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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 | ||
1a3f239d RR |
39 | int __initdata acpi_force = 0; |
40 | ||
df3bb57d AK |
41 | #ifdef CONFIG_ACPI |
42 | int acpi_disabled = 0; | |
43 | #else | |
44 | int acpi_disabled = 1; | |
45 | #endif | |
46 | EXPORT_SYMBOL(acpi_disabled); | |
47 | ||
1da177e4 LT |
48 | #ifdef CONFIG_X86_64 |
49 | ||
1da177e4 LT |
50 | #include <asm/proto.h> |
51 | ||
637029c6 LT |
52 | static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id) { return 0; } |
53 | ||
54 | ||
4be44fcd | 55 | #else /* X86 */ |
1da177e4 LT |
56 | |
57 | #ifdef CONFIG_X86_LOCAL_APIC | |
58 | #include <mach_apic.h> | |
59 | #include <mach_mpparse.h> | |
4be44fcd | 60 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 61 | |
6004e1b7 JC |
62 | static inline int gsi_irq_sharing(int gsi) { return gsi; } |
63 | ||
4be44fcd | 64 | #endif /* X86 */ |
1da177e4 LT |
65 | |
66 | #define BAD_MADT_ENTRY(entry, end) ( \ | |
67 | (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ | |
df6fd319 | 68 | ((acpi_table_entry_header *)entry)->length < sizeof(*entry)) |
1da177e4 LT |
69 | |
70 | #define PREFIX "ACPI: " | |
71 | ||
1da177e4 | 72 | int acpi_noirq __initdata; /* skip ACPI IRQ initialization */ |
4be44fcd | 73 | int acpi_pci_disabled __initdata; /* skip ACPI PCI scan and IRQ initialization */ |
1da177e4 LT |
74 | int acpi_ht __initdata = 1; /* enable HT */ |
75 | ||
76 | int acpi_lapic; | |
77 | int acpi_ioapic; | |
78 | int acpi_strict; | |
79 | EXPORT_SYMBOL(acpi_strict); | |
80 | ||
81 | acpi_interrupt_flags acpi_sci_flags __initdata; | |
82 | int acpi_sci_override_gsi __initdata; | |
83 | int acpi_skip_timer_override __initdata; | |
84 | ||
85 | #ifdef CONFIG_X86_LOCAL_APIC | |
86 | static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; | |
87 | #endif | |
88 | ||
89 | #ifndef __HAVE_ARCH_CMPXCHG | |
90 | #warning ACPI uses CMPXCHG, i486 and later hardware | |
91 | #endif | |
92 | ||
93 | #define MAX_MADT_ENTRIES 256 | |
94 | u8 x86_acpiid_to_apicid[MAX_MADT_ENTRIES] = | |
1f3a7301 | 95 | {[0 ... MAX_MADT_ENTRIES - 1] = 0xff }; |
1da177e4 LT |
96 | EXPORT_SYMBOL(x86_acpiid_to_apicid); |
97 | ||
98 | /* -------------------------------------------------------------------------- | |
99 | Boot-time Configuration | |
100 | -------------------------------------------------------------------------- */ | |
101 | ||
102 | /* | |
103 | * The default interrupt routing model is PIC (8259). This gets | |
104 | * overriden if IOAPICs are enumerated (below). | |
105 | */ | |
4be44fcd | 106 | enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC; |
1da177e4 LT |
107 | |
108 | #ifdef CONFIG_X86_64 | |
109 | ||
110 | /* rely on all ACPI tables being in the direct mapping */ | |
111 | char *__acpi_map_table(unsigned long phys_addr, unsigned long size) | |
112 | { | |
113 | if (!phys_addr || !size) | |
4be44fcd | 114 | return NULL; |
1da177e4 | 115 | |
7a4a76cc | 116 | if (phys_addr+size <= (end_pfn_map << PAGE_SHIFT) + PAGE_SIZE) |
1da177e4 LT |
117 | return __va(phys_addr); |
118 | ||
119 | return NULL; | |
120 | } | |
121 | ||
122 | #else | |
123 | ||
124 | /* | |
125 | * Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END, | |
126 | * to map the target physical address. The problem is that set_fixmap() | |
127 | * provides a single page, and it is possible that the page is not | |
128 | * sufficient. | |
129 | * By using this area, we can map up to MAX_IO_APICS pages temporarily, | |
130 | * i.e. until the next __va_range() call. | |
131 | * | |
132 | * Important Safety Note: The fixed I/O APIC page numbers are *subtracted* | |
133 | * from the fixed base. That's why we start at FIX_IO_APIC_BASE_END and | |
134 | * count idx down while incrementing the phys address. | |
135 | */ | |
136 | char *__acpi_map_table(unsigned long phys, unsigned long size) | |
137 | { | |
138 | unsigned long base, offset, mapped_size; | |
139 | int idx; | |
140 | ||
4be44fcd LB |
141 | if (phys + size < 8 * 1024 * 1024) |
142 | return __va(phys); | |
1da177e4 LT |
143 | |
144 | offset = phys & (PAGE_SIZE - 1); | |
145 | mapped_size = PAGE_SIZE - offset; | |
146 | set_fixmap(FIX_ACPI_END, phys); | |
147 | base = fix_to_virt(FIX_ACPI_END); | |
148 | ||
149 | /* | |
150 | * Most cases can be covered by the below. | |
151 | */ | |
152 | idx = FIX_ACPI_END; | |
153 | while (mapped_size < size) { | |
154 | if (--idx < FIX_ACPI_BEGIN) | |
155 | return NULL; /* cannot handle this */ | |
156 | phys += PAGE_SIZE; | |
157 | set_fixmap(idx, phys); | |
158 | mapped_size += PAGE_SIZE; | |
159 | } | |
160 | ||
4be44fcd | 161 | return ((unsigned char *)base + offset); |
1da177e4 LT |
162 | } |
163 | #endif | |
164 | ||
165 | #ifdef CONFIG_PCI_MMCONFIG | |
54549391 GKH |
166 | /* The physical address of the MMCONFIG aperture. Set from ACPI tables. */ |
167 | struct acpi_table_mcfg_config *pci_mmcfg_config; | |
168 | int pci_mmcfg_config_num; | |
169 | ||
170 | int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size) | |
1da177e4 LT |
171 | { |
172 | struct acpi_table_mcfg *mcfg; | |
54549391 GKH |
173 | unsigned long i; |
174 | int config_size; | |
1da177e4 | 175 | |
87cb23a4 | 176 | if (!phys_addr || !size) |
1da177e4 LT |
177 | return -EINVAL; |
178 | ||
4be44fcd | 179 | mcfg = (struct acpi_table_mcfg *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
180 | if (!mcfg) { |
181 | printk(KERN_WARNING PREFIX "Unable to map MCFG\n"); | |
182 | return -ENODEV; | |
183 | } | |
184 | ||
54549391 GKH |
185 | /* how many config structures do we have */ |
186 | pci_mmcfg_config_num = 0; | |
187 | i = size - sizeof(struct acpi_table_mcfg); | |
188 | while (i >= sizeof(struct acpi_table_mcfg_config)) { | |
189 | ++pci_mmcfg_config_num; | |
190 | i -= sizeof(struct acpi_table_mcfg_config); | |
191 | }; | |
192 | if (pci_mmcfg_config_num == 0) { | |
193 | printk(KERN_ERR PREFIX "MMCONFIG has no entries\n"); | |
1da177e4 LT |
194 | return -ENODEV; |
195 | } | |
196 | ||
54549391 GKH |
197 | config_size = pci_mmcfg_config_num * sizeof(*pci_mmcfg_config); |
198 | pci_mmcfg_config = kmalloc(config_size, GFP_KERNEL); | |
199 | if (!pci_mmcfg_config) { | |
200 | printk(KERN_WARNING PREFIX | |
201 | "No memory for MCFG config tables\n"); | |
202 | return -ENOMEM; | |
203 | } | |
204 | ||
205 | memcpy(pci_mmcfg_config, &mcfg->config, config_size); | |
206 | for (i = 0; i < pci_mmcfg_config_num; ++i) { | |
207 | if (mcfg->config[i].base_reserved) { | |
208 | printk(KERN_ERR PREFIX | |
209 | "MMCONFIG not in low 4GB of memory\n"); | |
acc7c2e0 KR |
210 | kfree(pci_mmcfg_config); |
211 | pci_mmcfg_config_num = 0; | |
54549391 GKH |
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 | 224 | |
9cfda2c9 | 225 | if (!phys_addr || !size || !cpu_has_apic) |
1da177e4 LT |
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 | ||
7f66ae48 AR |
258 | /* Record local apic id only when enabled */ |
259 | if (processor->flags.enabled) | |
260 | x86_acpiid_to_apicid[processor->acpi_id] = processor->id; | |
1da177e4 | 261 | |
7f66ae48 AR |
262 | /* |
263 | * We need to register disabled CPU as well to permit | |
264 | * counting disabled CPUs. This allows us to size | |
265 | * cpus_possible_map more accurately, to permit | |
266 | * to not preallocating memory for all NR_CPUS | |
267 | * when we use CPU hotplug. | |
268 | */ | |
4be44fcd LB |
269 | mp_register_lapic(processor->id, /* APIC ID */ |
270 | processor->flags.enabled); /* Enabled? */ | |
1da177e4 LT |
271 | |
272 | return 0; | |
273 | } | |
274 | ||
275 | static int __init | |
4be44fcd LB |
276 | acpi_parse_lapic_addr_ovr(acpi_table_entry_header * header, |
277 | const unsigned long end) | |
1da177e4 LT |
278 | { |
279 | struct acpi_table_lapic_addr_ovr *lapic_addr_ovr = NULL; | |
280 | ||
4be44fcd | 281 | lapic_addr_ovr = (struct acpi_table_lapic_addr_ovr *)header; |
1da177e4 LT |
282 | |
283 | if (BAD_MADT_ENTRY(lapic_addr_ovr, end)) | |
284 | return -EINVAL; | |
285 | ||
286 | acpi_lapic_addr = lapic_addr_ovr->address; | |
287 | ||
288 | return 0; | |
289 | } | |
290 | ||
291 | static int __init | |
4be44fcd | 292 | acpi_parse_lapic_nmi(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
293 | { |
294 | struct acpi_table_lapic_nmi *lapic_nmi = NULL; | |
295 | ||
4be44fcd | 296 | lapic_nmi = (struct acpi_table_lapic_nmi *)header; |
1da177e4 LT |
297 | |
298 | if (BAD_MADT_ENTRY(lapic_nmi, end)) | |
299 | return -EINVAL; | |
300 | ||
301 | acpi_table_print_madt_entry(header); | |
302 | ||
303 | if (lapic_nmi->lint != 1) | |
304 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
305 | ||
306 | return 0; | |
307 | } | |
308 | ||
4be44fcd | 309 | #endif /*CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 310 | |
8466361a | 311 | #ifdef CONFIG_X86_IO_APIC |
1da177e4 LT |
312 | |
313 | static int __init | |
4be44fcd | 314 | acpi_parse_ioapic(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
315 | { |
316 | struct acpi_table_ioapic *ioapic = NULL; | |
317 | ||
4be44fcd | 318 | ioapic = (struct acpi_table_ioapic *)header; |
1da177e4 LT |
319 | |
320 | if (BAD_MADT_ENTRY(ioapic, end)) | |
321 | return -EINVAL; | |
4be44fcd | 322 | |
1da177e4 LT |
323 | acpi_table_print_madt_entry(header); |
324 | ||
4be44fcd LB |
325 | mp_register_ioapic(ioapic->id, |
326 | ioapic->address, ioapic->global_irq_base); | |
327 | ||
1da177e4 LT |
328 | return 0; |
329 | } | |
330 | ||
331 | /* | |
332 | * Parse Interrupt Source Override for the ACPI SCI | |
333 | */ | |
4be44fcd | 334 | static void acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger) |
1da177e4 LT |
335 | { |
336 | if (trigger == 0) /* compatible SCI trigger is level */ | |
337 | trigger = 3; | |
338 | ||
339 | if (polarity == 0) /* compatible SCI polarity is low */ | |
340 | polarity = 3; | |
341 | ||
342 | /* Command-line over-ride via acpi_sci= */ | |
343 | if (acpi_sci_flags.trigger) | |
344 | trigger = acpi_sci_flags.trigger; | |
345 | ||
346 | if (acpi_sci_flags.polarity) | |
347 | polarity = acpi_sci_flags.polarity; | |
348 | ||
349 | /* | |
4be44fcd | 350 | * mp_config_acpi_legacy_irqs() already setup IRQs < 16 |
1da177e4 LT |
351 | * If GSI is < 16, this will update its flags, |
352 | * else it will create a new mp_irqs[] entry. | |
353 | */ | |
354 | mp_override_legacy_irq(gsi, polarity, trigger, gsi); | |
355 | ||
356 | /* | |
357 | * stash over-ride to indicate we've been here | |
358 | * and for later update of acpi_fadt | |
359 | */ | |
360 | acpi_sci_override_gsi = gsi; | |
361 | return; | |
362 | } | |
363 | ||
364 | static int __init | |
4be44fcd LB |
365 | acpi_parse_int_src_ovr(acpi_table_entry_header * header, |
366 | const unsigned long end) | |
1da177e4 LT |
367 | { |
368 | struct acpi_table_int_src_ovr *intsrc = NULL; | |
369 | ||
4be44fcd | 370 | intsrc = (struct acpi_table_int_src_ovr *)header; |
1da177e4 LT |
371 | |
372 | if (BAD_MADT_ENTRY(intsrc, end)) | |
373 | return -EINVAL; | |
374 | ||
375 | acpi_table_print_madt_entry(header); | |
376 | ||
377 | if (intsrc->bus_irq == acpi_fadt.sci_int) { | |
378 | acpi_sci_ioapic_setup(intsrc->global_irq, | |
4be44fcd LB |
379 | intsrc->flags.polarity, |
380 | intsrc->flags.trigger); | |
1da177e4 LT |
381 | return 0; |
382 | } | |
383 | ||
384 | if (acpi_skip_timer_override && | |
4be44fcd LB |
385 | intsrc->bus_irq == 0 && intsrc->global_irq == 2) { |
386 | printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n"); | |
387 | return 0; | |
1da177e4 LT |
388 | } |
389 | ||
4be44fcd LB |
390 | mp_override_legacy_irq(intsrc->bus_irq, |
391 | intsrc->flags.polarity, | |
392 | intsrc->flags.trigger, intsrc->global_irq); | |
1da177e4 LT |
393 | |
394 | return 0; | |
395 | } | |
396 | ||
1da177e4 | 397 | static int __init |
4be44fcd | 398 | acpi_parse_nmi_src(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
399 | { |
400 | struct acpi_table_nmi_src *nmi_src = NULL; | |
401 | ||
4be44fcd | 402 | nmi_src = (struct acpi_table_nmi_src *)header; |
1da177e4 LT |
403 | |
404 | if (BAD_MADT_ENTRY(nmi_src, end)) | |
405 | return -EINVAL; | |
406 | ||
407 | acpi_table_print_madt_entry(header); | |
408 | ||
409 | /* TBD: Support nimsrc entries? */ | |
410 | ||
411 | return 0; | |
412 | } | |
413 | ||
4be44fcd | 414 | #endif /* CONFIG_X86_IO_APIC */ |
1da177e4 | 415 | |
1da177e4 LT |
416 | /* |
417 | * acpi_pic_sci_set_trigger() | |
418 | * | |
419 | * use ELCR to set PIC-mode trigger type for SCI | |
420 | * | |
421 | * If a PIC-mode SCI is not recognized or gives spurious IRQ7's | |
422 | * it may require Edge Trigger -- use "acpi_sci=edge" | |
423 | * | |
424 | * Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers | |
425 | * for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge. | |
426 | * ECLR1 is IRQ's 0-7 (IRQ 0, 1, 2 must be 0) | |
427 | * ECLR2 is IRQ's 8-15 (IRQ 8, 13 must be 0) | |
428 | */ | |
429 | ||
4be44fcd | 430 | void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger) |
1da177e4 LT |
431 | { |
432 | unsigned int mask = 1 << irq; | |
433 | unsigned int old, new; | |
434 | ||
435 | /* Real old ELCR mask */ | |
436 | old = inb(0x4d0) | (inb(0x4d1) << 8); | |
437 | ||
438 | /* | |
439 | * If we use ACPI to set PCI irq's, then we should clear ELCR | |
440 | * since we will set it correctly as we enable the PCI irq | |
441 | * routing. | |
442 | */ | |
443 | new = acpi_noirq ? old : 0; | |
444 | ||
445 | /* | |
446 | * Update SCI information in the ELCR, it isn't in the PCI | |
447 | * routing tables.. | |
448 | */ | |
449 | switch (trigger) { | |
4be44fcd | 450 | case 1: /* Edge - clear */ |
1da177e4 LT |
451 | new &= ~mask; |
452 | break; | |
4be44fcd | 453 | case 3: /* Level - set */ |
1da177e4 LT |
454 | new |= mask; |
455 | break; | |
456 | } | |
457 | ||
458 | if (old == new) | |
459 | return; | |
460 | ||
461 | printk(PREFIX "setting ELCR to %04x (from %04x)\n", new, old); | |
462 | outb(new, 0x4d0); | |
463 | outb(new >> 8, 0x4d1); | |
464 | } | |
465 | ||
1da177e4 LT |
466 | int acpi_gsi_to_irq(u32 gsi, unsigned int *irq) |
467 | { | |
468 | #ifdef CONFIG_X86_IO_APIC | |
469 | if (use_pci_vector() && !platform_legacy_irq(gsi)) | |
4be44fcd | 470 | *irq = IO_APIC_VECTOR(gsi); |
1da177e4 LT |
471 | else |
472 | #endif | |
6004e1b7 | 473 | *irq = gsi_irq_sharing(gsi); |
1da177e4 LT |
474 | return 0; |
475 | } | |
476 | ||
1f3a6a15 KK |
477 | /* |
478 | * success: return IRQ number (>=0) | |
479 | * failure: return < 0 | |
480 | */ | |
cb654695 | 481 | int acpi_register_gsi(u32 gsi, int triggering, int polarity) |
1da177e4 LT |
482 | { |
483 | unsigned int irq; | |
484 | unsigned int plat_gsi = gsi; | |
485 | ||
486 | #ifdef CONFIG_PCI | |
487 | /* | |
488 | * Make sure all (legacy) PCI IRQs are set as level-triggered. | |
489 | */ | |
490 | if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { | |
491 | extern void eisa_set_level_irq(unsigned int irq); | |
492 | ||
cb654695 | 493 | if (triggering == ACPI_LEVEL_SENSITIVE) |
4be44fcd | 494 | eisa_set_level_irq(gsi); |
1da177e4 LT |
495 | } |
496 | #endif | |
497 | ||
498 | #ifdef CONFIG_X86_IO_APIC | |
499 | if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC) { | |
cb654695 | 500 | plat_gsi = mp_register_gsi(gsi, triggering, polarity); |
1da177e4 LT |
501 | } |
502 | #endif | |
503 | acpi_gsi_to_irq(plat_gsi, &irq); | |
504 | return irq; | |
505 | } | |
4be44fcd | 506 | |
1da177e4 LT |
507 | EXPORT_SYMBOL(acpi_register_gsi); |
508 | ||
509 | /* | |
510 | * ACPI based hotplug support for CPU | |
511 | */ | |
512 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | |
4be44fcd | 513 | int acpi_map_lsapic(acpi_handle handle, int *pcpu) |
1da177e4 LT |
514 | { |
515 | /* TBD */ | |
516 | return -EINVAL; | |
517 | } | |
1da177e4 | 518 | |
4be44fcd | 519 | EXPORT_SYMBOL(acpi_map_lsapic); |
1da177e4 | 520 | |
4be44fcd | 521 | int acpi_unmap_lsapic(int cpu) |
1da177e4 LT |
522 | { |
523 | /* TBD */ | |
524 | return -EINVAL; | |
525 | } | |
4be44fcd | 526 | |
1da177e4 | 527 | EXPORT_SYMBOL(acpi_unmap_lsapic); |
4be44fcd | 528 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ |
1da177e4 | 529 | |
4be44fcd | 530 | int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) |
b1bb248a KK |
531 | { |
532 | /* TBD */ | |
533 | return -EINVAL; | |
534 | } | |
4be44fcd | 535 | |
b1bb248a KK |
536 | EXPORT_SYMBOL(acpi_register_ioapic); |
537 | ||
4be44fcd | 538 | int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base) |
b1bb248a KK |
539 | { |
540 | /* TBD */ | |
541 | return -EINVAL; | |
542 | } | |
4be44fcd | 543 | |
b1bb248a KK |
544 | EXPORT_SYMBOL(acpi_unregister_ioapic); |
545 | ||
1da177e4 | 546 | static unsigned long __init |
4be44fcd | 547 | acpi_scan_rsdp(unsigned long start, unsigned long length) |
1da177e4 | 548 | { |
4be44fcd LB |
549 | unsigned long offset = 0; |
550 | unsigned long sig_len = sizeof("RSD PTR ") - 1; | |
1da177e4 LT |
551 | |
552 | /* | |
553 | * Scan all 16-byte boundaries of the physical memory region for the | |
554 | * RSDP signature. | |
555 | */ | |
556 | for (offset = 0; offset < length; offset += 16) { | |
f6c2e333 | 557 | if (strncmp((char *)(phys_to_virt(start) + offset), "RSD PTR ", sig_len)) |
1da177e4 LT |
558 | continue; |
559 | return (start + offset); | |
560 | } | |
561 | ||
562 | return 0; | |
563 | } | |
564 | ||
565 | static int __init acpi_parse_sbf(unsigned long phys_addr, unsigned long size) | |
566 | { | |
567 | struct acpi_table_sbf *sb; | |
568 | ||
569 | if (!phys_addr || !size) | |
4be44fcd | 570 | return -EINVAL; |
1da177e4 | 571 | |
4be44fcd | 572 | sb = (struct acpi_table_sbf *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
573 | if (!sb) { |
574 | printk(KERN_WARNING PREFIX "Unable to map SBF\n"); | |
575 | return -ENODEV; | |
576 | } | |
577 | ||
4be44fcd | 578 | sbf_port = sb->sbf_cmos; /* Save CMOS port */ |
1da177e4 LT |
579 | |
580 | return 0; | |
581 | } | |
582 | ||
1da177e4 LT |
583 | #ifdef CONFIG_HPET_TIMER |
584 | ||
585 | static int __init acpi_parse_hpet(unsigned long phys, unsigned long size) | |
586 | { | |
587 | struct acpi_table_hpet *hpet_tbl; | |
588 | ||
589 | if (!phys || !size) | |
590 | return -EINVAL; | |
591 | ||
4be44fcd | 592 | hpet_tbl = (struct acpi_table_hpet *)__acpi_map_table(phys, size); |
1da177e4 LT |
593 | if (!hpet_tbl) { |
594 | printk(KERN_WARNING PREFIX "Unable to map HPET\n"); | |
595 | return -ENODEV; | |
596 | } | |
597 | ||
598 | if (hpet_tbl->addr.space_id != ACPI_SPACE_MEM) { | |
599 | printk(KERN_WARNING PREFIX "HPET timers must be located in " | |
600 | "memory.\n"); | |
601 | return -1; | |
602 | } | |
1da177e4 | 603 | #ifdef CONFIG_X86_64 |
4be44fcd LB |
604 | vxtime.hpet_address = hpet_tbl->addr.addrl | |
605 | ((long)hpet_tbl->addr.addrh << 32); | |
1da177e4 | 606 | |
4be44fcd LB |
607 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", |
608 | hpet_tbl->id, vxtime.hpet_address); | |
609 | #else /* X86 */ | |
1da177e4 LT |
610 | { |
611 | extern unsigned long hpet_address; | |
612 | ||
613 | hpet_address = hpet_tbl->addr.addrl; | |
614 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", | |
4be44fcd | 615 | hpet_tbl->id, hpet_address); |
1da177e4 | 616 | } |
4be44fcd | 617 | #endif /* X86 */ |
1da177e4 LT |
618 | |
619 | return 0; | |
620 | } | |
621 | #else | |
622 | #define acpi_parse_hpet NULL | |
623 | #endif | |
624 | ||
625 | #ifdef CONFIG_X86_PM_TIMER | |
626 | extern u32 pmtmr_ioport; | |
627 | #endif | |
628 | ||
629 | static int __init acpi_parse_fadt(unsigned long phys, unsigned long size) | |
630 | { | |
793c2388 | 631 | struct fadt_descriptor *fadt = NULL; |
1da177e4 | 632 | |
793c2388 | 633 | fadt = (struct fadt_descriptor *)__acpi_map_table(phys, size); |
4be44fcd | 634 | if (!fadt) { |
1da177e4 LT |
635 | printk(KERN_WARNING PREFIX "Unable to map FADT\n"); |
636 | return 0; | |
637 | } | |
1da177e4 LT |
638 | /* initialize sci_int early for INT_SRC_OVR MADT parsing */ |
639 | acpi_fadt.sci_int = fadt->sci_int; | |
1da177e4 | 640 | |
90660ec3 JD |
641 | /* initialize rev and apic_phys_dest_mode for x86_64 genapic */ |
642 | acpi_fadt.revision = fadt->revision; | |
4be44fcd LB |
643 | acpi_fadt.force_apic_physical_destination_mode = |
644 | fadt->force_apic_physical_destination_mode; | |
90660ec3 | 645 | |
1da177e4 LT |
646 | #ifdef CONFIG_X86_PM_TIMER |
647 | /* detect the location of the ACPI PM Timer */ | |
648 | if (fadt->revision >= FADT2_REVISION_ID) { | |
649 | /* FADT rev. 2 */ | |
4be44fcd LB |
650 | if (fadt->xpm_tmr_blk.address_space_id != |
651 | ACPI_ADR_SPACE_SYSTEM_IO) | |
1da177e4 LT |
652 | return 0; |
653 | ||
654 | pmtmr_ioport = fadt->xpm_tmr_blk.address; | |
e6e87b4b DSL |
655 | /* |
656 | * "X" fields are optional extensions to the original V1.0 | |
657 | * fields, so we must selectively expand V1.0 fields if the | |
658 | * corresponding X field is zero. | |
659 | */ | |
660 | if (!pmtmr_ioport) | |
661 | pmtmr_ioport = fadt->V1_pm_tmr_blk; | |
1da177e4 LT |
662 | } else { |
663 | /* FADT rev. 1 */ | |
664 | pmtmr_ioport = fadt->V1_pm_tmr_blk; | |
665 | } | |
666 | if (pmtmr_ioport) | |
4be44fcd LB |
667 | printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n", |
668 | pmtmr_ioport); | |
1da177e4 LT |
669 | #endif |
670 | return 0; | |
671 | } | |
672 | ||
4be44fcd | 673 | unsigned long __init acpi_find_rsdp(void) |
1da177e4 | 674 | { |
4be44fcd | 675 | unsigned long rsdp_phys = 0; |
1da177e4 LT |
676 | |
677 | if (efi_enabled) { | |
b2c99e3c BH |
678 | if (efi.acpi20 != EFI_INVALID_TABLE_ADDR) |
679 | return efi.acpi20; | |
680 | else if (efi.acpi != EFI_INVALID_TABLE_ADDR) | |
681 | return efi.acpi; | |
1da177e4 LT |
682 | } |
683 | /* | |
684 | * Scan memory looking for the RSDP signature. First search EBDA (low | |
685 | * memory) paragraphs and then search upper memory (E0000-FFFFF). | |
686 | */ | |
4be44fcd | 687 | rsdp_phys = acpi_scan_rsdp(0, 0x400); |
1da177e4 | 688 | if (!rsdp_phys) |
4be44fcd | 689 | rsdp_phys = acpi_scan_rsdp(0xE0000, 0x20000); |
1da177e4 LT |
690 | |
691 | return rsdp_phys; | |
692 | } | |
693 | ||
694 | #ifdef CONFIG_X86_LOCAL_APIC | |
695 | /* | |
696 | * Parse LAPIC entries in MADT | |
697 | * returns 0 on success, < 0 on error | |
698 | */ | |
4be44fcd | 699 | static int __init acpi_parse_madt_lapic_entries(void) |
1da177e4 LT |
700 | { |
701 | int count; | |
702 | ||
0fcd2709 AK |
703 | if (!cpu_has_apic) |
704 | return -ENODEV; | |
705 | ||
1da177e4 LT |
706 | /* |
707 | * Note that the LAPIC address is obtained from the MADT (32-bit value) | |
708 | * and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value). | |
709 | */ | |
710 | ||
4be44fcd LB |
711 | count = |
712 | acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR, | |
713 | acpi_parse_lapic_addr_ovr, 0); | |
1da177e4 | 714 | if (count < 0) { |
4be44fcd LB |
715 | printk(KERN_ERR PREFIX |
716 | "Error parsing LAPIC address override entry\n"); | |
1da177e4 LT |
717 | return count; |
718 | } | |
719 | ||
720 | mp_register_lapic_address(acpi_lapic_addr); | |
721 | ||
722 | count = acpi_table_parse_madt(ACPI_MADT_LAPIC, acpi_parse_lapic, | |
4be44fcd LB |
723 | MAX_APICS); |
724 | if (!count) { | |
1da177e4 LT |
725 | printk(KERN_ERR PREFIX "No LAPIC entries present\n"); |
726 | /* TBD: Cleanup to allow fallback to MPS */ | |
727 | return -ENODEV; | |
4be44fcd | 728 | } else if (count < 0) { |
1da177e4 LT |
729 | printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n"); |
730 | /* TBD: Cleanup to allow fallback to MPS */ | |
731 | return count; | |
732 | } | |
733 | ||
4be44fcd LB |
734 | count = |
735 | acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi, 0); | |
1da177e4 LT |
736 | if (count < 0) { |
737 | printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); | |
738 | /* TBD: Cleanup to allow fallback to MPS */ | |
739 | return count; | |
740 | } | |
741 | return 0; | |
742 | } | |
4be44fcd | 743 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 744 | |
8466361a | 745 | #ifdef CONFIG_X86_IO_APIC |
1da177e4 LT |
746 | /* |
747 | * Parse IOAPIC related entries in MADT | |
748 | * returns 0 on success, < 0 on error | |
749 | */ | |
4be44fcd | 750 | static int __init acpi_parse_madt_ioapic_entries(void) |
1da177e4 LT |
751 | { |
752 | int count; | |
753 | ||
754 | /* | |
755 | * ACPI interpreter is required to complete interrupt setup, | |
756 | * so if it is off, don't enumerate the io-apics with ACPI. | |
757 | * If MPS is present, it will handle them, | |
758 | * otherwise the system will stay in PIC mode | |
759 | */ | |
760 | if (acpi_disabled || acpi_noirq) { | |
761 | return -ENODEV; | |
4be44fcd | 762 | } |
1da177e4 | 763 | |
9cfda2c9 | 764 | if (!cpu_has_apic) |
d3b6a349 AK |
765 | return -ENODEV; |
766 | ||
1da177e4 | 767 | /* |
4be44fcd | 768 | * if "noapic" boot option, don't look for IO-APICs |
1da177e4 LT |
769 | */ |
770 | if (skip_ioapic_setup) { | |
771 | printk(KERN_INFO PREFIX "Skipping IOAPIC probe " | |
4be44fcd | 772 | "due to 'noapic' option.\n"); |
1da177e4 LT |
773 | return -ENODEV; |
774 | } | |
775 | ||
4be44fcd LB |
776 | count = |
777 | acpi_table_parse_madt(ACPI_MADT_IOAPIC, acpi_parse_ioapic, | |
778 | MAX_IO_APICS); | |
1da177e4 LT |
779 | if (!count) { |
780 | printk(KERN_ERR PREFIX "No IOAPIC entries present\n"); | |
781 | return -ENODEV; | |
4be44fcd | 782 | } else if (count < 0) { |
1da177e4 LT |
783 | printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n"); |
784 | return count; | |
785 | } | |
786 | ||
4be44fcd LB |
787 | count = |
788 | acpi_table_parse_madt(ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr, | |
789 | NR_IRQ_VECTORS); | |
1da177e4 | 790 | if (count < 0) { |
4be44fcd LB |
791 | printk(KERN_ERR PREFIX |
792 | "Error parsing interrupt source overrides entry\n"); | |
1da177e4 LT |
793 | /* TBD: Cleanup to allow fallback to MPS */ |
794 | return count; | |
795 | } | |
796 | ||
797 | /* | |
798 | * If BIOS did not supply an INT_SRC_OVR for the SCI | |
799 | * pretend we got one so we can set the SCI flags. | |
800 | */ | |
801 | if (!acpi_sci_override_gsi) | |
802 | acpi_sci_ioapic_setup(acpi_fadt.sci_int, 0, 0); | |
803 | ||
804 | /* Fill in identity legacy mapings where no override */ | |
805 | mp_config_acpi_legacy_irqs(); | |
806 | ||
4be44fcd LB |
807 | count = |
808 | acpi_table_parse_madt(ACPI_MADT_NMI_SRC, acpi_parse_nmi_src, | |
809 | NR_IRQ_VECTORS); | |
1da177e4 LT |
810 | if (count < 0) { |
811 | printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n"); | |
812 | /* TBD: Cleanup to allow fallback to MPS */ | |
813 | return count; | |
814 | } | |
815 | ||
816 | return 0; | |
817 | } | |
818 | #else | |
819 | static inline int acpi_parse_madt_ioapic_entries(void) | |
820 | { | |
821 | return -1; | |
822 | } | |
8466361a | 823 | #endif /* !CONFIG_X86_IO_APIC */ |
1da177e4 | 824 | |
4be44fcd | 825 | static void __init acpi_process_madt(void) |
1da177e4 LT |
826 | { |
827 | #ifdef CONFIG_X86_LOCAL_APIC | |
828 | int count, error; | |
829 | ||
830 | count = acpi_table_parse(ACPI_APIC, acpi_parse_madt); | |
831 | if (count >= 1) { | |
832 | ||
833 | /* | |
834 | * Parse MADT LAPIC entries | |
835 | */ | |
836 | error = acpi_parse_madt_lapic_entries(); | |
837 | if (!error) { | |
838 | acpi_lapic = 1; | |
839 | ||
911a62d4 VP |
840 | #ifdef CONFIG_X86_GENERICARCH |
841 | generic_bigsmp_probe(); | |
842 | #endif | |
1da177e4 LT |
843 | /* |
844 | * Parse MADT IO-APIC entries | |
845 | */ | |
846 | error = acpi_parse_madt_ioapic_entries(); | |
847 | if (!error) { | |
848 | acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; | |
849 | acpi_irq_balance_set(NULL); | |
850 | acpi_ioapic = 1; | |
851 | ||
852 | smp_found_config = 1; | |
853 | clustered_apic_check(); | |
854 | } | |
855 | } | |
856 | if (error == -EINVAL) { | |
857 | /* | |
858 | * Dell Precision Workstation 410, 610 come here. | |
859 | */ | |
4be44fcd LB |
860 | printk(KERN_ERR PREFIX |
861 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1da177e4 LT |
862 | disable_acpi(); |
863 | } | |
864 | } | |
865 | #endif | |
866 | return; | |
867 | } | |
868 | ||
aea00143 AP |
869 | #ifdef __i386__ |
870 | ||
aea00143 AP |
871 | static int __init disable_acpi_irq(struct dmi_system_id *d) |
872 | { | |
873 | if (!acpi_force) { | |
874 | printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n", | |
875 | d->ident); | |
876 | acpi_noirq_set(); | |
877 | } | |
878 | return 0; | |
879 | } | |
880 | ||
881 | static int __init disable_acpi_pci(struct dmi_system_id *d) | |
882 | { | |
883 | if (!acpi_force) { | |
884 | printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n", | |
885 | d->ident); | |
886 | acpi_disable_pci(); | |
887 | } | |
888 | return 0; | |
889 | } | |
aea00143 AP |
890 | |
891 | static int __init dmi_disable_acpi(struct dmi_system_id *d) | |
892 | { | |
893 | if (!acpi_force) { | |
4be44fcd | 894 | printk(KERN_NOTICE "%s detected: acpi off\n", d->ident); |
aea00143 AP |
895 | disable_acpi(); |
896 | } else { | |
897 | printk(KERN_NOTICE | |
898 | "Warning: DMI blacklist says broken, but acpi forced\n"); | |
899 | } | |
900 | return 0; | |
901 | } | |
902 | ||
903 | /* | |
904 | * Limit ACPI to CPU enumeration for HT | |
905 | */ | |
906 | static int __init force_acpi_ht(struct dmi_system_id *d) | |
907 | { | |
908 | if (!acpi_force) { | |
4be44fcd LB |
909 | printk(KERN_NOTICE "%s detected: force use of acpi=ht\n", |
910 | d->ident); | |
aea00143 AP |
911 | disable_acpi(); |
912 | acpi_ht = 1; | |
913 | } else { | |
914 | printk(KERN_NOTICE | |
915 | "Warning: acpi=force overrules DMI blacklist: acpi=ht\n"); | |
916 | } | |
917 | return 0; | |
918 | } | |
919 | ||
920 | /* | |
921 | * If your system is blacklisted here, but you find that acpi=force | |
922 | * works for you, please contact acpi-devel@sourceforge.net | |
923 | */ | |
924 | static struct dmi_system_id __initdata acpi_dmi_table[] = { | |
925 | /* | |
926 | * Boxes that need ACPI disabled | |
927 | */ | |
928 | { | |
4be44fcd LB |
929 | .callback = dmi_disable_acpi, |
930 | .ident = "IBM Thinkpad", | |
931 | .matches = { | |
932 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
933 | DMI_MATCH(DMI_BOARD_NAME, "2629H1G"), | |
934 | }, | |
935 | }, | |
aea00143 AP |
936 | |
937 | /* | |
938 | * Boxes that need acpi=ht | |
939 | */ | |
940 | { | |
4be44fcd LB |
941 | .callback = force_acpi_ht, |
942 | .ident = "FSC Primergy T850", | |
943 | .matches = { | |
944 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), | |
945 | DMI_MATCH(DMI_PRODUCT_NAME, "PRIMERGY T850"), | |
946 | }, | |
947 | }, | |
aea00143 | 948 | { |
4be44fcd LB |
949 | .callback = force_acpi_ht, |
950 | .ident = "DELL GX240", | |
951 | .matches = { | |
952 | DMI_MATCH(DMI_BOARD_VENDOR, "Dell Computer Corporation"), | |
953 | DMI_MATCH(DMI_BOARD_NAME, "OptiPlex GX240"), | |
954 | }, | |
955 | }, | |
aea00143 | 956 | { |
4be44fcd LB |
957 | .callback = force_acpi_ht, |
958 | .ident = "HP VISUALIZE NT Workstation", | |
959 | .matches = { | |
960 | DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), | |
961 | DMI_MATCH(DMI_PRODUCT_NAME, "HP VISUALIZE NT Workstation"), | |
962 | }, | |
963 | }, | |
aea00143 | 964 | { |
4be44fcd LB |
965 | .callback = force_acpi_ht, |
966 | .ident = "Compaq Workstation W8000", | |
967 | .matches = { | |
968 | DMI_MATCH(DMI_SYS_VENDOR, "Compaq"), | |
969 | DMI_MATCH(DMI_PRODUCT_NAME, "Workstation W8000"), | |
970 | }, | |
971 | }, | |
aea00143 | 972 | { |
4be44fcd LB |
973 | .callback = force_acpi_ht, |
974 | .ident = "ASUS P4B266", | |
975 | .matches = { | |
976 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
977 | DMI_MATCH(DMI_BOARD_NAME, "P4B266"), | |
978 | }, | |
979 | }, | |
aea00143 | 980 | { |
4be44fcd LB |
981 | .callback = force_acpi_ht, |
982 | .ident = "ASUS P2B-DS", | |
983 | .matches = { | |
984 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
985 | DMI_MATCH(DMI_BOARD_NAME, "P2B-DS"), | |
986 | }, | |
987 | }, | |
aea00143 | 988 | { |
4be44fcd LB |
989 | .callback = force_acpi_ht, |
990 | .ident = "ASUS CUR-DLS", | |
991 | .matches = { | |
992 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
993 | DMI_MATCH(DMI_BOARD_NAME, "CUR-DLS"), | |
994 | }, | |
995 | }, | |
aea00143 | 996 | { |
4be44fcd LB |
997 | .callback = force_acpi_ht, |
998 | .ident = "ABIT i440BX-W83977", | |
999 | .matches = { | |
1000 | DMI_MATCH(DMI_BOARD_VENDOR, "ABIT <http://www.abit.com>"), | |
1001 | DMI_MATCH(DMI_BOARD_NAME, "i440BX-W83977 (BP6)"), | |
1002 | }, | |
1003 | }, | |
aea00143 | 1004 | { |
4be44fcd LB |
1005 | .callback = force_acpi_ht, |
1006 | .ident = "IBM Bladecenter", | |
1007 | .matches = { | |
1008 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1009 | DMI_MATCH(DMI_BOARD_NAME, "IBM eServer BladeCenter HS20"), | |
1010 | }, | |
1011 | }, | |
aea00143 | 1012 | { |
4be44fcd LB |
1013 | .callback = force_acpi_ht, |
1014 | .ident = "IBM eServer xSeries 360", | |
1015 | .matches = { | |
1016 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1017 | DMI_MATCH(DMI_BOARD_NAME, "eServer xSeries 360"), | |
1018 | }, | |
1019 | }, | |
aea00143 | 1020 | { |
4be44fcd LB |
1021 | .callback = force_acpi_ht, |
1022 | .ident = "IBM eserver xSeries 330", | |
1023 | .matches = { | |
1024 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1025 | DMI_MATCH(DMI_BOARD_NAME, "eserver xSeries 330"), | |
1026 | }, | |
1027 | }, | |
aea00143 | 1028 | { |
4be44fcd LB |
1029 | .callback = force_acpi_ht, |
1030 | .ident = "IBM eserver xSeries 440", | |
1031 | .matches = { | |
1032 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1033 | DMI_MATCH(DMI_PRODUCT_NAME, "eserver xSeries 440"), | |
1034 | }, | |
1035 | }, | |
aea00143 | 1036 | |
aea00143 AP |
1037 | /* |
1038 | * Boxes that need ACPI PCI IRQ routing disabled | |
1039 | */ | |
1040 | { | |
4be44fcd LB |
1041 | .callback = disable_acpi_irq, |
1042 | .ident = "ASUS A7V", | |
1043 | .matches = { | |
1044 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"), | |
1045 | DMI_MATCH(DMI_BOARD_NAME, "<A7V>"), | |
1046 | /* newer BIOS, Revision 1011, does work */ | |
1047 | DMI_MATCH(DMI_BIOS_VERSION, | |
1048 | "ASUS A7V ACPI BIOS Revision 1007"), | |
1049 | }, | |
1050 | }, | |
aea00143 AP |
1051 | |
1052 | /* | |
1053 | * Boxes that need ACPI PCI IRQ routing and PCI scan disabled | |
1054 | */ | |
4be44fcd LB |
1055 | { /* _BBN 0 bug */ |
1056 | .callback = disable_acpi_pci, | |
1057 | .ident = "ASUS PR-DLS", | |
1058 | .matches = { | |
1059 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1060 | DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"), | |
1061 | DMI_MATCH(DMI_BIOS_VERSION, | |
1062 | "ASUS PR-DLS ACPI BIOS Revision 1010"), | |
1063 | DMI_MATCH(DMI_BIOS_DATE, "03/21/2003") | |
1064 | }, | |
1065 | }, | |
aea00143 | 1066 | { |
4be44fcd LB |
1067 | .callback = disable_acpi_pci, |
1068 | .ident = "Acer TravelMate 36x Laptop", | |
1069 | .matches = { | |
1070 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
1071 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), | |
1072 | }, | |
1073 | }, | |
4be44fcd | 1074 | {} |
aea00143 AP |
1075 | }; |
1076 | ||
4be44fcd | 1077 | #endif /* __i386__ */ |
aea00143 | 1078 | |
1da177e4 LT |
1079 | /* |
1080 | * acpi_boot_table_init() and acpi_boot_init() | |
1081 | * called from setup_arch(), always. | |
1082 | * 1. checksums all tables | |
1083 | * 2. enumerates lapics | |
1084 | * 3. enumerates io-apics | |
1085 | * | |
1086 | * acpi_table_init() is separate to allow reading SRAT without | |
1087 | * other side effects. | |
1088 | * | |
1089 | * side effects of acpi_boot_init: | |
1090 | * acpi_lapic = 1 if LAPIC found | |
1091 | * acpi_ioapic = 1 if IOAPIC found | |
1092 | * if (acpi_lapic && acpi_ioapic) smp_found_config = 1; | |
1093 | * if acpi_blacklisted() acpi_disabled = 1; | |
1094 | * acpi_irq_model=... | |
1095 | * ... | |
1096 | * | |
1097 | * return value: (currently ignored) | |
1098 | * 0: success | |
1099 | * !0: failure | |
1100 | */ | |
1101 | ||
4be44fcd | 1102 | int __init acpi_boot_table_init(void) |
1da177e4 LT |
1103 | { |
1104 | int error; | |
1105 | ||
aea00143 AP |
1106 | #ifdef __i386__ |
1107 | dmi_check_system(acpi_dmi_table); | |
1108 | #endif | |
1109 | ||
1da177e4 LT |
1110 | /* |
1111 | * If acpi_disabled, bail out | |
1112 | * One exception: acpi=ht continues far enough to enumerate LAPICs | |
1113 | */ | |
1114 | if (acpi_disabled && !acpi_ht) | |
4be44fcd | 1115 | return 1; |
1da177e4 LT |
1116 | |
1117 | /* | |
1118 | * Initialize the ACPI boot-time table parser. | |
1119 | */ | |
1120 | error = acpi_table_init(); | |
1121 | if (error) { | |
1122 | disable_acpi(); | |
1123 | return error; | |
1124 | } | |
1da177e4 LT |
1125 | |
1126 | acpi_table_parse(ACPI_BOOT, acpi_parse_sbf); | |
1127 | ||
1128 | /* | |
1129 | * blacklist may disable ACPI entirely | |
1130 | */ | |
1131 | error = acpi_blacklisted(); | |
1132 | if (error) { | |
1da177e4 LT |
1133 | if (acpi_force) { |
1134 | printk(KERN_WARNING PREFIX "acpi=force override\n"); | |
1135 | } else { | |
1136 | printk(KERN_WARNING PREFIX "Disabling ACPI support\n"); | |
1137 | disable_acpi(); | |
1138 | return error; | |
1139 | } | |
1140 | } | |
1141 | ||
1142 | return 0; | |
1143 | } | |
1144 | ||
1da177e4 LT |
1145 | int __init acpi_boot_init(void) |
1146 | { | |
1147 | /* | |
1148 | * If acpi_disabled, bail out | |
1149 | * One exception: acpi=ht continues far enough to enumerate LAPICs | |
1150 | */ | |
1151 | if (acpi_disabled && !acpi_ht) | |
4be44fcd | 1152 | return 1; |
1da177e4 LT |
1153 | |
1154 | acpi_table_parse(ACPI_BOOT, acpi_parse_sbf); | |
1155 | ||
1156 | /* | |
1157 | * set sci_int and PM timer address | |
1158 | */ | |
1159 | acpi_table_parse(ACPI_FADT, acpi_parse_fadt); | |
1160 | ||
1161 | /* | |
1162 | * Process the Multiple APIC Description Table (MADT), if present | |
1163 | */ | |
1164 | acpi_process_madt(); | |
1165 | ||
1166 | acpi_table_parse(ACPI_HPET, acpi_parse_hpet); | |
1da177e4 LT |
1167 | |
1168 | return 0; | |
1169 | } | |
1a3f239d RR |
1170 | |
1171 | static int __init parse_acpi(char *arg) | |
1172 | { | |
1173 | if (!arg) | |
1174 | return -EINVAL; | |
1175 | ||
1176 | /* "acpi=off" disables both ACPI table parsing and interpreter */ | |
1177 | if (strcmp(arg, "off") == 0) { | |
1178 | disable_acpi(); | |
1179 | } | |
1180 | /* acpi=force to over-ride black-list */ | |
1181 | else if (strcmp(arg, "force") == 0) { | |
1182 | acpi_force = 1; | |
1183 | acpi_ht = 1; | |
1184 | acpi_disabled = 0; | |
1185 | } | |
1186 | /* acpi=strict disables out-of-spec workarounds */ | |
1187 | else if (strcmp(arg, "strict") == 0) { | |
1188 | acpi_strict = 1; | |
1189 | } | |
1190 | /* Limit ACPI just to boot-time to enable HT */ | |
1191 | else if (strcmp(arg, "ht") == 0) { | |
1192 | if (!acpi_force) | |
1193 | disable_acpi(); | |
1194 | acpi_ht = 1; | |
1195 | } | |
1196 | /* "acpi=noirq" disables ACPI interrupt routing */ | |
1197 | else if (strcmp(arg, "noirq") == 0) { | |
1198 | acpi_noirq_set(); | |
1199 | } else { | |
1200 | /* Core will printk when we return error. */ | |
1201 | return -EINVAL; | |
1202 | } | |
1203 | return 0; | |
1204 | } | |
1205 | early_param("acpi", parse_acpi); | |
1206 | ||
1207 | /* FIXME: Using pci= for an ACPI parameter is a travesty. */ | |
1208 | static int __init parse_pci(char *arg) | |
1209 | { | |
1210 | if (arg && strcmp(arg, "noacpi") == 0) | |
1211 | acpi_disable_pci(); | |
1212 | return 0; | |
1213 | } | |
1214 | early_param("pci", parse_pci); | |
1215 | ||
1216 | #ifdef CONFIG_X86_IO_APIC | |
1217 | static int __init parse_acpi_skip_timer_override(char *arg) | |
1218 | { | |
1219 | acpi_skip_timer_override = 1; | |
1220 | return 0; | |
1221 | } | |
1222 | early_param("acpi_skip_timer_override", parse_acpi_skip_timer_override); | |
1223 | #endif /* CONFIG_X86_IO_APIC */ | |
1224 | ||
1225 | static int __init setup_acpi_sci(char *s) | |
1226 | { | |
1227 | if (!s) | |
1228 | return -EINVAL; | |
1229 | if (!strcmp(s, "edge")) | |
1230 | acpi_sci_flags.trigger = 1; | |
1231 | else if (!strcmp(s, "level")) | |
1232 | acpi_sci_flags.trigger = 3; | |
1233 | else if (!strcmp(s, "high")) | |
1234 | acpi_sci_flags.polarity = 1; | |
1235 | else if (!strcmp(s, "low")) | |
1236 | acpi_sci_flags.polarity = 3; | |
1237 | else | |
1238 | return -EINVAL; | |
1239 | return 0; | |
1240 | } | |
1241 | early_param("acpi_sci", setup_acpi_sci); |