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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> | |
73fea175 | 29 | #include <linux/cpumask.h> |
1da177e4 | 30 | #include <linux/module.h> |
aea00143 | 31 | #include <linux/dmi.h> |
b33fa1f3 | 32 | #include <linux/irq.h> |
f0f4c343 AD |
33 | #include <linux/bootmem.h> |
34 | #include <linux/ioport.h> | |
1da177e4 LT |
35 | |
36 | #include <asm/pgtable.h> | |
37 | #include <asm/io_apic.h> | |
38 | #include <asm/apic.h> | |
39 | #include <asm/io.h> | |
1da177e4 LT |
40 | #include <asm/mpspec.h> |
41 | ||
e8924acb | 42 | static int __initdata acpi_force = 0; |
1a3f239d | 43 | |
df3bb57d AK |
44 | #ifdef CONFIG_ACPI |
45 | int acpi_disabled = 0; | |
46 | #else | |
47 | int acpi_disabled = 1; | |
48 | #endif | |
49 | EXPORT_SYMBOL(acpi_disabled); | |
50 | ||
1da177e4 LT |
51 | #ifdef CONFIG_X86_64 |
52 | ||
1da177e4 LT |
53 | #include <asm/proto.h> |
54 | ||
637029c6 LT |
55 | static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id) { return 0; } |
56 | ||
57 | ||
4be44fcd | 58 | #else /* X86 */ |
1da177e4 LT |
59 | |
60 | #ifdef CONFIG_X86_LOCAL_APIC | |
61 | #include <mach_apic.h> | |
62 | #include <mach_mpparse.h> | |
4be44fcd | 63 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 64 | |
6004e1b7 JC |
65 | static inline int gsi_irq_sharing(int gsi) { return gsi; } |
66 | ||
4be44fcd | 67 | #endif /* X86 */ |
1da177e4 LT |
68 | |
69 | #define BAD_MADT_ENTRY(entry, end) ( \ | |
70 | (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ | |
df6fd319 | 71 | ((acpi_table_entry_header *)entry)->length < sizeof(*entry)) |
1da177e4 LT |
72 | |
73 | #define PREFIX "ACPI: " | |
74 | ||
1da177e4 | 75 | int acpi_noirq __initdata; /* skip ACPI IRQ initialization */ |
4be44fcd | 76 | int acpi_pci_disabled __initdata; /* skip ACPI PCI scan and IRQ initialization */ |
1da177e4 LT |
77 | int acpi_ht __initdata = 1; /* enable HT */ |
78 | ||
79 | int acpi_lapic; | |
80 | int acpi_ioapic; | |
81 | int acpi_strict; | |
82 | EXPORT_SYMBOL(acpi_strict); | |
83 | ||
84 | acpi_interrupt_flags acpi_sci_flags __initdata; | |
85 | int acpi_sci_override_gsi __initdata; | |
86 | int acpi_skip_timer_override __initdata; | |
87 | ||
88 | #ifdef CONFIG_X86_LOCAL_APIC | |
89 | static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; | |
90 | #endif | |
91 | ||
92 | #ifndef __HAVE_ARCH_CMPXCHG | |
93 | #warning ACPI uses CMPXCHG, i486 and later hardware | |
94 | #endif | |
95 | ||
96 | #define MAX_MADT_ENTRIES 256 | |
97 | u8 x86_acpiid_to_apicid[MAX_MADT_ENTRIES] = | |
1f3a7301 | 98 | {[0 ... MAX_MADT_ENTRIES - 1] = 0xff }; |
1da177e4 LT |
99 | EXPORT_SYMBOL(x86_acpiid_to_apicid); |
100 | ||
101 | /* -------------------------------------------------------------------------- | |
102 | Boot-time Configuration | |
103 | -------------------------------------------------------------------------- */ | |
104 | ||
105 | /* | |
106 | * The default interrupt routing model is PIC (8259). This gets | |
107 | * overriden if IOAPICs are enumerated (below). | |
108 | */ | |
4be44fcd | 109 | enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC; |
1da177e4 LT |
110 | |
111 | #ifdef CONFIG_X86_64 | |
112 | ||
113 | /* rely on all ACPI tables being in the direct mapping */ | |
114 | char *__acpi_map_table(unsigned long phys_addr, unsigned long size) | |
115 | { | |
116 | if (!phys_addr || !size) | |
4be44fcd | 117 | return NULL; |
1da177e4 | 118 | |
7a4a76cc | 119 | if (phys_addr+size <= (end_pfn_map << PAGE_SHIFT) + PAGE_SIZE) |
1da177e4 LT |
120 | return __va(phys_addr); |
121 | ||
122 | return NULL; | |
123 | } | |
124 | ||
125 | #else | |
126 | ||
127 | /* | |
128 | * Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END, | |
129 | * to map the target physical address. The problem is that set_fixmap() | |
130 | * provides a single page, and it is possible that the page is not | |
131 | * sufficient. | |
132 | * By using this area, we can map up to MAX_IO_APICS pages temporarily, | |
133 | * i.e. until the next __va_range() call. | |
134 | * | |
135 | * Important Safety Note: The fixed I/O APIC page numbers are *subtracted* | |
136 | * from the fixed base. That's why we start at FIX_IO_APIC_BASE_END and | |
137 | * count idx down while incrementing the phys address. | |
138 | */ | |
139 | char *__acpi_map_table(unsigned long phys, unsigned long size) | |
140 | { | |
141 | unsigned long base, offset, mapped_size; | |
142 | int idx; | |
143 | ||
4be44fcd LB |
144 | if (phys + size < 8 * 1024 * 1024) |
145 | return __va(phys); | |
1da177e4 LT |
146 | |
147 | offset = phys & (PAGE_SIZE - 1); | |
148 | mapped_size = PAGE_SIZE - offset; | |
149 | set_fixmap(FIX_ACPI_END, phys); | |
150 | base = fix_to_virt(FIX_ACPI_END); | |
151 | ||
152 | /* | |
153 | * Most cases can be covered by the below. | |
154 | */ | |
155 | idx = FIX_ACPI_END; | |
156 | while (mapped_size < size) { | |
157 | if (--idx < FIX_ACPI_BEGIN) | |
158 | return NULL; /* cannot handle this */ | |
159 | phys += PAGE_SIZE; | |
160 | set_fixmap(idx, phys); | |
161 | mapped_size += PAGE_SIZE; | |
162 | } | |
163 | ||
4be44fcd | 164 | return ((unsigned char *)base + offset); |
1da177e4 LT |
165 | } |
166 | #endif | |
167 | ||
168 | #ifdef CONFIG_PCI_MMCONFIG | |
54549391 GKH |
169 | /* The physical address of the MMCONFIG aperture. Set from ACPI tables. */ |
170 | struct acpi_table_mcfg_config *pci_mmcfg_config; | |
171 | int pci_mmcfg_config_num; | |
172 | ||
173 | int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size) | |
1da177e4 LT |
174 | { |
175 | struct acpi_table_mcfg *mcfg; | |
54549391 GKH |
176 | unsigned long i; |
177 | int config_size; | |
1da177e4 | 178 | |
87cb23a4 | 179 | if (!phys_addr || !size) |
1da177e4 LT |
180 | return -EINVAL; |
181 | ||
4be44fcd | 182 | mcfg = (struct acpi_table_mcfg *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
183 | if (!mcfg) { |
184 | printk(KERN_WARNING PREFIX "Unable to map MCFG\n"); | |
185 | return -ENODEV; | |
186 | } | |
187 | ||
54549391 GKH |
188 | /* how many config structures do we have */ |
189 | pci_mmcfg_config_num = 0; | |
190 | i = size - sizeof(struct acpi_table_mcfg); | |
191 | while (i >= sizeof(struct acpi_table_mcfg_config)) { | |
192 | ++pci_mmcfg_config_num; | |
193 | i -= sizeof(struct acpi_table_mcfg_config); | |
194 | }; | |
195 | if (pci_mmcfg_config_num == 0) { | |
196 | printk(KERN_ERR PREFIX "MMCONFIG has no entries\n"); | |
1da177e4 LT |
197 | return -ENODEV; |
198 | } | |
199 | ||
54549391 GKH |
200 | config_size = pci_mmcfg_config_num * sizeof(*pci_mmcfg_config); |
201 | pci_mmcfg_config = kmalloc(config_size, GFP_KERNEL); | |
202 | if (!pci_mmcfg_config) { | |
203 | printk(KERN_WARNING PREFIX | |
204 | "No memory for MCFG config tables\n"); | |
205 | return -ENOMEM; | |
206 | } | |
207 | ||
208 | memcpy(pci_mmcfg_config, &mcfg->config, config_size); | |
209 | for (i = 0; i < pci_mmcfg_config_num; ++i) { | |
210 | if (mcfg->config[i].base_reserved) { | |
211 | printk(KERN_ERR PREFIX | |
212 | "MMCONFIG not in low 4GB of memory\n"); | |
acc7c2e0 KR |
213 | kfree(pci_mmcfg_config); |
214 | pci_mmcfg_config_num = 0; | |
54549391 GKH |
215 | return -ENODEV; |
216 | } | |
217 | } | |
1da177e4 LT |
218 | |
219 | return 0; | |
220 | } | |
4be44fcd | 221 | #endif /* CONFIG_PCI_MMCONFIG */ |
1da177e4 LT |
222 | |
223 | #ifdef CONFIG_X86_LOCAL_APIC | |
4be44fcd | 224 | static int __init acpi_parse_madt(unsigned long phys_addr, unsigned long size) |
1da177e4 | 225 | { |
4be44fcd | 226 | struct acpi_table_madt *madt = NULL; |
1da177e4 | 227 | |
9cfda2c9 | 228 | if (!phys_addr || !size || !cpu_has_apic) |
1da177e4 LT |
229 | return -EINVAL; |
230 | ||
4be44fcd | 231 | madt = (struct acpi_table_madt *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
232 | if (!madt) { |
233 | printk(KERN_WARNING PREFIX "Unable to map MADT\n"); | |
234 | return -ENODEV; | |
235 | } | |
236 | ||
237 | if (madt->lapic_address) { | |
238 | acpi_lapic_addr = (u64) madt->lapic_address; | |
239 | ||
240 | printk(KERN_DEBUG PREFIX "Local APIC address 0x%08x\n", | |
4be44fcd | 241 | madt->lapic_address); |
1da177e4 LT |
242 | } |
243 | ||
244 | acpi_madt_oem_check(madt->header.oem_id, madt->header.oem_table_id); | |
4be44fcd | 245 | |
1da177e4 LT |
246 | return 0; |
247 | } | |
248 | ||
1da177e4 | 249 | static int __init |
4be44fcd | 250 | acpi_parse_lapic(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 | 251 | { |
4be44fcd | 252 | struct acpi_table_lapic *processor = NULL; |
1da177e4 | 253 | |
4be44fcd | 254 | processor = (struct acpi_table_lapic *)header; |
1da177e4 LT |
255 | |
256 | if (BAD_MADT_ENTRY(processor, end)) | |
257 | return -EINVAL; | |
258 | ||
259 | acpi_table_print_madt_entry(header); | |
260 | ||
7f66ae48 AR |
261 | /* Record local apic id only when enabled */ |
262 | if (processor->flags.enabled) | |
263 | x86_acpiid_to_apicid[processor->acpi_id] = processor->id; | |
1da177e4 | 264 | |
7f66ae48 AR |
265 | /* |
266 | * We need to register disabled CPU as well to permit | |
267 | * counting disabled CPUs. This allows us to size | |
268 | * cpus_possible_map more accurately, to permit | |
269 | * to not preallocating memory for all NR_CPUS | |
270 | * when we use CPU hotplug. | |
271 | */ | |
4be44fcd LB |
272 | mp_register_lapic(processor->id, /* APIC ID */ |
273 | processor->flags.enabled); /* Enabled? */ | |
1da177e4 LT |
274 | |
275 | return 0; | |
276 | } | |
277 | ||
278 | static int __init | |
4be44fcd LB |
279 | acpi_parse_lapic_addr_ovr(acpi_table_entry_header * header, |
280 | const unsigned long end) | |
1da177e4 LT |
281 | { |
282 | struct acpi_table_lapic_addr_ovr *lapic_addr_ovr = NULL; | |
283 | ||
4be44fcd | 284 | lapic_addr_ovr = (struct acpi_table_lapic_addr_ovr *)header; |
1da177e4 LT |
285 | |
286 | if (BAD_MADT_ENTRY(lapic_addr_ovr, end)) | |
287 | return -EINVAL; | |
288 | ||
289 | acpi_lapic_addr = lapic_addr_ovr->address; | |
290 | ||
291 | return 0; | |
292 | } | |
293 | ||
294 | static int __init | |
4be44fcd | 295 | acpi_parse_lapic_nmi(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
296 | { |
297 | struct acpi_table_lapic_nmi *lapic_nmi = NULL; | |
298 | ||
4be44fcd | 299 | lapic_nmi = (struct acpi_table_lapic_nmi *)header; |
1da177e4 LT |
300 | |
301 | if (BAD_MADT_ENTRY(lapic_nmi, end)) | |
302 | return -EINVAL; | |
303 | ||
304 | acpi_table_print_madt_entry(header); | |
305 | ||
306 | if (lapic_nmi->lint != 1) | |
307 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
308 | ||
309 | return 0; | |
310 | } | |
311 | ||
4be44fcd | 312 | #endif /*CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 313 | |
8466361a | 314 | #ifdef CONFIG_X86_IO_APIC |
1da177e4 LT |
315 | |
316 | static int __init | |
4be44fcd | 317 | acpi_parse_ioapic(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
318 | { |
319 | struct acpi_table_ioapic *ioapic = NULL; | |
320 | ||
4be44fcd | 321 | ioapic = (struct acpi_table_ioapic *)header; |
1da177e4 LT |
322 | |
323 | if (BAD_MADT_ENTRY(ioapic, end)) | |
324 | return -EINVAL; | |
4be44fcd | 325 | |
1da177e4 LT |
326 | acpi_table_print_madt_entry(header); |
327 | ||
4be44fcd LB |
328 | mp_register_ioapic(ioapic->id, |
329 | ioapic->address, ioapic->global_irq_base); | |
330 | ||
1da177e4 LT |
331 | return 0; |
332 | } | |
333 | ||
334 | /* | |
335 | * Parse Interrupt Source Override for the ACPI SCI | |
336 | */ | |
4be44fcd | 337 | static void acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger) |
1da177e4 LT |
338 | { |
339 | if (trigger == 0) /* compatible SCI trigger is level */ | |
340 | trigger = 3; | |
341 | ||
342 | if (polarity == 0) /* compatible SCI polarity is low */ | |
343 | polarity = 3; | |
344 | ||
345 | /* Command-line over-ride via acpi_sci= */ | |
346 | if (acpi_sci_flags.trigger) | |
347 | trigger = acpi_sci_flags.trigger; | |
348 | ||
349 | if (acpi_sci_flags.polarity) | |
350 | polarity = acpi_sci_flags.polarity; | |
351 | ||
352 | /* | |
4be44fcd | 353 | * mp_config_acpi_legacy_irqs() already setup IRQs < 16 |
1da177e4 LT |
354 | * If GSI is < 16, this will update its flags, |
355 | * else it will create a new mp_irqs[] entry. | |
356 | */ | |
357 | mp_override_legacy_irq(gsi, polarity, trigger, gsi); | |
358 | ||
359 | /* | |
360 | * stash over-ride to indicate we've been here | |
361 | * and for later update of acpi_fadt | |
362 | */ | |
363 | acpi_sci_override_gsi = gsi; | |
364 | return; | |
365 | } | |
366 | ||
367 | static int __init | |
4be44fcd LB |
368 | acpi_parse_int_src_ovr(acpi_table_entry_header * header, |
369 | const unsigned long end) | |
1da177e4 LT |
370 | { |
371 | struct acpi_table_int_src_ovr *intsrc = NULL; | |
372 | ||
4be44fcd | 373 | intsrc = (struct acpi_table_int_src_ovr *)header; |
1da177e4 LT |
374 | |
375 | if (BAD_MADT_ENTRY(intsrc, end)) | |
376 | return -EINVAL; | |
377 | ||
378 | acpi_table_print_madt_entry(header); | |
379 | ||
380 | if (intsrc->bus_irq == acpi_fadt.sci_int) { | |
381 | acpi_sci_ioapic_setup(intsrc->global_irq, | |
4be44fcd LB |
382 | intsrc->flags.polarity, |
383 | intsrc->flags.trigger); | |
1da177e4 LT |
384 | return 0; |
385 | } | |
386 | ||
387 | if (acpi_skip_timer_override && | |
4be44fcd LB |
388 | intsrc->bus_irq == 0 && intsrc->global_irq == 2) { |
389 | printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n"); | |
390 | return 0; | |
1da177e4 LT |
391 | } |
392 | ||
4be44fcd LB |
393 | mp_override_legacy_irq(intsrc->bus_irq, |
394 | intsrc->flags.polarity, | |
395 | intsrc->flags.trigger, intsrc->global_irq); | |
1da177e4 LT |
396 | |
397 | return 0; | |
398 | } | |
399 | ||
1da177e4 | 400 | static int __init |
4be44fcd | 401 | acpi_parse_nmi_src(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
402 | { |
403 | struct acpi_table_nmi_src *nmi_src = NULL; | |
404 | ||
4be44fcd | 405 | nmi_src = (struct acpi_table_nmi_src *)header; |
1da177e4 LT |
406 | |
407 | if (BAD_MADT_ENTRY(nmi_src, end)) | |
408 | return -EINVAL; | |
409 | ||
410 | acpi_table_print_madt_entry(header); | |
411 | ||
412 | /* TBD: Support nimsrc entries? */ | |
413 | ||
414 | return 0; | |
415 | } | |
416 | ||
4be44fcd | 417 | #endif /* CONFIG_X86_IO_APIC */ |
1da177e4 | 418 | |
1da177e4 LT |
419 | /* |
420 | * acpi_pic_sci_set_trigger() | |
421 | * | |
422 | * use ELCR to set PIC-mode trigger type for SCI | |
423 | * | |
424 | * If a PIC-mode SCI is not recognized or gives spurious IRQ7's | |
425 | * it may require Edge Trigger -- use "acpi_sci=edge" | |
426 | * | |
427 | * Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers | |
428 | * for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge. | |
429 | * ECLR1 is IRQ's 0-7 (IRQ 0, 1, 2 must be 0) | |
430 | * ECLR2 is IRQ's 8-15 (IRQ 8, 13 must be 0) | |
431 | */ | |
432 | ||
4be44fcd | 433 | void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger) |
1da177e4 LT |
434 | { |
435 | unsigned int mask = 1 << irq; | |
436 | unsigned int old, new; | |
437 | ||
438 | /* Real old ELCR mask */ | |
439 | old = inb(0x4d0) | (inb(0x4d1) << 8); | |
440 | ||
441 | /* | |
442 | * If we use ACPI to set PCI irq's, then we should clear ELCR | |
443 | * since we will set it correctly as we enable the PCI irq | |
444 | * routing. | |
445 | */ | |
446 | new = acpi_noirq ? old : 0; | |
447 | ||
448 | /* | |
449 | * Update SCI information in the ELCR, it isn't in the PCI | |
450 | * routing tables.. | |
451 | */ | |
452 | switch (trigger) { | |
4be44fcd | 453 | case 1: /* Edge - clear */ |
1da177e4 LT |
454 | new &= ~mask; |
455 | break; | |
4be44fcd | 456 | case 3: /* Level - set */ |
1da177e4 LT |
457 | new |= mask; |
458 | break; | |
459 | } | |
460 | ||
461 | if (old == new) | |
462 | return; | |
463 | ||
464 | printk(PREFIX "setting ELCR to %04x (from %04x)\n", new, old); | |
465 | outb(new, 0x4d0); | |
466 | outb(new >> 8, 0x4d1); | |
467 | } | |
468 | ||
1da177e4 LT |
469 | int acpi_gsi_to_irq(u32 gsi, unsigned int *irq) |
470 | { | |
ace80ab7 | 471 | *irq = gsi_irq_sharing(gsi); |
1da177e4 LT |
472 | return 0; |
473 | } | |
474 | ||
1f3a6a15 KK |
475 | /* |
476 | * success: return IRQ number (>=0) | |
477 | * failure: return < 0 | |
478 | */ | |
cb654695 | 479 | int acpi_register_gsi(u32 gsi, int triggering, int polarity) |
1da177e4 LT |
480 | { |
481 | unsigned int irq; | |
482 | unsigned int plat_gsi = gsi; | |
483 | ||
484 | #ifdef CONFIG_PCI | |
485 | /* | |
486 | * Make sure all (legacy) PCI IRQs are set as level-triggered. | |
487 | */ | |
488 | if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { | |
489 | extern void eisa_set_level_irq(unsigned int irq); | |
490 | ||
cb654695 | 491 | if (triggering == ACPI_LEVEL_SENSITIVE) |
4be44fcd | 492 | eisa_set_level_irq(gsi); |
1da177e4 LT |
493 | } |
494 | #endif | |
495 | ||
496 | #ifdef CONFIG_X86_IO_APIC | |
497 | if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC) { | |
cb654695 | 498 | plat_gsi = mp_register_gsi(gsi, triggering, polarity); |
1da177e4 LT |
499 | } |
500 | #endif | |
501 | acpi_gsi_to_irq(plat_gsi, &irq); | |
502 | return irq; | |
503 | } | |
4be44fcd | 504 | |
1da177e4 LT |
505 | EXPORT_SYMBOL(acpi_register_gsi); |
506 | ||
507 | /* | |
508 | * ACPI based hotplug support for CPU | |
509 | */ | |
510 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | |
4be44fcd | 511 | int acpi_map_lsapic(acpi_handle handle, int *pcpu) |
1da177e4 | 512 | { |
73fea175 AR |
513 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
514 | union acpi_object *obj; | |
515 | struct acpi_table_lapic *lapic; | |
516 | cpumask_t tmp_map, new_map; | |
517 | u8 physid; | |
518 | int cpu; | |
519 | ||
520 | if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer))) | |
521 | return -EINVAL; | |
522 | ||
523 | if (!buffer.length || !buffer.pointer) | |
524 | return -EINVAL; | |
525 | ||
526 | obj = buffer.pointer; | |
527 | if (obj->type != ACPI_TYPE_BUFFER || | |
528 | obj->buffer.length < sizeof(*lapic)) { | |
529 | kfree(buffer.pointer); | |
530 | return -EINVAL; | |
531 | } | |
532 | ||
533 | lapic = (struct acpi_table_lapic *)obj->buffer.pointer; | |
534 | ||
535 | if ((lapic->header.type != ACPI_MADT_LAPIC) || | |
536 | (!lapic->flags.enabled)) { | |
537 | kfree(buffer.pointer); | |
538 | return -EINVAL; | |
539 | } | |
540 | ||
541 | physid = lapic->id; | |
542 | ||
543 | kfree(buffer.pointer); | |
544 | buffer.length = ACPI_ALLOCATE_BUFFER; | |
545 | buffer.pointer = NULL; | |
546 | ||
547 | tmp_map = cpu_present_map; | |
548 | mp_register_lapic(physid, lapic->flags.enabled); | |
549 | ||
550 | /* | |
551 | * If mp_register_lapic successfully generates a new logical cpu | |
552 | * number, then the following will get us exactly what was mapped | |
553 | */ | |
554 | cpus_andnot(new_map, cpu_present_map, tmp_map); | |
555 | if (cpus_empty(new_map)) { | |
556 | printk ("Unable to map lapic to logical cpu number\n"); | |
557 | return -EINVAL; | |
558 | } | |
559 | ||
560 | cpu = first_cpu(new_map); | |
561 | ||
562 | *pcpu = cpu; | |
563 | return 0; | |
1da177e4 | 564 | } |
1da177e4 | 565 | |
4be44fcd | 566 | EXPORT_SYMBOL(acpi_map_lsapic); |
1da177e4 | 567 | |
4be44fcd | 568 | int acpi_unmap_lsapic(int cpu) |
1da177e4 | 569 | { |
73fea175 AR |
570 | int i; |
571 | ||
572 | for_each_possible_cpu(i) { | |
573 | if (x86_acpiid_to_apicid[i] == x86_cpu_to_apicid[cpu]) { | |
574 | x86_acpiid_to_apicid[i] = -1; | |
575 | break; | |
576 | } | |
577 | } | |
578 | x86_cpu_to_apicid[cpu] = -1; | |
579 | cpu_clear(cpu, cpu_present_map); | |
580 | num_processors--; | |
581 | ||
582 | return (0); | |
1da177e4 | 583 | } |
4be44fcd | 584 | |
1da177e4 | 585 | EXPORT_SYMBOL(acpi_unmap_lsapic); |
4be44fcd | 586 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ |
1da177e4 | 587 | |
4be44fcd | 588 | int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) |
b1bb248a KK |
589 | { |
590 | /* TBD */ | |
591 | return -EINVAL; | |
592 | } | |
4be44fcd | 593 | |
b1bb248a KK |
594 | EXPORT_SYMBOL(acpi_register_ioapic); |
595 | ||
4be44fcd | 596 | int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base) |
b1bb248a KK |
597 | { |
598 | /* TBD */ | |
599 | return -EINVAL; | |
600 | } | |
4be44fcd | 601 | |
b1bb248a KK |
602 | EXPORT_SYMBOL(acpi_unregister_ioapic); |
603 | ||
1da177e4 | 604 | static unsigned long __init |
4be44fcd | 605 | acpi_scan_rsdp(unsigned long start, unsigned long length) |
1da177e4 | 606 | { |
4be44fcd LB |
607 | unsigned long offset = 0; |
608 | unsigned long sig_len = sizeof("RSD PTR ") - 1; | |
1da177e4 LT |
609 | |
610 | /* | |
611 | * Scan all 16-byte boundaries of the physical memory region for the | |
612 | * RSDP signature. | |
613 | */ | |
614 | for (offset = 0; offset < length; offset += 16) { | |
f6c2e333 | 615 | if (strncmp((char *)(phys_to_virt(start) + offset), "RSD PTR ", sig_len)) |
1da177e4 LT |
616 | continue; |
617 | return (start + offset); | |
618 | } | |
619 | ||
620 | return 0; | |
621 | } | |
622 | ||
623 | static int __init acpi_parse_sbf(unsigned long phys_addr, unsigned long size) | |
624 | { | |
625 | struct acpi_table_sbf *sb; | |
626 | ||
627 | if (!phys_addr || !size) | |
4be44fcd | 628 | return -EINVAL; |
1da177e4 | 629 | |
4be44fcd | 630 | sb = (struct acpi_table_sbf *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
631 | if (!sb) { |
632 | printk(KERN_WARNING PREFIX "Unable to map SBF\n"); | |
633 | return -ENODEV; | |
634 | } | |
635 | ||
4be44fcd | 636 | sbf_port = sb->sbf_cmos; /* Save CMOS port */ |
1da177e4 LT |
637 | |
638 | return 0; | |
639 | } | |
640 | ||
1da177e4 LT |
641 | #ifdef CONFIG_HPET_TIMER |
642 | ||
643 | static int __init acpi_parse_hpet(unsigned long phys, unsigned long size) | |
644 | { | |
645 | struct acpi_table_hpet *hpet_tbl; | |
f0f4c343 AD |
646 | struct resource *hpet_res; |
647 | resource_size_t res_start; | |
1da177e4 LT |
648 | |
649 | if (!phys || !size) | |
650 | return -EINVAL; | |
651 | ||
4be44fcd | 652 | hpet_tbl = (struct acpi_table_hpet *)__acpi_map_table(phys, size); |
1da177e4 LT |
653 | if (!hpet_tbl) { |
654 | printk(KERN_WARNING PREFIX "Unable to map HPET\n"); | |
655 | return -ENODEV; | |
656 | } | |
657 | ||
658 | if (hpet_tbl->addr.space_id != ACPI_SPACE_MEM) { | |
659 | printk(KERN_WARNING PREFIX "HPET timers must be located in " | |
660 | "memory.\n"); | |
661 | return -1; | |
662 | } | |
f0f4c343 AD |
663 | |
664 | #define HPET_RESOURCE_NAME_SIZE 9 | |
665 | hpet_res = alloc_bootmem(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE); | |
666 | if (hpet_res) { | |
667 | memset(hpet_res, 0, sizeof(*hpet_res)); | |
668 | hpet_res->name = (void *)&hpet_res[1]; | |
669 | hpet_res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; | |
670 | snprintf((char *)hpet_res->name, HPET_RESOURCE_NAME_SIZE, | |
671 | "HPET %u", hpet_tbl->number); | |
672 | hpet_res->end = (1 * 1024) - 1; | |
673 | } | |
674 | ||
1da177e4 | 675 | #ifdef CONFIG_X86_64 |
4be44fcd LB |
676 | vxtime.hpet_address = hpet_tbl->addr.addrl | |
677 | ((long)hpet_tbl->addr.addrh << 32); | |
1da177e4 | 678 | |
4be44fcd LB |
679 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", |
680 | hpet_tbl->id, vxtime.hpet_address); | |
f0f4c343 AD |
681 | |
682 | res_start = vxtime.hpet_address; | |
4be44fcd | 683 | #else /* X86 */ |
1da177e4 LT |
684 | { |
685 | extern unsigned long hpet_address; | |
686 | ||
687 | hpet_address = hpet_tbl->addr.addrl; | |
688 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", | |
4be44fcd | 689 | hpet_tbl->id, hpet_address); |
f0f4c343 AD |
690 | |
691 | res_start = hpet_address; | |
1da177e4 | 692 | } |
4be44fcd | 693 | #endif /* X86 */ |
1da177e4 | 694 | |
f0f4c343 AD |
695 | if (hpet_res) { |
696 | hpet_res->start = res_start; | |
697 | hpet_res->end += res_start; | |
698 | insert_resource(&iomem_resource, hpet_res); | |
699 | } | |
700 | ||
1da177e4 LT |
701 | return 0; |
702 | } | |
703 | #else | |
704 | #define acpi_parse_hpet NULL | |
705 | #endif | |
706 | ||
707 | #ifdef CONFIG_X86_PM_TIMER | |
708 | extern u32 pmtmr_ioport; | |
709 | #endif | |
710 | ||
711 | static int __init acpi_parse_fadt(unsigned long phys, unsigned long size) | |
712 | { | |
793c2388 | 713 | struct fadt_descriptor *fadt = NULL; |
1da177e4 | 714 | |
793c2388 | 715 | fadt = (struct fadt_descriptor *)__acpi_map_table(phys, size); |
4be44fcd | 716 | if (!fadt) { |
1da177e4 LT |
717 | printk(KERN_WARNING PREFIX "Unable to map FADT\n"); |
718 | return 0; | |
719 | } | |
1da177e4 LT |
720 | /* initialize sci_int early for INT_SRC_OVR MADT parsing */ |
721 | acpi_fadt.sci_int = fadt->sci_int; | |
1da177e4 | 722 | |
90660ec3 JD |
723 | /* initialize rev and apic_phys_dest_mode for x86_64 genapic */ |
724 | acpi_fadt.revision = fadt->revision; | |
4be44fcd LB |
725 | acpi_fadt.force_apic_physical_destination_mode = |
726 | fadt->force_apic_physical_destination_mode; | |
90660ec3 | 727 | |
1da177e4 LT |
728 | #ifdef CONFIG_X86_PM_TIMER |
729 | /* detect the location of the ACPI PM Timer */ | |
730 | if (fadt->revision >= FADT2_REVISION_ID) { | |
731 | /* FADT rev. 2 */ | |
4be44fcd LB |
732 | if (fadt->xpm_tmr_blk.address_space_id != |
733 | ACPI_ADR_SPACE_SYSTEM_IO) | |
1da177e4 LT |
734 | return 0; |
735 | ||
736 | pmtmr_ioport = fadt->xpm_tmr_blk.address; | |
e6e87b4b DSL |
737 | /* |
738 | * "X" fields are optional extensions to the original V1.0 | |
739 | * fields, so we must selectively expand V1.0 fields if the | |
740 | * corresponding X field is zero. | |
741 | */ | |
742 | if (!pmtmr_ioport) | |
743 | pmtmr_ioport = fadt->V1_pm_tmr_blk; | |
1da177e4 LT |
744 | } else { |
745 | /* FADT rev. 1 */ | |
746 | pmtmr_ioport = fadt->V1_pm_tmr_blk; | |
747 | } | |
748 | if (pmtmr_ioport) | |
4be44fcd LB |
749 | printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n", |
750 | pmtmr_ioport); | |
1da177e4 LT |
751 | #endif |
752 | return 0; | |
753 | } | |
754 | ||
4be44fcd | 755 | unsigned long __init acpi_find_rsdp(void) |
1da177e4 | 756 | { |
4be44fcd | 757 | unsigned long rsdp_phys = 0; |
1da177e4 LT |
758 | |
759 | if (efi_enabled) { | |
b2c99e3c BH |
760 | if (efi.acpi20 != EFI_INVALID_TABLE_ADDR) |
761 | return efi.acpi20; | |
762 | else if (efi.acpi != EFI_INVALID_TABLE_ADDR) | |
763 | return efi.acpi; | |
1da177e4 LT |
764 | } |
765 | /* | |
766 | * Scan memory looking for the RSDP signature. First search EBDA (low | |
767 | * memory) paragraphs and then search upper memory (E0000-FFFFF). | |
768 | */ | |
4be44fcd | 769 | rsdp_phys = acpi_scan_rsdp(0, 0x400); |
1da177e4 | 770 | if (!rsdp_phys) |
4be44fcd | 771 | rsdp_phys = acpi_scan_rsdp(0xE0000, 0x20000); |
1da177e4 LT |
772 | |
773 | return rsdp_phys; | |
774 | } | |
775 | ||
776 | #ifdef CONFIG_X86_LOCAL_APIC | |
777 | /* | |
778 | * Parse LAPIC entries in MADT | |
779 | * returns 0 on success, < 0 on error | |
780 | */ | |
4be44fcd | 781 | static int __init acpi_parse_madt_lapic_entries(void) |
1da177e4 LT |
782 | { |
783 | int count; | |
784 | ||
0fcd2709 AK |
785 | if (!cpu_has_apic) |
786 | return -ENODEV; | |
787 | ||
1da177e4 LT |
788 | /* |
789 | * Note that the LAPIC address is obtained from the MADT (32-bit value) | |
790 | * and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value). | |
791 | */ | |
792 | ||
4be44fcd LB |
793 | count = |
794 | acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR, | |
795 | acpi_parse_lapic_addr_ovr, 0); | |
1da177e4 | 796 | if (count < 0) { |
4be44fcd LB |
797 | printk(KERN_ERR PREFIX |
798 | "Error parsing LAPIC address override entry\n"); | |
1da177e4 LT |
799 | return count; |
800 | } | |
801 | ||
802 | mp_register_lapic_address(acpi_lapic_addr); | |
803 | ||
804 | count = acpi_table_parse_madt(ACPI_MADT_LAPIC, acpi_parse_lapic, | |
4be44fcd LB |
805 | MAX_APICS); |
806 | if (!count) { | |
1da177e4 LT |
807 | printk(KERN_ERR PREFIX "No LAPIC entries present\n"); |
808 | /* TBD: Cleanup to allow fallback to MPS */ | |
809 | return -ENODEV; | |
4be44fcd | 810 | } else if (count < 0) { |
1da177e4 LT |
811 | printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n"); |
812 | /* TBD: Cleanup to allow fallback to MPS */ | |
813 | return count; | |
814 | } | |
815 | ||
4be44fcd LB |
816 | count = |
817 | acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi, 0); | |
1da177e4 LT |
818 | if (count < 0) { |
819 | printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); | |
820 | /* TBD: Cleanup to allow fallback to MPS */ | |
821 | return count; | |
822 | } | |
823 | return 0; | |
824 | } | |
4be44fcd | 825 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 826 | |
8466361a | 827 | #ifdef CONFIG_X86_IO_APIC |
1da177e4 LT |
828 | /* |
829 | * Parse IOAPIC related entries in MADT | |
830 | * returns 0 on success, < 0 on error | |
831 | */ | |
4be44fcd | 832 | static int __init acpi_parse_madt_ioapic_entries(void) |
1da177e4 LT |
833 | { |
834 | int count; | |
835 | ||
836 | /* | |
837 | * ACPI interpreter is required to complete interrupt setup, | |
838 | * so if it is off, don't enumerate the io-apics with ACPI. | |
839 | * If MPS is present, it will handle them, | |
840 | * otherwise the system will stay in PIC mode | |
841 | */ | |
842 | if (acpi_disabled || acpi_noirq) { | |
843 | return -ENODEV; | |
4be44fcd | 844 | } |
1da177e4 | 845 | |
9cfda2c9 | 846 | if (!cpu_has_apic) |
d3b6a349 AK |
847 | return -ENODEV; |
848 | ||
1da177e4 | 849 | /* |
4be44fcd | 850 | * if "noapic" boot option, don't look for IO-APICs |
1da177e4 LT |
851 | */ |
852 | if (skip_ioapic_setup) { | |
853 | printk(KERN_INFO PREFIX "Skipping IOAPIC probe " | |
4be44fcd | 854 | "due to 'noapic' option.\n"); |
1da177e4 LT |
855 | return -ENODEV; |
856 | } | |
857 | ||
4be44fcd LB |
858 | count = |
859 | acpi_table_parse_madt(ACPI_MADT_IOAPIC, acpi_parse_ioapic, | |
860 | MAX_IO_APICS); | |
1da177e4 LT |
861 | if (!count) { |
862 | printk(KERN_ERR PREFIX "No IOAPIC entries present\n"); | |
863 | return -ENODEV; | |
4be44fcd | 864 | } else if (count < 0) { |
1da177e4 LT |
865 | printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n"); |
866 | return count; | |
867 | } | |
868 | ||
4be44fcd LB |
869 | count = |
870 | acpi_table_parse_madt(ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr, | |
871 | NR_IRQ_VECTORS); | |
1da177e4 | 872 | if (count < 0) { |
4be44fcd LB |
873 | printk(KERN_ERR PREFIX |
874 | "Error parsing interrupt source overrides entry\n"); | |
1da177e4 LT |
875 | /* TBD: Cleanup to allow fallback to MPS */ |
876 | return count; | |
877 | } | |
878 | ||
879 | /* | |
880 | * If BIOS did not supply an INT_SRC_OVR for the SCI | |
881 | * pretend we got one so we can set the SCI flags. | |
882 | */ | |
883 | if (!acpi_sci_override_gsi) | |
884 | acpi_sci_ioapic_setup(acpi_fadt.sci_int, 0, 0); | |
885 | ||
886 | /* Fill in identity legacy mapings where no override */ | |
887 | mp_config_acpi_legacy_irqs(); | |
888 | ||
4be44fcd LB |
889 | count = |
890 | acpi_table_parse_madt(ACPI_MADT_NMI_SRC, acpi_parse_nmi_src, | |
891 | NR_IRQ_VECTORS); | |
1da177e4 LT |
892 | if (count < 0) { |
893 | printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n"); | |
894 | /* TBD: Cleanup to allow fallback to MPS */ | |
895 | return count; | |
896 | } | |
897 | ||
898 | return 0; | |
899 | } | |
900 | #else | |
901 | static inline int acpi_parse_madt_ioapic_entries(void) | |
902 | { | |
903 | return -1; | |
904 | } | |
8466361a | 905 | #endif /* !CONFIG_X86_IO_APIC */ |
1da177e4 | 906 | |
4be44fcd | 907 | static void __init acpi_process_madt(void) |
1da177e4 LT |
908 | { |
909 | #ifdef CONFIG_X86_LOCAL_APIC | |
910 | int count, error; | |
911 | ||
912 | count = acpi_table_parse(ACPI_APIC, acpi_parse_madt); | |
913 | if (count >= 1) { | |
914 | ||
915 | /* | |
916 | * Parse MADT LAPIC entries | |
917 | */ | |
918 | error = acpi_parse_madt_lapic_entries(); | |
919 | if (!error) { | |
920 | acpi_lapic = 1; | |
921 | ||
911a62d4 VP |
922 | #ifdef CONFIG_X86_GENERICARCH |
923 | generic_bigsmp_probe(); | |
924 | #endif | |
1da177e4 LT |
925 | /* |
926 | * Parse MADT IO-APIC entries | |
927 | */ | |
928 | error = acpi_parse_madt_ioapic_entries(); | |
929 | if (!error) { | |
930 | acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; | |
931 | acpi_irq_balance_set(NULL); | |
932 | acpi_ioapic = 1; | |
933 | ||
934 | smp_found_config = 1; | |
935 | clustered_apic_check(); | |
936 | } | |
937 | } | |
938 | if (error == -EINVAL) { | |
939 | /* | |
940 | * Dell Precision Workstation 410, 610 come here. | |
941 | */ | |
4be44fcd LB |
942 | printk(KERN_ERR PREFIX |
943 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1da177e4 LT |
944 | disable_acpi(); |
945 | } | |
946 | } | |
947 | #endif | |
948 | return; | |
949 | } | |
950 | ||
aea00143 AP |
951 | #ifdef __i386__ |
952 | ||
aea00143 AP |
953 | static int __init disable_acpi_irq(struct dmi_system_id *d) |
954 | { | |
955 | if (!acpi_force) { | |
956 | printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n", | |
957 | d->ident); | |
958 | acpi_noirq_set(); | |
959 | } | |
960 | return 0; | |
961 | } | |
962 | ||
963 | static int __init disable_acpi_pci(struct dmi_system_id *d) | |
964 | { | |
965 | if (!acpi_force) { | |
966 | printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n", | |
967 | d->ident); | |
968 | acpi_disable_pci(); | |
969 | } | |
970 | return 0; | |
971 | } | |
aea00143 AP |
972 | |
973 | static int __init dmi_disable_acpi(struct dmi_system_id *d) | |
974 | { | |
975 | if (!acpi_force) { | |
4be44fcd | 976 | printk(KERN_NOTICE "%s detected: acpi off\n", d->ident); |
aea00143 AP |
977 | disable_acpi(); |
978 | } else { | |
979 | printk(KERN_NOTICE | |
980 | "Warning: DMI blacklist says broken, but acpi forced\n"); | |
981 | } | |
982 | return 0; | |
983 | } | |
984 | ||
985 | /* | |
986 | * Limit ACPI to CPU enumeration for HT | |
987 | */ | |
988 | static int __init force_acpi_ht(struct dmi_system_id *d) | |
989 | { | |
990 | if (!acpi_force) { | |
4be44fcd LB |
991 | printk(KERN_NOTICE "%s detected: force use of acpi=ht\n", |
992 | d->ident); | |
aea00143 AP |
993 | disable_acpi(); |
994 | acpi_ht = 1; | |
995 | } else { | |
996 | printk(KERN_NOTICE | |
997 | "Warning: acpi=force overrules DMI blacklist: acpi=ht\n"); | |
998 | } | |
999 | return 0; | |
1000 | } | |
1001 | ||
1002 | /* | |
1003 | * If your system is blacklisted here, but you find that acpi=force | |
1004 | * works for you, please contact acpi-devel@sourceforge.net | |
1005 | */ | |
1006 | static struct dmi_system_id __initdata acpi_dmi_table[] = { | |
1007 | /* | |
1008 | * Boxes that need ACPI disabled | |
1009 | */ | |
1010 | { | |
4be44fcd LB |
1011 | .callback = dmi_disable_acpi, |
1012 | .ident = "IBM Thinkpad", | |
1013 | .matches = { | |
1014 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1015 | DMI_MATCH(DMI_BOARD_NAME, "2629H1G"), | |
1016 | }, | |
1017 | }, | |
aea00143 AP |
1018 | |
1019 | /* | |
1020 | * Boxes that need acpi=ht | |
1021 | */ | |
1022 | { | |
4be44fcd LB |
1023 | .callback = force_acpi_ht, |
1024 | .ident = "FSC Primergy T850", | |
1025 | .matches = { | |
1026 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), | |
1027 | DMI_MATCH(DMI_PRODUCT_NAME, "PRIMERGY T850"), | |
1028 | }, | |
1029 | }, | |
aea00143 | 1030 | { |
4be44fcd LB |
1031 | .callback = force_acpi_ht, |
1032 | .ident = "DELL GX240", | |
1033 | .matches = { | |
1034 | DMI_MATCH(DMI_BOARD_VENDOR, "Dell Computer Corporation"), | |
1035 | DMI_MATCH(DMI_BOARD_NAME, "OptiPlex GX240"), | |
1036 | }, | |
1037 | }, | |
aea00143 | 1038 | { |
4be44fcd LB |
1039 | .callback = force_acpi_ht, |
1040 | .ident = "HP VISUALIZE NT Workstation", | |
1041 | .matches = { | |
1042 | DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), | |
1043 | DMI_MATCH(DMI_PRODUCT_NAME, "HP VISUALIZE NT Workstation"), | |
1044 | }, | |
1045 | }, | |
aea00143 | 1046 | { |
4be44fcd LB |
1047 | .callback = force_acpi_ht, |
1048 | .ident = "Compaq Workstation W8000", | |
1049 | .matches = { | |
1050 | DMI_MATCH(DMI_SYS_VENDOR, "Compaq"), | |
1051 | DMI_MATCH(DMI_PRODUCT_NAME, "Workstation W8000"), | |
1052 | }, | |
1053 | }, | |
aea00143 | 1054 | { |
4be44fcd LB |
1055 | .callback = force_acpi_ht, |
1056 | .ident = "ASUS P4B266", | |
1057 | .matches = { | |
1058 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1059 | DMI_MATCH(DMI_BOARD_NAME, "P4B266"), | |
1060 | }, | |
1061 | }, | |
aea00143 | 1062 | { |
4be44fcd LB |
1063 | .callback = force_acpi_ht, |
1064 | .ident = "ASUS P2B-DS", | |
1065 | .matches = { | |
1066 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1067 | DMI_MATCH(DMI_BOARD_NAME, "P2B-DS"), | |
1068 | }, | |
1069 | }, | |
aea00143 | 1070 | { |
4be44fcd LB |
1071 | .callback = force_acpi_ht, |
1072 | .ident = "ASUS CUR-DLS", | |
1073 | .matches = { | |
1074 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1075 | DMI_MATCH(DMI_BOARD_NAME, "CUR-DLS"), | |
1076 | }, | |
1077 | }, | |
aea00143 | 1078 | { |
4be44fcd LB |
1079 | .callback = force_acpi_ht, |
1080 | .ident = "ABIT i440BX-W83977", | |
1081 | .matches = { | |
1082 | DMI_MATCH(DMI_BOARD_VENDOR, "ABIT <http://www.abit.com>"), | |
1083 | DMI_MATCH(DMI_BOARD_NAME, "i440BX-W83977 (BP6)"), | |
1084 | }, | |
1085 | }, | |
aea00143 | 1086 | { |
4be44fcd LB |
1087 | .callback = force_acpi_ht, |
1088 | .ident = "IBM Bladecenter", | |
1089 | .matches = { | |
1090 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1091 | DMI_MATCH(DMI_BOARD_NAME, "IBM eServer BladeCenter HS20"), | |
1092 | }, | |
1093 | }, | |
aea00143 | 1094 | { |
4be44fcd LB |
1095 | .callback = force_acpi_ht, |
1096 | .ident = "IBM eServer xSeries 360", | |
1097 | .matches = { | |
1098 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1099 | DMI_MATCH(DMI_BOARD_NAME, "eServer xSeries 360"), | |
1100 | }, | |
1101 | }, | |
aea00143 | 1102 | { |
4be44fcd LB |
1103 | .callback = force_acpi_ht, |
1104 | .ident = "IBM eserver xSeries 330", | |
1105 | .matches = { | |
1106 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1107 | DMI_MATCH(DMI_BOARD_NAME, "eserver xSeries 330"), | |
1108 | }, | |
1109 | }, | |
aea00143 | 1110 | { |
4be44fcd LB |
1111 | .callback = force_acpi_ht, |
1112 | .ident = "IBM eserver xSeries 440", | |
1113 | .matches = { | |
1114 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1115 | DMI_MATCH(DMI_PRODUCT_NAME, "eserver xSeries 440"), | |
1116 | }, | |
1117 | }, | |
aea00143 | 1118 | |
aea00143 AP |
1119 | /* |
1120 | * Boxes that need ACPI PCI IRQ routing disabled | |
1121 | */ | |
1122 | { | |
4be44fcd LB |
1123 | .callback = disable_acpi_irq, |
1124 | .ident = "ASUS A7V", | |
1125 | .matches = { | |
1126 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"), | |
1127 | DMI_MATCH(DMI_BOARD_NAME, "<A7V>"), | |
1128 | /* newer BIOS, Revision 1011, does work */ | |
1129 | DMI_MATCH(DMI_BIOS_VERSION, | |
1130 | "ASUS A7V ACPI BIOS Revision 1007"), | |
1131 | }, | |
1132 | }, | |
aea00143 AP |
1133 | |
1134 | /* | |
1135 | * Boxes that need ACPI PCI IRQ routing and PCI scan disabled | |
1136 | */ | |
4be44fcd LB |
1137 | { /* _BBN 0 bug */ |
1138 | .callback = disable_acpi_pci, | |
1139 | .ident = "ASUS PR-DLS", | |
1140 | .matches = { | |
1141 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1142 | DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"), | |
1143 | DMI_MATCH(DMI_BIOS_VERSION, | |
1144 | "ASUS PR-DLS ACPI BIOS Revision 1010"), | |
1145 | DMI_MATCH(DMI_BIOS_DATE, "03/21/2003") | |
1146 | }, | |
1147 | }, | |
aea00143 | 1148 | { |
4be44fcd LB |
1149 | .callback = disable_acpi_pci, |
1150 | .ident = "Acer TravelMate 36x Laptop", | |
1151 | .matches = { | |
1152 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
1153 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), | |
1154 | }, | |
1155 | }, | |
4be44fcd | 1156 | {} |
aea00143 AP |
1157 | }; |
1158 | ||
4be44fcd | 1159 | #endif /* __i386__ */ |
aea00143 | 1160 | |
1da177e4 LT |
1161 | /* |
1162 | * acpi_boot_table_init() and acpi_boot_init() | |
1163 | * called from setup_arch(), always. | |
1164 | * 1. checksums all tables | |
1165 | * 2. enumerates lapics | |
1166 | * 3. enumerates io-apics | |
1167 | * | |
1168 | * acpi_table_init() is separate to allow reading SRAT without | |
1169 | * other side effects. | |
1170 | * | |
1171 | * side effects of acpi_boot_init: | |
1172 | * acpi_lapic = 1 if LAPIC found | |
1173 | * acpi_ioapic = 1 if IOAPIC found | |
1174 | * if (acpi_lapic && acpi_ioapic) smp_found_config = 1; | |
1175 | * if acpi_blacklisted() acpi_disabled = 1; | |
1176 | * acpi_irq_model=... | |
1177 | * ... | |
1178 | * | |
1179 | * return value: (currently ignored) | |
1180 | * 0: success | |
1181 | * !0: failure | |
1182 | */ | |
1183 | ||
4be44fcd | 1184 | int __init acpi_boot_table_init(void) |
1da177e4 LT |
1185 | { |
1186 | int error; | |
1187 | ||
aea00143 AP |
1188 | #ifdef __i386__ |
1189 | dmi_check_system(acpi_dmi_table); | |
1190 | #endif | |
1191 | ||
1da177e4 LT |
1192 | /* |
1193 | * If acpi_disabled, bail out | |
1194 | * One exception: acpi=ht continues far enough to enumerate LAPICs | |
1195 | */ | |
1196 | if (acpi_disabled && !acpi_ht) | |
4be44fcd | 1197 | return 1; |
1da177e4 LT |
1198 | |
1199 | /* | |
1200 | * Initialize the ACPI boot-time table parser. | |
1201 | */ | |
1202 | error = acpi_table_init(); | |
1203 | if (error) { | |
1204 | disable_acpi(); | |
1205 | return error; | |
1206 | } | |
1da177e4 LT |
1207 | |
1208 | acpi_table_parse(ACPI_BOOT, acpi_parse_sbf); | |
1209 | ||
1210 | /* | |
1211 | * blacklist may disable ACPI entirely | |
1212 | */ | |
1213 | error = acpi_blacklisted(); | |
1214 | if (error) { | |
1da177e4 LT |
1215 | if (acpi_force) { |
1216 | printk(KERN_WARNING PREFIX "acpi=force override\n"); | |
1217 | } else { | |
1218 | printk(KERN_WARNING PREFIX "Disabling ACPI support\n"); | |
1219 | disable_acpi(); | |
1220 | return error; | |
1221 | } | |
1222 | } | |
1223 | ||
1224 | return 0; | |
1225 | } | |
1226 | ||
1da177e4 LT |
1227 | int __init acpi_boot_init(void) |
1228 | { | |
1229 | /* | |
1230 | * If acpi_disabled, bail out | |
1231 | * One exception: acpi=ht continues far enough to enumerate LAPICs | |
1232 | */ | |
1233 | if (acpi_disabled && !acpi_ht) | |
4be44fcd | 1234 | return 1; |
1da177e4 LT |
1235 | |
1236 | acpi_table_parse(ACPI_BOOT, acpi_parse_sbf); | |
1237 | ||
1238 | /* | |
1239 | * set sci_int and PM timer address | |
1240 | */ | |
1241 | acpi_table_parse(ACPI_FADT, acpi_parse_fadt); | |
1242 | ||
1243 | /* | |
1244 | * Process the Multiple APIC Description Table (MADT), if present | |
1245 | */ | |
1246 | acpi_process_madt(); | |
1247 | ||
1248 | acpi_table_parse(ACPI_HPET, acpi_parse_hpet); | |
1da177e4 LT |
1249 | |
1250 | return 0; | |
1251 | } | |
1a3f239d RR |
1252 | |
1253 | static int __init parse_acpi(char *arg) | |
1254 | { | |
1255 | if (!arg) | |
1256 | return -EINVAL; | |
1257 | ||
1258 | /* "acpi=off" disables both ACPI table parsing and interpreter */ | |
1259 | if (strcmp(arg, "off") == 0) { | |
1260 | disable_acpi(); | |
1261 | } | |
1262 | /* acpi=force to over-ride black-list */ | |
1263 | else if (strcmp(arg, "force") == 0) { | |
1264 | acpi_force = 1; | |
1265 | acpi_ht = 1; | |
1266 | acpi_disabled = 0; | |
1267 | } | |
1268 | /* acpi=strict disables out-of-spec workarounds */ | |
1269 | else if (strcmp(arg, "strict") == 0) { | |
1270 | acpi_strict = 1; | |
1271 | } | |
1272 | /* Limit ACPI just to boot-time to enable HT */ | |
1273 | else if (strcmp(arg, "ht") == 0) { | |
1274 | if (!acpi_force) | |
1275 | disable_acpi(); | |
1276 | acpi_ht = 1; | |
1277 | } | |
1278 | /* "acpi=noirq" disables ACPI interrupt routing */ | |
1279 | else if (strcmp(arg, "noirq") == 0) { | |
1280 | acpi_noirq_set(); | |
1281 | } else { | |
1282 | /* Core will printk when we return error. */ | |
1283 | return -EINVAL; | |
1284 | } | |
1285 | return 0; | |
1286 | } | |
1287 | early_param("acpi", parse_acpi); | |
1288 | ||
1289 | /* FIXME: Using pci= for an ACPI parameter is a travesty. */ | |
1290 | static int __init parse_pci(char *arg) | |
1291 | { | |
1292 | if (arg && strcmp(arg, "noacpi") == 0) | |
1293 | acpi_disable_pci(); | |
1294 | return 0; | |
1295 | } | |
1296 | early_param("pci", parse_pci); | |
1297 | ||
1298 | #ifdef CONFIG_X86_IO_APIC | |
1299 | static int __init parse_acpi_skip_timer_override(char *arg) | |
1300 | { | |
1301 | acpi_skip_timer_override = 1; | |
1302 | return 0; | |
1303 | } | |
1304 | early_param("acpi_skip_timer_override", parse_acpi_skip_timer_override); | |
1305 | #endif /* CONFIG_X86_IO_APIC */ | |
1306 | ||
1307 | static int __init setup_acpi_sci(char *s) | |
1308 | { | |
1309 | if (!s) | |
1310 | return -EINVAL; | |
1311 | if (!strcmp(s, "edge")) | |
1312 | acpi_sci_flags.trigger = 1; | |
1313 | else if (!strcmp(s, "level")) | |
1314 | acpi_sci_flags.trigger = 3; | |
1315 | else if (!strcmp(s, "high")) | |
1316 | acpi_sci_flags.polarity = 1; | |
1317 | else if (!strcmp(s, "low")) | |
1318 | acpi_sci_flags.polarity = 3; | |
1319 | else | |
1320 | return -EINVAL; | |
1321 | return 0; | |
1322 | } | |
1323 | early_param("acpi_sci", setup_acpi_sci); |