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1da177e4 LT |
1 | /* |
2 | * boot.c - Architecture-Specific Low-Level ACPI Boot Support | |
3 | * | |
4 | * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> | |
5 | * Copyright (C) 2001 Jun Nakajima <jun.nakajima@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 as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | * | |
23 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
24 | */ | |
25 | ||
26 | #include <linux/init.h> | |
27 | #include <linux/config.h> | |
28 | #include <linux/acpi.h> | |
29 | #include <linux/efi.h> | |
30 | #include <linux/irq.h> | |
31 | #include <linux/module.h> | |
aea00143 | 32 | #include <linux/dmi.h> |
1da177e4 LT |
33 | |
34 | #include <asm/pgtable.h> | |
35 | #include <asm/io_apic.h> | |
36 | #include <asm/apic.h> | |
37 | #include <asm/io.h> | |
38 | #include <asm/irq.h> | |
39 | #include <asm/mpspec.h> | |
40 | ||
41 | #ifdef CONFIG_X86_64 | |
42 | ||
43 | static inline void acpi_madt_oem_check(char *oem_id, char *oem_table_id) { } | |
44 | extern void __init clustered_apic_check(void); | |
45 | static inline int ioapic_setup_disabled(void) { return 0; } | |
46 | #include <asm/proto.h> | |
47 | ||
48 | #else /* X86 */ | |
49 | ||
50 | #ifdef CONFIG_X86_LOCAL_APIC | |
51 | #include <mach_apic.h> | |
52 | #include <mach_mpparse.h> | |
53 | #endif /* CONFIG_X86_LOCAL_APIC */ | |
54 | ||
55 | #endif /* X86 */ | |
56 | ||
57 | #define BAD_MADT_ENTRY(entry, end) ( \ | |
58 | (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ | |
59 | ((acpi_table_entry_header *)entry)->length != sizeof(*entry)) | |
60 | ||
61 | #define PREFIX "ACPI: " | |
62 | ||
63 | #ifdef CONFIG_ACPI_PCI | |
64 | int acpi_noirq __initdata; /* skip ACPI IRQ initialization */ | |
65 | int acpi_pci_disabled __initdata; /* skip ACPI PCI scan and IRQ initialization */ | |
66 | #else | |
67 | int acpi_noirq __initdata = 1; | |
68 | int acpi_pci_disabled __initdata = 1; | |
69 | #endif | |
70 | int acpi_ht __initdata = 1; /* enable HT */ | |
71 | ||
72 | int acpi_lapic; | |
73 | int acpi_ioapic; | |
74 | int acpi_strict; | |
75 | EXPORT_SYMBOL(acpi_strict); | |
76 | ||
77 | acpi_interrupt_flags acpi_sci_flags __initdata; | |
78 | int acpi_sci_override_gsi __initdata; | |
79 | int acpi_skip_timer_override __initdata; | |
80 | ||
81 | #ifdef CONFIG_X86_LOCAL_APIC | |
82 | static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; | |
83 | #endif | |
84 | ||
85 | #ifndef __HAVE_ARCH_CMPXCHG | |
86 | #warning ACPI uses CMPXCHG, i486 and later hardware | |
87 | #endif | |
88 | ||
89 | #define MAX_MADT_ENTRIES 256 | |
90 | u8 x86_acpiid_to_apicid[MAX_MADT_ENTRIES] = | |
91 | { [0 ... MAX_MADT_ENTRIES-1] = 0xff }; | |
92 | EXPORT_SYMBOL(x86_acpiid_to_apicid); | |
93 | ||
94 | /* -------------------------------------------------------------------------- | |
95 | Boot-time Configuration | |
96 | -------------------------------------------------------------------------- */ | |
97 | ||
98 | /* | |
99 | * The default interrupt routing model is PIC (8259). This gets | |
100 | * overriden if IOAPICs are enumerated (below). | |
101 | */ | |
102 | enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC; | |
103 | ||
104 | #ifdef CONFIG_X86_64 | |
105 | ||
106 | /* rely on all ACPI tables being in the direct mapping */ | |
107 | char *__acpi_map_table(unsigned long phys_addr, unsigned long size) | |
108 | { | |
109 | if (!phys_addr || !size) | |
110 | return NULL; | |
111 | ||
112 | if (phys_addr < (end_pfn_map << PAGE_SHIFT)) | |
113 | return __va(phys_addr); | |
114 | ||
115 | return NULL; | |
116 | } | |
117 | ||
118 | #else | |
119 | ||
120 | /* | |
121 | * Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END, | |
122 | * to map the target physical address. The problem is that set_fixmap() | |
123 | * provides a single page, and it is possible that the page is not | |
124 | * sufficient. | |
125 | * By using this area, we can map up to MAX_IO_APICS pages temporarily, | |
126 | * i.e. until the next __va_range() call. | |
127 | * | |
128 | * Important Safety Note: The fixed I/O APIC page numbers are *subtracted* | |
129 | * from the fixed base. That's why we start at FIX_IO_APIC_BASE_END and | |
130 | * count idx down while incrementing the phys address. | |
131 | */ | |
132 | char *__acpi_map_table(unsigned long phys, unsigned long size) | |
133 | { | |
134 | unsigned long base, offset, mapped_size; | |
135 | int idx; | |
136 | ||
137 | if (phys + size < 8*1024*1024) | |
138 | return __va(phys); | |
139 | ||
140 | offset = phys & (PAGE_SIZE - 1); | |
141 | mapped_size = PAGE_SIZE - offset; | |
142 | set_fixmap(FIX_ACPI_END, phys); | |
143 | base = fix_to_virt(FIX_ACPI_END); | |
144 | ||
145 | /* | |
146 | * Most cases can be covered by the below. | |
147 | */ | |
148 | idx = FIX_ACPI_END; | |
149 | while (mapped_size < size) { | |
150 | if (--idx < FIX_ACPI_BEGIN) | |
151 | return NULL; /* cannot handle this */ | |
152 | phys += PAGE_SIZE; | |
153 | set_fixmap(idx, phys); | |
154 | mapped_size += PAGE_SIZE; | |
155 | } | |
156 | ||
157 | return ((unsigned char *) base + offset); | |
158 | } | |
159 | #endif | |
160 | ||
161 | #ifdef CONFIG_PCI_MMCONFIG | |
162 | static int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size) | |
163 | { | |
164 | struct acpi_table_mcfg *mcfg; | |
165 | ||
166 | if (!phys_addr || !size) | |
167 | return -EINVAL; | |
168 | ||
169 | mcfg = (struct acpi_table_mcfg *) __acpi_map_table(phys_addr, size); | |
170 | if (!mcfg) { | |
171 | printk(KERN_WARNING PREFIX "Unable to map MCFG\n"); | |
172 | return -ENODEV; | |
173 | } | |
174 | ||
175 | if (mcfg->base_reserved) { | |
176 | printk(KERN_ERR PREFIX "MMCONFIG not in low 4GB of memory\n"); | |
177 | return -ENODEV; | |
178 | } | |
179 | ||
180 | pci_mmcfg_base_addr = mcfg->base_address; | |
181 | ||
182 | return 0; | |
183 | } | |
184 | #else | |
185 | #define acpi_parse_mcfg NULL | |
186 | #endif /* !CONFIG_PCI_MMCONFIG */ | |
187 | ||
188 | #ifdef CONFIG_X86_LOCAL_APIC | |
189 | static int __init | |
190 | acpi_parse_madt ( | |
191 | unsigned long phys_addr, | |
192 | unsigned long size) | |
193 | { | |
194 | struct acpi_table_madt *madt = NULL; | |
195 | ||
196 | if (!phys_addr || !size) | |
197 | return -EINVAL; | |
198 | ||
199 | madt = (struct acpi_table_madt *) __acpi_map_table(phys_addr, size); | |
200 | if (!madt) { | |
201 | printk(KERN_WARNING PREFIX "Unable to map MADT\n"); | |
202 | return -ENODEV; | |
203 | } | |
204 | ||
205 | if (madt->lapic_address) { | |
206 | acpi_lapic_addr = (u64) madt->lapic_address; | |
207 | ||
208 | printk(KERN_DEBUG PREFIX "Local APIC address 0x%08x\n", | |
209 | madt->lapic_address); | |
210 | } | |
211 | ||
212 | acpi_madt_oem_check(madt->header.oem_id, madt->header.oem_table_id); | |
213 | ||
214 | return 0; | |
215 | } | |
216 | ||
217 | ||
218 | static int __init | |
219 | acpi_parse_lapic ( | |
220 | acpi_table_entry_header *header, const unsigned long end) | |
221 | { | |
222 | struct acpi_table_lapic *processor = NULL; | |
223 | ||
224 | processor = (struct acpi_table_lapic*) header; | |
225 | ||
226 | if (BAD_MADT_ENTRY(processor, end)) | |
227 | return -EINVAL; | |
228 | ||
229 | acpi_table_print_madt_entry(header); | |
230 | ||
231 | /* no utility in registering a disabled processor */ | |
232 | if (processor->flags.enabled == 0) | |
233 | return 0; | |
234 | ||
235 | x86_acpiid_to_apicid[processor->acpi_id] = processor->id; | |
236 | ||
237 | mp_register_lapic ( | |
238 | processor->id, /* APIC ID */ | |
239 | processor->flags.enabled); /* Enabled? */ | |
240 | ||
241 | return 0; | |
242 | } | |
243 | ||
244 | static int __init | |
245 | acpi_parse_lapic_addr_ovr ( | |
246 | acpi_table_entry_header *header, const unsigned long end) | |
247 | { | |
248 | struct acpi_table_lapic_addr_ovr *lapic_addr_ovr = NULL; | |
249 | ||
250 | lapic_addr_ovr = (struct acpi_table_lapic_addr_ovr*) header; | |
251 | ||
252 | if (BAD_MADT_ENTRY(lapic_addr_ovr, end)) | |
253 | return -EINVAL; | |
254 | ||
255 | acpi_lapic_addr = lapic_addr_ovr->address; | |
256 | ||
257 | return 0; | |
258 | } | |
259 | ||
260 | static int __init | |
261 | acpi_parse_lapic_nmi ( | |
262 | acpi_table_entry_header *header, const unsigned long end) | |
263 | { | |
264 | struct acpi_table_lapic_nmi *lapic_nmi = NULL; | |
265 | ||
266 | lapic_nmi = (struct acpi_table_lapic_nmi*) header; | |
267 | ||
268 | if (BAD_MADT_ENTRY(lapic_nmi, end)) | |
269 | return -EINVAL; | |
270 | ||
271 | acpi_table_print_madt_entry(header); | |
272 | ||
273 | if (lapic_nmi->lint != 1) | |
274 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
275 | ||
276 | return 0; | |
277 | } | |
278 | ||
279 | ||
280 | #endif /*CONFIG_X86_LOCAL_APIC*/ | |
281 | ||
282 | #if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI_INTERPRETER) | |
283 | ||
284 | static int __init | |
285 | acpi_parse_ioapic ( | |
286 | acpi_table_entry_header *header, const unsigned long end) | |
287 | { | |
288 | struct acpi_table_ioapic *ioapic = NULL; | |
289 | ||
290 | ioapic = (struct acpi_table_ioapic*) header; | |
291 | ||
292 | if (BAD_MADT_ENTRY(ioapic, end)) | |
293 | return -EINVAL; | |
294 | ||
295 | acpi_table_print_madt_entry(header); | |
296 | ||
297 | mp_register_ioapic ( | |
298 | ioapic->id, | |
299 | ioapic->address, | |
300 | ioapic->global_irq_base); | |
301 | ||
302 | return 0; | |
303 | } | |
304 | ||
305 | /* | |
306 | * Parse Interrupt Source Override for the ACPI SCI | |
307 | */ | |
308 | static void | |
309 | acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger) | |
310 | { | |
311 | if (trigger == 0) /* compatible SCI trigger is level */ | |
312 | trigger = 3; | |
313 | ||
314 | if (polarity == 0) /* compatible SCI polarity is low */ | |
315 | polarity = 3; | |
316 | ||
317 | /* Command-line over-ride via acpi_sci= */ | |
318 | if (acpi_sci_flags.trigger) | |
319 | trigger = acpi_sci_flags.trigger; | |
320 | ||
321 | if (acpi_sci_flags.polarity) | |
322 | polarity = acpi_sci_flags.polarity; | |
323 | ||
324 | /* | |
325 | * mp_config_acpi_legacy_irqs() already setup IRQs < 16 | |
326 | * If GSI is < 16, this will update its flags, | |
327 | * else it will create a new mp_irqs[] entry. | |
328 | */ | |
329 | mp_override_legacy_irq(gsi, polarity, trigger, gsi); | |
330 | ||
331 | /* | |
332 | * stash over-ride to indicate we've been here | |
333 | * and for later update of acpi_fadt | |
334 | */ | |
335 | acpi_sci_override_gsi = gsi; | |
336 | return; | |
337 | } | |
338 | ||
339 | static int __init | |
340 | acpi_parse_int_src_ovr ( | |
341 | acpi_table_entry_header *header, const unsigned long end) | |
342 | { | |
343 | struct acpi_table_int_src_ovr *intsrc = NULL; | |
344 | ||
345 | intsrc = (struct acpi_table_int_src_ovr*) header; | |
346 | ||
347 | if (BAD_MADT_ENTRY(intsrc, end)) | |
348 | return -EINVAL; | |
349 | ||
350 | acpi_table_print_madt_entry(header); | |
351 | ||
352 | if (intsrc->bus_irq == acpi_fadt.sci_int) { | |
353 | acpi_sci_ioapic_setup(intsrc->global_irq, | |
354 | intsrc->flags.polarity, intsrc->flags.trigger); | |
355 | return 0; | |
356 | } | |
357 | ||
358 | if (acpi_skip_timer_override && | |
359 | intsrc->bus_irq == 0 && intsrc->global_irq == 2) { | |
360 | printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n"); | |
361 | return 0; | |
362 | } | |
363 | ||
364 | mp_override_legacy_irq ( | |
365 | intsrc->bus_irq, | |
366 | intsrc->flags.polarity, | |
367 | intsrc->flags.trigger, | |
368 | intsrc->global_irq); | |
369 | ||
370 | return 0; | |
371 | } | |
372 | ||
373 | ||
374 | static int __init | |
375 | acpi_parse_nmi_src ( | |
376 | acpi_table_entry_header *header, const unsigned long end) | |
377 | { | |
378 | struct acpi_table_nmi_src *nmi_src = NULL; | |
379 | ||
380 | nmi_src = (struct acpi_table_nmi_src*) header; | |
381 | ||
382 | if (BAD_MADT_ENTRY(nmi_src, end)) | |
383 | return -EINVAL; | |
384 | ||
385 | acpi_table_print_madt_entry(header); | |
386 | ||
387 | /* TBD: Support nimsrc entries? */ | |
388 | ||
389 | return 0; | |
390 | } | |
391 | ||
392 | #endif /* CONFIG_X86_IO_APIC */ | |
393 | ||
394 | #ifdef CONFIG_ACPI_BUS | |
395 | ||
396 | /* | |
397 | * acpi_pic_sci_set_trigger() | |
398 | * | |
399 | * use ELCR to set PIC-mode trigger type for SCI | |
400 | * | |
401 | * If a PIC-mode SCI is not recognized or gives spurious IRQ7's | |
402 | * it may require Edge Trigger -- use "acpi_sci=edge" | |
403 | * | |
404 | * Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers | |
405 | * for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge. | |
406 | * ECLR1 is IRQ's 0-7 (IRQ 0, 1, 2 must be 0) | |
407 | * ECLR2 is IRQ's 8-15 (IRQ 8, 13 must be 0) | |
408 | */ | |
409 | ||
410 | void __init | |
411 | acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger) | |
412 | { | |
413 | unsigned int mask = 1 << irq; | |
414 | unsigned int old, new; | |
415 | ||
416 | /* Real old ELCR mask */ | |
417 | old = inb(0x4d0) | (inb(0x4d1) << 8); | |
418 | ||
419 | /* | |
420 | * If we use ACPI to set PCI irq's, then we should clear ELCR | |
421 | * since we will set it correctly as we enable the PCI irq | |
422 | * routing. | |
423 | */ | |
424 | new = acpi_noirq ? old : 0; | |
425 | ||
426 | /* | |
427 | * Update SCI information in the ELCR, it isn't in the PCI | |
428 | * routing tables.. | |
429 | */ | |
430 | switch (trigger) { | |
431 | case 1: /* Edge - clear */ | |
432 | new &= ~mask; | |
433 | break; | |
434 | case 3: /* Level - set */ | |
435 | new |= mask; | |
436 | break; | |
437 | } | |
438 | ||
439 | if (old == new) | |
440 | return; | |
441 | ||
442 | printk(PREFIX "setting ELCR to %04x (from %04x)\n", new, old); | |
443 | outb(new, 0x4d0); | |
444 | outb(new >> 8, 0x4d1); | |
445 | } | |
446 | ||
447 | ||
448 | #endif /* CONFIG_ACPI_BUS */ | |
449 | ||
450 | int acpi_gsi_to_irq(u32 gsi, unsigned int *irq) | |
451 | { | |
452 | #ifdef CONFIG_X86_IO_APIC | |
453 | if (use_pci_vector() && !platform_legacy_irq(gsi)) | |
454 | *irq = IO_APIC_VECTOR(gsi); | |
455 | else | |
456 | #endif | |
457 | *irq = gsi; | |
458 | return 0; | |
459 | } | |
460 | ||
461 | unsigned int acpi_register_gsi(u32 gsi, int edge_level, int active_high_low) | |
462 | { | |
463 | unsigned int irq; | |
464 | unsigned int plat_gsi = gsi; | |
465 | ||
466 | #ifdef CONFIG_PCI | |
467 | /* | |
468 | * Make sure all (legacy) PCI IRQs are set as level-triggered. | |
469 | */ | |
470 | if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { | |
471 | extern void eisa_set_level_irq(unsigned int irq); | |
472 | ||
473 | if (edge_level == ACPI_LEVEL_SENSITIVE) | |
474 | eisa_set_level_irq(gsi); | |
475 | } | |
476 | #endif | |
477 | ||
478 | #ifdef CONFIG_X86_IO_APIC | |
479 | if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC) { | |
480 | plat_gsi = mp_register_gsi(gsi, edge_level, active_high_low); | |
481 | } | |
482 | #endif | |
483 | acpi_gsi_to_irq(plat_gsi, &irq); | |
484 | return irq; | |
485 | } | |
486 | EXPORT_SYMBOL(acpi_register_gsi); | |
487 | ||
488 | /* | |
489 | * ACPI based hotplug support for CPU | |
490 | */ | |
491 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | |
492 | int | |
493 | acpi_map_lsapic(acpi_handle handle, int *pcpu) | |
494 | { | |
495 | /* TBD */ | |
496 | return -EINVAL; | |
497 | } | |
498 | EXPORT_SYMBOL(acpi_map_lsapic); | |
499 | ||
500 | ||
501 | int | |
502 | acpi_unmap_lsapic(int cpu) | |
503 | { | |
504 | /* TBD */ | |
505 | return -EINVAL; | |
506 | } | |
507 | EXPORT_SYMBOL(acpi_unmap_lsapic); | |
508 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ | |
509 | ||
b1bb248a KK |
510 | int |
511 | acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) | |
512 | { | |
513 | /* TBD */ | |
514 | return -EINVAL; | |
515 | } | |
516 | EXPORT_SYMBOL(acpi_register_ioapic); | |
517 | ||
518 | int | |
519 | acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base) | |
520 | { | |
521 | /* TBD */ | |
522 | return -EINVAL; | |
523 | } | |
524 | EXPORT_SYMBOL(acpi_unregister_ioapic); | |
525 | ||
1da177e4 LT |
526 | static unsigned long __init |
527 | acpi_scan_rsdp ( | |
528 | unsigned long start, | |
529 | unsigned long length) | |
530 | { | |
531 | unsigned long offset = 0; | |
532 | unsigned long sig_len = sizeof("RSD PTR ") - 1; | |
533 | ||
534 | /* | |
535 | * Scan all 16-byte boundaries of the physical memory region for the | |
536 | * RSDP signature. | |
537 | */ | |
538 | for (offset = 0; offset < length; offset += 16) { | |
539 | if (strncmp((char *) (start + offset), "RSD PTR ", sig_len)) | |
540 | continue; | |
541 | return (start + offset); | |
542 | } | |
543 | ||
544 | return 0; | |
545 | } | |
546 | ||
547 | static int __init acpi_parse_sbf(unsigned long phys_addr, unsigned long size) | |
548 | { | |
549 | struct acpi_table_sbf *sb; | |
550 | ||
551 | if (!phys_addr || !size) | |
552 | return -EINVAL; | |
553 | ||
554 | sb = (struct acpi_table_sbf *) __acpi_map_table(phys_addr, size); | |
555 | if (!sb) { | |
556 | printk(KERN_WARNING PREFIX "Unable to map SBF\n"); | |
557 | return -ENODEV; | |
558 | } | |
559 | ||
560 | sbf_port = sb->sbf_cmos; /* Save CMOS port */ | |
561 | ||
562 | return 0; | |
563 | } | |
564 | ||
565 | ||
566 | #ifdef CONFIG_HPET_TIMER | |
567 | ||
568 | static int __init acpi_parse_hpet(unsigned long phys, unsigned long size) | |
569 | { | |
570 | struct acpi_table_hpet *hpet_tbl; | |
571 | ||
572 | if (!phys || !size) | |
573 | return -EINVAL; | |
574 | ||
575 | hpet_tbl = (struct acpi_table_hpet *) __acpi_map_table(phys, size); | |
576 | if (!hpet_tbl) { | |
577 | printk(KERN_WARNING PREFIX "Unable to map HPET\n"); | |
578 | return -ENODEV; | |
579 | } | |
580 | ||
581 | if (hpet_tbl->addr.space_id != ACPI_SPACE_MEM) { | |
582 | printk(KERN_WARNING PREFIX "HPET timers must be located in " | |
583 | "memory.\n"); | |
584 | return -1; | |
585 | } | |
586 | ||
587 | #ifdef CONFIG_X86_64 | |
588 | vxtime.hpet_address = hpet_tbl->addr.addrl | | |
589 | ((long) hpet_tbl->addr.addrh << 32); | |
590 | ||
591 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", | |
592 | hpet_tbl->id, vxtime.hpet_address); | |
593 | #else /* X86 */ | |
594 | { | |
595 | extern unsigned long hpet_address; | |
596 | ||
597 | hpet_address = hpet_tbl->addr.addrl; | |
598 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", | |
599 | hpet_tbl->id, hpet_address); | |
600 | } | |
601 | #endif /* X86 */ | |
602 | ||
603 | return 0; | |
604 | } | |
605 | #else | |
606 | #define acpi_parse_hpet NULL | |
607 | #endif | |
608 | ||
609 | #ifdef CONFIG_X86_PM_TIMER | |
610 | extern u32 pmtmr_ioport; | |
611 | #endif | |
612 | ||
613 | static int __init acpi_parse_fadt(unsigned long phys, unsigned long size) | |
614 | { | |
615 | struct fadt_descriptor_rev2 *fadt = NULL; | |
616 | ||
617 | fadt = (struct fadt_descriptor_rev2*) __acpi_map_table(phys,size); | |
618 | if(!fadt) { | |
619 | printk(KERN_WARNING PREFIX "Unable to map FADT\n"); | |
620 | return 0; | |
621 | } | |
622 | ||
623 | #ifdef CONFIG_ACPI_INTERPRETER | |
624 | /* initialize sci_int early for INT_SRC_OVR MADT parsing */ | |
625 | acpi_fadt.sci_int = fadt->sci_int; | |
626 | #endif | |
627 | ||
15e88699 | 628 | #ifdef CONFIG_ACPI_BUS |
90660ec3 JD |
629 | /* initialize rev and apic_phys_dest_mode for x86_64 genapic */ |
630 | acpi_fadt.revision = fadt->revision; | |
631 | acpi_fadt.force_apic_physical_destination_mode = fadt->force_apic_physical_destination_mode; | |
15e88699 | 632 | #endif |
90660ec3 | 633 | |
1da177e4 LT |
634 | #ifdef CONFIG_X86_PM_TIMER |
635 | /* detect the location of the ACPI PM Timer */ | |
636 | if (fadt->revision >= FADT2_REVISION_ID) { | |
637 | /* FADT rev. 2 */ | |
638 | if (fadt->xpm_tmr_blk.address_space_id != ACPI_ADR_SPACE_SYSTEM_IO) | |
639 | return 0; | |
640 | ||
641 | pmtmr_ioport = fadt->xpm_tmr_blk.address; | |
642 | } else { | |
643 | /* FADT rev. 1 */ | |
644 | pmtmr_ioport = fadt->V1_pm_tmr_blk; | |
645 | } | |
646 | if (pmtmr_ioport) | |
647 | printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n", pmtmr_ioport); | |
648 | #endif | |
649 | return 0; | |
650 | } | |
651 | ||
652 | ||
653 | unsigned long __init | |
654 | acpi_find_rsdp (void) | |
655 | { | |
656 | unsigned long rsdp_phys = 0; | |
657 | ||
658 | if (efi_enabled) { | |
659 | if (efi.acpi20) | |
660 | return __pa(efi.acpi20); | |
661 | else if (efi.acpi) | |
662 | return __pa(efi.acpi); | |
663 | } | |
664 | /* | |
665 | * Scan memory looking for the RSDP signature. First search EBDA (low | |
666 | * memory) paragraphs and then search upper memory (E0000-FFFFF). | |
667 | */ | |
668 | rsdp_phys = acpi_scan_rsdp (0, 0x400); | |
669 | if (!rsdp_phys) | |
22490eb8 | 670 | rsdp_phys = acpi_scan_rsdp (0xE0000, 0x20000); |
1da177e4 LT |
671 | |
672 | return rsdp_phys; | |
673 | } | |
674 | ||
675 | #ifdef CONFIG_X86_LOCAL_APIC | |
676 | /* | |
677 | * Parse LAPIC entries in MADT | |
678 | * returns 0 on success, < 0 on error | |
679 | */ | |
680 | static int __init | |
681 | acpi_parse_madt_lapic_entries(void) | |
682 | { | |
683 | int count; | |
684 | ||
685 | /* | |
686 | * Note that the LAPIC address is obtained from the MADT (32-bit value) | |
687 | * and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value). | |
688 | */ | |
689 | ||
690 | count = acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR, acpi_parse_lapic_addr_ovr, 0); | |
691 | if (count < 0) { | |
692 | printk(KERN_ERR PREFIX "Error parsing LAPIC address override entry\n"); | |
693 | return count; | |
694 | } | |
695 | ||
696 | mp_register_lapic_address(acpi_lapic_addr); | |
697 | ||
698 | count = acpi_table_parse_madt(ACPI_MADT_LAPIC, acpi_parse_lapic, | |
699 | MAX_APICS); | |
700 | if (!count) { | |
701 | printk(KERN_ERR PREFIX "No LAPIC entries present\n"); | |
702 | /* TBD: Cleanup to allow fallback to MPS */ | |
703 | return -ENODEV; | |
704 | } | |
705 | else if (count < 0) { | |
706 | printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n"); | |
707 | /* TBD: Cleanup to allow fallback to MPS */ | |
708 | return count; | |
709 | } | |
710 | ||
711 | count = acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi, 0); | |
712 | if (count < 0) { | |
713 | printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); | |
714 | /* TBD: Cleanup to allow fallback to MPS */ | |
715 | return count; | |
716 | } | |
717 | return 0; | |
718 | } | |
719 | #endif /* CONFIG_X86_LOCAL_APIC */ | |
720 | ||
721 | #if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI_INTERPRETER) | |
722 | /* | |
723 | * Parse IOAPIC related entries in MADT | |
724 | * returns 0 on success, < 0 on error | |
725 | */ | |
726 | static int __init | |
727 | acpi_parse_madt_ioapic_entries(void) | |
728 | { | |
729 | int count; | |
730 | ||
731 | /* | |
732 | * ACPI interpreter is required to complete interrupt setup, | |
733 | * so if it is off, don't enumerate the io-apics with ACPI. | |
734 | * If MPS is present, it will handle them, | |
735 | * otherwise the system will stay in PIC mode | |
736 | */ | |
737 | if (acpi_disabled || acpi_noirq) { | |
738 | return -ENODEV; | |
739 | } | |
740 | ||
741 | /* | |
742 | * if "noapic" boot option, don't look for IO-APICs | |
743 | */ | |
744 | if (skip_ioapic_setup) { | |
745 | printk(KERN_INFO PREFIX "Skipping IOAPIC probe " | |
746 | "due to 'noapic' option.\n"); | |
747 | return -ENODEV; | |
748 | } | |
749 | ||
750 | count = acpi_table_parse_madt(ACPI_MADT_IOAPIC, acpi_parse_ioapic, MAX_IO_APICS); | |
751 | if (!count) { | |
752 | printk(KERN_ERR PREFIX "No IOAPIC entries present\n"); | |
753 | return -ENODEV; | |
754 | } | |
755 | else if (count < 0) { | |
756 | printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n"); | |
757 | return count; | |
758 | } | |
759 | ||
760 | count = acpi_table_parse_madt(ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr, NR_IRQ_VECTORS); | |
761 | if (count < 0) { | |
762 | printk(KERN_ERR PREFIX "Error parsing interrupt source overrides entry\n"); | |
763 | /* TBD: Cleanup to allow fallback to MPS */ | |
764 | return count; | |
765 | } | |
766 | ||
767 | /* | |
768 | * If BIOS did not supply an INT_SRC_OVR for the SCI | |
769 | * pretend we got one so we can set the SCI flags. | |
770 | */ | |
771 | if (!acpi_sci_override_gsi) | |
772 | acpi_sci_ioapic_setup(acpi_fadt.sci_int, 0, 0); | |
773 | ||
774 | /* Fill in identity legacy mapings where no override */ | |
775 | mp_config_acpi_legacy_irqs(); | |
776 | ||
777 | count = acpi_table_parse_madt(ACPI_MADT_NMI_SRC, acpi_parse_nmi_src, NR_IRQ_VECTORS); | |
778 | if (count < 0) { | |
779 | printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n"); | |
780 | /* TBD: Cleanup to allow fallback to MPS */ | |
781 | return count; | |
782 | } | |
783 | ||
784 | return 0; | |
785 | } | |
786 | #else | |
787 | static inline int acpi_parse_madt_ioapic_entries(void) | |
788 | { | |
789 | return -1; | |
790 | } | |
791 | #endif /* !(CONFIG_X86_IO_APIC && CONFIG_ACPI_INTERPRETER) */ | |
792 | ||
793 | ||
794 | static void __init | |
795 | acpi_process_madt(void) | |
796 | { | |
797 | #ifdef CONFIG_X86_LOCAL_APIC | |
798 | int count, error; | |
799 | ||
800 | count = acpi_table_parse(ACPI_APIC, acpi_parse_madt); | |
801 | if (count >= 1) { | |
802 | ||
803 | /* | |
804 | * Parse MADT LAPIC entries | |
805 | */ | |
806 | error = acpi_parse_madt_lapic_entries(); | |
807 | if (!error) { | |
808 | acpi_lapic = 1; | |
809 | ||
810 | /* | |
811 | * Parse MADT IO-APIC entries | |
812 | */ | |
813 | error = acpi_parse_madt_ioapic_entries(); | |
814 | if (!error) { | |
815 | acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; | |
816 | acpi_irq_balance_set(NULL); | |
817 | acpi_ioapic = 1; | |
818 | ||
819 | smp_found_config = 1; | |
820 | clustered_apic_check(); | |
821 | } | |
822 | } | |
823 | if (error == -EINVAL) { | |
824 | /* | |
825 | * Dell Precision Workstation 410, 610 come here. | |
826 | */ | |
827 | printk(KERN_ERR PREFIX "Invalid BIOS MADT, disabling ACPI\n"); | |
828 | disable_acpi(); | |
829 | } | |
830 | } | |
831 | #endif | |
832 | return; | |
833 | } | |
834 | ||
aea00143 AP |
835 | extern int acpi_force; |
836 | ||
837 | #ifdef __i386__ | |
838 | ||
839 | #ifdef CONFIG_ACPI_PCI | |
840 | static int __init disable_acpi_irq(struct dmi_system_id *d) | |
841 | { | |
842 | if (!acpi_force) { | |
843 | printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n", | |
844 | d->ident); | |
845 | acpi_noirq_set(); | |
846 | } | |
847 | return 0; | |
848 | } | |
849 | ||
850 | static int __init disable_acpi_pci(struct dmi_system_id *d) | |
851 | { | |
852 | if (!acpi_force) { | |
853 | printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n", | |
854 | d->ident); | |
855 | acpi_disable_pci(); | |
856 | } | |
857 | return 0; | |
858 | } | |
859 | #endif | |
860 | ||
861 | static int __init dmi_disable_acpi(struct dmi_system_id *d) | |
862 | { | |
863 | if (!acpi_force) { | |
864 | printk(KERN_NOTICE "%s detected: acpi off\n",d->ident); | |
865 | disable_acpi(); | |
866 | } else { | |
867 | printk(KERN_NOTICE | |
868 | "Warning: DMI blacklist says broken, but acpi forced\n"); | |
869 | } | |
870 | return 0; | |
871 | } | |
872 | ||
873 | /* | |
874 | * Limit ACPI to CPU enumeration for HT | |
875 | */ | |
876 | static int __init force_acpi_ht(struct dmi_system_id *d) | |
877 | { | |
878 | if (!acpi_force) { | |
879 | printk(KERN_NOTICE "%s detected: force use of acpi=ht\n", d->ident); | |
880 | disable_acpi(); | |
881 | acpi_ht = 1; | |
882 | } else { | |
883 | printk(KERN_NOTICE | |
884 | "Warning: acpi=force overrules DMI blacklist: acpi=ht\n"); | |
885 | } | |
886 | return 0; | |
887 | } | |
888 | ||
889 | /* | |
890 | * If your system is blacklisted here, but you find that acpi=force | |
891 | * works for you, please contact acpi-devel@sourceforge.net | |
892 | */ | |
893 | static struct dmi_system_id __initdata acpi_dmi_table[] = { | |
894 | /* | |
895 | * Boxes that need ACPI disabled | |
896 | */ | |
897 | { | |
898 | .callback = dmi_disable_acpi, | |
899 | .ident = "IBM Thinkpad", | |
900 | .matches = { | |
901 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
902 | DMI_MATCH(DMI_BOARD_NAME, "2629H1G"), | |
903 | }, | |
904 | }, | |
905 | ||
906 | /* | |
907 | * Boxes that need acpi=ht | |
908 | */ | |
909 | { | |
910 | .callback = force_acpi_ht, | |
911 | .ident = "FSC Primergy T850", | |
912 | .matches = { | |
913 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), | |
914 | DMI_MATCH(DMI_PRODUCT_NAME, "PRIMERGY T850"), | |
915 | }, | |
916 | }, | |
917 | { | |
918 | .callback = force_acpi_ht, | |
919 | .ident = "DELL GX240", | |
920 | .matches = { | |
921 | DMI_MATCH(DMI_BOARD_VENDOR, "Dell Computer Corporation"), | |
922 | DMI_MATCH(DMI_BOARD_NAME, "OptiPlex GX240"), | |
923 | }, | |
924 | }, | |
925 | { | |
926 | .callback = force_acpi_ht, | |
927 | .ident = "HP VISUALIZE NT Workstation", | |
928 | .matches = { | |
929 | DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), | |
930 | DMI_MATCH(DMI_PRODUCT_NAME, "HP VISUALIZE NT Workstation"), | |
931 | }, | |
932 | }, | |
933 | { | |
934 | .callback = force_acpi_ht, | |
935 | .ident = "Compaq Workstation W8000", | |
936 | .matches = { | |
937 | DMI_MATCH(DMI_SYS_VENDOR, "Compaq"), | |
938 | DMI_MATCH(DMI_PRODUCT_NAME, "Workstation W8000"), | |
939 | }, | |
940 | }, | |
941 | { | |
942 | .callback = force_acpi_ht, | |
943 | .ident = "ASUS P4B266", | |
944 | .matches = { | |
945 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
946 | DMI_MATCH(DMI_BOARD_NAME, "P4B266"), | |
947 | }, | |
948 | }, | |
949 | { | |
950 | .callback = force_acpi_ht, | |
951 | .ident = "ASUS P2B-DS", | |
952 | .matches = { | |
953 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
954 | DMI_MATCH(DMI_BOARD_NAME, "P2B-DS"), | |
955 | }, | |
956 | }, | |
957 | { | |
958 | .callback = force_acpi_ht, | |
959 | .ident = "ASUS CUR-DLS", | |
960 | .matches = { | |
961 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
962 | DMI_MATCH(DMI_BOARD_NAME, "CUR-DLS"), | |
963 | }, | |
964 | }, | |
965 | { | |
966 | .callback = force_acpi_ht, | |
967 | .ident = "ABIT i440BX-W83977", | |
968 | .matches = { | |
969 | DMI_MATCH(DMI_BOARD_VENDOR, "ABIT <http://www.abit.com>"), | |
970 | DMI_MATCH(DMI_BOARD_NAME, "i440BX-W83977 (BP6)"), | |
971 | }, | |
972 | }, | |
973 | { | |
974 | .callback = force_acpi_ht, | |
975 | .ident = "IBM Bladecenter", | |
976 | .matches = { | |
977 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
978 | DMI_MATCH(DMI_BOARD_NAME, "IBM eServer BladeCenter HS20"), | |
979 | }, | |
980 | }, | |
981 | { | |
982 | .callback = force_acpi_ht, | |
983 | .ident = "IBM eServer xSeries 360", | |
984 | .matches = { | |
985 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
986 | DMI_MATCH(DMI_BOARD_NAME, "eServer xSeries 360"), | |
987 | }, | |
988 | }, | |
989 | { | |
990 | .callback = force_acpi_ht, | |
991 | .ident = "IBM eserver xSeries 330", | |
992 | .matches = { | |
993 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
994 | DMI_MATCH(DMI_BOARD_NAME, "eserver xSeries 330"), | |
995 | }, | |
996 | }, | |
997 | { | |
998 | .callback = force_acpi_ht, | |
999 | .ident = "IBM eserver xSeries 440", | |
1000 | .matches = { | |
1001 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1002 | DMI_MATCH(DMI_PRODUCT_NAME, "eserver xSeries 440"), | |
1003 | }, | |
1004 | }, | |
1005 | ||
1006 | #ifdef CONFIG_ACPI_PCI | |
1007 | /* | |
1008 | * Boxes that need ACPI PCI IRQ routing disabled | |
1009 | */ | |
1010 | { | |
1011 | .callback = disable_acpi_irq, | |
1012 | .ident = "ASUS A7V", | |
1013 | .matches = { | |
1014 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"), | |
1015 | DMI_MATCH(DMI_BOARD_NAME, "<A7V>"), | |
1016 | /* newer BIOS, Revision 1011, does work */ | |
1017 | DMI_MATCH(DMI_BIOS_VERSION, "ASUS A7V ACPI BIOS Revision 1007"), | |
1018 | }, | |
1019 | }, | |
1020 | ||
1021 | /* | |
1022 | * Boxes that need ACPI PCI IRQ routing and PCI scan disabled | |
1023 | */ | |
1024 | { /* _BBN 0 bug */ | |
1025 | .callback = disable_acpi_pci, | |
1026 | .ident = "ASUS PR-DLS", | |
1027 | .matches = { | |
1028 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1029 | DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"), | |
1030 | DMI_MATCH(DMI_BIOS_VERSION, "ASUS PR-DLS ACPI BIOS Revision 1010"), | |
1031 | DMI_MATCH(DMI_BIOS_DATE, "03/21/2003") | |
1032 | }, | |
1033 | }, | |
1034 | { | |
1035 | .callback = disable_acpi_pci, | |
1036 | .ident = "Acer TravelMate 36x Laptop", | |
1037 | .matches = { | |
1038 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
1039 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), | |
1040 | }, | |
1041 | }, | |
1042 | #endif | |
0f8133a8 | 1043 | { } |
aea00143 AP |
1044 | }; |
1045 | ||
1046 | #endif /* __i386__ */ | |
1047 | ||
1da177e4 LT |
1048 | /* |
1049 | * acpi_boot_table_init() and acpi_boot_init() | |
1050 | * called from setup_arch(), always. | |
1051 | * 1. checksums all tables | |
1052 | * 2. enumerates lapics | |
1053 | * 3. enumerates io-apics | |
1054 | * | |
1055 | * acpi_table_init() is separate to allow reading SRAT without | |
1056 | * other side effects. | |
1057 | * | |
1058 | * side effects of acpi_boot_init: | |
1059 | * acpi_lapic = 1 if LAPIC found | |
1060 | * acpi_ioapic = 1 if IOAPIC found | |
1061 | * if (acpi_lapic && acpi_ioapic) smp_found_config = 1; | |
1062 | * if acpi_blacklisted() acpi_disabled = 1; | |
1063 | * acpi_irq_model=... | |
1064 | * ... | |
1065 | * | |
1066 | * return value: (currently ignored) | |
1067 | * 0: success | |
1068 | * !0: failure | |
1069 | */ | |
1070 | ||
1071 | int __init | |
1072 | acpi_boot_table_init(void) | |
1073 | { | |
1074 | int error; | |
1075 | ||
aea00143 AP |
1076 | #ifdef __i386__ |
1077 | dmi_check_system(acpi_dmi_table); | |
1078 | #endif | |
1079 | ||
1da177e4 LT |
1080 | /* |
1081 | * If acpi_disabled, bail out | |
1082 | * One exception: acpi=ht continues far enough to enumerate LAPICs | |
1083 | */ | |
1084 | if (acpi_disabled && !acpi_ht) | |
1085 | return 1; | |
1086 | ||
1087 | /* | |
1088 | * Initialize the ACPI boot-time table parser. | |
1089 | */ | |
1090 | error = acpi_table_init(); | |
1091 | if (error) { | |
1092 | disable_acpi(); | |
1093 | return error; | |
1094 | } | |
1095 | ||
1096 | #ifdef __i386__ | |
1097 | check_acpi_pci(); | |
1098 | #endif | |
1099 | ||
1100 | acpi_table_parse(ACPI_BOOT, acpi_parse_sbf); | |
1101 | ||
1102 | /* | |
1103 | * blacklist may disable ACPI entirely | |
1104 | */ | |
1105 | error = acpi_blacklisted(); | |
1106 | if (error) { | |
1da177e4 LT |
1107 | if (acpi_force) { |
1108 | printk(KERN_WARNING PREFIX "acpi=force override\n"); | |
1109 | } else { | |
1110 | printk(KERN_WARNING PREFIX "Disabling ACPI support\n"); | |
1111 | disable_acpi(); | |
1112 | return error; | |
1113 | } | |
1114 | } | |
1115 | ||
1116 | return 0; | |
1117 | } | |
1118 | ||
1119 | ||
1120 | int __init acpi_boot_init(void) | |
1121 | { | |
1122 | /* | |
1123 | * If acpi_disabled, bail out | |
1124 | * One exception: acpi=ht continues far enough to enumerate LAPICs | |
1125 | */ | |
1126 | if (acpi_disabled && !acpi_ht) | |
1127 | return 1; | |
1128 | ||
1129 | acpi_table_parse(ACPI_BOOT, acpi_parse_sbf); | |
1130 | ||
1131 | /* | |
1132 | * set sci_int and PM timer address | |
1133 | */ | |
1134 | acpi_table_parse(ACPI_FADT, acpi_parse_fadt); | |
1135 | ||
1136 | /* | |
1137 | * Process the Multiple APIC Description Table (MADT), if present | |
1138 | */ | |
1139 | acpi_process_madt(); | |
1140 | ||
1141 | acpi_table_parse(ACPI_HPET, acpi_parse_hpet); | |
1142 | acpi_table_parse(ACPI_MCFG, acpi_parse_mcfg); | |
1143 | ||
1144 | return 0; | |
1145 | } | |
1146 |