1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * drivers/acpi/resource.c - ACPI device resources interpretation. |
4 | * |
5 | * Copyright (C) 2012, Intel Corp. |
6 | * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
7 | * |
8 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
9 | * |
10 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
11 | */ |
12 | |
13 | #include <linux/acpi.h> |
14 | #include <linux/device.h> |
15 | #include <linux/export.h> |
16 | #include <linux/ioport.h> |
17 | #include <linux/slab.h> |
18 | #include <linux/irq.h> |
19 | #include <linux/dmi.h> |
20 | |
21 | #ifdef CONFIG_X86 |
22 | #define valid_IRQ(i) (((i) != 0) && ((i) != 2)) |
23 | static inline bool acpi_iospace_resource_valid(struct resource *res) |
24 | { |
25 | /* On X86 IO space is limited to the [0 - 64K] IO port range */ |
26 | return res->end < 0x10003; |
27 | } |
28 | #else |
29 | #define valid_IRQ(i) (true) |
30 | /* |
31 | * ACPI IO descriptors on arches other than X86 contain MMIO CPU physical |
32 | * addresses mapping IO space in CPU physical address space, IO space |
33 | * resources can be placed anywhere in the 64-bit physical address space. |
34 | */ |
35 | static inline bool |
36 | acpi_iospace_resource_valid(struct resource *res) { return true; } |
37 | #endif |
38 | |
39 | #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) |
40 | static inline bool is_gsi(struct acpi_resource_extended_irq *ext_irq) |
41 | { |
42 | return ext_irq->resource_source.string_length == 0 && |
43 | ext_irq->producer_consumer == ACPI_CONSUMER; |
44 | } |
45 | #else |
46 | static inline bool is_gsi(struct acpi_resource_extended_irq *ext_irq) |
47 | { |
48 | return true; |
49 | } |
50 | #endif |
51 | |
52 | static bool acpi_dev_resource_len_valid(u64 start, u64 end, u64 len, bool io) |
53 | { |
54 | u64 reslen = end - start + 1; |
55 | |
56 | /* |
57 | * CHECKME: len might be required to check versus a minimum |
58 | * length as well. 1 for io is fine, but for memory it does |
59 | * not make any sense at all. |
60 | * Note: some BIOSes report incorrect length for ACPI address space |
61 | * descriptor, so remove check of 'reslen == len' to avoid regression. |
62 | */ |
63 | if (len && reslen && start <= end) |
64 | return true; |
65 | |
66 | pr_debug("ACPI: invalid or unassigned resource %s [%016llx - %016llx] length [%016llx]\n" , |
67 | io ? "io" : "mem" , start, end, len); |
68 | |
69 | return false; |
70 | } |
71 | |
72 | static void acpi_dev_memresource_flags(struct resource *res, u64 len, |
73 | u8 write_protect) |
74 | { |
75 | res->flags = IORESOURCE_MEM; |
76 | |
77 | if (!acpi_dev_resource_len_valid(start: res->start, end: res->end, len, io: false)) |
78 | res->flags |= IORESOURCE_DISABLED | IORESOURCE_UNSET; |
79 | |
80 | if (write_protect == ACPI_READ_WRITE_MEMORY) |
81 | res->flags |= IORESOURCE_MEM_WRITEABLE; |
82 | } |
83 | |
84 | static void acpi_dev_get_memresource(struct resource *res, u64 start, u64 len, |
85 | u8 write_protect) |
86 | { |
87 | res->start = start; |
88 | res->end = start + len - 1; |
89 | acpi_dev_memresource_flags(res, len, write_protect); |
90 | } |
91 | |
92 | /** |
93 | * acpi_dev_resource_memory - Extract ACPI memory resource information. |
94 | * @ares: Input ACPI resource object. |
95 | * @res: Output generic resource object. |
96 | * |
97 | * Check if the given ACPI resource object represents a memory resource and |
98 | * if that's the case, use the information in it to populate the generic |
99 | * resource object pointed to by @res. |
100 | * |
101 | * Return: |
102 | * 1) false with res->flags setting to zero: not the expected resource type |
103 | * 2) false with IORESOURCE_DISABLED in res->flags: valid unassigned resource |
104 | * 3) true: valid assigned resource |
105 | */ |
106 | bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res) |
107 | { |
108 | struct acpi_resource_memory24 *memory24; |
109 | struct acpi_resource_memory32 *memory32; |
110 | struct acpi_resource_fixed_memory32 *fixed_memory32; |
111 | |
112 | switch (ares->type) { |
113 | case ACPI_RESOURCE_TYPE_MEMORY24: |
114 | memory24 = &ares->data.memory24; |
115 | acpi_dev_get_memresource(res, start: memory24->minimum << 8, |
116 | len: memory24->address_length << 8, |
117 | write_protect: memory24->write_protect); |
118 | break; |
119 | case ACPI_RESOURCE_TYPE_MEMORY32: |
120 | memory32 = &ares->data.memory32; |
121 | acpi_dev_get_memresource(res, start: memory32->minimum, |
122 | len: memory32->address_length, |
123 | write_protect: memory32->write_protect); |
124 | break; |
125 | case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: |
126 | fixed_memory32 = &ares->data.fixed_memory32; |
127 | acpi_dev_get_memresource(res, start: fixed_memory32->address, |
128 | len: fixed_memory32->address_length, |
129 | write_protect: fixed_memory32->write_protect); |
130 | break; |
131 | default: |
132 | res->flags = 0; |
133 | return false; |
134 | } |
135 | |
136 | return !(res->flags & IORESOURCE_DISABLED); |
137 | } |
138 | EXPORT_SYMBOL_GPL(acpi_dev_resource_memory); |
139 | |
140 | static void acpi_dev_ioresource_flags(struct resource *res, u64 len, |
141 | u8 io_decode, u8 translation_type) |
142 | { |
143 | res->flags = IORESOURCE_IO; |
144 | |
145 | if (!acpi_dev_resource_len_valid(start: res->start, end: res->end, len, io: true)) |
146 | res->flags |= IORESOURCE_DISABLED | IORESOURCE_UNSET; |
147 | |
148 | if (!acpi_iospace_resource_valid(res)) |
149 | res->flags |= IORESOURCE_DISABLED | IORESOURCE_UNSET; |
150 | |
151 | if (io_decode == ACPI_DECODE_16) |
152 | res->flags |= IORESOURCE_IO_16BIT_ADDR; |
153 | if (translation_type == ACPI_SPARSE_TRANSLATION) |
154 | res->flags |= IORESOURCE_IO_SPARSE; |
155 | } |
156 | |
157 | static void acpi_dev_get_ioresource(struct resource *res, u64 start, u64 len, |
158 | u8 io_decode) |
159 | { |
160 | res->start = start; |
161 | res->end = start + len - 1; |
162 | acpi_dev_ioresource_flags(res, len, io_decode, translation_type: 0); |
163 | } |
164 | |
165 | /** |
166 | * acpi_dev_resource_io - Extract ACPI I/O resource information. |
167 | * @ares: Input ACPI resource object. |
168 | * @res: Output generic resource object. |
169 | * |
170 | * Check if the given ACPI resource object represents an I/O resource and |
171 | * if that's the case, use the information in it to populate the generic |
172 | * resource object pointed to by @res. |
173 | * |
174 | * Return: |
175 | * 1) false with res->flags setting to zero: not the expected resource type |
176 | * 2) false with IORESOURCE_DISABLED in res->flags: valid unassigned resource |
177 | * 3) true: valid assigned resource |
178 | */ |
179 | bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res) |
180 | { |
181 | struct acpi_resource_io *io; |
182 | struct acpi_resource_fixed_io *fixed_io; |
183 | |
184 | switch (ares->type) { |
185 | case ACPI_RESOURCE_TYPE_IO: |
186 | io = &ares->data.io; |
187 | acpi_dev_get_ioresource(res, start: io->minimum, |
188 | len: io->address_length, |
189 | io_decode: io->io_decode); |
190 | break; |
191 | case ACPI_RESOURCE_TYPE_FIXED_IO: |
192 | fixed_io = &ares->data.fixed_io; |
193 | acpi_dev_get_ioresource(res, start: fixed_io->address, |
194 | len: fixed_io->address_length, |
195 | ACPI_DECODE_10); |
196 | break; |
197 | default: |
198 | res->flags = 0; |
199 | return false; |
200 | } |
201 | |
202 | return !(res->flags & IORESOURCE_DISABLED); |
203 | } |
204 | EXPORT_SYMBOL_GPL(acpi_dev_resource_io); |
205 | |
206 | static bool acpi_decode_space(struct resource_win *win, |
207 | struct acpi_resource_address *addr, |
208 | struct acpi_address64_attribute *attr) |
209 | { |
210 | u8 iodec = attr->granularity == 0xfff ? ACPI_DECODE_10 : ACPI_DECODE_16; |
211 | bool wp = addr->info.mem.write_protect; |
212 | u64 len = attr->address_length; |
213 | u64 start, end, offset = 0; |
214 | struct resource *res = &win->res; |
215 | |
216 | /* |
217 | * Filter out invalid descriptor according to ACPI Spec 5.0, section |
218 | * 6.4.3.5 Address Space Resource Descriptors. |
219 | */ |
220 | if ((addr->min_address_fixed != addr->max_address_fixed && len) || |
221 | (addr->min_address_fixed && addr->max_address_fixed && !len)) |
222 | pr_debug("ACPI: Invalid address space min_addr_fix %d, max_addr_fix %d, len %llx\n" , |
223 | addr->min_address_fixed, addr->max_address_fixed, len); |
224 | |
225 | /* |
226 | * For bridges that translate addresses across the bridge, |
227 | * translation_offset is the offset that must be added to the |
228 | * address on the secondary side to obtain the address on the |
229 | * primary side. Non-bridge devices must list 0 for all Address |
230 | * Translation offset bits. |
231 | */ |
232 | if (addr->producer_consumer == ACPI_PRODUCER) |
233 | offset = attr->translation_offset; |
234 | else if (attr->translation_offset) |
235 | pr_debug("ACPI: translation_offset(%lld) is invalid for non-bridge device.\n" , |
236 | attr->translation_offset); |
237 | start = attr->minimum + offset; |
238 | end = attr->maximum + offset; |
239 | |
240 | win->offset = offset; |
241 | res->start = start; |
242 | res->end = end; |
243 | if (sizeof(resource_size_t) < sizeof(u64) && |
244 | (offset != win->offset || start != res->start || end != res->end)) { |
245 | pr_warn("acpi resource window ([%#llx-%#llx] ignored, not CPU addressable)\n" , |
246 | attr->minimum, attr->maximum); |
247 | return false; |
248 | } |
249 | |
250 | switch (addr->resource_type) { |
251 | case ACPI_MEMORY_RANGE: |
252 | acpi_dev_memresource_flags(res, len, write_protect: wp); |
253 | break; |
254 | case ACPI_IO_RANGE: |
255 | acpi_dev_ioresource_flags(res, len, io_decode: iodec, |
256 | translation_type: addr->info.io.translation_type); |
257 | break; |
258 | case ACPI_BUS_NUMBER_RANGE: |
259 | res->flags = IORESOURCE_BUS; |
260 | break; |
261 | default: |
262 | return false; |
263 | } |
264 | |
265 | if (addr->producer_consumer == ACPI_PRODUCER) |
266 | res->flags |= IORESOURCE_WINDOW; |
267 | |
268 | if (addr->info.mem.caching == ACPI_PREFETCHABLE_MEMORY) |
269 | res->flags |= IORESOURCE_PREFETCH; |
270 | |
271 | return !(res->flags & IORESOURCE_DISABLED); |
272 | } |
273 | |
274 | /** |
275 | * acpi_dev_resource_address_space - Extract ACPI address space information. |
276 | * @ares: Input ACPI resource object. |
277 | * @win: Output generic resource object. |
278 | * |
279 | * Check if the given ACPI resource object represents an address space resource |
280 | * and if that's the case, use the information in it to populate the generic |
281 | * resource object pointed to by @win. |
282 | * |
283 | * Return: |
284 | * 1) false with win->res.flags setting to zero: not the expected resource type |
285 | * 2) false with IORESOURCE_DISABLED in win->res.flags: valid unassigned |
286 | * resource |
287 | * 3) true: valid assigned resource |
288 | */ |
289 | bool acpi_dev_resource_address_space(struct acpi_resource *ares, |
290 | struct resource_win *win) |
291 | { |
292 | struct acpi_resource_address64 addr; |
293 | |
294 | win->res.flags = 0; |
295 | if (ACPI_FAILURE(acpi_resource_to_address64(ares, &addr))) |
296 | return false; |
297 | |
298 | return acpi_decode_space(win, addr: (struct acpi_resource_address *)&addr, |
299 | attr: &addr.address); |
300 | } |
301 | EXPORT_SYMBOL_GPL(acpi_dev_resource_address_space); |
302 | |
303 | /** |
304 | * acpi_dev_resource_ext_address_space - Extract ACPI address space information. |
305 | * @ares: Input ACPI resource object. |
306 | * @win: Output generic resource object. |
307 | * |
308 | * Check if the given ACPI resource object represents an extended address space |
309 | * resource and if that's the case, use the information in it to populate the |
310 | * generic resource object pointed to by @win. |
311 | * |
312 | * Return: |
313 | * 1) false with win->res.flags setting to zero: not the expected resource type |
314 | * 2) false with IORESOURCE_DISABLED in win->res.flags: valid unassigned |
315 | * resource |
316 | * 3) true: valid assigned resource |
317 | */ |
318 | bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, |
319 | struct resource_win *win) |
320 | { |
321 | struct acpi_resource_extended_address64 *ext_addr; |
322 | |
323 | win->res.flags = 0; |
324 | if (ares->type != ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64) |
325 | return false; |
326 | |
327 | ext_addr = &ares->data.ext_address64; |
328 | |
329 | return acpi_decode_space(win, addr: (struct acpi_resource_address *)ext_addr, |
330 | attr: &ext_addr->address); |
331 | } |
332 | EXPORT_SYMBOL_GPL(acpi_dev_resource_ext_address_space); |
333 | |
334 | /** |
335 | * acpi_dev_irq_flags - Determine IRQ resource flags. |
336 | * @triggering: Triggering type as provided by ACPI. |
337 | * @polarity: Interrupt polarity as provided by ACPI. |
338 | * @shareable: Whether or not the interrupt is shareable. |
339 | * @wake_capable: Wake capability as provided by ACPI. |
340 | */ |
341 | unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable) |
342 | { |
343 | unsigned long flags; |
344 | |
345 | if (triggering == ACPI_LEVEL_SENSITIVE) |
346 | flags = polarity == ACPI_ACTIVE_LOW ? |
347 | IORESOURCE_IRQ_LOWLEVEL : IORESOURCE_IRQ_HIGHLEVEL; |
348 | else |
349 | flags = polarity == ACPI_ACTIVE_LOW ? |
350 | IORESOURCE_IRQ_LOWEDGE : IORESOURCE_IRQ_HIGHEDGE; |
351 | |
352 | if (shareable == ACPI_SHARED) |
353 | flags |= IORESOURCE_IRQ_SHAREABLE; |
354 | |
355 | if (wake_capable == ACPI_WAKE_CAPABLE) |
356 | flags |= IORESOURCE_IRQ_WAKECAPABLE; |
357 | |
358 | return flags | IORESOURCE_IRQ; |
359 | } |
360 | EXPORT_SYMBOL_GPL(acpi_dev_irq_flags); |
361 | |
362 | /** |
363 | * acpi_dev_get_irq_type - Determine irq type. |
364 | * @triggering: Triggering type as provided by ACPI. |
365 | * @polarity: Interrupt polarity as provided by ACPI. |
366 | */ |
367 | unsigned int acpi_dev_get_irq_type(int triggering, int polarity) |
368 | { |
369 | switch (polarity) { |
370 | case ACPI_ACTIVE_LOW: |
371 | return triggering == ACPI_EDGE_SENSITIVE ? |
372 | IRQ_TYPE_EDGE_FALLING : |
373 | IRQ_TYPE_LEVEL_LOW; |
374 | case ACPI_ACTIVE_HIGH: |
375 | return triggering == ACPI_EDGE_SENSITIVE ? |
376 | IRQ_TYPE_EDGE_RISING : |
377 | IRQ_TYPE_LEVEL_HIGH; |
378 | case ACPI_ACTIVE_BOTH: |
379 | if (triggering == ACPI_EDGE_SENSITIVE) |
380 | return IRQ_TYPE_EDGE_BOTH; |
381 | fallthrough; |
382 | default: |
383 | return IRQ_TYPE_NONE; |
384 | } |
385 | } |
386 | EXPORT_SYMBOL_GPL(acpi_dev_get_irq_type); |
387 | |
388 | /* |
389 | * DMI matches for boards where the DSDT specifies the kbd IRQ as |
390 | * level active-low and using the override changes this to rising edge, |
391 | * stopping the keyboard from working. |
392 | */ |
393 | static const struct dmi_system_id irq1_level_low_skip_override[] = { |
394 | { |
395 | /* MEDION P15651 */ |
396 | .matches = { |
397 | DMI_MATCH(DMI_SYS_VENDOR, "MEDION" ), |
398 | DMI_MATCH(DMI_BOARD_NAME, "M15T" ), |
399 | }, |
400 | }, |
401 | { |
402 | /* MEDION S17405 */ |
403 | .matches = { |
404 | DMI_MATCH(DMI_SYS_VENDOR, "MEDION" ), |
405 | DMI_MATCH(DMI_BOARD_NAME, "M17T" ), |
406 | }, |
407 | }, |
408 | { |
409 | /* MEDION S17413 */ |
410 | .matches = { |
411 | DMI_MATCH(DMI_SYS_VENDOR, "MEDION" ), |
412 | DMI_MATCH(DMI_BOARD_NAME, "M1xA" ), |
413 | }, |
414 | }, |
415 | { |
416 | /* Asus Vivobook K3402ZA */ |
417 | .matches = { |
418 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC." ), |
419 | DMI_MATCH(DMI_BOARD_NAME, "K3402ZA" ), |
420 | }, |
421 | }, |
422 | { |
423 | /* Asus Vivobook K3502ZA */ |
424 | .matches = { |
425 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC." ), |
426 | DMI_MATCH(DMI_BOARD_NAME, "K3502ZA" ), |
427 | }, |
428 | }, |
429 | { |
430 | /* Asus Vivobook S5402ZA */ |
431 | .matches = { |
432 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC." ), |
433 | DMI_MATCH(DMI_BOARD_NAME, "S5402ZA" ), |
434 | }, |
435 | }, |
436 | { |
437 | /* Asus Vivobook S5602ZA */ |
438 | .matches = { |
439 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC." ), |
440 | DMI_MATCH(DMI_BOARD_NAME, "S5602ZA" ), |
441 | }, |
442 | }, |
443 | { |
444 | /* Asus ExpertBook B1402CBA */ |
445 | .matches = { |
446 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC." ), |
447 | DMI_MATCH(DMI_BOARD_NAME, "B1402CBA" ), |
448 | }, |
449 | }, |
450 | { |
451 | /* Asus ExpertBook B1402CVA */ |
452 | .matches = { |
453 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC." ), |
454 | DMI_MATCH(DMI_BOARD_NAME, "B1402CVA" ), |
455 | }, |
456 | }, |
457 | { |
458 | /* Asus ExpertBook B1502CBA */ |
459 | .matches = { |
460 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC." ), |
461 | DMI_MATCH(DMI_BOARD_NAME, "B1502CBA" ), |
462 | }, |
463 | }, |
464 | { |
465 | /* Asus ExpertBook B1502CGA */ |
466 | .matches = { |
467 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC." ), |
468 | DMI_MATCH(DMI_BOARD_NAME, "B1502CGA" ), |
469 | }, |
470 | }, |
471 | { |
472 | /* Asus ExpertBook B1502CVA */ |
473 | .matches = { |
474 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC." ), |
475 | DMI_MATCH(DMI_BOARD_NAME, "B1502CVA" ), |
476 | }, |
477 | }, |
478 | { |
479 | /* Asus ExpertBook B2402CBA */ |
480 | .matches = { |
481 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC." ), |
482 | DMI_MATCH(DMI_BOARD_NAME, "B2402CBA" ), |
483 | }, |
484 | }, |
485 | { |
486 | /* Asus ExpertBook B2402FBA */ |
487 | .matches = { |
488 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC." ), |
489 | DMI_MATCH(DMI_BOARD_NAME, "B2402FBA" ), |
490 | }, |
491 | }, |
492 | { |
493 | /* Asus ExpertBook B2502 */ |
494 | .matches = { |
495 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC." ), |
496 | DMI_MATCH(DMI_BOARD_NAME, "B2502CBA" ), |
497 | }, |
498 | }, |
499 | { |
500 | /* Asus ExpertBook B2502FBA */ |
501 | .matches = { |
502 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC." ), |
503 | DMI_MATCH(DMI_BOARD_NAME, "B2502FBA" ), |
504 | }, |
505 | }, |
506 | { |
507 | /* Asus Vivobook E1504GA */ |
508 | .matches = { |
509 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC." ), |
510 | DMI_MATCH(DMI_BOARD_NAME, "E1504GA" ), |
511 | }, |
512 | }, |
513 | { |
514 | /* Asus Vivobook E1504GAB */ |
515 | .matches = { |
516 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC." ), |
517 | DMI_MATCH(DMI_BOARD_NAME, "E1504GAB" ), |
518 | }, |
519 | }, |
520 | { |
521 | /* LG Electronics 17U70P */ |
522 | .matches = { |
523 | DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics" ), |
524 | DMI_MATCH(DMI_BOARD_NAME, "17U70P" ), |
525 | }, |
526 | }, |
527 | { } |
528 | }; |
529 | |
530 | /* |
531 | * DMI matches for AMD Zen boards where the DSDT specifies the kbd IRQ |
532 | * as falling edge and this must be overridden to rising edge, |
533 | * to have a working keyboard. |
534 | */ |
535 | static const struct dmi_system_id irq1_edge_low_force_override[] = { |
536 | { |
537 | /* TongFang GMxRGxx/XMG CORE 15 (M22)/TUXEDO Stellaris 15 Gen4 AMD */ |
538 | .matches = { |
539 | DMI_MATCH(DMI_BOARD_NAME, "GMxRGxx" ), |
540 | }, |
541 | }, |
542 | { |
543 | /* TongFang GMxXGxx/TUXEDO Polaris 15 Gen5 AMD */ |
544 | .matches = { |
545 | DMI_MATCH(DMI_BOARD_NAME, "GMxXGxx" ), |
546 | }, |
547 | }, |
548 | { |
549 | /* TongFang GMxXGxx sold as Eluktronics Inc. RP-15 */ |
550 | .matches = { |
551 | DMI_MATCH(DMI_SYS_VENDOR, "Eluktronics Inc." ), |
552 | DMI_MATCH(DMI_BOARD_NAME, "RP-15" ), |
553 | }, |
554 | }, |
555 | { |
556 | /* TongFang GM6XGxX/TUXEDO Stellaris 16 Gen5 AMD */ |
557 | .matches = { |
558 | DMI_MATCH(DMI_BOARD_NAME, "GM6XGxX" ), |
559 | }, |
560 | }, |
561 | { |
562 | /* MAINGEAR Vector Pro 2 15 */ |
563 | .matches = { |
564 | DMI_MATCH(DMI_SYS_VENDOR, "Micro Electronics Inc" ), |
565 | DMI_MATCH(DMI_PRODUCT_NAME, "MG-VCP2-15A3070T" ), |
566 | } |
567 | }, |
568 | { |
569 | /* MAINGEAR Vector Pro 2 17 */ |
570 | .matches = { |
571 | DMI_MATCH(DMI_SYS_VENDOR, "Micro Electronics Inc" ), |
572 | DMI_MATCH(DMI_PRODUCT_NAME, "MG-VCP2-17A3070T" ), |
573 | }, |
574 | }, |
575 | { |
576 | /* TongFang GM6BGEQ / PCSpecialist Elimina Pro 16 M, RTX 3050 */ |
577 | .matches = { |
578 | DMI_MATCH(DMI_BOARD_NAME, "GM6BGEQ" ), |
579 | }, |
580 | }, |
581 | { |
582 | /* TongFang GM6BG5Q, RTX 4050 */ |
583 | .matches = { |
584 | DMI_MATCH(DMI_BOARD_NAME, "GM6BG5Q" ), |
585 | }, |
586 | }, |
587 | { |
588 | /* TongFang GM6BG0Q / PCSpecialist Elimina Pro 16 M, RTX 4060 */ |
589 | .matches = { |
590 | DMI_MATCH(DMI_BOARD_NAME, "GM6BG0Q" ), |
591 | }, |
592 | }, |
593 | { |
594 | /* Infinity E15-5A165-BM */ |
595 | .matches = { |
596 | DMI_MATCH(DMI_BOARD_NAME, "GM5RG1E0009COM" ), |
597 | }, |
598 | }, |
599 | { |
600 | /* Infinity E15-5A305-1M */ |
601 | .matches = { |
602 | DMI_MATCH(DMI_BOARD_NAME, "GM5RGEE0016COM" ), |
603 | }, |
604 | }, |
605 | { |
606 | /* Lunnen Ground 15 / AMD Ryzen 5 5500U */ |
607 | .matches = { |
608 | DMI_MATCH(DMI_SYS_VENDOR, "Lunnen" ), |
609 | DMI_MATCH(DMI_BOARD_NAME, "LLL5DAW" ), |
610 | }, |
611 | }, |
612 | { |
613 | /* Lunnen Ground 16 / AMD Ryzen 7 5800U */ |
614 | .matches = { |
615 | DMI_MATCH(DMI_SYS_VENDOR, "Lunnen" ), |
616 | DMI_MATCH(DMI_BOARD_NAME, "LL6FA" ), |
617 | }, |
618 | }, |
619 | { |
620 | /* MAIBENBEN X577 */ |
621 | .matches = { |
622 | DMI_MATCH(DMI_SYS_VENDOR, "MAIBENBEN" ), |
623 | DMI_MATCH(DMI_BOARD_NAME, "X577" ), |
624 | }, |
625 | }, |
626 | { |
627 | /* Maibenben X565 */ |
628 | .matches = { |
629 | DMI_MATCH(DMI_SYS_VENDOR, "MAIBENBEN" ), |
630 | DMI_MATCH(DMI_BOARD_NAME, "X565" ), |
631 | }, |
632 | }, |
633 | { } |
634 | }; |
635 | |
636 | struct irq_override_cmp { |
637 | const struct dmi_system_id *system; |
638 | unsigned char irq; |
639 | unsigned char triggering; |
640 | unsigned char polarity; |
641 | unsigned char shareable; |
642 | bool override; |
643 | }; |
644 | |
645 | static const struct irq_override_cmp override_table[] = { |
646 | { irq1_level_low_skip_override, 1, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW, 0, false }, |
647 | { irq1_edge_low_force_override, 1, ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_LOW, 1, true }, |
648 | }; |
649 | |
650 | static bool acpi_dev_irq_override(u32 gsi, u8 triggering, u8 polarity, |
651 | u8 shareable) |
652 | { |
653 | int i; |
654 | |
655 | for (i = 0; i < ARRAY_SIZE(override_table); i++) { |
656 | const struct irq_override_cmp *entry = &override_table[i]; |
657 | |
658 | if (dmi_check_system(list: entry->system) && |
659 | entry->irq == gsi && |
660 | entry->triggering == triggering && |
661 | entry->polarity == polarity && |
662 | entry->shareable == shareable) |
663 | return entry->override; |
664 | } |
665 | |
666 | #ifdef CONFIG_X86 |
667 | /* |
668 | * Always use the MADT override info, except for the i8042 PS/2 ctrl |
669 | * IRQs (1 and 12). For these the DSDT IRQ settings should sometimes |
670 | * be used otherwise PS/2 keyboards / mice will not work. |
671 | */ |
672 | if (gsi != 1 && gsi != 12) |
673 | return true; |
674 | |
675 | /* If the override comes from an INT_SRC_OVR MADT entry, honor it. */ |
676 | if (acpi_int_src_ovr[gsi]) |
677 | return true; |
678 | |
679 | /* |
680 | * IRQ override isn't needed on modern AMD Zen systems and |
681 | * this override breaks active low IRQs on AMD Ryzen 6000 and |
682 | * newer systems. Skip it. |
683 | */ |
684 | if (boot_cpu_has(X86_FEATURE_ZEN)) |
685 | return false; |
686 | #endif |
687 | |
688 | return true; |
689 | } |
690 | |
691 | static void acpi_dev_get_irqresource(struct resource *res, u32 gsi, |
692 | u8 triggering, u8 polarity, u8 shareable, |
693 | u8 wake_capable, bool check_override) |
694 | { |
695 | int irq, p, t; |
696 | |
697 | if (!valid_IRQ(gsi)) { |
698 | irqresource_disabled(res, irq: gsi); |
699 | return; |
700 | } |
701 | |
702 | /* |
703 | * In IO-APIC mode, use overridden attribute. Two reasons: |
704 | * 1. BIOS bug in DSDT |
705 | * 2. BIOS uses IO-APIC mode Interrupt Source Override |
706 | * |
707 | * We do this only if we are dealing with IRQ() or IRQNoFlags() |
708 | * resource (the legacy ISA resources). With modern ACPI 5 devices |
709 | * using extended IRQ descriptors we take the IRQ configuration |
710 | * from _CRS directly. |
711 | */ |
712 | if (check_override && |
713 | acpi_dev_irq_override(gsi, triggering, polarity, shareable) && |
714 | !acpi_get_override_irq(gsi, trigger: &t, polarity: &p)) { |
715 | u8 trig = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE; |
716 | u8 pol = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH; |
717 | |
718 | if (triggering != trig || polarity != pol) { |
719 | pr_warn("ACPI: IRQ %d override to %s%s, %s%s\n" , gsi, |
720 | t ? "level" : "edge" , |
721 | trig == triggering ? "" : "(!)" , |
722 | p ? "low" : "high" , |
723 | pol == polarity ? "" : "(!)" ); |
724 | triggering = trig; |
725 | polarity = pol; |
726 | } |
727 | } |
728 | |
729 | res->flags = acpi_dev_irq_flags(triggering, polarity, shareable, wake_capable); |
730 | irq = acpi_register_gsi(NULL, gsi, triggering, polarity); |
731 | if (irq >= 0) { |
732 | res->start = irq; |
733 | res->end = irq; |
734 | } else { |
735 | irqresource_disabled(res, irq: gsi); |
736 | } |
737 | } |
738 | |
739 | /** |
740 | * acpi_dev_resource_interrupt - Extract ACPI interrupt resource information. |
741 | * @ares: Input ACPI resource object. |
742 | * @index: Index into the array of GSIs represented by the resource. |
743 | * @res: Output generic resource object. |
744 | * |
745 | * Check if the given ACPI resource object represents an interrupt resource |
746 | * and @index does not exceed the resource's interrupt count (true is returned |
747 | * in that case regardless of the results of the other checks)). If that's the |
748 | * case, register the GSI corresponding to @index from the array of interrupts |
749 | * represented by the resource and populate the generic resource object pointed |
750 | * to by @res accordingly. If the registration of the GSI is not successful, |
751 | * IORESOURCE_DISABLED will be set it that object's flags. |
752 | * |
753 | * Return: |
754 | * 1) false with res->flags setting to zero: not the expected resource type |
755 | * 2) false with IORESOURCE_DISABLED in res->flags: valid unassigned resource |
756 | * 3) true: valid assigned resource |
757 | */ |
758 | bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, |
759 | struct resource *res) |
760 | { |
761 | struct acpi_resource_irq *irq; |
762 | struct acpi_resource_extended_irq *ext_irq; |
763 | |
764 | switch (ares->type) { |
765 | case ACPI_RESOURCE_TYPE_IRQ: |
766 | /* |
767 | * Per spec, only one interrupt per descriptor is allowed in |
768 | * _CRS, but some firmware violates this, so parse them all. |
769 | */ |
770 | irq = &ares->data.irq; |
771 | if (index >= irq->interrupt_count) { |
772 | irqresource_disabled(res, irq: 0); |
773 | return false; |
774 | } |
775 | acpi_dev_get_irqresource(res, gsi: irq->interrupts[index], |
776 | triggering: irq->triggering, polarity: irq->polarity, |
777 | shareable: irq->shareable, wake_capable: irq->wake_capable, |
778 | check_override: true); |
779 | break; |
780 | case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: |
781 | ext_irq = &ares->data.extended_irq; |
782 | if (index >= ext_irq->interrupt_count) { |
783 | irqresource_disabled(res, irq: 0); |
784 | return false; |
785 | } |
786 | if (is_gsi(ext_irq)) |
787 | acpi_dev_get_irqresource(res, gsi: ext_irq->interrupts[index], |
788 | triggering: ext_irq->triggering, polarity: ext_irq->polarity, |
789 | shareable: ext_irq->shareable, wake_capable: ext_irq->wake_capable, |
790 | check_override: false); |
791 | else |
792 | irqresource_disabled(res, irq: 0); |
793 | break; |
794 | default: |
795 | res->flags = 0; |
796 | return false; |
797 | } |
798 | |
799 | return true; |
800 | } |
801 | EXPORT_SYMBOL_GPL(acpi_dev_resource_interrupt); |
802 | |
803 | /** |
804 | * acpi_dev_free_resource_list - Free resource from %acpi_dev_get_resources(). |
805 | * @list: The head of the resource list to free. |
806 | */ |
807 | void acpi_dev_free_resource_list(struct list_head *list) |
808 | { |
809 | resource_list_free(head: list); |
810 | } |
811 | EXPORT_SYMBOL_GPL(acpi_dev_free_resource_list); |
812 | |
813 | struct res_proc_context { |
814 | struct list_head *list; |
815 | int (*preproc)(struct acpi_resource *, void *); |
816 | void *preproc_data; |
817 | int count; |
818 | int error; |
819 | }; |
820 | |
821 | static acpi_status acpi_dev_new_resource_entry(struct resource_win *win, |
822 | struct res_proc_context *c) |
823 | { |
824 | struct resource_entry *rentry; |
825 | |
826 | rentry = resource_list_create_entry(NULL, extra_size: 0); |
827 | if (!rentry) { |
828 | c->error = -ENOMEM; |
829 | return AE_NO_MEMORY; |
830 | } |
831 | *rentry->res = win->res; |
832 | rentry->offset = win->offset; |
833 | resource_list_add_tail(entry: rentry, head: c->list); |
834 | c->count++; |
835 | return AE_OK; |
836 | } |
837 | |
838 | static acpi_status acpi_dev_process_resource(struct acpi_resource *ares, |
839 | void *context) |
840 | { |
841 | struct res_proc_context *c = context; |
842 | struct resource_win win; |
843 | struct resource *res = &win.res; |
844 | int i; |
845 | |
846 | if (c->preproc) { |
847 | int ret; |
848 | |
849 | ret = c->preproc(ares, c->preproc_data); |
850 | if (ret < 0) { |
851 | c->error = ret; |
852 | return AE_ABORT_METHOD; |
853 | } else if (ret > 0) { |
854 | return AE_OK; |
855 | } |
856 | } |
857 | |
858 | memset(&win, 0, sizeof(win)); |
859 | |
860 | if (acpi_dev_resource_memory(ares, res) |
861 | || acpi_dev_resource_io(ares, res) |
862 | || acpi_dev_resource_address_space(ares, &win) |
863 | || acpi_dev_resource_ext_address_space(ares, &win)) |
864 | return acpi_dev_new_resource_entry(win: &win, c); |
865 | |
866 | for (i = 0; acpi_dev_resource_interrupt(ares, i, res); i++) { |
867 | acpi_status status; |
868 | |
869 | status = acpi_dev_new_resource_entry(win: &win, c); |
870 | if (ACPI_FAILURE(status)) |
871 | return status; |
872 | } |
873 | |
874 | return AE_OK; |
875 | } |
876 | |
877 | static int __acpi_dev_get_resources(struct acpi_device *adev, |
878 | struct list_head *list, |
879 | int (*preproc)(struct acpi_resource *, void *), |
880 | void *preproc_data, char *method) |
881 | { |
882 | struct res_proc_context c; |
883 | acpi_status status; |
884 | |
885 | if (!adev || !adev->handle || !list_empty(head: list)) |
886 | return -EINVAL; |
887 | |
888 | if (!acpi_has_method(handle: adev->handle, name: method)) |
889 | return 0; |
890 | |
891 | c.list = list; |
892 | c.preproc = preproc; |
893 | c.preproc_data = preproc_data; |
894 | c.count = 0; |
895 | c.error = 0; |
896 | status = acpi_walk_resources(device: adev->handle, name: method, |
897 | user_function: acpi_dev_process_resource, context: &c); |
898 | if (ACPI_FAILURE(status)) { |
899 | acpi_dev_free_resource_list(list); |
900 | return c.error ? c.error : -EIO; |
901 | } |
902 | |
903 | return c.count; |
904 | } |
905 | |
906 | /** |
907 | * acpi_dev_get_resources - Get current resources of a device. |
908 | * @adev: ACPI device node to get the resources for. |
909 | * @list: Head of the resultant list of resources (must be empty). |
910 | * @preproc: The caller's preprocessing routine. |
911 | * @preproc_data: Pointer passed to the caller's preprocessing routine. |
912 | * |
913 | * Evaluate the _CRS method for the given device node and process its output by |
914 | * (1) executing the @preproc() routine provided by the caller, passing the |
915 | * resource pointer and @preproc_data to it as arguments, for each ACPI resource |
916 | * returned and (2) converting all of the returned ACPI resources into struct |
917 | * resource objects if possible. If the return value of @preproc() in step (1) |
918 | * is different from 0, step (2) is not applied to the given ACPI resource and |
919 | * if that value is negative, the whole processing is aborted and that value is |
920 | * returned as the final error code. |
921 | * |
922 | * The resultant struct resource objects are put on the list pointed to by |
923 | * @list, that must be empty initially, as members of struct resource_entry |
924 | * objects. Callers of this routine should use %acpi_dev_free_resource_list() to |
925 | * free that list. |
926 | * |
927 | * The number of resources in the output list is returned on success, an error |
928 | * code reflecting the error condition is returned otherwise. |
929 | */ |
930 | int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, |
931 | int (*preproc)(struct acpi_resource *, void *), |
932 | void *preproc_data) |
933 | { |
934 | return __acpi_dev_get_resources(adev, list, preproc, preproc_data, |
935 | METHOD_NAME__CRS); |
936 | } |
937 | EXPORT_SYMBOL_GPL(acpi_dev_get_resources); |
938 | |
939 | static int is_memory(struct acpi_resource *ares, void *not_used) |
940 | { |
941 | struct resource_win win; |
942 | struct resource *res = &win.res; |
943 | |
944 | memset(&win, 0, sizeof(win)); |
945 | |
946 | if (acpi_dev_filter_resource_type(ares, IORESOURCE_MEM)) |
947 | return 1; |
948 | |
949 | return !(acpi_dev_resource_memory(ares, res) |
950 | || acpi_dev_resource_address_space(ares, &win) |
951 | || acpi_dev_resource_ext_address_space(ares, &win)); |
952 | } |
953 | |
954 | /** |
955 | * acpi_dev_get_dma_resources - Get current DMA resources of a device. |
956 | * @adev: ACPI device node to get the resources for. |
957 | * @list: Head of the resultant list of resources (must be empty). |
958 | * |
959 | * Evaluate the _DMA method for the given device node and process its |
960 | * output. |
961 | * |
962 | * The resultant struct resource objects are put on the list pointed to |
963 | * by @list, that must be empty initially, as members of struct |
964 | * resource_entry objects. Callers of this routine should use |
965 | * %acpi_dev_free_resource_list() to free that list. |
966 | * |
967 | * The number of resources in the output list is returned on success, |
968 | * an error code reflecting the error condition is returned otherwise. |
969 | */ |
970 | int acpi_dev_get_dma_resources(struct acpi_device *adev, struct list_head *list) |
971 | { |
972 | return __acpi_dev_get_resources(adev, list, preproc: is_memory, NULL, |
973 | METHOD_NAME__DMA); |
974 | } |
975 | EXPORT_SYMBOL_GPL(acpi_dev_get_dma_resources); |
976 | |
977 | /** |
978 | * acpi_dev_get_memory_resources - Get current memory resources of a device. |
979 | * @adev: ACPI device node to get the resources for. |
980 | * @list: Head of the resultant list of resources (must be empty). |
981 | * |
982 | * This is a helper function that locates all memory type resources of @adev |
983 | * with acpi_dev_get_resources(). |
984 | * |
985 | * The number of resources in the output list is returned on success, an error |
986 | * code reflecting the error condition is returned otherwise. |
987 | */ |
988 | int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list) |
989 | { |
990 | return acpi_dev_get_resources(adev, list, is_memory, NULL); |
991 | } |
992 | EXPORT_SYMBOL_GPL(acpi_dev_get_memory_resources); |
993 | |
994 | /** |
995 | * acpi_dev_filter_resource_type - Filter ACPI resource according to resource |
996 | * types |
997 | * @ares: Input ACPI resource object. |
998 | * @types: Valid resource types of IORESOURCE_XXX |
999 | * |
1000 | * This is a helper function to support acpi_dev_get_resources(), which filters |
1001 | * ACPI resource objects according to resource types. |
1002 | */ |
1003 | int acpi_dev_filter_resource_type(struct acpi_resource *ares, |
1004 | unsigned long types) |
1005 | { |
1006 | unsigned long type = 0; |
1007 | |
1008 | switch (ares->type) { |
1009 | case ACPI_RESOURCE_TYPE_MEMORY24: |
1010 | case ACPI_RESOURCE_TYPE_MEMORY32: |
1011 | case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: |
1012 | type = IORESOURCE_MEM; |
1013 | break; |
1014 | case ACPI_RESOURCE_TYPE_IO: |
1015 | case ACPI_RESOURCE_TYPE_FIXED_IO: |
1016 | type = IORESOURCE_IO; |
1017 | break; |
1018 | case ACPI_RESOURCE_TYPE_IRQ: |
1019 | case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: |
1020 | type = IORESOURCE_IRQ; |
1021 | break; |
1022 | case ACPI_RESOURCE_TYPE_DMA: |
1023 | case ACPI_RESOURCE_TYPE_FIXED_DMA: |
1024 | type = IORESOURCE_DMA; |
1025 | break; |
1026 | case ACPI_RESOURCE_TYPE_GENERIC_REGISTER: |
1027 | type = IORESOURCE_REG; |
1028 | break; |
1029 | case ACPI_RESOURCE_TYPE_ADDRESS16: |
1030 | case ACPI_RESOURCE_TYPE_ADDRESS32: |
1031 | case ACPI_RESOURCE_TYPE_ADDRESS64: |
1032 | case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64: |
1033 | if (ares->data.address.resource_type == ACPI_MEMORY_RANGE) |
1034 | type = IORESOURCE_MEM; |
1035 | else if (ares->data.address.resource_type == ACPI_IO_RANGE) |
1036 | type = IORESOURCE_IO; |
1037 | else if (ares->data.address.resource_type == |
1038 | ACPI_BUS_NUMBER_RANGE) |
1039 | type = IORESOURCE_BUS; |
1040 | break; |
1041 | default: |
1042 | break; |
1043 | } |
1044 | |
1045 | return (type & types) ? 0 : 1; |
1046 | } |
1047 | EXPORT_SYMBOL_GPL(acpi_dev_filter_resource_type); |
1048 | |
1049 | static int acpi_dev_consumes_res(struct acpi_device *adev, struct resource *res) |
1050 | { |
1051 | struct list_head resource_list; |
1052 | struct resource_entry *rentry; |
1053 | int ret, found = 0; |
1054 | |
1055 | INIT_LIST_HEAD(list: &resource_list); |
1056 | ret = acpi_dev_get_resources(adev, &resource_list, NULL, NULL); |
1057 | if (ret < 0) |
1058 | return 0; |
1059 | |
1060 | list_for_each_entry(rentry, &resource_list, node) { |
1061 | if (resource_contains(r1: rentry->res, r2: res)) { |
1062 | found = 1; |
1063 | break; |
1064 | } |
1065 | |
1066 | } |
1067 | |
1068 | acpi_dev_free_resource_list(&resource_list); |
1069 | return found; |
1070 | } |
1071 | |
1072 | static acpi_status acpi_res_consumer_cb(acpi_handle handle, u32 depth, |
1073 | void *context, void **ret) |
1074 | { |
1075 | struct resource *res = context; |
1076 | struct acpi_device **consumer = (struct acpi_device **) ret; |
1077 | struct acpi_device *adev = acpi_fetch_acpi_dev(handle); |
1078 | |
1079 | if (!adev) |
1080 | return AE_OK; |
1081 | |
1082 | if (acpi_dev_consumes_res(adev, res)) { |
1083 | *consumer = adev; |
1084 | return AE_CTRL_TERMINATE; |
1085 | } |
1086 | |
1087 | return AE_OK; |
1088 | } |
1089 | |
1090 | /** |
1091 | * acpi_resource_consumer - Find the ACPI device that consumes @res. |
1092 | * @res: Resource to search for. |
1093 | * |
1094 | * Search the current resource settings (_CRS) of every ACPI device node |
1095 | * for @res. If we find an ACPI device whose _CRS includes @res, return |
1096 | * it. Otherwise, return NULL. |
1097 | */ |
1098 | struct acpi_device *acpi_resource_consumer(struct resource *res) |
1099 | { |
1100 | struct acpi_device *consumer = NULL; |
1101 | |
1102 | acpi_get_devices(NULL, user_function: acpi_res_consumer_cb, context: res, return_value: (void **) &consumer); |
1103 | return consumer; |
1104 | } |
1105 | |