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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 | |
4be44fcd | 65 | #endif /* X86 */ |
1da177e4 LT |
66 | |
67 | #define BAD_MADT_ENTRY(entry, end) ( \ | |
68 | (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ | |
df6fd319 | 69 | ((acpi_table_entry_header *)entry)->length < sizeof(*entry)) |
1da177e4 LT |
70 | |
71 | #define PREFIX "ACPI: " | |
72 | ||
90d53909 | 73 | int acpi_noirq; /* skip ACPI IRQ initialization */ |
4be44fcd | 74 | int acpi_pci_disabled __initdata; /* skip ACPI PCI scan and IRQ initialization */ |
1da177e4 LT |
75 | int acpi_ht __initdata = 1; /* enable HT */ |
76 | ||
77 | int acpi_lapic; | |
78 | int acpi_ioapic; | |
79 | int acpi_strict; | |
80 | EXPORT_SYMBOL(acpi_strict); | |
81 | ||
82 | acpi_interrupt_flags acpi_sci_flags __initdata; | |
83 | int acpi_sci_override_gsi __initdata; | |
84 | int acpi_skip_timer_override __initdata; | |
85 | ||
86 | #ifdef CONFIG_X86_LOCAL_APIC | |
87 | static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; | |
88 | #endif | |
89 | ||
90 | #ifndef __HAVE_ARCH_CMPXCHG | |
91 | #warning ACPI uses CMPXCHG, i486 and later hardware | |
92 | #endif | |
93 | ||
94 | #define MAX_MADT_ENTRIES 256 | |
95 | u8 x86_acpiid_to_apicid[MAX_MADT_ENTRIES] = | |
1f3a7301 | 96 | {[0 ... MAX_MADT_ENTRIES - 1] = 0xff }; |
1da177e4 LT |
97 | EXPORT_SYMBOL(x86_acpiid_to_apicid); |
98 | ||
99 | /* -------------------------------------------------------------------------- | |
100 | Boot-time Configuration | |
101 | -------------------------------------------------------------------------- */ | |
102 | ||
103 | /* | |
104 | * The default interrupt routing model is PIC (8259). This gets | |
105 | * overriden if IOAPICs are enumerated (below). | |
106 | */ | |
4be44fcd | 107 | enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC; |
1da177e4 LT |
108 | |
109 | #ifdef CONFIG_X86_64 | |
110 | ||
111 | /* rely on all ACPI tables being in the direct mapping */ | |
112 | char *__acpi_map_table(unsigned long phys_addr, unsigned long size) | |
113 | { | |
114 | if (!phys_addr || !size) | |
4be44fcd | 115 | return NULL; |
1da177e4 | 116 | |
7a4a76cc | 117 | if (phys_addr+size <= (end_pfn_map << PAGE_SHIFT) + PAGE_SIZE) |
1da177e4 LT |
118 | return __va(phys_addr); |
119 | ||
120 | return NULL; | |
121 | } | |
122 | ||
123 | #else | |
124 | ||
125 | /* | |
126 | * Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END, | |
127 | * to map the target physical address. The problem is that set_fixmap() | |
128 | * provides a single page, and it is possible that the page is not | |
129 | * sufficient. | |
130 | * By using this area, we can map up to MAX_IO_APICS pages temporarily, | |
131 | * i.e. until the next __va_range() call. | |
132 | * | |
133 | * Important Safety Note: The fixed I/O APIC page numbers are *subtracted* | |
134 | * from the fixed base. That's why we start at FIX_IO_APIC_BASE_END and | |
135 | * count idx down while incrementing the phys address. | |
136 | */ | |
137 | char *__acpi_map_table(unsigned long phys, unsigned long size) | |
138 | { | |
139 | unsigned long base, offset, mapped_size; | |
140 | int idx; | |
141 | ||
4be44fcd LB |
142 | if (phys + size < 8 * 1024 * 1024) |
143 | return __va(phys); | |
1da177e4 LT |
144 | |
145 | offset = phys & (PAGE_SIZE - 1); | |
146 | mapped_size = PAGE_SIZE - offset; | |
147 | set_fixmap(FIX_ACPI_END, phys); | |
148 | base = fix_to_virt(FIX_ACPI_END); | |
149 | ||
150 | /* | |
151 | * Most cases can be covered by the below. | |
152 | */ | |
153 | idx = FIX_ACPI_END; | |
154 | while (mapped_size < size) { | |
155 | if (--idx < FIX_ACPI_BEGIN) | |
156 | return NULL; /* cannot handle this */ | |
157 | phys += PAGE_SIZE; | |
158 | set_fixmap(idx, phys); | |
159 | mapped_size += PAGE_SIZE; | |
160 | } | |
161 | ||
4be44fcd | 162 | return ((unsigned char *)base + offset); |
1da177e4 LT |
163 | } |
164 | #endif | |
165 | ||
166 | #ifdef CONFIG_PCI_MMCONFIG | |
54549391 GKH |
167 | /* The physical address of the MMCONFIG aperture. Set from ACPI tables. */ |
168 | struct acpi_table_mcfg_config *pci_mmcfg_config; | |
169 | int pci_mmcfg_config_num; | |
170 | ||
171 | int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size) | |
1da177e4 LT |
172 | { |
173 | struct acpi_table_mcfg *mcfg; | |
54549391 GKH |
174 | unsigned long i; |
175 | int config_size; | |
1da177e4 | 176 | |
87cb23a4 | 177 | if (!phys_addr || !size) |
1da177e4 LT |
178 | return -EINVAL; |
179 | ||
4be44fcd | 180 | mcfg = (struct acpi_table_mcfg *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
181 | if (!mcfg) { |
182 | printk(KERN_WARNING PREFIX "Unable to map MCFG\n"); | |
183 | return -ENODEV; | |
184 | } | |
185 | ||
54549391 GKH |
186 | /* how many config structures do we have */ |
187 | pci_mmcfg_config_num = 0; | |
188 | i = size - sizeof(struct acpi_table_mcfg); | |
189 | while (i >= sizeof(struct acpi_table_mcfg_config)) { | |
190 | ++pci_mmcfg_config_num; | |
191 | i -= sizeof(struct acpi_table_mcfg_config); | |
192 | }; | |
193 | if (pci_mmcfg_config_num == 0) { | |
194 | printk(KERN_ERR PREFIX "MMCONFIG has no entries\n"); | |
1da177e4 LT |
195 | return -ENODEV; |
196 | } | |
197 | ||
54549391 GKH |
198 | config_size = pci_mmcfg_config_num * sizeof(*pci_mmcfg_config); |
199 | pci_mmcfg_config = kmalloc(config_size, GFP_KERNEL); | |
200 | if (!pci_mmcfg_config) { | |
201 | printk(KERN_WARNING PREFIX | |
202 | "No memory for MCFG config tables\n"); | |
203 | return -ENOMEM; | |
204 | } | |
205 | ||
206 | memcpy(pci_mmcfg_config, &mcfg->config, config_size); | |
207 | for (i = 0; i < pci_mmcfg_config_num; ++i) { | |
208 | if (mcfg->config[i].base_reserved) { | |
209 | printk(KERN_ERR PREFIX | |
210 | "MMCONFIG not in low 4GB of memory\n"); | |
acc7c2e0 KR |
211 | kfree(pci_mmcfg_config); |
212 | pci_mmcfg_config_num = 0; | |
54549391 GKH |
213 | return -ENODEV; |
214 | } | |
215 | } | |
1da177e4 LT |
216 | |
217 | return 0; | |
218 | } | |
4be44fcd | 219 | #endif /* CONFIG_PCI_MMCONFIG */ |
1da177e4 LT |
220 | |
221 | #ifdef CONFIG_X86_LOCAL_APIC | |
4be44fcd | 222 | static int __init acpi_parse_madt(unsigned long phys_addr, unsigned long size) |
1da177e4 | 223 | { |
4be44fcd | 224 | struct acpi_table_madt *madt = NULL; |
1da177e4 | 225 | |
9cfda2c9 | 226 | if (!phys_addr || !size || !cpu_has_apic) |
1da177e4 LT |
227 | return -EINVAL; |
228 | ||
4be44fcd | 229 | madt = (struct acpi_table_madt *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
230 | if (!madt) { |
231 | printk(KERN_WARNING PREFIX "Unable to map MADT\n"); | |
232 | return -ENODEV; | |
233 | } | |
234 | ||
235 | if (madt->lapic_address) { | |
236 | acpi_lapic_addr = (u64) madt->lapic_address; | |
237 | ||
238 | printk(KERN_DEBUG PREFIX "Local APIC address 0x%08x\n", | |
4be44fcd | 239 | madt->lapic_address); |
1da177e4 LT |
240 | } |
241 | ||
242 | acpi_madt_oem_check(madt->header.oem_id, madt->header.oem_table_id); | |
4be44fcd | 243 | |
1da177e4 LT |
244 | return 0; |
245 | } | |
246 | ||
1da177e4 | 247 | static int __init |
4be44fcd | 248 | acpi_parse_lapic(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 | 249 | { |
4be44fcd | 250 | struct acpi_table_lapic *processor = NULL; |
1da177e4 | 251 | |
4be44fcd | 252 | processor = (struct acpi_table_lapic *)header; |
1da177e4 LT |
253 | |
254 | if (BAD_MADT_ENTRY(processor, end)) | |
255 | return -EINVAL; | |
256 | ||
257 | acpi_table_print_madt_entry(header); | |
258 | ||
7f66ae48 AR |
259 | /* Record local apic id only when enabled */ |
260 | if (processor->flags.enabled) | |
261 | x86_acpiid_to_apicid[processor->acpi_id] = processor->id; | |
1da177e4 | 262 | |
7f66ae48 AR |
263 | /* |
264 | * We need to register disabled CPU as well to permit | |
265 | * counting disabled CPUs. This allows us to size | |
266 | * cpus_possible_map more accurately, to permit | |
267 | * to not preallocating memory for all NR_CPUS | |
268 | * when we use CPU hotplug. | |
269 | */ | |
4be44fcd LB |
270 | mp_register_lapic(processor->id, /* APIC ID */ |
271 | processor->flags.enabled); /* Enabled? */ | |
1da177e4 LT |
272 | |
273 | return 0; | |
274 | } | |
275 | ||
276 | static int __init | |
4be44fcd LB |
277 | acpi_parse_lapic_addr_ovr(acpi_table_entry_header * header, |
278 | const unsigned long end) | |
1da177e4 LT |
279 | { |
280 | struct acpi_table_lapic_addr_ovr *lapic_addr_ovr = NULL; | |
281 | ||
4be44fcd | 282 | lapic_addr_ovr = (struct acpi_table_lapic_addr_ovr *)header; |
1da177e4 LT |
283 | |
284 | if (BAD_MADT_ENTRY(lapic_addr_ovr, end)) | |
285 | return -EINVAL; | |
286 | ||
287 | acpi_lapic_addr = lapic_addr_ovr->address; | |
288 | ||
289 | return 0; | |
290 | } | |
291 | ||
292 | static int __init | |
4be44fcd | 293 | acpi_parse_lapic_nmi(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
294 | { |
295 | struct acpi_table_lapic_nmi *lapic_nmi = NULL; | |
296 | ||
4be44fcd | 297 | lapic_nmi = (struct acpi_table_lapic_nmi *)header; |
1da177e4 LT |
298 | |
299 | if (BAD_MADT_ENTRY(lapic_nmi, end)) | |
300 | return -EINVAL; | |
301 | ||
302 | acpi_table_print_madt_entry(header); | |
303 | ||
304 | if (lapic_nmi->lint != 1) | |
305 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
306 | ||
307 | return 0; | |
308 | } | |
309 | ||
4be44fcd | 310 | #endif /*CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 311 | |
8466361a | 312 | #ifdef CONFIG_X86_IO_APIC |
1da177e4 LT |
313 | |
314 | static int __init | |
4be44fcd | 315 | acpi_parse_ioapic(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
316 | { |
317 | struct acpi_table_ioapic *ioapic = NULL; | |
318 | ||
4be44fcd | 319 | ioapic = (struct acpi_table_ioapic *)header; |
1da177e4 LT |
320 | |
321 | if (BAD_MADT_ENTRY(ioapic, end)) | |
322 | return -EINVAL; | |
4be44fcd | 323 | |
1da177e4 LT |
324 | acpi_table_print_madt_entry(header); |
325 | ||
4be44fcd LB |
326 | mp_register_ioapic(ioapic->id, |
327 | ioapic->address, ioapic->global_irq_base); | |
328 | ||
1da177e4 LT |
329 | return 0; |
330 | } | |
331 | ||
332 | /* | |
333 | * Parse Interrupt Source Override for the ACPI SCI | |
334 | */ | |
281ea49b | 335 | static void acpi_sci_ioapic_setup(u32 bus_irq, u32 gsi, u16 polarity, u16 trigger) |
1da177e4 LT |
336 | { |
337 | if (trigger == 0) /* compatible SCI trigger is level */ | |
338 | trigger = 3; | |
339 | ||
340 | if (polarity == 0) /* compatible SCI polarity is low */ | |
341 | polarity = 3; | |
342 | ||
343 | /* Command-line over-ride via acpi_sci= */ | |
344 | if (acpi_sci_flags.trigger) | |
345 | trigger = acpi_sci_flags.trigger; | |
346 | ||
347 | if (acpi_sci_flags.polarity) | |
348 | polarity = acpi_sci_flags.polarity; | |
349 | ||
350 | /* | |
4be44fcd | 351 | * mp_config_acpi_legacy_irqs() already setup IRQs < 16 |
1da177e4 LT |
352 | * If GSI is < 16, this will update its flags, |
353 | * else it will create a new mp_irqs[] entry. | |
354 | */ | |
281ea49b | 355 | mp_override_legacy_irq(bus_irq, polarity, trigger, gsi); |
1da177e4 LT |
356 | |
357 | /* | |
358 | * stash over-ride to indicate we've been here | |
359 | * and for later update of acpi_fadt | |
360 | */ | |
281ea49b | 361 | acpi_sci_override_gsi = bus_irq; |
1da177e4 LT |
362 | return; |
363 | } | |
364 | ||
365 | static int __init | |
4be44fcd LB |
366 | acpi_parse_int_src_ovr(acpi_table_entry_header * header, |
367 | const unsigned long end) | |
1da177e4 LT |
368 | { |
369 | struct acpi_table_int_src_ovr *intsrc = NULL; | |
370 | ||
4be44fcd | 371 | intsrc = (struct acpi_table_int_src_ovr *)header; |
1da177e4 LT |
372 | |
373 | if (BAD_MADT_ENTRY(intsrc, end)) | |
374 | return -EINVAL; | |
375 | ||
376 | acpi_table_print_madt_entry(header); | |
377 | ||
378 | if (intsrc->bus_irq == acpi_fadt.sci_int) { | |
281ea49b | 379 | acpi_sci_ioapic_setup(intsrc->bus_irq, intsrc->global_irq, |
4be44fcd LB |
380 | intsrc->flags.polarity, |
381 | intsrc->flags.trigger); | |
1da177e4 LT |
382 | return 0; |
383 | } | |
384 | ||
385 | if (acpi_skip_timer_override && | |
4be44fcd LB |
386 | intsrc->bus_irq == 0 && intsrc->global_irq == 2) { |
387 | printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n"); | |
388 | return 0; | |
1da177e4 LT |
389 | } |
390 | ||
4be44fcd LB |
391 | mp_override_legacy_irq(intsrc->bus_irq, |
392 | intsrc->flags.polarity, | |
393 | intsrc->flags.trigger, intsrc->global_irq); | |
1da177e4 LT |
394 | |
395 | return 0; | |
396 | } | |
397 | ||
1da177e4 | 398 | static int __init |
4be44fcd | 399 | acpi_parse_nmi_src(acpi_table_entry_header * header, const unsigned long end) |
1da177e4 LT |
400 | { |
401 | struct acpi_table_nmi_src *nmi_src = NULL; | |
402 | ||
4be44fcd | 403 | nmi_src = (struct acpi_table_nmi_src *)header; |
1da177e4 LT |
404 | |
405 | if (BAD_MADT_ENTRY(nmi_src, end)) | |
406 | return -EINVAL; | |
407 | ||
408 | acpi_table_print_madt_entry(header); | |
409 | ||
410 | /* TBD: Support nimsrc entries? */ | |
411 | ||
412 | return 0; | |
413 | } | |
414 | ||
4be44fcd | 415 | #endif /* CONFIG_X86_IO_APIC */ |
1da177e4 | 416 | |
1da177e4 LT |
417 | /* |
418 | * acpi_pic_sci_set_trigger() | |
419 | * | |
420 | * use ELCR to set PIC-mode trigger type for SCI | |
421 | * | |
422 | * If a PIC-mode SCI is not recognized or gives spurious IRQ7's | |
423 | * it may require Edge Trigger -- use "acpi_sci=edge" | |
424 | * | |
425 | * Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers | |
426 | * for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge. | |
427 | * ECLR1 is IRQ's 0-7 (IRQ 0, 1, 2 must be 0) | |
428 | * ECLR2 is IRQ's 8-15 (IRQ 8, 13 must be 0) | |
429 | */ | |
430 | ||
4be44fcd | 431 | void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger) |
1da177e4 LT |
432 | { |
433 | unsigned int mask = 1 << irq; | |
434 | unsigned int old, new; | |
435 | ||
436 | /* Real old ELCR mask */ | |
437 | old = inb(0x4d0) | (inb(0x4d1) << 8); | |
438 | ||
439 | /* | |
440 | * If we use ACPI to set PCI irq's, then we should clear ELCR | |
441 | * since we will set it correctly as we enable the PCI irq | |
442 | * routing. | |
443 | */ | |
444 | new = acpi_noirq ? old : 0; | |
445 | ||
446 | /* | |
447 | * Update SCI information in the ELCR, it isn't in the PCI | |
448 | * routing tables.. | |
449 | */ | |
450 | switch (trigger) { | |
4be44fcd | 451 | case 1: /* Edge - clear */ |
1da177e4 LT |
452 | new &= ~mask; |
453 | break; | |
4be44fcd | 454 | case 3: /* Level - set */ |
1da177e4 LT |
455 | new |= mask; |
456 | break; | |
457 | } | |
458 | ||
459 | if (old == new) | |
460 | return; | |
461 | ||
462 | printk(PREFIX "setting ELCR to %04x (from %04x)\n", new, old); | |
463 | outb(new, 0x4d0); | |
464 | outb(new >> 8, 0x4d1); | |
465 | } | |
466 | ||
1da177e4 LT |
467 | int acpi_gsi_to_irq(u32 gsi, unsigned int *irq) |
468 | { | |
f023d764 | 469 | *irq = gsi; |
1da177e4 LT |
470 | return 0; |
471 | } | |
472 | ||
1f3a6a15 KK |
473 | /* |
474 | * success: return IRQ number (>=0) | |
475 | * failure: return < 0 | |
476 | */ | |
cb654695 | 477 | int acpi_register_gsi(u32 gsi, int triggering, int polarity) |
1da177e4 LT |
478 | { |
479 | unsigned int irq; | |
480 | unsigned int plat_gsi = gsi; | |
481 | ||
482 | #ifdef CONFIG_PCI | |
483 | /* | |
484 | * Make sure all (legacy) PCI IRQs are set as level-triggered. | |
485 | */ | |
486 | if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { | |
487 | extern void eisa_set_level_irq(unsigned int irq); | |
488 | ||
cb654695 | 489 | if (triggering == ACPI_LEVEL_SENSITIVE) |
4be44fcd | 490 | eisa_set_level_irq(gsi); |
1da177e4 LT |
491 | } |
492 | #endif | |
493 | ||
494 | #ifdef CONFIG_X86_IO_APIC | |
495 | if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC) { | |
cb654695 | 496 | plat_gsi = mp_register_gsi(gsi, triggering, polarity); |
1da177e4 LT |
497 | } |
498 | #endif | |
499 | acpi_gsi_to_irq(plat_gsi, &irq); | |
500 | return irq; | |
501 | } | |
4be44fcd | 502 | |
1da177e4 LT |
503 | EXPORT_SYMBOL(acpi_register_gsi); |
504 | ||
505 | /* | |
506 | * ACPI based hotplug support for CPU | |
507 | */ | |
508 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | |
4be44fcd | 509 | int acpi_map_lsapic(acpi_handle handle, int *pcpu) |
1da177e4 | 510 | { |
73fea175 AR |
511 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
512 | union acpi_object *obj; | |
513 | struct acpi_table_lapic *lapic; | |
514 | cpumask_t tmp_map, new_map; | |
515 | u8 physid; | |
516 | int cpu; | |
517 | ||
518 | if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer))) | |
519 | return -EINVAL; | |
520 | ||
521 | if (!buffer.length || !buffer.pointer) | |
522 | return -EINVAL; | |
523 | ||
524 | obj = buffer.pointer; | |
525 | if (obj->type != ACPI_TYPE_BUFFER || | |
526 | obj->buffer.length < sizeof(*lapic)) { | |
527 | kfree(buffer.pointer); | |
528 | return -EINVAL; | |
529 | } | |
530 | ||
531 | lapic = (struct acpi_table_lapic *)obj->buffer.pointer; | |
532 | ||
533 | if ((lapic->header.type != ACPI_MADT_LAPIC) || | |
534 | (!lapic->flags.enabled)) { | |
535 | kfree(buffer.pointer); | |
536 | return -EINVAL; | |
537 | } | |
538 | ||
539 | physid = lapic->id; | |
540 | ||
541 | kfree(buffer.pointer); | |
542 | buffer.length = ACPI_ALLOCATE_BUFFER; | |
543 | buffer.pointer = NULL; | |
544 | ||
545 | tmp_map = cpu_present_map; | |
546 | mp_register_lapic(physid, lapic->flags.enabled); | |
547 | ||
548 | /* | |
549 | * If mp_register_lapic successfully generates a new logical cpu | |
550 | * number, then the following will get us exactly what was mapped | |
551 | */ | |
552 | cpus_andnot(new_map, cpu_present_map, tmp_map); | |
553 | if (cpus_empty(new_map)) { | |
554 | printk ("Unable to map lapic to logical cpu number\n"); | |
555 | return -EINVAL; | |
556 | } | |
557 | ||
558 | cpu = first_cpu(new_map); | |
559 | ||
560 | *pcpu = cpu; | |
561 | return 0; | |
1da177e4 | 562 | } |
1da177e4 | 563 | |
4be44fcd | 564 | EXPORT_SYMBOL(acpi_map_lsapic); |
1da177e4 | 565 | |
4be44fcd | 566 | int acpi_unmap_lsapic(int cpu) |
1da177e4 | 567 | { |
73fea175 AR |
568 | int i; |
569 | ||
570 | for_each_possible_cpu(i) { | |
571 | if (x86_acpiid_to_apicid[i] == x86_cpu_to_apicid[cpu]) { | |
572 | x86_acpiid_to_apicid[i] = -1; | |
573 | break; | |
574 | } | |
575 | } | |
576 | x86_cpu_to_apicid[cpu] = -1; | |
577 | cpu_clear(cpu, cpu_present_map); | |
578 | num_processors--; | |
579 | ||
580 | return (0); | |
1da177e4 | 581 | } |
4be44fcd | 582 | |
1da177e4 | 583 | EXPORT_SYMBOL(acpi_unmap_lsapic); |
4be44fcd | 584 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ |
1da177e4 | 585 | |
4be44fcd | 586 | int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) |
b1bb248a KK |
587 | { |
588 | /* TBD */ | |
589 | return -EINVAL; | |
590 | } | |
4be44fcd | 591 | |
b1bb248a KK |
592 | EXPORT_SYMBOL(acpi_register_ioapic); |
593 | ||
4be44fcd | 594 | int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base) |
b1bb248a KK |
595 | { |
596 | /* TBD */ | |
597 | return -EINVAL; | |
598 | } | |
4be44fcd | 599 | |
b1bb248a KK |
600 | EXPORT_SYMBOL(acpi_unregister_ioapic); |
601 | ||
1da177e4 | 602 | static unsigned long __init |
4be44fcd | 603 | acpi_scan_rsdp(unsigned long start, unsigned long length) |
1da177e4 | 604 | { |
4be44fcd LB |
605 | unsigned long offset = 0; |
606 | unsigned long sig_len = sizeof("RSD PTR ") - 1; | |
1da177e4 LT |
607 | |
608 | /* | |
609 | * Scan all 16-byte boundaries of the physical memory region for the | |
610 | * RSDP signature. | |
611 | */ | |
612 | for (offset = 0; offset < length; offset += 16) { | |
f6c2e333 | 613 | if (strncmp((char *)(phys_to_virt(start) + offset), "RSD PTR ", sig_len)) |
1da177e4 LT |
614 | continue; |
615 | return (start + offset); | |
616 | } | |
617 | ||
618 | return 0; | |
619 | } | |
620 | ||
621 | static int __init acpi_parse_sbf(unsigned long phys_addr, unsigned long size) | |
622 | { | |
623 | struct acpi_table_sbf *sb; | |
624 | ||
625 | if (!phys_addr || !size) | |
4be44fcd | 626 | return -EINVAL; |
1da177e4 | 627 | |
4be44fcd | 628 | sb = (struct acpi_table_sbf *)__acpi_map_table(phys_addr, size); |
1da177e4 LT |
629 | if (!sb) { |
630 | printk(KERN_WARNING PREFIX "Unable to map SBF\n"); | |
631 | return -ENODEV; | |
632 | } | |
633 | ||
4be44fcd | 634 | sbf_port = sb->sbf_cmos; /* Save CMOS port */ |
1da177e4 LT |
635 | |
636 | return 0; | |
637 | } | |
638 | ||
1da177e4 LT |
639 | #ifdef CONFIG_HPET_TIMER |
640 | ||
641 | static int __init acpi_parse_hpet(unsigned long phys, unsigned long size) | |
642 | { | |
643 | struct acpi_table_hpet *hpet_tbl; | |
f0f4c343 AD |
644 | struct resource *hpet_res; |
645 | resource_size_t res_start; | |
1da177e4 LT |
646 | |
647 | if (!phys || !size) | |
648 | return -EINVAL; | |
649 | ||
4be44fcd | 650 | hpet_tbl = (struct acpi_table_hpet *)__acpi_map_table(phys, size); |
1da177e4 LT |
651 | if (!hpet_tbl) { |
652 | printk(KERN_WARNING PREFIX "Unable to map HPET\n"); | |
653 | return -ENODEV; | |
654 | } | |
655 | ||
656 | if (hpet_tbl->addr.space_id != ACPI_SPACE_MEM) { | |
657 | printk(KERN_WARNING PREFIX "HPET timers must be located in " | |
658 | "memory.\n"); | |
659 | return -1; | |
660 | } | |
f0f4c343 AD |
661 | |
662 | #define HPET_RESOURCE_NAME_SIZE 9 | |
663 | hpet_res = alloc_bootmem(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE); | |
664 | if (hpet_res) { | |
665 | memset(hpet_res, 0, sizeof(*hpet_res)); | |
666 | hpet_res->name = (void *)&hpet_res[1]; | |
667 | hpet_res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; | |
668 | snprintf((char *)hpet_res->name, HPET_RESOURCE_NAME_SIZE, | |
669 | "HPET %u", hpet_tbl->number); | |
670 | hpet_res->end = (1 * 1024) - 1; | |
671 | } | |
672 | ||
1da177e4 | 673 | #ifdef CONFIG_X86_64 |
4be44fcd LB |
674 | vxtime.hpet_address = hpet_tbl->addr.addrl | |
675 | ((long)hpet_tbl->addr.addrh << 32); | |
1da177e4 | 676 | |
4be44fcd LB |
677 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", |
678 | hpet_tbl->id, vxtime.hpet_address); | |
f0f4c343 AD |
679 | |
680 | res_start = vxtime.hpet_address; | |
4be44fcd | 681 | #else /* X86 */ |
1da177e4 LT |
682 | { |
683 | extern unsigned long hpet_address; | |
684 | ||
685 | hpet_address = hpet_tbl->addr.addrl; | |
686 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", | |
4be44fcd | 687 | hpet_tbl->id, hpet_address); |
f0f4c343 AD |
688 | |
689 | res_start = hpet_address; | |
1da177e4 | 690 | } |
4be44fcd | 691 | #endif /* X86 */ |
1da177e4 | 692 | |
f0f4c343 AD |
693 | if (hpet_res) { |
694 | hpet_res->start = res_start; | |
695 | hpet_res->end += res_start; | |
696 | insert_resource(&iomem_resource, hpet_res); | |
697 | } | |
698 | ||
1da177e4 LT |
699 | return 0; |
700 | } | |
701 | #else | |
702 | #define acpi_parse_hpet NULL | |
703 | #endif | |
704 | ||
705 | #ifdef CONFIG_X86_PM_TIMER | |
706 | extern u32 pmtmr_ioport; | |
707 | #endif | |
708 | ||
709 | static int __init acpi_parse_fadt(unsigned long phys, unsigned long size) | |
710 | { | |
793c2388 | 711 | struct fadt_descriptor *fadt = NULL; |
1da177e4 | 712 | |
793c2388 | 713 | fadt = (struct fadt_descriptor *)__acpi_map_table(phys, size); |
4be44fcd | 714 | if (!fadt) { |
1da177e4 LT |
715 | printk(KERN_WARNING PREFIX "Unable to map FADT\n"); |
716 | return 0; | |
717 | } | |
1da177e4 LT |
718 | /* initialize sci_int early for INT_SRC_OVR MADT parsing */ |
719 | acpi_fadt.sci_int = fadt->sci_int; | |
1da177e4 | 720 | |
90660ec3 JD |
721 | /* initialize rev and apic_phys_dest_mode for x86_64 genapic */ |
722 | acpi_fadt.revision = fadt->revision; | |
4be44fcd LB |
723 | acpi_fadt.force_apic_physical_destination_mode = |
724 | fadt->force_apic_physical_destination_mode; | |
90660ec3 | 725 | |
1da177e4 LT |
726 | #ifdef CONFIG_X86_PM_TIMER |
727 | /* detect the location of the ACPI PM Timer */ | |
728 | if (fadt->revision >= FADT2_REVISION_ID) { | |
729 | /* FADT rev. 2 */ | |
4be44fcd LB |
730 | if (fadt->xpm_tmr_blk.address_space_id != |
731 | ACPI_ADR_SPACE_SYSTEM_IO) | |
1da177e4 LT |
732 | return 0; |
733 | ||
734 | pmtmr_ioport = fadt->xpm_tmr_blk.address; | |
e6e87b4b DSL |
735 | /* |
736 | * "X" fields are optional extensions to the original V1.0 | |
737 | * fields, so we must selectively expand V1.0 fields if the | |
738 | * corresponding X field is zero. | |
739 | */ | |
740 | if (!pmtmr_ioport) | |
741 | pmtmr_ioport = fadt->V1_pm_tmr_blk; | |
1da177e4 LT |
742 | } else { |
743 | /* FADT rev. 1 */ | |
744 | pmtmr_ioport = fadt->V1_pm_tmr_blk; | |
745 | } | |
746 | if (pmtmr_ioport) | |
4be44fcd LB |
747 | printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n", |
748 | pmtmr_ioport); | |
1da177e4 LT |
749 | #endif |
750 | return 0; | |
751 | } | |
752 | ||
4be44fcd | 753 | unsigned long __init acpi_find_rsdp(void) |
1da177e4 | 754 | { |
4be44fcd | 755 | unsigned long rsdp_phys = 0; |
1da177e4 LT |
756 | |
757 | if (efi_enabled) { | |
b2c99e3c BH |
758 | if (efi.acpi20 != EFI_INVALID_TABLE_ADDR) |
759 | return efi.acpi20; | |
760 | else if (efi.acpi != EFI_INVALID_TABLE_ADDR) | |
761 | return efi.acpi; | |
1da177e4 LT |
762 | } |
763 | /* | |
764 | * Scan memory looking for the RSDP signature. First search EBDA (low | |
765 | * memory) paragraphs and then search upper memory (E0000-FFFFF). | |
766 | */ | |
4be44fcd | 767 | rsdp_phys = acpi_scan_rsdp(0, 0x400); |
1da177e4 | 768 | if (!rsdp_phys) |
4be44fcd | 769 | rsdp_phys = acpi_scan_rsdp(0xE0000, 0x20000); |
1da177e4 LT |
770 | |
771 | return rsdp_phys; | |
772 | } | |
773 | ||
774 | #ifdef CONFIG_X86_LOCAL_APIC | |
775 | /* | |
776 | * Parse LAPIC entries in MADT | |
777 | * returns 0 on success, < 0 on error | |
778 | */ | |
4be44fcd | 779 | static int __init acpi_parse_madt_lapic_entries(void) |
1da177e4 LT |
780 | { |
781 | int count; | |
782 | ||
0fcd2709 AK |
783 | if (!cpu_has_apic) |
784 | return -ENODEV; | |
785 | ||
1da177e4 LT |
786 | /* |
787 | * Note that the LAPIC address is obtained from the MADT (32-bit value) | |
788 | * and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value). | |
789 | */ | |
790 | ||
4be44fcd LB |
791 | count = |
792 | acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR, | |
793 | acpi_parse_lapic_addr_ovr, 0); | |
1da177e4 | 794 | if (count < 0) { |
4be44fcd LB |
795 | printk(KERN_ERR PREFIX |
796 | "Error parsing LAPIC address override entry\n"); | |
1da177e4 LT |
797 | return count; |
798 | } | |
799 | ||
800 | mp_register_lapic_address(acpi_lapic_addr); | |
801 | ||
802 | count = acpi_table_parse_madt(ACPI_MADT_LAPIC, acpi_parse_lapic, | |
4be44fcd LB |
803 | MAX_APICS); |
804 | if (!count) { | |
1da177e4 LT |
805 | printk(KERN_ERR PREFIX "No LAPIC entries present\n"); |
806 | /* TBD: Cleanup to allow fallback to MPS */ | |
807 | return -ENODEV; | |
4be44fcd | 808 | } else if (count < 0) { |
1da177e4 LT |
809 | printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n"); |
810 | /* TBD: Cleanup to allow fallback to MPS */ | |
811 | return count; | |
812 | } | |
813 | ||
4be44fcd LB |
814 | count = |
815 | acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi, 0); | |
1da177e4 LT |
816 | if (count < 0) { |
817 | printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); | |
818 | /* TBD: Cleanup to allow fallback to MPS */ | |
819 | return count; | |
820 | } | |
821 | return 0; | |
822 | } | |
4be44fcd | 823 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 824 | |
8466361a | 825 | #ifdef CONFIG_X86_IO_APIC |
1da177e4 LT |
826 | /* |
827 | * Parse IOAPIC related entries in MADT | |
828 | * returns 0 on success, < 0 on error | |
829 | */ | |
4be44fcd | 830 | static int __init acpi_parse_madt_ioapic_entries(void) |
1da177e4 LT |
831 | { |
832 | int count; | |
833 | ||
834 | /* | |
835 | * ACPI interpreter is required to complete interrupt setup, | |
836 | * so if it is off, don't enumerate the io-apics with ACPI. | |
837 | * If MPS is present, it will handle them, | |
838 | * otherwise the system will stay in PIC mode | |
839 | */ | |
840 | if (acpi_disabled || acpi_noirq) { | |
841 | return -ENODEV; | |
4be44fcd | 842 | } |
1da177e4 | 843 | |
9cfda2c9 | 844 | if (!cpu_has_apic) |
d3b6a349 AK |
845 | return -ENODEV; |
846 | ||
1da177e4 | 847 | /* |
4be44fcd | 848 | * if "noapic" boot option, don't look for IO-APICs |
1da177e4 LT |
849 | */ |
850 | if (skip_ioapic_setup) { | |
851 | printk(KERN_INFO PREFIX "Skipping IOAPIC probe " | |
4be44fcd | 852 | "due to 'noapic' option.\n"); |
1da177e4 LT |
853 | return -ENODEV; |
854 | } | |
855 | ||
4be44fcd LB |
856 | count = |
857 | acpi_table_parse_madt(ACPI_MADT_IOAPIC, acpi_parse_ioapic, | |
858 | MAX_IO_APICS); | |
1da177e4 LT |
859 | if (!count) { |
860 | printk(KERN_ERR PREFIX "No IOAPIC entries present\n"); | |
861 | return -ENODEV; | |
4be44fcd | 862 | } else if (count < 0) { |
1da177e4 LT |
863 | printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n"); |
864 | return count; | |
865 | } | |
866 | ||
4be44fcd LB |
867 | count = |
868 | acpi_table_parse_madt(ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr, | |
869 | NR_IRQ_VECTORS); | |
1da177e4 | 870 | if (count < 0) { |
4be44fcd LB |
871 | printk(KERN_ERR PREFIX |
872 | "Error parsing interrupt source overrides entry\n"); | |
1da177e4 LT |
873 | /* TBD: Cleanup to allow fallback to MPS */ |
874 | return count; | |
875 | } | |
876 | ||
877 | /* | |
878 | * If BIOS did not supply an INT_SRC_OVR for the SCI | |
879 | * pretend we got one so we can set the SCI flags. | |
880 | */ | |
881 | if (!acpi_sci_override_gsi) | |
281ea49b | 882 | acpi_sci_ioapic_setup(acpi_fadt.sci_int, acpi_fadt.sci_int, 0, 0); |
1da177e4 LT |
883 | |
884 | /* Fill in identity legacy mapings where no override */ | |
885 | mp_config_acpi_legacy_irqs(); | |
886 | ||
4be44fcd LB |
887 | count = |
888 | acpi_table_parse_madt(ACPI_MADT_NMI_SRC, acpi_parse_nmi_src, | |
889 | NR_IRQ_VECTORS); | |
1da177e4 LT |
890 | if (count < 0) { |
891 | printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n"); | |
892 | /* TBD: Cleanup to allow fallback to MPS */ | |
893 | return count; | |
894 | } | |
895 | ||
896 | return 0; | |
897 | } | |
898 | #else | |
899 | static inline int acpi_parse_madt_ioapic_entries(void) | |
900 | { | |
901 | return -1; | |
902 | } | |
8466361a | 903 | #endif /* !CONFIG_X86_IO_APIC */ |
1da177e4 | 904 | |
4be44fcd | 905 | static void __init acpi_process_madt(void) |
1da177e4 LT |
906 | { |
907 | #ifdef CONFIG_X86_LOCAL_APIC | |
908 | int count, error; | |
909 | ||
910 | count = acpi_table_parse(ACPI_APIC, acpi_parse_madt); | |
911 | if (count >= 1) { | |
912 | ||
913 | /* | |
914 | * Parse MADT LAPIC entries | |
915 | */ | |
916 | error = acpi_parse_madt_lapic_entries(); | |
917 | if (!error) { | |
918 | acpi_lapic = 1; | |
919 | ||
911a62d4 VP |
920 | #ifdef CONFIG_X86_GENERICARCH |
921 | generic_bigsmp_probe(); | |
922 | #endif | |
1da177e4 LT |
923 | /* |
924 | * Parse MADT IO-APIC entries | |
925 | */ | |
926 | error = acpi_parse_madt_ioapic_entries(); | |
927 | if (!error) { | |
928 | acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; | |
929 | acpi_irq_balance_set(NULL); | |
930 | acpi_ioapic = 1; | |
931 | ||
932 | smp_found_config = 1; | |
933 | clustered_apic_check(); | |
934 | } | |
935 | } | |
936 | if (error == -EINVAL) { | |
937 | /* | |
938 | * Dell Precision Workstation 410, 610 come here. | |
939 | */ | |
4be44fcd LB |
940 | printk(KERN_ERR PREFIX |
941 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1da177e4 LT |
942 | disable_acpi(); |
943 | } | |
944 | } | |
945 | #endif | |
946 | return; | |
947 | } | |
948 | ||
aea00143 AP |
949 | #ifdef __i386__ |
950 | ||
aea00143 AP |
951 | static int __init disable_acpi_irq(struct dmi_system_id *d) |
952 | { | |
953 | if (!acpi_force) { | |
954 | printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n", | |
955 | d->ident); | |
956 | acpi_noirq_set(); | |
957 | } | |
958 | return 0; | |
959 | } | |
960 | ||
961 | static int __init disable_acpi_pci(struct dmi_system_id *d) | |
962 | { | |
963 | if (!acpi_force) { | |
964 | printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n", | |
965 | d->ident); | |
966 | acpi_disable_pci(); | |
967 | } | |
968 | return 0; | |
969 | } | |
aea00143 AP |
970 | |
971 | static int __init dmi_disable_acpi(struct dmi_system_id *d) | |
972 | { | |
973 | if (!acpi_force) { | |
4be44fcd | 974 | printk(KERN_NOTICE "%s detected: acpi off\n", d->ident); |
aea00143 AP |
975 | disable_acpi(); |
976 | } else { | |
977 | printk(KERN_NOTICE | |
978 | "Warning: DMI blacklist says broken, but acpi forced\n"); | |
979 | } | |
980 | return 0; | |
981 | } | |
982 | ||
983 | /* | |
984 | * Limit ACPI to CPU enumeration for HT | |
985 | */ | |
986 | static int __init force_acpi_ht(struct dmi_system_id *d) | |
987 | { | |
988 | if (!acpi_force) { | |
4be44fcd LB |
989 | printk(KERN_NOTICE "%s detected: force use of acpi=ht\n", |
990 | d->ident); | |
aea00143 AP |
991 | disable_acpi(); |
992 | acpi_ht = 1; | |
993 | } else { | |
994 | printk(KERN_NOTICE | |
995 | "Warning: acpi=force overrules DMI blacklist: acpi=ht\n"); | |
996 | } | |
997 | return 0; | |
998 | } | |
999 | ||
1000 | /* | |
1001 | * If your system is blacklisted here, but you find that acpi=force | |
1002 | * works for you, please contact acpi-devel@sourceforge.net | |
1003 | */ | |
1004 | static struct dmi_system_id __initdata acpi_dmi_table[] = { | |
1005 | /* | |
1006 | * Boxes that need ACPI disabled | |
1007 | */ | |
1008 | { | |
4be44fcd LB |
1009 | .callback = dmi_disable_acpi, |
1010 | .ident = "IBM Thinkpad", | |
1011 | .matches = { | |
1012 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1013 | DMI_MATCH(DMI_BOARD_NAME, "2629H1G"), | |
1014 | }, | |
1015 | }, | |
aea00143 AP |
1016 | |
1017 | /* | |
1018 | * Boxes that need acpi=ht | |
1019 | */ | |
1020 | { | |
4be44fcd LB |
1021 | .callback = force_acpi_ht, |
1022 | .ident = "FSC Primergy T850", | |
1023 | .matches = { | |
1024 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), | |
1025 | DMI_MATCH(DMI_PRODUCT_NAME, "PRIMERGY T850"), | |
1026 | }, | |
1027 | }, | |
aea00143 | 1028 | { |
4be44fcd LB |
1029 | .callback = force_acpi_ht, |
1030 | .ident = "DELL GX240", | |
1031 | .matches = { | |
1032 | DMI_MATCH(DMI_BOARD_VENDOR, "Dell Computer Corporation"), | |
1033 | DMI_MATCH(DMI_BOARD_NAME, "OptiPlex GX240"), | |
1034 | }, | |
1035 | }, | |
aea00143 | 1036 | { |
4be44fcd LB |
1037 | .callback = force_acpi_ht, |
1038 | .ident = "HP VISUALIZE NT Workstation", | |
1039 | .matches = { | |
1040 | DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), | |
1041 | DMI_MATCH(DMI_PRODUCT_NAME, "HP VISUALIZE NT Workstation"), | |
1042 | }, | |
1043 | }, | |
aea00143 | 1044 | { |
4be44fcd LB |
1045 | .callback = force_acpi_ht, |
1046 | .ident = "Compaq Workstation W8000", | |
1047 | .matches = { | |
1048 | DMI_MATCH(DMI_SYS_VENDOR, "Compaq"), | |
1049 | DMI_MATCH(DMI_PRODUCT_NAME, "Workstation W8000"), | |
1050 | }, | |
1051 | }, | |
aea00143 | 1052 | { |
4be44fcd LB |
1053 | .callback = force_acpi_ht, |
1054 | .ident = "ASUS P4B266", | |
1055 | .matches = { | |
1056 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1057 | DMI_MATCH(DMI_BOARD_NAME, "P4B266"), | |
1058 | }, | |
1059 | }, | |
aea00143 | 1060 | { |
4be44fcd LB |
1061 | .callback = force_acpi_ht, |
1062 | .ident = "ASUS P2B-DS", | |
1063 | .matches = { | |
1064 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1065 | DMI_MATCH(DMI_BOARD_NAME, "P2B-DS"), | |
1066 | }, | |
1067 | }, | |
aea00143 | 1068 | { |
4be44fcd LB |
1069 | .callback = force_acpi_ht, |
1070 | .ident = "ASUS CUR-DLS", | |
1071 | .matches = { | |
1072 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1073 | DMI_MATCH(DMI_BOARD_NAME, "CUR-DLS"), | |
1074 | }, | |
1075 | }, | |
aea00143 | 1076 | { |
4be44fcd LB |
1077 | .callback = force_acpi_ht, |
1078 | .ident = "ABIT i440BX-W83977", | |
1079 | .matches = { | |
1080 | DMI_MATCH(DMI_BOARD_VENDOR, "ABIT <http://www.abit.com>"), | |
1081 | DMI_MATCH(DMI_BOARD_NAME, "i440BX-W83977 (BP6)"), | |
1082 | }, | |
1083 | }, | |
aea00143 | 1084 | { |
4be44fcd LB |
1085 | .callback = force_acpi_ht, |
1086 | .ident = "IBM Bladecenter", | |
1087 | .matches = { | |
1088 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1089 | DMI_MATCH(DMI_BOARD_NAME, "IBM eServer BladeCenter HS20"), | |
1090 | }, | |
1091 | }, | |
aea00143 | 1092 | { |
4be44fcd LB |
1093 | .callback = force_acpi_ht, |
1094 | .ident = "IBM eServer xSeries 360", | |
1095 | .matches = { | |
1096 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1097 | DMI_MATCH(DMI_BOARD_NAME, "eServer xSeries 360"), | |
1098 | }, | |
1099 | }, | |
aea00143 | 1100 | { |
4be44fcd LB |
1101 | .callback = force_acpi_ht, |
1102 | .ident = "IBM eserver xSeries 330", | |
1103 | .matches = { | |
1104 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1105 | DMI_MATCH(DMI_BOARD_NAME, "eserver xSeries 330"), | |
1106 | }, | |
1107 | }, | |
aea00143 | 1108 | { |
4be44fcd LB |
1109 | .callback = force_acpi_ht, |
1110 | .ident = "IBM eserver xSeries 440", | |
1111 | .matches = { | |
1112 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1113 | DMI_MATCH(DMI_PRODUCT_NAME, "eserver xSeries 440"), | |
1114 | }, | |
1115 | }, | |
aea00143 | 1116 | |
aea00143 AP |
1117 | /* |
1118 | * Boxes that need ACPI PCI IRQ routing disabled | |
1119 | */ | |
1120 | { | |
4be44fcd LB |
1121 | .callback = disable_acpi_irq, |
1122 | .ident = "ASUS A7V", | |
1123 | .matches = { | |
1124 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"), | |
1125 | DMI_MATCH(DMI_BOARD_NAME, "<A7V>"), | |
1126 | /* newer BIOS, Revision 1011, does work */ | |
1127 | DMI_MATCH(DMI_BIOS_VERSION, | |
1128 | "ASUS A7V ACPI BIOS Revision 1007"), | |
1129 | }, | |
1130 | }, | |
aea00143 AP |
1131 | |
1132 | /* | |
1133 | * Boxes that need ACPI PCI IRQ routing and PCI scan disabled | |
1134 | */ | |
4be44fcd LB |
1135 | { /* _BBN 0 bug */ |
1136 | .callback = disable_acpi_pci, | |
1137 | .ident = "ASUS PR-DLS", | |
1138 | .matches = { | |
1139 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1140 | DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"), | |
1141 | DMI_MATCH(DMI_BIOS_VERSION, | |
1142 | "ASUS PR-DLS ACPI BIOS Revision 1010"), | |
1143 | DMI_MATCH(DMI_BIOS_DATE, "03/21/2003") | |
1144 | }, | |
1145 | }, | |
aea00143 | 1146 | { |
4be44fcd LB |
1147 | .callback = disable_acpi_pci, |
1148 | .ident = "Acer TravelMate 36x Laptop", | |
1149 | .matches = { | |
1150 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
1151 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), | |
1152 | }, | |
1153 | }, | |
4be44fcd | 1154 | {} |
aea00143 AP |
1155 | }; |
1156 | ||
4be44fcd | 1157 | #endif /* __i386__ */ |
aea00143 | 1158 | |
1da177e4 LT |
1159 | /* |
1160 | * acpi_boot_table_init() and acpi_boot_init() | |
1161 | * called from setup_arch(), always. | |
1162 | * 1. checksums all tables | |
1163 | * 2. enumerates lapics | |
1164 | * 3. enumerates io-apics | |
1165 | * | |
1166 | * acpi_table_init() is separate to allow reading SRAT without | |
1167 | * other side effects. | |
1168 | * | |
1169 | * side effects of acpi_boot_init: | |
1170 | * acpi_lapic = 1 if LAPIC found | |
1171 | * acpi_ioapic = 1 if IOAPIC found | |
1172 | * if (acpi_lapic && acpi_ioapic) smp_found_config = 1; | |
1173 | * if acpi_blacklisted() acpi_disabled = 1; | |
1174 | * acpi_irq_model=... | |
1175 | * ... | |
1176 | * | |
1177 | * return value: (currently ignored) | |
1178 | * 0: success | |
1179 | * !0: failure | |
1180 | */ | |
1181 | ||
4be44fcd | 1182 | int __init acpi_boot_table_init(void) |
1da177e4 LT |
1183 | { |
1184 | int error; | |
1185 | ||
aea00143 AP |
1186 | #ifdef __i386__ |
1187 | dmi_check_system(acpi_dmi_table); | |
1188 | #endif | |
1189 | ||
1da177e4 LT |
1190 | /* |
1191 | * If acpi_disabled, bail out | |
1192 | * One exception: acpi=ht continues far enough to enumerate LAPICs | |
1193 | */ | |
1194 | if (acpi_disabled && !acpi_ht) | |
4be44fcd | 1195 | return 1; |
1da177e4 LT |
1196 | |
1197 | /* | |
1198 | * Initialize the ACPI boot-time table parser. | |
1199 | */ | |
1200 | error = acpi_table_init(); | |
1201 | if (error) { | |
1202 | disable_acpi(); | |
1203 | return error; | |
1204 | } | |
1da177e4 LT |
1205 | |
1206 | acpi_table_parse(ACPI_BOOT, acpi_parse_sbf); | |
1207 | ||
1208 | /* | |
1209 | * blacklist may disable ACPI entirely | |
1210 | */ | |
1211 | error = acpi_blacklisted(); | |
1212 | if (error) { | |
1da177e4 LT |
1213 | if (acpi_force) { |
1214 | printk(KERN_WARNING PREFIX "acpi=force override\n"); | |
1215 | } else { | |
1216 | printk(KERN_WARNING PREFIX "Disabling ACPI support\n"); | |
1217 | disable_acpi(); | |
1218 | return error; | |
1219 | } | |
1220 | } | |
1221 | ||
1222 | return 0; | |
1223 | } | |
1224 | ||
1da177e4 LT |
1225 | int __init acpi_boot_init(void) |
1226 | { | |
1227 | /* | |
1228 | * If acpi_disabled, bail out | |
1229 | * One exception: acpi=ht continues far enough to enumerate LAPICs | |
1230 | */ | |
1231 | if (acpi_disabled && !acpi_ht) | |
4be44fcd | 1232 | return 1; |
1da177e4 LT |
1233 | |
1234 | acpi_table_parse(ACPI_BOOT, acpi_parse_sbf); | |
1235 | ||
1236 | /* | |
1237 | * set sci_int and PM timer address | |
1238 | */ | |
1239 | acpi_table_parse(ACPI_FADT, acpi_parse_fadt); | |
1240 | ||
1241 | /* | |
1242 | * Process the Multiple APIC Description Table (MADT), if present | |
1243 | */ | |
1244 | acpi_process_madt(); | |
1245 | ||
1246 | acpi_table_parse(ACPI_HPET, acpi_parse_hpet); | |
1da177e4 LT |
1247 | |
1248 | return 0; | |
1249 | } | |
1a3f239d RR |
1250 | |
1251 | static int __init parse_acpi(char *arg) | |
1252 | { | |
1253 | if (!arg) | |
1254 | return -EINVAL; | |
1255 | ||
1256 | /* "acpi=off" disables both ACPI table parsing and interpreter */ | |
1257 | if (strcmp(arg, "off") == 0) { | |
1258 | disable_acpi(); | |
1259 | } | |
1260 | /* acpi=force to over-ride black-list */ | |
1261 | else if (strcmp(arg, "force") == 0) { | |
1262 | acpi_force = 1; | |
1263 | acpi_ht = 1; | |
1264 | acpi_disabled = 0; | |
1265 | } | |
1266 | /* acpi=strict disables out-of-spec workarounds */ | |
1267 | else if (strcmp(arg, "strict") == 0) { | |
1268 | acpi_strict = 1; | |
1269 | } | |
1270 | /* Limit ACPI just to boot-time to enable HT */ | |
1271 | else if (strcmp(arg, "ht") == 0) { | |
1272 | if (!acpi_force) | |
1273 | disable_acpi(); | |
1274 | acpi_ht = 1; | |
1275 | } | |
1276 | /* "acpi=noirq" disables ACPI interrupt routing */ | |
1277 | else if (strcmp(arg, "noirq") == 0) { | |
1278 | acpi_noirq_set(); | |
1279 | } else { | |
1280 | /* Core will printk when we return error. */ | |
1281 | return -EINVAL; | |
1282 | } | |
1283 | return 0; | |
1284 | } | |
1285 | early_param("acpi", parse_acpi); | |
1286 | ||
1287 | /* FIXME: Using pci= for an ACPI parameter is a travesty. */ | |
1288 | static int __init parse_pci(char *arg) | |
1289 | { | |
1290 | if (arg && strcmp(arg, "noacpi") == 0) | |
1291 | acpi_disable_pci(); | |
1292 | return 0; | |
1293 | } | |
1294 | early_param("pci", parse_pci); | |
1295 | ||
1296 | #ifdef CONFIG_X86_IO_APIC | |
1297 | static int __init parse_acpi_skip_timer_override(char *arg) | |
1298 | { | |
1299 | acpi_skip_timer_override = 1; | |
1300 | return 0; | |
1301 | } | |
1302 | early_param("acpi_skip_timer_override", parse_acpi_skip_timer_override); | |
1303 | #endif /* CONFIG_X86_IO_APIC */ | |
1304 | ||
1305 | static int __init setup_acpi_sci(char *s) | |
1306 | { | |
1307 | if (!s) | |
1308 | return -EINVAL; | |
1309 | if (!strcmp(s, "edge")) | |
1310 | acpi_sci_flags.trigger = 1; | |
1311 | else if (!strcmp(s, "level")) | |
1312 | acpi_sci_flags.trigger = 3; | |
1313 | else if (!strcmp(s, "high")) | |
1314 | acpi_sci_flags.polarity = 1; | |
1315 | else if (!strcmp(s, "low")) | |
1316 | acpi_sci_flags.polarity = 3; | |
1317 | else | |
1318 | return -EINVAL; | |
1319 | return 0; | |
1320 | } | |
1321 | early_param("acpi_sci", setup_acpi_sci); |