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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 | 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 | 35 | #include <linux/bootmem.h> |
36 | #include <linux/ioport.h> | |
a31f8205 | 37 | #include <linux/pci.h> |
7b0a9114 | 38 | #include <linux/efi-bgrt.h> |
0231d000 | 39 | #include <linux/serial_core.h> |
1da177e4 | 40 | |
5520b7e7 | 41 | #include <asm/e820/api.h> |
f7a0c786 | 42 | #include <asm/irqdomain.h> |
b72d0db9 | 43 | #include <asm/pci_x86.h> |
1da177e4 LT |
44 | #include <asm/pgtable.h> |
45 | #include <asm/io_apic.h> | |
46 | #include <asm/apic.h> | |
47 | #include <asm/io.h> | |
1da177e4 | 48 | #include <asm/mpspec.h> |
dfac2189 | 49 | #include <asm/smp.h> |
95d76acc | 50 | #include <asm/i8259.h> |
1da177e4 | 51 | |
d6a77ead | 52 | #include "sleep.h" /* To include x86_acpi_suspend_lowlevel */ |
e8924acb | 53 | static int __initdata acpi_force = 0; |
c636f753 | 54 | int acpi_disabled; |
df3bb57d AK |
55 | EXPORT_SYMBOL(acpi_disabled); |
56 | ||
1da177e4 | 57 | #ifdef CONFIG_X86_64 |
1dcdd3d1 | 58 | # include <asm/proto.h> |
4be44fcd | 59 | #endif /* X86 */ |
1da177e4 | 60 | |
1da177e4 LT |
61 | #define PREFIX "ACPI: " |
62 | ||
90d53909 | 63 | int acpi_noirq; /* skip ACPI IRQ initialization */ |
6e4be1ff YL |
64 | int acpi_pci_disabled; /* skip ACPI PCI scan and IRQ initialization */ |
65 | EXPORT_SYMBOL(acpi_pci_disabled); | |
1da177e4 LT |
66 | |
67 | int acpi_lapic; | |
68 | int acpi_ioapic; | |
69 | int acpi_strict; | |
9ad95879 | 70 | int acpi_disable_cmcff; |
1da177e4 | 71 | |
4565c4f6 | 72 | /* ACPI SCI override configuration */ |
5f3b1a8b | 73 | u8 acpi_sci_flags __initdata; |
4565c4f6 | 74 | u32 acpi_sci_override_gsi __initdata = INVALID_ACPI_IRQ; |
1da177e4 | 75 | int acpi_skip_timer_override __initdata; |
fa18f477 | 76 | int acpi_use_timer_override __initdata; |
7f74f8f2 | 77 | int acpi_fix_pin2_polarity __initdata; |
1da177e4 LT |
78 | |
79 | #ifdef CONFIG_X86_LOCAL_APIC | |
80 | static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; | |
81 | #endif | |
82 | ||
d2d9c4a3 | 83 | #ifdef CONFIG_X86_IO_APIC |
5da2fd26 JL |
84 | /* |
85 | * Locks related to IOAPIC hotplug | |
86 | * Hotplug side: | |
87 | * ->device_hotplug_lock | |
88 | * ->acpi_ioapic_lock | |
89 | * ->ioapic_lock | |
90 | * Interrupt mapping side: | |
91 | * ->acpi_ioapic_lock | |
92 | * ->ioapic_mutex | |
93 | * ->ioapic_lock | |
94 | */ | |
95 | static DEFINE_MUTEX(acpi_ioapic_lock); | |
d2d9c4a3 | 96 | #endif |
5da2fd26 | 97 | |
1da177e4 LT |
98 | /* -------------------------------------------------------------------------- |
99 | Boot-time Configuration | |
100 | -------------------------------------------------------------------------- */ | |
101 | ||
102 | /* | |
103 | * The default interrupt routing model is PIC (8259). This gets | |
27b46d76 | 104 | * overridden if IOAPICs are enumerated (below). |
1da177e4 | 105 | */ |
4be44fcd | 106 | enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC; |
1da177e4 | 107 | |
1da177e4 | 108 | |
988856ee EB |
109 | /* |
110 | * ISA irqs by default are the first 16 gsis but can be | |
111 | * any gsi as specified by an interrupt source override. | |
112 | */ | |
113 | static u32 isa_irq_to_gsi[NR_IRQS_LEGACY] __read_mostly = { | |
114 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 | |
115 | }; | |
116 | ||
1da177e4 | 117 | /* |
f7750a79 | 118 | * This is just a simple wrapper around early_memremap(), |
45f1330a | 119 | * with sanity checks for phys == 0 and size == 0. |
1da177e4 | 120 | */ |
6c9a58e8 | 121 | void __init __iomem *__acpi_map_table(unsigned long phys, unsigned long size) |
1da177e4 | 122 | { |
1da177e4 | 123 | |
f34fa82b YL |
124 | if (!phys || !size) |
125 | return NULL; | |
126 | ||
f7750a79 | 127 | return early_memremap(phys, size); |
7d97277b | 128 | } |
45f1330a | 129 | |
6c9a58e8 | 130 | void __init __acpi_unmap_table(void __iomem *map, unsigned long size) |
7d97277b YL |
131 | { |
132 | if (!map || !size) | |
133 | return; | |
1da177e4 | 134 | |
f7750a79 | 135 | early_memunmap(map, size); |
1da177e4 | 136 | } |
1da177e4 | 137 | |
1da177e4 | 138 | #ifdef CONFIG_X86_LOCAL_APIC |
15a58ed1 | 139 | static int __init acpi_parse_madt(struct acpi_table_header *table) |
1da177e4 | 140 | { |
4be44fcd | 141 | struct acpi_table_madt *madt = NULL; |
1da177e4 | 142 | |
93984fbd | 143 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
1da177e4 LT |
144 | return -EINVAL; |
145 | ||
15a58ed1 | 146 | madt = (struct acpi_table_madt *)table; |
1da177e4 LT |
147 | if (!madt) { |
148 | printk(KERN_WARNING PREFIX "Unable to map MADT\n"); | |
149 | return -ENODEV; | |
150 | } | |
151 | ||
ad363f80 AS |
152 | if (madt->address) { |
153 | acpi_lapic_addr = (u64) madt->address; | |
1da177e4 LT |
154 | |
155 | printk(KERN_DEBUG PREFIX "Local APIC address 0x%08x\n", | |
ad363f80 | 156 | madt->address); |
1da177e4 LT |
157 | } |
158 | ||
306db03b IM |
159 | default_acpi_madt_oem_check(madt->header.oem_id, |
160 | madt->header.oem_table_id); | |
4be44fcd | 161 | |
1da177e4 LT |
162 | return 0; |
163 | } | |
164 | ||
7e1f85f9 JL |
165 | /** |
166 | * acpi_register_lapic - register a local apic and generates a logic cpu number | |
167 | * @id: local apic id to register | |
3e9e57fa | 168 | * @acpiid: ACPI id to register |
7e1f85f9 JL |
169 | * @enabled: this cpu is enabled or not |
170 | * | |
171 | * Returns the logic cpu number which maps to the local apic | |
172 | */ | |
3e9e57fa | 173 | static int acpi_register_lapic(int id, u32 acpiid, u8 enabled) |
dfac2189 | 174 | { |
fb3bbd6a | 175 | unsigned int ver = 0; |
3e9e57fa | 176 | int cpu; |
fb3bbd6a | 177 | |
82982d72 | 178 | if (id >= MAX_LOCAL_APIC) { |
d3bd0588 | 179 | printk(KERN_INFO PREFIX "skipped apicid that is too big\n"); |
7e1f85f9 | 180 | return -EINVAL; |
d3bd0588 YL |
181 | } |
182 | ||
2b85b3d2 | 183 | if (!enabled) { |
506a66f3 | 184 | ++disabled_cpus; |
2b85b3d2 DL |
185 | return -EINVAL; |
186 | } | |
187 | ||
fb3bbd6a | 188 | if (boot_cpu_physical_apicid != -1U) |
cff9ab2b | 189 | ver = boot_cpu_apic_version; |
fb3bbd6a | 190 | |
2b85b3d2 | 191 | cpu = generic_processor_info(id, ver); |
3e9e57fa VK |
192 | if (cpu >= 0) |
193 | early_per_cpu(x86_cpu_to_acpiid, cpu) = acpiid; | |
194 | ||
195 | return cpu; | |
dfac2189 AS |
196 | } |
197 | ||
7237d3de SS |
198 | static int __init |
199 | acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end) | |
200 | { | |
201 | struct acpi_madt_local_x2apic *processor = NULL; | |
861a6ee8 | 202 | #ifdef CONFIG_X86_X2APIC |
a774635d | 203 | u32 apic_id; |
a35fd282 | 204 | u8 enabled; |
861a6ee8 | 205 | #endif |
7237d3de SS |
206 | |
207 | processor = (struct acpi_madt_local_x2apic *)header; | |
208 | ||
209 | if (BAD_MADT_ENTRY(processor, end)) | |
210 | return -EINVAL; | |
211 | ||
212 | acpi_table_print_madt_entry(header); | |
213 | ||
861a6ee8 | 214 | #ifdef CONFIG_X86_X2APIC |
a35fd282 YL |
215 | apic_id = processor->local_apic_id; |
216 | enabled = processor->lapic_flags & ACPI_MADT_ENABLED; | |
861a6ee8 | 217 | |
10daf10a DL |
218 | /* Ignore invalid ID */ |
219 | if (apic_id == 0xffffffff) | |
220 | return 0; | |
221 | ||
7237d3de SS |
222 | /* |
223 | * We need to register disabled CPU as well to permit | |
224 | * counting disabled CPUs. This allows us to size | |
225 | * cpus_possible_map more accurately, to permit | |
226 | * to not preallocating memory for all NR_CPUS | |
227 | * when we use CPU hotplug. | |
228 | */ | |
a774635d LR |
229 | if (!apic->apic_id_valid(apic_id)) { |
230 | if (enabled) | |
231 | pr_warn(PREFIX "x2apic entry ignored\n"); | |
232 | return 0; | |
233 | } | |
234 | ||
235 | acpi_register_lapic(apic_id, processor->uid, enabled); | |
7237d3de SS |
236 | #else |
237 | printk(KERN_WARNING PREFIX "x2apic entry ignored\n"); | |
238 | #endif | |
239 | ||
240 | return 0; | |
241 | } | |
242 | ||
1da177e4 | 243 | static int __init |
5f3b1a8b | 244 | acpi_parse_lapic(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 245 | { |
5f3b1a8b | 246 | struct acpi_madt_local_apic *processor = NULL; |
1da177e4 | 247 | |
5f3b1a8b | 248 | processor = (struct acpi_madt_local_apic *)header; |
1da177e4 LT |
249 | |
250 | if (BAD_MADT_ENTRY(processor, end)) | |
251 | return -EINVAL; | |
252 | ||
253 | acpi_table_print_madt_entry(header); | |
254 | ||
f3bf1dbe TG |
255 | /* Ignore invalid ID */ |
256 | if (processor->id == 0xff) | |
257 | return 0; | |
258 | ||
7f66ae48 AR |
259 | /* |
260 | * We need to register disabled CPU as well to permit | |
261 | * counting disabled CPUs. This allows us to size | |
262 | * cpus_possible_map more accurately, to permit | |
263 | * to not preallocating memory for all NR_CPUS | |
264 | * when we use CPU hotplug. | |
265 | */ | |
dfac2189 | 266 | acpi_register_lapic(processor->id, /* APIC ID */ |
3e9e57fa | 267 | processor->processor_id, /* ACPI ID */ |
dfac2189 | 268 | processor->lapic_flags & ACPI_MADT_ENABLED); |
1da177e4 LT |
269 | |
270 | return 0; | |
271 | } | |
272 | ||
ac049c1d JS |
273 | static int __init |
274 | acpi_parse_sapic(struct acpi_subtable_header *header, const unsigned long end) | |
275 | { | |
276 | struct acpi_madt_local_sapic *processor = NULL; | |
277 | ||
278 | processor = (struct acpi_madt_local_sapic *)header; | |
279 | ||
280 | if (BAD_MADT_ENTRY(processor, end)) | |
281 | return -EINVAL; | |
282 | ||
283 | acpi_table_print_madt_entry(header); | |
284 | ||
dfac2189 | 285 | acpi_register_lapic((processor->id << 8) | processor->eid,/* APIC ID */ |
3e9e57fa | 286 | processor->processor_id, /* ACPI ID */ |
dfac2189 | 287 | processor->lapic_flags & ACPI_MADT_ENABLED); |
ac049c1d JS |
288 | |
289 | return 0; | |
290 | } | |
291 | ||
1da177e4 | 292 | static int __init |
5f3b1a8b | 293 | acpi_parse_lapic_addr_ovr(struct acpi_subtable_header * header, |
4be44fcd | 294 | const unsigned long end) |
1da177e4 | 295 | { |
5f3b1a8b | 296 | struct acpi_madt_local_apic_override *lapic_addr_ovr = NULL; |
1da177e4 | 297 | |
5f3b1a8b | 298 | lapic_addr_ovr = (struct acpi_madt_local_apic_override *)header; |
1da177e4 LT |
299 | |
300 | if (BAD_MADT_ENTRY(lapic_addr_ovr, end)) | |
301 | return -EINVAL; | |
302 | ||
6de42119 BH |
303 | acpi_table_print_madt_entry(header); |
304 | ||
1da177e4 LT |
305 | acpi_lapic_addr = lapic_addr_ovr->address; |
306 | ||
307 | return 0; | |
308 | } | |
309 | ||
7237d3de SS |
310 | static int __init |
311 | acpi_parse_x2apic_nmi(struct acpi_subtable_header *header, | |
312 | const unsigned long end) | |
313 | { | |
314 | struct acpi_madt_local_x2apic_nmi *x2apic_nmi = NULL; | |
315 | ||
316 | x2apic_nmi = (struct acpi_madt_local_x2apic_nmi *)header; | |
317 | ||
318 | if (BAD_MADT_ENTRY(x2apic_nmi, end)) | |
319 | return -EINVAL; | |
320 | ||
321 | acpi_table_print_madt_entry(header); | |
322 | ||
323 | if (x2apic_nmi->lint != 1) | |
324 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
325 | ||
326 | return 0; | |
327 | } | |
328 | ||
1da177e4 | 329 | static int __init |
5f3b1a8b | 330 | acpi_parse_lapic_nmi(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 331 | { |
5f3b1a8b | 332 | struct acpi_madt_local_apic_nmi *lapic_nmi = NULL; |
1da177e4 | 333 | |
5f3b1a8b | 334 | lapic_nmi = (struct acpi_madt_local_apic_nmi *)header; |
1da177e4 LT |
335 | |
336 | if (BAD_MADT_ENTRY(lapic_nmi, end)) | |
337 | return -EINVAL; | |
338 | ||
339 | acpi_table_print_madt_entry(header); | |
340 | ||
341 | if (lapic_nmi->lint != 1) | |
342 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
343 | ||
344 | return 0; | |
345 | } | |
346 | ||
4be44fcd | 347 | #endif /*CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 348 | |
8466361a | 349 | #ifdef CONFIG_X86_IO_APIC |
8d7cdcb9 JL |
350 | #define MP_ISA_BUS 0 |
351 | ||
4ee2ec1b VS |
352 | static int __init mp_register_ioapic_irq(u8 bus_irq, u8 polarity, |
353 | u8 trigger, u32 gsi); | |
354 | ||
8d7cdcb9 JL |
355 | static void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, |
356 | u32 gsi) | |
357 | { | |
dad5ab0d SH |
358 | /* |
359 | * Check bus_irq boundary. | |
360 | */ | |
361 | if (bus_irq >= NR_IRQS_LEGACY) { | |
362 | pr_warn("Invalid bus_irq %u for legacy override\n", bus_irq); | |
363 | return; | |
364 | } | |
365 | ||
8d7cdcb9 JL |
366 | /* |
367 | * TBD: This check is for faulty timer entries, where the override | |
368 | * erroneously sets the trigger to level, resulting in a HUGE | |
369 | * increase of timer interrupts! | |
370 | */ | |
371 | if ((bus_irq == 0) && (trigger == 3)) | |
372 | trigger = 1; | |
373 | ||
4ee2ec1b VS |
374 | if (mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi) < 0) |
375 | return; | |
2e0ad0e2 JL |
376 | /* |
377 | * Reset default identity mapping if gsi is also an legacy IRQ, | |
378 | * otherwise there will be more than one entry with the same GSI | |
379 | * and acpi_isa_irq_to_gsi() may give wrong result. | |
380 | */ | |
95d76acc | 381 | if (gsi < nr_legacy_irqs() && isa_irq_to_gsi[gsi] == gsi) |
220580fb | 382 | isa_irq_to_gsi[gsi] = INVALID_ACPI_IRQ; |
8d7cdcb9 JL |
383 | isa_irq_to_gsi[bus_irq] = gsi; |
384 | } | |
385 | ||
386 | static int mp_config_acpi_gsi(struct device *dev, u32 gsi, int trigger, | |
387 | int polarity) | |
388 | { | |
389 | #ifdef CONFIG_X86_MPPARSE | |
390 | struct mpc_intsrc mp_irq; | |
391 | struct pci_dev *pdev; | |
392 | unsigned char number; | |
393 | unsigned int devfn; | |
394 | int ioapic; | |
395 | u8 pin; | |
396 | ||
397 | if (!acpi_ioapic) | |
398 | return 0; | |
399 | if (!dev || !dev_is_pci(dev)) | |
400 | return 0; | |
401 | ||
402 | pdev = to_pci_dev(dev); | |
403 | number = pdev->bus->number; | |
404 | devfn = pdev->devfn; | |
405 | pin = pdev->pin; | |
406 | /* print the entry should happen on mptable identically */ | |
407 | mp_irq.type = MP_INTSRC; | |
408 | mp_irq.irqtype = mp_INT; | |
409 | mp_irq.irqflag = (trigger == ACPI_EDGE_SENSITIVE ? 4 : 0x0c) | | |
410 | (polarity == ACPI_ACTIVE_HIGH ? 1 : 3); | |
411 | mp_irq.srcbus = number; | |
412 | mp_irq.srcbusirq = (((devfn >> 3) & 0x1f) << 2) | ((pin - 1) & 3); | |
413 | ioapic = mp_find_ioapic(gsi); | |
414 | mp_irq.dstapic = mpc_ioapic_id(ioapic); | |
415 | mp_irq.dstirq = mp_find_ioapic_pin(ioapic, gsi); | |
416 | ||
417 | mp_save_irq(&mp_irq); | |
418 | #endif | |
419 | return 0; | |
420 | } | |
421 | ||
25271415 VS |
422 | static int __init mp_register_ioapic_irq(u8 bus_irq, u8 polarity, |
423 | u8 trigger, u32 gsi) | |
424 | { | |
425 | struct mpc_intsrc mp_irq; | |
426 | int ioapic, pin; | |
427 | ||
428 | /* Convert 'gsi' to 'ioapic.pin'(INTIN#) */ | |
429 | ioapic = mp_find_ioapic(gsi); | |
430 | if (ioapic < 0) { | |
431 | pr_warn("Failed to find ioapic for gsi : %u\n", gsi); | |
432 | return ioapic; | |
433 | } | |
434 | ||
435 | pin = mp_find_ioapic_pin(ioapic, gsi); | |
436 | ||
437 | mp_irq.type = MP_INTSRC; | |
438 | mp_irq.irqtype = mp_INT; | |
439 | mp_irq.irqflag = (trigger << 2) | polarity; | |
440 | mp_irq.srcbus = MP_ISA_BUS; | |
441 | mp_irq.srcbusirq = bus_irq; | |
442 | mp_irq.dstapic = mpc_ioapic_id(ioapic); | |
443 | mp_irq.dstirq = pin; | |
444 | ||
445 | mp_save_irq(&mp_irq); | |
446 | ||
447 | return 0; | |
448 | } | |
449 | ||
1da177e4 | 450 | static int __init |
5f3b1a8b | 451 | acpi_parse_ioapic(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 452 | { |
5f3b1a8b | 453 | struct acpi_madt_io_apic *ioapic = NULL; |
ca7e28aa JL |
454 | struct ioapic_domain_cfg cfg = { |
455 | .type = IOAPIC_DOMAIN_DYNAMIC, | |
f7a0c786 | 456 | .ops = &mp_ioapic_irqdomain_ops, |
ca7e28aa | 457 | }; |
1da177e4 | 458 | |
5f3b1a8b | 459 | ioapic = (struct acpi_madt_io_apic *)header; |
1da177e4 LT |
460 | |
461 | if (BAD_MADT_ENTRY(ioapic, end)) | |
462 | return -EINVAL; | |
4be44fcd | 463 | |
1da177e4 LT |
464 | acpi_table_print_madt_entry(header); |
465 | ||
ca7e28aa JL |
466 | /* Statically assign IRQ numbers for IOAPICs hosting legacy IRQs */ |
467 | if (ioapic->global_irq_base < nr_legacy_irqs()) | |
468 | cfg.type = IOAPIC_DOMAIN_LEGACY; | |
469 | ||
470 | mp_register_ioapic(ioapic->id, ioapic->address, ioapic->global_irq_base, | |
471 | &cfg); | |
4be44fcd | 472 | |
1da177e4 LT |
473 | return 0; |
474 | } | |
475 | ||
476 | /* | |
477 | * Parse Interrupt Source Override for the ACPI SCI | |
478 | */ | |
9d2062b8 | 479 | static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger, u32 gsi) |
1da177e4 LT |
480 | { |
481 | if (trigger == 0) /* compatible SCI trigger is level */ | |
482 | trigger = 3; | |
483 | ||
484 | if (polarity == 0) /* compatible SCI polarity is low */ | |
485 | polarity = 3; | |
486 | ||
487 | /* Command-line over-ride via acpi_sci= */ | |
5f3b1a8b AS |
488 | if (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) |
489 | trigger = (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) >> 2; | |
1da177e4 | 490 | |
5f3b1a8b AS |
491 | if (acpi_sci_flags & ACPI_MADT_POLARITY_MASK) |
492 | polarity = acpi_sci_flags & ACPI_MADT_POLARITY_MASK; | |
1da177e4 | 493 | |
25271415 VS |
494 | if (bus_irq < NR_IRQS_LEGACY) |
495 | mp_override_legacy_irq(bus_irq, polarity, trigger, gsi); | |
496 | else | |
497 | mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi); | |
498 | ||
f1caa61d | 499 | acpi_penalize_sci_irq(bus_irq, trigger, polarity); |
1da177e4 LT |
500 | |
501 | /* | |
502 | * stash over-ride to indicate we've been here | |
cee324b1 | 503 | * and for later update of acpi_gbl_FADT |
1da177e4 | 504 | */ |
7bdd21ce | 505 | acpi_sci_override_gsi = gsi; |
1da177e4 LT |
506 | return; |
507 | } | |
508 | ||
509 | static int __init | |
5f3b1a8b | 510 | acpi_parse_int_src_ovr(struct acpi_subtable_header * header, |
4be44fcd | 511 | const unsigned long end) |
1da177e4 | 512 | { |
5f3b1a8b | 513 | struct acpi_madt_interrupt_override *intsrc = NULL; |
1da177e4 | 514 | |
5f3b1a8b | 515 | intsrc = (struct acpi_madt_interrupt_override *)header; |
1da177e4 LT |
516 | |
517 | if (BAD_MADT_ENTRY(intsrc, end)) | |
518 | return -EINVAL; | |
519 | ||
520 | acpi_table_print_madt_entry(header); | |
521 | ||
5f3b1a8b | 522 | if (intsrc->source_irq == acpi_gbl_FADT.sci_interrupt) { |
9d2062b8 | 523 | acpi_sci_ioapic_setup(intsrc->source_irq, |
5f3b1a8b | 524 | intsrc->inti_flags & ACPI_MADT_POLARITY_MASK, |
9d2062b8 EB |
525 | (intsrc->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2, |
526 | intsrc->global_irq); | |
1da177e4 LT |
527 | return 0; |
528 | } | |
529 | ||
ae10ccdc | 530 | if (intsrc->source_irq == 0) { |
7f74f8f2 | 531 | if (acpi_skip_timer_override) { |
ae10ccdc | 532 | printk(PREFIX "BIOS IRQ0 override ignored.\n"); |
7f74f8f2 AH |
533 | return 0; |
534 | } | |
ae10ccdc FT |
535 | |
536 | if ((intsrc->global_irq == 2) && acpi_fix_pin2_polarity | |
537 | && (intsrc->inti_flags & ACPI_MADT_POLARITY_MASK)) { | |
7f74f8f2 AH |
538 | intsrc->inti_flags &= ~ACPI_MADT_POLARITY_MASK; |
539 | printk(PREFIX "BIOS IRQ0 pin2 override: forcing polarity to high active.\n"); | |
540 | } | |
1da177e4 LT |
541 | } |
542 | ||
5f3b1a8b AS |
543 | mp_override_legacy_irq(intsrc->source_irq, |
544 | intsrc->inti_flags & ACPI_MADT_POLARITY_MASK, | |
545 | (intsrc->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2, | |
546 | intsrc->global_irq); | |
1da177e4 LT |
547 | |
548 | return 0; | |
549 | } | |
550 | ||
1da177e4 | 551 | static int __init |
5f3b1a8b | 552 | acpi_parse_nmi_src(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 553 | { |
5f3b1a8b | 554 | struct acpi_madt_nmi_source *nmi_src = NULL; |
1da177e4 | 555 | |
5f3b1a8b | 556 | nmi_src = (struct acpi_madt_nmi_source *)header; |
1da177e4 LT |
557 | |
558 | if (BAD_MADT_ENTRY(nmi_src, end)) | |
559 | return -EINVAL; | |
560 | ||
561 | acpi_table_print_madt_entry(header); | |
562 | ||
563 | /* TBD: Support nimsrc entries? */ | |
564 | ||
565 | return 0; | |
566 | } | |
567 | ||
4be44fcd | 568 | #endif /* CONFIG_X86_IO_APIC */ |
1da177e4 | 569 | |
1da177e4 LT |
570 | /* |
571 | * acpi_pic_sci_set_trigger() | |
5f3b1a8b | 572 | * |
1da177e4 LT |
573 | * use ELCR to set PIC-mode trigger type for SCI |
574 | * | |
575 | * If a PIC-mode SCI is not recognized or gives spurious IRQ7's | |
576 | * it may require Edge Trigger -- use "acpi_sci=edge" | |
577 | * | |
578 | * Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers | |
579 | * for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge. | |
27b46d76 SA |
580 | * ECLR1 is IRQs 0-7 (IRQ 0, 1, 2 must be 0) |
581 | * ECLR2 is IRQs 8-15 (IRQ 8, 13 must be 0) | |
1da177e4 LT |
582 | */ |
583 | ||
4be44fcd | 584 | void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger) |
1da177e4 LT |
585 | { |
586 | unsigned int mask = 1 << irq; | |
587 | unsigned int old, new; | |
588 | ||
589 | /* Real old ELCR mask */ | |
590 | old = inb(0x4d0) | (inb(0x4d1) << 8); | |
591 | ||
592 | /* | |
27b46d76 | 593 | * If we use ACPI to set PCI IRQs, then we should clear ELCR |
1da177e4 LT |
594 | * since we will set it correctly as we enable the PCI irq |
595 | * routing. | |
596 | */ | |
597 | new = acpi_noirq ? old : 0; | |
598 | ||
599 | /* | |
600 | * Update SCI information in the ELCR, it isn't in the PCI | |
601 | * routing tables.. | |
602 | */ | |
603 | switch (trigger) { | |
4be44fcd | 604 | case 1: /* Edge - clear */ |
1da177e4 LT |
605 | new &= ~mask; |
606 | break; | |
4be44fcd | 607 | case 3: /* Level - set */ |
1da177e4 LT |
608 | new |= mask; |
609 | break; | |
610 | } | |
611 | ||
612 | if (old == new) | |
613 | return; | |
614 | ||
615 | printk(PREFIX "setting ELCR to %04x (from %04x)\n", new, old); | |
616 | outb(new, 0x4d0); | |
617 | outb(new >> 8, 0x4d1); | |
618 | } | |
619 | ||
6b9fb708 | 620 | int acpi_gsi_to_irq(u32 gsi, unsigned int *irqp) |
1da177e4 | 621 | { |
b568b860 JL |
622 | int rc, irq, trigger, polarity; |
623 | ||
1ea76fba JL |
624 | if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { |
625 | *irqp = gsi; | |
626 | return 0; | |
627 | } | |
628 | ||
b568b860 | 629 | rc = acpi_get_override_irq(gsi, &trigger, &polarity); |
a89bca27 AS |
630 | if (rc) |
631 | return rc; | |
b568b860 | 632 | |
a89bca27 AS |
633 | trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE; |
634 | polarity = polarity ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH; | |
635 | irq = acpi_register_gsi(NULL, gsi, trigger, polarity); | |
636 | if (irq < 0) | |
637 | return irq; | |
638 | ||
639 | *irqp = irq; | |
640 | return 0; | |
1da177e4 | 641 | } |
81e88fdc | 642 | EXPORT_SYMBOL_GPL(acpi_gsi_to_irq); |
1da177e4 | 643 | |
2c2df841 EB |
644 | int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi) |
645 | { | |
95d76acc | 646 | if (isa_irq < nr_legacy_irqs() && |
220580fb | 647 | isa_irq_to_gsi[isa_irq] != INVALID_ACPI_IRQ) { |
032329ee JL |
648 | *gsi = isa_irq_to_gsi[isa_irq]; |
649 | return 0; | |
650 | } | |
651 | ||
652 | return -1; | |
2c2df841 EB |
653 | } |
654 | ||
2f065aef JF |
655 | static int acpi_register_gsi_pic(struct device *dev, u32 gsi, |
656 | int trigger, int polarity) | |
1da177e4 | 657 | { |
1da177e4 LT |
658 | #ifdef CONFIG_PCI |
659 | /* | |
660 | * Make sure all (legacy) PCI IRQs are set as level-triggered. | |
661 | */ | |
2f065aef | 662 | if (trigger == ACPI_LEVEL_SENSITIVE) |
ea6cd250 | 663 | elcr_set_level_irq(gsi); |
1da177e4 LT |
664 | #endif |
665 | ||
2f065aef JF |
666 | return gsi; |
667 | } | |
668 | ||
2f82c9dc | 669 | #ifdef CONFIG_X86_LOCAL_APIC |
2f065aef JF |
670 | static int acpi_register_gsi_ioapic(struct device *dev, u32 gsi, |
671 | int trigger, int polarity) | |
672 | { | |
84245af7 | 673 | int irq = gsi; |
1da177e4 | 674 | #ifdef CONFIG_X86_IO_APIC |
46176f39 JL |
675 | int node; |
676 | struct irq_alloc_info info; | |
677 | ||
678 | node = dev ? dev_to_node(dev) : NUMA_NO_NODE; | |
679 | trigger = trigger == ACPI_EDGE_SENSITIVE ? 0 : 1; | |
680 | polarity = polarity == ACPI_ACTIVE_HIGH ? 0 : 1; | |
681 | ioapic_set_alloc_attr(&info, node, trigger, polarity); | |
682 | ||
5da2fd26 | 683 | mutex_lock(&acpi_ioapic_lock); |
46176f39 JL |
684 | irq = mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC, &info); |
685 | /* Don't set up the ACPI SCI because it's already set up */ | |
7d7fb91c | 686 | if (irq >= 0 && enable_update_mptable && gsi != acpi_gbl_FADT.sci_interrupt) |
46176f39 | 687 | mp_config_acpi_gsi(dev, gsi, trigger, polarity); |
5da2fd26 | 688 | mutex_unlock(&acpi_ioapic_lock); |
1da177e4 | 689 | #endif |
2f065aef | 690 | |
84245af7 | 691 | return irq; |
2f065aef JF |
692 | } |
693 | ||
6a38fa0e JL |
694 | static void acpi_unregister_gsi_ioapic(u32 gsi) |
695 | { | |
696 | #ifdef CONFIG_X86_IO_APIC | |
46176f39 JL |
697 | int irq; |
698 | ||
5da2fd26 | 699 | mutex_lock(&acpi_ioapic_lock); |
46176f39 JL |
700 | irq = mp_map_gsi_to_irq(gsi, 0, NULL); |
701 | if (irq > 0) | |
702 | mp_unmap_irq(irq); | |
5da2fd26 | 703 | mutex_unlock(&acpi_ioapic_lock); |
6a38fa0e | 704 | #endif |
2f065aef | 705 | } |
2f82c9dc | 706 | #endif |
2f065aef | 707 | |
90f6881e JF |
708 | int (*__acpi_register_gsi)(struct device *dev, u32 gsi, |
709 | int trigger, int polarity) = acpi_register_gsi_pic; | |
6a38fa0e | 710 | void (*__acpi_unregister_gsi)(u32 gsi) = NULL; |
2f065aef | 711 | |
d6a77ead KRW |
712 | #ifdef CONFIG_ACPI_SLEEP |
713 | int (*acpi_suspend_lowlevel)(void) = x86_acpi_suspend_lowlevel; | |
714 | #else | |
715 | int (*acpi_suspend_lowlevel)(void); | |
716 | #endif | |
717 | ||
2f065aef JF |
718 | /* |
719 | * success: return IRQ number (>=0) | |
720 | * failure: return < 0 | |
721 | */ | |
722 | int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity) | |
723 | { | |
84245af7 | 724 | return __acpi_register_gsi(dev, gsi, trigger, polarity); |
1da177e4 | 725 | } |
35e92b78 AS |
726 | EXPORT_SYMBOL_GPL(acpi_register_gsi); |
727 | ||
728 | void acpi_unregister_gsi(u32 gsi) | |
729 | { | |
6a38fa0e JL |
730 | if (__acpi_unregister_gsi) |
731 | __acpi_unregister_gsi(gsi); | |
35e92b78 AS |
732 | } |
733 | EXPORT_SYMBOL_GPL(acpi_unregister_gsi); | |
4be44fcd | 734 | |
9f50c6ea | 735 | #ifdef CONFIG_X86_LOCAL_APIC |
e819813f | 736 | static void __init acpi_set_irq_model_ioapic(void) |
2f065aef JF |
737 | { |
738 | acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; | |
739 | __acpi_register_gsi = acpi_register_gsi_ioapic; | |
6a38fa0e | 740 | __acpi_unregister_gsi = acpi_unregister_gsi_ioapic; |
2f065aef JF |
741 | acpi_ioapic = 1; |
742 | } | |
9f50c6ea | 743 | #endif |
2f065aef | 744 | |
1da177e4 LT |
745 | /* |
746 | * ACPI based hotplug support for CPU | |
747 | */ | |
748 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | |
d8191fa4 | 749 | #include <acpi/processor.h> |
009cbadb | 750 | |
c962cff1 | 751 | static int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid) |
0271f910 HL |
752 | { |
753 | #ifdef CONFIG_ACPI_NUMA | |
754 | int nid; | |
755 | ||
756 | nid = acpi_get_node(handle); | |
4370a3ef | 757 | if (nid != NUMA_NO_NODE) { |
896dc506 JL |
758 | set_apicid_to_node(physid, nid); |
759 | numa_set_node(cpu, nid); | |
760 | } | |
0271f910 | 761 | #endif |
dc6db24d | 762 | return 0; |
0271f910 | 763 | } |
009cbadb | 764 | |
febf2407 VK |
765 | int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, |
766 | int *pcpu) | |
1da177e4 | 767 | { |
73fea175 | 768 | int cpu; |
ee943a82 | 769 | |
febf2407 | 770 | cpu = acpi_register_lapic(physid, acpi_id, ACPI_MADT_ENABLED); |
7e1f85f9 JL |
771 | if (cpu < 0) { |
772 | pr_info(PREFIX "Unable to map lapic to logical cpu number\n"); | |
773 | return cpu; | |
73fea175 AR |
774 | } |
775 | ||
d8191fa4 | 776 | acpi_processor_set_pdc(handle); |
0271f910 | 777 | acpi_map_cpu2node(handle, cpu, physid); |
73fea175 AR |
778 | |
779 | *pcpu = cpu; | |
7e1f85f9 | 780 | return 0; |
1da177e4 | 781 | } |
d02dc27d | 782 | EXPORT_SYMBOL(acpi_map_cpu); |
1da177e4 | 783 | |
d02dc27d | 784 | int acpi_unmap_cpu(int cpu) |
1da177e4 | 785 | { |
c4c60524 WC |
786 | #ifdef CONFIG_ACPI_NUMA |
787 | set_apicid_to_node(per_cpu(x86_cpu_to_apicid, cpu), NUMA_NO_NODE); | |
788 | #endif | |
789 | ||
71fff5e6 | 790 | per_cpu(x86_cpu_to_apicid, cpu) = -1; |
9628937d | 791 | set_cpu_present(cpu, false); |
73fea175 AR |
792 | num_processors--; |
793 | ||
794 | return (0); | |
1da177e4 | 795 | } |
d02dc27d | 796 | EXPORT_SYMBOL(acpi_unmap_cpu); |
4be44fcd | 797 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ |
1da177e4 | 798 | |
4be44fcd | 799 | int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) |
b1bb248a | 800 | { |
7db298cb JL |
801 | int ret = -ENOSYS; |
802 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
803 | int ioapic_id; | |
804 | u64 addr; | |
805 | struct ioapic_domain_cfg cfg = { | |
806 | .type = IOAPIC_DOMAIN_DYNAMIC, | |
f7a0c786 | 807 | .ops = &mp_ioapic_irqdomain_ops, |
7db298cb JL |
808 | }; |
809 | ||
810 | ioapic_id = acpi_get_ioapic_id(handle, gsi_base, &addr); | |
811 | if (ioapic_id < 0) { | |
812 | unsigned long long uid; | |
813 | acpi_status status; | |
814 | ||
815 | status = acpi_evaluate_integer(handle, METHOD_NAME__UID, | |
816 | NULL, &uid); | |
817 | if (ACPI_FAILURE(status)) { | |
818 | acpi_handle_warn(handle, "failed to get IOAPIC ID.\n"); | |
819 | return -EINVAL; | |
820 | } | |
821 | ioapic_id = (int)uid; | |
822 | } | |
823 | ||
824 | mutex_lock(&acpi_ioapic_lock); | |
825 | ret = mp_register_ioapic(ioapic_id, phys_addr, gsi_base, &cfg); | |
826 | mutex_unlock(&acpi_ioapic_lock); | |
827 | #endif | |
828 | ||
829 | return ret; | |
b1bb248a KK |
830 | } |
831 | EXPORT_SYMBOL(acpi_register_ioapic); | |
832 | ||
4be44fcd | 833 | int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base) |
b1bb248a | 834 | { |
15516a3b JL |
835 | int ret = -ENOSYS; |
836 | ||
837 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
838 | mutex_lock(&acpi_ioapic_lock); | |
839 | ret = mp_unregister_ioapic(gsi_base); | |
840 | mutex_unlock(&acpi_ioapic_lock); | |
841 | #endif | |
4be44fcd | 842 | |
15516a3b JL |
843 | return ret; |
844 | } | |
b1bb248a KK |
845 | EXPORT_SYMBOL(acpi_unregister_ioapic); |
846 | ||
e89900c9 JL |
847 | /** |
848 | * acpi_ioapic_registered - Check whether IOAPIC assoicatied with @gsi_base | |
849 | * has been registered | |
850 | * @handle: ACPI handle of the IOAPIC deivce | |
851 | * @gsi_base: GSI base associated with the IOAPIC | |
852 | * | |
853 | * Assume caller holds some type of lock to serialize acpi_ioapic_registered() | |
854 | * with acpi_register_ioapic()/acpi_unregister_ioapic(). | |
855 | */ | |
856 | int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base) | |
857 | { | |
858 | int ret = 0; | |
859 | ||
860 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
861 | mutex_lock(&acpi_ioapic_lock); | |
862 | ret = mp_ioapic_registered(gsi_base); | |
863 | mutex_unlock(&acpi_ioapic_lock); | |
864 | #endif | |
865 | ||
866 | return ret; | |
867 | } | |
868 | ||
5f3b1a8b | 869 | static int __init acpi_parse_sbf(struct acpi_table_header *table) |
1da177e4 | 870 | { |
2fad9308 | 871 | struct acpi_table_boot *sb = (struct acpi_table_boot *)table; |
1da177e4 | 872 | |
5f3b1a8b | 873 | sbf_port = sb->cmos_index; /* Save CMOS port */ |
1da177e4 LT |
874 | |
875 | return 0; | |
876 | } | |
877 | ||
1da177e4 | 878 | #ifdef CONFIG_HPET_TIMER |
2d0c87c3 | 879 | #include <asm/hpet.h> |
1da177e4 | 880 | |
dd96dc32 | 881 | static struct resource *hpet_res __initdata; |
a1dfd851 | 882 | |
5f3b1a8b | 883 | static int __init acpi_parse_hpet(struct acpi_table_header *table) |
1da177e4 | 884 | { |
2fad9308 | 885 | struct acpi_table_hpet *hpet_tbl = (struct acpi_table_hpet *)table; |
1da177e4 | 886 | |
ad363f80 | 887 | if (hpet_tbl->address.space_id != ACPI_SPACE_MEM) { |
1da177e4 LT |
888 | printk(KERN_WARNING PREFIX "HPET timers must be located in " |
889 | "memory.\n"); | |
890 | return -1; | |
891 | } | |
f0f4c343 | 892 | |
2d0c87c3 | 893 | hpet_address = hpet_tbl->address.address; |
c8bc6f3c | 894 | hpet_blockid = hpet_tbl->sequence; |
f4df73c2 TG |
895 | |
896 | /* | |
897 | * Some broken BIOSes advertise HPET at 0x0. We really do not | |
898 | * want to allocate a resource there. | |
899 | */ | |
900 | if (!hpet_address) { | |
901 | printk(KERN_WARNING PREFIX | |
902 | "HPET id: %#x base: %#lx is invalid\n", | |
903 | hpet_tbl->id, hpet_address); | |
904 | return 0; | |
905 | } | |
906 | #ifdef CONFIG_X86_64 | |
907 | /* | |
908 | * Some even more broken BIOSes advertise HPET at | |
909 | * 0xfed0000000000000 instead of 0xfed00000. Fix it up and add | |
910 | * some noise: | |
911 | */ | |
912 | if (hpet_address == 0xfed0000000000000UL) { | |
913 | if (!hpet_force_user) { | |
914 | printk(KERN_WARNING PREFIX "HPET id: %#x " | |
915 | "base: 0xfed0000000000000 is bogus\n " | |
916 | "try hpet=force on the kernel command line to " | |
917 | "fix it up to 0xfed00000.\n", hpet_tbl->id); | |
918 | hpet_address = 0; | |
919 | return 0; | |
920 | } | |
921 | printk(KERN_WARNING PREFIX | |
922 | "HPET id: %#x base: 0xfed0000000000000 fixed up " | |
923 | "to 0xfed00000.\n", hpet_tbl->id); | |
924 | hpet_address >>= 32; | |
925 | } | |
926 | #endif | |
4be44fcd | 927 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", |
2d0c87c3 | 928 | hpet_tbl->id, hpet_address); |
1da177e4 | 929 | |
a1dfd851 AD |
930 | /* |
931 | * Allocate and initialize the HPET firmware resource for adding into | |
932 | * the resource tree during the lateinit timeframe. | |
933 | */ | |
934 | #define HPET_RESOURCE_NAME_SIZE 9 | |
935 | hpet_res = alloc_bootmem(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE); | |
936 | ||
a1dfd851 AD |
937 | hpet_res->name = (void *)&hpet_res[1]; |
938 | hpet_res->flags = IORESOURCE_MEM; | |
939 | snprintf((char *)hpet_res->name, HPET_RESOURCE_NAME_SIZE, "HPET %u", | |
940 | hpet_tbl->sequence); | |
941 | ||
942 | hpet_res->start = hpet_address; | |
943 | hpet_res->end = hpet_address + (1 * 1024) - 1; | |
944 | ||
1da177e4 LT |
945 | return 0; |
946 | } | |
a1dfd851 AD |
947 | |
948 | /* | |
949 | * hpet_insert_resource inserts the HPET resources used into the resource | |
950 | * tree. | |
951 | */ | |
952 | static __init int hpet_insert_resource(void) | |
953 | { | |
954 | if (!hpet_res) | |
955 | return 1; | |
956 | ||
957 | return insert_resource(&iomem_resource, hpet_res); | |
958 | } | |
959 | ||
960 | late_initcall(hpet_insert_resource); | |
961 | ||
1da177e4 LT |
962 | #else |
963 | #define acpi_parse_hpet NULL | |
964 | #endif | |
965 | ||
5f3b1a8b | 966 | static int __init acpi_parse_fadt(struct acpi_table_header *table) |
1da177e4 | 967 | { |
7a17b82c LR |
968 | if (!(acpi_gbl_FADT.boot_flags & ACPI_FADT_LEGACY_DEVICES)) { |
969 | pr_debug("ACPI: no legacy devices present\n"); | |
970 | x86_platform.legacy.devices.pnpbios = 0; | |
971 | } | |
972 | ||
93ffa9a4 DT |
973 | if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID && |
974 | !(acpi_gbl_FADT.boot_flags & ACPI_FADT_8042) && | |
975 | x86_platform.legacy.i8042 != X86_LEGACY_I8042_PLATFORM_ABSENT) { | |
976 | pr_debug("ACPI: i8042 controller is absent\n"); | |
977 | x86_platform.legacy.i8042 = X86_LEGACY_I8042_FIRMWARE_ABSENT; | |
978 | } | |
979 | ||
088a8ef8 LR |
980 | if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_CMOS_RTC) { |
981 | pr_debug("ACPI: not registering RTC platform device\n"); | |
982 | x86_platform.legacy.rtc = 0; | |
983 | } | |
90660ec3 | 984 | |
6d730525 JG |
985 | if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_VGA) { |
986 | pr_debug("ACPI: probing for VGA not safe\n"); | |
987 | x86_platform.legacy.no_vga = 1; | |
988 | } | |
989 | ||
1da177e4 LT |
990 | #ifdef CONFIG_X86_PM_TIMER |
991 | /* detect the location of the ACPI PM Timer */ | |
5f3b1a8b | 992 | if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) { |
1da177e4 | 993 | /* FADT rev. 2 */ |
5f3b1a8b | 994 | if (acpi_gbl_FADT.xpm_timer_block.space_id != |
4be44fcd | 995 | ACPI_ADR_SPACE_SYSTEM_IO) |
1da177e4 LT |
996 | return 0; |
997 | ||
5f3b1a8b | 998 | pmtmr_ioport = acpi_gbl_FADT.xpm_timer_block.address; |
e6e87b4b DSL |
999 | /* |
1000 | * "X" fields are optional extensions to the original V1.0 | |
1001 | * fields, so we must selectively expand V1.0 fields if the | |
1002 | * corresponding X field is zero. | |
1003 | */ | |
1004 | if (!pmtmr_ioport) | |
5f3b1a8b | 1005 | pmtmr_ioport = acpi_gbl_FADT.pm_timer_block; |
1da177e4 LT |
1006 | } else { |
1007 | /* FADT rev. 1 */ | |
5f3b1a8b | 1008 | pmtmr_ioport = acpi_gbl_FADT.pm_timer_block; |
1da177e4 LT |
1009 | } |
1010 | if (pmtmr_ioport) | |
4be44fcd LB |
1011 | printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n", |
1012 | pmtmr_ioport); | |
1da177e4 LT |
1013 | #endif |
1014 | return 0; | |
1015 | } | |
1016 | ||
1da177e4 LT |
1017 | #ifdef CONFIG_X86_LOCAL_APIC |
1018 | /* | |
1019 | * Parse LAPIC entries in MADT | |
1020 | * returns 0 on success, < 0 on error | |
1021 | */ | |
31d2092e | 1022 | |
cbf9bd60 YL |
1023 | static int __init early_acpi_parse_madt_lapic_addr_ovr(void) |
1024 | { | |
1025 | int count; | |
1026 | ||
93984fbd | 1027 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
cbf9bd60 YL |
1028 | return -ENODEV; |
1029 | ||
1030 | /* | |
1031 | * Note that the LAPIC address is obtained from the MADT (32-bit value) | |
6a6256f9 | 1032 | * and (optionally) overridden by a LAPIC_ADDR_OVR entry (64-bit value). |
cbf9bd60 YL |
1033 | */ |
1034 | ||
e819813f JL |
1035 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE, |
1036 | acpi_parse_lapic_addr_ovr, 0); | |
cbf9bd60 YL |
1037 | if (count < 0) { |
1038 | printk(KERN_ERR PREFIX | |
1039 | "Error parsing LAPIC address override entry\n"); | |
1040 | return count; | |
1041 | } | |
1042 | ||
c0104d38 | 1043 | register_lapic_address(acpi_lapic_addr); |
cbf9bd60 YL |
1044 | |
1045 | return count; | |
1046 | } | |
1047 | ||
4be44fcd | 1048 | static int __init acpi_parse_madt_lapic_entries(void) |
1da177e4 LT |
1049 | { |
1050 | int count; | |
7237d3de | 1051 | int x2count = 0; |
d81056b5 LA |
1052 | int ret; |
1053 | struct acpi_subtable_proc madt_proc[2]; | |
1da177e4 | 1054 | |
93984fbd | 1055 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
0fcd2709 AK |
1056 | return -ENODEV; |
1057 | ||
ac049c1d | 1058 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC, |
cb2ded37 | 1059 | acpi_parse_sapic, MAX_LOCAL_APIC); |
ac049c1d | 1060 | |
7237d3de | 1061 | if (!count) { |
d81056b5 LA |
1062 | memset(madt_proc, 0, sizeof(madt_proc)); |
1063 | madt_proc[0].id = ACPI_MADT_TYPE_LOCAL_APIC; | |
1064 | madt_proc[0].handler = acpi_parse_lapic; | |
1065 | madt_proc[1].id = ACPI_MADT_TYPE_LOCAL_X2APIC; | |
1066 | madt_proc[1].handler = acpi_parse_x2apic; | |
1067 | ret = acpi_table_parse_entries_array(ACPI_SIG_MADT, | |
1068 | sizeof(struct acpi_table_madt), | |
1069 | madt_proc, ARRAY_SIZE(madt_proc), MAX_LOCAL_APIC); | |
1070 | if (ret < 0) { | |
1071 | printk(KERN_ERR PREFIX | |
1072 | "Error parsing LAPIC/X2APIC entries\n"); | |
1073 | return ret; | |
1074 | } | |
1075 | ||
c12f29a5 AS |
1076 | count = madt_proc[0].count; |
1077 | x2count = madt_proc[1].count; | |
7237d3de SS |
1078 | } |
1079 | if (!count && !x2count) { | |
1da177e4 LT |
1080 | printk(KERN_ERR PREFIX "No LAPIC entries present\n"); |
1081 | /* TBD: Cleanup to allow fallback to MPS */ | |
1082 | return -ENODEV; | |
7237d3de | 1083 | } else if (count < 0 || x2count < 0) { |
1da177e4 LT |
1084 | printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n"); |
1085 | /* TBD: Cleanup to allow fallback to MPS */ | |
1086 | return count; | |
1087 | } | |
1088 | ||
e819813f JL |
1089 | x2count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_X2APIC_NMI, |
1090 | acpi_parse_x2apic_nmi, 0); | |
1091 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, | |
1092 | acpi_parse_lapic_nmi, 0); | |
7237d3de | 1093 | if (count < 0 || x2count < 0) { |
1da177e4 LT |
1094 | printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); |
1095 | /* TBD: Cleanup to allow fallback to MPS */ | |
1096 | return count; | |
1097 | } | |
1098 | return 0; | |
1099 | } | |
4be44fcd | 1100 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 1101 | |
8466361a | 1102 | #ifdef CONFIG_X86_IO_APIC |
a491cc90 | 1103 | static void __init mp_config_acpi_legacy_irqs(void) |
11113f84 | 1104 | { |
6df8809b | 1105 | int i; |
c2c21745 | 1106 | struct mpc_intsrc mp_irq; |
11113f84 | 1107 | |
bb8187d3 | 1108 | #ifdef CONFIG_EISA |
11113f84 AS |
1109 | /* |
1110 | * Fabricate the legacy ISA bus (bus #31). | |
1111 | */ | |
1112 | mp_bus_id_to_type[MP_ISA_BUS] = MP_BUS_ISA; | |
1113 | #endif | |
1114 | set_bit(MP_ISA_BUS, mp_bus_not_pci); | |
42d516ce | 1115 | pr_debug("Bus #%d is ISA (nIRQs: %d)\n", MP_ISA_BUS, nr_legacy_irqs()); |
11113f84 | 1116 | |
11113f84 AS |
1117 | /* |
1118 | * Use the default configuration for the IRQs 0-15. Unless | |
1119 | * overridden by (MADT) interrupt source override entries. | |
1120 | */ | |
95d76acc | 1121 | for (i = 0; i < nr_legacy_irqs(); i++) { |
0fd52670 EB |
1122 | int ioapic, pin; |
1123 | unsigned int dstapic; | |
11113f84 | 1124 | int idx; |
0fd52670 EB |
1125 | u32 gsi; |
1126 | ||
1127 | /* Locate the gsi that irq i maps to. */ | |
1128 | if (acpi_isa_irq_to_gsi(i, &gsi)) | |
1129 | continue; | |
1130 | ||
1131 | /* | |
1132 | * Locate the IOAPIC that manages the ISA IRQ. | |
1133 | */ | |
1134 | ioapic = mp_find_ioapic(gsi); | |
1135 | if (ioapic < 0) | |
1136 | continue; | |
1137 | pin = mp_find_ioapic_pin(ioapic, gsi); | |
d5371430 | 1138 | dstapic = mpc_ioapic_id(ioapic); |
11113f84 AS |
1139 | |
1140 | for (idx = 0; idx < mp_irq_entries; idx++) { | |
c2c21745 | 1141 | struct mpc_intsrc *irq = mp_irqs + idx; |
11113f84 AS |
1142 | |
1143 | /* Do we already have a mapping for this ISA IRQ? */ | |
c2c21745 | 1144 | if (irq->srcbus == MP_ISA_BUS && irq->srcbusirq == i) |
11113f84 AS |
1145 | break; |
1146 | ||
1147 | /* Do we already have a mapping for this IOAPIC pin */ | |
0fd52670 | 1148 | if (irq->dstapic == dstapic && irq->dstirq == pin) |
11113f84 AS |
1149 | break; |
1150 | } | |
1151 | ||
1152 | if (idx != mp_irq_entries) { | |
1153 | printk(KERN_DEBUG "ACPI: IRQ%d used by override.\n", i); | |
1154 | continue; /* IRQ already used */ | |
1155 | } | |
1156 | ||
c2c21745 JSR |
1157 | mp_irq.type = MP_INTSRC; |
1158 | mp_irq.irqflag = 0; /* Conforming */ | |
1159 | mp_irq.srcbus = MP_ISA_BUS; | |
1160 | mp_irq.dstapic = dstapic; | |
1161 | mp_irq.irqtype = mp_INT; | |
1162 | mp_irq.srcbusirq = i; /* Identity mapped */ | |
0fd52670 | 1163 | mp_irq.dstirq = pin; |
11113f84 | 1164 | |
2d8009ba | 1165 | mp_save_irq(&mp_irq); |
11113f84 AS |
1166 | } |
1167 | } | |
1168 | ||
1da177e4 LT |
1169 | /* |
1170 | * Parse IOAPIC related entries in MADT | |
1171 | * returns 0 on success, < 0 on error | |
1172 | */ | |
4be44fcd | 1173 | static int __init acpi_parse_madt_ioapic_entries(void) |
1da177e4 LT |
1174 | { |
1175 | int count; | |
1176 | ||
1177 | /* | |
1178 | * ACPI interpreter is required to complete interrupt setup, | |
1179 | * so if it is off, don't enumerate the io-apics with ACPI. | |
1180 | * If MPS is present, it will handle them, | |
1181 | * otherwise the system will stay in PIC mode | |
1182 | */ | |
6b2b171a | 1183 | if (acpi_disabled || acpi_noirq) |
1da177e4 | 1184 | return -ENODEV; |
1da177e4 | 1185 | |
93984fbd | 1186 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
d3b6a349 AK |
1187 | return -ENODEV; |
1188 | ||
1da177e4 | 1189 | /* |
4be44fcd | 1190 | * if "noapic" boot option, don't look for IO-APICs |
1da177e4 LT |
1191 | */ |
1192 | if (skip_ioapic_setup) { | |
1193 | printk(KERN_INFO PREFIX "Skipping IOAPIC probe " | |
4be44fcd | 1194 | "due to 'noapic' option.\n"); |
1da177e4 LT |
1195 | return -ENODEV; |
1196 | } | |
1197 | ||
e819813f JL |
1198 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_IO_APIC, acpi_parse_ioapic, |
1199 | MAX_IO_APICS); | |
1da177e4 LT |
1200 | if (!count) { |
1201 | printk(KERN_ERR PREFIX "No IOAPIC entries present\n"); | |
1202 | return -ENODEV; | |
4be44fcd | 1203 | } else if (count < 0) { |
1da177e4 LT |
1204 | printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n"); |
1205 | return count; | |
1206 | } | |
1207 | ||
e819813f JL |
1208 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_INTERRUPT_OVERRIDE, |
1209 | acpi_parse_int_src_ovr, nr_irqs); | |
1da177e4 | 1210 | if (count < 0) { |
4be44fcd LB |
1211 | printk(KERN_ERR PREFIX |
1212 | "Error parsing interrupt source overrides entry\n"); | |
1da177e4 LT |
1213 | /* TBD: Cleanup to allow fallback to MPS */ |
1214 | return count; | |
1215 | } | |
1216 | ||
1217 | /* | |
1218 | * If BIOS did not supply an INT_SRC_OVR for the SCI | |
1219 | * pretend we got one so we can set the SCI flags. | |
7c7bcfea | 1220 | * But ignore setting up SCI on hardware reduced platforms. |
1da177e4 | 1221 | */ |
7c7bcfea | 1222 | if (acpi_sci_override_gsi == INVALID_ACPI_IRQ && !acpi_gbl_reduced_hardware) |
9d2062b8 EB |
1223 | acpi_sci_ioapic_setup(acpi_gbl_FADT.sci_interrupt, 0, 0, |
1224 | acpi_gbl_FADT.sci_interrupt); | |
1da177e4 | 1225 | |
af901ca1 | 1226 | /* Fill in identity legacy mappings where no override */ |
1da177e4 LT |
1227 | mp_config_acpi_legacy_irqs(); |
1228 | ||
e819813f JL |
1229 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_NMI_SOURCE, |
1230 | acpi_parse_nmi_src, nr_irqs); | |
1da177e4 LT |
1231 | if (count < 0) { |
1232 | printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n"); | |
1233 | /* TBD: Cleanup to allow fallback to MPS */ | |
1234 | return count; | |
1235 | } | |
1236 | ||
1237 | return 0; | |
1238 | } | |
1239 | #else | |
1240 | static inline int acpi_parse_madt_ioapic_entries(void) | |
1241 | { | |
1242 | return -1; | |
1243 | } | |
8466361a | 1244 | #endif /* !CONFIG_X86_IO_APIC */ |
1da177e4 | 1245 | |
cbf9bd60 YL |
1246 | static void __init early_acpi_process_madt(void) |
1247 | { | |
1248 | #ifdef CONFIG_X86_LOCAL_APIC | |
1249 | int error; | |
1250 | ||
1251 | if (!acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) { | |
1252 | ||
1253 | /* | |
1254 | * Parse MADT LAPIC entries | |
1255 | */ | |
1256 | error = early_acpi_parse_madt_lapic_addr_ovr(); | |
1257 | if (!error) { | |
1258 | acpi_lapic = 1; | |
1259 | smp_found_config = 1; | |
1260 | } | |
1261 | if (error == -EINVAL) { | |
1262 | /* | |
1263 | * Dell Precision Workstation 410, 610 come here. | |
1264 | */ | |
1265 | printk(KERN_ERR PREFIX | |
1266 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1267 | disable_acpi(); | |
1268 | } | |
1269 | } | |
1270 | #endif | |
1271 | } | |
1272 | ||
4be44fcd | 1273 | static void __init acpi_process_madt(void) |
1da177e4 LT |
1274 | { |
1275 | #ifdef CONFIG_X86_LOCAL_APIC | |
7f8f97c3 | 1276 | int error; |
1da177e4 | 1277 | |
7f8f97c3 | 1278 | if (!acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) { |
1da177e4 LT |
1279 | |
1280 | /* | |
1281 | * Parse MADT LAPIC entries | |
1282 | */ | |
1283 | error = acpi_parse_madt_lapic_entries(); | |
1284 | if (!error) { | |
1285 | acpi_lapic = 1; | |
1286 | ||
1287 | /* | |
1288 | * Parse MADT IO-APIC entries | |
1289 | */ | |
5da2fd26 | 1290 | mutex_lock(&acpi_ioapic_lock); |
1da177e4 | 1291 | error = acpi_parse_madt_ioapic_entries(); |
5da2fd26 | 1292 | mutex_unlock(&acpi_ioapic_lock); |
1da177e4 | 1293 | if (!error) { |
2f065aef | 1294 | acpi_set_irq_model_ioapic(); |
1da177e4 LT |
1295 | |
1296 | smp_found_config = 1; | |
1da177e4 LT |
1297 | } |
1298 | } | |
1299 | if (error == -EINVAL) { | |
1300 | /* | |
1301 | * Dell Precision Workstation 410, 610 come here. | |
1302 | */ | |
4be44fcd LB |
1303 | printk(KERN_ERR PREFIX |
1304 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1da177e4 LT |
1305 | disable_acpi(); |
1306 | } | |
7b37b5fd LB |
1307 | } else { |
1308 | /* | |
1309 | * ACPI found no MADT, and so ACPI wants UP PIC mode. | |
1310 | * In the event an MPS table was found, forget it. | |
1311 | * Boot with "acpi=off" to use MPS on such a system. | |
1312 | */ | |
1313 | if (smp_found_config) { | |
1314 | printk(KERN_WARNING PREFIX | |
1315 | "No APIC-table, disabling MPS\n"); | |
1316 | smp_found_config = 0; | |
1317 | } | |
1da177e4 | 1318 | } |
69b88afa YL |
1319 | |
1320 | /* | |
1321 | * ACPI supports both logical (e.g. Hyper-Threading) and physical | |
1322 | * processors, where MPS only supports physical. | |
1323 | */ | |
1324 | if (acpi_lapic && acpi_ioapic) | |
1325 | printk(KERN_INFO "Using ACPI (MADT) for SMP configuration " | |
1326 | "information\n"); | |
1327 | else if (acpi_lapic) | |
1328 | printk(KERN_INFO "Using ACPI for processor (LAPIC) " | |
1329 | "configuration information\n"); | |
1da177e4 LT |
1330 | #endif |
1331 | return; | |
1332 | } | |
1333 | ||
1855256c | 1334 | static int __init disable_acpi_irq(const struct dmi_system_id *d) |
aea00143 AP |
1335 | { |
1336 | if (!acpi_force) { | |
1337 | printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n", | |
1338 | d->ident); | |
1339 | acpi_noirq_set(); | |
1340 | } | |
1341 | return 0; | |
1342 | } | |
1343 | ||
1855256c | 1344 | static int __init disable_acpi_pci(const struct dmi_system_id *d) |
aea00143 AP |
1345 | { |
1346 | if (!acpi_force) { | |
1347 | printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n", | |
1348 | d->ident); | |
1349 | acpi_disable_pci(); | |
1350 | } | |
1351 | return 0; | |
1352 | } | |
aea00143 | 1353 | |
1855256c | 1354 | static int __init dmi_disable_acpi(const struct dmi_system_id *d) |
aea00143 AP |
1355 | { |
1356 | if (!acpi_force) { | |
4be44fcd | 1357 | printk(KERN_NOTICE "%s detected: acpi off\n", d->ident); |
aea00143 AP |
1358 | disable_acpi(); |
1359 | } else { | |
1360 | printk(KERN_NOTICE | |
1361 | "Warning: DMI blacklist says broken, but acpi forced\n"); | |
1362 | } | |
1363 | return 0; | |
1364 | } | |
1365 | ||
e2079c43 | 1366 | /* |
ae10ccdc | 1367 | * Force ignoring BIOS IRQ0 override |
e2079c43 RW |
1368 | */ |
1369 | static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d) | |
1370 | { | |
8d89adf4 | 1371 | if (!acpi_skip_timer_override) { |
ae10ccdc | 1372 | pr_notice("%s detected: Ignoring BIOS IRQ0 override\n", |
8d89adf4 IM |
1373 | d->ident); |
1374 | acpi_skip_timer_override = 1; | |
1375 | } | |
e2079c43 RW |
1376 | return 0; |
1377 | } | |
1378 | ||
7486341a LA |
1379 | /* |
1380 | * ACPI offers an alternative platform interface model that removes | |
1381 | * ACPI hardware requirements for platforms that do not implement | |
1382 | * the PC Architecture. | |
1383 | * | |
1384 | * We initialize the Hardware-reduced ACPI model here: | |
1385 | */ | |
50beba07 AS |
1386 | void __init acpi_generic_reduced_hw_init(void) |
1387 | { | |
1388 | /* | |
1389 | * Override x86_init functions and bypass legacy PIC in | |
1390 | * hardware reduced ACPI mode. | |
1391 | */ | |
1392 | x86_init.timers.timer_init = x86_init_noop; | |
1393 | x86_init.irqs.pre_vector_init = x86_init_noop; | |
1394 | legacy_pic = &null_legacy_pic; | |
1395 | } | |
1396 | ||
7486341a LA |
1397 | static void __init acpi_reduced_hw_init(void) |
1398 | { | |
50beba07 | 1399 | if (acpi_gbl_reduced_hardware) |
81b53e5f | 1400 | x86_init.acpi.reduced_hw_early_init(); |
7486341a LA |
1401 | } |
1402 | ||
aea00143 AP |
1403 | /* |
1404 | * If your system is blacklisted here, but you find that acpi=force | |
5b4c0b6f | 1405 | * works for you, please contact linux-acpi@vger.kernel.org |
aea00143 | 1406 | */ |
6faadbbb | 1407 | static const struct dmi_system_id acpi_dmi_table[] __initconst = { |
aea00143 AP |
1408 | /* |
1409 | * Boxes that need ACPI disabled | |
1410 | */ | |
1411 | { | |
4be44fcd LB |
1412 | .callback = dmi_disable_acpi, |
1413 | .ident = "IBM Thinkpad", | |
1414 | .matches = { | |
1415 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1416 | DMI_MATCH(DMI_BOARD_NAME, "2629H1G"), | |
1417 | }, | |
1418 | }, | |
aea00143 | 1419 | |
aea00143 AP |
1420 | /* |
1421 | * Boxes that need ACPI PCI IRQ routing disabled | |
1422 | */ | |
1423 | { | |
4be44fcd LB |
1424 | .callback = disable_acpi_irq, |
1425 | .ident = "ASUS A7V", | |
1426 | .matches = { | |
1427 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"), | |
1428 | DMI_MATCH(DMI_BOARD_NAME, "<A7V>"), | |
1429 | /* newer BIOS, Revision 1011, does work */ | |
1430 | DMI_MATCH(DMI_BIOS_VERSION, | |
1431 | "ASUS A7V ACPI BIOS Revision 1007"), | |
1432 | }, | |
1433 | }, | |
74586fca LB |
1434 | { |
1435 | /* | |
1436 | * Latest BIOS for IBM 600E (1.16) has bad pcinum | |
1437 | * for LPC bridge, which is needed for the PCI | |
1438 | * interrupt links to work. DSDT fix is in bug 5966. | |
1439 | * 2645, 2646 model numbers are shared with 600/600E/600X | |
1440 | */ | |
1441 | .callback = disable_acpi_irq, | |
1442 | .ident = "IBM Thinkpad 600 Series 2645", | |
1443 | .matches = { | |
1444 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1445 | DMI_MATCH(DMI_BOARD_NAME, "2645"), | |
1446 | }, | |
1447 | }, | |
1448 | { | |
1449 | .callback = disable_acpi_irq, | |
1450 | .ident = "IBM Thinkpad 600 Series 2646", | |
1451 | .matches = { | |
1452 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1453 | DMI_MATCH(DMI_BOARD_NAME, "2646"), | |
1454 | }, | |
1455 | }, | |
aea00143 AP |
1456 | /* |
1457 | * Boxes that need ACPI PCI IRQ routing and PCI scan disabled | |
1458 | */ | |
4be44fcd LB |
1459 | { /* _BBN 0 bug */ |
1460 | .callback = disable_acpi_pci, | |
1461 | .ident = "ASUS PR-DLS", | |
1462 | .matches = { | |
1463 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1464 | DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"), | |
1465 | DMI_MATCH(DMI_BIOS_VERSION, | |
1466 | "ASUS PR-DLS ACPI BIOS Revision 1010"), | |
1467 | DMI_MATCH(DMI_BIOS_DATE, "03/21/2003") | |
1468 | }, | |
1469 | }, | |
aea00143 | 1470 | { |
4be44fcd LB |
1471 | .callback = disable_acpi_pci, |
1472 | .ident = "Acer TravelMate 36x Laptop", | |
1473 | .matches = { | |
1474 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
1475 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), | |
1476 | }, | |
1477 | }, | |
35af2821 AH |
1478 | {} |
1479 | }; | |
1480 | ||
1481 | /* second table for DMI checks that should run after early-quirks */ | |
6faadbbb | 1482 | static const struct dmi_system_id acpi_dmi_table_late[] __initconst = { |
e2079c43 RW |
1483 | /* |
1484 | * HP laptops which use a DSDT reporting as HP/SB400/10000, | |
1485 | * which includes some code which overrides all temperature | |
1486 | * trip points to 16C if the INTIN2 input of the I/O APIC | |
1487 | * is enabled. This input is incorrectly designated the | |
1488 | * ISA IRQ 0 via an interrupt source override even though | |
1489 | * it is wired to the output of the master 8259A and INTIN0 | |
ae10ccdc | 1490 | * is not connected at all. Force ignoring BIOS IRQ0 |
e2079c43 RW |
1491 | * override in that cases. |
1492 | */ | |
e84956f9 RW |
1493 | { |
1494 | .callback = dmi_ignore_irq0_timer_override, | |
1495 | .ident = "HP nx6115 laptop", | |
1496 | .matches = { | |
1497 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1498 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6115"), | |
1499 | }, | |
1500 | }, | |
e2079c43 RW |
1501 | { |
1502 | .callback = dmi_ignore_irq0_timer_override, | |
1503 | .ident = "HP NX6125 laptop", | |
1504 | .matches = { | |
1505 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1506 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6125"), | |
1507 | }, | |
1508 | }, | |
1509 | { | |
1510 | .callback = dmi_ignore_irq0_timer_override, | |
1511 | .ident = "HP NX6325 laptop", | |
1512 | .matches = { | |
1513 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1514 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6325"), | |
1515 | }, | |
1516 | }, | |
e84956f9 RW |
1517 | { |
1518 | .callback = dmi_ignore_irq0_timer_override, | |
1519 | .ident = "HP 6715b laptop", | |
1520 | .matches = { | |
1521 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1522 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"), | |
1523 | }, | |
1524 | }, | |
f6b54f08 FT |
1525 | { |
1526 | .callback = dmi_ignore_irq0_timer_override, | |
1527 | .ident = "FUJITSU SIEMENS", | |
1528 | .matches = { | |
1529 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), | |
1530 | DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"), | |
1531 | }, | |
1532 | }, | |
4be44fcd | 1533 | {} |
aea00143 AP |
1534 | }; |
1535 | ||
1da177e4 LT |
1536 | /* |
1537 | * acpi_boot_table_init() and acpi_boot_init() | |
1538 | * called from setup_arch(), always. | |
1539 | * 1. checksums all tables | |
1540 | * 2. enumerates lapics | |
1541 | * 3. enumerates io-apics | |
1542 | * | |
1543 | * acpi_table_init() is separate to allow reading SRAT without | |
1544 | * other side effects. | |
1545 | * | |
1546 | * side effects of acpi_boot_init: | |
1547 | * acpi_lapic = 1 if LAPIC found | |
1548 | * acpi_ioapic = 1 if IOAPIC found | |
1549 | * if (acpi_lapic && acpi_ioapic) smp_found_config = 1; | |
1550 | * if acpi_blacklisted() acpi_disabled = 1; | |
1551 | * acpi_irq_model=... | |
1552 | * ... | |
1da177e4 LT |
1553 | */ |
1554 | ||
8558e394 | 1555 | void __init acpi_boot_table_init(void) |
1da177e4 | 1556 | { |
aea00143 | 1557 | dmi_check_system(acpi_dmi_table); |
aea00143 | 1558 | |
1da177e4 LT |
1559 | /* |
1560 | * If acpi_disabled, bail out | |
1da177e4 | 1561 | */ |
68ca4069 | 1562 | if (acpi_disabled) |
0f61aaa4 | 1563 | return; |
1da177e4 | 1564 | |
5f3b1a8b | 1565 | /* |
1da177e4 LT |
1566 | * Initialize the ACPI boot-time table parser. |
1567 | */ | |
8558e394 | 1568 | if (acpi_table_init()) { |
1da177e4 | 1569 | disable_acpi(); |
8558e394 | 1570 | return; |
1da177e4 | 1571 | } |
1da177e4 | 1572 | |
5f3b1a8b | 1573 | acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf); |
1da177e4 LT |
1574 | |
1575 | /* | |
1576 | * blacklist may disable ACPI entirely | |
1577 | */ | |
8558e394 | 1578 | if (acpi_blacklisted()) { |
1da177e4 LT |
1579 | if (acpi_force) { |
1580 | printk(KERN_WARNING PREFIX "acpi=force override\n"); | |
1581 | } else { | |
1582 | printk(KERN_WARNING PREFIX "Disabling ACPI support\n"); | |
1583 | disable_acpi(); | |
8558e394 | 1584 | return; |
1da177e4 LT |
1585 | } |
1586 | } | |
cbf9bd60 YL |
1587 | } |
1588 | ||
1589 | int __init early_acpi_boot_init(void) | |
1590 | { | |
1591 | /* | |
1592 | * If acpi_disabled, bail out | |
cbf9bd60 | 1593 | */ |
68ca4069 | 1594 | if (acpi_disabled) |
cbf9bd60 YL |
1595 | return 1; |
1596 | ||
1597 | /* | |
1598 | * Process the Multiple APIC Description Table (MADT), if present | |
1599 | */ | |
1600 | early_acpi_process_madt(); | |
1da177e4 | 1601 | |
7486341a LA |
1602 | /* |
1603 | * Hardware-reduced ACPI mode initialization: | |
1604 | */ | |
1605 | acpi_reduced_hw_init(); | |
1606 | ||
1da177e4 LT |
1607 | return 0; |
1608 | } | |
1609 | ||
1da177e4 LT |
1610 | int __init acpi_boot_init(void) |
1611 | { | |
35af2821 AH |
1612 | /* those are executed after early-quirks are executed */ |
1613 | dmi_check_system(acpi_dmi_table_late); | |
1614 | ||
1da177e4 LT |
1615 | /* |
1616 | * If acpi_disabled, bail out | |
1da177e4 | 1617 | */ |
68ca4069 | 1618 | if (acpi_disabled) |
4be44fcd | 1619 | return 1; |
1da177e4 | 1620 | |
5f3b1a8b | 1621 | acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf); |
1da177e4 LT |
1622 | |
1623 | /* | |
1624 | * set sci_int and PM timer address | |
1625 | */ | |
ceb6c468 | 1626 | acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt); |
1da177e4 LT |
1627 | |
1628 | /* | |
1629 | * Process the Multiple APIC Description Table (MADT), if present | |
1630 | */ | |
1631 | acpi_process_madt(); | |
1632 | ||
5f3b1a8b | 1633 | acpi_table_parse(ACPI_SIG_HPET, acpi_parse_hpet); |
7b0a9114 DY |
1634 | if (IS_ENABLED(CONFIG_ACPI_BGRT)) |
1635 | acpi_table_parse(ACPI_SIG_BGRT, acpi_parse_bgrt); | |
1da177e4 | 1636 | |
b72d0db9 TG |
1637 | if (!acpi_noirq) |
1638 | x86_init.pci.init = pci_acpi_init; | |
1639 | ||
0231d000 PB |
1640 | /* Do not enable ACPI SPCR console by default */ |
1641 | acpi_parse_spcr(earlycon_acpi_spcr_enable, false); | |
1da177e4 LT |
1642 | return 0; |
1643 | } | |
1a3f239d RR |
1644 | |
1645 | static int __init parse_acpi(char *arg) | |
1646 | { | |
1647 | if (!arg) | |
1648 | return -EINVAL; | |
1649 | ||
1650 | /* "acpi=off" disables both ACPI table parsing and interpreter */ | |
1651 | if (strcmp(arg, "off") == 0) { | |
1652 | disable_acpi(); | |
1653 | } | |
1654 | /* acpi=force to over-ride black-list */ | |
1655 | else if (strcmp(arg, "force") == 0) { | |
1656 | acpi_force = 1; | |
1a3f239d RR |
1657 | acpi_disabled = 0; |
1658 | } | |
1659 | /* acpi=strict disables out-of-spec workarounds */ | |
1660 | else if (strcmp(arg, "strict") == 0) { | |
1661 | acpi_strict = 1; | |
1662 | } | |
237889bf ZY |
1663 | /* acpi=rsdt use RSDT instead of XSDT */ |
1664 | else if (strcmp(arg, "rsdt") == 0) { | |
fab46105 | 1665 | acpi_gbl_do_not_use_xsdt = TRUE; |
237889bf | 1666 | } |
1a3f239d RR |
1667 | /* "acpi=noirq" disables ACPI interrupt routing */ |
1668 | else if (strcmp(arg, "noirq") == 0) { | |
1669 | acpi_noirq_set(); | |
aa2110cb LM |
1670 | } |
1671 | /* "acpi=copy_dsdt" copys DSDT */ | |
1672 | else if (strcmp(arg, "copy_dsdt") == 0) { | |
1673 | acpi_gbl_copy_dsdt_locally = 1; | |
9ad95879 NR |
1674 | } |
1675 | /* "acpi=nocmcff" disables FF mode for corrected errors */ | |
1676 | else if (strcmp(arg, "nocmcff") == 0) { | |
1677 | acpi_disable_cmcff = 1; | |
1a3f239d RR |
1678 | } else { |
1679 | /* Core will printk when we return error. */ | |
1680 | return -EINVAL; | |
1681 | } | |
1682 | return 0; | |
1683 | } | |
1684 | early_param("acpi", parse_acpi); | |
1685 | ||
1686 | /* FIXME: Using pci= for an ACPI parameter is a travesty. */ | |
1687 | static int __init parse_pci(char *arg) | |
1688 | { | |
1689 | if (arg && strcmp(arg, "noacpi") == 0) | |
1690 | acpi_disable_pci(); | |
1691 | return 0; | |
1692 | } | |
1693 | early_param("pci", parse_pci); | |
1694 | ||
3c999f14 YL |
1695 | int __init acpi_mps_check(void) |
1696 | { | |
1697 | #if defined(CONFIG_X86_LOCAL_APIC) && !defined(CONFIG_X86_MPPARSE) | |
1698 | /* mptable code is not built-in*/ | |
1699 | if (acpi_disabled || acpi_noirq) { | |
1700 | printk(KERN_WARNING "MPS support code is not built-in.\n" | |
1701 | "Using acpi=off or acpi=noirq or pci=noacpi " | |
1702 | "may have problem\n"); | |
1703 | return 1; | |
1704 | } | |
1705 | #endif | |
1706 | return 0; | |
1707 | } | |
1708 | ||
1a3f239d RR |
1709 | #ifdef CONFIG_X86_IO_APIC |
1710 | static int __init parse_acpi_skip_timer_override(char *arg) | |
1711 | { | |
1712 | acpi_skip_timer_override = 1; | |
1713 | return 0; | |
1714 | } | |
1715 | early_param("acpi_skip_timer_override", parse_acpi_skip_timer_override); | |
fa18f477 AK |
1716 | |
1717 | static int __init parse_acpi_use_timer_override(char *arg) | |
1718 | { | |
1719 | acpi_use_timer_override = 1; | |
1720 | return 0; | |
1721 | } | |
1722 | early_param("acpi_use_timer_override", parse_acpi_use_timer_override); | |
1a3f239d RR |
1723 | #endif /* CONFIG_X86_IO_APIC */ |
1724 | ||
1725 | static int __init setup_acpi_sci(char *s) | |
1726 | { | |
1727 | if (!s) | |
1728 | return -EINVAL; | |
1729 | if (!strcmp(s, "edge")) | |
5f3b1a8b AS |
1730 | acpi_sci_flags = ACPI_MADT_TRIGGER_EDGE | |
1731 | (acpi_sci_flags & ~ACPI_MADT_TRIGGER_MASK); | |
1a3f239d | 1732 | else if (!strcmp(s, "level")) |
5f3b1a8b AS |
1733 | acpi_sci_flags = ACPI_MADT_TRIGGER_LEVEL | |
1734 | (acpi_sci_flags & ~ACPI_MADT_TRIGGER_MASK); | |
1a3f239d | 1735 | else if (!strcmp(s, "high")) |
5f3b1a8b AS |
1736 | acpi_sci_flags = ACPI_MADT_POLARITY_ACTIVE_HIGH | |
1737 | (acpi_sci_flags & ~ACPI_MADT_POLARITY_MASK); | |
1a3f239d | 1738 | else if (!strcmp(s, "low")) |
5f3b1a8b AS |
1739 | acpi_sci_flags = ACPI_MADT_POLARITY_ACTIVE_LOW | |
1740 | (acpi_sci_flags & ~ACPI_MADT_POLARITY_MASK); | |
1a3f239d RR |
1741 | else |
1742 | return -EINVAL; | |
1743 | return 0; | |
1744 | } | |
1745 | early_param("acpi_sci", setup_acpi_sci); | |
d0a9081b AM |
1746 | |
1747 | int __acpi_acquire_global_lock(unsigned int *lock) | |
1748 | { | |
1749 | unsigned int old, new, val; | |
1750 | do { | |
1751 | old = *lock; | |
1752 | new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1)); | |
1753 | val = cmpxchg(lock, old, new); | |
1754 | } while (unlikely (val != old)); | |
1755 | return (new < 3) ? -1 : 0; | |
1756 | } | |
1757 | ||
1758 | int __acpi_release_global_lock(unsigned int *lock) | |
1759 | { | |
1760 | unsigned int old, new, val; | |
1761 | do { | |
1762 | old = *lock; | |
1763 | new = old & ~0x3; | |
1764 | val = cmpxchg(lock, old, new); | |
1765 | } while (unlikely (val != old)); | |
1766 | return old & 0x1; | |
1767 | } | |
8e30524d TR |
1768 | |
1769 | void __init arch_reserve_mem_area(acpi_physical_address addr, size_t size) | |
1770 | { | |
09821ff1 | 1771 | e820__range_add(addr, size, E820_TYPE_ACPI); |
6464d294 | 1772 | e820__update_table_print(); |
8e30524d | 1773 | } |