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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> | |
1da177e4 LT |
27 | #include <linux/acpi.h> |
28 | #include <linux/efi.h> | |
1da177e4 | 29 | #include <linux/module.h> |
aea00143 | 30 | #include <linux/dmi.h> |
b33fa1f3 | 31 | #include <linux/irq.h> |
1da177e4 LT |
32 | |
33 | #include <asm/pgtable.h> | |
34 | #include <asm/io_apic.h> | |
35 | #include <asm/apic.h> | |
36 | #include <asm/io.h> | |
1da177e4 LT |
37 | #include <asm/mpspec.h> |
38 | ||
39 | #ifdef CONFIG_X86_64 | |
40 | ||
1da177e4 | 41 | extern void __init clustered_apic_check(void); |
4be44fcd | 42 | |
6004e1b7 | 43 | extern int gsi_irq_sharing(int gsi); |
1da177e4 LT |
44 | #include <asm/proto.h> |
45 | ||
637029c6 LT |
46 | static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id) { return 0; } |
47 | ||
48 | ||
4be44fcd | 49 | #else /* X86 */ |
1da177e4 LT |
50 | |
51 | #ifdef CONFIG_X86_LOCAL_APIC | |
52 | #include <mach_apic.h> | |
53 | #include <mach_mpparse.h> | |
4be44fcd | 54 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 55 | |
6004e1b7 JC |
56 | static inline int gsi_irq_sharing(int gsi) { return gsi; } |
57 | ||
4be44fcd | 58 | #endif /* X86 */ |
1da177e4 LT |
59 | |
60 | #define BAD_MADT_ENTRY(entry, end) ( \ | |
61 | (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ | |
62 | ((acpi_table_entry_header *)entry)->length != sizeof(*entry)) | |
63 | ||
64 | #define PREFIX "ACPI: " | |
65 | ||
1da177e4 | 66 | int acpi_noirq __initdata; /* skip ACPI IRQ initialization */ |
4be44fcd | 67 | int acpi_pci_disabled __initdata; /* skip ACPI PCI scan and IRQ initialization */ |
1da177e4 LT |
68 | int acpi_ht __initdata = 1; /* enable HT */ |
69 | ||
70 | int acpi_lapic; | |
71 | int acpi_ioapic; | |
72 | int acpi_strict; | |
73 | EXPORT_SYMBOL(acpi_strict); | |
74 | ||
75 | acpi_interrupt_flags acpi_sci_flags __initdata; | |
76 | int acpi_sci_override_gsi __initdata; | |
77 | int acpi_skip_timer_override __initdata; | |
78 | ||
79 | #ifdef CONFIG_X86_LOCAL_APIC | |
80 | static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; | |
81 | #endif | |
82 | ||
83 | #ifndef __HAVE_ARCH_CMPXCHG | |
84 | #warning ACPI uses CMPXCHG, i486 and later hardware | |
85 | #endif | |
86 | ||
87 | #define MAX_MADT_ENTRIES 256 | |
88 | u8 x86_acpiid_to_apicid[MAX_MADT_ENTRIES] = | |
1f3a7301 | 89 | {[0 ... MAX_MADT_ENTRIES - 1] = 0xff }; |
1da177e4 LT |
90 | EXPORT_SYMBOL(x86_acpiid_to_apicid); |
91 | ||
92 | /* -------------------------------------------------------------------------- | |
93 | Boot-time Configuration | |
94 | -------------------------------------------------------------------------- */ | |
95 | ||
96 | /* | |
97 | * The default interrupt routing model is PIC (8259). This gets | |
98 | * overriden if IOAPICs are enumerated (below). | |
99 | */ | |
4be44fcd | 100 | enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC; |
1da177e4 LT |
101 | |
102 | #ifdef CONFIG_X86_64 | |
103 | ||
104 | /* rely on all ACPI tables being in the direct mapping */ | |
105 | char *__acpi_map_table(unsigned long phys_addr, unsigned long size) | |
106 | { | |
107 | if (!phys_addr || !size) | |
4be44fcd | 108 | return NULL; |
1da177e4 | 109 | |
7a4a76cc | 110 | if (phys_addr+size <= (end_pfn_map << PAGE_SHIFT) + PAGE_SIZE) |
1da177e4 LT |
111 | return __va(phys_addr); |
112 | ||
113 | return NULL; | |
114 | } | |
115 | ||
116 | #else | |
117 | ||
118 | /* | |
119 | * Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END, | |
120 | * to map the target physical address. The problem is that set_fixmap() | |
121 | * provides a single page, and it is possible that the page is not | |
122 | * sufficient. | |
123 | * By using this area, we can map up to MAX_IO_APICS pages temporarily, | |
124 | * i.e. until the next __va_range() call. | |
125 | * | |
126 | * Important Safety Note: The fixed I/O APIC page numbers are *subtracted* | |
127 | * from the fixed base. That's why we start at FIX_IO_APIC_BASE_END and | |
128 | * count idx down while incrementing the phys address. | |
129 | */ | |
130 | char *__acpi_map_table(unsigned long phys, unsigned long size) | |
131 | { | |
132 | unsigned long base, offset, mapped_size; | |
133 | int idx; | |
134 | ||
4be44fcd LB |
135 | if (phys + size < 8 * 1024 * 1024) |
136 | return __va(phys); | |
1da177e4 LT |
137 | |
138 | offset = phys & (PAGE_SIZE - 1); | |
139 | mapped_size = PAGE_SIZE - offset; | |
140 | set_fixmap(FIX_ACPI_END, phys); | |
141 | base = fix_to_virt(FIX_ACPI_END); | |
142 | ||
143 | /* | |
144 | * Most cases can be covered by the below. | |
145 | */ | |
146 | idx = FIX_ACPI_END; | |
147 | while (mapped_size < size) { | |
148 | if (--idx < FIX_ACPI_BEGIN) | |
149 | return NULL; /* cannot handle this */ | |
150 | phys += PAGE_SIZE; | |
151 | set_fixmap(idx, phys); | |
152 | mapped_size += PAGE_SIZE; | |
153 | } | |
154 | ||
4be44fcd | 155 | return ((unsigned char *)base + offset); |
1da177e4 LT |
156 | } |
157 | #endif | |
158 | ||
159 | #ifdef CONFIG_PCI_MMCONFIG | |
54549391 GKH |
160 | /* The physical address of the MMCONFIG aperture. Set from ACPI tables. */ |
161 | struct acpi_table_mcfg_config *pci_mmcfg_config; | |
162 | int pci_mmcfg_config_num; | |
163 | ||
164 | int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size) | |
1da177e4 LT |
165 | { |
166 | struct acpi_table_mcfg *mcfg; | |
54549391 GKH |
167 | unsigned long i; |
168 | int config_size; | |
1da177e4 | 169 | |
87cb23a4 | 170 | if (!phys_addr || !size) |
1da177e4 LT |
171 | return -EINVAL; |
172 | ||
4be44fcd | 173 | mcfg = (struct acpi_table_mcfg *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
174 | if (!mcfg) { |
175 | printk(KERN_WARNING PREFIX "Unable to map MCFG\n"); | |
176 | return -ENODEV; | |
177 | } | |
178 | ||
54549391 GKH |
179 | /* how many config structures do we have */ |
180 | pci_mmcfg_config_num = 0; | |
181 | i = size - sizeof(struct acpi_table_mcfg); | |
182 | while (i >= sizeof(struct acpi_table_mcfg_config)) { | |
183 | ++pci_mmcfg_config_num; | |
184 | i -= sizeof(struct acpi_table_mcfg_config); | |
185 | }; | |
186 | if (pci_mmcfg_config_num == 0) { | |
187 | printk(KERN_ERR PREFIX "MMCONFIG has no entries\n"); | |
1da177e4 LT |
188 | return -ENODEV; |
189 | } | |
190 | ||
54549391 GKH |
191 | config_size = pci_mmcfg_config_num * sizeof(*pci_mmcfg_config); |
192 | pci_mmcfg_config = kmalloc(config_size, GFP_KERNEL); | |
193 | if (!pci_mmcfg_config) { | |
194 | printk(KERN_WARNING PREFIX | |
195 | "No memory for MCFG config tables\n"); | |
196 | return -ENOMEM; | |
197 | } | |
198 | ||
199 | memcpy(pci_mmcfg_config, &mcfg->config, config_size); | |
200 | for (i = 0; i < pci_mmcfg_config_num; ++i) { | |
201 | if (mcfg->config[i].base_reserved) { | |
202 | printk(KERN_ERR PREFIX | |
203 | "MMCONFIG not in low 4GB of memory\n"); | |
acc7c2e0 KR |
204 | kfree(pci_mmcfg_config); |
205 | pci_mmcfg_config_num = 0; | |
54549391 GKH |
206 | return -ENODEV; |
207 | } | |
208 | } | |
1da177e4 LT |
209 | |
210 | return 0; | |
211 | } | |
4be44fcd | 212 | #endif /* CONFIG_PCI_MMCONFIG */ |
1da177e4 LT |
213 | |
214 | #ifdef CONFIG_X86_LOCAL_APIC | |
4be44fcd | 215 | static int __init acpi_parse_madt(unsigned long phys_addr, unsigned long size) |
1da177e4 | 216 | { |
4be44fcd | 217 | struct acpi_table_madt *madt = NULL; |
1da177e4 | 218 | |
9cfda2c9 | 219 | if (!phys_addr || !size || !cpu_has_apic) |
1da177e4 LT |
220 | return -EINVAL; |
221 | ||
4be44fcd | 222 | madt = (struct acpi_table_madt *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
223 | if (!madt) { |
224 | printk(KERN_WARNING PREFIX "Unable to map MADT\n"); | |
225 | return -ENODEV; | |
226 | } | |
227 | ||
228 | if (madt->lapic_address) { | |
229 | acpi_lapic_addr = (u64) madt->lapic_address; | |
230 | ||
231 | printk(KERN_DEBUG PREFIX "Local APIC address 0x%08x\n", | |
4be44fcd | 232 | madt->lapic_address); |
1da177e4 LT |
233 | } |
234 | ||
235 | acpi_madt_oem_check(madt->header.oem_id, madt->header.oem_table_id); | |
4be44fcd | 236 | |
1da177e4 LT |
237 | return 0; |
238 | } | |
239 | ||
1da177e4 | 240 | static int __init |
4be44fcd | 241 | acpi_parse_lapic(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 | 242 | { |
4be44fcd | 243 | struct acpi_table_lapic *processor = NULL; |
1da177e4 | 244 | |
4be44fcd | 245 | processor = (struct acpi_table_lapic *)header; |
1da177e4 LT |
246 | |
247 | if (BAD_MADT_ENTRY(processor, end)) | |
248 | return -EINVAL; | |
249 | ||
250 | acpi_table_print_madt_entry(header); | |
251 | ||
7f66ae48 AR |
252 | /* Record local apic id only when enabled */ |
253 | if (processor->flags.enabled) | |
254 | x86_acpiid_to_apicid[processor->acpi_id] = processor->id; | |
1da177e4 | 255 | |
7f66ae48 AR |
256 | /* |
257 | * We need to register disabled CPU as well to permit | |
258 | * counting disabled CPUs. This allows us to size | |
259 | * cpus_possible_map more accurately, to permit | |
260 | * to not preallocating memory for all NR_CPUS | |
261 | * when we use CPU hotplug. | |
262 | */ | |
4be44fcd LB |
263 | mp_register_lapic(processor->id, /* APIC ID */ |
264 | processor->flags.enabled); /* Enabled? */ | |
1da177e4 LT |
265 | |
266 | return 0; | |
267 | } | |
268 | ||
269 | static int __init | |
4be44fcd LB |
270 | acpi_parse_lapic_addr_ovr(acpi_table_entry_header * header, |
271 | const unsigned long end) | |
1da177e4 LT |
272 | { |
273 | struct acpi_table_lapic_addr_ovr *lapic_addr_ovr = NULL; | |
274 | ||
4be44fcd | 275 | lapic_addr_ovr = (struct acpi_table_lapic_addr_ovr *)header; |
1da177e4 LT |
276 | |
277 | if (BAD_MADT_ENTRY(lapic_addr_ovr, end)) | |
278 | return -EINVAL; | |
279 | ||
280 | acpi_lapic_addr = lapic_addr_ovr->address; | |
281 | ||
282 | return 0; | |
283 | } | |
284 | ||
285 | static int __init | |
4be44fcd | 286 | acpi_parse_lapic_nmi(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
287 | { |
288 | struct acpi_table_lapic_nmi *lapic_nmi = NULL; | |
289 | ||
4be44fcd | 290 | lapic_nmi = (struct acpi_table_lapic_nmi *)header; |
1da177e4 LT |
291 | |
292 | if (BAD_MADT_ENTRY(lapic_nmi, end)) | |
293 | return -EINVAL; | |
294 | ||
295 | acpi_table_print_madt_entry(header); | |
296 | ||
297 | if (lapic_nmi->lint != 1) | |
298 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
299 | ||
300 | return 0; | |
301 | } | |
302 | ||
4be44fcd | 303 | #endif /*CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 304 | |
8466361a | 305 | #ifdef CONFIG_X86_IO_APIC |
1da177e4 LT |
306 | |
307 | static int __init | |
4be44fcd | 308 | acpi_parse_ioapic(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
309 | { |
310 | struct acpi_table_ioapic *ioapic = NULL; | |
311 | ||
4be44fcd | 312 | ioapic = (struct acpi_table_ioapic *)header; |
1da177e4 LT |
313 | |
314 | if (BAD_MADT_ENTRY(ioapic, end)) | |
315 | return -EINVAL; | |
4be44fcd | 316 | |
1da177e4 LT |
317 | acpi_table_print_madt_entry(header); |
318 | ||
4be44fcd LB |
319 | mp_register_ioapic(ioapic->id, |
320 | ioapic->address, ioapic->global_irq_base); | |
321 | ||
1da177e4 LT |
322 | return 0; |
323 | } | |
324 | ||
325 | /* | |
326 | * Parse Interrupt Source Override for the ACPI SCI | |
327 | */ | |
4be44fcd | 328 | static void acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger) |
1da177e4 LT |
329 | { |
330 | if (trigger == 0) /* compatible SCI trigger is level */ | |
331 | trigger = 3; | |
332 | ||
333 | if (polarity == 0) /* compatible SCI polarity is low */ | |
334 | polarity = 3; | |
335 | ||
336 | /* Command-line over-ride via acpi_sci= */ | |
337 | if (acpi_sci_flags.trigger) | |
338 | trigger = acpi_sci_flags.trigger; | |
339 | ||
340 | if (acpi_sci_flags.polarity) | |
341 | polarity = acpi_sci_flags.polarity; | |
342 | ||
343 | /* | |
4be44fcd | 344 | * mp_config_acpi_legacy_irqs() already setup IRQs < 16 |
1da177e4 LT |
345 | * If GSI is < 16, this will update its flags, |
346 | * else it will create a new mp_irqs[] entry. | |
347 | */ | |
348 | mp_override_legacy_irq(gsi, polarity, trigger, gsi); | |
349 | ||
350 | /* | |
351 | * stash over-ride to indicate we've been here | |
352 | * and for later update of acpi_fadt | |
353 | */ | |
354 | acpi_sci_override_gsi = gsi; | |
355 | return; | |
356 | } | |
357 | ||
358 | static int __init | |
4be44fcd LB |
359 | acpi_parse_int_src_ovr(acpi_table_entry_header * header, |
360 | const unsigned long end) | |
1da177e4 LT |
361 | { |
362 | struct acpi_table_int_src_ovr *intsrc = NULL; | |
363 | ||
4be44fcd | 364 | intsrc = (struct acpi_table_int_src_ovr *)header; |
1da177e4 LT |
365 | |
366 | if (BAD_MADT_ENTRY(intsrc, end)) | |
367 | return -EINVAL; | |
368 | ||
369 | acpi_table_print_madt_entry(header); | |
370 | ||
371 | if (intsrc->bus_irq == acpi_fadt.sci_int) { | |
372 | acpi_sci_ioapic_setup(intsrc->global_irq, | |
4be44fcd LB |
373 | intsrc->flags.polarity, |
374 | intsrc->flags.trigger); | |
1da177e4 LT |
375 | return 0; |
376 | } | |
377 | ||
378 | if (acpi_skip_timer_override && | |
4be44fcd LB |
379 | intsrc->bus_irq == 0 && intsrc->global_irq == 2) { |
380 | printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n"); | |
381 | return 0; | |
1da177e4 LT |
382 | } |
383 | ||
4be44fcd LB |
384 | mp_override_legacy_irq(intsrc->bus_irq, |
385 | intsrc->flags.polarity, | |
386 | intsrc->flags.trigger, intsrc->global_irq); | |
1da177e4 LT |
387 | |
388 | return 0; | |
389 | } | |
390 | ||
1da177e4 | 391 | static int __init |
4be44fcd | 392 | acpi_parse_nmi_src(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
393 | { |
394 | struct acpi_table_nmi_src *nmi_src = NULL; | |
395 | ||
4be44fcd | 396 | nmi_src = (struct acpi_table_nmi_src *)header; |
1da177e4 LT |
397 | |
398 | if (BAD_MADT_ENTRY(nmi_src, end)) | |
399 | return -EINVAL; | |
400 | ||
401 | acpi_table_print_madt_entry(header); | |
402 | ||
403 | /* TBD: Support nimsrc entries? */ | |
404 | ||
405 | return 0; | |
406 | } | |
407 | ||
4be44fcd | 408 | #endif /* CONFIG_X86_IO_APIC */ |
1da177e4 | 409 | |
1da177e4 LT |
410 | /* |
411 | * acpi_pic_sci_set_trigger() | |
412 | * | |
413 | * use ELCR to set PIC-mode trigger type for SCI | |
414 | * | |
415 | * If a PIC-mode SCI is not recognized or gives spurious IRQ7's | |
416 | * it may require Edge Trigger -- use "acpi_sci=edge" | |
417 | * | |
418 | * Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers | |
419 | * for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge. | |
420 | * ECLR1 is IRQ's 0-7 (IRQ 0, 1, 2 must be 0) | |
421 | * ECLR2 is IRQ's 8-15 (IRQ 8, 13 must be 0) | |
422 | */ | |
423 | ||
4be44fcd | 424 | void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger) |
1da177e4 LT |
425 | { |
426 | unsigned int mask = 1 << irq; | |
427 | unsigned int old, new; | |
428 | ||
429 | /* Real old ELCR mask */ | |
430 | old = inb(0x4d0) | (inb(0x4d1) << 8); | |
431 | ||
432 | /* | |
433 | * If we use ACPI to set PCI irq's, then we should clear ELCR | |
434 | * since we will set it correctly as we enable the PCI irq | |
435 | * routing. | |
436 | */ | |
437 | new = acpi_noirq ? old : 0; | |
438 | ||
439 | /* | |
440 | * Update SCI information in the ELCR, it isn't in the PCI | |
441 | * routing tables.. | |
442 | */ | |
443 | switch (trigger) { | |
4be44fcd | 444 | case 1: /* Edge - clear */ |
1da177e4 LT |
445 | new &= ~mask; |
446 | break; | |
4be44fcd | 447 | case 3: /* Level - set */ |
1da177e4 LT |
448 | new |= mask; |
449 | break; | |
450 | } | |
451 | ||
452 | if (old == new) | |
453 | return; | |
454 | ||
455 | printk(PREFIX "setting ELCR to %04x (from %04x)\n", new, old); | |
456 | outb(new, 0x4d0); | |
457 | outb(new >> 8, 0x4d1); | |
458 | } | |
459 | ||
1da177e4 LT |
460 | int acpi_gsi_to_irq(u32 gsi, unsigned int *irq) |
461 | { | |
462 | #ifdef CONFIG_X86_IO_APIC | |
463 | if (use_pci_vector() && !platform_legacy_irq(gsi)) | |
4be44fcd | 464 | *irq = IO_APIC_VECTOR(gsi); |
1da177e4 LT |
465 | else |
466 | #endif | |
6004e1b7 | 467 | *irq = gsi_irq_sharing(gsi); |
1da177e4 LT |
468 | return 0; |
469 | } | |
470 | ||
1f3a6a15 KK |
471 | /* |
472 | * success: return IRQ number (>=0) | |
473 | * failure: return < 0 | |
474 | */ | |
cb654695 | 475 | int acpi_register_gsi(u32 gsi, int triggering, int polarity) |
1da177e4 LT |
476 | { |
477 | unsigned int irq; | |
478 | unsigned int plat_gsi = gsi; | |
479 | ||
480 | #ifdef CONFIG_PCI | |
481 | /* | |
482 | * Make sure all (legacy) PCI IRQs are set as level-triggered. | |
483 | */ | |
484 | if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { | |
485 | extern void eisa_set_level_irq(unsigned int irq); | |
486 | ||
cb654695 | 487 | if (triggering == ACPI_LEVEL_SENSITIVE) |
4be44fcd | 488 | eisa_set_level_irq(gsi); |
1da177e4 LT |
489 | } |
490 | #endif | |
491 | ||
492 | #ifdef CONFIG_X86_IO_APIC | |
493 | if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC) { | |
cb654695 | 494 | plat_gsi = mp_register_gsi(gsi, triggering, polarity); |
1da177e4 LT |
495 | } |
496 | #endif | |
497 | acpi_gsi_to_irq(plat_gsi, &irq); | |
498 | return irq; | |
499 | } | |
4be44fcd | 500 | |
1da177e4 LT |
501 | EXPORT_SYMBOL(acpi_register_gsi); |
502 | ||
503 | /* | |
504 | * ACPI based hotplug support for CPU | |
505 | */ | |
506 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | |
4be44fcd | 507 | int acpi_map_lsapic(acpi_handle handle, int *pcpu) |
1da177e4 LT |
508 | { |
509 | /* TBD */ | |
510 | return -EINVAL; | |
511 | } | |
1da177e4 | 512 | |
4be44fcd | 513 | EXPORT_SYMBOL(acpi_map_lsapic); |
1da177e4 | 514 | |
4be44fcd | 515 | int acpi_unmap_lsapic(int cpu) |
1da177e4 LT |
516 | { |
517 | /* TBD */ | |
518 | return -EINVAL; | |
519 | } | |
4be44fcd | 520 | |
1da177e4 | 521 | EXPORT_SYMBOL(acpi_unmap_lsapic); |
4be44fcd | 522 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ |
1da177e4 | 523 | |
4be44fcd | 524 | int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) |
b1bb248a KK |
525 | { |
526 | /* TBD */ | |
527 | return -EINVAL; | |
528 | } | |
4be44fcd | 529 | |
b1bb248a KK |
530 | EXPORT_SYMBOL(acpi_register_ioapic); |
531 | ||
4be44fcd | 532 | int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base) |
b1bb248a KK |
533 | { |
534 | /* TBD */ | |
535 | return -EINVAL; | |
536 | } | |
4be44fcd | 537 | |
b1bb248a KK |
538 | EXPORT_SYMBOL(acpi_unregister_ioapic); |
539 | ||
1da177e4 | 540 | static unsigned long __init |
4be44fcd | 541 | acpi_scan_rsdp(unsigned long start, unsigned long length) |
1da177e4 | 542 | { |
4be44fcd LB |
543 | unsigned long offset = 0; |
544 | unsigned long sig_len = sizeof("RSD PTR ") - 1; | |
1da177e4 LT |
545 | |
546 | /* | |
547 | * Scan all 16-byte boundaries of the physical memory region for the | |
548 | * RSDP signature. | |
549 | */ | |
550 | for (offset = 0; offset < length; offset += 16) { | |
f6c2e333 | 551 | if (strncmp((char *)(phys_to_virt(start) + offset), "RSD PTR ", sig_len)) |
1da177e4 LT |
552 | continue; |
553 | return (start + offset); | |
554 | } | |
555 | ||
556 | return 0; | |
557 | } | |
558 | ||
559 | static int __init acpi_parse_sbf(unsigned long phys_addr, unsigned long size) | |
560 | { | |
561 | struct acpi_table_sbf *sb; | |
562 | ||
563 | if (!phys_addr || !size) | |
4be44fcd | 564 | return -EINVAL; |
1da177e4 | 565 | |
4be44fcd | 566 | sb = (struct acpi_table_sbf *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
567 | if (!sb) { |
568 | printk(KERN_WARNING PREFIX "Unable to map SBF\n"); | |
569 | return -ENODEV; | |
570 | } | |
571 | ||
4be44fcd | 572 | sbf_port = sb->sbf_cmos; /* Save CMOS port */ |
1da177e4 LT |
573 | |
574 | return 0; | |
575 | } | |
576 | ||
1da177e4 LT |
577 | #ifdef CONFIG_HPET_TIMER |
578 | ||
579 | static int __init acpi_parse_hpet(unsigned long phys, unsigned long size) | |
580 | { | |
581 | struct acpi_table_hpet *hpet_tbl; | |
582 | ||
583 | if (!phys || !size) | |
584 | return -EINVAL; | |
585 | ||
4be44fcd | 586 | hpet_tbl = (struct acpi_table_hpet *)__acpi_map_table(phys, size); |
1da177e4 LT |
587 | if (!hpet_tbl) { |
588 | printk(KERN_WARNING PREFIX "Unable to map HPET\n"); | |
589 | return -ENODEV; | |
590 | } | |
591 | ||
592 | if (hpet_tbl->addr.space_id != ACPI_SPACE_MEM) { | |
593 | printk(KERN_WARNING PREFIX "HPET timers must be located in " | |
594 | "memory.\n"); | |
595 | return -1; | |
596 | } | |
1da177e4 | 597 | #ifdef CONFIG_X86_64 |
4be44fcd LB |
598 | vxtime.hpet_address = hpet_tbl->addr.addrl | |
599 | ((long)hpet_tbl->addr.addrh << 32); | |
1da177e4 | 600 | |
4be44fcd LB |
601 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", |
602 | hpet_tbl->id, vxtime.hpet_address); | |
603 | #else /* X86 */ | |
1da177e4 LT |
604 | { |
605 | extern unsigned long hpet_address; | |
606 | ||
607 | hpet_address = hpet_tbl->addr.addrl; | |
608 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", | |
4be44fcd | 609 | hpet_tbl->id, hpet_address); |
1da177e4 | 610 | } |
4be44fcd | 611 | #endif /* X86 */ |
1da177e4 LT |
612 | |
613 | return 0; | |
614 | } | |
615 | #else | |
616 | #define acpi_parse_hpet NULL | |
617 | #endif | |
618 | ||
619 | #ifdef CONFIG_X86_PM_TIMER | |
620 | extern u32 pmtmr_ioport; | |
621 | #endif | |
622 | ||
623 | static int __init acpi_parse_fadt(unsigned long phys, unsigned long size) | |
624 | { | |
793c2388 | 625 | struct fadt_descriptor *fadt = NULL; |
1da177e4 | 626 | |
793c2388 | 627 | fadt = (struct fadt_descriptor *)__acpi_map_table(phys, size); |
4be44fcd | 628 | if (!fadt) { |
1da177e4 LT |
629 | printk(KERN_WARNING PREFIX "Unable to map FADT\n"); |
630 | return 0; | |
631 | } | |
1da177e4 LT |
632 | /* initialize sci_int early for INT_SRC_OVR MADT parsing */ |
633 | acpi_fadt.sci_int = fadt->sci_int; | |
1da177e4 | 634 | |
90660ec3 JD |
635 | /* initialize rev and apic_phys_dest_mode for x86_64 genapic */ |
636 | acpi_fadt.revision = fadt->revision; | |
4be44fcd LB |
637 | acpi_fadt.force_apic_physical_destination_mode = |
638 | fadt->force_apic_physical_destination_mode; | |
90660ec3 | 639 | |
1da177e4 LT |
640 | #ifdef CONFIG_X86_PM_TIMER |
641 | /* detect the location of the ACPI PM Timer */ | |
642 | if (fadt->revision >= FADT2_REVISION_ID) { | |
643 | /* FADT rev. 2 */ | |
4be44fcd LB |
644 | if (fadt->xpm_tmr_blk.address_space_id != |
645 | ACPI_ADR_SPACE_SYSTEM_IO) | |
1da177e4 LT |
646 | return 0; |
647 | ||
648 | pmtmr_ioport = fadt->xpm_tmr_blk.address; | |
e6e87b4b DSL |
649 | /* |
650 | * "X" fields are optional extensions to the original V1.0 | |
651 | * fields, so we must selectively expand V1.0 fields if the | |
652 | * corresponding X field is zero. | |
653 | */ | |
654 | if (!pmtmr_ioport) | |
655 | pmtmr_ioport = fadt->V1_pm_tmr_blk; | |
1da177e4 LT |
656 | } else { |
657 | /* FADT rev. 1 */ | |
658 | pmtmr_ioport = fadt->V1_pm_tmr_blk; | |
659 | } | |
660 | if (pmtmr_ioport) | |
4be44fcd LB |
661 | printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n", |
662 | pmtmr_ioport); | |
1da177e4 LT |
663 | #endif |
664 | return 0; | |
665 | } | |
666 | ||
4be44fcd | 667 | unsigned long __init acpi_find_rsdp(void) |
1da177e4 | 668 | { |
4be44fcd | 669 | unsigned long rsdp_phys = 0; |
1da177e4 LT |
670 | |
671 | if (efi_enabled) { | |
b2c99e3c BH |
672 | if (efi.acpi20 != EFI_INVALID_TABLE_ADDR) |
673 | return efi.acpi20; | |
674 | else if (efi.acpi != EFI_INVALID_TABLE_ADDR) | |
675 | return efi.acpi; | |
1da177e4 LT |
676 | } |
677 | /* | |
678 | * Scan memory looking for the RSDP signature. First search EBDA (low | |
679 | * memory) paragraphs and then search upper memory (E0000-FFFFF). | |
680 | */ | |
4be44fcd | 681 | rsdp_phys = acpi_scan_rsdp(0, 0x400); |
1da177e4 | 682 | if (!rsdp_phys) |
4be44fcd | 683 | rsdp_phys = acpi_scan_rsdp(0xE0000, 0x20000); |
1da177e4 LT |
684 | |
685 | return rsdp_phys; | |
686 | } | |
687 | ||
688 | #ifdef CONFIG_X86_LOCAL_APIC | |
689 | /* | |
690 | * Parse LAPIC entries in MADT | |
691 | * returns 0 on success, < 0 on error | |
692 | */ | |
4be44fcd | 693 | static int __init acpi_parse_madt_lapic_entries(void) |
1da177e4 LT |
694 | { |
695 | int count; | |
696 | ||
0fcd2709 AK |
697 | if (!cpu_has_apic) |
698 | return -ENODEV; | |
699 | ||
1da177e4 LT |
700 | /* |
701 | * Note that the LAPIC address is obtained from the MADT (32-bit value) | |
702 | * and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value). | |
703 | */ | |
704 | ||
4be44fcd LB |
705 | count = |
706 | acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR, | |
707 | acpi_parse_lapic_addr_ovr, 0); | |
1da177e4 | 708 | if (count < 0) { |
4be44fcd LB |
709 | printk(KERN_ERR PREFIX |
710 | "Error parsing LAPIC address override entry\n"); | |
1da177e4 LT |
711 | return count; |
712 | } | |
713 | ||
714 | mp_register_lapic_address(acpi_lapic_addr); | |
715 | ||
716 | count = acpi_table_parse_madt(ACPI_MADT_LAPIC, acpi_parse_lapic, | |
4be44fcd LB |
717 | MAX_APICS); |
718 | if (!count) { | |
1da177e4 LT |
719 | printk(KERN_ERR PREFIX "No LAPIC entries present\n"); |
720 | /* TBD: Cleanup to allow fallback to MPS */ | |
721 | return -ENODEV; | |
4be44fcd | 722 | } else if (count < 0) { |
1da177e4 LT |
723 | printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n"); |
724 | /* TBD: Cleanup to allow fallback to MPS */ | |
725 | return count; | |
726 | } | |
727 | ||
4be44fcd LB |
728 | count = |
729 | acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi, 0); | |
1da177e4 LT |
730 | if (count < 0) { |
731 | printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); | |
732 | /* TBD: Cleanup to allow fallback to MPS */ | |
733 | return count; | |
734 | } | |
735 | return 0; | |
736 | } | |
4be44fcd | 737 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 738 | |
8466361a | 739 | #ifdef CONFIG_X86_IO_APIC |
1da177e4 LT |
740 | /* |
741 | * Parse IOAPIC related entries in MADT | |
742 | * returns 0 on success, < 0 on error | |
743 | */ | |
4be44fcd | 744 | static int __init acpi_parse_madt_ioapic_entries(void) |
1da177e4 LT |
745 | { |
746 | int count; | |
747 | ||
748 | /* | |
749 | * ACPI interpreter is required to complete interrupt setup, | |
750 | * so if it is off, don't enumerate the io-apics with ACPI. | |
751 | * If MPS is present, it will handle them, | |
752 | * otherwise the system will stay in PIC mode | |
753 | */ | |
754 | if (acpi_disabled || acpi_noirq) { | |
755 | return -ENODEV; | |
4be44fcd | 756 | } |
1da177e4 | 757 | |
9cfda2c9 | 758 | if (!cpu_has_apic) |
d3b6a349 AK |
759 | return -ENODEV; |
760 | ||
1da177e4 | 761 | /* |
4be44fcd | 762 | * if "noapic" boot option, don't look for IO-APICs |
1da177e4 LT |
763 | */ |
764 | if (skip_ioapic_setup) { | |
765 | printk(KERN_INFO PREFIX "Skipping IOAPIC probe " | |
4be44fcd | 766 | "due to 'noapic' option.\n"); |
1da177e4 LT |
767 | return -ENODEV; |
768 | } | |
769 | ||
4be44fcd LB |
770 | count = |
771 | acpi_table_parse_madt(ACPI_MADT_IOAPIC, acpi_parse_ioapic, | |
772 | MAX_IO_APICS); | |
1da177e4 LT |
773 | if (!count) { |
774 | printk(KERN_ERR PREFIX "No IOAPIC entries present\n"); | |
775 | return -ENODEV; | |
4be44fcd | 776 | } else if (count < 0) { |
1da177e4 LT |
777 | printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n"); |
778 | return count; | |
779 | } | |
780 | ||
4be44fcd LB |
781 | count = |
782 | acpi_table_parse_madt(ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr, | |
783 | NR_IRQ_VECTORS); | |
1da177e4 | 784 | if (count < 0) { |
4be44fcd LB |
785 | printk(KERN_ERR PREFIX |
786 | "Error parsing interrupt source overrides entry\n"); | |
1da177e4 LT |
787 | /* TBD: Cleanup to allow fallback to MPS */ |
788 | return count; | |
789 | } | |
790 | ||
791 | /* | |
792 | * If BIOS did not supply an INT_SRC_OVR for the SCI | |
793 | * pretend we got one so we can set the SCI flags. | |
794 | */ | |
795 | if (!acpi_sci_override_gsi) | |
796 | acpi_sci_ioapic_setup(acpi_fadt.sci_int, 0, 0); | |
797 | ||
798 | /* Fill in identity legacy mapings where no override */ | |
799 | mp_config_acpi_legacy_irqs(); | |
800 | ||
4be44fcd LB |
801 | count = |
802 | acpi_table_parse_madt(ACPI_MADT_NMI_SRC, acpi_parse_nmi_src, | |
803 | NR_IRQ_VECTORS); | |
1da177e4 LT |
804 | if (count < 0) { |
805 | printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n"); | |
806 | /* TBD: Cleanup to allow fallback to MPS */ | |
807 | return count; | |
808 | } | |
809 | ||
810 | return 0; | |
811 | } | |
812 | #else | |
813 | static inline int acpi_parse_madt_ioapic_entries(void) | |
814 | { | |
815 | return -1; | |
816 | } | |
8466361a | 817 | #endif /* !CONFIG_X86_IO_APIC */ |
1da177e4 | 818 | |
4be44fcd | 819 | static void __init acpi_process_madt(void) |
1da177e4 LT |
820 | { |
821 | #ifdef CONFIG_X86_LOCAL_APIC | |
822 | int count, error; | |
823 | ||
824 | count = acpi_table_parse(ACPI_APIC, acpi_parse_madt); | |
825 | if (count >= 1) { | |
826 | ||
827 | /* | |
828 | * Parse MADT LAPIC entries | |
829 | */ | |
830 | error = acpi_parse_madt_lapic_entries(); | |
831 | if (!error) { | |
832 | acpi_lapic = 1; | |
833 | ||
911a62d4 VP |
834 | #ifdef CONFIG_X86_GENERICARCH |
835 | generic_bigsmp_probe(); | |
836 | #endif | |
1da177e4 LT |
837 | /* |
838 | * Parse MADT IO-APIC entries | |
839 | */ | |
840 | error = acpi_parse_madt_ioapic_entries(); | |
841 | if (!error) { | |
842 | acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; | |
843 | acpi_irq_balance_set(NULL); | |
844 | acpi_ioapic = 1; | |
845 | ||
846 | smp_found_config = 1; | |
847 | clustered_apic_check(); | |
848 | } | |
849 | } | |
850 | if (error == -EINVAL) { | |
851 | /* | |
852 | * Dell Precision Workstation 410, 610 come here. | |
853 | */ | |
4be44fcd LB |
854 | printk(KERN_ERR PREFIX |
855 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1da177e4 LT |
856 | disable_acpi(); |
857 | } | |
858 | } | |
859 | #endif | |
860 | return; | |
861 | } | |
862 | ||
aea00143 AP |
863 | extern int acpi_force; |
864 | ||
865 | #ifdef __i386__ | |
866 | ||
aea00143 AP |
867 | static int __init disable_acpi_irq(struct dmi_system_id *d) |
868 | { | |
869 | if (!acpi_force) { | |
870 | printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n", | |
871 | d->ident); | |
872 | acpi_noirq_set(); | |
873 | } | |
874 | return 0; | |
875 | } | |
876 | ||
877 | static int __init disable_acpi_pci(struct dmi_system_id *d) | |
878 | { | |
879 | if (!acpi_force) { | |
880 | printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n", | |
881 | d->ident); | |
882 | acpi_disable_pci(); | |
883 | } | |
884 | return 0; | |
885 | } | |
aea00143 AP |
886 | |
887 | static int __init dmi_disable_acpi(struct dmi_system_id *d) | |
888 | { | |
889 | if (!acpi_force) { | |
4be44fcd | 890 | printk(KERN_NOTICE "%s detected: acpi off\n", d->ident); |
aea00143 AP |
891 | disable_acpi(); |
892 | } else { | |
893 | printk(KERN_NOTICE | |
894 | "Warning: DMI blacklist says broken, but acpi forced\n"); | |
895 | } | |
896 | return 0; | |
897 | } | |
898 | ||
899 | /* | |
900 | * Limit ACPI to CPU enumeration for HT | |
901 | */ | |
902 | static int __init force_acpi_ht(struct dmi_system_id *d) | |
903 | { | |
904 | if (!acpi_force) { | |
4be44fcd LB |
905 | printk(KERN_NOTICE "%s detected: force use of acpi=ht\n", |
906 | d->ident); | |
aea00143 AP |
907 | disable_acpi(); |
908 | acpi_ht = 1; | |
909 | } else { | |
910 | printk(KERN_NOTICE | |
911 | "Warning: acpi=force overrules DMI blacklist: acpi=ht\n"); | |
912 | } | |
913 | return 0; | |
914 | } | |
915 | ||
916 | /* | |
917 | * If your system is blacklisted here, but you find that acpi=force | |
918 | * works for you, please contact acpi-devel@sourceforge.net | |
919 | */ | |
920 | static struct dmi_system_id __initdata acpi_dmi_table[] = { | |
921 | /* | |
922 | * Boxes that need ACPI disabled | |
923 | */ | |
924 | { | |
4be44fcd LB |
925 | .callback = dmi_disable_acpi, |
926 | .ident = "IBM Thinkpad", | |
927 | .matches = { | |
928 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
929 | DMI_MATCH(DMI_BOARD_NAME, "2629H1G"), | |
930 | }, | |
931 | }, | |
aea00143 AP |
932 | |
933 | /* | |
934 | * Boxes that need acpi=ht | |
935 | */ | |
936 | { | |
4be44fcd LB |
937 | .callback = force_acpi_ht, |
938 | .ident = "FSC Primergy T850", | |
939 | .matches = { | |
940 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), | |
941 | DMI_MATCH(DMI_PRODUCT_NAME, "PRIMERGY T850"), | |
942 | }, | |
943 | }, | |
aea00143 | 944 | { |
4be44fcd LB |
945 | .callback = force_acpi_ht, |
946 | .ident = "DELL GX240", | |
947 | .matches = { | |
948 | DMI_MATCH(DMI_BOARD_VENDOR, "Dell Computer Corporation"), | |
949 | DMI_MATCH(DMI_BOARD_NAME, "OptiPlex GX240"), | |
950 | }, | |
951 | }, | |
aea00143 | 952 | { |
4be44fcd LB |
953 | .callback = force_acpi_ht, |
954 | .ident = "HP VISUALIZE NT Workstation", | |
955 | .matches = { | |
956 | DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), | |
957 | DMI_MATCH(DMI_PRODUCT_NAME, "HP VISUALIZE NT Workstation"), | |
958 | }, | |
959 | }, | |
aea00143 | 960 | { |
4be44fcd LB |
961 | .callback = force_acpi_ht, |
962 | .ident = "Compaq Workstation W8000", | |
963 | .matches = { | |
964 | DMI_MATCH(DMI_SYS_VENDOR, "Compaq"), | |
965 | DMI_MATCH(DMI_PRODUCT_NAME, "Workstation W8000"), | |
966 | }, | |
967 | }, | |
aea00143 | 968 | { |
4be44fcd LB |
969 | .callback = force_acpi_ht, |
970 | .ident = "ASUS P4B266", | |
971 | .matches = { | |
972 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
973 | DMI_MATCH(DMI_BOARD_NAME, "P4B266"), | |
974 | }, | |
975 | }, | |
aea00143 | 976 | { |
4be44fcd LB |
977 | .callback = force_acpi_ht, |
978 | .ident = "ASUS P2B-DS", | |
979 | .matches = { | |
980 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
981 | DMI_MATCH(DMI_BOARD_NAME, "P2B-DS"), | |
982 | }, | |
983 | }, | |
aea00143 | 984 | { |
4be44fcd LB |
985 | .callback = force_acpi_ht, |
986 | .ident = "ASUS CUR-DLS", | |
987 | .matches = { | |
988 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
989 | DMI_MATCH(DMI_BOARD_NAME, "CUR-DLS"), | |
990 | }, | |
991 | }, | |
aea00143 | 992 | { |
4be44fcd LB |
993 | .callback = force_acpi_ht, |
994 | .ident = "ABIT i440BX-W83977", | |
995 | .matches = { | |
996 | DMI_MATCH(DMI_BOARD_VENDOR, "ABIT <http://www.abit.com>"), | |
997 | DMI_MATCH(DMI_BOARD_NAME, "i440BX-W83977 (BP6)"), | |
998 | }, | |
999 | }, | |
aea00143 | 1000 | { |
4be44fcd LB |
1001 | .callback = force_acpi_ht, |
1002 | .ident = "IBM Bladecenter", | |
1003 | .matches = { | |
1004 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1005 | DMI_MATCH(DMI_BOARD_NAME, "IBM eServer BladeCenter HS20"), | |
1006 | }, | |
1007 | }, | |
aea00143 | 1008 | { |
4be44fcd LB |
1009 | .callback = force_acpi_ht, |
1010 | .ident = "IBM eServer xSeries 360", | |
1011 | .matches = { | |
1012 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1013 | DMI_MATCH(DMI_BOARD_NAME, "eServer xSeries 360"), | |
1014 | }, | |
1015 | }, | |
aea00143 | 1016 | { |
4be44fcd LB |
1017 | .callback = force_acpi_ht, |
1018 | .ident = "IBM eserver xSeries 330", | |
1019 | .matches = { | |
1020 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1021 | DMI_MATCH(DMI_BOARD_NAME, "eserver xSeries 330"), | |
1022 | }, | |
1023 | }, | |
aea00143 | 1024 | { |
4be44fcd LB |
1025 | .callback = force_acpi_ht, |
1026 | .ident = "IBM eserver xSeries 440", | |
1027 | .matches = { | |
1028 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1029 | DMI_MATCH(DMI_PRODUCT_NAME, "eserver xSeries 440"), | |
1030 | }, | |
1031 | }, | |
aea00143 | 1032 | |
aea00143 AP |
1033 | /* |
1034 | * Boxes that need ACPI PCI IRQ routing disabled | |
1035 | */ | |
1036 | { | |
4be44fcd LB |
1037 | .callback = disable_acpi_irq, |
1038 | .ident = "ASUS A7V", | |
1039 | .matches = { | |
1040 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"), | |
1041 | DMI_MATCH(DMI_BOARD_NAME, "<A7V>"), | |
1042 | /* newer BIOS, Revision 1011, does work */ | |
1043 | DMI_MATCH(DMI_BIOS_VERSION, | |
1044 | "ASUS A7V ACPI BIOS Revision 1007"), | |
1045 | }, | |
1046 | }, | |
aea00143 AP |
1047 | |
1048 | /* | |
1049 | * Boxes that need ACPI PCI IRQ routing and PCI scan disabled | |
1050 | */ | |
4be44fcd LB |
1051 | { /* _BBN 0 bug */ |
1052 | .callback = disable_acpi_pci, | |
1053 | .ident = "ASUS PR-DLS", | |
1054 | .matches = { | |
1055 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1056 | DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"), | |
1057 | DMI_MATCH(DMI_BIOS_VERSION, | |
1058 | "ASUS PR-DLS ACPI BIOS Revision 1010"), | |
1059 | DMI_MATCH(DMI_BIOS_DATE, "03/21/2003") | |
1060 | }, | |
1061 | }, | |
aea00143 | 1062 | { |
4be44fcd LB |
1063 | .callback = disable_acpi_pci, |
1064 | .ident = "Acer TravelMate 36x Laptop", | |
1065 | .matches = { | |
1066 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
1067 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), | |
1068 | }, | |
1069 | }, | |
4be44fcd | 1070 | {} |
aea00143 AP |
1071 | }; |
1072 | ||
4be44fcd | 1073 | #endif /* __i386__ */ |
aea00143 | 1074 | |
1da177e4 LT |
1075 | /* |
1076 | * acpi_boot_table_init() and acpi_boot_init() | |
1077 | * called from setup_arch(), always. | |
1078 | * 1. checksums all tables | |
1079 | * 2. enumerates lapics | |
1080 | * 3. enumerates io-apics | |
1081 | * | |
1082 | * acpi_table_init() is separate to allow reading SRAT without | |
1083 | * other side effects. | |
1084 | * | |
1085 | * side effects of acpi_boot_init: | |
1086 | * acpi_lapic = 1 if LAPIC found | |
1087 | * acpi_ioapic = 1 if IOAPIC found | |
1088 | * if (acpi_lapic && acpi_ioapic) smp_found_config = 1; | |
1089 | * if acpi_blacklisted() acpi_disabled = 1; | |
1090 | * acpi_irq_model=... | |
1091 | * ... | |
1092 | * | |
1093 | * return value: (currently ignored) | |
1094 | * 0: success | |
1095 | * !0: failure | |
1096 | */ | |
1097 | ||
4be44fcd | 1098 | int __init acpi_boot_table_init(void) |
1da177e4 LT |
1099 | { |
1100 | int error; | |
1101 | ||
aea00143 AP |
1102 | #ifdef __i386__ |
1103 | dmi_check_system(acpi_dmi_table); | |
1104 | #endif | |
1105 | ||
1da177e4 LT |
1106 | /* |
1107 | * If acpi_disabled, bail out | |
1108 | * One exception: acpi=ht continues far enough to enumerate LAPICs | |
1109 | */ | |
1110 | if (acpi_disabled && !acpi_ht) | |
4be44fcd | 1111 | return 1; |
1da177e4 LT |
1112 | |
1113 | /* | |
1114 | * Initialize the ACPI boot-time table parser. | |
1115 | */ | |
1116 | error = acpi_table_init(); | |
1117 | if (error) { | |
1118 | disable_acpi(); | |
1119 | return error; | |
1120 | } | |
1da177e4 LT |
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 | } |