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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> | |
1da177e4 | 30 | #include <linux/module.h> |
aea00143 | 31 | #include <linux/dmi.h> |
b33fa1f3 | 32 | #include <linux/irq.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> | |
1da177e4 LT |
38 | #include <asm/mpspec.h> |
39 | ||
40 | #ifdef CONFIG_X86_64 | |
41 | ||
1da177e4 | 42 | extern void __init clustered_apic_check(void); |
4be44fcd | 43 | |
6004e1b7 | 44 | extern int gsi_irq_sharing(int gsi); |
1da177e4 LT |
45 | #include <asm/proto.h> |
46 | ||
6004e1b7 JC |
47 | static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id) { return 0; } |
48 | ||
49 | ||
4be44fcd | 50 | #else /* X86 */ |
1da177e4 LT |
51 | |
52 | #ifdef CONFIG_X86_LOCAL_APIC | |
53 | #include <mach_apic.h> | |
54 | #include <mach_mpparse.h> | |
4be44fcd | 55 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 56 | |
6004e1b7 JC |
57 | static inline int gsi_irq_sharing(int gsi) { return gsi; } |
58 | ||
4be44fcd | 59 | #endif /* X86 */ |
1da177e4 LT |
60 | |
61 | #define BAD_MADT_ENTRY(entry, end) ( \ | |
62 | (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ | |
63 | ((acpi_table_entry_header *)entry)->length != sizeof(*entry)) | |
64 | ||
65 | #define PREFIX "ACPI: " | |
66 | ||
1da177e4 | 67 | int acpi_noirq __initdata; /* skip ACPI IRQ initialization */ |
4be44fcd | 68 | int acpi_pci_disabled __initdata; /* skip ACPI PCI scan and IRQ initialization */ |
1da177e4 LT |
69 | int acpi_ht __initdata = 1; /* enable HT */ |
70 | ||
71 | int acpi_lapic; | |
72 | int acpi_ioapic; | |
73 | int acpi_strict; | |
74 | EXPORT_SYMBOL(acpi_strict); | |
75 | ||
76 | acpi_interrupt_flags acpi_sci_flags __initdata; | |
77 | int acpi_sci_override_gsi __initdata; | |
78 | int acpi_skip_timer_override __initdata; | |
79 | ||
80 | #ifdef CONFIG_X86_LOCAL_APIC | |
81 | static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; | |
82 | #endif | |
83 | ||
84 | #ifndef __HAVE_ARCH_CMPXCHG | |
85 | #warning ACPI uses CMPXCHG, i486 and later hardware | |
86 | #endif | |
87 | ||
88 | #define MAX_MADT_ENTRIES 256 | |
89 | u8 x86_acpiid_to_apicid[MAX_MADT_ENTRIES] = | |
1f3a7301 | 90 | {[0 ... MAX_MADT_ENTRIES - 1] = 0xff }; |
1da177e4 LT |
91 | EXPORT_SYMBOL(x86_acpiid_to_apicid); |
92 | ||
93 | /* -------------------------------------------------------------------------- | |
94 | Boot-time Configuration | |
95 | -------------------------------------------------------------------------- */ | |
96 | ||
97 | /* | |
98 | * The default interrupt routing model is PIC (8259). This gets | |
99 | * overriden if IOAPICs are enumerated (below). | |
100 | */ | |
4be44fcd | 101 | enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC; |
1da177e4 LT |
102 | |
103 | #ifdef CONFIG_X86_64 | |
104 | ||
105 | /* rely on all ACPI tables being in the direct mapping */ | |
106 | char *__acpi_map_table(unsigned long phys_addr, unsigned long size) | |
107 | { | |
108 | if (!phys_addr || !size) | |
4be44fcd | 109 | return NULL; |
1da177e4 LT |
110 | |
111 | if (phys_addr < (end_pfn_map << PAGE_SHIFT)) | |
112 | return __va(phys_addr); | |
113 | ||
114 | return NULL; | |
115 | } | |
116 | ||
117 | #else | |
118 | ||
119 | /* | |
120 | * Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END, | |
121 | * to map the target physical address. The problem is that set_fixmap() | |
122 | * provides a single page, and it is possible that the page is not | |
123 | * sufficient. | |
124 | * By using this area, we can map up to MAX_IO_APICS pages temporarily, | |
125 | * i.e. until the next __va_range() call. | |
126 | * | |
127 | * Important Safety Note: The fixed I/O APIC page numbers are *subtracted* | |
128 | * from the fixed base. That's why we start at FIX_IO_APIC_BASE_END and | |
129 | * count idx down while incrementing the phys address. | |
130 | */ | |
131 | char *__acpi_map_table(unsigned long phys, unsigned long size) | |
132 | { | |
133 | unsigned long base, offset, mapped_size; | |
134 | int idx; | |
135 | ||
4be44fcd LB |
136 | if (phys + size < 8 * 1024 * 1024) |
137 | return __va(phys); | |
1da177e4 LT |
138 | |
139 | offset = phys & (PAGE_SIZE - 1); | |
140 | mapped_size = PAGE_SIZE - offset; | |
141 | set_fixmap(FIX_ACPI_END, phys); | |
142 | base = fix_to_virt(FIX_ACPI_END); | |
143 | ||
144 | /* | |
145 | * Most cases can be covered by the below. | |
146 | */ | |
147 | idx = FIX_ACPI_END; | |
148 | while (mapped_size < size) { | |
149 | if (--idx < FIX_ACPI_BEGIN) | |
150 | return NULL; /* cannot handle this */ | |
151 | phys += PAGE_SIZE; | |
152 | set_fixmap(idx, phys); | |
153 | mapped_size += PAGE_SIZE; | |
154 | } | |
155 | ||
4be44fcd | 156 | return ((unsigned char *)base + offset); |
1da177e4 LT |
157 | } |
158 | #endif | |
159 | ||
160 | #ifdef CONFIG_PCI_MMCONFIG | |
54549391 GKH |
161 | /* The physical address of the MMCONFIG aperture. Set from ACPI tables. */ |
162 | struct acpi_table_mcfg_config *pci_mmcfg_config; | |
163 | int pci_mmcfg_config_num; | |
164 | ||
165 | int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size) | |
1da177e4 LT |
166 | { |
167 | struct acpi_table_mcfg *mcfg; | |
54549391 GKH |
168 | unsigned long i; |
169 | int config_size; | |
1da177e4 LT |
170 | |
171 | if (!phys_addr || !size) | |
172 | return -EINVAL; | |
173 | ||
4be44fcd | 174 | mcfg = (struct acpi_table_mcfg *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
175 | if (!mcfg) { |
176 | printk(KERN_WARNING PREFIX "Unable to map MCFG\n"); | |
177 | return -ENODEV; | |
178 | } | |
179 | ||
54549391 GKH |
180 | /* how many config structures do we have */ |
181 | pci_mmcfg_config_num = 0; | |
182 | i = size - sizeof(struct acpi_table_mcfg); | |
183 | while (i >= sizeof(struct acpi_table_mcfg_config)) { | |
184 | ++pci_mmcfg_config_num; | |
185 | i -= sizeof(struct acpi_table_mcfg_config); | |
186 | }; | |
187 | if (pci_mmcfg_config_num == 0) { | |
188 | printk(KERN_ERR PREFIX "MMCONFIG has no entries\n"); | |
1da177e4 LT |
189 | return -ENODEV; |
190 | } | |
191 | ||
54549391 GKH |
192 | config_size = pci_mmcfg_config_num * sizeof(*pci_mmcfg_config); |
193 | pci_mmcfg_config = kmalloc(config_size, GFP_KERNEL); | |
194 | if (!pci_mmcfg_config) { | |
195 | printk(KERN_WARNING PREFIX | |
196 | "No memory for MCFG config tables\n"); | |
197 | return -ENOMEM; | |
198 | } | |
199 | ||
200 | memcpy(pci_mmcfg_config, &mcfg->config, config_size); | |
201 | for (i = 0; i < pci_mmcfg_config_num; ++i) { | |
202 | if (mcfg->config[i].base_reserved) { | |
203 | printk(KERN_ERR PREFIX | |
204 | "MMCONFIG not in low 4GB of memory\n"); | |
205 | return -ENODEV; | |
206 | } | |
207 | } | |
1da177e4 LT |
208 | |
209 | return 0; | |
210 | } | |
4be44fcd | 211 | #endif /* CONFIG_PCI_MMCONFIG */ |
1da177e4 LT |
212 | |
213 | #ifdef CONFIG_X86_LOCAL_APIC | |
4be44fcd | 214 | static int __init acpi_parse_madt(unsigned long phys_addr, unsigned long size) |
1da177e4 | 215 | { |
4be44fcd | 216 | struct acpi_table_madt *madt = NULL; |
1da177e4 LT |
217 | |
218 | if (!phys_addr || !size) | |
219 | return -EINVAL; | |
220 | ||
4be44fcd | 221 | madt = (struct acpi_table_madt *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
222 | if (!madt) { |
223 | printk(KERN_WARNING PREFIX "Unable to map MADT\n"); | |
224 | return -ENODEV; | |
225 | } | |
226 | ||
227 | if (madt->lapic_address) { | |
228 | acpi_lapic_addr = (u64) madt->lapic_address; | |
229 | ||
230 | printk(KERN_DEBUG PREFIX "Local APIC address 0x%08x\n", | |
4be44fcd | 231 | madt->lapic_address); |
1da177e4 LT |
232 | } |
233 | ||
234 | acpi_madt_oem_check(madt->header.oem_id, madt->header.oem_table_id); | |
4be44fcd | 235 | |
1da177e4 LT |
236 | return 0; |
237 | } | |
238 | ||
1da177e4 | 239 | static int __init |
4be44fcd | 240 | acpi_parse_lapic(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 | 241 | { |
4be44fcd | 242 | struct acpi_table_lapic *processor = NULL; |
1da177e4 | 243 | |
4be44fcd | 244 | processor = (struct acpi_table_lapic *)header; |
1da177e4 LT |
245 | |
246 | if (BAD_MADT_ENTRY(processor, end)) | |
247 | return -EINVAL; | |
248 | ||
249 | acpi_table_print_madt_entry(header); | |
250 | ||
fbe83e20 | 251 | /* Register even disabled CPUs for cpu hotplug */ |
1da177e4 LT |
252 | |
253 | x86_acpiid_to_apicid[processor->acpi_id] = processor->id; | |
254 | ||
4be44fcd LB |
255 | mp_register_lapic(processor->id, /* APIC ID */ |
256 | processor->flags.enabled); /* Enabled? */ | |
1da177e4 LT |
257 | |
258 | return 0; | |
259 | } | |
260 | ||
261 | static int __init | |
4be44fcd LB |
262 | acpi_parse_lapic_addr_ovr(acpi_table_entry_header * header, |
263 | const unsigned long end) | |
1da177e4 LT |
264 | { |
265 | struct acpi_table_lapic_addr_ovr *lapic_addr_ovr = NULL; | |
266 | ||
4be44fcd | 267 | lapic_addr_ovr = (struct acpi_table_lapic_addr_ovr *)header; |
1da177e4 LT |
268 | |
269 | if (BAD_MADT_ENTRY(lapic_addr_ovr, end)) | |
270 | return -EINVAL; | |
271 | ||
272 | acpi_lapic_addr = lapic_addr_ovr->address; | |
273 | ||
274 | return 0; | |
275 | } | |
276 | ||
277 | static int __init | |
4be44fcd | 278 | acpi_parse_lapic_nmi(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
279 | { |
280 | struct acpi_table_lapic_nmi *lapic_nmi = NULL; | |
281 | ||
4be44fcd | 282 | lapic_nmi = (struct acpi_table_lapic_nmi *)header; |
1da177e4 LT |
283 | |
284 | if (BAD_MADT_ENTRY(lapic_nmi, end)) | |
285 | return -EINVAL; | |
286 | ||
287 | acpi_table_print_madt_entry(header); | |
288 | ||
289 | if (lapic_nmi->lint != 1) | |
290 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
291 | ||
292 | return 0; | |
293 | } | |
294 | ||
4be44fcd | 295 | #endif /*CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 296 | |
8466361a | 297 | #ifdef CONFIG_X86_IO_APIC |
1da177e4 LT |
298 | |
299 | static int __init | |
4be44fcd | 300 | acpi_parse_ioapic(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
301 | { |
302 | struct acpi_table_ioapic *ioapic = NULL; | |
303 | ||
4be44fcd | 304 | ioapic = (struct acpi_table_ioapic *)header; |
1da177e4 LT |
305 | |
306 | if (BAD_MADT_ENTRY(ioapic, end)) | |
307 | return -EINVAL; | |
4be44fcd | 308 | |
1da177e4 LT |
309 | acpi_table_print_madt_entry(header); |
310 | ||
4be44fcd LB |
311 | mp_register_ioapic(ioapic->id, |
312 | ioapic->address, ioapic->global_irq_base); | |
313 | ||
1da177e4 LT |
314 | return 0; |
315 | } | |
316 | ||
317 | /* | |
318 | * Parse Interrupt Source Override for the ACPI SCI | |
319 | */ | |
4be44fcd | 320 | static void acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger) |
1da177e4 LT |
321 | { |
322 | if (trigger == 0) /* compatible SCI trigger is level */ | |
323 | trigger = 3; | |
324 | ||
325 | if (polarity == 0) /* compatible SCI polarity is low */ | |
326 | polarity = 3; | |
327 | ||
328 | /* Command-line over-ride via acpi_sci= */ | |
329 | if (acpi_sci_flags.trigger) | |
330 | trigger = acpi_sci_flags.trigger; | |
331 | ||
332 | if (acpi_sci_flags.polarity) | |
333 | polarity = acpi_sci_flags.polarity; | |
334 | ||
335 | /* | |
4be44fcd | 336 | * mp_config_acpi_legacy_irqs() already setup IRQs < 16 |
1da177e4 LT |
337 | * If GSI is < 16, this will update its flags, |
338 | * else it will create a new mp_irqs[] entry. | |
339 | */ | |
340 | mp_override_legacy_irq(gsi, polarity, trigger, gsi); | |
341 | ||
342 | /* | |
343 | * stash over-ride to indicate we've been here | |
344 | * and for later update of acpi_fadt | |
345 | */ | |
346 | acpi_sci_override_gsi = gsi; | |
347 | return; | |
348 | } | |
349 | ||
350 | static int __init | |
4be44fcd LB |
351 | acpi_parse_int_src_ovr(acpi_table_entry_header * header, |
352 | const unsigned long end) | |
1da177e4 LT |
353 | { |
354 | struct acpi_table_int_src_ovr *intsrc = NULL; | |
355 | ||
4be44fcd | 356 | intsrc = (struct acpi_table_int_src_ovr *)header; |
1da177e4 LT |
357 | |
358 | if (BAD_MADT_ENTRY(intsrc, end)) | |
359 | return -EINVAL; | |
360 | ||
361 | acpi_table_print_madt_entry(header); | |
362 | ||
363 | if (intsrc->bus_irq == acpi_fadt.sci_int) { | |
364 | acpi_sci_ioapic_setup(intsrc->global_irq, | |
4be44fcd LB |
365 | intsrc->flags.polarity, |
366 | intsrc->flags.trigger); | |
1da177e4 LT |
367 | return 0; |
368 | } | |
369 | ||
370 | if (acpi_skip_timer_override && | |
4be44fcd LB |
371 | intsrc->bus_irq == 0 && intsrc->global_irq == 2) { |
372 | printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n"); | |
373 | return 0; | |
1da177e4 LT |
374 | } |
375 | ||
4be44fcd LB |
376 | mp_override_legacy_irq(intsrc->bus_irq, |
377 | intsrc->flags.polarity, | |
378 | intsrc->flags.trigger, intsrc->global_irq); | |
1da177e4 LT |
379 | |
380 | return 0; | |
381 | } | |
382 | ||
1da177e4 | 383 | static int __init |
4be44fcd | 384 | acpi_parse_nmi_src(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
385 | { |
386 | struct acpi_table_nmi_src *nmi_src = NULL; | |
387 | ||
4be44fcd | 388 | nmi_src = (struct acpi_table_nmi_src *)header; |
1da177e4 LT |
389 | |
390 | if (BAD_MADT_ENTRY(nmi_src, end)) | |
391 | return -EINVAL; | |
392 | ||
393 | acpi_table_print_madt_entry(header); | |
394 | ||
395 | /* TBD: Support nimsrc entries? */ | |
396 | ||
397 | return 0; | |
398 | } | |
399 | ||
4be44fcd | 400 | #endif /* CONFIG_X86_IO_APIC */ |
1da177e4 | 401 | |
1da177e4 LT |
402 | /* |
403 | * acpi_pic_sci_set_trigger() | |
404 | * | |
405 | * use ELCR to set PIC-mode trigger type for SCI | |
406 | * | |
407 | * If a PIC-mode SCI is not recognized or gives spurious IRQ7's | |
408 | * it may require Edge Trigger -- use "acpi_sci=edge" | |
409 | * | |
410 | * Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers | |
411 | * for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge. | |
412 | * ECLR1 is IRQ's 0-7 (IRQ 0, 1, 2 must be 0) | |
413 | * ECLR2 is IRQ's 8-15 (IRQ 8, 13 must be 0) | |
414 | */ | |
415 | ||
4be44fcd | 416 | void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger) |
1da177e4 LT |
417 | { |
418 | unsigned int mask = 1 << irq; | |
419 | unsigned int old, new; | |
420 | ||
421 | /* Real old ELCR mask */ | |
422 | old = inb(0x4d0) | (inb(0x4d1) << 8); | |
423 | ||
424 | /* | |
425 | * If we use ACPI to set PCI irq's, then we should clear ELCR | |
426 | * since we will set it correctly as we enable the PCI irq | |
427 | * routing. | |
428 | */ | |
429 | new = acpi_noirq ? old : 0; | |
430 | ||
431 | /* | |
432 | * Update SCI information in the ELCR, it isn't in the PCI | |
433 | * routing tables.. | |
434 | */ | |
435 | switch (trigger) { | |
4be44fcd | 436 | case 1: /* Edge - clear */ |
1da177e4 LT |
437 | new &= ~mask; |
438 | break; | |
4be44fcd | 439 | case 3: /* Level - set */ |
1da177e4 LT |
440 | new |= mask; |
441 | break; | |
442 | } | |
443 | ||
444 | if (old == new) | |
445 | return; | |
446 | ||
447 | printk(PREFIX "setting ELCR to %04x (from %04x)\n", new, old); | |
448 | outb(new, 0x4d0); | |
449 | outb(new >> 8, 0x4d1); | |
450 | } | |
451 | ||
1da177e4 LT |
452 | int acpi_gsi_to_irq(u32 gsi, unsigned int *irq) |
453 | { | |
454 | #ifdef CONFIG_X86_IO_APIC | |
455 | if (use_pci_vector() && !platform_legacy_irq(gsi)) | |
4be44fcd | 456 | *irq = IO_APIC_VECTOR(gsi); |
1da177e4 LT |
457 | else |
458 | #endif | |
6004e1b7 | 459 | *irq = gsi_irq_sharing(gsi); |
1da177e4 LT |
460 | return 0; |
461 | } | |
462 | ||
1f3a6a15 KK |
463 | /* |
464 | * success: return IRQ number (>=0) | |
465 | * failure: return < 0 | |
466 | */ | |
cb654695 | 467 | int acpi_register_gsi(u32 gsi, int triggering, int polarity) |
1da177e4 LT |
468 | { |
469 | unsigned int irq; | |
470 | unsigned int plat_gsi = gsi; | |
471 | ||
472 | #ifdef CONFIG_PCI | |
473 | /* | |
474 | * Make sure all (legacy) PCI IRQs are set as level-triggered. | |
475 | */ | |
476 | if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { | |
477 | extern void eisa_set_level_irq(unsigned int irq); | |
478 | ||
cb654695 | 479 | if (triggering == ACPI_LEVEL_SENSITIVE) |
4be44fcd | 480 | eisa_set_level_irq(gsi); |
1da177e4 LT |
481 | } |
482 | #endif | |
483 | ||
484 | #ifdef CONFIG_X86_IO_APIC | |
485 | if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC) { | |
cb654695 | 486 | plat_gsi = mp_register_gsi(gsi, triggering, polarity); |
1da177e4 LT |
487 | } |
488 | #endif | |
489 | acpi_gsi_to_irq(plat_gsi, &irq); | |
490 | return irq; | |
491 | } | |
4be44fcd | 492 | |
1da177e4 LT |
493 | EXPORT_SYMBOL(acpi_register_gsi); |
494 | ||
495 | /* | |
496 | * ACPI based hotplug support for CPU | |
497 | */ | |
498 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | |
4be44fcd | 499 | int acpi_map_lsapic(acpi_handle handle, int *pcpu) |
1da177e4 LT |
500 | { |
501 | /* TBD */ | |
502 | return -EINVAL; | |
503 | } | |
1da177e4 | 504 | |
4be44fcd | 505 | EXPORT_SYMBOL(acpi_map_lsapic); |
1da177e4 | 506 | |
4be44fcd | 507 | int acpi_unmap_lsapic(int cpu) |
1da177e4 LT |
508 | { |
509 | /* TBD */ | |
510 | return -EINVAL; | |
511 | } | |
4be44fcd | 512 | |
1da177e4 | 513 | EXPORT_SYMBOL(acpi_unmap_lsapic); |
4be44fcd | 514 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ |
1da177e4 | 515 | |
4be44fcd | 516 | int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) |
b1bb248a KK |
517 | { |
518 | /* TBD */ | |
519 | return -EINVAL; | |
520 | } | |
4be44fcd | 521 | |
b1bb248a KK |
522 | EXPORT_SYMBOL(acpi_register_ioapic); |
523 | ||
4be44fcd | 524 | int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base) |
b1bb248a KK |
525 | { |
526 | /* TBD */ | |
527 | return -EINVAL; | |
528 | } | |
4be44fcd | 529 | |
b1bb248a KK |
530 | EXPORT_SYMBOL(acpi_unregister_ioapic); |
531 | ||
1da177e4 | 532 | static unsigned long __init |
4be44fcd | 533 | acpi_scan_rsdp(unsigned long start, unsigned long length) |
1da177e4 | 534 | { |
4be44fcd LB |
535 | unsigned long offset = 0; |
536 | unsigned long sig_len = sizeof("RSD PTR ") - 1; | |
1da177e4 LT |
537 | |
538 | /* | |
539 | * Scan all 16-byte boundaries of the physical memory region for the | |
540 | * RSDP signature. | |
541 | */ | |
542 | for (offset = 0; offset < length; offset += 16) { | |
f6c2e333 | 543 | if (strncmp((char *)(phys_to_virt(start) + offset), "RSD PTR ", sig_len)) |
1da177e4 LT |
544 | continue; |
545 | return (start + offset); | |
546 | } | |
547 | ||
548 | return 0; | |
549 | } | |
550 | ||
551 | static int __init acpi_parse_sbf(unsigned long phys_addr, unsigned long size) | |
552 | { | |
553 | struct acpi_table_sbf *sb; | |
554 | ||
555 | if (!phys_addr || !size) | |
4be44fcd | 556 | return -EINVAL; |
1da177e4 | 557 | |
4be44fcd | 558 | sb = (struct acpi_table_sbf *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
559 | if (!sb) { |
560 | printk(KERN_WARNING PREFIX "Unable to map SBF\n"); | |
561 | return -ENODEV; | |
562 | } | |
563 | ||
4be44fcd | 564 | sbf_port = sb->sbf_cmos; /* Save CMOS port */ |
1da177e4 LT |
565 | |
566 | return 0; | |
567 | } | |
568 | ||
1da177e4 LT |
569 | #ifdef CONFIG_HPET_TIMER |
570 | ||
571 | static int __init acpi_parse_hpet(unsigned long phys, unsigned long size) | |
572 | { | |
573 | struct acpi_table_hpet *hpet_tbl; | |
574 | ||
575 | if (!phys || !size) | |
576 | return -EINVAL; | |
577 | ||
4be44fcd | 578 | hpet_tbl = (struct acpi_table_hpet *)__acpi_map_table(phys, size); |
1da177e4 LT |
579 | if (!hpet_tbl) { |
580 | printk(KERN_WARNING PREFIX "Unable to map HPET\n"); | |
581 | return -ENODEV; | |
582 | } | |
583 | ||
584 | if (hpet_tbl->addr.space_id != ACPI_SPACE_MEM) { | |
585 | printk(KERN_WARNING PREFIX "HPET timers must be located in " | |
586 | "memory.\n"); | |
587 | return -1; | |
588 | } | |
1da177e4 | 589 | #ifdef CONFIG_X86_64 |
4be44fcd LB |
590 | vxtime.hpet_address = hpet_tbl->addr.addrl | |
591 | ((long)hpet_tbl->addr.addrh << 32); | |
1da177e4 | 592 | |
4be44fcd LB |
593 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", |
594 | hpet_tbl->id, vxtime.hpet_address); | |
595 | #else /* X86 */ | |
1da177e4 LT |
596 | { |
597 | extern unsigned long hpet_address; | |
598 | ||
599 | hpet_address = hpet_tbl->addr.addrl; | |
600 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", | |
4be44fcd | 601 | hpet_tbl->id, hpet_address); |
1da177e4 | 602 | } |
4be44fcd | 603 | #endif /* X86 */ |
1da177e4 LT |
604 | |
605 | return 0; | |
606 | } | |
607 | #else | |
608 | #define acpi_parse_hpet NULL | |
609 | #endif | |
610 | ||
611 | #ifdef CONFIG_X86_PM_TIMER | |
612 | extern u32 pmtmr_ioport; | |
613 | #endif | |
614 | ||
615 | static int __init acpi_parse_fadt(unsigned long phys, unsigned long size) | |
616 | { | |
617 | struct fadt_descriptor_rev2 *fadt = NULL; | |
618 | ||
4be44fcd LB |
619 | fadt = (struct fadt_descriptor_rev2 *)__acpi_map_table(phys, size); |
620 | if (!fadt) { | |
1da177e4 LT |
621 | printk(KERN_WARNING PREFIX "Unable to map FADT\n"); |
622 | return 0; | |
623 | } | |
1da177e4 LT |
624 | /* initialize sci_int early for INT_SRC_OVR MADT parsing */ |
625 | acpi_fadt.sci_int = fadt->sci_int; | |
1da177e4 | 626 | |
90660ec3 JD |
627 | /* initialize rev and apic_phys_dest_mode for x86_64 genapic */ |
628 | acpi_fadt.revision = fadt->revision; | |
4be44fcd LB |
629 | acpi_fadt.force_apic_physical_destination_mode = |
630 | fadt->force_apic_physical_destination_mode; | |
90660ec3 | 631 | |
1da177e4 LT |
632 | #ifdef CONFIG_X86_PM_TIMER |
633 | /* detect the location of the ACPI PM Timer */ | |
634 | if (fadt->revision >= FADT2_REVISION_ID) { | |
635 | /* FADT rev. 2 */ | |
4be44fcd LB |
636 | if (fadt->xpm_tmr_blk.address_space_id != |
637 | ACPI_ADR_SPACE_SYSTEM_IO) | |
1da177e4 LT |
638 | return 0; |
639 | ||
640 | pmtmr_ioport = fadt->xpm_tmr_blk.address; | |
e6e87b4b DSL |
641 | /* |
642 | * "X" fields are optional extensions to the original V1.0 | |
643 | * fields, so we must selectively expand V1.0 fields if the | |
644 | * corresponding X field is zero. | |
645 | */ | |
646 | if (!pmtmr_ioport) | |
647 | pmtmr_ioport = fadt->V1_pm_tmr_blk; | |
1da177e4 LT |
648 | } else { |
649 | /* FADT rev. 1 */ | |
650 | pmtmr_ioport = fadt->V1_pm_tmr_blk; | |
651 | } | |
652 | if (pmtmr_ioport) | |
4be44fcd LB |
653 | printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n", |
654 | pmtmr_ioport); | |
1da177e4 LT |
655 | #endif |
656 | return 0; | |
657 | } | |
658 | ||
4be44fcd | 659 | unsigned long __init acpi_find_rsdp(void) |
1da177e4 | 660 | { |
4be44fcd | 661 | unsigned long rsdp_phys = 0; |
1da177e4 LT |
662 | |
663 | if (efi_enabled) { | |
664 | if (efi.acpi20) | |
665 | return __pa(efi.acpi20); | |
666 | else if (efi.acpi) | |
667 | return __pa(efi.acpi); | |
668 | } | |
669 | /* | |
670 | * Scan memory looking for the RSDP signature. First search EBDA (low | |
671 | * memory) paragraphs and then search upper memory (E0000-FFFFF). | |
672 | */ | |
4be44fcd | 673 | rsdp_phys = acpi_scan_rsdp(0, 0x400); |
1da177e4 | 674 | if (!rsdp_phys) |
4be44fcd | 675 | rsdp_phys = acpi_scan_rsdp(0xE0000, 0x20000); |
1da177e4 LT |
676 | |
677 | return rsdp_phys; | |
678 | } | |
679 | ||
680 | #ifdef CONFIG_X86_LOCAL_APIC | |
681 | /* | |
682 | * Parse LAPIC entries in MADT | |
683 | * returns 0 on success, < 0 on error | |
684 | */ | |
4be44fcd | 685 | static int __init acpi_parse_madt_lapic_entries(void) |
1da177e4 LT |
686 | { |
687 | int count; | |
688 | ||
689 | /* | |
690 | * Note that the LAPIC address is obtained from the MADT (32-bit value) | |
691 | * and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value). | |
692 | */ | |
693 | ||
4be44fcd LB |
694 | count = |
695 | acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR, | |
696 | acpi_parse_lapic_addr_ovr, 0); | |
1da177e4 | 697 | if (count < 0) { |
4be44fcd LB |
698 | printk(KERN_ERR PREFIX |
699 | "Error parsing LAPIC address override entry\n"); | |
1da177e4 LT |
700 | return count; |
701 | } | |
702 | ||
703 | mp_register_lapic_address(acpi_lapic_addr); | |
704 | ||
705 | count = acpi_table_parse_madt(ACPI_MADT_LAPIC, acpi_parse_lapic, | |
4be44fcd LB |
706 | MAX_APICS); |
707 | if (!count) { | |
1da177e4 LT |
708 | printk(KERN_ERR PREFIX "No LAPIC entries present\n"); |
709 | /* TBD: Cleanup to allow fallback to MPS */ | |
710 | return -ENODEV; | |
4be44fcd | 711 | } else if (count < 0) { |
1da177e4 LT |
712 | printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n"); |
713 | /* TBD: Cleanup to allow fallback to MPS */ | |
714 | return count; | |
715 | } | |
716 | ||
4be44fcd LB |
717 | count = |
718 | acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi, 0); | |
1da177e4 LT |
719 | if (count < 0) { |
720 | printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); | |
721 | /* TBD: Cleanup to allow fallback to MPS */ | |
722 | return count; | |
723 | } | |
724 | return 0; | |
725 | } | |
4be44fcd | 726 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 727 | |
8466361a | 728 | #ifdef CONFIG_X86_IO_APIC |
1da177e4 LT |
729 | /* |
730 | * Parse IOAPIC related entries in MADT | |
731 | * returns 0 on success, < 0 on error | |
732 | */ | |
4be44fcd | 733 | static int __init acpi_parse_madt_ioapic_entries(void) |
1da177e4 LT |
734 | { |
735 | int count; | |
736 | ||
737 | /* | |
738 | * ACPI interpreter is required to complete interrupt setup, | |
739 | * so if it is off, don't enumerate the io-apics with ACPI. | |
740 | * If MPS is present, it will handle them, | |
741 | * otherwise the system will stay in PIC mode | |
742 | */ | |
743 | if (acpi_disabled || acpi_noirq) { | |
744 | return -ENODEV; | |
4be44fcd | 745 | } |
1da177e4 LT |
746 | |
747 | /* | |
4be44fcd | 748 | * if "noapic" boot option, don't look for IO-APICs |
1da177e4 LT |
749 | */ |
750 | if (skip_ioapic_setup) { | |
751 | printk(KERN_INFO PREFIX "Skipping IOAPIC probe " | |
4be44fcd | 752 | "due to 'noapic' option.\n"); |
1da177e4 LT |
753 | return -ENODEV; |
754 | } | |
755 | ||
4be44fcd LB |
756 | count = |
757 | acpi_table_parse_madt(ACPI_MADT_IOAPIC, acpi_parse_ioapic, | |
758 | MAX_IO_APICS); | |
1da177e4 LT |
759 | if (!count) { |
760 | printk(KERN_ERR PREFIX "No IOAPIC entries present\n"); | |
761 | return -ENODEV; | |
4be44fcd | 762 | } else if (count < 0) { |
1da177e4 LT |
763 | printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n"); |
764 | return count; | |
765 | } | |
766 | ||
4be44fcd LB |
767 | count = |
768 | acpi_table_parse_madt(ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr, | |
769 | NR_IRQ_VECTORS); | |
1da177e4 | 770 | if (count < 0) { |
4be44fcd LB |
771 | printk(KERN_ERR PREFIX |
772 | "Error parsing interrupt source overrides entry\n"); | |
1da177e4 LT |
773 | /* TBD: Cleanup to allow fallback to MPS */ |
774 | return count; | |
775 | } | |
776 | ||
777 | /* | |
778 | * If BIOS did not supply an INT_SRC_OVR for the SCI | |
779 | * pretend we got one so we can set the SCI flags. | |
780 | */ | |
781 | if (!acpi_sci_override_gsi) | |
782 | acpi_sci_ioapic_setup(acpi_fadt.sci_int, 0, 0); | |
783 | ||
784 | /* Fill in identity legacy mapings where no override */ | |
785 | mp_config_acpi_legacy_irqs(); | |
786 | ||
4be44fcd LB |
787 | count = |
788 | acpi_table_parse_madt(ACPI_MADT_NMI_SRC, acpi_parse_nmi_src, | |
789 | NR_IRQ_VECTORS); | |
1da177e4 LT |
790 | if (count < 0) { |
791 | printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n"); | |
792 | /* TBD: Cleanup to allow fallback to MPS */ | |
793 | return count; | |
794 | } | |
795 | ||
796 | return 0; | |
797 | } | |
798 | #else | |
799 | static inline int acpi_parse_madt_ioapic_entries(void) | |
800 | { | |
801 | return -1; | |
802 | } | |
8466361a | 803 | #endif /* !CONFIG_X86_IO_APIC */ |
1da177e4 | 804 | |
4be44fcd | 805 | static void __init acpi_process_madt(void) |
1da177e4 LT |
806 | { |
807 | #ifdef CONFIG_X86_LOCAL_APIC | |
808 | int count, error; | |
809 | ||
810 | count = acpi_table_parse(ACPI_APIC, acpi_parse_madt); | |
811 | if (count >= 1) { | |
812 | ||
813 | /* | |
814 | * Parse MADT LAPIC entries | |
815 | */ | |
816 | error = acpi_parse_madt_lapic_entries(); | |
817 | if (!error) { | |
818 | acpi_lapic = 1; | |
819 | ||
911a62d4 VP |
820 | #ifdef CONFIG_X86_GENERICARCH |
821 | generic_bigsmp_probe(); | |
822 | #endif | |
1da177e4 LT |
823 | /* |
824 | * Parse MADT IO-APIC entries | |
825 | */ | |
826 | error = acpi_parse_madt_ioapic_entries(); | |
827 | if (!error) { | |
828 | acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; | |
829 | acpi_irq_balance_set(NULL); | |
830 | acpi_ioapic = 1; | |
831 | ||
832 | smp_found_config = 1; | |
833 | clustered_apic_check(); | |
834 | } | |
835 | } | |
836 | if (error == -EINVAL) { | |
837 | /* | |
838 | * Dell Precision Workstation 410, 610 come here. | |
839 | */ | |
4be44fcd LB |
840 | printk(KERN_ERR PREFIX |
841 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1da177e4 LT |
842 | disable_acpi(); |
843 | } | |
844 | } | |
845 | #endif | |
846 | return; | |
847 | } | |
848 | ||
aea00143 AP |
849 | extern int acpi_force; |
850 | ||
851 | #ifdef __i386__ | |
852 | ||
aea00143 AP |
853 | static int __init disable_acpi_irq(struct dmi_system_id *d) |
854 | { | |
855 | if (!acpi_force) { | |
856 | printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n", | |
857 | d->ident); | |
858 | acpi_noirq_set(); | |
859 | } | |
860 | return 0; | |
861 | } | |
862 | ||
863 | static int __init disable_acpi_pci(struct dmi_system_id *d) | |
864 | { | |
865 | if (!acpi_force) { | |
866 | printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n", | |
867 | d->ident); | |
868 | acpi_disable_pci(); | |
869 | } | |
870 | return 0; | |
871 | } | |
aea00143 AP |
872 | |
873 | static int __init dmi_disable_acpi(struct dmi_system_id *d) | |
874 | { | |
875 | if (!acpi_force) { | |
4be44fcd | 876 | printk(KERN_NOTICE "%s detected: acpi off\n", d->ident); |
aea00143 AP |
877 | disable_acpi(); |
878 | } else { | |
879 | printk(KERN_NOTICE | |
880 | "Warning: DMI blacklist says broken, but acpi forced\n"); | |
881 | } | |
882 | return 0; | |
883 | } | |
884 | ||
885 | /* | |
886 | * Limit ACPI to CPU enumeration for HT | |
887 | */ | |
888 | static int __init force_acpi_ht(struct dmi_system_id *d) | |
889 | { | |
890 | if (!acpi_force) { | |
4be44fcd LB |
891 | printk(KERN_NOTICE "%s detected: force use of acpi=ht\n", |
892 | d->ident); | |
aea00143 AP |
893 | disable_acpi(); |
894 | acpi_ht = 1; | |
895 | } else { | |
896 | printk(KERN_NOTICE | |
897 | "Warning: acpi=force overrules DMI blacklist: acpi=ht\n"); | |
898 | } | |
899 | return 0; | |
900 | } | |
901 | ||
902 | /* | |
903 | * If your system is blacklisted here, but you find that acpi=force | |
904 | * works for you, please contact acpi-devel@sourceforge.net | |
905 | */ | |
906 | static struct dmi_system_id __initdata acpi_dmi_table[] = { | |
907 | /* | |
908 | * Boxes that need ACPI disabled | |
909 | */ | |
910 | { | |
4be44fcd LB |
911 | .callback = dmi_disable_acpi, |
912 | .ident = "IBM Thinkpad", | |
913 | .matches = { | |
914 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
915 | DMI_MATCH(DMI_BOARD_NAME, "2629H1G"), | |
916 | }, | |
917 | }, | |
aea00143 AP |
918 | |
919 | /* | |
920 | * Boxes that need acpi=ht | |
921 | */ | |
922 | { | |
4be44fcd LB |
923 | .callback = force_acpi_ht, |
924 | .ident = "FSC Primergy T850", | |
925 | .matches = { | |
926 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), | |
927 | DMI_MATCH(DMI_PRODUCT_NAME, "PRIMERGY T850"), | |
928 | }, | |
929 | }, | |
aea00143 | 930 | { |
4be44fcd LB |
931 | .callback = force_acpi_ht, |
932 | .ident = "DELL GX240", | |
933 | .matches = { | |
934 | DMI_MATCH(DMI_BOARD_VENDOR, "Dell Computer Corporation"), | |
935 | DMI_MATCH(DMI_BOARD_NAME, "OptiPlex GX240"), | |
936 | }, | |
937 | }, | |
aea00143 | 938 | { |
4be44fcd LB |
939 | .callback = force_acpi_ht, |
940 | .ident = "HP VISUALIZE NT Workstation", | |
941 | .matches = { | |
942 | DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), | |
943 | DMI_MATCH(DMI_PRODUCT_NAME, "HP VISUALIZE NT Workstation"), | |
944 | }, | |
945 | }, | |
aea00143 | 946 | { |
4be44fcd LB |
947 | .callback = force_acpi_ht, |
948 | .ident = "Compaq Workstation W8000", | |
949 | .matches = { | |
950 | DMI_MATCH(DMI_SYS_VENDOR, "Compaq"), | |
951 | DMI_MATCH(DMI_PRODUCT_NAME, "Workstation W8000"), | |
952 | }, | |
953 | }, | |
aea00143 | 954 | { |
4be44fcd LB |
955 | .callback = force_acpi_ht, |
956 | .ident = "ASUS P4B266", | |
957 | .matches = { | |
958 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
959 | DMI_MATCH(DMI_BOARD_NAME, "P4B266"), | |
960 | }, | |
961 | }, | |
aea00143 | 962 | { |
4be44fcd LB |
963 | .callback = force_acpi_ht, |
964 | .ident = "ASUS P2B-DS", | |
965 | .matches = { | |
966 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
967 | DMI_MATCH(DMI_BOARD_NAME, "P2B-DS"), | |
968 | }, | |
969 | }, | |
aea00143 | 970 | { |
4be44fcd LB |
971 | .callback = force_acpi_ht, |
972 | .ident = "ASUS CUR-DLS", | |
973 | .matches = { | |
974 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
975 | DMI_MATCH(DMI_BOARD_NAME, "CUR-DLS"), | |
976 | }, | |
977 | }, | |
aea00143 | 978 | { |
4be44fcd LB |
979 | .callback = force_acpi_ht, |
980 | .ident = "ABIT i440BX-W83977", | |
981 | .matches = { | |
982 | DMI_MATCH(DMI_BOARD_VENDOR, "ABIT <http://www.abit.com>"), | |
983 | DMI_MATCH(DMI_BOARD_NAME, "i440BX-W83977 (BP6)"), | |
984 | }, | |
985 | }, | |
aea00143 | 986 | { |
4be44fcd LB |
987 | .callback = force_acpi_ht, |
988 | .ident = "IBM Bladecenter", | |
989 | .matches = { | |
990 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
991 | DMI_MATCH(DMI_BOARD_NAME, "IBM eServer BladeCenter HS20"), | |
992 | }, | |
993 | }, | |
aea00143 | 994 | { |
4be44fcd LB |
995 | .callback = force_acpi_ht, |
996 | .ident = "IBM eServer xSeries 360", | |
997 | .matches = { | |
998 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
999 | DMI_MATCH(DMI_BOARD_NAME, "eServer xSeries 360"), | |
1000 | }, | |
1001 | }, | |
aea00143 | 1002 | { |
4be44fcd LB |
1003 | .callback = force_acpi_ht, |
1004 | .ident = "IBM eserver xSeries 330", | |
1005 | .matches = { | |
1006 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1007 | DMI_MATCH(DMI_BOARD_NAME, "eserver xSeries 330"), | |
1008 | }, | |
1009 | }, | |
aea00143 | 1010 | { |
4be44fcd LB |
1011 | .callback = force_acpi_ht, |
1012 | .ident = "IBM eserver xSeries 440", | |
1013 | .matches = { | |
1014 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1015 | DMI_MATCH(DMI_PRODUCT_NAME, "eserver xSeries 440"), | |
1016 | }, | |
1017 | }, | |
aea00143 | 1018 | |
aea00143 AP |
1019 | /* |
1020 | * Boxes that need ACPI PCI IRQ routing disabled | |
1021 | */ | |
1022 | { | |
4be44fcd LB |
1023 | .callback = disable_acpi_irq, |
1024 | .ident = "ASUS A7V", | |
1025 | .matches = { | |
1026 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"), | |
1027 | DMI_MATCH(DMI_BOARD_NAME, "<A7V>"), | |
1028 | /* newer BIOS, Revision 1011, does work */ | |
1029 | DMI_MATCH(DMI_BIOS_VERSION, | |
1030 | "ASUS A7V ACPI BIOS Revision 1007"), | |
1031 | }, | |
1032 | }, | |
aea00143 AP |
1033 | |
1034 | /* | |
1035 | * Boxes that need ACPI PCI IRQ routing and PCI scan disabled | |
1036 | */ | |
4be44fcd LB |
1037 | { /* _BBN 0 bug */ |
1038 | .callback = disable_acpi_pci, | |
1039 | .ident = "ASUS PR-DLS", | |
1040 | .matches = { | |
1041 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1042 | DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"), | |
1043 | DMI_MATCH(DMI_BIOS_VERSION, | |
1044 | "ASUS PR-DLS ACPI BIOS Revision 1010"), | |
1045 | DMI_MATCH(DMI_BIOS_DATE, "03/21/2003") | |
1046 | }, | |
1047 | }, | |
aea00143 | 1048 | { |
4be44fcd LB |
1049 | .callback = disable_acpi_pci, |
1050 | .ident = "Acer TravelMate 36x Laptop", | |
1051 | .matches = { | |
1052 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
1053 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), | |
1054 | }, | |
1055 | }, | |
4be44fcd | 1056 | {} |
aea00143 AP |
1057 | }; |
1058 | ||
4be44fcd | 1059 | #endif /* __i386__ */ |
aea00143 | 1060 | |
1da177e4 LT |
1061 | /* |
1062 | * acpi_boot_table_init() and acpi_boot_init() | |
1063 | * called from setup_arch(), always. | |
1064 | * 1. checksums all tables | |
1065 | * 2. enumerates lapics | |
1066 | * 3. enumerates io-apics | |
1067 | * | |
1068 | * acpi_table_init() is separate to allow reading SRAT without | |
1069 | * other side effects. | |
1070 | * | |
1071 | * side effects of acpi_boot_init: | |
1072 | * acpi_lapic = 1 if LAPIC found | |
1073 | * acpi_ioapic = 1 if IOAPIC found | |
1074 | * if (acpi_lapic && acpi_ioapic) smp_found_config = 1; | |
1075 | * if acpi_blacklisted() acpi_disabled = 1; | |
1076 | * acpi_irq_model=... | |
1077 | * ... | |
1078 | * | |
1079 | * return value: (currently ignored) | |
1080 | * 0: success | |
1081 | * !0: failure | |
1082 | */ | |
1083 | ||
4be44fcd | 1084 | int __init acpi_boot_table_init(void) |
1da177e4 LT |
1085 | { |
1086 | int error; | |
1087 | ||
aea00143 AP |
1088 | #ifdef __i386__ |
1089 | dmi_check_system(acpi_dmi_table); | |
1090 | #endif | |
1091 | ||
1da177e4 LT |
1092 | /* |
1093 | * If acpi_disabled, bail out | |
1094 | * One exception: acpi=ht continues far enough to enumerate LAPICs | |
1095 | */ | |
1096 | if (acpi_disabled && !acpi_ht) | |
4be44fcd | 1097 | return 1; |
1da177e4 LT |
1098 | |
1099 | /* | |
1100 | * Initialize the ACPI boot-time table parser. | |
1101 | */ | |
1102 | error = acpi_table_init(); | |
1103 | if (error) { | |
1104 | disable_acpi(); | |
1105 | return error; | |
1106 | } | |
1da177e4 LT |
1107 | #ifdef __i386__ |
1108 | check_acpi_pci(); | |
1109 | #endif | |
1110 | ||
1111 | acpi_table_parse(ACPI_BOOT, acpi_parse_sbf); | |
1112 | ||
1113 | /* | |
1114 | * blacklist may disable ACPI entirely | |
1115 | */ | |
1116 | error = acpi_blacklisted(); | |
1117 | if (error) { | |
1da177e4 LT |
1118 | if (acpi_force) { |
1119 | printk(KERN_WARNING PREFIX "acpi=force override\n"); | |
1120 | } else { | |
1121 | printk(KERN_WARNING PREFIX "Disabling ACPI support\n"); | |
1122 | disable_acpi(); | |
1123 | return error; | |
1124 | } | |
1125 | } | |
1126 | ||
1127 | return 0; | |
1128 | } | |
1129 | ||
1da177e4 LT |
1130 | int __init acpi_boot_init(void) |
1131 | { | |
1132 | /* | |
1133 | * If acpi_disabled, bail out | |
1134 | * One exception: acpi=ht continues far enough to enumerate LAPICs | |
1135 | */ | |
1136 | if (acpi_disabled && !acpi_ht) | |
4be44fcd | 1137 | return 1; |
1da177e4 LT |
1138 | |
1139 | acpi_table_parse(ACPI_BOOT, acpi_parse_sbf); | |
1140 | ||
1141 | /* | |
1142 | * set sci_int and PM timer address | |
1143 | */ | |
1144 | acpi_table_parse(ACPI_FADT, acpi_parse_fadt); | |
1145 | ||
1146 | /* | |
1147 | * Process the Multiple APIC Description Table (MADT), if present | |
1148 | */ | |
1149 | acpi_process_madt(); | |
1150 | ||
1151 | acpi_table_parse(ACPI_HPET, acpi_parse_hpet); | |
1da177e4 LT |
1152 | |
1153 | return 0; | |
1154 | } |