1 /* $NetBSD: bus.h,v 1.12 1997/10/01 08:25:15 fvdl Exp $ */
2 /*-
3 * $Id: bus.h,v 1.6 2007/08/09 11:23:32 katta Exp $
4 *
5 * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
10 * NASA Ames Research Center.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 * must display the following acknowledgement:
22 * This product includes software developed by the NetBSD
23 * Foundation, Inc. and its contributors.
24 * 4. Neither the name of The NetBSD Foundation nor the names of its
25 * contributors may be used to endorse or promote products derived
26 * from this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38 * POSSIBILITY OF SUCH DAMAGE.
39 */
40
41 /*
42 * Copyright (c) 1996 Charles M. Hannum. All rights reserved.
43 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
44 *
45 * Redistribution and use in source and binary forms, with or without
46 * modification, are permitted provided that the following conditions
47 * are met:
48 * 1. Redistributions of source code must retain the above copyright
49 * notice, this list of conditions and the following disclaimer.
50 * 2. Redistributions in binary form must reproduce the above copyright
51 * notice, this list of conditions and the following disclaimer in the
52 * documentation and/or other materials provided with the distribution.
53 * 3. All advertising materials mentioning features or use of this software
54 * must display the following acknowledgement:
55 * This product includes software developed by Christopher G. Demetriou
56 * for the NetBSD Project.
57 * 4. The name of the author may not be used to endorse or promote products
58 * derived from this software without specific prior written permission
59 *
60 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
61 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
62 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
63 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
64 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
65 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
66 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
67 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
68 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
69 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
70 *
71 * from: src/sys/alpha/include/bus.h,v 1.5 1999/08/28 00:38:40 peter
72 * $FreeBSD: releng/10.0/sys/mips/cavium/octopci_bus_space.c 232410 2012-03-02 21:46:31Z jmallett $
73 */
74 #include <sys/cdefs.h>
75 __FBSDID("$FreeBSD: releng/10.0/sys/mips/cavium/octopci_bus_space.c 232410 2012-03-02 21:46:31Z jmallett $");
76
77 #include <sys/param.h>
78 #include <sys/systm.h>
79 #include <sys/bus.h>
80 #include <sys/kernel.h>
81 #include <sys/malloc.h>
82 #include <sys/ktr.h>
83 #include <sys/endian.h>
84
85 #include <vm/vm.h>
86 #include <vm/pmap.h>
87 #include <vm/vm_kern.h>
88 #include <vm/vm_extern.h>
89
90 #include <machine/bus.h>
91 #include <machine/cache.h>
92
93 #include <mips/cavium/octopcivar.h>
94
95 #include <contrib/octeon-sdk/cvmx.h>
96
97 static struct bus_space octopci_space = {
98 /* cookie */
99 (void *) 0,
100
101 /* mapping/unmapping */
102 octopci_bs_map,
103 octopci_bs_unmap,
104 octopci_bs_subregion,
105
106 /* allocation/deallocation */
107 NULL,
108 NULL,
109
110 /* barrier */
111 octopci_bs_barrier,
112
113 /* read (single) */
114 octopci_bs_r_1,
115 octopci_bs_r_2,
116 octopci_bs_r_4,
117 NULL,
118
119 /* read multiple */
120 octopci_bs_rm_1,
121 octopci_bs_rm_2,
122 octopci_bs_rm_4,
123 NULL,
124
125 /* read region */
126 octopci_bs_rr_1,
127 octopci_bs_rr_2,
128 octopci_bs_rr_4,
129 NULL,
130
131 /* write (single) */
132 octopci_bs_w_1,
133 octopci_bs_w_2,
134 octopci_bs_w_4,
135 NULL,
136
137 /* write multiple */
138 octopci_bs_wm_1,
139 octopci_bs_wm_2,
140 octopci_bs_wm_4,
141 NULL,
142
143 /* write region */
144 NULL,
145 octopci_bs_wr_2,
146 octopci_bs_wr_4,
147 NULL,
148
149 /* set multiple */
150 NULL,
151 NULL,
152 NULL,
153 NULL,
154
155 /* set region */
156 NULL,
157 octopci_bs_sr_2,
158 octopci_bs_sr_4,
159 NULL,
160
161 /* copy */
162 NULL,
163 octopci_bs_c_2,
164 NULL,
165 NULL,
166
167 /* read (single) stream */
168 octopci_bs_r_1,
169 octopci_bs_r_2,
170 octopci_bs_r_4,
171 NULL,
172
173 /* read multiple stream */
174 octopci_bs_rm_1,
175 octopci_bs_rm_2,
176 octopci_bs_rm_4,
177 NULL,
178
179 /* read region stream */
180 octopci_bs_rr_1,
181 octopci_bs_rr_2,
182 octopci_bs_rr_4,
183 NULL,
184
185 /* write (single) stream */
186 octopci_bs_w_1,
187 octopci_bs_w_2,
188 octopci_bs_w_4,
189 NULL,
190
191 /* write multiple stream */
192 octopci_bs_wm_1,
193 octopci_bs_wm_2,
194 octopci_bs_wm_4,
195 NULL,
196
197 /* write region stream */
198 NULL,
199 octopci_bs_wr_2,
200 octopci_bs_wr_4,
201 NULL,
202 };
203
204 #define rd8(a) cvmx_read64_uint8(a)
205 #define rd16(a) le16toh(cvmx_read64_uint16(a))
206 #define rd32(a) le32toh(cvmx_read64_uint32(a))
207 #define wr8(a, v) cvmx_write64_uint8(a, v)
208 #define wr16(a, v) cvmx_write64_uint16(a, htole16(v))
209 #define wr32(a, v) cvmx_write64_uint32(a, htole32(v))
210
211 /* octopci bus_space tag */
212 bus_space_tag_t octopci_bus_space = &octopci_space;
213
214 int
215 octopci_bs_map(void *t __unused, bus_addr_t addr,
216 bus_size_t size __unused, int flags __unused,
217 bus_space_handle_t *bshp)
218 {
219
220 *bshp = addr;
221 return (0);
222 }
223
224 void
225 octopci_bs_unmap(void *t __unused, bus_space_handle_t bh __unused,
226 bus_size_t size __unused)
227 {
228
229 /* Do nothing */
230 }
231
232 int
233 octopci_bs_subregion(void *t __unused, bus_space_handle_t handle,
234 bus_size_t offset, bus_size_t size __unused,
235 bus_space_handle_t *bshp)
236 {
237
238 *bshp = handle + offset;
239 return (0);
240 }
241
242 uint8_t
243 octopci_bs_r_1(void *t, bus_space_handle_t handle,
244 bus_size_t offset)
245 {
246
247 return (rd8(handle + offset));
248 }
249
250 uint16_t
251 octopci_bs_r_2(void *t, bus_space_handle_t handle,
252 bus_size_t offset)
253 {
254
255 return (rd16(handle + offset));
256 }
257
258 uint32_t
259 octopci_bs_r_4(void *t, bus_space_handle_t handle,
260 bus_size_t offset)
261 {
262
263 return (rd32(handle + offset));
264 }
265
266
267 void
268 octopci_bs_rm_1(void *t, bus_space_handle_t bsh,
269 bus_size_t offset, uint8_t *addr, size_t count)
270 {
271
272 while (count--)
273 *addr++ = rd8(bsh + offset);
274 }
275
276 void
277 octopci_bs_rm_2(void *t, bus_space_handle_t bsh,
278 bus_size_t offset, uint16_t *addr, size_t count)
279 {
280 bus_addr_t baddr = bsh + offset;
281
282 while (count--)
283 *addr++ = rd16(baddr);
284 }
285
286 void
287 octopci_bs_rm_4(void *t, bus_space_handle_t bsh,
288 bus_size_t offset, uint32_t *addr, size_t count)
289 {
290 bus_addr_t baddr = bsh + offset;
291
292 while (count--)
293 *addr++ = rd32(baddr);
294 }
295
296
297 /*
298 * Read `count' 1, 2, 4, or 8 byte quantities from bus space
299 * described by tag/handle and starting at `offset' and copy into
300 * buffer provided.
301 */
302 void
303 octopci_bs_rr_1(void *t, bus_space_handle_t bsh,
304 bus_size_t offset, uint8_t *addr, size_t count)
305 {
306 bus_addr_t baddr = bsh + offset;
307
308 while (count--) {
309 *addr++ = rd8(baddr);
310 baddr += 1;
311 }
312 }
313
314 void
315 octopci_bs_rr_2(void *t, bus_space_handle_t bsh,
316 bus_size_t offset, uint16_t *addr, size_t count)
317 {
318 bus_addr_t baddr = bsh + offset;
319
320 while (count--) {
321 *addr++ = rd16(baddr);
322 baddr += 2;
323 }
324 }
325
326 void
327 octopci_bs_rr_4(void *t, bus_space_handle_t bsh,
328 bus_size_t offset, uint32_t *addr, size_t count)
329 {
330 bus_addr_t baddr = bsh + offset;
331
332 while (count--) {
333 *addr++ = rd32(baddr);
334 baddr += 4;
335 }
336 }
337
338 /*
339 * Write the 1, 2, 4, or 8 byte value `value' to bus space
340 * described by tag/handle/offset.
341 */
342 void
343 octopci_bs_w_1(void *t, bus_space_handle_t bsh,
344 bus_size_t offset, uint8_t value)
345 {
346
347 wr8(bsh + offset, value);
348 }
349
350 void
351 octopci_bs_w_2(void *t, bus_space_handle_t bsh,
352 bus_size_t offset, uint16_t value)
353 {
354
355 wr16(bsh + offset, value);
356 }
357
358 void
359 octopci_bs_w_4(void *t, bus_space_handle_t bsh,
360 bus_size_t offset, uint32_t value)
361 {
362
363 wr32(bsh + offset, value);
364 }
365
366 /*
367 * Write `count' 1, 2, 4, or 8 byte quantities from the buffer
368 * provided to bus space described by tag/handle/offset.
369 */
370 void
371 octopci_bs_wm_1(void *t, bus_space_handle_t bsh,
372 bus_size_t offset, const uint8_t *addr, size_t count)
373 {
374 bus_addr_t baddr = bsh + offset;
375
376 while (count--)
377 wr8(baddr, *addr++);
378 }
379
380 void
381 octopci_bs_wm_2(void *t, bus_space_handle_t bsh,
382 bus_size_t offset, const uint16_t *addr, size_t count)
383 {
384 bus_addr_t baddr = bsh + offset;
385
386 while (count--)
387 wr16(baddr, *addr++);
388 }
389
390 void
391 octopci_bs_wm_4(void *t, bus_space_handle_t bsh,
392 bus_size_t offset, const uint32_t *addr, size_t count)
393 {
394 bus_addr_t baddr = bsh + offset;
395
396 while (count--)
397 wr32(baddr, *addr++);
398 }
399
400 /*
401 * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided
402 * to bus space described by tag/handle starting at `offset'.
403 */
404 void
405 octopci_bs_wr_1(void *t, bus_space_handle_t bsh,
406 bus_size_t offset, const uint8_t *addr, size_t count)
407 {
408 bus_addr_t baddr = bsh + offset;
409
410 while (count--) {
411 wr8(baddr, *addr++);
412 baddr += 1;
413 }
414 }
415
416 void
417 octopci_bs_wr_2(void *t, bus_space_handle_t bsh,
418 bus_size_t offset, const uint16_t *addr, size_t count)
419 {
420 bus_addr_t baddr = bsh + offset;
421
422 while (count--) {
423 wr16(baddr, *addr++);
424 baddr += 2;
425 }
426 }
427
428 void
429 octopci_bs_wr_4(void *t, bus_space_handle_t bsh,
430 bus_size_t offset, const uint32_t *addr, size_t count)
431 {
432 bus_addr_t baddr = bsh + offset;
433
434 while (count--) {
435 wr32(baddr, *addr++);
436 baddr += 4;
437 }
438 }
439
440 /*
441 * Write the 1, 2, 4, or 8 byte value `val' to bus space described
442 * by tag/handle/offset `count' times.
443 */
444 void
445 octopci_bs_sm_1(void *t, bus_space_handle_t bsh,
446 bus_size_t offset, uint8_t value, size_t count)
447 {
448 bus_addr_t addr = bsh + offset;
449
450 while (count--)
451 wr8(addr, value);
452 }
453
454 void
455 octopci_bs_sm_2(void *t, bus_space_handle_t bsh,
456 bus_size_t offset, uint16_t value, size_t count)
457 {
458 bus_addr_t addr = bsh + offset;
459
460 while (count--)
461 wr16(addr, value);
462 }
463
464 void
465 octopci_bs_sm_4(void *t, bus_space_handle_t bsh,
466 bus_size_t offset, uint32_t value, size_t count)
467 {
468 bus_addr_t addr = bsh + offset;
469
470 while (count--)
471 wr32(addr, value);
472 }
473
474 /*
475 * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
476 * by tag/handle starting at `offset'.
477 */
478 void
479 octopci_bs_sr_1(void *t, bus_space_handle_t bsh,
480 bus_size_t offset, uint8_t value, size_t count)
481 {
482 bus_addr_t addr = bsh + offset;
483
484 for (; count != 0; count--, addr++)
485 wr8(addr, value);
486 }
487
488 void
489 octopci_bs_sr_2(void *t, bus_space_handle_t bsh,
490 bus_size_t offset, uint16_t value, size_t count)
491 {
492 bus_addr_t addr = bsh + offset;
493
494 for (; count != 0; count--, addr += 2)
495 wr16(addr, value);
496 }
497
498 void
499 octopci_bs_sr_4(void *t, bus_space_handle_t bsh,
500 bus_size_t offset, uint32_t value, size_t count)
501 {
502 bus_addr_t addr = bsh + offset;
503
504 for (; count != 0; count--, addr += 4)
505 wr32(addr, value);
506 }
507
508 /*
509 * Copy `count' 1, 2, 4, or 8 byte values from bus space starting
510 * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2.
511 */
512 void
513 octopci_bs_c_1(void *t, bus_space_handle_t bsh1,
514 bus_size_t off1, bus_space_handle_t bsh2,
515 bus_size_t off2, size_t count)
516 {
517 bus_addr_t addr1 = bsh1 + off1;
518 bus_addr_t addr2 = bsh2 + off2;
519
520 if (addr1 >= addr2) {
521 /* src after dest: copy forward */
522 for (; count != 0; count--, addr1++, addr2++)
523 wr8(addr2, rd8(addr1));
524 } else {
525 /* dest after src: copy backwards */
526 for (addr1 += (count - 1), addr2 += (count - 1);
527 count != 0; count--, addr1--, addr2--)
528 wr8(addr2, rd8(addr1));
529 }
530 }
531
532 void
533 octopci_bs_c_2(void *t, bus_space_handle_t bsh1,
534 bus_size_t off1, bus_space_handle_t bsh2,
535 bus_size_t off2, size_t count)
536 {
537 bus_addr_t addr1 = bsh1 + off1;
538 bus_addr_t addr2 = bsh2 + off2;
539
540 if (addr1 >= addr2) {
541 /* src after dest: copy forward */
542 for (; count != 0; count--, addr1 += 2, addr2 += 2)
543 wr16(addr2, rd16(addr1));
544 } else {
545 /* dest after src: copy backwards */
546 for (addr1 += 2 * (count - 1), addr2 += 2 * (count - 1);
547 count != 0; count--, addr1 -= 2, addr2 -= 2)
548 wr16(addr2, rd16(addr1));
549 }
550 }
551
552 void
553 octopci_bs_c_4(void *t, bus_space_handle_t bsh1,
554 bus_size_t off1, bus_space_handle_t bsh2,
555 bus_size_t off2, size_t count)
556 {
557 bus_addr_t addr1 = bsh1 + off1;
558 bus_addr_t addr2 = bsh2 + off2;
559
560 if (addr1 >= addr2) {
561 /* src after dest: copy forward */
562 for (; count != 0; count--, addr1 += 4, addr2 += 4)
563 wr32(addr2, rd32(addr1));
564 } else {
565 /* dest after src: copy backwards */
566 for (addr1 += 4 * (count - 1), addr2 += 4 * (count - 1);
567 count != 0; count--, addr1 -= 4, addr2 -= 4)
568 wr32(addr2, rd32(addr1));
569 }
570 }
571
572 void
573 octopci_bs_barrier(void *t __unused,
574 bus_space_handle_t bsh __unused,
575 bus_size_t offset __unused, bus_size_t len __unused,
576 int flags)
577 {
578 #if 0
579 if (flags & BUS_SPACE_BARRIER_WRITE)
580 mips_dcache_wbinv_all();
581 #endif
582 }
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