1/*-
2 * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
7 * NASA Ames Research Center.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the NetBSD
20 * Foundation, Inc. and its contributors.
21 * 4. Neither the name of The NetBSD Foundation nor the names of its
22 * contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 */
37
38/*-
39 * Copyright (c) 1996 Charles M. Hannum. All rights reserved.
40 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
41 *
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
44 * are met:
45 * 1. Redistributions of source code must retain the above copyright
46 * notice, this list of conditions and the following disclaimer.
47 * 2. Redistributions in binary form must reproduce the above copyright
48 * notice, this list of conditions and the following disclaimer in the
49 * documentation and/or other materials provided with the distribution.
50 * 3. All advertising materials mentioning features or use of this software
51 * must display the following acknowledgement:
52 * This product includes software developed by Christopher G. Demetriou
53 * for the NetBSD Project.
54 * 4. The name of the author may not be used to endorse or promote products
55 * derived from this software without specific prior written permission
56 *
57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
67 *
68 * $NetBSD: bus.h,v 1.9.4.1 2000/06/30 16:27:30 simonb Exp $
69 * $FreeBSD: head/sys/powerpc/include/bus.h 165147 2006-12-13 03:25:31Z marcel $
70 */
71
72#ifndef _MACPPC_BUS_H_
73#define _MACPPC_BUS_H_
74
75#include <machine/_bus.h>
76#include <machine/pio.h>
77
78#define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF
79#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
80#define BUS_SPACE_MAXSIZE 0xFFFFFFFF
81#define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF
82#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
83#define BUS_SPACE_MAXADDR 0xFFFFFFFF
84
85#define BUS_SPACE_UNRESTRICTED (~0)
86
87/*
88 * Values for the macppc bus space tag, not to be used directly by MI code.
89 */
90
91#define __BUS_SPACE_HAS_STREAM_METHODS 1
92
93/*
94 * Define the PPC tag values
95 */
96#define PPC_BUS_SPACE_MEM 1 /* space is mem space */
97#define PPC_BUS_SPACE_IO 2 /* space is io space */
98
99static __inline void *
100__ppc_ba(bus_space_tag_t tag __unused, bus_space_handle_t handle,
101 bus_size_t offset)
102{
103 return ((void *)(handle + offset));
104}
105
106/*
107 * int bus_space_map(bus_space_tag_t t, bus_addr_t addr,
108 * bus_size_t size, int flags, bus_space_handle_t *bshp));
109 *
110 * Map a region of bus space.
111 */
112
113static __inline int
114bus_space_map(bus_space_tag_t t __unused, bus_addr_t addr,
115 bus_size_t size __unused, int flags __unused,
116 bus_space_handle_t *bshp)
117{
118
119 *bshp = addr;
120 return (0);
121}
122
123/*
124 * int bus_space_unmap(bus_space_tag_t t,
125 * bus_space_handle_t bsh, bus_size_t size));
126 *
127 * Unmap a region of bus space.
128 */
129
130static __inline void
131bus_space_unmap(bus_space_tag_t t __unused, bus_space_handle_t bsh __unused,
132 bus_size_t size __unused)
133{
134}
135
136/*
137 * int bus_space_subregion(bus_space_tag_t t,
138 * bus_space_handle_t bsh, bus_size_t offset, bus_size_t size,
139 * bus_space_handle_t *nbshp));
140 *
141 * Get a new handle for a subregion of an already-mapped area of bus space.
142 */
143
144static __inline int
145bus_space_subregion(bus_space_tag_t t __unused, bus_space_handle_t bsh,
146 bus_size_t offset, bus_size_t size __unused, bus_space_handle_t *nbshp)
147{
148 *nbshp = bsh + offset;
149 return (0);
150}
151
152/*
153 * int bus_space_alloc(bus_space_tag_t t, bus_addr_t rstart,
154 * bus_addr_t rend, bus_size_t size, bus_size_t align,
155 * bus_size_t boundary, int flags, bus_addr_t *addrp,
156 * bus_space_handle_t *bshp));
157 *
158 * Allocate a region of bus space.
159 */
160
161#if 0
162#define bus_space_alloc(t, rs, re, s, a, b, f, ap, hp) !!! unimplemented !!!
163#endif
164
165/*
166 * int bus_space_free(bus_space_tag_t t,
167 * bus_space_handle_t bsh, bus_size_t size));
168 *
169 * Free a region of bus space.
170 */
171#if 0
172#define bus_space_free(t, h, s) !!! unimplemented !!!
173#endif
174
175/*
176 * u_intN_t bus_space_read_N(bus_space_tag_t tag,
177 * bus_space_handle_t bsh, bus_size_t offset));
178 *
179 * Read a 1, 2, 4, or 8 byte quantity from bus space
180 * described by tag/handle/offset.
181 */
182
183static __inline u_int8_t
184bus_space_read_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
185{
186 return (in8(__ppc_ba(t, h, o)));
187}
188
189static __inline u_int16_t
190bus_space_read_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
191{
192 return (in16rb(__ppc_ba(t, h, o)));
193}
194
195static __inline u_int32_t
196bus_space_read_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
197{
198 return (in32rb(__ppc_ba(t, h, o)));
199}
200
201#if 0 /* Cause a link error for bus_space_read_8 */
202#define bus_space_read_8(t, h, o) !!! unimplemented !!!
203#endif
204
205static __inline u_int8_t
206bus_space_read_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
207{
208 return (in8(__ppc_ba(t, h, o)));
209}
210
211static __inline u_int16_t
212bus_space_read_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
213{
214 return (in16(__ppc_ba(t, h, o)));
215}
216
217static __inline u_int32_t
218bus_space_read_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
219{
220 return (in32(__ppc_ba(t, h, o)));
221}
222
223#if 0 /* Cause a link error for bus_space_read_stream_8 */
224#define bus_space_read_stream_8(t, h, o) !!! unimplemented !!!
225#endif
226
227/*
228 * void bus_space_read_multi_N(bus_space_tag_t tag,
229 * bus_space_handle_t bsh, bus_size_t offset,
230 * u_intN_t *addr, size_t count));
231 *
232 * Read `count' 1, 2, 4, or 8 byte quantities from bus space
233 * described by tag/handle/offset and copy into buffer provided.
234 */
235
236static __inline void
237bus_space_read_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
238 u_int8_t *a, size_t c)
239{
240 ins8(__ppc_ba(t, h, o), a, c);
241}
242
243static __inline void
244bus_space_read_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
245 u_int16_t *a, size_t c)
246{
247 ins16rb(__ppc_ba(t, h, o), a, c);
248}
249
250static __inline void
251bus_space_read_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
252 u_int32_t *a, size_t c)
253{
254 ins32rb(__ppc_ba(t, h, o), a, c);
255}
256
257#if 0 /* Cause a link error for bus_space_read_multi_8 */
258#define bus_space_read_multi_8 !!! unimplemented !!!
259#endif
260
261static __inline void
262bus_space_read_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h,
263 bus_size_t o, u_int8_t *a, size_t c)
264{
265 ins8(__ppc_ba(t, h, o), a, c);
266}
267
268static __inline void
269bus_space_read_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h,
270 bus_size_t o, u_int16_t *a, size_t c)
271{
272 ins16(__ppc_ba(t, h, o), a, c);
273}
274
275static __inline void
276bus_space_read_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h,
277 bus_size_t o, u_int32_t *a, size_t c)
278{
279 ins32(__ppc_ba(t, h, o), a, c);
280}
281
282#if 0 /* Cause a link error for bus_space_read_multi_stream_8 */
283#define bus_space_read_multi_stream_8 !!! unimplemented !!!
284#endif
285
286/*
287 * void bus_space_read_region_N(bus_space_tag_t tag,
288 * bus_space_handle_t bsh, bus_size_t offset,
289 * u_intN_t *addr, size_t count));
290 *
291 * Read `count' 1, 2, 4, or 8 byte quantities from bus space
292 * described by tag/handle and starting at `offset' and copy into
293 * buffer provided.
294 */
295
296static __inline void
297bus_space_read_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
298 bus_size_t offset, u_int8_t *addr, size_t count)
299{
300 volatile u_int8_t *s = __ppc_ba(tag, bsh, offset);
301
302 while (count--)
303 *addr++ = *s++;
304 __asm __volatile("eieio; sync");
305}
306
307static __inline void
308bus_space_read_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
309 bus_size_t offset, u_int16_t *addr, size_t count)
310{
311 volatile u_int16_t *s = __ppc_ba(tag, bsh, offset);
312
313 while (count--)
314 __asm __volatile("lhbrx %0, 0, %1" :
315 "=r"(*addr++) : "r"(s++));
316 __asm __volatile("eieio; sync");
317}
318
319static __inline void
320bus_space_read_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
321 bus_size_t offset, u_int32_t *addr, size_t count)
322{
323 volatile u_int32_t *s = __ppc_ba(tag, bsh, offset);
324
325 while (count--)
326 __asm __volatile("lwbrx %0, 0, %1" :
327 "=r"(*addr++) : "r"(s++));
328 __asm __volatile("eieio; sync");
329}
330
331#if 0 /* Cause a link error for bus_space_read_region_8 */
332#define bus_space_read_region_8 !!! unimplemented !!!
333#endif
334
335static __inline void
336bus_space_read_region_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
337 bus_size_t offset, u_int16_t *addr, size_t count)
338{
339 volatile u_int16_t *s = __ppc_ba(tag, bsh, offset);
340
341 while (count--)
342 *addr++ = *s++;
343 __asm __volatile("eieio; sync");
344}
345
346static __inline void
347bus_space_read_region_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
348 bus_size_t offset, u_int32_t *addr, size_t count)
349{
350 volatile u_int32_t *s = __ppc_ba(tag, bsh, offset);
351
352 while (count--)
353 *addr++ = *s++;
354 __asm __volatile("eieio; sync");
355}
356
357#if 0 /* Cause a link error */
358#define bus_space_read_region_stream_8 !!! unimplemented !!!
359#endif
360
361/*
362 * void bus_space_write_N(bus_space_tag_t tag,
363 * bus_space_handle_t bsh, bus_size_t offset,
364 * u_intN_t value));
365 *
366 * Write the 1, 2, 4, or 8 byte value `value' to bus space
367 * described by tag/handle/offset.
368 */
369
370static __inline void
371bus_space_write_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
372 uint8_t v)
373{
374 out8(__ppc_ba(t, h, o), v);
375}
376
377static __inline void
378bus_space_write_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
379 uint16_t v)
380{
381 out16rb(__ppc_ba(t, h, o), v);
382}
383
384static __inline void
385bus_space_write_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
386 uint32_t v)
387{
388 out32rb(__ppc_ba(t, h, o), v);
389}
390
391#if 0 /* Cause a link error for bus_space_write_8 */
392#define bus_space_write_8 !!! unimplemented !!!
393#endif
394
395static __inline void
396bus_space_write_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
397 uint8_t v)
398{
399 out8(__ppc_ba(t, h, o), v);
400}
401
402static __inline void
403bus_space_write_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
404 uint16_t v)
405{
406 out16(__ppc_ba(t, h, o), v);
407}
408
409static __inline void
410bus_space_write_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
411 uint32_t v)
412{
413 out32(__ppc_ba(t, h, o), v);
414}
415
416#if 0 /* Cause a link error for bus_space_write_stream_8 */
417#define bus_space_write_stream_8 !!! unimplemented !!!
418#endif
419
420
421/*
422 * void bus_space_write_multi_N(bus_space_tag_t tag,
423 * bus_space_handle_t bsh, bus_size_t offset,
424 * const u_intN_t *addr, size_t count));
425 *
426 * Write `count' 1, 2, 4, or 8 byte quantities from the buffer
427 * provided to bus space described by tag/handle/offset.
428 */
429
430static __inline void
431bus_space_write_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
432 uint8_t *a, size_t c)
433{
434 outsb(__ppc_ba(t, h, o), a, c);
435}
436
437static __inline void
438bus_space_write_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
439 uint16_t *a, size_t c)
440{
441 outsw(__ppc_ba(t, h, o), a, c);
442}
443
444static __inline void
445bus_space_write_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
446 uint32_t *a, size_t c)
447{
448 outsl(__ppc_ba(t, h, o), a, c);
449}
450
451#if 0
452#define bus_space_write_multi_8 !!! unimplemented !!!
453#endif
454
455static __inline void
456bus_space_write_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h,
457 bus_size_t o, const u_int8_t *a, size_t c)
458{
459 outsb(__ppc_ba(t, h, o), a, c);
460}
461
462static __inline void
463bus_space_write_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h,
464 bus_size_t o, const u_int16_t *a, size_t c)
465{
466 outsw(__ppc_ba(t, h, o), a, c);
467}
468
469static __inline void
470bus_space_write_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h,
471 bus_size_t o, const u_int32_t *a, size_t c)
472{
473 outsl(__ppc_ba(t, h, o), a, c);
474}
475
476#if 0
477#define bus_space_write_multi_stream_8 !!! unimplemented !!!
478#endif
479
480/*
481 * void bus_space_write_region_N(bus_space_tag_t tag,
482 * bus_space_handle_t bsh, bus_size_t offset,
483 * const u_intN_t *addr, size_t count));
484 *
485 * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided
486 * to bus space described by tag/handle starting at `offset'.
487 */
488
489static __inline void
490bus_space_write_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
491 bus_size_t offset, const u_int8_t *addr, size_t count)
492{
493 volatile u_int8_t *d = __ppc_ba(tag, bsh, offset);
494
495 while (count--)
496 *d++ = *addr++;
497 __asm __volatile("eieio; sync");
498}
499
500static __inline void
501bus_space_write_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
502 bus_size_t offset, const u_int16_t *addr, size_t count)
503{
504 volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
505
506 while (count--)
507 __asm __volatile("sthbrx %0, 0, %1" ::
508 "r"(*addr++), "r"(d++));
509 __asm __volatile("eieio; sync");
510}
511
512static __inline void
513bus_space_write_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
514 bus_size_t offset, const u_int32_t *addr, size_t count)
515{
516 volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
517
518 while (count--)
519 __asm __volatile("stwbrx %0, 0, %1" ::
520 "r"(*addr++), "r"(d++));
521 __asm __volatile("eieio; sync");
522}
523
524#if 0
525#define bus_space_write_region_8 !!! bus_space_write_region_8 unimplemented !!!
526#endif
527
528static __inline void
529bus_space_write_region_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
530 bus_size_t offset, const u_int16_t *addr, size_t count)
531{
532 volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
533
534 while (count--)
535 *d++ = *addr++;
536 __asm __volatile("eieio; sync");
537}
538
539static __inline void
540bus_space_write_region_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
541 bus_size_t offset, const u_int32_t *addr, size_t count)
542{
543 volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
544
545 while (count--)
546 *d++ = *addr++;
547 __asm __volatile("eieio; sync");
548}
549
550#if 0
551#define bus_space_write_region_stream_8 !!! unimplemented !!!
552#endif
553
554/*
555 * void bus_space_set_multi_N(bus_space_tag_t tag,
556 * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val,
557 * size_t count));
558 *
559 * Write the 1, 2, 4, or 8 byte value `val' to bus space described
560 * by tag/handle/offset `count' times.
561 */
562
563static __inline void
564bus_space_set_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh,
565 bus_size_t offset, u_int8_t val, size_t count)
566{
567 volatile u_int8_t *d = __ppc_ba(tag, bsh, offset);
568
569 while (count--)
570 *d = val;
571 __asm __volatile("eieio; sync");
572}
573
574static __inline void
575bus_space_set_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh,
576 bus_size_t offset, u_int16_t val, size_t count)
577{
578 volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
579
580 while (count--)
581 __asm __volatile("sthbrx %0, 0, %1" ::
582 "r"(val), "r"(d));
583 __asm __volatile("eieio; sync");
584}
585
586static __inline void
587bus_space_set_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh,
588 bus_size_t offset, u_int32_t val, size_t count)
589{
590 volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
591
592 while (count--)
593 __asm __volatile("stwbrx %0, 0, %1" ::
594 "r"(val), "r"(d));
595 __asm __volatile("eieio; sync");
596}
597
598#if 0
599#define bus_space_set_multi_8 !!! bus_space_set_multi_8 unimplemented !!!
600#endif
601
602static __inline void
603bus_space_set_multi_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
604 bus_size_t offset, u_int16_t val, size_t count)
605{
606 volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
607
608 while (count--)
609 *d = val;
610 __asm __volatile("eieio; sync");
611}
612
613static __inline void
614bus_space_set_multi_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
615 bus_size_t offset, u_int32_t val, size_t count)
616{
617 volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
618
619 while (count--)
620 *d = val;
621 __asm __volatile("eieio; sync");
622}
623
624#if 0
625#define bus_space_set_multi_stream_8 !!! unimplemented !!!
626#endif
627
628/*
629 * void bus_space_set_region_N(bus_space_tag_t tag,
630 * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val,
631 * size_t count));
632 *
633 * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
634 * by tag/handle starting at `offset'.
635 */
636
637static __inline void
638bus_space_set_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
639 bus_size_t offset, u_int8_t val, size_t count)
640{
641 volatile u_int8_t *d = __ppc_ba(tag, bsh, offset);
642
643 while (count--)
644 *d++ = val;
645 __asm __volatile("eieio; sync");
646}
647
648static __inline void
649bus_space_set_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
650 bus_size_t offset, u_int16_t val, size_t count)
651{
652 volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
653
654 while (count--)
655 __asm __volatile("sthbrx %0, 0, %1" ::
656 "r"(val), "r"(d++));
657 __asm __volatile("eieio; sync");
658}
659
660static __inline void
661bus_space_set_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
662 bus_size_t offset, u_int32_t val, size_t count)
663{
664 volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
665
666 while (count--)
667 __asm __volatile("stwbrx %0, 0, %1" ::
668 "r"(val), "r"(d++));
669 __asm __volatile("eieio; sync");
670}
671
672#if 0
673#define bus_space_set_region_8 !!! bus_space_set_region_8 unimplemented !!!
674#endif
675
676static __inline void
677bus_space_set_region_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
678 bus_size_t offset, u_int16_t val, size_t count)
679{
680 volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
681
682 while (count--)
683 *d++ = val;
684 __asm __volatile("eieio; sync");
685}
686
687static __inline void
688bus_space_set_region_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
689 bus_size_t offset, u_int32_t val, size_t count)
690{
691 volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
692
693 while (count--)
694 *d++ = val;
695 __asm __volatile("eieio; sync");
696}
697
698#if 0
699#define bus_space_set_region_stream_8 !!! unimplemented !!!
700#endif
701
702/*
703 * void bus_space_copy_region_N(bus_space_tag_t tag,
704 * bus_space_handle_t bsh1, bus_size_t off1,
705 * bus_space_handle_t bsh2, bus_size_t off2,
706 * size_t count));
707 *
708 * Copy `count' 1, 2, 4, or 8 byte values from bus space starting
709 * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2.
710 */
711
712 /* XXX IMPLEMENT bus_space_copy_N() XXX */
713
714/*
715 * Bus read/write barrier methods.
716 *
717 * void bus_space_barrier(bus_space_tag_t tag,
718 * bus_space_handle_t bsh, bus_size_t offset,
719 * bus_size_t len, int flags));
720 *
721 * Note: the macppc does not currently require barriers, but we must
722 * provide the flags to MI code.
723 */
724
725#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */
726#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */
727
728static __inline void
729bus_space_barrier(bus_space_tag_t tag __unused,
730 bus_space_handle_t bsh __unused, bus_size_t offset __unused,
731 bus_size_t len __unused, int flags __unused)
732{
733 __asm __volatile("" : : : "memory");
734}
735
736
737#define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t)
738
739#include <machine/bus_dma.h>
740
741#endif /* _MACPPC_BUS_H_ */
2 * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
7 * NASA Ames Research Center.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the NetBSD
20 * Foundation, Inc. and its contributors.
21 * 4. Neither the name of The NetBSD Foundation nor the names of its
22 * contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 */
37
38/*-
39 * Copyright (c) 1996 Charles M. Hannum. All rights reserved.
40 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
41 *
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
44 * are met:
45 * 1. Redistributions of source code must retain the above copyright
46 * notice, this list of conditions and the following disclaimer.
47 * 2. Redistributions in binary form must reproduce the above copyright
48 * notice, this list of conditions and the following disclaimer in the
49 * documentation and/or other materials provided with the distribution.
50 * 3. All advertising materials mentioning features or use of this software
51 * must display the following acknowledgement:
52 * This product includes software developed by Christopher G. Demetriou
53 * for the NetBSD Project.
54 * 4. The name of the author may not be used to endorse or promote products
55 * derived from this software without specific prior written permission
56 *
57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
67 *
68 * $NetBSD: bus.h,v 1.9.4.1 2000/06/30 16:27:30 simonb Exp $
69 * $FreeBSD: head/sys/powerpc/include/bus.h 165147 2006-12-13 03:25:31Z marcel $
70 */
71
72#ifndef _MACPPC_BUS_H_
73#define _MACPPC_BUS_H_
74
75#include <machine/_bus.h>
76#include <machine/pio.h>
77
78#define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF
79#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
80#define BUS_SPACE_MAXSIZE 0xFFFFFFFF
81#define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF
82#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
83#define BUS_SPACE_MAXADDR 0xFFFFFFFF
84
85#define BUS_SPACE_UNRESTRICTED (~0)
86
87/*
88 * Values for the macppc bus space tag, not to be used directly by MI code.
89 */
90
91#define __BUS_SPACE_HAS_STREAM_METHODS 1
92
93/*
94 * Define the PPC tag values
95 */
96#define PPC_BUS_SPACE_MEM 1 /* space is mem space */
97#define PPC_BUS_SPACE_IO 2 /* space is io space */
98
99static __inline void *
100__ppc_ba(bus_space_tag_t tag __unused, bus_space_handle_t handle,
101 bus_size_t offset)
102{
103 return ((void *)(handle + offset));
104}
105
106/*
107 * int bus_space_map(bus_space_tag_t t, bus_addr_t addr,
108 * bus_size_t size, int flags, bus_space_handle_t *bshp));
109 *
110 * Map a region of bus space.
111 */
112
113static __inline int
114bus_space_map(bus_space_tag_t t __unused, bus_addr_t addr,
115 bus_size_t size __unused, int flags __unused,
116 bus_space_handle_t *bshp)
117{
118
119 *bshp = addr;
120 return (0);
121}
122
123/*
124 * int bus_space_unmap(bus_space_tag_t t,
125 * bus_space_handle_t bsh, bus_size_t size));
126 *
127 * Unmap a region of bus space.
128 */
129
130static __inline void
131bus_space_unmap(bus_space_tag_t t __unused, bus_space_handle_t bsh __unused,
132 bus_size_t size __unused)
133{
134}
135
136/*
137 * int bus_space_subregion(bus_space_tag_t t,
138 * bus_space_handle_t bsh, bus_size_t offset, bus_size_t size,
139 * bus_space_handle_t *nbshp));
140 *
141 * Get a new handle for a subregion of an already-mapped area of bus space.
142 */
143
144static __inline int
145bus_space_subregion(bus_space_tag_t t __unused, bus_space_handle_t bsh,
146 bus_size_t offset, bus_size_t size __unused, bus_space_handle_t *nbshp)
147{
148 *nbshp = bsh + offset;
149 return (0);
150}
151
152/*
153 * int bus_space_alloc(bus_space_tag_t t, bus_addr_t rstart,
154 * bus_addr_t rend, bus_size_t size, bus_size_t align,
155 * bus_size_t boundary, int flags, bus_addr_t *addrp,
156 * bus_space_handle_t *bshp));
157 *
158 * Allocate a region of bus space.
159 */
160
161#if 0
162#define bus_space_alloc(t, rs, re, s, a, b, f, ap, hp) !!! unimplemented !!!
163#endif
164
165/*
166 * int bus_space_free(bus_space_tag_t t,
167 * bus_space_handle_t bsh, bus_size_t size));
168 *
169 * Free a region of bus space.
170 */
171#if 0
172#define bus_space_free(t, h, s) !!! unimplemented !!!
173#endif
174
175/*
176 * u_intN_t bus_space_read_N(bus_space_tag_t tag,
177 * bus_space_handle_t bsh, bus_size_t offset));
178 *
179 * Read a 1, 2, 4, or 8 byte quantity from bus space
180 * described by tag/handle/offset.
181 */
182
183static __inline u_int8_t
184bus_space_read_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
185{
186 return (in8(__ppc_ba(t, h, o)));
187}
188
189static __inline u_int16_t
190bus_space_read_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
191{
192 return (in16rb(__ppc_ba(t, h, o)));
193}
194
195static __inline u_int32_t
196bus_space_read_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
197{
198 return (in32rb(__ppc_ba(t, h, o)));
199}
200
201#if 0 /* Cause a link error for bus_space_read_8 */
202#define bus_space_read_8(t, h, o) !!! unimplemented !!!
203#endif
204
205static __inline u_int8_t
206bus_space_read_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
207{
208 return (in8(__ppc_ba(t, h, o)));
209}
210
211static __inline u_int16_t
212bus_space_read_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
213{
214 return (in16(__ppc_ba(t, h, o)));
215}
216
217static __inline u_int32_t
218bus_space_read_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
219{
220 return (in32(__ppc_ba(t, h, o)));
221}
222
223#if 0 /* Cause a link error for bus_space_read_stream_8 */
224#define bus_space_read_stream_8(t, h, o) !!! unimplemented !!!
225#endif
226
227/*
228 * void bus_space_read_multi_N(bus_space_tag_t tag,
229 * bus_space_handle_t bsh, bus_size_t offset,
230 * u_intN_t *addr, size_t count));
231 *
232 * Read `count' 1, 2, 4, or 8 byte quantities from bus space
233 * described by tag/handle/offset and copy into buffer provided.
234 */
235
236static __inline void
237bus_space_read_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
238 u_int8_t *a, size_t c)
239{
240 ins8(__ppc_ba(t, h, o), a, c);
241}
242
243static __inline void
244bus_space_read_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
245 u_int16_t *a, size_t c)
246{
247 ins16rb(__ppc_ba(t, h, o), a, c);
248}
249
250static __inline void
251bus_space_read_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
252 u_int32_t *a, size_t c)
253{
254 ins32rb(__ppc_ba(t, h, o), a, c);
255}
256
257#if 0 /* Cause a link error for bus_space_read_multi_8 */
258#define bus_space_read_multi_8 !!! unimplemented !!!
259#endif
260
261static __inline void
262bus_space_read_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h,
263 bus_size_t o, u_int8_t *a, size_t c)
264{
265 ins8(__ppc_ba(t, h, o), a, c);
266}
267
268static __inline void
269bus_space_read_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h,
270 bus_size_t o, u_int16_t *a, size_t c)
271{
272 ins16(__ppc_ba(t, h, o), a, c);
273}
274
275static __inline void
276bus_space_read_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h,
277 bus_size_t o, u_int32_t *a, size_t c)
278{
279 ins32(__ppc_ba(t, h, o), a, c);
280}
281
282#if 0 /* Cause a link error for bus_space_read_multi_stream_8 */
283#define bus_space_read_multi_stream_8 !!! unimplemented !!!
284#endif
285
286/*
287 * void bus_space_read_region_N(bus_space_tag_t tag,
288 * bus_space_handle_t bsh, bus_size_t offset,
289 * u_intN_t *addr, size_t count));
290 *
291 * Read `count' 1, 2, 4, or 8 byte quantities from bus space
292 * described by tag/handle and starting at `offset' and copy into
293 * buffer provided.
294 */
295
296static __inline void
297bus_space_read_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
298 bus_size_t offset, u_int8_t *addr, size_t count)
299{
300 volatile u_int8_t *s = __ppc_ba(tag, bsh, offset);
301
302 while (count--)
303 *addr++ = *s++;
304 __asm __volatile("eieio; sync");
305}
306
307static __inline void
308bus_space_read_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
309 bus_size_t offset, u_int16_t *addr, size_t count)
310{
311 volatile u_int16_t *s = __ppc_ba(tag, bsh, offset);
312
313 while (count--)
314 __asm __volatile("lhbrx %0, 0, %1" :
315 "=r"(*addr++) : "r"(s++));
316 __asm __volatile("eieio; sync");
317}
318
319static __inline void
320bus_space_read_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
321 bus_size_t offset, u_int32_t *addr, size_t count)
322{
323 volatile u_int32_t *s = __ppc_ba(tag, bsh, offset);
324
325 while (count--)
326 __asm __volatile("lwbrx %0, 0, %1" :
327 "=r"(*addr++) : "r"(s++));
328 __asm __volatile("eieio; sync");
329}
330
331#if 0 /* Cause a link error for bus_space_read_region_8 */
332#define bus_space_read_region_8 !!! unimplemented !!!
333#endif
334
335static __inline void
336bus_space_read_region_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
337 bus_size_t offset, u_int16_t *addr, size_t count)
338{
339 volatile u_int16_t *s = __ppc_ba(tag, bsh, offset);
340
341 while (count--)
342 *addr++ = *s++;
343 __asm __volatile("eieio; sync");
344}
345
346static __inline void
347bus_space_read_region_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
348 bus_size_t offset, u_int32_t *addr, size_t count)
349{
350 volatile u_int32_t *s = __ppc_ba(tag, bsh, offset);
351
352 while (count--)
353 *addr++ = *s++;
354 __asm __volatile("eieio; sync");
355}
356
357#if 0 /* Cause a link error */
358#define bus_space_read_region_stream_8 !!! unimplemented !!!
359#endif
360
361/*
362 * void bus_space_write_N(bus_space_tag_t tag,
363 * bus_space_handle_t bsh, bus_size_t offset,
364 * u_intN_t value));
365 *
366 * Write the 1, 2, 4, or 8 byte value `value' to bus space
367 * described by tag/handle/offset.
368 */
369
370static __inline void
371bus_space_write_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
372 uint8_t v)
373{
374 out8(__ppc_ba(t, h, o), v);
375}
376
377static __inline void
378bus_space_write_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
379 uint16_t v)
380{
381 out16rb(__ppc_ba(t, h, o), v);
382}
383
384static __inline void
385bus_space_write_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
386 uint32_t v)
387{
388 out32rb(__ppc_ba(t, h, o), v);
389}
390
391#if 0 /* Cause a link error for bus_space_write_8 */
392#define bus_space_write_8 !!! unimplemented !!!
393#endif
394
395static __inline void
396bus_space_write_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
397 uint8_t v)
398{
399 out8(__ppc_ba(t, h, o), v);
400}
401
402static __inline void
403bus_space_write_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
404 uint16_t v)
405{
406 out16(__ppc_ba(t, h, o), v);
407}
408
409static __inline void
410bus_space_write_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
411 uint32_t v)
412{
413 out32(__ppc_ba(t, h, o), v);
414}
415
416#if 0 /* Cause a link error for bus_space_write_stream_8 */
417#define bus_space_write_stream_8 !!! unimplemented !!!
418#endif
419
420
421/*
422 * void bus_space_write_multi_N(bus_space_tag_t tag,
423 * bus_space_handle_t bsh, bus_size_t offset,
424 * const u_intN_t *addr, size_t count));
425 *
426 * Write `count' 1, 2, 4, or 8 byte quantities from the buffer
427 * provided to bus space described by tag/handle/offset.
428 */
429
430static __inline void
431bus_space_write_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
432 uint8_t *a, size_t c)
433{
434 outsb(__ppc_ba(t, h, o), a, c);
435}
436
437static __inline void
438bus_space_write_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
439 uint16_t *a, size_t c)
440{
441 outsw(__ppc_ba(t, h, o), a, c);
442}
443
444static __inline void
445bus_space_write_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
446 uint32_t *a, size_t c)
447{
448 outsl(__ppc_ba(t, h, o), a, c);
449}
450
451#if 0
452#define bus_space_write_multi_8 !!! unimplemented !!!
453#endif
454
455static __inline void
456bus_space_write_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h,
457 bus_size_t o, const u_int8_t *a, size_t c)
458{
459 outsb(__ppc_ba(t, h, o), a, c);
460}
461
462static __inline void
463bus_space_write_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h,
464 bus_size_t o, const u_int16_t *a, size_t c)
465{
466 outsw(__ppc_ba(t, h, o), a, c);
467}
468
469static __inline void
470bus_space_write_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h,
471 bus_size_t o, const u_int32_t *a, size_t c)
472{
473 outsl(__ppc_ba(t, h, o), a, c);
474}
475
476#if 0
477#define bus_space_write_multi_stream_8 !!! unimplemented !!!
478#endif
479
480/*
481 * void bus_space_write_region_N(bus_space_tag_t tag,
482 * bus_space_handle_t bsh, bus_size_t offset,
483 * const u_intN_t *addr, size_t count));
484 *
485 * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided
486 * to bus space described by tag/handle starting at `offset'.
487 */
488
489static __inline void
490bus_space_write_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
491 bus_size_t offset, const u_int8_t *addr, size_t count)
492{
493 volatile u_int8_t *d = __ppc_ba(tag, bsh, offset);
494
495 while (count--)
496 *d++ = *addr++;
497 __asm __volatile("eieio; sync");
498}
499
500static __inline void
501bus_space_write_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
502 bus_size_t offset, const u_int16_t *addr, size_t count)
503{
504 volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
505
506 while (count--)
507 __asm __volatile("sthbrx %0, 0, %1" ::
508 "r"(*addr++), "r"(d++));
509 __asm __volatile("eieio; sync");
510}
511
512static __inline void
513bus_space_write_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
514 bus_size_t offset, const u_int32_t *addr, size_t count)
515{
516 volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
517
518 while (count--)
519 __asm __volatile("stwbrx %0, 0, %1" ::
520 "r"(*addr++), "r"(d++));
521 __asm __volatile("eieio; sync");
522}
523
524#if 0
525#define bus_space_write_region_8 !!! bus_space_write_region_8 unimplemented !!!
526#endif
527
528static __inline void
529bus_space_write_region_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
530 bus_size_t offset, const u_int16_t *addr, size_t count)
531{
532 volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
533
534 while (count--)
535 *d++ = *addr++;
536 __asm __volatile("eieio; sync");
537}
538
539static __inline void
540bus_space_write_region_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
541 bus_size_t offset, const u_int32_t *addr, size_t count)
542{
543 volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
544
545 while (count--)
546 *d++ = *addr++;
547 __asm __volatile("eieio; sync");
548}
549
550#if 0
551#define bus_space_write_region_stream_8 !!! unimplemented !!!
552#endif
553
554/*
555 * void bus_space_set_multi_N(bus_space_tag_t tag,
556 * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val,
557 * size_t count));
558 *
559 * Write the 1, 2, 4, or 8 byte value `val' to bus space described
560 * by tag/handle/offset `count' times.
561 */
562
563static __inline void
564bus_space_set_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh,
565 bus_size_t offset, u_int8_t val, size_t count)
566{
567 volatile u_int8_t *d = __ppc_ba(tag, bsh, offset);
568
569 while (count--)
570 *d = val;
571 __asm __volatile("eieio; sync");
572}
573
574static __inline void
575bus_space_set_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh,
576 bus_size_t offset, u_int16_t val, size_t count)
577{
578 volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
579
580 while (count--)
581 __asm __volatile("sthbrx %0, 0, %1" ::
582 "r"(val), "r"(d));
583 __asm __volatile("eieio; sync");
584}
585
586static __inline void
587bus_space_set_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh,
588 bus_size_t offset, u_int32_t val, size_t count)
589{
590 volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
591
592 while (count--)
593 __asm __volatile("stwbrx %0, 0, %1" ::
594 "r"(val), "r"(d));
595 __asm __volatile("eieio; sync");
596}
597
598#if 0
599#define bus_space_set_multi_8 !!! bus_space_set_multi_8 unimplemented !!!
600#endif
601
602static __inline void
603bus_space_set_multi_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
604 bus_size_t offset, u_int16_t val, size_t count)
605{
606 volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
607
608 while (count--)
609 *d = val;
610 __asm __volatile("eieio; sync");
611}
612
613static __inline void
614bus_space_set_multi_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
615 bus_size_t offset, u_int32_t val, size_t count)
616{
617 volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
618
619 while (count--)
620 *d = val;
621 __asm __volatile("eieio; sync");
622}
623
624#if 0
625#define bus_space_set_multi_stream_8 !!! unimplemented !!!
626#endif
627
628/*
629 * void bus_space_set_region_N(bus_space_tag_t tag,
630 * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val,
631 * size_t count));
632 *
633 * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
634 * by tag/handle starting at `offset'.
635 */
636
637static __inline void
638bus_space_set_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
639 bus_size_t offset, u_int8_t val, size_t count)
640{
641 volatile u_int8_t *d = __ppc_ba(tag, bsh, offset);
642
643 while (count--)
644 *d++ = val;
645 __asm __volatile("eieio; sync");
646}
647
648static __inline void
649bus_space_set_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
650 bus_size_t offset, u_int16_t val, size_t count)
651{
652 volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
653
654 while (count--)
655 __asm __volatile("sthbrx %0, 0, %1" ::
656 "r"(val), "r"(d++));
657 __asm __volatile("eieio; sync");
658}
659
660static __inline void
661bus_space_set_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
662 bus_size_t offset, u_int32_t val, size_t count)
663{
664 volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
665
666 while (count--)
667 __asm __volatile("stwbrx %0, 0, %1" ::
668 "r"(val), "r"(d++));
669 __asm __volatile("eieio; sync");
670}
671
672#if 0
673#define bus_space_set_region_8 !!! bus_space_set_region_8 unimplemented !!!
674#endif
675
676static __inline void
677bus_space_set_region_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
678 bus_size_t offset, u_int16_t val, size_t count)
679{
680 volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
681
682 while (count--)
683 *d++ = val;
684 __asm __volatile("eieio; sync");
685}
686
687static __inline void
688bus_space_set_region_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
689 bus_size_t offset, u_int32_t val, size_t count)
690{
691 volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
692
693 while (count--)
694 *d++ = val;
695 __asm __volatile("eieio; sync");
696}
697
698#if 0
699#define bus_space_set_region_stream_8 !!! unimplemented !!!
700#endif
701
702/*
703 * void bus_space_copy_region_N(bus_space_tag_t tag,
704 * bus_space_handle_t bsh1, bus_size_t off1,
705 * bus_space_handle_t bsh2, bus_size_t off2,
706 * size_t count));
707 *
708 * Copy `count' 1, 2, 4, or 8 byte values from bus space starting
709 * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2.
710 */
711
712 /* XXX IMPLEMENT bus_space_copy_N() XXX */
713
714/*
715 * Bus read/write barrier methods.
716 *
717 * void bus_space_barrier(bus_space_tag_t tag,
718 * bus_space_handle_t bsh, bus_size_t offset,
719 * bus_size_t len, int flags));
720 *
721 * Note: the macppc does not currently require barriers, but we must
722 * provide the flags to MI code.
723 */
724
725#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */
726#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */
727
728static __inline void
729bus_space_barrier(bus_space_tag_t tag __unused,
730 bus_space_handle_t bsh __unused, bus_size_t offset __unused,
731 bus_size_t len __unused, int flags __unused)
732{
733 __asm __volatile("" : : : "memory");
734}
735
736
737#define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t)
738
739#include <machine/bus_dma.h>
740
741#endif /* _MACPPC_BUS_H_ */