Commit | Line | Data |
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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> |
57c8a661 | 35 | #include <linux/memblock.h> |
f0f4c343 | 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> |
e7b66d16 | 51 | #include <asm/setup.h> |
1da177e4 | 52 | |
d6a77ead | 53 | #include "sleep.h" /* To include x86_acpi_suspend_lowlevel */ |
e8924acb | 54 | static int __initdata acpi_force = 0; |
c636f753 | 55 | int acpi_disabled; |
df3bb57d AK |
56 | EXPORT_SYMBOL(acpi_disabled); |
57 | ||
1da177e4 | 58 | #ifdef CONFIG_X86_64 |
1dcdd3d1 | 59 | # include <asm/proto.h> |
4be44fcd | 60 | #endif /* X86 */ |
1da177e4 | 61 | |
1da177e4 LT |
62 | #define PREFIX "ACPI: " |
63 | ||
90d53909 | 64 | int acpi_noirq; /* skip ACPI IRQ initialization */ |
6e4be1ff YL |
65 | int acpi_pci_disabled; /* skip ACPI PCI scan and IRQ initialization */ |
66 | EXPORT_SYMBOL(acpi_pci_disabled); | |
1da177e4 LT |
67 | |
68 | int acpi_lapic; | |
69 | int acpi_ioapic; | |
70 | int acpi_strict; | |
9ad95879 | 71 | int acpi_disable_cmcff; |
1da177e4 | 72 | |
4565c4f6 | 73 | /* ACPI SCI override configuration */ |
5f3b1a8b | 74 | u8 acpi_sci_flags __initdata; |
4565c4f6 | 75 | u32 acpi_sci_override_gsi __initdata = INVALID_ACPI_IRQ; |
1da177e4 | 76 | int acpi_skip_timer_override __initdata; |
fa18f477 | 77 | int acpi_use_timer_override __initdata; |
7f74f8f2 | 78 | int acpi_fix_pin2_polarity __initdata; |
1da177e4 LT |
79 | |
80 | #ifdef CONFIG_X86_LOCAL_APIC | |
81 | static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; | |
82 | #endif | |
83 | ||
d2d9c4a3 | 84 | #ifdef CONFIG_X86_IO_APIC |
5da2fd26 JL |
85 | /* |
86 | * Locks related to IOAPIC hotplug | |
87 | * Hotplug side: | |
88 | * ->device_hotplug_lock | |
89 | * ->acpi_ioapic_lock | |
90 | * ->ioapic_lock | |
91 | * Interrupt mapping side: | |
92 | * ->acpi_ioapic_lock | |
93 | * ->ioapic_mutex | |
94 | * ->ioapic_lock | |
95 | */ | |
96 | static DEFINE_MUTEX(acpi_ioapic_lock); | |
d2d9c4a3 | 97 | #endif |
5da2fd26 | 98 | |
1da177e4 LT |
99 | /* -------------------------------------------------------------------------- |
100 | Boot-time Configuration | |
101 | -------------------------------------------------------------------------- */ | |
102 | ||
103 | /* | |
104 | * The default interrupt routing model is PIC (8259). This gets | |
27b46d76 | 105 | * overridden if IOAPICs are enumerated (below). |
1da177e4 | 106 | */ |
4be44fcd | 107 | enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC; |
1da177e4 | 108 | |
1da177e4 | 109 | |
988856ee EB |
110 | /* |
111 | * ISA irqs by default are the first 16 gsis but can be | |
112 | * any gsi as specified by an interrupt source override. | |
113 | */ | |
114 | static u32 isa_irq_to_gsi[NR_IRQS_LEGACY] __read_mostly = { | |
115 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 | |
116 | }; | |
117 | ||
1da177e4 | 118 | /* |
f7750a79 | 119 | * This is just a simple wrapper around early_memremap(), |
45f1330a | 120 | * with sanity checks for phys == 0 and size == 0. |
1da177e4 | 121 | */ |
6c9a58e8 | 122 | void __init __iomem *__acpi_map_table(unsigned long phys, unsigned long size) |
1da177e4 | 123 | { |
1da177e4 | 124 | |
f34fa82b YL |
125 | if (!phys || !size) |
126 | return NULL; | |
127 | ||
f7750a79 | 128 | return early_memremap(phys, size); |
7d97277b | 129 | } |
45f1330a | 130 | |
6c9a58e8 | 131 | void __init __acpi_unmap_table(void __iomem *map, unsigned long size) |
7d97277b YL |
132 | { |
133 | if (!map || !size) | |
134 | return; | |
1da177e4 | 135 | |
f7750a79 | 136 | early_memunmap(map, size); |
1da177e4 | 137 | } |
1da177e4 | 138 | |
1da177e4 | 139 | #ifdef CONFIG_X86_LOCAL_APIC |
15a58ed1 | 140 | static int __init acpi_parse_madt(struct acpi_table_header *table) |
1da177e4 | 141 | { |
4be44fcd | 142 | struct acpi_table_madt *madt = NULL; |
1da177e4 | 143 | |
93984fbd | 144 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
1da177e4 LT |
145 | return -EINVAL; |
146 | ||
15a58ed1 | 147 | madt = (struct acpi_table_madt *)table; |
1da177e4 LT |
148 | if (!madt) { |
149 | printk(KERN_WARNING PREFIX "Unable to map MADT\n"); | |
150 | return -ENODEV; | |
151 | } | |
152 | ||
ad363f80 AS |
153 | if (madt->address) { |
154 | acpi_lapic_addr = (u64) madt->address; | |
1da177e4 LT |
155 | |
156 | printk(KERN_DEBUG PREFIX "Local APIC address 0x%08x\n", | |
ad363f80 | 157 | madt->address); |
1da177e4 LT |
158 | } |
159 | ||
306db03b IM |
160 | default_acpi_madt_oem_check(madt->header.oem_id, |
161 | madt->header.oem_table_id); | |
4be44fcd | 162 | |
1da177e4 LT |
163 | return 0; |
164 | } | |
165 | ||
7e1f85f9 JL |
166 | /** |
167 | * acpi_register_lapic - register a local apic and generates a logic cpu number | |
168 | * @id: local apic id to register | |
3e9e57fa | 169 | * @acpiid: ACPI id to register |
7e1f85f9 JL |
170 | * @enabled: this cpu is enabled or not |
171 | * | |
172 | * Returns the logic cpu number which maps to the local apic | |
173 | */ | |
3e9e57fa | 174 | static int acpi_register_lapic(int id, u32 acpiid, u8 enabled) |
dfac2189 | 175 | { |
fb3bbd6a | 176 | unsigned int ver = 0; |
3e9e57fa | 177 | int cpu; |
fb3bbd6a | 178 | |
82982d72 | 179 | if (id >= MAX_LOCAL_APIC) { |
d3bd0588 | 180 | printk(KERN_INFO PREFIX "skipped apicid that is too big\n"); |
7e1f85f9 | 181 | return -EINVAL; |
d3bd0588 YL |
182 | } |
183 | ||
2b85b3d2 DL |
184 | if (!enabled) { |
185 | ++disabled_cpus; | |
186 | return -EINVAL; | |
187 | } | |
188 | ||
fb3bbd6a | 189 | if (boot_cpu_physical_apicid != -1U) |
cff9ab2b | 190 | ver = boot_cpu_apic_version; |
fb3bbd6a | 191 | |
2b85b3d2 | 192 | cpu = generic_processor_info(id, ver); |
3e9e57fa VK |
193 | if (cpu >= 0) |
194 | early_per_cpu(x86_cpu_to_acpiid, cpu) = acpiid; | |
195 | ||
196 | return cpu; | |
dfac2189 AS |
197 | } |
198 | ||
7237d3de SS |
199 | static int __init |
200 | acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end) | |
201 | { | |
202 | struct acpi_madt_local_x2apic *processor = NULL; | |
861a6ee8 | 203 | #ifdef CONFIG_X86_X2APIC |
a774635d | 204 | u32 apic_id; |
a35fd282 | 205 | u8 enabled; |
861a6ee8 | 206 | #endif |
7237d3de SS |
207 | |
208 | processor = (struct acpi_madt_local_x2apic *)header; | |
209 | ||
210 | if (BAD_MADT_ENTRY(processor, end)) | |
211 | return -EINVAL; | |
212 | ||
213 | acpi_table_print_madt_entry(header); | |
214 | ||
861a6ee8 | 215 | #ifdef CONFIG_X86_X2APIC |
a35fd282 YL |
216 | apic_id = processor->local_apic_id; |
217 | enabled = processor->lapic_flags & ACPI_MADT_ENABLED; | |
861a6ee8 | 218 | |
10daf10a DL |
219 | /* Ignore invalid ID */ |
220 | if (apic_id == 0xffffffff) | |
221 | return 0; | |
222 | ||
7237d3de SS |
223 | /* |
224 | * We need to register disabled CPU as well to permit | |
225 | * counting disabled CPUs. This allows us to size | |
226 | * cpus_possible_map more accurately, to permit | |
227 | * to not preallocating memory for all NR_CPUS | |
228 | * when we use CPU hotplug. | |
229 | */ | |
a774635d LR |
230 | if (!apic->apic_id_valid(apic_id)) { |
231 | if (enabled) | |
232 | pr_warn(PREFIX "x2apic entry ignored\n"); | |
233 | return 0; | |
234 | } | |
235 | ||
236 | acpi_register_lapic(apic_id, processor->uid, enabled); | |
7237d3de SS |
237 | #else |
238 | printk(KERN_WARNING PREFIX "x2apic entry ignored\n"); | |
239 | #endif | |
240 | ||
241 | return 0; | |
242 | } | |
243 | ||
1da177e4 | 244 | static int __init |
5f3b1a8b | 245 | acpi_parse_lapic(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 246 | { |
5f3b1a8b | 247 | struct acpi_madt_local_apic *processor = NULL; |
1da177e4 | 248 | |
5f3b1a8b | 249 | processor = (struct acpi_madt_local_apic *)header; |
1da177e4 LT |
250 | |
251 | if (BAD_MADT_ENTRY(processor, end)) | |
252 | return -EINVAL; | |
253 | ||
254 | acpi_table_print_madt_entry(header); | |
255 | ||
f3bf1dbe TG |
256 | /* Ignore invalid ID */ |
257 | if (processor->id == 0xff) | |
258 | return 0; | |
259 | ||
7f66ae48 AR |
260 | /* |
261 | * We need to register disabled CPU as well to permit | |
262 | * counting disabled CPUs. This allows us to size | |
263 | * cpus_possible_map more accurately, to permit | |
264 | * to not preallocating memory for all NR_CPUS | |
265 | * when we use CPU hotplug. | |
266 | */ | |
dfac2189 | 267 | acpi_register_lapic(processor->id, /* APIC ID */ |
3e9e57fa | 268 | processor->processor_id, /* ACPI ID */ |
dfac2189 | 269 | processor->lapic_flags & ACPI_MADT_ENABLED); |
1da177e4 LT |
270 | |
271 | return 0; | |
272 | } | |
273 | ||
ac049c1d JS |
274 | static int __init |
275 | acpi_parse_sapic(struct acpi_subtable_header *header, const unsigned long end) | |
276 | { | |
277 | struct acpi_madt_local_sapic *processor = NULL; | |
278 | ||
279 | processor = (struct acpi_madt_local_sapic *)header; | |
280 | ||
281 | if (BAD_MADT_ENTRY(processor, end)) | |
282 | return -EINVAL; | |
283 | ||
284 | acpi_table_print_madt_entry(header); | |
285 | ||
dfac2189 | 286 | acpi_register_lapic((processor->id << 8) | processor->eid,/* APIC ID */ |
3e9e57fa | 287 | processor->processor_id, /* ACPI ID */ |
dfac2189 | 288 | processor->lapic_flags & ACPI_MADT_ENABLED); |
ac049c1d JS |
289 | |
290 | return 0; | |
291 | } | |
292 | ||
1da177e4 | 293 | static int __init |
5f3b1a8b | 294 | acpi_parse_lapic_addr_ovr(struct acpi_subtable_header * header, |
4be44fcd | 295 | const unsigned long end) |
1da177e4 | 296 | { |
5f3b1a8b | 297 | struct acpi_madt_local_apic_override *lapic_addr_ovr = NULL; |
1da177e4 | 298 | |
5f3b1a8b | 299 | lapic_addr_ovr = (struct acpi_madt_local_apic_override *)header; |
1da177e4 LT |
300 | |
301 | if (BAD_MADT_ENTRY(lapic_addr_ovr, end)) | |
302 | return -EINVAL; | |
303 | ||
6de42119 BH |
304 | acpi_table_print_madt_entry(header); |
305 | ||
1da177e4 LT |
306 | acpi_lapic_addr = lapic_addr_ovr->address; |
307 | ||
308 | return 0; | |
309 | } | |
310 | ||
7237d3de SS |
311 | static int __init |
312 | acpi_parse_x2apic_nmi(struct acpi_subtable_header *header, | |
313 | const unsigned long end) | |
314 | { | |
315 | struct acpi_madt_local_x2apic_nmi *x2apic_nmi = NULL; | |
316 | ||
317 | x2apic_nmi = (struct acpi_madt_local_x2apic_nmi *)header; | |
318 | ||
319 | if (BAD_MADT_ENTRY(x2apic_nmi, end)) | |
320 | return -EINVAL; | |
321 | ||
322 | acpi_table_print_madt_entry(header); | |
323 | ||
324 | if (x2apic_nmi->lint != 1) | |
325 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
326 | ||
327 | return 0; | |
328 | } | |
329 | ||
1da177e4 | 330 | static int __init |
5f3b1a8b | 331 | acpi_parse_lapic_nmi(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 332 | { |
5f3b1a8b | 333 | struct acpi_madt_local_apic_nmi *lapic_nmi = NULL; |
1da177e4 | 334 | |
5f3b1a8b | 335 | lapic_nmi = (struct acpi_madt_local_apic_nmi *)header; |
1da177e4 LT |
336 | |
337 | if (BAD_MADT_ENTRY(lapic_nmi, end)) | |
338 | return -EINVAL; | |
339 | ||
340 | acpi_table_print_madt_entry(header); | |
341 | ||
342 | if (lapic_nmi->lint != 1) | |
343 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
344 | ||
345 | return 0; | |
346 | } | |
347 | ||
4be44fcd | 348 | #endif /*CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 349 | |
8466361a | 350 | #ifdef CONFIG_X86_IO_APIC |
8d7cdcb9 JL |
351 | #define MP_ISA_BUS 0 |
352 | ||
4ee2ec1b VS |
353 | static int __init mp_register_ioapic_irq(u8 bus_irq, u8 polarity, |
354 | u8 trigger, u32 gsi); | |
355 | ||
8d7cdcb9 JL |
356 | static void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, |
357 | u32 gsi) | |
358 | { | |
dad5ab0d SH |
359 | /* |
360 | * Check bus_irq boundary. | |
361 | */ | |
362 | if (bus_irq >= NR_IRQS_LEGACY) { | |
363 | pr_warn("Invalid bus_irq %u for legacy override\n", bus_irq); | |
364 | return; | |
365 | } | |
366 | ||
8d7cdcb9 JL |
367 | /* |
368 | * TBD: This check is for faulty timer entries, where the override | |
369 | * erroneously sets the trigger to level, resulting in a HUGE | |
370 | * increase of timer interrupts! | |
371 | */ | |
372 | if ((bus_irq == 0) && (trigger == 3)) | |
373 | trigger = 1; | |
374 | ||
4ee2ec1b VS |
375 | if (mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi) < 0) |
376 | return; | |
2e0ad0e2 JL |
377 | /* |
378 | * Reset default identity mapping if gsi is also an legacy IRQ, | |
379 | * otherwise there will be more than one entry with the same GSI | |
380 | * and acpi_isa_irq_to_gsi() may give wrong result. | |
381 | */ | |
95d76acc | 382 | if (gsi < nr_legacy_irqs() && isa_irq_to_gsi[gsi] == gsi) |
220580fb | 383 | isa_irq_to_gsi[gsi] = INVALID_ACPI_IRQ; |
8d7cdcb9 JL |
384 | isa_irq_to_gsi[bus_irq] = gsi; |
385 | } | |
386 | ||
387 | static int mp_config_acpi_gsi(struct device *dev, u32 gsi, int trigger, | |
388 | int polarity) | |
389 | { | |
390 | #ifdef CONFIG_X86_MPPARSE | |
391 | struct mpc_intsrc mp_irq; | |
392 | struct pci_dev *pdev; | |
393 | unsigned char number; | |
394 | unsigned int devfn; | |
395 | int ioapic; | |
396 | u8 pin; | |
397 | ||
398 | if (!acpi_ioapic) | |
399 | return 0; | |
400 | if (!dev || !dev_is_pci(dev)) | |
401 | return 0; | |
402 | ||
403 | pdev = to_pci_dev(dev); | |
404 | number = pdev->bus->number; | |
405 | devfn = pdev->devfn; | |
406 | pin = pdev->pin; | |
407 | /* print the entry should happen on mptable identically */ | |
408 | mp_irq.type = MP_INTSRC; | |
409 | mp_irq.irqtype = mp_INT; | |
410 | mp_irq.irqflag = (trigger == ACPI_EDGE_SENSITIVE ? 4 : 0x0c) | | |
411 | (polarity == ACPI_ACTIVE_HIGH ? 1 : 3); | |
412 | mp_irq.srcbus = number; | |
413 | mp_irq.srcbusirq = (((devfn >> 3) & 0x1f) << 2) | ((pin - 1) & 3); | |
414 | ioapic = mp_find_ioapic(gsi); | |
415 | mp_irq.dstapic = mpc_ioapic_id(ioapic); | |
416 | mp_irq.dstirq = mp_find_ioapic_pin(ioapic, gsi); | |
417 | ||
418 | mp_save_irq(&mp_irq); | |
419 | #endif | |
420 | return 0; | |
421 | } | |
422 | ||
25271415 VS |
423 | static int __init mp_register_ioapic_irq(u8 bus_irq, u8 polarity, |
424 | u8 trigger, u32 gsi) | |
425 | { | |
426 | struct mpc_intsrc mp_irq; | |
427 | int ioapic, pin; | |
428 | ||
429 | /* Convert 'gsi' to 'ioapic.pin'(INTIN#) */ | |
430 | ioapic = mp_find_ioapic(gsi); | |
431 | if (ioapic < 0) { | |
432 | pr_warn("Failed to find ioapic for gsi : %u\n", gsi); | |
433 | return ioapic; | |
434 | } | |
435 | ||
436 | pin = mp_find_ioapic_pin(ioapic, gsi); | |
437 | ||
438 | mp_irq.type = MP_INTSRC; | |
439 | mp_irq.irqtype = mp_INT; | |
440 | mp_irq.irqflag = (trigger << 2) | polarity; | |
441 | mp_irq.srcbus = MP_ISA_BUS; | |
442 | mp_irq.srcbusirq = bus_irq; | |
443 | mp_irq.dstapic = mpc_ioapic_id(ioapic); | |
444 | mp_irq.dstirq = pin; | |
445 | ||
446 | mp_save_irq(&mp_irq); | |
447 | ||
448 | return 0; | |
449 | } | |
450 | ||
1da177e4 | 451 | static int __init |
5f3b1a8b | 452 | acpi_parse_ioapic(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 453 | { |
5f3b1a8b | 454 | struct acpi_madt_io_apic *ioapic = NULL; |
ca7e28aa JL |
455 | struct ioapic_domain_cfg cfg = { |
456 | .type = IOAPIC_DOMAIN_DYNAMIC, | |
f7a0c786 | 457 | .ops = &mp_ioapic_irqdomain_ops, |
ca7e28aa | 458 | }; |
1da177e4 | 459 | |
5f3b1a8b | 460 | ioapic = (struct acpi_madt_io_apic *)header; |
1da177e4 LT |
461 | |
462 | if (BAD_MADT_ENTRY(ioapic, end)) | |
463 | return -EINVAL; | |
4be44fcd | 464 | |
1da177e4 LT |
465 | acpi_table_print_madt_entry(header); |
466 | ||
ca7e28aa JL |
467 | /* Statically assign IRQ numbers for IOAPICs hosting legacy IRQs */ |
468 | if (ioapic->global_irq_base < nr_legacy_irqs()) | |
469 | cfg.type = IOAPIC_DOMAIN_LEGACY; | |
470 | ||
471 | mp_register_ioapic(ioapic->id, ioapic->address, ioapic->global_irq_base, | |
472 | &cfg); | |
4be44fcd | 473 | |
1da177e4 LT |
474 | return 0; |
475 | } | |
476 | ||
477 | /* | |
478 | * Parse Interrupt Source Override for the ACPI SCI | |
479 | */ | |
9d2062b8 | 480 | static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger, u32 gsi) |
1da177e4 LT |
481 | { |
482 | if (trigger == 0) /* compatible SCI trigger is level */ | |
483 | trigger = 3; | |
484 | ||
485 | if (polarity == 0) /* compatible SCI polarity is low */ | |
486 | polarity = 3; | |
487 | ||
488 | /* Command-line over-ride via acpi_sci= */ | |
5f3b1a8b AS |
489 | if (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) |
490 | trigger = (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) >> 2; | |
1da177e4 | 491 | |
5f3b1a8b AS |
492 | if (acpi_sci_flags & ACPI_MADT_POLARITY_MASK) |
493 | polarity = acpi_sci_flags & ACPI_MADT_POLARITY_MASK; | |
1da177e4 | 494 | |
25271415 VS |
495 | if (bus_irq < NR_IRQS_LEGACY) |
496 | mp_override_legacy_irq(bus_irq, polarity, trigger, gsi); | |
497 | else | |
498 | mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi); | |
499 | ||
f1caa61d | 500 | acpi_penalize_sci_irq(bus_irq, trigger, polarity); |
1da177e4 LT |
501 | |
502 | /* | |
503 | * stash over-ride to indicate we've been here | |
cee324b1 | 504 | * and for later update of acpi_gbl_FADT |
1da177e4 | 505 | */ |
7bdd21ce | 506 | acpi_sci_override_gsi = gsi; |
1da177e4 LT |
507 | return; |
508 | } | |
509 | ||
510 | static int __init | |
5f3b1a8b | 511 | acpi_parse_int_src_ovr(struct acpi_subtable_header * header, |
4be44fcd | 512 | const unsigned long end) |
1da177e4 | 513 | { |
5f3b1a8b | 514 | struct acpi_madt_interrupt_override *intsrc = NULL; |
1da177e4 | 515 | |
5f3b1a8b | 516 | intsrc = (struct acpi_madt_interrupt_override *)header; |
1da177e4 LT |
517 | |
518 | if (BAD_MADT_ENTRY(intsrc, end)) | |
519 | return -EINVAL; | |
520 | ||
521 | acpi_table_print_madt_entry(header); | |
522 | ||
5f3b1a8b | 523 | if (intsrc->source_irq == acpi_gbl_FADT.sci_interrupt) { |
9d2062b8 | 524 | acpi_sci_ioapic_setup(intsrc->source_irq, |
5f3b1a8b | 525 | intsrc->inti_flags & ACPI_MADT_POLARITY_MASK, |
9d2062b8 EB |
526 | (intsrc->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2, |
527 | intsrc->global_irq); | |
1da177e4 LT |
528 | return 0; |
529 | } | |
530 | ||
ae10ccdc | 531 | if (intsrc->source_irq == 0) { |
7f74f8f2 | 532 | if (acpi_skip_timer_override) { |
ae10ccdc | 533 | printk(PREFIX "BIOS IRQ0 override ignored.\n"); |
7f74f8f2 AH |
534 | return 0; |
535 | } | |
ae10ccdc FT |
536 | |
537 | if ((intsrc->global_irq == 2) && acpi_fix_pin2_polarity | |
538 | && (intsrc->inti_flags & ACPI_MADT_POLARITY_MASK)) { | |
7f74f8f2 AH |
539 | intsrc->inti_flags &= ~ACPI_MADT_POLARITY_MASK; |
540 | printk(PREFIX "BIOS IRQ0 pin2 override: forcing polarity to high active.\n"); | |
541 | } | |
1da177e4 LT |
542 | } |
543 | ||
5f3b1a8b AS |
544 | mp_override_legacy_irq(intsrc->source_irq, |
545 | intsrc->inti_flags & ACPI_MADT_POLARITY_MASK, | |
546 | (intsrc->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2, | |
547 | intsrc->global_irq); | |
1da177e4 LT |
548 | |
549 | return 0; | |
550 | } | |
551 | ||
1da177e4 | 552 | static int __init |
5f3b1a8b | 553 | acpi_parse_nmi_src(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 554 | { |
5f3b1a8b | 555 | struct acpi_madt_nmi_source *nmi_src = NULL; |
1da177e4 | 556 | |
5f3b1a8b | 557 | nmi_src = (struct acpi_madt_nmi_source *)header; |
1da177e4 LT |
558 | |
559 | if (BAD_MADT_ENTRY(nmi_src, end)) | |
560 | return -EINVAL; | |
561 | ||
562 | acpi_table_print_madt_entry(header); | |
563 | ||
564 | /* TBD: Support nimsrc entries? */ | |
565 | ||
566 | return 0; | |
567 | } | |
568 | ||
4be44fcd | 569 | #endif /* CONFIG_X86_IO_APIC */ |
1da177e4 | 570 | |
1da177e4 LT |
571 | /* |
572 | * acpi_pic_sci_set_trigger() | |
5f3b1a8b | 573 | * |
1da177e4 LT |
574 | * use ELCR to set PIC-mode trigger type for SCI |
575 | * | |
576 | * If a PIC-mode SCI is not recognized or gives spurious IRQ7's | |
577 | * it may require Edge Trigger -- use "acpi_sci=edge" | |
578 | * | |
579 | * Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers | |
580 | * for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge. | |
27b46d76 SA |
581 | * ECLR1 is IRQs 0-7 (IRQ 0, 1, 2 must be 0) |
582 | * ECLR2 is IRQs 8-15 (IRQ 8, 13 must be 0) | |
1da177e4 LT |
583 | */ |
584 | ||
4be44fcd | 585 | void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger) |
1da177e4 LT |
586 | { |
587 | unsigned int mask = 1 << irq; | |
588 | unsigned int old, new; | |
589 | ||
590 | /* Real old ELCR mask */ | |
591 | old = inb(0x4d0) | (inb(0x4d1) << 8); | |
592 | ||
593 | /* | |
27b46d76 | 594 | * If we use ACPI to set PCI IRQs, then we should clear ELCR |
1da177e4 LT |
595 | * since we will set it correctly as we enable the PCI irq |
596 | * routing. | |
597 | */ | |
598 | new = acpi_noirq ? old : 0; | |
599 | ||
600 | /* | |
601 | * Update SCI information in the ELCR, it isn't in the PCI | |
602 | * routing tables.. | |
603 | */ | |
604 | switch (trigger) { | |
4be44fcd | 605 | case 1: /* Edge - clear */ |
1da177e4 LT |
606 | new &= ~mask; |
607 | break; | |
4be44fcd | 608 | case 3: /* Level - set */ |
1da177e4 LT |
609 | new |= mask; |
610 | break; | |
611 | } | |
612 | ||
613 | if (old == new) | |
614 | return; | |
615 | ||
616 | printk(PREFIX "setting ELCR to %04x (from %04x)\n", new, old); | |
617 | outb(new, 0x4d0); | |
618 | outb(new >> 8, 0x4d1); | |
619 | } | |
620 | ||
6b9fb708 | 621 | int acpi_gsi_to_irq(u32 gsi, unsigned int *irqp) |
1da177e4 | 622 | { |
b568b860 JL |
623 | int rc, irq, trigger, polarity; |
624 | ||
1ea76fba JL |
625 | if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { |
626 | *irqp = gsi; | |
627 | return 0; | |
628 | } | |
629 | ||
b568b860 | 630 | rc = acpi_get_override_irq(gsi, &trigger, &polarity); |
a89bca27 AS |
631 | if (rc) |
632 | return rc; | |
b568b860 | 633 | |
a89bca27 AS |
634 | trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE; |
635 | polarity = polarity ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH; | |
636 | irq = acpi_register_gsi(NULL, gsi, trigger, polarity); | |
637 | if (irq < 0) | |
638 | return irq; | |
639 | ||
640 | *irqp = irq; | |
641 | return 0; | |
1da177e4 | 642 | } |
81e88fdc | 643 | EXPORT_SYMBOL_GPL(acpi_gsi_to_irq); |
1da177e4 | 644 | |
2c2df841 EB |
645 | int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi) |
646 | { | |
95d76acc | 647 | if (isa_irq < nr_legacy_irqs() && |
220580fb | 648 | isa_irq_to_gsi[isa_irq] != INVALID_ACPI_IRQ) { |
032329ee JL |
649 | *gsi = isa_irq_to_gsi[isa_irq]; |
650 | return 0; | |
651 | } | |
652 | ||
653 | return -1; | |
2c2df841 EB |
654 | } |
655 | ||
2f065aef JF |
656 | static int acpi_register_gsi_pic(struct device *dev, u32 gsi, |
657 | int trigger, int polarity) | |
1da177e4 | 658 | { |
1da177e4 LT |
659 | #ifdef CONFIG_PCI |
660 | /* | |
661 | * Make sure all (legacy) PCI IRQs are set as level-triggered. | |
662 | */ | |
2f065aef | 663 | if (trigger == ACPI_LEVEL_SENSITIVE) |
ea6cd250 | 664 | elcr_set_level_irq(gsi); |
1da177e4 LT |
665 | #endif |
666 | ||
2f065aef JF |
667 | return gsi; |
668 | } | |
669 | ||
2f82c9dc | 670 | #ifdef CONFIG_X86_LOCAL_APIC |
2f065aef JF |
671 | static int acpi_register_gsi_ioapic(struct device *dev, u32 gsi, |
672 | int trigger, int polarity) | |
673 | { | |
84245af7 | 674 | int irq = gsi; |
1da177e4 | 675 | #ifdef CONFIG_X86_IO_APIC |
46176f39 JL |
676 | int node; |
677 | struct irq_alloc_info info; | |
678 | ||
679 | node = dev ? dev_to_node(dev) : NUMA_NO_NODE; | |
680 | trigger = trigger == ACPI_EDGE_SENSITIVE ? 0 : 1; | |
681 | polarity = polarity == ACPI_ACTIVE_HIGH ? 0 : 1; | |
682 | ioapic_set_alloc_attr(&info, node, trigger, polarity); | |
683 | ||
5da2fd26 | 684 | mutex_lock(&acpi_ioapic_lock); |
46176f39 JL |
685 | irq = mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC, &info); |
686 | /* Don't set up the ACPI SCI because it's already set up */ | |
7d7fb91c | 687 | if (irq >= 0 && enable_update_mptable && gsi != acpi_gbl_FADT.sci_interrupt) |
46176f39 | 688 | mp_config_acpi_gsi(dev, gsi, trigger, polarity); |
5da2fd26 | 689 | mutex_unlock(&acpi_ioapic_lock); |
1da177e4 | 690 | #endif |
2f065aef | 691 | |
84245af7 | 692 | return irq; |
2f065aef JF |
693 | } |
694 | ||
6a38fa0e JL |
695 | static void acpi_unregister_gsi_ioapic(u32 gsi) |
696 | { | |
697 | #ifdef CONFIG_X86_IO_APIC | |
46176f39 JL |
698 | int irq; |
699 | ||
5da2fd26 | 700 | mutex_lock(&acpi_ioapic_lock); |
46176f39 JL |
701 | irq = mp_map_gsi_to_irq(gsi, 0, NULL); |
702 | if (irq > 0) | |
703 | mp_unmap_irq(irq); | |
5da2fd26 | 704 | mutex_unlock(&acpi_ioapic_lock); |
6a38fa0e | 705 | #endif |
2f065aef | 706 | } |
2f82c9dc | 707 | #endif |
2f065aef | 708 | |
90f6881e JF |
709 | int (*__acpi_register_gsi)(struct device *dev, u32 gsi, |
710 | int trigger, int polarity) = acpi_register_gsi_pic; | |
6a38fa0e | 711 | void (*__acpi_unregister_gsi)(u32 gsi) = NULL; |
2f065aef | 712 | |
d6a77ead KRW |
713 | #ifdef CONFIG_ACPI_SLEEP |
714 | int (*acpi_suspend_lowlevel)(void) = x86_acpi_suspend_lowlevel; | |
715 | #else | |
716 | int (*acpi_suspend_lowlevel)(void); | |
717 | #endif | |
718 | ||
2f065aef JF |
719 | /* |
720 | * success: return IRQ number (>=0) | |
721 | * failure: return < 0 | |
722 | */ | |
723 | int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity) | |
724 | { | |
84245af7 | 725 | return __acpi_register_gsi(dev, gsi, trigger, polarity); |
1da177e4 | 726 | } |
35e92b78 AS |
727 | EXPORT_SYMBOL_GPL(acpi_register_gsi); |
728 | ||
729 | void acpi_unregister_gsi(u32 gsi) | |
730 | { | |
6a38fa0e JL |
731 | if (__acpi_unregister_gsi) |
732 | __acpi_unregister_gsi(gsi); | |
35e92b78 AS |
733 | } |
734 | EXPORT_SYMBOL_GPL(acpi_unregister_gsi); | |
4be44fcd | 735 | |
9f50c6ea | 736 | #ifdef CONFIG_X86_LOCAL_APIC |
e819813f | 737 | static void __init acpi_set_irq_model_ioapic(void) |
2f065aef JF |
738 | { |
739 | acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; | |
740 | __acpi_register_gsi = acpi_register_gsi_ioapic; | |
6a38fa0e | 741 | __acpi_unregister_gsi = acpi_unregister_gsi_ioapic; |
2f065aef JF |
742 | acpi_ioapic = 1; |
743 | } | |
9f50c6ea | 744 | #endif |
2f065aef | 745 | |
1da177e4 LT |
746 | /* |
747 | * ACPI based hotplug support for CPU | |
748 | */ | |
749 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | |
d8191fa4 | 750 | #include <acpi/processor.h> |
009cbadb | 751 | |
c962cff1 | 752 | static int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid) |
0271f910 HL |
753 | { |
754 | #ifdef CONFIG_ACPI_NUMA | |
755 | int nid; | |
756 | ||
757 | nid = acpi_get_node(handle); | |
4370a3ef | 758 | if (nid != NUMA_NO_NODE) { |
896dc506 JL |
759 | set_apicid_to_node(physid, nid); |
760 | numa_set_node(cpu, nid); | |
761 | } | |
0271f910 | 762 | #endif |
dc6db24d | 763 | return 0; |
0271f910 | 764 | } |
009cbadb | 765 | |
febf2407 VK |
766 | int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, |
767 | int *pcpu) | |
1da177e4 | 768 | { |
73fea175 | 769 | int cpu; |
ee943a82 | 770 | |
febf2407 | 771 | cpu = acpi_register_lapic(physid, acpi_id, ACPI_MADT_ENABLED); |
7e1f85f9 JL |
772 | if (cpu < 0) { |
773 | pr_info(PREFIX "Unable to map lapic to logical cpu number\n"); | |
774 | return cpu; | |
73fea175 AR |
775 | } |
776 | ||
d8191fa4 | 777 | acpi_processor_set_pdc(handle); |
0271f910 | 778 | acpi_map_cpu2node(handle, cpu, physid); |
73fea175 AR |
779 | |
780 | *pcpu = cpu; | |
7e1f85f9 | 781 | return 0; |
1da177e4 | 782 | } |
d02dc27d | 783 | EXPORT_SYMBOL(acpi_map_cpu); |
1da177e4 | 784 | |
d02dc27d | 785 | int acpi_unmap_cpu(int cpu) |
1da177e4 | 786 | { |
c4c60524 WC |
787 | #ifdef CONFIG_ACPI_NUMA |
788 | set_apicid_to_node(per_cpu(x86_cpu_to_apicid, cpu), NUMA_NO_NODE); | |
789 | #endif | |
790 | ||
71fff5e6 | 791 | per_cpu(x86_cpu_to_apicid, cpu) = -1; |
9628937d | 792 | set_cpu_present(cpu, false); |
73fea175 AR |
793 | num_processors--; |
794 | ||
795 | return (0); | |
1da177e4 | 796 | } |
d02dc27d | 797 | EXPORT_SYMBOL(acpi_unmap_cpu); |
4be44fcd | 798 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ |
1da177e4 | 799 | |
4be44fcd | 800 | int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) |
b1bb248a | 801 | { |
7db298cb JL |
802 | int ret = -ENOSYS; |
803 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
804 | int ioapic_id; | |
805 | u64 addr; | |
806 | struct ioapic_domain_cfg cfg = { | |
807 | .type = IOAPIC_DOMAIN_DYNAMIC, | |
f7a0c786 | 808 | .ops = &mp_ioapic_irqdomain_ops, |
7db298cb JL |
809 | }; |
810 | ||
811 | ioapic_id = acpi_get_ioapic_id(handle, gsi_base, &addr); | |
812 | if (ioapic_id < 0) { | |
813 | unsigned long long uid; | |
814 | acpi_status status; | |
815 | ||
816 | status = acpi_evaluate_integer(handle, METHOD_NAME__UID, | |
817 | NULL, &uid); | |
818 | if (ACPI_FAILURE(status)) { | |
819 | acpi_handle_warn(handle, "failed to get IOAPIC ID.\n"); | |
820 | return -EINVAL; | |
821 | } | |
822 | ioapic_id = (int)uid; | |
823 | } | |
824 | ||
825 | mutex_lock(&acpi_ioapic_lock); | |
826 | ret = mp_register_ioapic(ioapic_id, phys_addr, gsi_base, &cfg); | |
827 | mutex_unlock(&acpi_ioapic_lock); | |
828 | #endif | |
829 | ||
830 | return ret; | |
b1bb248a KK |
831 | } |
832 | EXPORT_SYMBOL(acpi_register_ioapic); | |
833 | ||
4be44fcd | 834 | int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base) |
b1bb248a | 835 | { |
15516a3b JL |
836 | int ret = -ENOSYS; |
837 | ||
838 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
839 | mutex_lock(&acpi_ioapic_lock); | |
840 | ret = mp_unregister_ioapic(gsi_base); | |
841 | mutex_unlock(&acpi_ioapic_lock); | |
842 | #endif | |
4be44fcd | 843 | |
15516a3b JL |
844 | return ret; |
845 | } | |
b1bb248a KK |
846 | EXPORT_SYMBOL(acpi_unregister_ioapic); |
847 | ||
e89900c9 JL |
848 | /** |
849 | * acpi_ioapic_registered - Check whether IOAPIC assoicatied with @gsi_base | |
850 | * has been registered | |
851 | * @handle: ACPI handle of the IOAPIC deivce | |
852 | * @gsi_base: GSI base associated with the IOAPIC | |
853 | * | |
854 | * Assume caller holds some type of lock to serialize acpi_ioapic_registered() | |
855 | * with acpi_register_ioapic()/acpi_unregister_ioapic(). | |
856 | */ | |
857 | int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base) | |
858 | { | |
859 | int ret = 0; | |
860 | ||
861 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
862 | mutex_lock(&acpi_ioapic_lock); | |
863 | ret = mp_ioapic_registered(gsi_base); | |
864 | mutex_unlock(&acpi_ioapic_lock); | |
865 | #endif | |
866 | ||
867 | return ret; | |
868 | } | |
869 | ||
5f3b1a8b | 870 | static int __init acpi_parse_sbf(struct acpi_table_header *table) |
1da177e4 | 871 | { |
2fad9308 | 872 | struct acpi_table_boot *sb = (struct acpi_table_boot *)table; |
1da177e4 | 873 | |
5f3b1a8b | 874 | sbf_port = sb->cmos_index; /* Save CMOS port */ |
1da177e4 LT |
875 | |
876 | return 0; | |
877 | } | |
878 | ||
1da177e4 | 879 | #ifdef CONFIG_HPET_TIMER |
2d0c87c3 | 880 | #include <asm/hpet.h> |
1da177e4 | 881 | |
dd96dc32 | 882 | static struct resource *hpet_res __initdata; |
a1dfd851 | 883 | |
5f3b1a8b | 884 | static int __init acpi_parse_hpet(struct acpi_table_header *table) |
1da177e4 | 885 | { |
2fad9308 | 886 | struct acpi_table_hpet *hpet_tbl = (struct acpi_table_hpet *)table; |
1da177e4 | 887 | |
ad363f80 | 888 | if (hpet_tbl->address.space_id != ACPI_SPACE_MEM) { |
1da177e4 LT |
889 | printk(KERN_WARNING PREFIX "HPET timers must be located in " |
890 | "memory.\n"); | |
891 | return -1; | |
892 | } | |
f0f4c343 | 893 | |
2d0c87c3 | 894 | hpet_address = hpet_tbl->address.address; |
c8bc6f3c | 895 | hpet_blockid = hpet_tbl->sequence; |
f4df73c2 TG |
896 | |
897 | /* | |
898 | * Some broken BIOSes advertise HPET at 0x0. We really do not | |
899 | * want to allocate a resource there. | |
900 | */ | |
901 | if (!hpet_address) { | |
902 | printk(KERN_WARNING PREFIX | |
903 | "HPET id: %#x base: %#lx is invalid\n", | |
904 | hpet_tbl->id, hpet_address); | |
905 | return 0; | |
906 | } | |
907 | #ifdef CONFIG_X86_64 | |
908 | /* | |
909 | * Some even more broken BIOSes advertise HPET at | |
910 | * 0xfed0000000000000 instead of 0xfed00000. Fix it up and add | |
911 | * some noise: | |
912 | */ | |
913 | if (hpet_address == 0xfed0000000000000UL) { | |
914 | if (!hpet_force_user) { | |
915 | printk(KERN_WARNING PREFIX "HPET id: %#x " | |
916 | "base: 0xfed0000000000000 is bogus\n " | |
917 | "try hpet=force on the kernel command line to " | |
918 | "fix it up to 0xfed00000.\n", hpet_tbl->id); | |
919 | hpet_address = 0; | |
920 | return 0; | |
921 | } | |
922 | printk(KERN_WARNING PREFIX | |
923 | "HPET id: %#x base: 0xfed0000000000000 fixed up " | |
924 | "to 0xfed00000.\n", hpet_tbl->id); | |
925 | hpet_address >>= 32; | |
926 | } | |
927 | #endif | |
4be44fcd | 928 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", |
2d0c87c3 | 929 | hpet_tbl->id, hpet_address); |
1da177e4 | 930 | |
a1dfd851 AD |
931 | /* |
932 | * Allocate and initialize the HPET firmware resource for adding into | |
933 | * the resource tree during the lateinit timeframe. | |
934 | */ | |
935 | #define HPET_RESOURCE_NAME_SIZE 9 | |
2a5bda5a | 936 | hpet_res = memblock_alloc(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE, |
7e1c4e27 | 937 | SMP_CACHE_BYTES); |
a1dfd851 | 938 | |
a1dfd851 AD |
939 | hpet_res->name = (void *)&hpet_res[1]; |
940 | hpet_res->flags = IORESOURCE_MEM; | |
941 | snprintf((char *)hpet_res->name, HPET_RESOURCE_NAME_SIZE, "HPET %u", | |
942 | hpet_tbl->sequence); | |
943 | ||
944 | hpet_res->start = hpet_address; | |
945 | hpet_res->end = hpet_address + (1 * 1024) - 1; | |
946 | ||
1da177e4 LT |
947 | return 0; |
948 | } | |
a1dfd851 AD |
949 | |
950 | /* | |
951 | * hpet_insert_resource inserts the HPET resources used into the resource | |
952 | * tree. | |
953 | */ | |
954 | static __init int hpet_insert_resource(void) | |
955 | { | |
956 | if (!hpet_res) | |
957 | return 1; | |
958 | ||
959 | return insert_resource(&iomem_resource, hpet_res); | |
960 | } | |
961 | ||
962 | late_initcall(hpet_insert_resource); | |
963 | ||
1da177e4 LT |
964 | #else |
965 | #define acpi_parse_hpet NULL | |
966 | #endif | |
967 | ||
5f3b1a8b | 968 | static int __init acpi_parse_fadt(struct acpi_table_header *table) |
1da177e4 | 969 | { |
7a17b82c LR |
970 | if (!(acpi_gbl_FADT.boot_flags & ACPI_FADT_LEGACY_DEVICES)) { |
971 | pr_debug("ACPI: no legacy devices present\n"); | |
972 | x86_platform.legacy.devices.pnpbios = 0; | |
973 | } | |
974 | ||
93ffa9a4 DT |
975 | if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID && |
976 | !(acpi_gbl_FADT.boot_flags & ACPI_FADT_8042) && | |
977 | x86_platform.legacy.i8042 != X86_LEGACY_I8042_PLATFORM_ABSENT) { | |
978 | pr_debug("ACPI: i8042 controller is absent\n"); | |
979 | x86_platform.legacy.i8042 = X86_LEGACY_I8042_FIRMWARE_ABSENT; | |
980 | } | |
981 | ||
088a8ef8 LR |
982 | if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_CMOS_RTC) { |
983 | pr_debug("ACPI: not registering RTC platform device\n"); | |
984 | x86_platform.legacy.rtc = 0; | |
985 | } | |
90660ec3 | 986 | |
6d730525 JG |
987 | if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_VGA) { |
988 | pr_debug("ACPI: probing for VGA not safe\n"); | |
989 | x86_platform.legacy.no_vga = 1; | |
990 | } | |
991 | ||
1da177e4 LT |
992 | #ifdef CONFIG_X86_PM_TIMER |
993 | /* detect the location of the ACPI PM Timer */ | |
5f3b1a8b | 994 | if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) { |
1da177e4 | 995 | /* FADT rev. 2 */ |
5f3b1a8b | 996 | if (acpi_gbl_FADT.xpm_timer_block.space_id != |
4be44fcd | 997 | ACPI_ADR_SPACE_SYSTEM_IO) |
1da177e4 LT |
998 | return 0; |
999 | ||
5f3b1a8b | 1000 | pmtmr_ioport = acpi_gbl_FADT.xpm_timer_block.address; |
e6e87b4b DSL |
1001 | /* |
1002 | * "X" fields are optional extensions to the original V1.0 | |
1003 | * fields, so we must selectively expand V1.0 fields if the | |
1004 | * corresponding X field is zero. | |
1005 | */ | |
1006 | if (!pmtmr_ioport) | |
5f3b1a8b | 1007 | pmtmr_ioport = acpi_gbl_FADT.pm_timer_block; |
1da177e4 LT |
1008 | } else { |
1009 | /* FADT rev. 1 */ | |
5f3b1a8b | 1010 | pmtmr_ioport = acpi_gbl_FADT.pm_timer_block; |
1da177e4 LT |
1011 | } |
1012 | if (pmtmr_ioport) | |
4be44fcd LB |
1013 | printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n", |
1014 | pmtmr_ioport); | |
1da177e4 LT |
1015 | #endif |
1016 | return 0; | |
1017 | } | |
1018 | ||
1da177e4 LT |
1019 | #ifdef CONFIG_X86_LOCAL_APIC |
1020 | /* | |
1021 | * Parse LAPIC entries in MADT | |
1022 | * returns 0 on success, < 0 on error | |
1023 | */ | |
31d2092e | 1024 | |
cbf9bd60 YL |
1025 | static int __init early_acpi_parse_madt_lapic_addr_ovr(void) |
1026 | { | |
1027 | int count; | |
1028 | ||
93984fbd | 1029 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
cbf9bd60 YL |
1030 | return -ENODEV; |
1031 | ||
1032 | /* | |
1033 | * Note that the LAPIC address is obtained from the MADT (32-bit value) | |
6a6256f9 | 1034 | * and (optionally) overridden by a LAPIC_ADDR_OVR entry (64-bit value). |
cbf9bd60 YL |
1035 | */ |
1036 | ||
e819813f JL |
1037 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE, |
1038 | acpi_parse_lapic_addr_ovr, 0); | |
cbf9bd60 YL |
1039 | if (count < 0) { |
1040 | printk(KERN_ERR PREFIX | |
1041 | "Error parsing LAPIC address override entry\n"); | |
1042 | return count; | |
1043 | } | |
1044 | ||
c0104d38 | 1045 | register_lapic_address(acpi_lapic_addr); |
cbf9bd60 YL |
1046 | |
1047 | return count; | |
1048 | } | |
1049 | ||
4be44fcd | 1050 | static int __init acpi_parse_madt_lapic_entries(void) |
1da177e4 LT |
1051 | { |
1052 | int count; | |
7237d3de | 1053 | int x2count = 0; |
d81056b5 LA |
1054 | int ret; |
1055 | struct acpi_subtable_proc madt_proc[2]; | |
1da177e4 | 1056 | |
93984fbd | 1057 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
0fcd2709 AK |
1058 | return -ENODEV; |
1059 | ||
ac049c1d | 1060 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC, |
cb2ded37 | 1061 | acpi_parse_sapic, MAX_LOCAL_APIC); |
ac049c1d | 1062 | |
7237d3de | 1063 | if (!count) { |
d81056b5 LA |
1064 | memset(madt_proc, 0, sizeof(madt_proc)); |
1065 | madt_proc[0].id = ACPI_MADT_TYPE_LOCAL_APIC; | |
1066 | madt_proc[0].handler = acpi_parse_lapic; | |
1067 | madt_proc[1].id = ACPI_MADT_TYPE_LOCAL_X2APIC; | |
1068 | madt_proc[1].handler = acpi_parse_x2apic; | |
1069 | ret = acpi_table_parse_entries_array(ACPI_SIG_MADT, | |
1070 | sizeof(struct acpi_table_madt), | |
1071 | madt_proc, ARRAY_SIZE(madt_proc), MAX_LOCAL_APIC); | |
1072 | if (ret < 0) { | |
1073 | printk(KERN_ERR PREFIX | |
1074 | "Error parsing LAPIC/X2APIC entries\n"); | |
1075 | return ret; | |
1076 | } | |
1077 | ||
c12f29a5 AS |
1078 | count = madt_proc[0].count; |
1079 | x2count = madt_proc[1].count; | |
7237d3de SS |
1080 | } |
1081 | if (!count && !x2count) { | |
1da177e4 LT |
1082 | printk(KERN_ERR PREFIX "No LAPIC entries present\n"); |
1083 | /* TBD: Cleanup to allow fallback to MPS */ | |
1084 | return -ENODEV; | |
7237d3de | 1085 | } else if (count < 0 || x2count < 0) { |
1da177e4 LT |
1086 | printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n"); |
1087 | /* TBD: Cleanup to allow fallback to MPS */ | |
1088 | return count; | |
1089 | } | |
1090 | ||
e819813f JL |
1091 | x2count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_X2APIC_NMI, |
1092 | acpi_parse_x2apic_nmi, 0); | |
1093 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, | |
1094 | acpi_parse_lapic_nmi, 0); | |
7237d3de | 1095 | if (count < 0 || x2count < 0) { |
1da177e4 LT |
1096 | printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); |
1097 | /* TBD: Cleanup to allow fallback to MPS */ | |
1098 | return count; | |
1099 | } | |
1100 | return 0; | |
1101 | } | |
4be44fcd | 1102 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 1103 | |
8466361a | 1104 | #ifdef CONFIG_X86_IO_APIC |
a491cc90 | 1105 | static void __init mp_config_acpi_legacy_irqs(void) |
11113f84 | 1106 | { |
6df8809b | 1107 | int i; |
c2c21745 | 1108 | struct mpc_intsrc mp_irq; |
11113f84 | 1109 | |
bb8187d3 | 1110 | #ifdef CONFIG_EISA |
11113f84 AS |
1111 | /* |
1112 | * Fabricate the legacy ISA bus (bus #31). | |
1113 | */ | |
1114 | mp_bus_id_to_type[MP_ISA_BUS] = MP_BUS_ISA; | |
1115 | #endif | |
1116 | set_bit(MP_ISA_BUS, mp_bus_not_pci); | |
42d516ce | 1117 | pr_debug("Bus #%d is ISA (nIRQs: %d)\n", MP_ISA_BUS, nr_legacy_irqs()); |
11113f84 | 1118 | |
11113f84 AS |
1119 | /* |
1120 | * Use the default configuration for the IRQs 0-15. Unless | |
1121 | * overridden by (MADT) interrupt source override entries. | |
1122 | */ | |
95d76acc | 1123 | for (i = 0; i < nr_legacy_irqs(); i++) { |
0fd52670 EB |
1124 | int ioapic, pin; |
1125 | unsigned int dstapic; | |
11113f84 | 1126 | int idx; |
0fd52670 EB |
1127 | u32 gsi; |
1128 | ||
1129 | /* Locate the gsi that irq i maps to. */ | |
1130 | if (acpi_isa_irq_to_gsi(i, &gsi)) | |
1131 | continue; | |
1132 | ||
1133 | /* | |
1134 | * Locate the IOAPIC that manages the ISA IRQ. | |
1135 | */ | |
1136 | ioapic = mp_find_ioapic(gsi); | |
1137 | if (ioapic < 0) | |
1138 | continue; | |
1139 | pin = mp_find_ioapic_pin(ioapic, gsi); | |
d5371430 | 1140 | dstapic = mpc_ioapic_id(ioapic); |
11113f84 AS |
1141 | |
1142 | for (idx = 0; idx < mp_irq_entries; idx++) { | |
c2c21745 | 1143 | struct mpc_intsrc *irq = mp_irqs + idx; |
11113f84 AS |
1144 | |
1145 | /* Do we already have a mapping for this ISA IRQ? */ | |
c2c21745 | 1146 | if (irq->srcbus == MP_ISA_BUS && irq->srcbusirq == i) |
11113f84 AS |
1147 | break; |
1148 | ||
1149 | /* Do we already have a mapping for this IOAPIC pin */ | |
0fd52670 | 1150 | if (irq->dstapic == dstapic && irq->dstirq == pin) |
11113f84 AS |
1151 | break; |
1152 | } | |
1153 | ||
1154 | if (idx != mp_irq_entries) { | |
1155 | printk(KERN_DEBUG "ACPI: IRQ%d used by override.\n", i); | |
1156 | continue; /* IRQ already used */ | |
1157 | } | |
1158 | ||
c2c21745 JSR |
1159 | mp_irq.type = MP_INTSRC; |
1160 | mp_irq.irqflag = 0; /* Conforming */ | |
1161 | mp_irq.srcbus = MP_ISA_BUS; | |
1162 | mp_irq.dstapic = dstapic; | |
1163 | mp_irq.irqtype = mp_INT; | |
1164 | mp_irq.srcbusirq = i; /* Identity mapped */ | |
0fd52670 | 1165 | mp_irq.dstirq = pin; |
11113f84 | 1166 | |
2d8009ba | 1167 | mp_save_irq(&mp_irq); |
11113f84 AS |
1168 | } |
1169 | } | |
1170 | ||
1da177e4 LT |
1171 | /* |
1172 | * Parse IOAPIC related entries in MADT | |
1173 | * returns 0 on success, < 0 on error | |
1174 | */ | |
4be44fcd | 1175 | static int __init acpi_parse_madt_ioapic_entries(void) |
1da177e4 LT |
1176 | { |
1177 | int count; | |
1178 | ||
1179 | /* | |
1180 | * ACPI interpreter is required to complete interrupt setup, | |
1181 | * so if it is off, don't enumerate the io-apics with ACPI. | |
1182 | * If MPS is present, it will handle them, | |
1183 | * otherwise the system will stay in PIC mode | |
1184 | */ | |
6b2b171a | 1185 | if (acpi_disabled || acpi_noirq) |
1da177e4 | 1186 | return -ENODEV; |
1da177e4 | 1187 | |
93984fbd | 1188 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
d3b6a349 AK |
1189 | return -ENODEV; |
1190 | ||
1da177e4 | 1191 | /* |
4be44fcd | 1192 | * if "noapic" boot option, don't look for IO-APICs |
1da177e4 LT |
1193 | */ |
1194 | if (skip_ioapic_setup) { | |
1195 | printk(KERN_INFO PREFIX "Skipping IOAPIC probe " | |
4be44fcd | 1196 | "due to 'noapic' option.\n"); |
1da177e4 LT |
1197 | return -ENODEV; |
1198 | } | |
1199 | ||
e819813f JL |
1200 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_IO_APIC, acpi_parse_ioapic, |
1201 | MAX_IO_APICS); | |
1da177e4 LT |
1202 | if (!count) { |
1203 | printk(KERN_ERR PREFIX "No IOAPIC entries present\n"); | |
1204 | return -ENODEV; | |
4be44fcd | 1205 | } else if (count < 0) { |
1da177e4 LT |
1206 | printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n"); |
1207 | return count; | |
1208 | } | |
1209 | ||
e819813f JL |
1210 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_INTERRUPT_OVERRIDE, |
1211 | acpi_parse_int_src_ovr, nr_irqs); | |
1da177e4 | 1212 | if (count < 0) { |
4be44fcd LB |
1213 | printk(KERN_ERR PREFIX |
1214 | "Error parsing interrupt source overrides entry\n"); | |
1da177e4 LT |
1215 | /* TBD: Cleanup to allow fallback to MPS */ |
1216 | return count; | |
1217 | } | |
1218 | ||
1219 | /* | |
1220 | * If BIOS did not supply an INT_SRC_OVR for the SCI | |
1221 | * pretend we got one so we can set the SCI flags. | |
7c7bcfea | 1222 | * But ignore setting up SCI on hardware reduced platforms. |
1da177e4 | 1223 | */ |
7c7bcfea | 1224 | if (acpi_sci_override_gsi == INVALID_ACPI_IRQ && !acpi_gbl_reduced_hardware) |
9d2062b8 EB |
1225 | acpi_sci_ioapic_setup(acpi_gbl_FADT.sci_interrupt, 0, 0, |
1226 | acpi_gbl_FADT.sci_interrupt); | |
1da177e4 | 1227 | |
af901ca1 | 1228 | /* Fill in identity legacy mappings where no override */ |
1da177e4 LT |
1229 | mp_config_acpi_legacy_irqs(); |
1230 | ||
e819813f JL |
1231 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_NMI_SOURCE, |
1232 | acpi_parse_nmi_src, nr_irqs); | |
1da177e4 LT |
1233 | if (count < 0) { |
1234 | printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n"); | |
1235 | /* TBD: Cleanup to allow fallback to MPS */ | |
1236 | return count; | |
1237 | } | |
1238 | ||
1239 | return 0; | |
1240 | } | |
1241 | #else | |
1242 | static inline int acpi_parse_madt_ioapic_entries(void) | |
1243 | { | |
1244 | return -1; | |
1245 | } | |
8466361a | 1246 | #endif /* !CONFIG_X86_IO_APIC */ |
1da177e4 | 1247 | |
cbf9bd60 YL |
1248 | static void __init early_acpi_process_madt(void) |
1249 | { | |
1250 | #ifdef CONFIG_X86_LOCAL_APIC | |
1251 | int error; | |
1252 | ||
1253 | if (!acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) { | |
1254 | ||
1255 | /* | |
1256 | * Parse MADT LAPIC entries | |
1257 | */ | |
1258 | error = early_acpi_parse_madt_lapic_addr_ovr(); | |
1259 | if (!error) { | |
1260 | acpi_lapic = 1; | |
1261 | smp_found_config = 1; | |
1262 | } | |
1263 | if (error == -EINVAL) { | |
1264 | /* | |
1265 | * Dell Precision Workstation 410, 610 come here. | |
1266 | */ | |
1267 | printk(KERN_ERR PREFIX | |
1268 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1269 | disable_acpi(); | |
1270 | } | |
1271 | } | |
1272 | #endif | |
1273 | } | |
1274 | ||
4be44fcd | 1275 | static void __init acpi_process_madt(void) |
1da177e4 LT |
1276 | { |
1277 | #ifdef CONFIG_X86_LOCAL_APIC | |
7f8f97c3 | 1278 | int error; |
1da177e4 | 1279 | |
7f8f97c3 | 1280 | if (!acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) { |
1da177e4 LT |
1281 | |
1282 | /* | |
1283 | * Parse MADT LAPIC entries | |
1284 | */ | |
1285 | error = acpi_parse_madt_lapic_entries(); | |
1286 | if (!error) { | |
1287 | acpi_lapic = 1; | |
1288 | ||
1289 | /* | |
1290 | * Parse MADT IO-APIC entries | |
1291 | */ | |
5da2fd26 | 1292 | mutex_lock(&acpi_ioapic_lock); |
1da177e4 | 1293 | error = acpi_parse_madt_ioapic_entries(); |
5da2fd26 | 1294 | mutex_unlock(&acpi_ioapic_lock); |
1da177e4 | 1295 | if (!error) { |
2f065aef | 1296 | acpi_set_irq_model_ioapic(); |
1da177e4 LT |
1297 | |
1298 | smp_found_config = 1; | |
1da177e4 LT |
1299 | } |
1300 | } | |
1301 | if (error == -EINVAL) { | |
1302 | /* | |
1303 | * Dell Precision Workstation 410, 610 come here. | |
1304 | */ | |
4be44fcd LB |
1305 | printk(KERN_ERR PREFIX |
1306 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1da177e4 LT |
1307 | disable_acpi(); |
1308 | } | |
7b37b5fd LB |
1309 | } else { |
1310 | /* | |
1311 | * ACPI found no MADT, and so ACPI wants UP PIC mode. | |
1312 | * In the event an MPS table was found, forget it. | |
1313 | * Boot with "acpi=off" to use MPS on such a system. | |
1314 | */ | |
1315 | if (smp_found_config) { | |
1316 | printk(KERN_WARNING PREFIX | |
1317 | "No APIC-table, disabling MPS\n"); | |
1318 | smp_found_config = 0; | |
1319 | } | |
1da177e4 | 1320 | } |
69b88afa YL |
1321 | |
1322 | /* | |
1323 | * ACPI supports both logical (e.g. Hyper-Threading) and physical | |
1324 | * processors, where MPS only supports physical. | |
1325 | */ | |
1326 | if (acpi_lapic && acpi_ioapic) | |
1327 | printk(KERN_INFO "Using ACPI (MADT) for SMP configuration " | |
1328 | "information\n"); | |
1329 | else if (acpi_lapic) | |
1330 | printk(KERN_INFO "Using ACPI for processor (LAPIC) " | |
1331 | "configuration information\n"); | |
1da177e4 LT |
1332 | #endif |
1333 | return; | |
1334 | } | |
1335 | ||
1855256c | 1336 | static int __init disable_acpi_irq(const struct dmi_system_id *d) |
aea00143 AP |
1337 | { |
1338 | if (!acpi_force) { | |
1339 | printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n", | |
1340 | d->ident); | |
1341 | acpi_noirq_set(); | |
1342 | } | |
1343 | return 0; | |
1344 | } | |
1345 | ||
1855256c | 1346 | static int __init disable_acpi_pci(const struct dmi_system_id *d) |
aea00143 AP |
1347 | { |
1348 | if (!acpi_force) { | |
1349 | printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n", | |
1350 | d->ident); | |
1351 | acpi_disable_pci(); | |
1352 | } | |
1353 | return 0; | |
1354 | } | |
aea00143 | 1355 | |
1855256c | 1356 | static int __init dmi_disable_acpi(const struct dmi_system_id *d) |
aea00143 AP |
1357 | { |
1358 | if (!acpi_force) { | |
4be44fcd | 1359 | printk(KERN_NOTICE "%s detected: acpi off\n", d->ident); |
aea00143 AP |
1360 | disable_acpi(); |
1361 | } else { | |
1362 | printk(KERN_NOTICE | |
1363 | "Warning: DMI blacklist says broken, but acpi forced\n"); | |
1364 | } | |
1365 | return 0; | |
1366 | } | |
1367 | ||
e2079c43 | 1368 | /* |
ae10ccdc | 1369 | * Force ignoring BIOS IRQ0 override |
e2079c43 RW |
1370 | */ |
1371 | static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d) | |
1372 | { | |
8d89adf4 | 1373 | if (!acpi_skip_timer_override) { |
ae10ccdc | 1374 | pr_notice("%s detected: Ignoring BIOS IRQ0 override\n", |
8d89adf4 IM |
1375 | d->ident); |
1376 | acpi_skip_timer_override = 1; | |
1377 | } | |
e2079c43 RW |
1378 | return 0; |
1379 | } | |
1380 | ||
7486341a LA |
1381 | /* |
1382 | * ACPI offers an alternative platform interface model that removes | |
1383 | * ACPI hardware requirements for platforms that do not implement | |
1384 | * the PC Architecture. | |
1385 | * | |
1386 | * We initialize the Hardware-reduced ACPI model here: | |
1387 | */ | |
50beba07 AS |
1388 | void __init acpi_generic_reduced_hw_init(void) |
1389 | { | |
1390 | /* | |
1391 | * Override x86_init functions and bypass legacy PIC in | |
1392 | * hardware reduced ACPI mode. | |
1393 | */ | |
1394 | x86_init.timers.timer_init = x86_init_noop; | |
1395 | x86_init.irqs.pre_vector_init = x86_init_noop; | |
1396 | legacy_pic = &null_legacy_pic; | |
1397 | } | |
1398 | ||
7486341a LA |
1399 | static void __init acpi_reduced_hw_init(void) |
1400 | { | |
50beba07 | 1401 | if (acpi_gbl_reduced_hardware) |
81b53e5f | 1402 | x86_init.acpi.reduced_hw_early_init(); |
7486341a LA |
1403 | } |
1404 | ||
aea00143 AP |
1405 | /* |
1406 | * If your system is blacklisted here, but you find that acpi=force | |
5b4c0b6f | 1407 | * works for you, please contact linux-acpi@vger.kernel.org |
aea00143 | 1408 | */ |
6faadbbb | 1409 | static const struct dmi_system_id acpi_dmi_table[] __initconst = { |
aea00143 AP |
1410 | /* |
1411 | * Boxes that need ACPI disabled | |
1412 | */ | |
1413 | { | |
4be44fcd LB |
1414 | .callback = dmi_disable_acpi, |
1415 | .ident = "IBM Thinkpad", | |
1416 | .matches = { | |
1417 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1418 | DMI_MATCH(DMI_BOARD_NAME, "2629H1G"), | |
1419 | }, | |
1420 | }, | |
aea00143 | 1421 | |
aea00143 AP |
1422 | /* |
1423 | * Boxes that need ACPI PCI IRQ routing disabled | |
1424 | */ | |
1425 | { | |
4be44fcd LB |
1426 | .callback = disable_acpi_irq, |
1427 | .ident = "ASUS A7V", | |
1428 | .matches = { | |
1429 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"), | |
1430 | DMI_MATCH(DMI_BOARD_NAME, "<A7V>"), | |
1431 | /* newer BIOS, Revision 1011, does work */ | |
1432 | DMI_MATCH(DMI_BIOS_VERSION, | |
1433 | "ASUS A7V ACPI BIOS Revision 1007"), | |
1434 | }, | |
1435 | }, | |
74586fca LB |
1436 | { |
1437 | /* | |
1438 | * Latest BIOS for IBM 600E (1.16) has bad pcinum | |
1439 | * for LPC bridge, which is needed for the PCI | |
1440 | * interrupt links to work. DSDT fix is in bug 5966. | |
1441 | * 2645, 2646 model numbers are shared with 600/600E/600X | |
1442 | */ | |
1443 | .callback = disable_acpi_irq, | |
1444 | .ident = "IBM Thinkpad 600 Series 2645", | |
1445 | .matches = { | |
1446 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1447 | DMI_MATCH(DMI_BOARD_NAME, "2645"), | |
1448 | }, | |
1449 | }, | |
1450 | { | |
1451 | .callback = disable_acpi_irq, | |
1452 | .ident = "IBM Thinkpad 600 Series 2646", | |
1453 | .matches = { | |
1454 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1455 | DMI_MATCH(DMI_BOARD_NAME, "2646"), | |
1456 | }, | |
1457 | }, | |
aea00143 AP |
1458 | /* |
1459 | * Boxes that need ACPI PCI IRQ routing and PCI scan disabled | |
1460 | */ | |
4be44fcd LB |
1461 | { /* _BBN 0 bug */ |
1462 | .callback = disable_acpi_pci, | |
1463 | .ident = "ASUS PR-DLS", | |
1464 | .matches = { | |
1465 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1466 | DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"), | |
1467 | DMI_MATCH(DMI_BIOS_VERSION, | |
1468 | "ASUS PR-DLS ACPI BIOS Revision 1010"), | |
1469 | DMI_MATCH(DMI_BIOS_DATE, "03/21/2003") | |
1470 | }, | |
1471 | }, | |
aea00143 | 1472 | { |
4be44fcd LB |
1473 | .callback = disable_acpi_pci, |
1474 | .ident = "Acer TravelMate 36x Laptop", | |
1475 | .matches = { | |
1476 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
1477 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), | |
1478 | }, | |
1479 | }, | |
35af2821 AH |
1480 | {} |
1481 | }; | |
1482 | ||
1483 | /* second table for DMI checks that should run after early-quirks */ | |
6faadbbb | 1484 | static const struct dmi_system_id acpi_dmi_table_late[] __initconst = { |
e2079c43 RW |
1485 | /* |
1486 | * HP laptops which use a DSDT reporting as HP/SB400/10000, | |
1487 | * which includes some code which overrides all temperature | |
1488 | * trip points to 16C if the INTIN2 input of the I/O APIC | |
1489 | * is enabled. This input is incorrectly designated the | |
1490 | * ISA IRQ 0 via an interrupt source override even though | |
1491 | * it is wired to the output of the master 8259A and INTIN0 | |
ae10ccdc | 1492 | * is not connected at all. Force ignoring BIOS IRQ0 |
e2079c43 RW |
1493 | * override in that cases. |
1494 | */ | |
e84956f9 RW |
1495 | { |
1496 | .callback = dmi_ignore_irq0_timer_override, | |
1497 | .ident = "HP nx6115 laptop", | |
1498 | .matches = { | |
1499 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1500 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6115"), | |
1501 | }, | |
1502 | }, | |
e2079c43 RW |
1503 | { |
1504 | .callback = dmi_ignore_irq0_timer_override, | |
1505 | .ident = "HP NX6125 laptop", | |
1506 | .matches = { | |
1507 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1508 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6125"), | |
1509 | }, | |
1510 | }, | |
1511 | { | |
1512 | .callback = dmi_ignore_irq0_timer_override, | |
1513 | .ident = "HP NX6325 laptop", | |
1514 | .matches = { | |
1515 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1516 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6325"), | |
1517 | }, | |
1518 | }, | |
e84956f9 RW |
1519 | { |
1520 | .callback = dmi_ignore_irq0_timer_override, | |
1521 | .ident = "HP 6715b laptop", | |
1522 | .matches = { | |
1523 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1524 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"), | |
1525 | }, | |
1526 | }, | |
f6b54f08 FT |
1527 | { |
1528 | .callback = dmi_ignore_irq0_timer_override, | |
1529 | .ident = "FUJITSU SIEMENS", | |
1530 | .matches = { | |
1531 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), | |
1532 | DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"), | |
1533 | }, | |
1534 | }, | |
4be44fcd | 1535 | {} |
aea00143 AP |
1536 | }; |
1537 | ||
1da177e4 LT |
1538 | /* |
1539 | * acpi_boot_table_init() and acpi_boot_init() | |
1540 | * called from setup_arch(), always. | |
1541 | * 1. checksums all tables | |
1542 | * 2. enumerates lapics | |
1543 | * 3. enumerates io-apics | |
1544 | * | |
1545 | * acpi_table_init() is separate to allow reading SRAT without | |
1546 | * other side effects. | |
1547 | * | |
1548 | * side effects of acpi_boot_init: | |
1549 | * acpi_lapic = 1 if LAPIC found | |
1550 | * acpi_ioapic = 1 if IOAPIC found | |
1551 | * if (acpi_lapic && acpi_ioapic) smp_found_config = 1; | |
1552 | * if acpi_blacklisted() acpi_disabled = 1; | |
1553 | * acpi_irq_model=... | |
1554 | * ... | |
1da177e4 LT |
1555 | */ |
1556 | ||
8558e394 | 1557 | void __init acpi_boot_table_init(void) |
1da177e4 | 1558 | { |
aea00143 | 1559 | dmi_check_system(acpi_dmi_table); |
aea00143 | 1560 | |
1da177e4 LT |
1561 | /* |
1562 | * If acpi_disabled, bail out | |
1da177e4 | 1563 | */ |
68ca4069 | 1564 | if (acpi_disabled) |
0f61aaa4 | 1565 | return; |
1da177e4 | 1566 | |
5f3b1a8b | 1567 | /* |
1da177e4 LT |
1568 | * Initialize the ACPI boot-time table parser. |
1569 | */ | |
8558e394 | 1570 | if (acpi_table_init()) { |
1da177e4 | 1571 | disable_acpi(); |
8558e394 | 1572 | return; |
1da177e4 | 1573 | } |
1da177e4 | 1574 | |
5f3b1a8b | 1575 | acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf); |
1da177e4 LT |
1576 | |
1577 | /* | |
1578 | * blacklist may disable ACPI entirely | |
1579 | */ | |
8558e394 | 1580 | if (acpi_blacklisted()) { |
1da177e4 LT |
1581 | if (acpi_force) { |
1582 | printk(KERN_WARNING PREFIX "acpi=force override\n"); | |
1583 | } else { | |
1584 | printk(KERN_WARNING PREFIX "Disabling ACPI support\n"); | |
1585 | disable_acpi(); | |
8558e394 | 1586 | return; |
1da177e4 LT |
1587 | } |
1588 | } | |
cbf9bd60 YL |
1589 | } |
1590 | ||
1591 | int __init early_acpi_boot_init(void) | |
1592 | { | |
1593 | /* | |
1594 | * If acpi_disabled, bail out | |
cbf9bd60 | 1595 | */ |
68ca4069 | 1596 | if (acpi_disabled) |
cbf9bd60 YL |
1597 | return 1; |
1598 | ||
1599 | /* | |
1600 | * Process the Multiple APIC Description Table (MADT), if present | |
1601 | */ | |
1602 | early_acpi_process_madt(); | |
1da177e4 | 1603 | |
7486341a LA |
1604 | /* |
1605 | * Hardware-reduced ACPI mode initialization: | |
1606 | */ | |
1607 | acpi_reduced_hw_init(); | |
1608 | ||
1da177e4 LT |
1609 | return 0; |
1610 | } | |
1611 | ||
1da177e4 LT |
1612 | int __init acpi_boot_init(void) |
1613 | { | |
35af2821 AH |
1614 | /* those are executed after early-quirks are executed */ |
1615 | dmi_check_system(acpi_dmi_table_late); | |
1616 | ||
1da177e4 LT |
1617 | /* |
1618 | * If acpi_disabled, bail out | |
1da177e4 | 1619 | */ |
68ca4069 | 1620 | if (acpi_disabled) |
4be44fcd | 1621 | return 1; |
1da177e4 | 1622 | |
5f3b1a8b | 1623 | acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf); |
1da177e4 LT |
1624 | |
1625 | /* | |
1626 | * set sci_int and PM timer address | |
1627 | */ | |
ceb6c468 | 1628 | acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt); |
1da177e4 LT |
1629 | |
1630 | /* | |
1631 | * Process the Multiple APIC Description Table (MADT), if present | |
1632 | */ | |
1633 | acpi_process_madt(); | |
1634 | ||
5f3b1a8b | 1635 | acpi_table_parse(ACPI_SIG_HPET, acpi_parse_hpet); |
7b0a9114 DY |
1636 | if (IS_ENABLED(CONFIG_ACPI_BGRT)) |
1637 | acpi_table_parse(ACPI_SIG_BGRT, acpi_parse_bgrt); | |
1da177e4 | 1638 | |
b72d0db9 TG |
1639 | if (!acpi_noirq) |
1640 | x86_init.pci.init = pci_acpi_init; | |
1641 | ||
0231d000 PB |
1642 | /* Do not enable ACPI SPCR console by default */ |
1643 | acpi_parse_spcr(earlycon_acpi_spcr_enable, false); | |
1da177e4 LT |
1644 | return 0; |
1645 | } | |
1a3f239d RR |
1646 | |
1647 | static int __init parse_acpi(char *arg) | |
1648 | { | |
1649 | if (!arg) | |
1650 | return -EINVAL; | |
1651 | ||
1652 | /* "acpi=off" disables both ACPI table parsing and interpreter */ | |
1653 | if (strcmp(arg, "off") == 0) { | |
1654 | disable_acpi(); | |
1655 | } | |
1656 | /* acpi=force to over-ride black-list */ | |
1657 | else if (strcmp(arg, "force") == 0) { | |
1658 | acpi_force = 1; | |
1a3f239d RR |
1659 | acpi_disabled = 0; |
1660 | } | |
1661 | /* acpi=strict disables out-of-spec workarounds */ | |
1662 | else if (strcmp(arg, "strict") == 0) { | |
1663 | acpi_strict = 1; | |
1664 | } | |
237889bf ZY |
1665 | /* acpi=rsdt use RSDT instead of XSDT */ |
1666 | else if (strcmp(arg, "rsdt") == 0) { | |
fab46105 | 1667 | acpi_gbl_do_not_use_xsdt = TRUE; |
237889bf | 1668 | } |
1a3f239d RR |
1669 | /* "acpi=noirq" disables ACPI interrupt routing */ |
1670 | else if (strcmp(arg, "noirq") == 0) { | |
1671 | acpi_noirq_set(); | |
aa2110cb LM |
1672 | } |
1673 | /* "acpi=copy_dsdt" copys DSDT */ | |
1674 | else if (strcmp(arg, "copy_dsdt") == 0) { | |
1675 | acpi_gbl_copy_dsdt_locally = 1; | |
9ad95879 NR |
1676 | } |
1677 | /* "acpi=nocmcff" disables FF mode for corrected errors */ | |
1678 | else if (strcmp(arg, "nocmcff") == 0) { | |
1679 | acpi_disable_cmcff = 1; | |
1a3f239d RR |
1680 | } else { |
1681 | /* Core will printk when we return error. */ | |
1682 | return -EINVAL; | |
1683 | } | |
1684 | return 0; | |
1685 | } | |
1686 | early_param("acpi", parse_acpi); | |
1687 | ||
1688 | /* FIXME: Using pci= for an ACPI parameter is a travesty. */ | |
1689 | static int __init parse_pci(char *arg) | |
1690 | { | |
1691 | if (arg && strcmp(arg, "noacpi") == 0) | |
1692 | acpi_disable_pci(); | |
1693 | return 0; | |
1694 | } | |
1695 | early_param("pci", parse_pci); | |
1696 | ||
3c999f14 YL |
1697 | int __init acpi_mps_check(void) |
1698 | { | |
1699 | #if defined(CONFIG_X86_LOCAL_APIC) && !defined(CONFIG_X86_MPPARSE) | |
1700 | /* mptable code is not built-in*/ | |
1701 | if (acpi_disabled || acpi_noirq) { | |
1702 | printk(KERN_WARNING "MPS support code is not built-in.\n" | |
1703 | "Using acpi=off or acpi=noirq or pci=noacpi " | |
1704 | "may have problem\n"); | |
1705 | return 1; | |
1706 | } | |
1707 | #endif | |
1708 | return 0; | |
1709 | } | |
1710 | ||
1a3f239d RR |
1711 | #ifdef CONFIG_X86_IO_APIC |
1712 | static int __init parse_acpi_skip_timer_override(char *arg) | |
1713 | { | |
1714 | acpi_skip_timer_override = 1; | |
1715 | return 0; | |
1716 | } | |
1717 | early_param("acpi_skip_timer_override", parse_acpi_skip_timer_override); | |
fa18f477 AK |
1718 | |
1719 | static int __init parse_acpi_use_timer_override(char *arg) | |
1720 | { | |
1721 | acpi_use_timer_override = 1; | |
1722 | return 0; | |
1723 | } | |
1724 | early_param("acpi_use_timer_override", parse_acpi_use_timer_override); | |
1a3f239d RR |
1725 | #endif /* CONFIG_X86_IO_APIC */ |
1726 | ||
1727 | static int __init setup_acpi_sci(char *s) | |
1728 | { | |
1729 | if (!s) | |
1730 | return -EINVAL; | |
1731 | if (!strcmp(s, "edge")) | |
5f3b1a8b AS |
1732 | acpi_sci_flags = ACPI_MADT_TRIGGER_EDGE | |
1733 | (acpi_sci_flags & ~ACPI_MADT_TRIGGER_MASK); | |
1a3f239d | 1734 | else if (!strcmp(s, "level")) |
5f3b1a8b AS |
1735 | acpi_sci_flags = ACPI_MADT_TRIGGER_LEVEL | |
1736 | (acpi_sci_flags & ~ACPI_MADT_TRIGGER_MASK); | |
1a3f239d | 1737 | else if (!strcmp(s, "high")) |
5f3b1a8b AS |
1738 | acpi_sci_flags = ACPI_MADT_POLARITY_ACTIVE_HIGH | |
1739 | (acpi_sci_flags & ~ACPI_MADT_POLARITY_MASK); | |
1a3f239d | 1740 | else if (!strcmp(s, "low")) |
5f3b1a8b AS |
1741 | acpi_sci_flags = ACPI_MADT_POLARITY_ACTIVE_LOW | |
1742 | (acpi_sci_flags & ~ACPI_MADT_POLARITY_MASK); | |
1a3f239d RR |
1743 | else |
1744 | return -EINVAL; | |
1745 | return 0; | |
1746 | } | |
1747 | early_param("acpi_sci", setup_acpi_sci); | |
d0a9081b AM |
1748 | |
1749 | int __acpi_acquire_global_lock(unsigned int *lock) | |
1750 | { | |
1751 | unsigned int old, new, val; | |
1752 | do { | |
1753 | old = *lock; | |
1754 | new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1)); | |
1755 | val = cmpxchg(lock, old, new); | |
1756 | } while (unlikely (val != old)); | |
1757 | return (new < 3) ? -1 : 0; | |
1758 | } | |
1759 | ||
1760 | int __acpi_release_global_lock(unsigned int *lock) | |
1761 | { | |
1762 | unsigned int old, new, val; | |
1763 | do { | |
1764 | old = *lock; | |
1765 | new = old & ~0x3; | |
1766 | val = cmpxchg(lock, old, new); | |
1767 | } while (unlikely (val != old)); | |
1768 | return old & 0x1; | |
1769 | } | |
8e30524d TR |
1770 | |
1771 | void __init arch_reserve_mem_area(acpi_physical_address addr, size_t size) | |
1772 | { | |
09821ff1 | 1773 | e820__range_add(addr, size, E820_TYPE_ACPI); |
6464d294 | 1774 | e820__update_table_print(); |
8e30524d | 1775 | } |
e7b66d16 JG |
1776 | |
1777 | u64 x86_default_get_root_pointer(void) | |
1778 | { | |
1779 | return boot_params.hdr.acpi_rsdp_addr; | |
1780 | } |