
306
307 static uint16_t
beb_bus_space_read_2(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o)308 beb_bus_space_read_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
309 {
310
311 return __read_2(h, o);
312 }
313
314 static uint32_t
beb_bus_space_read_4(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o)315 beb_bus_space_read_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
316 {
317
318 return __read_4(h, o);
319 }
320
321 static uint64_t
beb_bus_space_read_8(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o)322 beb_bus_space_read_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
323 {
324
325 return __read_8(h, o);
326 }
327
328 /*
329 * uintX_t bus_space_write_N(bus_space_tag_t tag,
330 * bus_space_handle_t bsh, bus_size_t offset, uintX_t val);
331 *
332 * Write an 1, 2, 4, or 8 byte value to the bus_space described by tag/handle
333 * at `offset'. The value `val' is converted from host to bus endianness
334 * before being written.
335 */
336 static void
beb_bus_space_write_1(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint8_t v)337 beb_bus_space_write_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
338 uint8_t v)
339 {
340
341 __write_1(h, o, v);
342 }
343
344 static void
beb_bus_space_write_2(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint16_t v)345 beb_bus_space_write_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
346 uint16_t v)
347 {
348
349 __write_2(h, o, v);
350 }
351
352 static void
beb_bus_space_write_4(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint32_t v)353 beb_bus_space_write_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
354 uint32_t v)
355 {
356
357 __write_4(h, o, v);
358 }
359
360 static void
beb_bus_space_write_8(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint64_t v)361 beb_bus_space_write_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
362 uint64_t v)
363 {
364
365 __write_8(h, o, v);
366 }
367
368 /*
369 * void bus_space_read_multi_N(bus_space_tag_t tag,
370 * bus_space_handle_t bsh, bus_size_t offset, uintX_t *address,
371 * bus_size_t count);
372 *
373 * Read 'count' 1, 2, 4, or 8 byte values from the bus_space described by
374 * tag/handle at `offset' and store them in the address range starting at
375 * 'address'. The values are converted to CPU endian order before being
376 * being stored.
377 */
378 static void
beb_bus_space_read_multi_1(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint8_t * a,bus_size_t c)379 beb_bus_space_read_multi_1(bus_space_tag_t t, bus_space_handle_t h,
380 bus_size_t o, uint8_t *a, bus_size_t c)
381 {
382
383 for (; c; a++, c--)
384 *a = __read_1(h, o);
385 }
386
387 static void
beb_bus_space_read_multi_2(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint16_t * a,bus_size_t c)388 beb_bus_space_read_multi_2(bus_space_tag_t t, bus_space_handle_t h,
389 bus_size_t o, uint16_t *a, bus_size_t c)
390 {
391
392 for (; c; a++, c--)
393 *a = __read_2(h, o);
394 }
395
396 static void
beb_bus_space_read_multi_4(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint32_t * a,bus_size_t c)397 beb_bus_space_read_multi_4(bus_space_tag_t t, bus_space_handle_t h,
398 bus_size_t o, uint32_t *a, bus_size_t c)
399 {
400
401 for (; c; a++, c--)
402 *a = __read_4(h, o);
403 }
404
405 static void
beb_bus_space_read_multi_8(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint64_t * a,bus_size_t c)406 beb_bus_space_read_multi_8(bus_space_tag_t t, bus_space_handle_t h,
407 bus_size_t o, uint64_t *a, bus_size_t c)
408 {
409
410 for (; c; a++, c--)
411 *a = __read_8(h, o);
412 }
413
414 /*
415 * void bus_space_write_multi_N(bus_space_tag_t tag,
416 * bus_space_handle_t bsh, bus_size_t offset,
417 * const uintX_t *address, bus_size_t count);
418 *
419 * Write 'count' 1, 2, 4, or 8 byte values from the address range starting
420 * at 'address' to the bus_space described by tag/handle at `offset'.
421 * The values are converted to bus endian order before being written to
422 * the bus.
423 */
424 static void
beb_bus_space_write_multi_1(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,const uint8_t * a,bus_size_t c)425 beb_bus_space_write_multi_1(bus_space_tag_t t, bus_space_handle_t h,
426 bus_size_t o, const uint8_t *a, bus_size_t c)
427 {
428
429 for (; c; a++, c--)
430 __write_1(h, o, *a);
431 }
432
433 static void
beb_bus_space_write_multi_2(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,const uint16_t * a,bus_size_t c)434 beb_bus_space_write_multi_2(bus_space_tag_t t, bus_space_handle_t h,
435 bus_size_t o, const uint16_t *a, bus_size_t c)
436 {
437
438 for (; c; a++, c--)
439 __write_2(h, o, *a);
440 }
441
442 static void
beb_bus_space_write_multi_4(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,const uint32_t * a,bus_size_t c)443 beb_bus_space_write_multi_4(bus_space_tag_t t, bus_space_handle_t h,
444 bus_size_t o, const uint32_t *a, bus_size_t c)
445 {
446
447 for (; c; a++, c--)
448 __write_4(h, o, *a);
449 }
450
451 static void
beb_bus_space_write_multi_8(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,const uint64_t * a,bus_size_t c)452 beb_bus_space_write_multi_8(bus_space_tag_t t, bus_space_handle_t h,
453 bus_size_t o, const uint64_t *a, bus_size_t c)
454 {
455
456 for (; c; a++, c--)
457 __write_8(h, o, *a);
458 }
459
460 /*
461 * void bus_space_read_region_N(bus_space_tag_t tag,
462 * bus_space_handle_t bsh, bus_size_t offset,
463 * uintN_t *addr, bus_size_t count);
464 *
465 * Read `count' 1, 2, 4, or 8 byte quantities from bus space
466 * described by tag/handle and starting at `offset' and copy into
467 * buffer provided.
468 */
469 static void
beb_bus_space_read_region_1(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint8_t * a,bus_size_t c)470 beb_bus_space_read_region_1(bus_space_tag_t t, bus_space_handle_t h,
471 bus_size_t o, uint8_t *a, bus_size_t c)
472 {
473
474 for (; c; a++, o++, c--)
475 *a = __read_1(h, o);
476 }
477
478 static void
beb_bus_space_read_region_2(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint16_t * a,bus_size_t c)479 beb_bus_space_read_region_2(bus_space_tag_t t, bus_space_handle_t h,
480 bus_size_t o, uint16_t *a, bus_size_t c)
481 {
482
483 for (; c; a++, o += 2, c--)
484 *a = __read_2(h, o);
485 }
486
487 static void
beb_bus_space_read_region_4(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint32_t * a,bus_size_t c)488 beb_bus_space_read_region_4(bus_space_tag_t t, bus_space_handle_t h,
489 bus_size_t o, uint32_t *a, bus_size_t c)
490 {
491
492 for (; c; a++, o += 4, c--)
493 *a = __read_4(h, o);
494 }
495
496 static void
beb_bus_space_read_region_8(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint64_t * a,bus_size_t c)497 beb_bus_space_read_region_8(bus_space_tag_t t, bus_space_handle_t h,
498 bus_size_t o, uint64_t *a, bus_size_t c)
499 {
500
501 for (; c; a++, o += 8, c--)
502 *a = __read_8(h, o);
503 }
504
505 /*
506 * void bus_space_write_region_N(bus_space_tag_t tag,
507 * bus_space_handle_t bsh, bus_size_t offset,
508 * uintN_t *addr, bus_size_t count);
509 *
510 * Copy `count' 1, 2, 4, or 8 byte quantities from the buffer provided
511 * into the bus space described by tag/handle and starting at `offset'.
512 */
513 static void
beb_bus_space_write_region_1(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,const uint8_t * a,bus_size_t c)514 beb_bus_space_write_region_1(bus_space_tag_t t, bus_space_handle_t h,
515 bus_size_t o, const uint8_t *a, bus_size_t c)
516 {
517
518 for (; c; a++, o++, c--)
519 __write_1(h, o, *a);
520 }
521
522 static void
beb_bus_space_write_region_2(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,const uint16_t * a,bus_size_t c)523 beb_bus_space_write_region_2(bus_space_tag_t t, bus_space_handle_t h,
524 bus_size_t o, const uint16_t *a, bus_size_t c)
525 {
526
527 for (; c; a++, o += 2, c--)
528 __write_2(h, o, *a);
529 }
530
531 static void
beb_bus_space_write_region_4(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,const uint32_t * a,bus_size_t c)532 beb_bus_space_write_region_4(bus_space_tag_t t, bus_space_handle_t h,
533 bus_size_t o, const uint32_t *a, bus_size_t c)
534 {
535
536 for (; c; a++, o += 4, c--)
537 __write_4(h, o, *a);
538 }
539
540 static void
beb_bus_space_write_region_8(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,const uint64_t * a,bus_size_t c)541 beb_bus_space_write_region_8(bus_space_tag_t t, bus_space_handle_t h,
542 bus_size_t o, const uint64_t *a, bus_size_t c)
543 {
544
545 for (; c; a++, o += 8, c--)
546 __write_8(h, o, *a);
547 }
548
549 /*
550 * void bus_space_set_multi_N(bus_space_tag_t tag,
551 * bus_space_handle_t bsh, bus_size_t offset, uintN_t val,
552 * bus_size_t count);
553 *
554 * Write the 1, 2, 4, or 8 byte value `val' to bus space described
555 * by tag/handle/offset `count' times.
556 */
557
558 static void
beb_bus_space_set_multi_1(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint8_t v,bus_size_t c)559 beb_bus_space_set_multi_1(bus_space_tag_t t, bus_space_handle_t h,
560 bus_size_t o, uint8_t v, bus_size_t c)
561 {
562
563 for (; c; c--)
564 __write_1(h, o, v);
565 }
566
567 static void
beb_bus_space_set_multi_2(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint16_t v,bus_size_t c)568 beb_bus_space_set_multi_2(bus_space_tag_t t, bus_space_handle_t h,
569 bus_size_t o, uint16_t v, bus_size_t c)
570 {
571
572 for (; c; c--)
573 __write_2(h, o, v);
574 }
575
576 static void
beb_bus_space_set_multi_4(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint32_t v,bus_size_t c)577 beb_bus_space_set_multi_4(bus_space_tag_t t, bus_space_handle_t h,
578 bus_size_t o, uint32_t v, bus_size_t c)
579 {
580
581 for (; c; c--)
582 __write_4(h, o, v);
583 }
584
585 static void
beb_bus_space_set_multi_8(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint64_t v,bus_size_t c)586 beb_bus_space_set_multi_8(bus_space_tag_t t, bus_space_handle_t h,
587 bus_size_t o, uint64_t v, bus_size_t c)
588 {
589
590 for (; c; c--)
591 __write_8(h, o, v);
592 }
593
594 /*
595 * void bus_space_set_region_N(bus_space_tag_t tag,
596 * bus_space_handle_t bsh, bus_size_t offset, uintN_t val,
597 * bus_size_t count);
598 *
599 * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
600 * by tag/handle starting at `offset'.
601 */
602 static void
beb_bus_space_set_region_1(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint8_t v,bus_size_t c)603 beb_bus_space_set_region_1(bus_space_tag_t t, bus_space_handle_t h,
604 bus_size_t o, uint8_t v, bus_size_t c)
605 {
606
607 for (; c; o++, c--)
608 __write_1(h, o, v);
609 }
610
611 static void
beb_bus_space_set_region_2(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint16_t v,bus_size_t c)612 beb_bus_space_set_region_2(bus_space_tag_t t, bus_space_handle_t h,
613 bus_size_t o, uint16_t v, bus_size_t c)
614 {
615
616 for (; c; o += 2, c--)
617 __write_2(h, o, v);
618 }
619
620 static void
beb_bus_space_set_region_4(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint32_t v,bus_size_t c)621 beb_bus_space_set_region_4(bus_space_tag_t t, bus_space_handle_t h,
622 bus_size_t o, uint32_t v, bus_size_t c)
623 {
624
625 for (; c; o += 4, c--)
626 __write_4(h, o, v);
627 }
628
629 static void
beb_bus_space_set_region_8(bus_space_tag_t t,bus_space_handle_t h,bus_size_t o,uint64_t v,bus_size_t c)630 beb_bus_space_set_region_8(bus_space_tag_t t, bus_space_handle_t h,
631 bus_size_t o, uint64_t v, bus_size_t c)
632 {
633
634 for (; c; o += 8, c--)
635 __write_8(h, o, v);
636 }
637