]>
Commit | Line | Data |
---|---|---|
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 | 27 | #include <linux/acpi.h> |
d66bea57 | 28 | #include <linux/acpi_pmtmr.h> |
1da177e4 | 29 | #include <linux/efi.h> |
73fea175 | 30 | #include <linux/cpumask.h> |
186f4360 | 31 | #include <linux/export.h> |
aea00143 | 32 | #include <linux/dmi.h> |
b33fa1f3 | 33 | #include <linux/irq.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
f0f4c343 AD |
35 | #include <linux/bootmem.h> |
36 | #include <linux/ioport.h> | |
a31f8205 | 37 | #include <linux/pci.h> |
7b0a9114 | 38 | #include <linux/efi-bgrt.h> |
1da177e4 | 39 | |
f7a0c786 | 40 | #include <asm/irqdomain.h> |
b72d0db9 | 41 | #include <asm/pci_x86.h> |
1da177e4 LT |
42 | #include <asm/pgtable.h> |
43 | #include <asm/io_apic.h> | |
44 | #include <asm/apic.h> | |
45 | #include <asm/io.h> | |
1da177e4 | 46 | #include <asm/mpspec.h> |
dfac2189 | 47 | #include <asm/smp.h> |
95d76acc | 48 | #include <asm/i8259.h> |
1da177e4 | 49 | |
d6a77ead | 50 | #include "sleep.h" /* To include x86_acpi_suspend_lowlevel */ |
e8924acb | 51 | static int __initdata acpi_force = 0; |
c636f753 | 52 | int acpi_disabled; |
df3bb57d AK |
53 | EXPORT_SYMBOL(acpi_disabled); |
54 | ||
1da177e4 | 55 | #ifdef CONFIG_X86_64 |
1dcdd3d1 | 56 | # include <asm/proto.h> |
4be44fcd | 57 | #endif /* X86 */ |
1da177e4 | 58 | |
1da177e4 LT |
59 | #define PREFIX "ACPI: " |
60 | ||
90d53909 | 61 | int acpi_noirq; /* skip ACPI IRQ initialization */ |
6e4be1ff YL |
62 | int acpi_pci_disabled; /* skip ACPI PCI scan and IRQ initialization */ |
63 | EXPORT_SYMBOL(acpi_pci_disabled); | |
1da177e4 LT |
64 | |
65 | int acpi_lapic; | |
66 | int acpi_ioapic; | |
67 | int acpi_strict; | |
9ad95879 | 68 | int acpi_disable_cmcff; |
1da177e4 | 69 | |
5f3b1a8b | 70 | u8 acpi_sci_flags __initdata; |
1da177e4 LT |
71 | int acpi_sci_override_gsi __initdata; |
72 | int acpi_skip_timer_override __initdata; | |
fa18f477 | 73 | int acpi_use_timer_override __initdata; |
7f74f8f2 | 74 | int acpi_fix_pin2_polarity __initdata; |
1da177e4 LT |
75 | |
76 | #ifdef CONFIG_X86_LOCAL_APIC | |
77 | static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; | |
78 | #endif | |
79 | ||
d2d9c4a3 | 80 | #ifdef CONFIG_X86_IO_APIC |
5da2fd26 JL |
81 | /* |
82 | * Locks related to IOAPIC hotplug | |
83 | * Hotplug side: | |
84 | * ->device_hotplug_lock | |
85 | * ->acpi_ioapic_lock | |
86 | * ->ioapic_lock | |
87 | * Interrupt mapping side: | |
88 | * ->acpi_ioapic_lock | |
89 | * ->ioapic_mutex | |
90 | * ->ioapic_lock | |
91 | */ | |
92 | static DEFINE_MUTEX(acpi_ioapic_lock); | |
d2d9c4a3 | 93 | #endif |
5da2fd26 | 94 | |
1da177e4 LT |
95 | /* -------------------------------------------------------------------------- |
96 | Boot-time Configuration | |
97 | -------------------------------------------------------------------------- */ | |
98 | ||
99 | /* | |
100 | * The default interrupt routing model is PIC (8259). This gets | |
27b46d76 | 101 | * overridden if IOAPICs are enumerated (below). |
1da177e4 | 102 | */ |
4be44fcd | 103 | enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC; |
1da177e4 | 104 | |
1da177e4 | 105 | |
988856ee EB |
106 | /* |
107 | * ISA irqs by default are the first 16 gsis but can be | |
108 | * any gsi as specified by an interrupt source override. | |
109 | */ | |
110 | static u32 isa_irq_to_gsi[NR_IRQS_LEGACY] __read_mostly = { | |
111 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 | |
112 | }; | |
113 | ||
2c0a6894 | 114 | #define ACPI_INVALID_GSI INT_MIN |
988856ee | 115 | |
1da177e4 | 116 | /* |
45f1330a ZY |
117 | * This is just a simple wrapper around early_ioremap(), |
118 | * with sanity checks for phys == 0 and size == 0. | |
1da177e4 | 119 | */ |
2fdf0741 | 120 | char *__init __acpi_map_table(unsigned long phys, unsigned long size) |
1da177e4 | 121 | { |
1da177e4 | 122 | |
f34fa82b YL |
123 | if (!phys || !size) |
124 | return NULL; | |
125 | ||
7d97277b YL |
126 | return early_ioremap(phys, size); |
127 | } | |
45f1330a | 128 | |
7d97277b YL |
129 | void __init __acpi_unmap_table(char *map, unsigned long size) |
130 | { | |
131 | if (!map || !size) | |
132 | return; | |
1da177e4 | 133 | |
7d97277b | 134 | early_iounmap(map, size); |
1da177e4 | 135 | } |
1da177e4 | 136 | |
1da177e4 | 137 | #ifdef CONFIG_X86_LOCAL_APIC |
15a58ed1 | 138 | static int __init acpi_parse_madt(struct acpi_table_header *table) |
1da177e4 | 139 | { |
4be44fcd | 140 | struct acpi_table_madt *madt = NULL; |
1da177e4 | 141 | |
93984fbd | 142 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
1da177e4 LT |
143 | return -EINVAL; |
144 | ||
15a58ed1 | 145 | madt = (struct acpi_table_madt *)table; |
1da177e4 LT |
146 | if (!madt) { |
147 | printk(KERN_WARNING PREFIX "Unable to map MADT\n"); | |
148 | return -ENODEV; | |
149 | } | |
150 | ||
ad363f80 AS |
151 | if (madt->address) { |
152 | acpi_lapic_addr = (u64) madt->address; | |
1da177e4 LT |
153 | |
154 | printk(KERN_DEBUG PREFIX "Local APIC address 0x%08x\n", | |
ad363f80 | 155 | madt->address); |
1da177e4 LT |
156 | } |
157 | ||
306db03b IM |
158 | default_acpi_madt_oem_check(madt->header.oem_id, |
159 | madt->header.oem_table_id); | |
4be44fcd | 160 | |
1da177e4 LT |
161 | return 0; |
162 | } | |
163 | ||
7e1f85f9 JL |
164 | /** |
165 | * acpi_register_lapic - register a local apic and generates a logic cpu number | |
166 | * @id: local apic id to register | |
3e9e57fa | 167 | * @acpiid: ACPI id to register |
7e1f85f9 JL |
168 | * @enabled: this cpu is enabled or not |
169 | * | |
170 | * Returns the logic cpu number which maps to the local apic | |
171 | */ | |
3e9e57fa | 172 | static int acpi_register_lapic(int id, u32 acpiid, u8 enabled) |
dfac2189 | 173 | { |
fb3bbd6a | 174 | unsigned int ver = 0; |
3e9e57fa | 175 | int cpu; |
fb3bbd6a | 176 | |
82982d72 | 177 | if (id >= MAX_LOCAL_APIC) { |
d3bd0588 | 178 | printk(KERN_INFO PREFIX "skipped apicid that is too big\n"); |
7e1f85f9 | 179 | return -EINVAL; |
d3bd0588 YL |
180 | } |
181 | ||
fb3bbd6a | 182 | if (boot_cpu_physical_apicid != -1U) |
cff9ab2b | 183 | ver = boot_cpu_apic_version; |
fb3bbd6a | 184 | |
8f54969d | 185 | cpu = __generic_processor_info(id, ver, enabled); |
3e9e57fa VK |
186 | if (cpu >= 0) |
187 | early_per_cpu(x86_cpu_to_acpiid, cpu) = acpiid; | |
188 | ||
189 | return cpu; | |
dfac2189 AS |
190 | } |
191 | ||
7237d3de SS |
192 | static int __init |
193 | acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end) | |
194 | { | |
195 | struct acpi_madt_local_x2apic *processor = NULL; | |
a35fd282 YL |
196 | int apic_id; |
197 | u8 enabled; | |
7237d3de SS |
198 | |
199 | processor = (struct acpi_madt_local_x2apic *)header; | |
200 | ||
201 | if (BAD_MADT_ENTRY(processor, end)) | |
202 | return -EINVAL; | |
203 | ||
204 | acpi_table_print_madt_entry(header); | |
205 | ||
a35fd282 YL |
206 | apic_id = processor->local_apic_id; |
207 | enabled = processor->lapic_flags & ACPI_MADT_ENABLED; | |
7237d3de SS |
208 | #ifdef CONFIG_X86_X2APIC |
209 | /* | |
210 | * We need to register disabled CPU as well to permit | |
211 | * counting disabled CPUs. This allows us to size | |
212 | * cpus_possible_map more accurately, to permit | |
213 | * to not preallocating memory for all NR_CPUS | |
214 | * when we use CPU hotplug. | |
215 | */ | |
b7157acf | 216 | if (!apic->apic_id_valid(apic_id) && enabled) |
a35fd282 YL |
217 | printk(KERN_WARNING PREFIX "x2apic entry ignored\n"); |
218 | else | |
3e9e57fa | 219 | acpi_register_lapic(apic_id, processor->uid, enabled); |
7237d3de SS |
220 | #else |
221 | printk(KERN_WARNING PREFIX "x2apic entry ignored\n"); | |
222 | #endif | |
223 | ||
224 | return 0; | |
225 | } | |
226 | ||
1da177e4 | 227 | static int __init |
5f3b1a8b | 228 | acpi_parse_lapic(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 229 | { |
5f3b1a8b | 230 | struct acpi_madt_local_apic *processor = NULL; |
1da177e4 | 231 | |
5f3b1a8b | 232 | processor = (struct acpi_madt_local_apic *)header; |
1da177e4 LT |
233 | |
234 | if (BAD_MADT_ENTRY(processor, end)) | |
235 | return -EINVAL; | |
236 | ||
237 | acpi_table_print_madt_entry(header); | |
238 | ||
f3bf1dbe TG |
239 | /* Ignore invalid ID */ |
240 | if (processor->id == 0xff) | |
241 | return 0; | |
242 | ||
7f66ae48 AR |
243 | /* |
244 | * We need to register disabled CPU as well to permit | |
245 | * counting disabled CPUs. This allows us to size | |
246 | * cpus_possible_map more accurately, to permit | |
247 | * to not preallocating memory for all NR_CPUS | |
248 | * when we use CPU hotplug. | |
249 | */ | |
dfac2189 | 250 | acpi_register_lapic(processor->id, /* APIC ID */ |
3e9e57fa | 251 | processor->processor_id, /* ACPI ID */ |
dfac2189 | 252 | processor->lapic_flags & ACPI_MADT_ENABLED); |
1da177e4 LT |
253 | |
254 | return 0; | |
255 | } | |
256 | ||
ac049c1d JS |
257 | static int __init |
258 | acpi_parse_sapic(struct acpi_subtable_header *header, const unsigned long end) | |
259 | { | |
260 | struct acpi_madt_local_sapic *processor = NULL; | |
261 | ||
262 | processor = (struct acpi_madt_local_sapic *)header; | |
263 | ||
264 | if (BAD_MADT_ENTRY(processor, end)) | |
265 | return -EINVAL; | |
266 | ||
267 | acpi_table_print_madt_entry(header); | |
268 | ||
dfac2189 | 269 | acpi_register_lapic((processor->id << 8) | processor->eid,/* APIC ID */ |
3e9e57fa | 270 | processor->processor_id, /* ACPI ID */ |
dfac2189 | 271 | processor->lapic_flags & ACPI_MADT_ENABLED); |
ac049c1d JS |
272 | |
273 | return 0; | |
274 | } | |
275 | ||
1da177e4 | 276 | static int __init |
5f3b1a8b | 277 | acpi_parse_lapic_addr_ovr(struct acpi_subtable_header * header, |
4be44fcd | 278 | const unsigned long end) |
1da177e4 | 279 | { |
5f3b1a8b | 280 | struct acpi_madt_local_apic_override *lapic_addr_ovr = NULL; |
1da177e4 | 281 | |
5f3b1a8b | 282 | lapic_addr_ovr = (struct acpi_madt_local_apic_override *)header; |
1da177e4 LT |
283 | |
284 | if (BAD_MADT_ENTRY(lapic_addr_ovr, end)) | |
285 | return -EINVAL; | |
286 | ||
6de42119 BH |
287 | acpi_table_print_madt_entry(header); |
288 | ||
1da177e4 LT |
289 | acpi_lapic_addr = lapic_addr_ovr->address; |
290 | ||
291 | return 0; | |
292 | } | |
293 | ||
7237d3de SS |
294 | static int __init |
295 | acpi_parse_x2apic_nmi(struct acpi_subtable_header *header, | |
296 | const unsigned long end) | |
297 | { | |
298 | struct acpi_madt_local_x2apic_nmi *x2apic_nmi = NULL; | |
299 | ||
300 | x2apic_nmi = (struct acpi_madt_local_x2apic_nmi *)header; | |
301 | ||
302 | if (BAD_MADT_ENTRY(x2apic_nmi, end)) | |
303 | return -EINVAL; | |
304 | ||
305 | acpi_table_print_madt_entry(header); | |
306 | ||
307 | if (x2apic_nmi->lint != 1) | |
308 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
309 | ||
310 | return 0; | |
311 | } | |
312 | ||
1da177e4 | 313 | static int __init |
5f3b1a8b | 314 | acpi_parse_lapic_nmi(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 315 | { |
5f3b1a8b | 316 | struct acpi_madt_local_apic_nmi *lapic_nmi = NULL; |
1da177e4 | 317 | |
5f3b1a8b | 318 | lapic_nmi = (struct acpi_madt_local_apic_nmi *)header; |
1da177e4 LT |
319 | |
320 | if (BAD_MADT_ENTRY(lapic_nmi, end)) | |
321 | return -EINVAL; | |
322 | ||
323 | acpi_table_print_madt_entry(header); | |
324 | ||
325 | if (lapic_nmi->lint != 1) | |
326 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
327 | ||
328 | return 0; | |
329 | } | |
330 | ||
4be44fcd | 331 | #endif /*CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 332 | |
8466361a | 333 | #ifdef CONFIG_X86_IO_APIC |
8d7cdcb9 JL |
334 | #define MP_ISA_BUS 0 |
335 | ||
336 | static void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, | |
337 | u32 gsi) | |
338 | { | |
339 | int ioapic; | |
340 | int pin; | |
341 | struct mpc_intsrc mp_irq; | |
342 | ||
343 | /* | |
344 | * Convert 'gsi' to 'ioapic.pin'. | |
345 | */ | |
346 | ioapic = mp_find_ioapic(gsi); | |
347 | if (ioapic < 0) | |
348 | return; | |
349 | pin = mp_find_ioapic_pin(ioapic, gsi); | |
350 | ||
351 | /* | |
352 | * TBD: This check is for faulty timer entries, where the override | |
353 | * erroneously sets the trigger to level, resulting in a HUGE | |
354 | * increase of timer interrupts! | |
355 | */ | |
356 | if ((bus_irq == 0) && (trigger == 3)) | |
357 | trigger = 1; | |
358 | ||
359 | mp_irq.type = MP_INTSRC; | |
360 | mp_irq.irqtype = mp_INT; | |
361 | mp_irq.irqflag = (trigger << 2) | polarity; | |
362 | mp_irq.srcbus = MP_ISA_BUS; | |
363 | mp_irq.srcbusirq = bus_irq; /* IRQ */ | |
364 | mp_irq.dstapic = mpc_ioapic_id(ioapic); /* APIC ID */ | |
365 | mp_irq.dstirq = pin; /* INTIN# */ | |
366 | ||
367 | mp_save_irq(&mp_irq); | |
368 | ||
2e0ad0e2 JL |
369 | /* |
370 | * Reset default identity mapping if gsi is also an legacy IRQ, | |
371 | * otherwise there will be more than one entry with the same GSI | |
372 | * and acpi_isa_irq_to_gsi() may give wrong result. | |
373 | */ | |
95d76acc | 374 | if (gsi < nr_legacy_irqs() && isa_irq_to_gsi[gsi] == gsi) |
2e0ad0e2 | 375 | isa_irq_to_gsi[gsi] = ACPI_INVALID_GSI; |
8d7cdcb9 JL |
376 | isa_irq_to_gsi[bus_irq] = gsi; |
377 | } | |
378 | ||
379 | static int mp_config_acpi_gsi(struct device *dev, u32 gsi, int trigger, | |
380 | int polarity) | |
381 | { | |
382 | #ifdef CONFIG_X86_MPPARSE | |
383 | struct mpc_intsrc mp_irq; | |
384 | struct pci_dev *pdev; | |
385 | unsigned char number; | |
386 | unsigned int devfn; | |
387 | int ioapic; | |
388 | u8 pin; | |
389 | ||
390 | if (!acpi_ioapic) | |
391 | return 0; | |
392 | if (!dev || !dev_is_pci(dev)) | |
393 | return 0; | |
394 | ||
395 | pdev = to_pci_dev(dev); | |
396 | number = pdev->bus->number; | |
397 | devfn = pdev->devfn; | |
398 | pin = pdev->pin; | |
399 | /* print the entry should happen on mptable identically */ | |
400 | mp_irq.type = MP_INTSRC; | |
401 | mp_irq.irqtype = mp_INT; | |
402 | mp_irq.irqflag = (trigger == ACPI_EDGE_SENSITIVE ? 4 : 0x0c) | | |
403 | (polarity == ACPI_ACTIVE_HIGH ? 1 : 3); | |
404 | mp_irq.srcbus = number; | |
405 | mp_irq.srcbusirq = (((devfn >> 3) & 0x1f) << 2) | ((pin - 1) & 3); | |
406 | ioapic = mp_find_ioapic(gsi); | |
407 | mp_irq.dstapic = mpc_ioapic_id(ioapic); | |
408 | mp_irq.dstirq = mp_find_ioapic_pin(ioapic, gsi); | |
409 | ||
410 | mp_save_irq(&mp_irq); | |
411 | #endif | |
412 | return 0; | |
413 | } | |
414 | ||
1da177e4 | 415 | static int __init |
5f3b1a8b | 416 | acpi_parse_ioapic(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 417 | { |
5f3b1a8b | 418 | struct acpi_madt_io_apic *ioapic = NULL; |
ca7e28aa JL |
419 | struct ioapic_domain_cfg cfg = { |
420 | .type = IOAPIC_DOMAIN_DYNAMIC, | |
f7a0c786 | 421 | .ops = &mp_ioapic_irqdomain_ops, |
ca7e28aa | 422 | }; |
1da177e4 | 423 | |
5f3b1a8b | 424 | ioapic = (struct acpi_madt_io_apic *)header; |
1da177e4 LT |
425 | |
426 | if (BAD_MADT_ENTRY(ioapic, end)) | |
427 | return -EINVAL; | |
4be44fcd | 428 | |
1da177e4 LT |
429 | acpi_table_print_madt_entry(header); |
430 | ||
ca7e28aa JL |
431 | /* Statically assign IRQ numbers for IOAPICs hosting legacy IRQs */ |
432 | if (ioapic->global_irq_base < nr_legacy_irqs()) | |
433 | cfg.type = IOAPIC_DOMAIN_LEGACY; | |
434 | ||
435 | mp_register_ioapic(ioapic->id, ioapic->address, ioapic->global_irq_base, | |
436 | &cfg); | |
4be44fcd | 437 | |
1da177e4 LT |
438 | return 0; |
439 | } | |
440 | ||
441 | /* | |
442 | * Parse Interrupt Source Override for the ACPI SCI | |
443 | */ | |
9d2062b8 | 444 | static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger, u32 gsi) |
1da177e4 LT |
445 | { |
446 | if (trigger == 0) /* compatible SCI trigger is level */ | |
447 | trigger = 3; | |
448 | ||
449 | if (polarity == 0) /* compatible SCI polarity is low */ | |
450 | polarity = 3; | |
451 | ||
452 | /* Command-line over-ride via acpi_sci= */ | |
5f3b1a8b AS |
453 | if (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) |
454 | trigger = (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) >> 2; | |
1da177e4 | 455 | |
5f3b1a8b AS |
456 | if (acpi_sci_flags & ACPI_MADT_POLARITY_MASK) |
457 | polarity = acpi_sci_flags & ACPI_MADT_POLARITY_MASK; | |
1da177e4 | 458 | |
9d2062b8 | 459 | mp_override_legacy_irq(bus_irq, polarity, trigger, gsi); |
f1caa61d | 460 | acpi_penalize_sci_irq(bus_irq, trigger, polarity); |
1da177e4 LT |
461 | |
462 | /* | |
463 | * stash over-ride to indicate we've been here | |
cee324b1 | 464 | * and for later update of acpi_gbl_FADT |
1da177e4 | 465 | */ |
7bdd21ce | 466 | acpi_sci_override_gsi = gsi; |
1da177e4 LT |
467 | return; |
468 | } | |
469 | ||
470 | static int __init | |
5f3b1a8b | 471 | acpi_parse_int_src_ovr(struct acpi_subtable_header * header, |
4be44fcd | 472 | const unsigned long end) |
1da177e4 | 473 | { |
5f3b1a8b | 474 | struct acpi_madt_interrupt_override *intsrc = NULL; |
1da177e4 | 475 | |
5f3b1a8b | 476 | intsrc = (struct acpi_madt_interrupt_override *)header; |
1da177e4 LT |
477 | |
478 | if (BAD_MADT_ENTRY(intsrc, end)) | |
479 | return -EINVAL; | |
480 | ||
481 | acpi_table_print_madt_entry(header); | |
482 | ||
5f3b1a8b | 483 | if (intsrc->source_irq == acpi_gbl_FADT.sci_interrupt) { |
9d2062b8 | 484 | acpi_sci_ioapic_setup(intsrc->source_irq, |
5f3b1a8b | 485 | intsrc->inti_flags & ACPI_MADT_POLARITY_MASK, |
9d2062b8 EB |
486 | (intsrc->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2, |
487 | intsrc->global_irq); | |
1da177e4 LT |
488 | return 0; |
489 | } | |
490 | ||
ae10ccdc | 491 | if (intsrc->source_irq == 0) { |
7f74f8f2 | 492 | if (acpi_skip_timer_override) { |
ae10ccdc | 493 | printk(PREFIX "BIOS IRQ0 override ignored.\n"); |
7f74f8f2 AH |
494 | return 0; |
495 | } | |
ae10ccdc FT |
496 | |
497 | if ((intsrc->global_irq == 2) && acpi_fix_pin2_polarity | |
498 | && (intsrc->inti_flags & ACPI_MADT_POLARITY_MASK)) { | |
7f74f8f2 AH |
499 | intsrc->inti_flags &= ~ACPI_MADT_POLARITY_MASK; |
500 | printk(PREFIX "BIOS IRQ0 pin2 override: forcing polarity to high active.\n"); | |
501 | } | |
1da177e4 LT |
502 | } |
503 | ||
5f3b1a8b AS |
504 | mp_override_legacy_irq(intsrc->source_irq, |
505 | intsrc->inti_flags & ACPI_MADT_POLARITY_MASK, | |
506 | (intsrc->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2, | |
507 | intsrc->global_irq); | |
1da177e4 LT |
508 | |
509 | return 0; | |
510 | } | |
511 | ||
1da177e4 | 512 | static int __init |
5f3b1a8b | 513 | acpi_parse_nmi_src(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 514 | { |
5f3b1a8b | 515 | struct acpi_madt_nmi_source *nmi_src = NULL; |
1da177e4 | 516 | |
5f3b1a8b | 517 | nmi_src = (struct acpi_madt_nmi_source *)header; |
1da177e4 LT |
518 | |
519 | if (BAD_MADT_ENTRY(nmi_src, end)) | |
520 | return -EINVAL; | |
521 | ||
522 | acpi_table_print_madt_entry(header); | |
523 | ||
524 | /* TBD: Support nimsrc entries? */ | |
525 | ||
526 | return 0; | |
527 | } | |
528 | ||
4be44fcd | 529 | #endif /* CONFIG_X86_IO_APIC */ |
1da177e4 | 530 | |
1da177e4 LT |
531 | /* |
532 | * acpi_pic_sci_set_trigger() | |
5f3b1a8b | 533 | * |
1da177e4 LT |
534 | * use ELCR to set PIC-mode trigger type for SCI |
535 | * | |
536 | * If a PIC-mode SCI is not recognized or gives spurious IRQ7's | |
537 | * it may require Edge Trigger -- use "acpi_sci=edge" | |
538 | * | |
539 | * Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers | |
540 | * for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge. | |
27b46d76 SA |
541 | * ECLR1 is IRQs 0-7 (IRQ 0, 1, 2 must be 0) |
542 | * ECLR2 is IRQs 8-15 (IRQ 8, 13 must be 0) | |
1da177e4 LT |
543 | */ |
544 | ||
4be44fcd | 545 | void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger) |
1da177e4 LT |
546 | { |
547 | unsigned int mask = 1 << irq; | |
548 | unsigned int old, new; | |
549 | ||
550 | /* Real old ELCR mask */ | |
551 | old = inb(0x4d0) | (inb(0x4d1) << 8); | |
552 | ||
553 | /* | |
27b46d76 | 554 | * If we use ACPI to set PCI IRQs, then we should clear ELCR |
1da177e4 LT |
555 | * since we will set it correctly as we enable the PCI irq |
556 | * routing. | |
557 | */ | |
558 | new = acpi_noirq ? old : 0; | |
559 | ||
560 | /* | |
561 | * Update SCI information in the ELCR, it isn't in the PCI | |
562 | * routing tables.. | |
563 | */ | |
564 | switch (trigger) { | |
4be44fcd | 565 | case 1: /* Edge - clear */ |
1da177e4 LT |
566 | new &= ~mask; |
567 | break; | |
4be44fcd | 568 | case 3: /* Level - set */ |
1da177e4 LT |
569 | new |= mask; |
570 | break; | |
571 | } | |
572 | ||
573 | if (old == new) | |
574 | return; | |
575 | ||
576 | printk(PREFIX "setting ELCR to %04x (from %04x)\n", new, old); | |
577 | outb(new, 0x4d0); | |
578 | outb(new >> 8, 0x4d1); | |
579 | } | |
580 | ||
6b9fb708 | 581 | int acpi_gsi_to_irq(u32 gsi, unsigned int *irqp) |
1da177e4 | 582 | { |
b568b860 JL |
583 | int rc, irq, trigger, polarity; |
584 | ||
1ea76fba JL |
585 | if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { |
586 | *irqp = gsi; | |
587 | return 0; | |
588 | } | |
589 | ||
b568b860 JL |
590 | rc = acpi_get_override_irq(gsi, &trigger, &polarity); |
591 | if (rc == 0) { | |
592 | trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE; | |
593 | polarity = polarity ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH; | |
594 | irq = acpi_register_gsi(NULL, gsi, trigger, polarity); | |
595 | if (irq >= 0) { | |
596 | *irqp = irq; | |
597 | return 0; | |
598 | } | |
6b9fb708 | 599 | } |
b568b860 JL |
600 | |
601 | return -1; | |
1da177e4 | 602 | } |
81e88fdc | 603 | EXPORT_SYMBOL_GPL(acpi_gsi_to_irq); |
1da177e4 | 604 | |
2c2df841 EB |
605 | int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi) |
606 | { | |
95d76acc | 607 | if (isa_irq < nr_legacy_irqs() && |
2e0ad0e2 | 608 | isa_irq_to_gsi[isa_irq] != ACPI_INVALID_GSI) { |
032329ee JL |
609 | *gsi = isa_irq_to_gsi[isa_irq]; |
610 | return 0; | |
611 | } | |
612 | ||
613 | return -1; | |
2c2df841 EB |
614 | } |
615 | ||
2f065aef JF |
616 | static int acpi_register_gsi_pic(struct device *dev, u32 gsi, |
617 | int trigger, int polarity) | |
1da177e4 | 618 | { |
1da177e4 LT |
619 | #ifdef CONFIG_PCI |
620 | /* | |
621 | * Make sure all (legacy) PCI IRQs are set as level-triggered. | |
622 | */ | |
2f065aef | 623 | if (trigger == ACPI_LEVEL_SENSITIVE) |
ea6cd250 | 624 | elcr_set_level_irq(gsi); |
1da177e4 LT |
625 | #endif |
626 | ||
2f065aef JF |
627 | return gsi; |
628 | } | |
629 | ||
2f82c9dc | 630 | #ifdef CONFIG_X86_LOCAL_APIC |
2f065aef JF |
631 | static int acpi_register_gsi_ioapic(struct device *dev, u32 gsi, |
632 | int trigger, int polarity) | |
633 | { | |
84245af7 | 634 | int irq = gsi; |
1da177e4 | 635 | #ifdef CONFIG_X86_IO_APIC |
46176f39 JL |
636 | int node; |
637 | struct irq_alloc_info info; | |
638 | ||
639 | node = dev ? dev_to_node(dev) : NUMA_NO_NODE; | |
640 | trigger = trigger == ACPI_EDGE_SENSITIVE ? 0 : 1; | |
641 | polarity = polarity == ACPI_ACTIVE_HIGH ? 0 : 1; | |
642 | ioapic_set_alloc_attr(&info, node, trigger, polarity); | |
643 | ||
5da2fd26 | 644 | mutex_lock(&acpi_ioapic_lock); |
46176f39 JL |
645 | irq = mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC, &info); |
646 | /* Don't set up the ACPI SCI because it's already set up */ | |
647 | if (irq >= 0 && enable_update_mptable && | |
648 | acpi_gbl_FADT.sci_interrupt != gsi) | |
649 | mp_config_acpi_gsi(dev, gsi, trigger, polarity); | |
5da2fd26 | 650 | mutex_unlock(&acpi_ioapic_lock); |
1da177e4 | 651 | #endif |
2f065aef | 652 | |
84245af7 | 653 | return irq; |
2f065aef JF |
654 | } |
655 | ||
6a38fa0e JL |
656 | static void acpi_unregister_gsi_ioapic(u32 gsi) |
657 | { | |
658 | #ifdef CONFIG_X86_IO_APIC | |
46176f39 JL |
659 | int irq; |
660 | ||
5da2fd26 | 661 | mutex_lock(&acpi_ioapic_lock); |
46176f39 JL |
662 | irq = mp_map_gsi_to_irq(gsi, 0, NULL); |
663 | if (irq > 0) | |
664 | mp_unmap_irq(irq); | |
5da2fd26 | 665 | mutex_unlock(&acpi_ioapic_lock); |
6a38fa0e | 666 | #endif |
2f065aef | 667 | } |
2f82c9dc | 668 | #endif |
2f065aef | 669 | |
90f6881e JF |
670 | int (*__acpi_register_gsi)(struct device *dev, u32 gsi, |
671 | int trigger, int polarity) = acpi_register_gsi_pic; | |
6a38fa0e | 672 | void (*__acpi_unregister_gsi)(u32 gsi) = NULL; |
2f065aef | 673 | |
d6a77ead KRW |
674 | #ifdef CONFIG_ACPI_SLEEP |
675 | int (*acpi_suspend_lowlevel)(void) = x86_acpi_suspend_lowlevel; | |
676 | #else | |
677 | int (*acpi_suspend_lowlevel)(void); | |
678 | #endif | |
679 | ||
2f065aef JF |
680 | /* |
681 | * success: return IRQ number (>=0) | |
682 | * failure: return < 0 | |
683 | */ | |
684 | int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity) | |
685 | { | |
84245af7 | 686 | return __acpi_register_gsi(dev, gsi, trigger, polarity); |
1da177e4 | 687 | } |
35e92b78 AS |
688 | EXPORT_SYMBOL_GPL(acpi_register_gsi); |
689 | ||
690 | void acpi_unregister_gsi(u32 gsi) | |
691 | { | |
6a38fa0e JL |
692 | if (__acpi_unregister_gsi) |
693 | __acpi_unregister_gsi(gsi); | |
35e92b78 AS |
694 | } |
695 | EXPORT_SYMBOL_GPL(acpi_unregister_gsi); | |
4be44fcd | 696 | |
9f50c6ea | 697 | #ifdef CONFIG_X86_LOCAL_APIC |
e819813f | 698 | static void __init acpi_set_irq_model_ioapic(void) |
2f065aef JF |
699 | { |
700 | acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; | |
701 | __acpi_register_gsi = acpi_register_gsi_ioapic; | |
6a38fa0e | 702 | __acpi_unregister_gsi = acpi_unregister_gsi_ioapic; |
2f065aef JF |
703 | acpi_ioapic = 1; |
704 | } | |
9f50c6ea | 705 | #endif |
2f065aef | 706 | |
1da177e4 LT |
707 | /* |
708 | * ACPI based hotplug support for CPU | |
709 | */ | |
710 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | |
d8191fa4 | 711 | #include <acpi/processor.h> |
009cbadb | 712 | |
dc6db24d | 713 | int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid) |
0271f910 HL |
714 | { |
715 | #ifdef CONFIG_ACPI_NUMA | |
716 | int nid; | |
717 | ||
718 | nid = acpi_get_node(handle); | |
4370a3ef | 719 | if (nid != NUMA_NO_NODE) { |
896dc506 JL |
720 | set_apicid_to_node(physid, nid); |
721 | numa_set_node(cpu, nid); | |
722 | } | |
0271f910 | 723 | #endif |
dc6db24d | 724 | return 0; |
0271f910 | 725 | } |
009cbadb | 726 | |
febf2407 VK |
727 | int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, |
728 | int *pcpu) | |
1da177e4 | 729 | { |
73fea175 | 730 | int cpu; |
ee943a82 | 731 | |
febf2407 | 732 | cpu = acpi_register_lapic(physid, acpi_id, ACPI_MADT_ENABLED); |
7e1f85f9 JL |
733 | if (cpu < 0) { |
734 | pr_info(PREFIX "Unable to map lapic to logical cpu number\n"); | |
735 | return cpu; | |
73fea175 AR |
736 | } |
737 | ||
d8191fa4 | 738 | acpi_processor_set_pdc(handle); |
0271f910 | 739 | acpi_map_cpu2node(handle, cpu, physid); |
73fea175 AR |
740 | |
741 | *pcpu = cpu; | |
7e1f85f9 | 742 | return 0; |
1da177e4 | 743 | } |
d02dc27d | 744 | EXPORT_SYMBOL(acpi_map_cpu); |
1da177e4 | 745 | |
d02dc27d | 746 | int acpi_unmap_cpu(int cpu) |
1da177e4 | 747 | { |
c4c60524 WC |
748 | #ifdef CONFIG_ACPI_NUMA |
749 | set_apicid_to_node(per_cpu(x86_cpu_to_apicid, cpu), NUMA_NO_NODE); | |
750 | #endif | |
751 | ||
71fff5e6 | 752 | per_cpu(x86_cpu_to_apicid, cpu) = -1; |
9628937d | 753 | set_cpu_present(cpu, false); |
73fea175 AR |
754 | num_processors--; |
755 | ||
756 | return (0); | |
1da177e4 | 757 | } |
d02dc27d | 758 | EXPORT_SYMBOL(acpi_unmap_cpu); |
4be44fcd | 759 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ |
1da177e4 | 760 | |
4be44fcd | 761 | int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) |
b1bb248a | 762 | { |
7db298cb JL |
763 | int ret = -ENOSYS; |
764 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
765 | int ioapic_id; | |
766 | u64 addr; | |
767 | struct ioapic_domain_cfg cfg = { | |
768 | .type = IOAPIC_DOMAIN_DYNAMIC, | |
f7a0c786 | 769 | .ops = &mp_ioapic_irqdomain_ops, |
7db298cb JL |
770 | }; |
771 | ||
772 | ioapic_id = acpi_get_ioapic_id(handle, gsi_base, &addr); | |
773 | if (ioapic_id < 0) { | |
774 | unsigned long long uid; | |
775 | acpi_status status; | |
776 | ||
777 | status = acpi_evaluate_integer(handle, METHOD_NAME__UID, | |
778 | NULL, &uid); | |
779 | if (ACPI_FAILURE(status)) { | |
780 | acpi_handle_warn(handle, "failed to get IOAPIC ID.\n"); | |
781 | return -EINVAL; | |
782 | } | |
783 | ioapic_id = (int)uid; | |
784 | } | |
785 | ||
786 | mutex_lock(&acpi_ioapic_lock); | |
787 | ret = mp_register_ioapic(ioapic_id, phys_addr, gsi_base, &cfg); | |
788 | mutex_unlock(&acpi_ioapic_lock); | |
789 | #endif | |
790 | ||
791 | return ret; | |
b1bb248a KK |
792 | } |
793 | EXPORT_SYMBOL(acpi_register_ioapic); | |
794 | ||
4be44fcd | 795 | int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base) |
b1bb248a | 796 | { |
15516a3b JL |
797 | int ret = -ENOSYS; |
798 | ||
799 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
800 | mutex_lock(&acpi_ioapic_lock); | |
801 | ret = mp_unregister_ioapic(gsi_base); | |
802 | mutex_unlock(&acpi_ioapic_lock); | |
803 | #endif | |
4be44fcd | 804 | |
15516a3b JL |
805 | return ret; |
806 | } | |
b1bb248a KK |
807 | EXPORT_SYMBOL(acpi_unregister_ioapic); |
808 | ||
e89900c9 JL |
809 | /** |
810 | * acpi_ioapic_registered - Check whether IOAPIC assoicatied with @gsi_base | |
811 | * has been registered | |
812 | * @handle: ACPI handle of the IOAPIC deivce | |
813 | * @gsi_base: GSI base associated with the IOAPIC | |
814 | * | |
815 | * Assume caller holds some type of lock to serialize acpi_ioapic_registered() | |
816 | * with acpi_register_ioapic()/acpi_unregister_ioapic(). | |
817 | */ | |
818 | int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base) | |
819 | { | |
820 | int ret = 0; | |
821 | ||
822 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
823 | mutex_lock(&acpi_ioapic_lock); | |
824 | ret = mp_ioapic_registered(gsi_base); | |
825 | mutex_unlock(&acpi_ioapic_lock); | |
826 | #endif | |
827 | ||
828 | return ret; | |
829 | } | |
830 | ||
5f3b1a8b | 831 | static int __init acpi_parse_sbf(struct acpi_table_header *table) |
1da177e4 | 832 | { |
2fad9308 | 833 | struct acpi_table_boot *sb = (struct acpi_table_boot *)table; |
1da177e4 | 834 | |
5f3b1a8b | 835 | sbf_port = sb->cmos_index; /* Save CMOS port */ |
1da177e4 LT |
836 | |
837 | return 0; | |
838 | } | |
839 | ||
1da177e4 | 840 | #ifdef CONFIG_HPET_TIMER |
2d0c87c3 | 841 | #include <asm/hpet.h> |
1da177e4 | 842 | |
dd96dc32 | 843 | static struct resource *hpet_res __initdata; |
a1dfd851 | 844 | |
5f3b1a8b | 845 | static int __init acpi_parse_hpet(struct acpi_table_header *table) |
1da177e4 | 846 | { |
2fad9308 | 847 | struct acpi_table_hpet *hpet_tbl = (struct acpi_table_hpet *)table; |
1da177e4 | 848 | |
ad363f80 | 849 | if (hpet_tbl->address.space_id != ACPI_SPACE_MEM) { |
1da177e4 LT |
850 | printk(KERN_WARNING PREFIX "HPET timers must be located in " |
851 | "memory.\n"); | |
852 | return -1; | |
853 | } | |
f0f4c343 | 854 | |
2d0c87c3 | 855 | hpet_address = hpet_tbl->address.address; |
c8bc6f3c | 856 | hpet_blockid = hpet_tbl->sequence; |
f4df73c2 TG |
857 | |
858 | /* | |
859 | * Some broken BIOSes advertise HPET at 0x0. We really do not | |
860 | * want to allocate a resource there. | |
861 | */ | |
862 | if (!hpet_address) { | |
863 | printk(KERN_WARNING PREFIX | |
864 | "HPET id: %#x base: %#lx is invalid\n", | |
865 | hpet_tbl->id, hpet_address); | |
866 | return 0; | |
867 | } | |
868 | #ifdef CONFIG_X86_64 | |
869 | /* | |
870 | * Some even more broken BIOSes advertise HPET at | |
871 | * 0xfed0000000000000 instead of 0xfed00000. Fix it up and add | |
872 | * some noise: | |
873 | */ | |
874 | if (hpet_address == 0xfed0000000000000UL) { | |
875 | if (!hpet_force_user) { | |
876 | printk(KERN_WARNING PREFIX "HPET id: %#x " | |
877 | "base: 0xfed0000000000000 is bogus\n " | |
878 | "try hpet=force on the kernel command line to " | |
879 | "fix it up to 0xfed00000.\n", hpet_tbl->id); | |
880 | hpet_address = 0; | |
881 | return 0; | |
882 | } | |
883 | printk(KERN_WARNING PREFIX | |
884 | "HPET id: %#x base: 0xfed0000000000000 fixed up " | |
885 | "to 0xfed00000.\n", hpet_tbl->id); | |
886 | hpet_address >>= 32; | |
887 | } | |
888 | #endif | |
4be44fcd | 889 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", |
2d0c87c3 | 890 | hpet_tbl->id, hpet_address); |
1da177e4 | 891 | |
a1dfd851 AD |
892 | /* |
893 | * Allocate and initialize the HPET firmware resource for adding into | |
894 | * the resource tree during the lateinit timeframe. | |
895 | */ | |
896 | #define HPET_RESOURCE_NAME_SIZE 9 | |
897 | hpet_res = alloc_bootmem(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE); | |
898 | ||
a1dfd851 AD |
899 | hpet_res->name = (void *)&hpet_res[1]; |
900 | hpet_res->flags = IORESOURCE_MEM; | |
901 | snprintf((char *)hpet_res->name, HPET_RESOURCE_NAME_SIZE, "HPET %u", | |
902 | hpet_tbl->sequence); | |
903 | ||
904 | hpet_res->start = hpet_address; | |
905 | hpet_res->end = hpet_address + (1 * 1024) - 1; | |
906 | ||
1da177e4 LT |
907 | return 0; |
908 | } | |
a1dfd851 AD |
909 | |
910 | /* | |
911 | * hpet_insert_resource inserts the HPET resources used into the resource | |
912 | * tree. | |
913 | */ | |
914 | static __init int hpet_insert_resource(void) | |
915 | { | |
916 | if (!hpet_res) | |
917 | return 1; | |
918 | ||
919 | return insert_resource(&iomem_resource, hpet_res); | |
920 | } | |
921 | ||
922 | late_initcall(hpet_insert_resource); | |
923 | ||
1da177e4 LT |
924 | #else |
925 | #define acpi_parse_hpet NULL | |
926 | #endif | |
927 | ||
5f3b1a8b | 928 | static int __init acpi_parse_fadt(struct acpi_table_header *table) |
1da177e4 | 929 | { |
7a17b82c LR |
930 | if (!(acpi_gbl_FADT.boot_flags & ACPI_FADT_LEGACY_DEVICES)) { |
931 | pr_debug("ACPI: no legacy devices present\n"); | |
932 | x86_platform.legacy.devices.pnpbios = 0; | |
933 | } | |
934 | ||
93ffa9a4 DT |
935 | if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID && |
936 | !(acpi_gbl_FADT.boot_flags & ACPI_FADT_8042) && | |
937 | x86_platform.legacy.i8042 != X86_LEGACY_I8042_PLATFORM_ABSENT) { | |
938 | pr_debug("ACPI: i8042 controller is absent\n"); | |
939 | x86_platform.legacy.i8042 = X86_LEGACY_I8042_FIRMWARE_ABSENT; | |
940 | } | |
941 | ||
088a8ef8 LR |
942 | if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_CMOS_RTC) { |
943 | pr_debug("ACPI: not registering RTC platform device\n"); | |
944 | x86_platform.legacy.rtc = 0; | |
945 | } | |
90660ec3 | 946 | |
1da177e4 LT |
947 | #ifdef CONFIG_X86_PM_TIMER |
948 | /* detect the location of the ACPI PM Timer */ | |
5f3b1a8b | 949 | if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) { |
1da177e4 | 950 | /* FADT rev. 2 */ |
5f3b1a8b | 951 | if (acpi_gbl_FADT.xpm_timer_block.space_id != |
4be44fcd | 952 | ACPI_ADR_SPACE_SYSTEM_IO) |
1da177e4 LT |
953 | return 0; |
954 | ||
5f3b1a8b | 955 | pmtmr_ioport = acpi_gbl_FADT.xpm_timer_block.address; |
e6e87b4b DSL |
956 | /* |
957 | * "X" fields are optional extensions to the original V1.0 | |
958 | * fields, so we must selectively expand V1.0 fields if the | |
959 | * corresponding X field is zero. | |
960 | */ | |
961 | if (!pmtmr_ioport) | |
5f3b1a8b | 962 | pmtmr_ioport = acpi_gbl_FADT.pm_timer_block; |
1da177e4 LT |
963 | } else { |
964 | /* FADT rev. 1 */ | |
5f3b1a8b | 965 | pmtmr_ioport = acpi_gbl_FADT.pm_timer_block; |
1da177e4 LT |
966 | } |
967 | if (pmtmr_ioport) | |
4be44fcd LB |
968 | printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n", |
969 | pmtmr_ioport); | |
1da177e4 LT |
970 | #endif |
971 | return 0; | |
972 | } | |
973 | ||
1da177e4 LT |
974 | #ifdef CONFIG_X86_LOCAL_APIC |
975 | /* | |
976 | * Parse LAPIC entries in MADT | |
977 | * returns 0 on success, < 0 on error | |
978 | */ | |
31d2092e | 979 | |
cbf9bd60 YL |
980 | static int __init early_acpi_parse_madt_lapic_addr_ovr(void) |
981 | { | |
982 | int count; | |
983 | ||
93984fbd | 984 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
cbf9bd60 YL |
985 | return -ENODEV; |
986 | ||
987 | /* | |
988 | * Note that the LAPIC address is obtained from the MADT (32-bit value) | |
6a6256f9 | 989 | * and (optionally) overridden by a LAPIC_ADDR_OVR entry (64-bit value). |
cbf9bd60 YL |
990 | */ |
991 | ||
e819813f JL |
992 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE, |
993 | acpi_parse_lapic_addr_ovr, 0); | |
cbf9bd60 YL |
994 | if (count < 0) { |
995 | printk(KERN_ERR PREFIX | |
996 | "Error parsing LAPIC address override entry\n"); | |
997 | return count; | |
998 | } | |
999 | ||
c0104d38 | 1000 | register_lapic_address(acpi_lapic_addr); |
cbf9bd60 YL |
1001 | |
1002 | return count; | |
1003 | } | |
1004 | ||
4be44fcd | 1005 | static int __init acpi_parse_madt_lapic_entries(void) |
1da177e4 LT |
1006 | { |
1007 | int count; | |
7237d3de | 1008 | int x2count = 0; |
d81056b5 LA |
1009 | int ret; |
1010 | struct acpi_subtable_proc madt_proc[2]; | |
1da177e4 | 1011 | |
93984fbd | 1012 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
0fcd2709 AK |
1013 | return -ENODEV; |
1014 | ||
ac049c1d | 1015 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC, |
cb2ded37 | 1016 | acpi_parse_sapic, MAX_LOCAL_APIC); |
ac049c1d | 1017 | |
7237d3de | 1018 | if (!count) { |
d81056b5 LA |
1019 | memset(madt_proc, 0, sizeof(madt_proc)); |
1020 | madt_proc[0].id = ACPI_MADT_TYPE_LOCAL_APIC; | |
1021 | madt_proc[0].handler = acpi_parse_lapic; | |
1022 | madt_proc[1].id = ACPI_MADT_TYPE_LOCAL_X2APIC; | |
1023 | madt_proc[1].handler = acpi_parse_x2apic; | |
1024 | ret = acpi_table_parse_entries_array(ACPI_SIG_MADT, | |
1025 | sizeof(struct acpi_table_madt), | |
1026 | madt_proc, ARRAY_SIZE(madt_proc), MAX_LOCAL_APIC); | |
1027 | if (ret < 0) { | |
1028 | printk(KERN_ERR PREFIX | |
1029 | "Error parsing LAPIC/X2APIC entries\n"); | |
1030 | return ret; | |
1031 | } | |
1032 | ||
c12f29a5 AS |
1033 | count = madt_proc[0].count; |
1034 | x2count = madt_proc[1].count; | |
7237d3de SS |
1035 | } |
1036 | if (!count && !x2count) { | |
1da177e4 LT |
1037 | printk(KERN_ERR PREFIX "No LAPIC entries present\n"); |
1038 | /* TBD: Cleanup to allow fallback to MPS */ | |
1039 | return -ENODEV; | |
7237d3de | 1040 | } else if (count < 0 || x2count < 0) { |
1da177e4 LT |
1041 | printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n"); |
1042 | /* TBD: Cleanup to allow fallback to MPS */ | |
1043 | return count; | |
1044 | } | |
1045 | ||
e819813f JL |
1046 | x2count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_X2APIC_NMI, |
1047 | acpi_parse_x2apic_nmi, 0); | |
1048 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, | |
1049 | acpi_parse_lapic_nmi, 0); | |
7237d3de | 1050 | if (count < 0 || x2count < 0) { |
1da177e4 LT |
1051 | printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); |
1052 | /* TBD: Cleanup to allow fallback to MPS */ | |
1053 | return count; | |
1054 | } | |
1055 | return 0; | |
1056 | } | |
4be44fcd | 1057 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 1058 | |
8466361a | 1059 | #ifdef CONFIG_X86_IO_APIC |
a491cc90 | 1060 | static void __init mp_config_acpi_legacy_irqs(void) |
11113f84 | 1061 | { |
6df8809b | 1062 | int i; |
c2c21745 | 1063 | struct mpc_intsrc mp_irq; |
11113f84 | 1064 | |
bb8187d3 | 1065 | #ifdef CONFIG_EISA |
11113f84 AS |
1066 | /* |
1067 | * Fabricate the legacy ISA bus (bus #31). | |
1068 | */ | |
1069 | mp_bus_id_to_type[MP_ISA_BUS] = MP_BUS_ISA; | |
1070 | #endif | |
1071 | set_bit(MP_ISA_BUS, mp_bus_not_pci); | |
cfc1b9a6 | 1072 | pr_debug("Bus #%d is ISA\n", MP_ISA_BUS); |
11113f84 | 1073 | |
11113f84 AS |
1074 | /* |
1075 | * Use the default configuration for the IRQs 0-15. Unless | |
1076 | * overridden by (MADT) interrupt source override entries. | |
1077 | */ | |
95d76acc | 1078 | for (i = 0; i < nr_legacy_irqs(); i++) { |
0fd52670 EB |
1079 | int ioapic, pin; |
1080 | unsigned int dstapic; | |
11113f84 | 1081 | int idx; |
0fd52670 EB |
1082 | u32 gsi; |
1083 | ||
1084 | /* Locate the gsi that irq i maps to. */ | |
1085 | if (acpi_isa_irq_to_gsi(i, &gsi)) | |
1086 | continue; | |
1087 | ||
1088 | /* | |
1089 | * Locate the IOAPIC that manages the ISA IRQ. | |
1090 | */ | |
1091 | ioapic = mp_find_ioapic(gsi); | |
1092 | if (ioapic < 0) | |
1093 | continue; | |
1094 | pin = mp_find_ioapic_pin(ioapic, gsi); | |
d5371430 | 1095 | dstapic = mpc_ioapic_id(ioapic); |
11113f84 AS |
1096 | |
1097 | for (idx = 0; idx < mp_irq_entries; idx++) { | |
c2c21745 | 1098 | struct mpc_intsrc *irq = mp_irqs + idx; |
11113f84 AS |
1099 | |
1100 | /* Do we already have a mapping for this ISA IRQ? */ | |
c2c21745 | 1101 | if (irq->srcbus == MP_ISA_BUS && irq->srcbusirq == i) |
11113f84 AS |
1102 | break; |
1103 | ||
1104 | /* Do we already have a mapping for this IOAPIC pin */ | |
0fd52670 | 1105 | if (irq->dstapic == dstapic && irq->dstirq == pin) |
11113f84 AS |
1106 | break; |
1107 | } | |
1108 | ||
1109 | if (idx != mp_irq_entries) { | |
1110 | printk(KERN_DEBUG "ACPI: IRQ%d used by override.\n", i); | |
1111 | continue; /* IRQ already used */ | |
1112 | } | |
1113 | ||
c2c21745 JSR |
1114 | mp_irq.type = MP_INTSRC; |
1115 | mp_irq.irqflag = 0; /* Conforming */ | |
1116 | mp_irq.srcbus = MP_ISA_BUS; | |
1117 | mp_irq.dstapic = dstapic; | |
1118 | mp_irq.irqtype = mp_INT; | |
1119 | mp_irq.srcbusirq = i; /* Identity mapped */ | |
0fd52670 | 1120 | mp_irq.dstirq = pin; |
11113f84 | 1121 | |
2d8009ba | 1122 | mp_save_irq(&mp_irq); |
11113f84 AS |
1123 | } |
1124 | } | |
1125 | ||
1da177e4 LT |
1126 | /* |
1127 | * Parse IOAPIC related entries in MADT | |
1128 | * returns 0 on success, < 0 on error | |
1129 | */ | |
4be44fcd | 1130 | static int __init acpi_parse_madt_ioapic_entries(void) |
1da177e4 LT |
1131 | { |
1132 | int count; | |
1133 | ||
1134 | /* | |
1135 | * ACPI interpreter is required to complete interrupt setup, | |
1136 | * so if it is off, don't enumerate the io-apics with ACPI. | |
1137 | * If MPS is present, it will handle them, | |
1138 | * otherwise the system will stay in PIC mode | |
1139 | */ | |
6b2b171a | 1140 | if (acpi_disabled || acpi_noirq) |
1da177e4 | 1141 | return -ENODEV; |
1da177e4 | 1142 | |
93984fbd | 1143 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
d3b6a349 AK |
1144 | return -ENODEV; |
1145 | ||
1da177e4 | 1146 | /* |
4be44fcd | 1147 | * if "noapic" boot option, don't look for IO-APICs |
1da177e4 LT |
1148 | */ |
1149 | if (skip_ioapic_setup) { | |
1150 | printk(KERN_INFO PREFIX "Skipping IOAPIC probe " | |
4be44fcd | 1151 | "due to 'noapic' option.\n"); |
1da177e4 LT |
1152 | return -ENODEV; |
1153 | } | |
1154 | ||
e819813f JL |
1155 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_IO_APIC, acpi_parse_ioapic, |
1156 | MAX_IO_APICS); | |
1da177e4 LT |
1157 | if (!count) { |
1158 | printk(KERN_ERR PREFIX "No IOAPIC entries present\n"); | |
1159 | return -ENODEV; | |
4be44fcd | 1160 | } else if (count < 0) { |
1da177e4 LT |
1161 | printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n"); |
1162 | return count; | |
1163 | } | |
1164 | ||
e819813f JL |
1165 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_INTERRUPT_OVERRIDE, |
1166 | acpi_parse_int_src_ovr, nr_irqs); | |
1da177e4 | 1167 | if (count < 0) { |
4be44fcd LB |
1168 | printk(KERN_ERR PREFIX |
1169 | "Error parsing interrupt source overrides entry\n"); | |
1da177e4 LT |
1170 | /* TBD: Cleanup to allow fallback to MPS */ |
1171 | return count; | |
1172 | } | |
1173 | ||
1174 | /* | |
1175 | * If BIOS did not supply an INT_SRC_OVR for the SCI | |
1176 | * pretend we got one so we can set the SCI flags. | |
1177 | */ | |
1178 | if (!acpi_sci_override_gsi) | |
9d2062b8 EB |
1179 | acpi_sci_ioapic_setup(acpi_gbl_FADT.sci_interrupt, 0, 0, |
1180 | acpi_gbl_FADT.sci_interrupt); | |
1da177e4 | 1181 | |
af901ca1 | 1182 | /* Fill in identity legacy mappings where no override */ |
1da177e4 LT |
1183 | mp_config_acpi_legacy_irqs(); |
1184 | ||
e819813f JL |
1185 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_NMI_SOURCE, |
1186 | acpi_parse_nmi_src, nr_irqs); | |
1da177e4 LT |
1187 | if (count < 0) { |
1188 | printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n"); | |
1189 | /* TBD: Cleanup to allow fallback to MPS */ | |
1190 | return count; | |
1191 | } | |
1192 | ||
1193 | return 0; | |
1194 | } | |
1195 | #else | |
1196 | static inline int acpi_parse_madt_ioapic_entries(void) | |
1197 | { | |
1198 | return -1; | |
1199 | } | |
8466361a | 1200 | #endif /* !CONFIG_X86_IO_APIC */ |
1da177e4 | 1201 | |
cbf9bd60 YL |
1202 | static void __init early_acpi_process_madt(void) |
1203 | { | |
1204 | #ifdef CONFIG_X86_LOCAL_APIC | |
1205 | int error; | |
1206 | ||
1207 | if (!acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) { | |
1208 | ||
1209 | /* | |
1210 | * Parse MADT LAPIC entries | |
1211 | */ | |
1212 | error = early_acpi_parse_madt_lapic_addr_ovr(); | |
1213 | if (!error) { | |
1214 | acpi_lapic = 1; | |
1215 | smp_found_config = 1; | |
1216 | } | |
1217 | if (error == -EINVAL) { | |
1218 | /* | |
1219 | * Dell Precision Workstation 410, 610 come here. | |
1220 | */ | |
1221 | printk(KERN_ERR PREFIX | |
1222 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1223 | disable_acpi(); | |
1224 | } | |
1225 | } | |
1226 | #endif | |
1227 | } | |
1228 | ||
4be44fcd | 1229 | static void __init acpi_process_madt(void) |
1da177e4 LT |
1230 | { |
1231 | #ifdef CONFIG_X86_LOCAL_APIC | |
7f8f97c3 | 1232 | int error; |
1da177e4 | 1233 | |
7f8f97c3 | 1234 | if (!acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) { |
1da177e4 LT |
1235 | |
1236 | /* | |
1237 | * Parse MADT LAPIC entries | |
1238 | */ | |
1239 | error = acpi_parse_madt_lapic_entries(); | |
1240 | if (!error) { | |
1241 | acpi_lapic = 1; | |
1242 | ||
1243 | /* | |
1244 | * Parse MADT IO-APIC entries | |
1245 | */ | |
5da2fd26 | 1246 | mutex_lock(&acpi_ioapic_lock); |
1da177e4 | 1247 | error = acpi_parse_madt_ioapic_entries(); |
5da2fd26 | 1248 | mutex_unlock(&acpi_ioapic_lock); |
1da177e4 | 1249 | if (!error) { |
2f065aef | 1250 | acpi_set_irq_model_ioapic(); |
1da177e4 LT |
1251 | |
1252 | smp_found_config = 1; | |
1da177e4 LT |
1253 | } |
1254 | } | |
1255 | if (error == -EINVAL) { | |
1256 | /* | |
1257 | * Dell Precision Workstation 410, 610 come here. | |
1258 | */ | |
4be44fcd LB |
1259 | printk(KERN_ERR PREFIX |
1260 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1da177e4 LT |
1261 | disable_acpi(); |
1262 | } | |
7b37b5fd LB |
1263 | } else { |
1264 | /* | |
1265 | * ACPI found no MADT, and so ACPI wants UP PIC mode. | |
1266 | * In the event an MPS table was found, forget it. | |
1267 | * Boot with "acpi=off" to use MPS on such a system. | |
1268 | */ | |
1269 | if (smp_found_config) { | |
1270 | printk(KERN_WARNING PREFIX | |
1271 | "No APIC-table, disabling MPS\n"); | |
1272 | smp_found_config = 0; | |
1273 | } | |
1da177e4 | 1274 | } |
69b88afa YL |
1275 | |
1276 | /* | |
1277 | * ACPI supports both logical (e.g. Hyper-Threading) and physical | |
1278 | * processors, where MPS only supports physical. | |
1279 | */ | |
1280 | if (acpi_lapic && acpi_ioapic) | |
1281 | printk(KERN_INFO "Using ACPI (MADT) for SMP configuration " | |
1282 | "information\n"); | |
1283 | else if (acpi_lapic) | |
1284 | printk(KERN_INFO "Using ACPI for processor (LAPIC) " | |
1285 | "configuration information\n"); | |
1da177e4 LT |
1286 | #endif |
1287 | return; | |
1288 | } | |
1289 | ||
1855256c | 1290 | static int __init disable_acpi_irq(const struct dmi_system_id *d) |
aea00143 AP |
1291 | { |
1292 | if (!acpi_force) { | |
1293 | printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n", | |
1294 | d->ident); | |
1295 | acpi_noirq_set(); | |
1296 | } | |
1297 | return 0; | |
1298 | } | |
1299 | ||
1855256c | 1300 | static int __init disable_acpi_pci(const struct dmi_system_id *d) |
aea00143 AP |
1301 | { |
1302 | if (!acpi_force) { | |
1303 | printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n", | |
1304 | d->ident); | |
1305 | acpi_disable_pci(); | |
1306 | } | |
1307 | return 0; | |
1308 | } | |
aea00143 | 1309 | |
1855256c | 1310 | static int __init dmi_disable_acpi(const struct dmi_system_id *d) |
aea00143 AP |
1311 | { |
1312 | if (!acpi_force) { | |
4be44fcd | 1313 | printk(KERN_NOTICE "%s detected: acpi off\n", d->ident); |
aea00143 AP |
1314 | disable_acpi(); |
1315 | } else { | |
1316 | printk(KERN_NOTICE | |
1317 | "Warning: DMI blacklist says broken, but acpi forced\n"); | |
1318 | } | |
1319 | return 0; | |
1320 | } | |
1321 | ||
e2079c43 | 1322 | /* |
ae10ccdc | 1323 | * Force ignoring BIOS IRQ0 override |
e2079c43 RW |
1324 | */ |
1325 | static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d) | |
1326 | { | |
8d89adf4 | 1327 | if (!acpi_skip_timer_override) { |
ae10ccdc | 1328 | pr_notice("%s detected: Ignoring BIOS IRQ0 override\n", |
8d89adf4 IM |
1329 | d->ident); |
1330 | acpi_skip_timer_override = 1; | |
1331 | } | |
e2079c43 RW |
1332 | return 0; |
1333 | } | |
1334 | ||
7486341a LA |
1335 | /* |
1336 | * ACPI offers an alternative platform interface model that removes | |
1337 | * ACPI hardware requirements for platforms that do not implement | |
1338 | * the PC Architecture. | |
1339 | * | |
1340 | * We initialize the Hardware-reduced ACPI model here: | |
1341 | */ | |
1342 | static void __init acpi_reduced_hw_init(void) | |
1343 | { | |
1344 | if (acpi_gbl_reduced_hardware) { | |
1345 | /* | |
1346 | * Override x86_init functions and bypass legacy pic | |
1347 | * in Hardware-reduced ACPI mode | |
1348 | */ | |
1349 | x86_init.timers.timer_init = x86_init_noop; | |
1350 | x86_init.irqs.pre_vector_init = x86_init_noop; | |
1351 | legacy_pic = &null_legacy_pic; | |
1352 | } | |
1353 | } | |
1354 | ||
aea00143 AP |
1355 | /* |
1356 | * If your system is blacklisted here, but you find that acpi=force | |
5b4c0b6f | 1357 | * works for you, please contact linux-acpi@vger.kernel.org |
aea00143 AP |
1358 | */ |
1359 | static struct dmi_system_id __initdata acpi_dmi_table[] = { | |
1360 | /* | |
1361 | * Boxes that need ACPI disabled | |
1362 | */ | |
1363 | { | |
4be44fcd LB |
1364 | .callback = dmi_disable_acpi, |
1365 | .ident = "IBM Thinkpad", | |
1366 | .matches = { | |
1367 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1368 | DMI_MATCH(DMI_BOARD_NAME, "2629H1G"), | |
1369 | }, | |
1370 | }, | |
aea00143 | 1371 | |
aea00143 AP |
1372 | /* |
1373 | * Boxes that need ACPI PCI IRQ routing disabled | |
1374 | */ | |
1375 | { | |
4be44fcd LB |
1376 | .callback = disable_acpi_irq, |
1377 | .ident = "ASUS A7V", | |
1378 | .matches = { | |
1379 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"), | |
1380 | DMI_MATCH(DMI_BOARD_NAME, "<A7V>"), | |
1381 | /* newer BIOS, Revision 1011, does work */ | |
1382 | DMI_MATCH(DMI_BIOS_VERSION, | |
1383 | "ASUS A7V ACPI BIOS Revision 1007"), | |
1384 | }, | |
1385 | }, | |
74586fca LB |
1386 | { |
1387 | /* | |
1388 | * Latest BIOS for IBM 600E (1.16) has bad pcinum | |
1389 | * for LPC bridge, which is needed for the PCI | |
1390 | * interrupt links to work. DSDT fix is in bug 5966. | |
1391 | * 2645, 2646 model numbers are shared with 600/600E/600X | |
1392 | */ | |
1393 | .callback = disable_acpi_irq, | |
1394 | .ident = "IBM Thinkpad 600 Series 2645", | |
1395 | .matches = { | |
1396 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1397 | DMI_MATCH(DMI_BOARD_NAME, "2645"), | |
1398 | }, | |
1399 | }, | |
1400 | { | |
1401 | .callback = disable_acpi_irq, | |
1402 | .ident = "IBM Thinkpad 600 Series 2646", | |
1403 | .matches = { | |
1404 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1405 | DMI_MATCH(DMI_BOARD_NAME, "2646"), | |
1406 | }, | |
1407 | }, | |
aea00143 AP |
1408 | /* |
1409 | * Boxes that need ACPI PCI IRQ routing and PCI scan disabled | |
1410 | */ | |
4be44fcd LB |
1411 | { /* _BBN 0 bug */ |
1412 | .callback = disable_acpi_pci, | |
1413 | .ident = "ASUS PR-DLS", | |
1414 | .matches = { | |
1415 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1416 | DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"), | |
1417 | DMI_MATCH(DMI_BIOS_VERSION, | |
1418 | "ASUS PR-DLS ACPI BIOS Revision 1010"), | |
1419 | DMI_MATCH(DMI_BIOS_DATE, "03/21/2003") | |
1420 | }, | |
1421 | }, | |
aea00143 | 1422 | { |
4be44fcd LB |
1423 | .callback = disable_acpi_pci, |
1424 | .ident = "Acer TravelMate 36x Laptop", | |
1425 | .matches = { | |
1426 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
1427 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), | |
1428 | }, | |
1429 | }, | |
35af2821 AH |
1430 | {} |
1431 | }; | |
1432 | ||
1433 | /* second table for DMI checks that should run after early-quirks */ | |
1434 | static struct dmi_system_id __initdata acpi_dmi_table_late[] = { | |
e2079c43 RW |
1435 | /* |
1436 | * HP laptops which use a DSDT reporting as HP/SB400/10000, | |
1437 | * which includes some code which overrides all temperature | |
1438 | * trip points to 16C if the INTIN2 input of the I/O APIC | |
1439 | * is enabled. This input is incorrectly designated the | |
1440 | * ISA IRQ 0 via an interrupt source override even though | |
1441 | * it is wired to the output of the master 8259A and INTIN0 | |
ae10ccdc | 1442 | * is not connected at all. Force ignoring BIOS IRQ0 |
e2079c43 RW |
1443 | * override in that cases. |
1444 | */ | |
e84956f9 RW |
1445 | { |
1446 | .callback = dmi_ignore_irq0_timer_override, | |
1447 | .ident = "HP nx6115 laptop", | |
1448 | .matches = { | |
1449 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1450 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6115"), | |
1451 | }, | |
1452 | }, | |
e2079c43 RW |
1453 | { |
1454 | .callback = dmi_ignore_irq0_timer_override, | |
1455 | .ident = "HP NX6125 laptop", | |
1456 | .matches = { | |
1457 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1458 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6125"), | |
1459 | }, | |
1460 | }, | |
1461 | { | |
1462 | .callback = dmi_ignore_irq0_timer_override, | |
1463 | .ident = "HP NX6325 laptop", | |
1464 | .matches = { | |
1465 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1466 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6325"), | |
1467 | }, | |
1468 | }, | |
e84956f9 RW |
1469 | { |
1470 | .callback = dmi_ignore_irq0_timer_override, | |
1471 | .ident = "HP 6715b laptop", | |
1472 | .matches = { | |
1473 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1474 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"), | |
1475 | }, | |
1476 | }, | |
f6b54f08 FT |
1477 | { |
1478 | .callback = dmi_ignore_irq0_timer_override, | |
1479 | .ident = "FUJITSU SIEMENS", | |
1480 | .matches = { | |
1481 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), | |
1482 | DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"), | |
1483 | }, | |
1484 | }, | |
4be44fcd | 1485 | {} |
aea00143 AP |
1486 | }; |
1487 | ||
1da177e4 LT |
1488 | /* |
1489 | * acpi_boot_table_init() and acpi_boot_init() | |
1490 | * called from setup_arch(), always. | |
1491 | * 1. checksums all tables | |
1492 | * 2. enumerates lapics | |
1493 | * 3. enumerates io-apics | |
1494 | * | |
1495 | * acpi_table_init() is separate to allow reading SRAT without | |
1496 | * other side effects. | |
1497 | * | |
1498 | * side effects of acpi_boot_init: | |
1499 | * acpi_lapic = 1 if LAPIC found | |
1500 | * acpi_ioapic = 1 if IOAPIC found | |
1501 | * if (acpi_lapic && acpi_ioapic) smp_found_config = 1; | |
1502 | * if acpi_blacklisted() acpi_disabled = 1; | |
1503 | * acpi_irq_model=... | |
1504 | * ... | |
1da177e4 LT |
1505 | */ |
1506 | ||
8558e394 | 1507 | void __init acpi_boot_table_init(void) |
1da177e4 | 1508 | { |
aea00143 | 1509 | dmi_check_system(acpi_dmi_table); |
aea00143 | 1510 | |
1da177e4 LT |
1511 | /* |
1512 | * If acpi_disabled, bail out | |
1da177e4 | 1513 | */ |
68ca4069 | 1514 | if (acpi_disabled) |
0f61aaa4 | 1515 | return; |
1da177e4 | 1516 | |
5f3b1a8b | 1517 | /* |
1da177e4 LT |
1518 | * Initialize the ACPI boot-time table parser. |
1519 | */ | |
8558e394 | 1520 | if (acpi_table_init()) { |
1da177e4 | 1521 | disable_acpi(); |
8558e394 | 1522 | return; |
1da177e4 | 1523 | } |
1da177e4 | 1524 | |
5f3b1a8b | 1525 | acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf); |
1da177e4 LT |
1526 | |
1527 | /* | |
1528 | * blacklist may disable ACPI entirely | |
1529 | */ | |
8558e394 | 1530 | if (acpi_blacklisted()) { |
1da177e4 LT |
1531 | if (acpi_force) { |
1532 | printk(KERN_WARNING PREFIX "acpi=force override\n"); | |
1533 | } else { | |
1534 | printk(KERN_WARNING PREFIX "Disabling ACPI support\n"); | |
1535 | disable_acpi(); | |
8558e394 | 1536 | return; |
1da177e4 LT |
1537 | } |
1538 | } | |
cbf9bd60 YL |
1539 | } |
1540 | ||
1541 | int __init early_acpi_boot_init(void) | |
1542 | { | |
1543 | /* | |
1544 | * If acpi_disabled, bail out | |
cbf9bd60 | 1545 | */ |
68ca4069 | 1546 | if (acpi_disabled) |
cbf9bd60 YL |
1547 | return 1; |
1548 | ||
1549 | /* | |
1550 | * Process the Multiple APIC Description Table (MADT), if present | |
1551 | */ | |
1552 | early_acpi_process_madt(); | |
1da177e4 | 1553 | |
7486341a LA |
1554 | /* |
1555 | * Hardware-reduced ACPI mode initialization: | |
1556 | */ | |
1557 | acpi_reduced_hw_init(); | |
1558 | ||
1da177e4 LT |
1559 | return 0; |
1560 | } | |
1561 | ||
7b0a9114 DY |
1562 | static int __init acpi_parse_bgrt(struct acpi_table_header *table) |
1563 | { | |
1564 | efi_bgrt_init(table); | |
1565 | return 0; | |
1566 | } | |
1567 | ||
1da177e4 LT |
1568 | int __init acpi_boot_init(void) |
1569 | { | |
35af2821 AH |
1570 | /* those are executed after early-quirks are executed */ |
1571 | dmi_check_system(acpi_dmi_table_late); | |
1572 | ||
1da177e4 LT |
1573 | /* |
1574 | * If acpi_disabled, bail out | |
1da177e4 | 1575 | */ |
68ca4069 | 1576 | if (acpi_disabled) |
4be44fcd | 1577 | return 1; |
1da177e4 | 1578 | |
5f3b1a8b | 1579 | acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf); |
1da177e4 LT |
1580 | |
1581 | /* | |
1582 | * set sci_int and PM timer address | |
1583 | */ | |
ceb6c468 | 1584 | acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt); |
1da177e4 LT |
1585 | |
1586 | /* | |
1587 | * Process the Multiple APIC Description Table (MADT), if present | |
1588 | */ | |
1589 | acpi_process_madt(); | |
1590 | ||
5f3b1a8b | 1591 | acpi_table_parse(ACPI_SIG_HPET, acpi_parse_hpet); |
7b0a9114 DY |
1592 | if (IS_ENABLED(CONFIG_ACPI_BGRT)) |
1593 | acpi_table_parse(ACPI_SIG_BGRT, acpi_parse_bgrt); | |
1da177e4 | 1594 | |
b72d0db9 TG |
1595 | if (!acpi_noirq) |
1596 | x86_init.pci.init = pci_acpi_init; | |
1597 | ||
1da177e4 LT |
1598 | return 0; |
1599 | } | |
1a3f239d RR |
1600 | |
1601 | static int __init parse_acpi(char *arg) | |
1602 | { | |
1603 | if (!arg) | |
1604 | return -EINVAL; | |
1605 | ||
1606 | /* "acpi=off" disables both ACPI table parsing and interpreter */ | |
1607 | if (strcmp(arg, "off") == 0) { | |
1608 | disable_acpi(); | |
1609 | } | |
1610 | /* acpi=force to over-ride black-list */ | |
1611 | else if (strcmp(arg, "force") == 0) { | |
1612 | acpi_force = 1; | |
1a3f239d RR |
1613 | acpi_disabled = 0; |
1614 | } | |
1615 | /* acpi=strict disables out-of-spec workarounds */ | |
1616 | else if (strcmp(arg, "strict") == 0) { | |
1617 | acpi_strict = 1; | |
1618 | } | |
237889bf ZY |
1619 | /* acpi=rsdt use RSDT instead of XSDT */ |
1620 | else if (strcmp(arg, "rsdt") == 0) { | |
fab46105 | 1621 | acpi_gbl_do_not_use_xsdt = TRUE; |
237889bf | 1622 | } |
1a3f239d RR |
1623 | /* "acpi=noirq" disables ACPI interrupt routing */ |
1624 | else if (strcmp(arg, "noirq") == 0) { | |
1625 | acpi_noirq_set(); | |
aa2110cb LM |
1626 | } |
1627 | /* "acpi=copy_dsdt" copys DSDT */ | |
1628 | else if (strcmp(arg, "copy_dsdt") == 0) { | |
1629 | acpi_gbl_copy_dsdt_locally = 1; | |
9ad95879 NR |
1630 | } |
1631 | /* "acpi=nocmcff" disables FF mode for corrected errors */ | |
1632 | else if (strcmp(arg, "nocmcff") == 0) { | |
1633 | acpi_disable_cmcff = 1; | |
1a3f239d RR |
1634 | } else { |
1635 | /* Core will printk when we return error. */ | |
1636 | return -EINVAL; | |
1637 | } | |
1638 | return 0; | |
1639 | } | |
1640 | early_param("acpi", parse_acpi); | |
1641 | ||
1642 | /* FIXME: Using pci= for an ACPI parameter is a travesty. */ | |
1643 | static int __init parse_pci(char *arg) | |
1644 | { | |
1645 | if (arg && strcmp(arg, "noacpi") == 0) | |
1646 | acpi_disable_pci(); | |
1647 | return 0; | |
1648 | } | |
1649 | early_param("pci", parse_pci); | |
1650 | ||
3c999f14 YL |
1651 | int __init acpi_mps_check(void) |
1652 | { | |
1653 | #if defined(CONFIG_X86_LOCAL_APIC) && !defined(CONFIG_X86_MPPARSE) | |
1654 | /* mptable code is not built-in*/ | |
1655 | if (acpi_disabled || acpi_noirq) { | |
1656 | printk(KERN_WARNING "MPS support code is not built-in.\n" | |
1657 | "Using acpi=off or acpi=noirq or pci=noacpi " | |
1658 | "may have problem\n"); | |
1659 | return 1; | |
1660 | } | |
1661 | #endif | |
1662 | return 0; | |
1663 | } | |
1664 | ||
1a3f239d RR |
1665 | #ifdef CONFIG_X86_IO_APIC |
1666 | static int __init parse_acpi_skip_timer_override(char *arg) | |
1667 | { | |
1668 | acpi_skip_timer_override = 1; | |
1669 | return 0; | |
1670 | } | |
1671 | early_param("acpi_skip_timer_override", parse_acpi_skip_timer_override); | |
fa18f477 AK |
1672 | |
1673 | static int __init parse_acpi_use_timer_override(char *arg) | |
1674 | { | |
1675 | acpi_use_timer_override = 1; | |
1676 | return 0; | |
1677 | } | |
1678 | early_param("acpi_use_timer_override", parse_acpi_use_timer_override); | |
1a3f239d RR |
1679 | #endif /* CONFIG_X86_IO_APIC */ |
1680 | ||
1681 | static int __init setup_acpi_sci(char *s) | |
1682 | { | |
1683 | if (!s) | |
1684 | return -EINVAL; | |
1685 | if (!strcmp(s, "edge")) | |
5f3b1a8b AS |
1686 | acpi_sci_flags = ACPI_MADT_TRIGGER_EDGE | |
1687 | (acpi_sci_flags & ~ACPI_MADT_TRIGGER_MASK); | |
1a3f239d | 1688 | else if (!strcmp(s, "level")) |
5f3b1a8b AS |
1689 | acpi_sci_flags = ACPI_MADT_TRIGGER_LEVEL | |
1690 | (acpi_sci_flags & ~ACPI_MADT_TRIGGER_MASK); | |
1a3f239d | 1691 | else if (!strcmp(s, "high")) |
5f3b1a8b AS |
1692 | acpi_sci_flags = ACPI_MADT_POLARITY_ACTIVE_HIGH | |
1693 | (acpi_sci_flags & ~ACPI_MADT_POLARITY_MASK); | |
1a3f239d | 1694 | else if (!strcmp(s, "low")) |
5f3b1a8b AS |
1695 | acpi_sci_flags = ACPI_MADT_POLARITY_ACTIVE_LOW | |
1696 | (acpi_sci_flags & ~ACPI_MADT_POLARITY_MASK); | |
1a3f239d RR |
1697 | else |
1698 | return -EINVAL; | |
1699 | return 0; | |
1700 | } | |
1701 | early_param("acpi_sci", setup_acpi_sci); | |
d0a9081b AM |
1702 | |
1703 | int __acpi_acquire_global_lock(unsigned int *lock) | |
1704 | { | |
1705 | unsigned int old, new, val; | |
1706 | do { | |
1707 | old = *lock; | |
1708 | new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1)); | |
1709 | val = cmpxchg(lock, old, new); | |
1710 | } while (unlikely (val != old)); | |
1711 | return (new < 3) ? -1 : 0; | |
1712 | } | |
1713 | ||
1714 | int __acpi_release_global_lock(unsigned int *lock) | |
1715 | { | |
1716 | unsigned int old, new, val; | |
1717 | do { | |
1718 | old = *lock; | |
1719 | new = old & ~0x3; | |
1720 | val = cmpxchg(lock, old, new); | |
1721 | } while (unlikely (val != old)); | |
1722 | return old & 0x1; | |
1723 | } | |
8e30524d TR |
1724 | |
1725 | void __init arch_reserve_mem_area(acpi_physical_address addr, size_t size) | |
1726 | { | |
1727 | e820_add_region(addr, size, E820_ACPI); | |
1728 | update_e820(); | |
1729 | } |