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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 | ||
4be44fcd LB |
43 | static inline void acpi_madt_oem_check(char *oem_id, char *oem_table_id) |
44 | { | |
45 | } | |
1da177e4 | 46 | extern void __init clustered_apic_check(void); |
4be44fcd LB |
47 | static inline int ioapic_setup_disabled(void) |
48 | { | |
49 | return 0; | |
50 | } | |
51 | ||
1da177e4 LT |
52 | #include <asm/proto.h> |
53 | ||
4be44fcd | 54 | #else /* X86 */ |
1da177e4 LT |
55 | |
56 | #ifdef CONFIG_X86_LOCAL_APIC | |
57 | #include <mach_apic.h> | |
58 | #include <mach_mpparse.h> | |
4be44fcd | 59 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 60 | |
4be44fcd | 61 | #endif /* X86 */ |
1da177e4 LT |
62 | |
63 | #define BAD_MADT_ENTRY(entry, end) ( \ | |
64 | (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ | |
65 | ((acpi_table_entry_header *)entry)->length != sizeof(*entry)) | |
66 | ||
67 | #define PREFIX "ACPI: " | |
68 | ||
69 | #ifdef CONFIG_ACPI_PCI | |
70 | int acpi_noirq __initdata; /* skip ACPI IRQ initialization */ | |
4be44fcd | 71 | int acpi_pci_disabled __initdata; /* skip ACPI PCI scan and IRQ initialization */ |
1da177e4 LT |
72 | #else |
73 | int acpi_noirq __initdata = 1; | |
74 | int acpi_pci_disabled __initdata = 1; | |
75 | #endif | |
76 | int acpi_ht __initdata = 1; /* enable HT */ | |
77 | ||
78 | int acpi_lapic; | |
79 | int acpi_ioapic; | |
80 | int acpi_strict; | |
81 | EXPORT_SYMBOL(acpi_strict); | |
82 | ||
83 | acpi_interrupt_flags acpi_sci_flags __initdata; | |
84 | int acpi_sci_override_gsi __initdata; | |
85 | int acpi_skip_timer_override __initdata; | |
86 | ||
87 | #ifdef CONFIG_X86_LOCAL_APIC | |
88 | static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; | |
89 | #endif | |
90 | ||
91 | #ifndef __HAVE_ARCH_CMPXCHG | |
92 | #warning ACPI uses CMPXCHG, i486 and later hardware | |
93 | #endif | |
94 | ||
95 | #define MAX_MADT_ENTRIES 256 | |
96 | u8 x86_acpiid_to_apicid[MAX_MADT_ENTRIES] = | |
4be44fcd | 97 | {[0...MAX_MADT_ENTRIES - 1] = 0xff }; |
1da177e4 LT |
98 | EXPORT_SYMBOL(x86_acpiid_to_apicid); |
99 | ||
100 | /* -------------------------------------------------------------------------- | |
101 | Boot-time Configuration | |
102 | -------------------------------------------------------------------------- */ | |
103 | ||
104 | /* | |
105 | * The default interrupt routing model is PIC (8259). This gets | |
106 | * overriden if IOAPICs are enumerated (below). | |
107 | */ | |
4be44fcd | 108 | enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC; |
1da177e4 LT |
109 | |
110 | #ifdef CONFIG_X86_64 | |
111 | ||
112 | /* rely on all ACPI tables being in the direct mapping */ | |
113 | char *__acpi_map_table(unsigned long phys_addr, unsigned long size) | |
114 | { | |
115 | if (!phys_addr || !size) | |
4be44fcd | 116 | return NULL; |
1da177e4 LT |
117 | |
118 | if (phys_addr < (end_pfn_map << PAGE_SHIFT)) | |
119 | return __va(phys_addr); | |
120 | ||
121 | return NULL; | |
122 | } | |
123 | ||
124 | #else | |
125 | ||
126 | /* | |
127 | * Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END, | |
128 | * to map the target physical address. The problem is that set_fixmap() | |
129 | * provides a single page, and it is possible that the page is not | |
130 | * sufficient. | |
131 | * By using this area, we can map up to MAX_IO_APICS pages temporarily, | |
132 | * i.e. until the next __va_range() call. | |
133 | * | |
134 | * Important Safety Note: The fixed I/O APIC page numbers are *subtracted* | |
135 | * from the fixed base. That's why we start at FIX_IO_APIC_BASE_END and | |
136 | * count idx down while incrementing the phys address. | |
137 | */ | |
138 | char *__acpi_map_table(unsigned long phys, unsigned long size) | |
139 | { | |
140 | unsigned long base, offset, mapped_size; | |
141 | int idx; | |
142 | ||
4be44fcd LB |
143 | if (phys + size < 8 * 1024 * 1024) |
144 | return __va(phys); | |
1da177e4 LT |
145 | |
146 | offset = phys & (PAGE_SIZE - 1); | |
147 | mapped_size = PAGE_SIZE - offset; | |
148 | set_fixmap(FIX_ACPI_END, phys); | |
149 | base = fix_to_virt(FIX_ACPI_END); | |
150 | ||
151 | /* | |
152 | * Most cases can be covered by the below. | |
153 | */ | |
154 | idx = FIX_ACPI_END; | |
155 | while (mapped_size < size) { | |
156 | if (--idx < FIX_ACPI_BEGIN) | |
157 | return NULL; /* cannot handle this */ | |
158 | phys += PAGE_SIZE; | |
159 | set_fixmap(idx, phys); | |
160 | mapped_size += PAGE_SIZE; | |
161 | } | |
162 | ||
4be44fcd | 163 | return ((unsigned char *)base + offset); |
1da177e4 LT |
164 | } |
165 | #endif | |
166 | ||
167 | #ifdef CONFIG_PCI_MMCONFIG | |
54549391 GKH |
168 | /* The physical address of the MMCONFIG aperture. Set from ACPI tables. */ |
169 | struct acpi_table_mcfg_config *pci_mmcfg_config; | |
170 | int pci_mmcfg_config_num; | |
171 | ||
172 | int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size) | |
1da177e4 LT |
173 | { |
174 | struct acpi_table_mcfg *mcfg; | |
54549391 GKH |
175 | unsigned long i; |
176 | int config_size; | |
1da177e4 LT |
177 | |
178 | if (!phys_addr || !size) | |
179 | return -EINVAL; | |
180 | ||
4be44fcd | 181 | mcfg = (struct acpi_table_mcfg *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
182 | if (!mcfg) { |
183 | printk(KERN_WARNING PREFIX "Unable to map MCFG\n"); | |
184 | return -ENODEV; | |
185 | } | |
186 | ||
54549391 GKH |
187 | /* how many config structures do we have */ |
188 | pci_mmcfg_config_num = 0; | |
189 | i = size - sizeof(struct acpi_table_mcfg); | |
190 | while (i >= sizeof(struct acpi_table_mcfg_config)) { | |
191 | ++pci_mmcfg_config_num; | |
192 | i -= sizeof(struct acpi_table_mcfg_config); | |
193 | }; | |
194 | if (pci_mmcfg_config_num == 0) { | |
195 | printk(KERN_ERR PREFIX "MMCONFIG has no entries\n"); | |
1da177e4 LT |
196 | return -ENODEV; |
197 | } | |
198 | ||
54549391 GKH |
199 | config_size = pci_mmcfg_config_num * sizeof(*pci_mmcfg_config); |
200 | pci_mmcfg_config = kmalloc(config_size, GFP_KERNEL); | |
201 | if (!pci_mmcfg_config) { | |
202 | printk(KERN_WARNING PREFIX | |
203 | "No memory for MCFG config tables\n"); | |
204 | return -ENOMEM; | |
205 | } | |
206 | ||
207 | memcpy(pci_mmcfg_config, &mcfg->config, config_size); | |
208 | for (i = 0; i < pci_mmcfg_config_num; ++i) { | |
209 | if (mcfg->config[i].base_reserved) { | |
210 | printk(KERN_ERR PREFIX | |
211 | "MMCONFIG not in low 4GB of memory\n"); | |
212 | return -ENODEV; | |
213 | } | |
214 | } | |
1da177e4 LT |
215 | |
216 | return 0; | |
217 | } | |
4be44fcd | 218 | #endif /* CONFIG_PCI_MMCONFIG */ |
1da177e4 LT |
219 | |
220 | #ifdef CONFIG_X86_LOCAL_APIC | |
4be44fcd | 221 | static int __init acpi_parse_madt(unsigned long phys_addr, unsigned long size) |
1da177e4 | 222 | { |
4be44fcd | 223 | struct acpi_table_madt *madt = NULL; |
1da177e4 LT |
224 | |
225 | if (!phys_addr || !size) | |
226 | return -EINVAL; | |
227 | ||
4be44fcd | 228 | madt = (struct acpi_table_madt *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
229 | if (!madt) { |
230 | printk(KERN_WARNING PREFIX "Unable to map MADT\n"); | |
231 | return -ENODEV; | |
232 | } | |
233 | ||
234 | if (madt->lapic_address) { | |
235 | acpi_lapic_addr = (u64) madt->lapic_address; | |
236 | ||
237 | printk(KERN_DEBUG PREFIX "Local APIC address 0x%08x\n", | |
4be44fcd | 238 | madt->lapic_address); |
1da177e4 LT |
239 | } |
240 | ||
241 | acpi_madt_oem_check(madt->header.oem_id, madt->header.oem_table_id); | |
4be44fcd | 242 | |
1da177e4 LT |
243 | return 0; |
244 | } | |
245 | ||
1da177e4 | 246 | static int __init |
4be44fcd | 247 | acpi_parse_lapic(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 | 248 | { |
4be44fcd | 249 | struct acpi_table_lapic *processor = NULL; |
1da177e4 | 250 | |
4be44fcd | 251 | processor = (struct acpi_table_lapic *)header; |
1da177e4 LT |
252 | |
253 | if (BAD_MADT_ENTRY(processor, end)) | |
254 | return -EINVAL; | |
255 | ||
256 | acpi_table_print_madt_entry(header); | |
257 | ||
258 | /* no utility in registering a disabled processor */ | |
259 | if (processor->flags.enabled == 0) | |
260 | return 0; | |
261 | ||
262 | x86_acpiid_to_apicid[processor->acpi_id] = processor->id; | |
263 | ||
4be44fcd LB |
264 | mp_register_lapic(processor->id, /* APIC ID */ |
265 | processor->flags.enabled); /* Enabled? */ | |
1da177e4 LT |
266 | |
267 | return 0; | |
268 | } | |
269 | ||
270 | static int __init | |
4be44fcd LB |
271 | acpi_parse_lapic_addr_ovr(acpi_table_entry_header * header, |
272 | const unsigned long end) | |
1da177e4 LT |
273 | { |
274 | struct acpi_table_lapic_addr_ovr *lapic_addr_ovr = NULL; | |
275 | ||
4be44fcd | 276 | lapic_addr_ovr = (struct acpi_table_lapic_addr_ovr *)header; |
1da177e4 LT |
277 | |
278 | if (BAD_MADT_ENTRY(lapic_addr_ovr, end)) | |
279 | return -EINVAL; | |
280 | ||
281 | acpi_lapic_addr = lapic_addr_ovr->address; | |
282 | ||
283 | return 0; | |
284 | } | |
285 | ||
286 | static int __init | |
4be44fcd | 287 | acpi_parse_lapic_nmi(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
288 | { |
289 | struct acpi_table_lapic_nmi *lapic_nmi = NULL; | |
290 | ||
4be44fcd | 291 | lapic_nmi = (struct acpi_table_lapic_nmi *)header; |
1da177e4 LT |
292 | |
293 | if (BAD_MADT_ENTRY(lapic_nmi, end)) | |
294 | return -EINVAL; | |
295 | ||
296 | acpi_table_print_madt_entry(header); | |
297 | ||
298 | if (lapic_nmi->lint != 1) | |
299 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
300 | ||
301 | return 0; | |
302 | } | |
303 | ||
4be44fcd | 304 | #endif /*CONFIG_X86_LOCAL_APIC */ |
1da177e4 LT |
305 | |
306 | #if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI_INTERPRETER) | |
307 | ||
308 | static int __init | |
4be44fcd | 309 | acpi_parse_ioapic(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
310 | { |
311 | struct acpi_table_ioapic *ioapic = NULL; | |
312 | ||
4be44fcd | 313 | ioapic = (struct acpi_table_ioapic *)header; |
1da177e4 LT |
314 | |
315 | if (BAD_MADT_ENTRY(ioapic, end)) | |
316 | return -EINVAL; | |
4be44fcd | 317 | |
1da177e4 LT |
318 | acpi_table_print_madt_entry(header); |
319 | ||
4be44fcd LB |
320 | mp_register_ioapic(ioapic->id, |
321 | ioapic->address, ioapic->global_irq_base); | |
322 | ||
1da177e4 LT |
323 | return 0; |
324 | } | |
325 | ||
326 | /* | |
327 | * Parse Interrupt Source Override for the ACPI SCI | |
328 | */ | |
4be44fcd | 329 | static void acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger) |
1da177e4 LT |
330 | { |
331 | if (trigger == 0) /* compatible SCI trigger is level */ | |
332 | trigger = 3; | |
333 | ||
334 | if (polarity == 0) /* compatible SCI polarity is low */ | |
335 | polarity = 3; | |
336 | ||
337 | /* Command-line over-ride via acpi_sci= */ | |
338 | if (acpi_sci_flags.trigger) | |
339 | trigger = acpi_sci_flags.trigger; | |
340 | ||
341 | if (acpi_sci_flags.polarity) | |
342 | polarity = acpi_sci_flags.polarity; | |
343 | ||
344 | /* | |
4be44fcd | 345 | * mp_config_acpi_legacy_irqs() already setup IRQs < 16 |
1da177e4 LT |
346 | * If GSI is < 16, this will update its flags, |
347 | * else it will create a new mp_irqs[] entry. | |
348 | */ | |
349 | mp_override_legacy_irq(gsi, polarity, trigger, gsi); | |
350 | ||
351 | /* | |
352 | * stash over-ride to indicate we've been here | |
353 | * and for later update of acpi_fadt | |
354 | */ | |
355 | acpi_sci_override_gsi = gsi; | |
356 | return; | |
357 | } | |
358 | ||
359 | static int __init | |
4be44fcd LB |
360 | acpi_parse_int_src_ovr(acpi_table_entry_header * header, |
361 | const unsigned long end) | |
1da177e4 LT |
362 | { |
363 | struct acpi_table_int_src_ovr *intsrc = NULL; | |
364 | ||
4be44fcd | 365 | intsrc = (struct acpi_table_int_src_ovr *)header; |
1da177e4 LT |
366 | |
367 | if (BAD_MADT_ENTRY(intsrc, end)) | |
368 | return -EINVAL; | |
369 | ||
370 | acpi_table_print_madt_entry(header); | |
371 | ||
372 | if (intsrc->bus_irq == acpi_fadt.sci_int) { | |
373 | acpi_sci_ioapic_setup(intsrc->global_irq, | |
4be44fcd LB |
374 | intsrc->flags.polarity, |
375 | intsrc->flags.trigger); | |
1da177e4 LT |
376 | return 0; |
377 | } | |
378 | ||
379 | if (acpi_skip_timer_override && | |
4be44fcd LB |
380 | intsrc->bus_irq == 0 && intsrc->global_irq == 2) { |
381 | printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n"); | |
382 | return 0; | |
1da177e4 LT |
383 | } |
384 | ||
4be44fcd LB |
385 | mp_override_legacy_irq(intsrc->bus_irq, |
386 | intsrc->flags.polarity, | |
387 | intsrc->flags.trigger, intsrc->global_irq); | |
1da177e4 LT |
388 | |
389 | return 0; | |
390 | } | |
391 | ||
1da177e4 | 392 | static int __init |
4be44fcd | 393 | acpi_parse_nmi_src(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
394 | { |
395 | struct acpi_table_nmi_src *nmi_src = NULL; | |
396 | ||
4be44fcd | 397 | nmi_src = (struct acpi_table_nmi_src *)header; |
1da177e4 LT |
398 | |
399 | if (BAD_MADT_ENTRY(nmi_src, end)) | |
400 | return -EINVAL; | |
401 | ||
402 | acpi_table_print_madt_entry(header); | |
403 | ||
404 | /* TBD: Support nimsrc entries? */ | |
405 | ||
406 | return 0; | |
407 | } | |
408 | ||
4be44fcd | 409 | #endif /* CONFIG_X86_IO_APIC */ |
1da177e4 LT |
410 | |
411 | #ifdef CONFIG_ACPI_BUS | |
412 | ||
413 | /* | |
414 | * acpi_pic_sci_set_trigger() | |
415 | * | |
416 | * use ELCR to set PIC-mode trigger type for SCI | |
417 | * | |
418 | * If a PIC-mode SCI is not recognized or gives spurious IRQ7's | |
419 | * it may require Edge Trigger -- use "acpi_sci=edge" | |
420 | * | |
421 | * Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers | |
422 | * for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge. | |
423 | * ECLR1 is IRQ's 0-7 (IRQ 0, 1, 2 must be 0) | |
424 | * ECLR2 is IRQ's 8-15 (IRQ 8, 13 must be 0) | |
425 | */ | |
426 | ||
4be44fcd | 427 | void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger) |
1da177e4 LT |
428 | { |
429 | unsigned int mask = 1 << irq; | |
430 | unsigned int old, new; | |
431 | ||
432 | /* Real old ELCR mask */ | |
433 | old = inb(0x4d0) | (inb(0x4d1) << 8); | |
434 | ||
435 | /* | |
436 | * If we use ACPI to set PCI irq's, then we should clear ELCR | |
437 | * since we will set it correctly as we enable the PCI irq | |
438 | * routing. | |
439 | */ | |
440 | new = acpi_noirq ? old : 0; | |
441 | ||
442 | /* | |
443 | * Update SCI information in the ELCR, it isn't in the PCI | |
444 | * routing tables.. | |
445 | */ | |
446 | switch (trigger) { | |
4be44fcd | 447 | case 1: /* Edge - clear */ |
1da177e4 LT |
448 | new &= ~mask; |
449 | break; | |
4be44fcd | 450 | case 3: /* Level - set */ |
1da177e4 LT |
451 | new |= mask; |
452 | break; | |
453 | } | |
454 | ||
455 | if (old == new) | |
456 | return; | |
457 | ||
458 | printk(PREFIX "setting ELCR to %04x (from %04x)\n", new, old); | |
459 | outb(new, 0x4d0); | |
460 | outb(new >> 8, 0x4d1); | |
461 | } | |
462 | ||
4be44fcd | 463 | #endif /* CONFIG_ACPI_BUS */ |
1da177e4 LT |
464 | |
465 | int acpi_gsi_to_irq(u32 gsi, unsigned int *irq) | |
466 | { | |
467 | #ifdef CONFIG_X86_IO_APIC | |
468 | if (use_pci_vector() && !platform_legacy_irq(gsi)) | |
4be44fcd | 469 | *irq = IO_APIC_VECTOR(gsi); |
1da177e4 LT |
470 | else |
471 | #endif | |
472 | *irq = gsi; | |
473 | return 0; | |
474 | } | |
475 | ||
1f3a6a15 KK |
476 | /* |
477 | * success: return IRQ number (>=0) | |
478 | * failure: return < 0 | |
479 | */ | |
480 | int acpi_register_gsi(u32 gsi, int edge_level, int active_high_low) | |
1da177e4 LT |
481 | { |
482 | unsigned int irq; | |
483 | unsigned int plat_gsi = gsi; | |
484 | ||
485 | #ifdef CONFIG_PCI | |
486 | /* | |
487 | * Make sure all (legacy) PCI IRQs are set as level-triggered. | |
488 | */ | |
489 | if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { | |
490 | extern void eisa_set_level_irq(unsigned int irq); | |
491 | ||
492 | if (edge_level == ACPI_LEVEL_SENSITIVE) | |
4be44fcd | 493 | eisa_set_level_irq(gsi); |
1da177e4 LT |
494 | } |
495 | #endif | |
496 | ||
497 | #ifdef CONFIG_X86_IO_APIC | |
498 | if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC) { | |
499 | plat_gsi = mp_register_gsi(gsi, edge_level, active_high_low); | |
500 | } | |
501 | #endif | |
502 | acpi_gsi_to_irq(plat_gsi, &irq); | |
503 | return irq; | |
504 | } | |
4be44fcd | 505 | |
1da177e4 LT |
506 | EXPORT_SYMBOL(acpi_register_gsi); |
507 | ||
508 | /* | |
509 | * ACPI based hotplug support for CPU | |
510 | */ | |
511 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | |
4be44fcd | 512 | int acpi_map_lsapic(acpi_handle handle, int *pcpu) |
1da177e4 LT |
513 | { |
514 | /* TBD */ | |
515 | return -EINVAL; | |
516 | } | |
1da177e4 | 517 | |
4be44fcd | 518 | EXPORT_SYMBOL(acpi_map_lsapic); |
1da177e4 | 519 | |
4be44fcd | 520 | int acpi_unmap_lsapic(int cpu) |
1da177e4 LT |
521 | { |
522 | /* TBD */ | |
523 | return -EINVAL; | |
524 | } | |
4be44fcd | 525 | |
1da177e4 | 526 | EXPORT_SYMBOL(acpi_unmap_lsapic); |
4be44fcd | 527 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ |
1da177e4 | 528 | |
4be44fcd | 529 | int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) |
b1bb248a KK |
530 | { |
531 | /* TBD */ | |
532 | return -EINVAL; | |
533 | } | |
4be44fcd | 534 | |
b1bb248a KK |
535 | EXPORT_SYMBOL(acpi_register_ioapic); |
536 | ||
4be44fcd | 537 | int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base) |
b1bb248a KK |
538 | { |
539 | /* TBD */ | |
540 | return -EINVAL; | |
541 | } | |
4be44fcd | 542 | |
b1bb248a KK |
543 | EXPORT_SYMBOL(acpi_unregister_ioapic); |
544 | ||
1da177e4 | 545 | static unsigned long __init |
4be44fcd | 546 | acpi_scan_rsdp(unsigned long start, unsigned long length) |
1da177e4 | 547 | { |
4be44fcd LB |
548 | unsigned long offset = 0; |
549 | unsigned long sig_len = sizeof("RSD PTR ") - 1; | |
1da177e4 LT |
550 | |
551 | /* | |
552 | * Scan all 16-byte boundaries of the physical memory region for the | |
553 | * RSDP signature. | |
554 | */ | |
555 | for (offset = 0; offset < length; offset += 16) { | |
4be44fcd | 556 | if (strncmp((char *)(start + offset), "RSD PTR ", sig_len)) |
1da177e4 LT |
557 | continue; |
558 | return (start + offset); | |
559 | } | |
560 | ||
561 | return 0; | |
562 | } | |
563 | ||
564 | static int __init acpi_parse_sbf(unsigned long phys_addr, unsigned long size) | |
565 | { | |
566 | struct acpi_table_sbf *sb; | |
567 | ||
568 | if (!phys_addr || !size) | |
4be44fcd | 569 | return -EINVAL; |
1da177e4 | 570 | |
4be44fcd | 571 | sb = (struct acpi_table_sbf *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
572 | if (!sb) { |
573 | printk(KERN_WARNING PREFIX "Unable to map SBF\n"); | |
574 | return -ENODEV; | |
575 | } | |
576 | ||
4be44fcd | 577 | sbf_port = sb->sbf_cmos; /* Save CMOS port */ |
1da177e4 LT |
578 | |
579 | return 0; | |
580 | } | |
581 | ||
1da177e4 LT |
582 | #ifdef CONFIG_HPET_TIMER |
583 | ||
584 | static int __init acpi_parse_hpet(unsigned long phys, unsigned long size) | |
585 | { | |
586 | struct acpi_table_hpet *hpet_tbl; | |
587 | ||
588 | if (!phys || !size) | |
589 | return -EINVAL; | |
590 | ||
4be44fcd | 591 | hpet_tbl = (struct acpi_table_hpet *)__acpi_map_table(phys, size); |
1da177e4 LT |
592 | if (!hpet_tbl) { |
593 | printk(KERN_WARNING PREFIX "Unable to map HPET\n"); | |
594 | return -ENODEV; | |
595 | } | |
596 | ||
597 | if (hpet_tbl->addr.space_id != ACPI_SPACE_MEM) { | |
598 | printk(KERN_WARNING PREFIX "HPET timers must be located in " | |
599 | "memory.\n"); | |
600 | return -1; | |
601 | } | |
1da177e4 | 602 | #ifdef CONFIG_X86_64 |
4be44fcd LB |
603 | vxtime.hpet_address = hpet_tbl->addr.addrl | |
604 | ((long)hpet_tbl->addr.addrh << 32); | |
1da177e4 | 605 | |
4be44fcd LB |
606 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", |
607 | hpet_tbl->id, vxtime.hpet_address); | |
608 | #else /* X86 */ | |
1da177e4 LT |
609 | { |
610 | extern unsigned long hpet_address; | |
611 | ||
612 | hpet_address = hpet_tbl->addr.addrl; | |
613 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", | |
4be44fcd | 614 | hpet_tbl->id, hpet_address); |
1da177e4 | 615 | } |
4be44fcd | 616 | #endif /* X86 */ |
1da177e4 LT |
617 | |
618 | return 0; | |
619 | } | |
620 | #else | |
621 | #define acpi_parse_hpet NULL | |
622 | #endif | |
623 | ||
624 | #ifdef CONFIG_X86_PM_TIMER | |
625 | extern u32 pmtmr_ioport; | |
626 | #endif | |
627 | ||
628 | static int __init acpi_parse_fadt(unsigned long phys, unsigned long size) | |
629 | { | |
630 | struct fadt_descriptor_rev2 *fadt = NULL; | |
631 | ||
4be44fcd LB |
632 | fadt = (struct fadt_descriptor_rev2 *)__acpi_map_table(phys, size); |
633 | if (!fadt) { | |
1da177e4 LT |
634 | printk(KERN_WARNING PREFIX "Unable to map FADT\n"); |
635 | return 0; | |
636 | } | |
1da177e4 LT |
637 | #ifdef CONFIG_ACPI_INTERPRETER |
638 | /* initialize sci_int early for INT_SRC_OVR MADT parsing */ | |
639 | acpi_fadt.sci_int = fadt->sci_int; | |
640 | #endif | |
641 | ||
15e88699 | 642 | #ifdef CONFIG_ACPI_BUS |
90660ec3 JD |
643 | /* initialize rev and apic_phys_dest_mode for x86_64 genapic */ |
644 | acpi_fadt.revision = fadt->revision; | |
4be44fcd LB |
645 | acpi_fadt.force_apic_physical_destination_mode = |
646 | fadt->force_apic_physical_destination_mode; | |
15e88699 | 647 | #endif |
90660ec3 | 648 | |
1da177e4 LT |
649 | #ifdef CONFIG_X86_PM_TIMER |
650 | /* detect the location of the ACPI PM Timer */ | |
651 | if (fadt->revision >= FADT2_REVISION_ID) { | |
652 | /* FADT rev. 2 */ | |
4be44fcd LB |
653 | if (fadt->xpm_tmr_blk.address_space_id != |
654 | ACPI_ADR_SPACE_SYSTEM_IO) | |
1da177e4 LT |
655 | return 0; |
656 | ||
657 | pmtmr_ioport = fadt->xpm_tmr_blk.address; | |
658 | } else { | |
659 | /* FADT rev. 1 */ | |
660 | pmtmr_ioport = fadt->V1_pm_tmr_blk; | |
661 | } | |
662 | if (pmtmr_ioport) | |
4be44fcd LB |
663 | printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n", |
664 | pmtmr_ioport); | |
1da177e4 LT |
665 | #endif |
666 | return 0; | |
667 | } | |
668 | ||
4be44fcd | 669 | unsigned long __init acpi_find_rsdp(void) |
1da177e4 | 670 | { |
4be44fcd | 671 | unsigned long rsdp_phys = 0; |
1da177e4 LT |
672 | |
673 | if (efi_enabled) { | |
674 | if (efi.acpi20) | |
675 | return __pa(efi.acpi20); | |
676 | else if (efi.acpi) | |
677 | return __pa(efi.acpi); | |
678 | } | |
679 | /* | |
680 | * Scan memory looking for the RSDP signature. First search EBDA (low | |
681 | * memory) paragraphs and then search upper memory (E0000-FFFFF). | |
682 | */ | |
4be44fcd | 683 | rsdp_phys = acpi_scan_rsdp(0, 0x400); |
1da177e4 | 684 | if (!rsdp_phys) |
4be44fcd | 685 | rsdp_phys = acpi_scan_rsdp(0xE0000, 0x20000); |
1da177e4 LT |
686 | |
687 | return rsdp_phys; | |
688 | } | |
689 | ||
690 | #ifdef CONFIG_X86_LOCAL_APIC | |
691 | /* | |
692 | * Parse LAPIC entries in MADT | |
693 | * returns 0 on success, < 0 on error | |
694 | */ | |
4be44fcd | 695 | static int __init acpi_parse_madt_lapic_entries(void) |
1da177e4 LT |
696 | { |
697 | int count; | |
698 | ||
699 | /* | |
700 | * Note that the LAPIC address is obtained from the MADT (32-bit value) | |
701 | * and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value). | |
702 | */ | |
703 | ||
4be44fcd LB |
704 | count = |
705 | acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR, | |
706 | acpi_parse_lapic_addr_ovr, 0); | |
1da177e4 | 707 | if (count < 0) { |
4be44fcd LB |
708 | printk(KERN_ERR PREFIX |
709 | "Error parsing LAPIC address override entry\n"); | |
1da177e4 LT |
710 | return count; |
711 | } | |
712 | ||
713 | mp_register_lapic_address(acpi_lapic_addr); | |
714 | ||
715 | count = acpi_table_parse_madt(ACPI_MADT_LAPIC, acpi_parse_lapic, | |
4be44fcd LB |
716 | MAX_APICS); |
717 | if (!count) { | |
1da177e4 LT |
718 | printk(KERN_ERR PREFIX "No LAPIC entries present\n"); |
719 | /* TBD: Cleanup to allow fallback to MPS */ | |
720 | return -ENODEV; | |
4be44fcd | 721 | } else if (count < 0) { |
1da177e4 LT |
722 | printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n"); |
723 | /* TBD: Cleanup to allow fallback to MPS */ | |
724 | return count; | |
725 | } | |
726 | ||
4be44fcd LB |
727 | count = |
728 | acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi, 0); | |
1da177e4 LT |
729 | if (count < 0) { |
730 | printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); | |
731 | /* TBD: Cleanup to allow fallback to MPS */ | |
732 | return count; | |
733 | } | |
734 | return 0; | |
735 | } | |
4be44fcd | 736 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 LT |
737 | |
738 | #if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI_INTERPRETER) | |
739 | /* | |
740 | * Parse IOAPIC related entries in MADT | |
741 | * returns 0 on success, < 0 on error | |
742 | */ | |
4be44fcd | 743 | static int __init acpi_parse_madt_ioapic_entries(void) |
1da177e4 LT |
744 | { |
745 | int count; | |
746 | ||
747 | /* | |
748 | * ACPI interpreter is required to complete interrupt setup, | |
749 | * so if it is off, don't enumerate the io-apics with ACPI. | |
750 | * If MPS is present, it will handle them, | |
751 | * otherwise the system will stay in PIC mode | |
752 | */ | |
753 | if (acpi_disabled || acpi_noirq) { | |
754 | return -ENODEV; | |
4be44fcd | 755 | } |
1da177e4 LT |
756 | |
757 | /* | |
4be44fcd | 758 | * if "noapic" boot option, don't look for IO-APICs |
1da177e4 LT |
759 | */ |
760 | if (skip_ioapic_setup) { | |
761 | printk(KERN_INFO PREFIX "Skipping IOAPIC probe " | |
4be44fcd | 762 | "due to 'noapic' option.\n"); |
1da177e4 LT |
763 | return -ENODEV; |
764 | } | |
765 | ||
4be44fcd LB |
766 | count = |
767 | acpi_table_parse_madt(ACPI_MADT_IOAPIC, acpi_parse_ioapic, | |
768 | MAX_IO_APICS); | |
1da177e4 LT |
769 | if (!count) { |
770 | printk(KERN_ERR PREFIX "No IOAPIC entries present\n"); | |
771 | return -ENODEV; | |
4be44fcd | 772 | } else if (count < 0) { |
1da177e4 LT |
773 | printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n"); |
774 | return count; | |
775 | } | |
776 | ||
4be44fcd LB |
777 | count = |
778 | acpi_table_parse_madt(ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr, | |
779 | NR_IRQ_VECTORS); | |
1da177e4 | 780 | if (count < 0) { |
4be44fcd LB |
781 | printk(KERN_ERR PREFIX |
782 | "Error parsing interrupt source overrides entry\n"); | |
1da177e4 LT |
783 | /* TBD: Cleanup to allow fallback to MPS */ |
784 | return count; | |
785 | } | |
786 | ||
787 | /* | |
788 | * If BIOS did not supply an INT_SRC_OVR for the SCI | |
789 | * pretend we got one so we can set the SCI flags. | |
790 | */ | |
791 | if (!acpi_sci_override_gsi) | |
792 | acpi_sci_ioapic_setup(acpi_fadt.sci_int, 0, 0); | |
793 | ||
794 | /* Fill in identity legacy mapings where no override */ | |
795 | mp_config_acpi_legacy_irqs(); | |
796 | ||
4be44fcd LB |
797 | count = |
798 | acpi_table_parse_madt(ACPI_MADT_NMI_SRC, acpi_parse_nmi_src, | |
799 | NR_IRQ_VECTORS); | |
1da177e4 LT |
800 | if (count < 0) { |
801 | printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n"); | |
802 | /* TBD: Cleanup to allow fallback to MPS */ | |
803 | return count; | |
804 | } | |
805 | ||
806 | return 0; | |
807 | } | |
808 | #else | |
809 | static inline int acpi_parse_madt_ioapic_entries(void) | |
810 | { | |
811 | return -1; | |
812 | } | |
4be44fcd | 813 | #endif /* !(CONFIG_X86_IO_APIC && CONFIG_ACPI_INTERPRETER) */ |
1da177e4 | 814 | |
4be44fcd | 815 | static void __init acpi_process_madt(void) |
1da177e4 LT |
816 | { |
817 | #ifdef CONFIG_X86_LOCAL_APIC | |
818 | int count, error; | |
819 | ||
820 | count = acpi_table_parse(ACPI_APIC, acpi_parse_madt); | |
821 | if (count >= 1) { | |
822 | ||
823 | /* | |
824 | * Parse MADT LAPIC entries | |
825 | */ | |
826 | error = acpi_parse_madt_lapic_entries(); | |
827 | if (!error) { | |
828 | acpi_lapic = 1; | |
829 | ||
830 | /* | |
831 | * Parse MADT IO-APIC entries | |
832 | */ | |
833 | error = acpi_parse_madt_ioapic_entries(); | |
834 | if (!error) { | |
835 | acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; | |
836 | acpi_irq_balance_set(NULL); | |
837 | acpi_ioapic = 1; | |
838 | ||
839 | smp_found_config = 1; | |
840 | clustered_apic_check(); | |
841 | } | |
842 | } | |
843 | if (error == -EINVAL) { | |
844 | /* | |
845 | * Dell Precision Workstation 410, 610 come here. | |
846 | */ | |
4be44fcd LB |
847 | printk(KERN_ERR PREFIX |
848 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1da177e4 LT |
849 | disable_acpi(); |
850 | } | |
851 | } | |
852 | #endif | |
853 | return; | |
854 | } | |
855 | ||
aea00143 AP |
856 | extern int acpi_force; |
857 | ||
858 | #ifdef __i386__ | |
859 | ||
860 | #ifdef CONFIG_ACPI_PCI | |
861 | static int __init disable_acpi_irq(struct dmi_system_id *d) | |
862 | { | |
863 | if (!acpi_force) { | |
864 | printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n", | |
865 | d->ident); | |
866 | acpi_noirq_set(); | |
867 | } | |
868 | return 0; | |
869 | } | |
870 | ||
871 | static int __init disable_acpi_pci(struct dmi_system_id *d) | |
872 | { | |
873 | if (!acpi_force) { | |
874 | printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n", | |
875 | d->ident); | |
876 | acpi_disable_pci(); | |
877 | } | |
878 | return 0; | |
879 | } | |
880 | #endif | |
881 | ||
882 | static int __init dmi_disable_acpi(struct dmi_system_id *d) | |
883 | { | |
884 | if (!acpi_force) { | |
4be44fcd | 885 | printk(KERN_NOTICE "%s detected: acpi off\n", d->ident); |
aea00143 AP |
886 | disable_acpi(); |
887 | } else { | |
888 | printk(KERN_NOTICE | |
889 | "Warning: DMI blacklist says broken, but acpi forced\n"); | |
890 | } | |
891 | return 0; | |
892 | } | |
893 | ||
894 | /* | |
895 | * Limit ACPI to CPU enumeration for HT | |
896 | */ | |
897 | static int __init force_acpi_ht(struct dmi_system_id *d) | |
898 | { | |
899 | if (!acpi_force) { | |
4be44fcd LB |
900 | printk(KERN_NOTICE "%s detected: force use of acpi=ht\n", |
901 | d->ident); | |
aea00143 AP |
902 | disable_acpi(); |
903 | acpi_ht = 1; | |
904 | } else { | |
905 | printk(KERN_NOTICE | |
906 | "Warning: acpi=force overrules DMI blacklist: acpi=ht\n"); | |
907 | } | |
908 | return 0; | |
909 | } | |
910 | ||
911 | /* | |
912 | * If your system is blacklisted here, but you find that acpi=force | |
913 | * works for you, please contact acpi-devel@sourceforge.net | |
914 | */ | |
915 | static struct dmi_system_id __initdata acpi_dmi_table[] = { | |
916 | /* | |
917 | * Boxes that need ACPI disabled | |
918 | */ | |
919 | { | |
4be44fcd LB |
920 | .callback = dmi_disable_acpi, |
921 | .ident = "IBM Thinkpad", | |
922 | .matches = { | |
923 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
924 | DMI_MATCH(DMI_BOARD_NAME, "2629H1G"), | |
925 | }, | |
926 | }, | |
aea00143 AP |
927 | |
928 | /* | |
929 | * Boxes that need acpi=ht | |
930 | */ | |
931 | { | |
4be44fcd LB |
932 | .callback = force_acpi_ht, |
933 | .ident = "FSC Primergy T850", | |
934 | .matches = { | |
935 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), | |
936 | DMI_MATCH(DMI_PRODUCT_NAME, "PRIMERGY T850"), | |
937 | }, | |
938 | }, | |
aea00143 | 939 | { |
4be44fcd LB |
940 | .callback = force_acpi_ht, |
941 | .ident = "DELL GX240", | |
942 | .matches = { | |
943 | DMI_MATCH(DMI_BOARD_VENDOR, "Dell Computer Corporation"), | |
944 | DMI_MATCH(DMI_BOARD_NAME, "OptiPlex GX240"), | |
945 | }, | |
946 | }, | |
aea00143 | 947 | { |
4be44fcd LB |
948 | .callback = force_acpi_ht, |
949 | .ident = "HP VISUALIZE NT Workstation", | |
950 | .matches = { | |
951 | DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), | |
952 | DMI_MATCH(DMI_PRODUCT_NAME, "HP VISUALIZE NT Workstation"), | |
953 | }, | |
954 | }, | |
aea00143 | 955 | { |
4be44fcd LB |
956 | .callback = force_acpi_ht, |
957 | .ident = "Compaq Workstation W8000", | |
958 | .matches = { | |
959 | DMI_MATCH(DMI_SYS_VENDOR, "Compaq"), | |
960 | DMI_MATCH(DMI_PRODUCT_NAME, "Workstation W8000"), | |
961 | }, | |
962 | }, | |
aea00143 | 963 | { |
4be44fcd LB |
964 | .callback = force_acpi_ht, |
965 | .ident = "ASUS P4B266", | |
966 | .matches = { | |
967 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
968 | DMI_MATCH(DMI_BOARD_NAME, "P4B266"), | |
969 | }, | |
970 | }, | |
aea00143 | 971 | { |
4be44fcd LB |
972 | .callback = force_acpi_ht, |
973 | .ident = "ASUS P2B-DS", | |
974 | .matches = { | |
975 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
976 | DMI_MATCH(DMI_BOARD_NAME, "P2B-DS"), | |
977 | }, | |
978 | }, | |
aea00143 | 979 | { |
4be44fcd LB |
980 | .callback = force_acpi_ht, |
981 | .ident = "ASUS CUR-DLS", | |
982 | .matches = { | |
983 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
984 | DMI_MATCH(DMI_BOARD_NAME, "CUR-DLS"), | |
985 | }, | |
986 | }, | |
aea00143 | 987 | { |
4be44fcd LB |
988 | .callback = force_acpi_ht, |
989 | .ident = "ABIT i440BX-W83977", | |
990 | .matches = { | |
991 | DMI_MATCH(DMI_BOARD_VENDOR, "ABIT <http://www.abit.com>"), | |
992 | DMI_MATCH(DMI_BOARD_NAME, "i440BX-W83977 (BP6)"), | |
993 | }, | |
994 | }, | |
aea00143 | 995 | { |
4be44fcd LB |
996 | .callback = force_acpi_ht, |
997 | .ident = "IBM Bladecenter", | |
998 | .matches = { | |
999 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1000 | DMI_MATCH(DMI_BOARD_NAME, "IBM eServer BladeCenter HS20"), | |
1001 | }, | |
1002 | }, | |
aea00143 | 1003 | { |
4be44fcd LB |
1004 | .callback = force_acpi_ht, |
1005 | .ident = "IBM eServer xSeries 360", | |
1006 | .matches = { | |
1007 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1008 | DMI_MATCH(DMI_BOARD_NAME, "eServer xSeries 360"), | |
1009 | }, | |
1010 | }, | |
aea00143 | 1011 | { |
4be44fcd LB |
1012 | .callback = force_acpi_ht, |
1013 | .ident = "IBM eserver xSeries 330", | |
1014 | .matches = { | |
1015 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1016 | DMI_MATCH(DMI_BOARD_NAME, "eserver xSeries 330"), | |
1017 | }, | |
1018 | }, | |
aea00143 | 1019 | { |
4be44fcd LB |
1020 | .callback = force_acpi_ht, |
1021 | .ident = "IBM eserver xSeries 440", | |
1022 | .matches = { | |
1023 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1024 | DMI_MATCH(DMI_PRODUCT_NAME, "eserver xSeries 440"), | |
1025 | }, | |
1026 | }, | |
aea00143 AP |
1027 | |
1028 | #ifdef CONFIG_ACPI_PCI | |
1029 | /* | |
1030 | * Boxes that need ACPI PCI IRQ routing disabled | |
1031 | */ | |
1032 | { | |
4be44fcd LB |
1033 | .callback = disable_acpi_irq, |
1034 | .ident = "ASUS A7V", | |
1035 | .matches = { | |
1036 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"), | |
1037 | DMI_MATCH(DMI_BOARD_NAME, "<A7V>"), | |
1038 | /* newer BIOS, Revision 1011, does work */ | |
1039 | DMI_MATCH(DMI_BIOS_VERSION, | |
1040 | "ASUS A7V ACPI BIOS Revision 1007"), | |
1041 | }, | |
1042 | }, | |
aea00143 AP |
1043 | |
1044 | /* | |
1045 | * Boxes that need ACPI PCI IRQ routing and PCI scan disabled | |
1046 | */ | |
4be44fcd LB |
1047 | { /* _BBN 0 bug */ |
1048 | .callback = disable_acpi_pci, | |
1049 | .ident = "ASUS PR-DLS", | |
1050 | .matches = { | |
1051 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1052 | DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"), | |
1053 | DMI_MATCH(DMI_BIOS_VERSION, | |
1054 | "ASUS PR-DLS ACPI BIOS Revision 1010"), | |
1055 | DMI_MATCH(DMI_BIOS_DATE, "03/21/2003") | |
1056 | }, | |
1057 | }, | |
aea00143 | 1058 | { |
4be44fcd LB |
1059 | .callback = disable_acpi_pci, |
1060 | .ident = "Acer TravelMate 36x Laptop", | |
1061 | .matches = { | |
1062 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
1063 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), | |
1064 | }, | |
1065 | }, | |
aea00143 | 1066 | #endif |
4be44fcd | 1067 | {} |
aea00143 AP |
1068 | }; |
1069 | ||
4be44fcd | 1070 | #endif /* __i386__ */ |
aea00143 | 1071 | |
1da177e4 LT |
1072 | /* |
1073 | * acpi_boot_table_init() and acpi_boot_init() | |
1074 | * called from setup_arch(), always. | |
1075 | * 1. checksums all tables | |
1076 | * 2. enumerates lapics | |
1077 | * 3. enumerates io-apics | |
1078 | * | |
1079 | * acpi_table_init() is separate to allow reading SRAT without | |
1080 | * other side effects. | |
1081 | * | |
1082 | * side effects of acpi_boot_init: | |
1083 | * acpi_lapic = 1 if LAPIC found | |
1084 | * acpi_ioapic = 1 if IOAPIC found | |
1085 | * if (acpi_lapic && acpi_ioapic) smp_found_config = 1; | |
1086 | * if acpi_blacklisted() acpi_disabled = 1; | |
1087 | * acpi_irq_model=... | |
1088 | * ... | |
1089 | * | |
1090 | * return value: (currently ignored) | |
1091 | * 0: success | |
1092 | * !0: failure | |
1093 | */ | |
1094 | ||
4be44fcd | 1095 | int __init acpi_boot_table_init(void) |
1da177e4 LT |
1096 | { |
1097 | int error; | |
1098 | ||
aea00143 AP |
1099 | #ifdef __i386__ |
1100 | dmi_check_system(acpi_dmi_table); | |
1101 | #endif | |
1102 | ||
1da177e4 LT |
1103 | /* |
1104 | * If acpi_disabled, bail out | |
1105 | * One exception: acpi=ht continues far enough to enumerate LAPICs | |
1106 | */ | |
1107 | if (acpi_disabled && !acpi_ht) | |
4be44fcd | 1108 | return 1; |
1da177e4 LT |
1109 | |
1110 | /* | |
1111 | * Initialize the ACPI boot-time table parser. | |
1112 | */ | |
1113 | error = acpi_table_init(); | |
1114 | if (error) { | |
1115 | disable_acpi(); | |
1116 | return error; | |
1117 | } | |
1da177e4 LT |
1118 | #ifdef __i386__ |
1119 | check_acpi_pci(); | |
1120 | #endif | |
1121 | ||
1122 | acpi_table_parse(ACPI_BOOT, acpi_parse_sbf); | |
1123 | ||
1124 | /* | |
1125 | * blacklist may disable ACPI entirely | |
1126 | */ | |
1127 | error = acpi_blacklisted(); | |
1128 | if (error) { | |
1da177e4 LT |
1129 | if (acpi_force) { |
1130 | printk(KERN_WARNING PREFIX "acpi=force override\n"); | |
1131 | } else { | |
1132 | printk(KERN_WARNING PREFIX "Disabling ACPI support\n"); | |
1133 | disable_acpi(); | |
1134 | return error; | |
1135 | } | |
1136 | } | |
1137 | ||
1138 | return 0; | |
1139 | } | |
1140 | ||
1da177e4 LT |
1141 | int __init acpi_boot_init(void) |
1142 | { | |
1143 | /* | |
1144 | * If acpi_disabled, bail out | |
1145 | * One exception: acpi=ht continues far enough to enumerate LAPICs | |
1146 | */ | |
1147 | if (acpi_disabled && !acpi_ht) | |
4be44fcd | 1148 | return 1; |
1da177e4 LT |
1149 | |
1150 | acpi_table_parse(ACPI_BOOT, acpi_parse_sbf); | |
1151 | ||
1152 | /* | |
1153 | * set sci_int and PM timer address | |
1154 | */ | |
1155 | acpi_table_parse(ACPI_FADT, acpi_parse_fadt); | |
1156 | ||
1157 | /* | |
1158 | * Process the Multiple APIC Description Table (MADT), if present | |
1159 | */ | |
1160 | acpi_process_madt(); | |
1161 | ||
1162 | acpi_table_parse(ACPI_HPET, acpi_parse_hpet); | |
1da177e4 LT |
1163 | |
1164 | return 0; | |
1165 | } |