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1/*
2 * drivers/acpi/resource.c - ACPI device resources interpretation.
3 *
4 * Copyright (C) 2012, Intel Corp.
5 * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
6 *
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as published
11 * by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
19 */
20
21#include <linux/acpi.h>
22#include <linux/device.h>
23#include <linux/export.h>
24#include <linux/ioport.h>
25#include <linux/slab.h>
26#include <linux/irq.h>
27
28#ifdef CONFIG_X86
29#define valid_IRQ(i) (((i) != 0) && ((i) != 2))
30static inline bool acpi_iospace_resource_valid(struct resource *res)
31{
32 /* On X86 IO space is limited to the [0 - 64K] IO port range */
33 return res->end < 0x10003;
34}
35#else
36#define valid_IRQ(i) (true)
37/*
38 * ACPI IO descriptors on arches other than X86 contain MMIO CPU physical
39 * addresses mapping IO space in CPU physical address space, IO space
40 * resources can be placed anywhere in the 64-bit physical address space.
41 */
42static inline bool
43acpi_iospace_resource_valid(struct resource *res) { return true; }
44#endif
45
46static bool acpi_dev_resource_len_valid(u64 start, u64 end, u64 len, bool io)
47{
48 u64 reslen = end - start + 1;
49
50 /*
51 * CHECKME: len might be required to check versus a minimum
52 * length as well. 1 for io is fine, but for memory it does
53 * not make any sense at all.
54 * Note: some BIOSes report incorrect length for ACPI address space
55 * descriptor, so remove check of 'reslen == len' to avoid regression.
56 */
57 if (len && reslen && start <= end)
58 return true;
59
60 pr_debug("ACPI: invalid or unassigned resource %s [%016llx - %016llx] length [%016llx]\n",
61 io ? "io" : "mem", start, end, len);
62
63 return false;
64}
65
66static void acpi_dev_memresource_flags(struct resource *res, u64 len,
67 u8 write_protect)
68{
69 res->flags = IORESOURCE_MEM;
70
71 if (!acpi_dev_resource_len_valid(res->start, res->end, len, false))
72 res->flags |= IORESOURCE_DISABLED | IORESOURCE_UNSET;
73
74 if (write_protect == ACPI_READ_WRITE_MEMORY)
75 res->flags |= IORESOURCE_MEM_WRITEABLE;
76}
77
78static void acpi_dev_get_memresource(struct resource *res, u64 start, u64 len,
79 u8 write_protect)
80{
81 res->start = start;
82 res->end = start + len - 1;
83 acpi_dev_memresource_flags(res, len, write_protect);
84}
85
86/**
87 * acpi_dev_resource_memory - Extract ACPI memory resource information.
88 * @ares: Input ACPI resource object.
89 * @res: Output generic resource object.
90 *
91 * Check if the given ACPI resource object represents a memory resource and
92 * if that's the case, use the information in it to populate the generic
93 * resource object pointed to by @res.
94 *
95 * Return:
96 * 1) false with res->flags setting to zero: not the expected resource type
97 * 2) false with IORESOURCE_DISABLED in res->flags: valid unassigned resource
98 * 3) true: valid assigned resource
99 */
100bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res)
101{
102 struct acpi_resource_memory24 *memory24;
103 struct acpi_resource_memory32 *memory32;
104 struct acpi_resource_fixed_memory32 *fixed_memory32;
105
106 switch (ares->type) {
107 case ACPI_RESOURCE_TYPE_MEMORY24:
108 memory24 = &ares->data.memory24;
109 acpi_dev_get_memresource(res, memory24->minimum << 8,
110 memory24->address_length << 8,
111 memory24->write_protect);
112 break;
113 case ACPI_RESOURCE_TYPE_MEMORY32:
114 memory32 = &ares->data.memory32;
115 acpi_dev_get_memresource(res, memory32->minimum,
116 memory32->address_length,
117 memory32->write_protect);
118 break;
119 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
120 fixed_memory32 = &ares->data.fixed_memory32;
121 acpi_dev_get_memresource(res, fixed_memory32->address,
122 fixed_memory32->address_length,
123 fixed_memory32->write_protect);
124 break;
125 default:
126 res->flags = 0;
127 return false;
128 }
129
130 return !(res->flags & IORESOURCE_DISABLED);
131}
132EXPORT_SYMBOL_GPL(acpi_dev_resource_memory);
133
134static void acpi_dev_ioresource_flags(struct resource *res, u64 len,
135 u8 io_decode, u8 translation_type)
136{
137 res->flags = IORESOURCE_IO;
138
139 if (!acpi_dev_resource_len_valid(res->start, res->end, len, true))
140 res->flags |= IORESOURCE_DISABLED | IORESOURCE_UNSET;
141
142 if (!acpi_iospace_resource_valid(res))
143 res->flags |= IORESOURCE_DISABLED | IORESOURCE_UNSET;
144
145 if (io_decode == ACPI_DECODE_16)
146 res->flags |= IORESOURCE_IO_16BIT_ADDR;
147 if (translation_type == ACPI_SPARSE_TRANSLATION)
148 res->flags |= IORESOURCE_IO_SPARSE;
149}
150
151static void acpi_dev_get_ioresource(struct resource *res, u64 start, u64 len,
152 u8 io_decode)
153{
154 res->start = start;
155 res->end = start + len - 1;
156 acpi_dev_ioresource_flags(res, len, io_decode, 0);
157}
158
159/**
160 * acpi_dev_resource_io - Extract ACPI I/O resource information.
161 * @ares: Input ACPI resource object.
162 * @res: Output generic resource object.
163 *
164 * Check if the given ACPI resource object represents an I/O resource and
165 * if that's the case, use the information in it to populate the generic
166 * resource object pointed to by @res.
167 *
168 * Return:
169 * 1) false with res->flags setting to zero: not the expected resource type
170 * 2) false with IORESOURCE_DISABLED in res->flags: valid unassigned resource
171 * 3) true: valid assigned resource
172 */
173bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res)
174{
175 struct acpi_resource_io *io;
176 struct acpi_resource_fixed_io *fixed_io;
177
178 switch (ares->type) {
179 case ACPI_RESOURCE_TYPE_IO:
180 io = &ares->data.io;
181 acpi_dev_get_ioresource(res, io->minimum,
182 io->address_length,
183 io->io_decode);
184 break;
185 case ACPI_RESOURCE_TYPE_FIXED_IO:
186 fixed_io = &ares->data.fixed_io;
187 acpi_dev_get_ioresource(res, fixed_io->address,
188 fixed_io->address_length,
189 ACPI_DECODE_10);
190 break;
191 default:
192 res->flags = 0;
193 return false;
194 }
195
196 return !(res->flags & IORESOURCE_DISABLED);
197}
198EXPORT_SYMBOL_GPL(acpi_dev_resource_io);
199
200static bool acpi_decode_space(struct resource_win *win,
201 struct acpi_resource_address *addr,
202 struct acpi_address64_attribute *attr)
203{
204 u8 iodec = attr->granularity == 0xfff ? ACPI_DECODE_10 : ACPI_DECODE_16;
205 bool wp = addr->info.mem.write_protect;
206 u64 len = attr->address_length;
207 u64 start, end, offset = 0;
208 struct resource *res = &win->res;
209
210 /*
211 * Filter out invalid descriptor according to ACPI Spec 5.0, section
212 * 6.4.3.5 Address Space Resource Descriptors.
213 */
214 if ((addr->min_address_fixed != addr->max_address_fixed && len) ||
215 (addr->min_address_fixed && addr->max_address_fixed && !len))
216 pr_debug("ACPI: Invalid address space min_addr_fix %d, max_addr_fix %d, len %llx\n",
217 addr->min_address_fixed, addr->max_address_fixed, len);
218
219 /*
220 * For bridges that translate addresses across the bridge,
221 * translation_offset is the offset that must be added to the
222 * address on the secondary side to obtain the address on the
223 * primary side. Non-bridge devices must list 0 for all Address
224 * Translation offset bits.
225 */
226 if (addr->producer_consumer == ACPI_PRODUCER)
227 offset = attr->translation_offset;
228 else if (attr->translation_offset)
229 pr_debug("ACPI: translation_offset(%lld) is invalid for non-bridge device.\n",
230 attr->translation_offset);
231 start = attr->minimum + offset;
232 end = attr->maximum + offset;
233
234 win->offset = offset;
235 res->start = start;
236 res->end = end;
237 if (sizeof(resource_size_t) < sizeof(u64) &&
238 (offset != win->offset || start != res->start || end != res->end)) {
239 pr_warn("acpi resource window ([%#llx-%#llx] ignored, not CPU addressable)\n",
240 attr->minimum, attr->maximum);
241 return false;
242 }
243
244 switch (addr->resource_type) {
245 case ACPI_MEMORY_RANGE:
246 acpi_dev_memresource_flags(res, len, wp);
247 break;
248 case ACPI_IO_RANGE:
249 acpi_dev_ioresource_flags(res, len, iodec,
250 addr->info.io.translation_type);
251 break;
252 case ACPI_BUS_NUMBER_RANGE:
253 res->flags = IORESOURCE_BUS;
254 break;
255 default:
256 return false;
257 }
258
259 if (addr->producer_consumer == ACPI_PRODUCER)
260 res->flags |= IORESOURCE_WINDOW;
261
262 if (addr->info.mem.caching == ACPI_PREFETCHABLE_MEMORY)
263 res->flags |= IORESOURCE_PREFETCH;
264
265 return !(res->flags & IORESOURCE_DISABLED);
266}
267
268/**
269 * acpi_dev_resource_address_space - Extract ACPI address space information.
270 * @ares: Input ACPI resource object.
271 * @win: Output generic resource object.
272 *
273 * Check if the given ACPI resource object represents an address space resource
274 * and if that's the case, use the information in it to populate the generic
275 * resource object pointed to by @win.
276 *
277 * Return:
278 * 1) false with win->res.flags setting to zero: not the expected resource type
279 * 2) false with IORESOURCE_DISABLED in win->res.flags: valid unassigned
280 * resource
281 * 3) true: valid assigned resource
282 */
283bool acpi_dev_resource_address_space(struct acpi_resource *ares,
284 struct resource_win *win)
285{
286 struct acpi_resource_address64 addr;
287
288 win->res.flags = 0;
289 if (ACPI_FAILURE(acpi_resource_to_address64(ares, &addr)))
290 return false;
291
292 return acpi_decode_space(win, (struct acpi_resource_address *)&addr,
293 &addr.address);
294}
295EXPORT_SYMBOL_GPL(acpi_dev_resource_address_space);
296
297/**
298 * acpi_dev_resource_ext_address_space - Extract ACPI address space information.
299 * @ares: Input ACPI resource object.
300 * @win: Output generic resource object.
301 *
302 * Check if the given ACPI resource object represents an extended address space
303 * resource and if that's the case, use the information in it to populate the
304 * generic resource object pointed to by @win.
305 *
306 * Return:
307 * 1) false with win->res.flags setting to zero: not the expected resource type
308 * 2) false with IORESOURCE_DISABLED in win->res.flags: valid unassigned
309 * resource
310 * 3) true: valid assigned resource
311 */
312bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
313 struct resource_win *win)
314{
315 struct acpi_resource_extended_address64 *ext_addr;
316
317 win->res.flags = 0;
318 if (ares->type != ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64)
319 return false;
320
321 ext_addr = &ares->data.ext_address64;
322
323 return acpi_decode_space(win, (struct acpi_resource_address *)ext_addr,
324 &ext_addr->address);
325}
326EXPORT_SYMBOL_GPL(acpi_dev_resource_ext_address_space);
327
328/**
329 * acpi_dev_irq_flags - Determine IRQ resource flags.
330 * @triggering: Triggering type as provided by ACPI.
331 * @polarity: Interrupt polarity as provided by ACPI.
332 * @shareable: Whether or not the interrupt is shareable.
333 */
334unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable)
335{
336 unsigned long flags;
337
338 if (triggering == ACPI_LEVEL_SENSITIVE)
339 flags = polarity == ACPI_ACTIVE_LOW ?
340 IORESOURCE_IRQ_LOWLEVEL : IORESOURCE_IRQ_HIGHLEVEL;
341 else
342 flags = polarity == ACPI_ACTIVE_LOW ?
343 IORESOURCE_IRQ_LOWEDGE : IORESOURCE_IRQ_HIGHEDGE;
344
345 if (shareable == ACPI_SHARED)
346 flags |= IORESOURCE_IRQ_SHAREABLE;
347
348 return flags | IORESOURCE_IRQ;
349}
350EXPORT_SYMBOL_GPL(acpi_dev_irq_flags);
351
352/**
353 * acpi_dev_get_irq_type - Determine irq type.
354 * @triggering: Triggering type as provided by ACPI.
355 * @polarity: Interrupt polarity as provided by ACPI.
356 */
357unsigned int acpi_dev_get_irq_type(int triggering, int polarity)
358{
359 switch (polarity) {
360 case ACPI_ACTIVE_LOW:
361 return triggering == ACPI_EDGE_SENSITIVE ?
362 IRQ_TYPE_EDGE_FALLING :
363 IRQ_TYPE_LEVEL_LOW;
364 case ACPI_ACTIVE_HIGH:
365 return triggering == ACPI_EDGE_SENSITIVE ?
366 IRQ_TYPE_EDGE_RISING :
367 IRQ_TYPE_LEVEL_HIGH;
368 case ACPI_ACTIVE_BOTH:
369 if (triggering == ACPI_EDGE_SENSITIVE)
370 return IRQ_TYPE_EDGE_BOTH;
371 default:
372 return IRQ_TYPE_NONE;
373 }
374}
375EXPORT_SYMBOL_GPL(acpi_dev_get_irq_type);
376
377static void acpi_dev_irqresource_disabled(struct resource *res, u32 gsi)
378{
379 res->start = gsi;
380 res->end = gsi;
381 res->flags = IORESOURCE_IRQ | IORESOURCE_DISABLED | IORESOURCE_UNSET;
382}
383
384static void acpi_dev_get_irqresource(struct resource *res, u32 gsi,
385 u8 triggering, u8 polarity, u8 shareable,
386 bool legacy)
387{
388 int irq, p, t;
389
390 if (!valid_IRQ(gsi)) {
391 acpi_dev_irqresource_disabled(res, gsi);
392 return;
393 }
394
395 /*
396 * In IO-APIC mode, use overrided attribute. Two reasons:
397 * 1. BIOS bug in DSDT
398 * 2. BIOS uses IO-APIC mode Interrupt Source Override
399 *
400 * We do this only if we are dealing with IRQ() or IRQNoFlags()
401 * resource (the legacy ISA resources). With modern ACPI 5 devices
402 * using extended IRQ descriptors we take the IRQ configuration
403 * from _CRS directly.
404 */
405 if (legacy && !acpi_get_override_irq(gsi, &t, &p)) {
406 u8 trig = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
407 u8 pol = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
408
409 if (triggering != trig || polarity != pol) {
410 pr_warning("ACPI: IRQ %d override to %s, %s\n", gsi,
411 t ? "level" : "edge", p ? "low" : "high");
412 triggering = trig;
413 polarity = pol;
414 }
415 }
416
417 res->flags = acpi_dev_irq_flags(triggering, polarity, shareable);
418 irq = acpi_register_gsi(NULL, gsi, triggering, polarity);
419 if (irq >= 0) {
420 res->start = irq;
421 res->end = irq;
422 } else {
423 acpi_dev_irqresource_disabled(res, gsi);
424 }
425}
426
427/**
428 * acpi_dev_resource_interrupt - Extract ACPI interrupt resource information.
429 * @ares: Input ACPI resource object.
430 * @index: Index into the array of GSIs represented by the resource.
431 * @res: Output generic resource object.
432 *
433 * Check if the given ACPI resource object represents an interrupt resource
434 * and @index does not exceed the resource's interrupt count (true is returned
435 * in that case regardless of the results of the other checks)). If that's the
436 * case, register the GSI corresponding to @index from the array of interrupts
437 * represented by the resource and populate the generic resource object pointed
438 * to by @res accordingly. If the registration of the GSI is not successful,
439 * IORESOURCE_DISABLED will be set it that object's flags.
440 *
441 * Return:
442 * 1) false with res->flags setting to zero: not the expected resource type
443 * 2) false with IORESOURCE_DISABLED in res->flags: valid unassigned resource
444 * 3) true: valid assigned resource
445 */
446bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
447 struct resource *res)
448{
449 struct acpi_resource_irq *irq;
450 struct acpi_resource_extended_irq *ext_irq;
451
452 switch (ares->type) {
453 case ACPI_RESOURCE_TYPE_IRQ:
454 /*
455 * Per spec, only one interrupt per descriptor is allowed in
456 * _CRS, but some firmware violates this, so parse them all.
457 */
458 irq = &ares->data.irq;
459 if (index >= irq->interrupt_count) {
460 acpi_dev_irqresource_disabled(res, 0);
461 return false;
462 }
463 acpi_dev_get_irqresource(res, irq->interrupts[index],
464 irq->triggering, irq->polarity,
465 irq->sharable, true);
466 break;
467 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
468 ext_irq = &ares->data.extended_irq;
469 if (index >= ext_irq->interrupt_count) {
470 acpi_dev_irqresource_disabled(res, 0);
471 return false;
472 }
473 acpi_dev_get_irqresource(res, ext_irq->interrupts[index],
474 ext_irq->triggering, ext_irq->polarity,
475 ext_irq->sharable, false);
476 break;
477 default:
478 res->flags = 0;
479 return false;
480 }
481
482 return true;
483}
484EXPORT_SYMBOL_GPL(acpi_dev_resource_interrupt);
485
486/**
487 * acpi_dev_free_resource_list - Free resource from %acpi_dev_get_resources().
488 * @list: The head of the resource list to free.
489 */
490void acpi_dev_free_resource_list(struct list_head *list)
491{
492 resource_list_free(list);
493}
494EXPORT_SYMBOL_GPL(acpi_dev_free_resource_list);
495
496struct res_proc_context {
497 struct list_head *list;
498 int (*preproc)(struct acpi_resource *, void *);
499 void *preproc_data;
500 int count;
501 int error;
502};
503
504static acpi_status acpi_dev_new_resource_entry(struct resource_win *win,
505 struct res_proc_context *c)
506{
507 struct resource_entry *rentry;
508
509 rentry = resource_list_create_entry(NULL, 0);
510 if (!rentry) {
511 c->error = -ENOMEM;
512 return AE_NO_MEMORY;
513 }
514 *rentry->res = win->res;
515 rentry->offset = win->offset;
516 resource_list_add_tail(rentry, c->list);
517 c->count++;
518 return AE_OK;
519}
520
521static acpi_status acpi_dev_process_resource(struct acpi_resource *ares,
522 void *context)
523{
524 struct res_proc_context *c = context;
525 struct resource_win win;
526 struct resource *res = &win.res;
527 int i;
528
529 if (c->preproc) {
530 int ret;
531
532 ret = c->preproc(ares, c->preproc_data);
533 if (ret < 0) {
534 c->error = ret;
535 return AE_CTRL_TERMINATE;
536 } else if (ret > 0) {
537 return AE_OK;
538 }
539 }
540
541 memset(&win, 0, sizeof(win));
542
543 if (acpi_dev_resource_memory(ares, res)
544 || acpi_dev_resource_io(ares, res)
545 || acpi_dev_resource_address_space(ares, &win)
546 || acpi_dev_resource_ext_address_space(ares, &win))
547 return acpi_dev_new_resource_entry(&win, c);
548
549 for (i = 0; acpi_dev_resource_interrupt(ares, i, res); i++) {
550 acpi_status status;
551
552 status = acpi_dev_new_resource_entry(&win, c);
553 if (ACPI_FAILURE(status))
554 return status;
555 }
556
557 return AE_OK;
558}
559
560/**
561 * acpi_dev_get_resources - Get current resources of a device.
562 * @adev: ACPI device node to get the resources for.
563 * @list: Head of the resultant list of resources (must be empty).
564 * @preproc: The caller's preprocessing routine.
565 * @preproc_data: Pointer passed to the caller's preprocessing routine.
566 *
567 * Evaluate the _CRS method for the given device node and process its output by
568 * (1) executing the @preproc() rountine provided by the caller, passing the
569 * resource pointer and @preproc_data to it as arguments, for each ACPI resource
570 * returned and (2) converting all of the returned ACPI resources into struct
571 * resource objects if possible. If the return value of @preproc() in step (1)
572 * is different from 0, step (2) is not applied to the given ACPI resource and
573 * if that value is negative, the whole processing is aborted and that value is
574 * returned as the final error code.
575 *
576 * The resultant struct resource objects are put on the list pointed to by
577 * @list, that must be empty initially, as members of struct resource_entry
578 * objects. Callers of this routine should use %acpi_dev_free_resource_list() to
579 * free that list.
580 *
581 * The number of resources in the output list is returned on success, an error
582 * code reflecting the error condition is returned otherwise.
583 */
584int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
585 int (*preproc)(struct acpi_resource *, void *),
586 void *preproc_data)
587{
588 struct res_proc_context c;
589 acpi_status status;
590
591 if (!adev || !adev->handle || !list_empty(list))
592 return -EINVAL;
593
594 if (!acpi_has_method(adev->handle, METHOD_NAME__CRS))
595 return 0;
596
597 c.list = list;
598 c.preproc = preproc;
599 c.preproc_data = preproc_data;
600 c.count = 0;
601 c.error = 0;
602 status = acpi_walk_resources(adev->handle, METHOD_NAME__CRS,
603 acpi_dev_process_resource, &c);
604 if (ACPI_FAILURE(status)) {
605 acpi_dev_free_resource_list(list);
606 return c.error ? c.error : -EIO;
607 }
608
609 return c.count;
610}
611EXPORT_SYMBOL_GPL(acpi_dev_get_resources);
612
613/**
614 * acpi_dev_filter_resource_type - Filter ACPI resource according to resource
615 * types
616 * @ares: Input ACPI resource object.
617 * @types: Valid resource types of IORESOURCE_XXX
618 *
619 * This is a helper function to support acpi_dev_get_resources(), which filters
620 * ACPI resource objects according to resource types.
621 */
622int acpi_dev_filter_resource_type(struct acpi_resource *ares,
623 unsigned long types)
624{
625 unsigned long type = 0;
626
627 switch (ares->type) {
628 case ACPI_RESOURCE_TYPE_MEMORY24:
629 case ACPI_RESOURCE_TYPE_MEMORY32:
630 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
631 type = IORESOURCE_MEM;
632 break;
633 case ACPI_RESOURCE_TYPE_IO:
634 case ACPI_RESOURCE_TYPE_FIXED_IO:
635 type = IORESOURCE_IO;
636 break;
637 case ACPI_RESOURCE_TYPE_IRQ:
638 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
639 type = IORESOURCE_IRQ;
640 break;
641 case ACPI_RESOURCE_TYPE_DMA:
642 case ACPI_RESOURCE_TYPE_FIXED_DMA:
643 type = IORESOURCE_DMA;
644 break;
645 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
646 type = IORESOURCE_REG;
647 break;
648 case ACPI_RESOURCE_TYPE_ADDRESS16:
649 case ACPI_RESOURCE_TYPE_ADDRESS32:
650 case ACPI_RESOURCE_TYPE_ADDRESS64:
651 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
652 if (ares->data.address.resource_type == ACPI_MEMORY_RANGE)
653 type = IORESOURCE_MEM;
654 else if (ares->data.address.resource_type == ACPI_IO_RANGE)
655 type = IORESOURCE_IO;
656 else if (ares->data.address.resource_type ==
657 ACPI_BUS_NUMBER_RANGE)
658 type = IORESOURCE_BUS;
659 break;
660 default:
661 break;
662 }
663
664 return (type & types) ? 0 : 1;
665}
666EXPORT_SYMBOL_GPL(acpi_dev_filter_resource_type);