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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> |
1da177e4 | 38 | |
f7a0c786 | 39 | #include <asm/irqdomain.h> |
b72d0db9 | 40 | #include <asm/pci_x86.h> |
1da177e4 LT |
41 | #include <asm/pgtable.h> |
42 | #include <asm/io_apic.h> | |
43 | #include <asm/apic.h> | |
44 | #include <asm/io.h> | |
1da177e4 | 45 | #include <asm/mpspec.h> |
dfac2189 | 46 | #include <asm/smp.h> |
95d76acc | 47 | #include <asm/i8259.h> |
1da177e4 | 48 | |
d6a77ead | 49 | #include "sleep.h" /* To include x86_acpi_suspend_lowlevel */ |
e8924acb | 50 | static int __initdata acpi_force = 0; |
c636f753 | 51 | int acpi_disabled; |
df3bb57d AK |
52 | EXPORT_SYMBOL(acpi_disabled); |
53 | ||
1da177e4 | 54 | #ifdef CONFIG_X86_64 |
1dcdd3d1 | 55 | # include <asm/proto.h> |
4be44fcd | 56 | #endif /* X86 */ |
1da177e4 | 57 | |
1da177e4 LT |
58 | #define PREFIX "ACPI: " |
59 | ||
90d53909 | 60 | int acpi_noirq; /* skip ACPI IRQ initialization */ |
6e4be1ff YL |
61 | int acpi_pci_disabled; /* skip ACPI PCI scan and IRQ initialization */ |
62 | EXPORT_SYMBOL(acpi_pci_disabled); | |
1da177e4 LT |
63 | |
64 | int acpi_lapic; | |
65 | int acpi_ioapic; | |
66 | int acpi_strict; | |
9ad95879 | 67 | int acpi_disable_cmcff; |
1da177e4 | 68 | |
5f3b1a8b | 69 | u8 acpi_sci_flags __initdata; |
1da177e4 LT |
70 | int acpi_sci_override_gsi __initdata; |
71 | int acpi_skip_timer_override __initdata; | |
fa18f477 | 72 | int acpi_use_timer_override __initdata; |
7f74f8f2 | 73 | int acpi_fix_pin2_polarity __initdata; |
1da177e4 LT |
74 | |
75 | #ifdef CONFIG_X86_LOCAL_APIC | |
76 | static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; | |
77 | #endif | |
78 | ||
5da2fd26 JL |
79 | /* |
80 | * Locks related to IOAPIC hotplug | |
81 | * Hotplug side: | |
82 | * ->device_hotplug_lock | |
83 | * ->acpi_ioapic_lock | |
84 | * ->ioapic_lock | |
85 | * Interrupt mapping side: | |
86 | * ->acpi_ioapic_lock | |
87 | * ->ioapic_mutex | |
88 | * ->ioapic_lock | |
89 | */ | |
90 | static DEFINE_MUTEX(acpi_ioapic_lock); | |
91 | ||
1da177e4 LT |
92 | /* -------------------------------------------------------------------------- |
93 | Boot-time Configuration | |
94 | -------------------------------------------------------------------------- */ | |
95 | ||
96 | /* | |
97 | * The default interrupt routing model is PIC (8259). This gets | |
27b46d76 | 98 | * overridden if IOAPICs are enumerated (below). |
1da177e4 | 99 | */ |
4be44fcd | 100 | enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC; |
1da177e4 | 101 | |
1da177e4 | 102 | |
988856ee EB |
103 | /* |
104 | * ISA irqs by default are the first 16 gsis but can be | |
105 | * any gsi as specified by an interrupt source override. | |
106 | */ | |
107 | static u32 isa_irq_to_gsi[NR_IRQS_LEGACY] __read_mostly = { | |
108 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 | |
109 | }; | |
110 | ||
2c0a6894 | 111 | #define ACPI_INVALID_GSI INT_MIN |
988856ee | 112 | |
1da177e4 | 113 | /* |
45f1330a ZY |
114 | * This is just a simple wrapper around early_ioremap(), |
115 | * with sanity checks for phys == 0 and size == 0. | |
1da177e4 | 116 | */ |
2fdf0741 | 117 | char *__init __acpi_map_table(unsigned long phys, unsigned long size) |
1da177e4 | 118 | { |
1da177e4 | 119 | |
f34fa82b YL |
120 | if (!phys || !size) |
121 | return NULL; | |
122 | ||
7d97277b YL |
123 | return early_ioremap(phys, size); |
124 | } | |
45f1330a | 125 | |
7d97277b YL |
126 | void __init __acpi_unmap_table(char *map, unsigned long size) |
127 | { | |
128 | if (!map || !size) | |
129 | return; | |
1da177e4 | 130 | |
7d97277b | 131 | early_iounmap(map, size); |
1da177e4 | 132 | } |
1da177e4 | 133 | |
1da177e4 | 134 | #ifdef CONFIG_X86_LOCAL_APIC |
15a58ed1 | 135 | static int __init acpi_parse_madt(struct acpi_table_header *table) |
1da177e4 | 136 | { |
4be44fcd | 137 | struct acpi_table_madt *madt = NULL; |
1da177e4 | 138 | |
93984fbd | 139 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
1da177e4 LT |
140 | return -EINVAL; |
141 | ||
15a58ed1 | 142 | madt = (struct acpi_table_madt *)table; |
1da177e4 LT |
143 | if (!madt) { |
144 | printk(KERN_WARNING PREFIX "Unable to map MADT\n"); | |
145 | return -ENODEV; | |
146 | } | |
147 | ||
ad363f80 AS |
148 | if (madt->address) { |
149 | acpi_lapic_addr = (u64) madt->address; | |
1da177e4 LT |
150 | |
151 | printk(KERN_DEBUG PREFIX "Local APIC address 0x%08x\n", | |
ad363f80 | 152 | madt->address); |
1da177e4 LT |
153 | } |
154 | ||
306db03b IM |
155 | default_acpi_madt_oem_check(madt->header.oem_id, |
156 | madt->header.oem_table_id); | |
4be44fcd | 157 | |
1da177e4 LT |
158 | return 0; |
159 | } | |
160 | ||
7e1f85f9 JL |
161 | /** |
162 | * acpi_register_lapic - register a local apic and generates a logic cpu number | |
163 | * @id: local apic id to register | |
3e9e57fa | 164 | * @acpiid: ACPI id to register |
7e1f85f9 JL |
165 | * @enabled: this cpu is enabled or not |
166 | * | |
167 | * Returns the logic cpu number which maps to the local apic | |
168 | */ | |
3e9e57fa | 169 | static int acpi_register_lapic(int id, u32 acpiid, u8 enabled) |
dfac2189 | 170 | { |
fb3bbd6a | 171 | unsigned int ver = 0; |
3e9e57fa | 172 | int cpu; |
fb3bbd6a | 173 | |
82982d72 | 174 | if (id >= MAX_LOCAL_APIC) { |
d3bd0588 | 175 | printk(KERN_INFO PREFIX "skipped apicid that is too big\n"); |
7e1f85f9 | 176 | return -EINVAL; |
d3bd0588 YL |
177 | } |
178 | ||
dfac2189 AS |
179 | if (!enabled) { |
180 | ++disabled_cpus; | |
7e1f85f9 | 181 | return -EINVAL; |
dfac2189 AS |
182 | } |
183 | ||
fb3bbd6a | 184 | if (boot_cpu_physical_apicid != -1U) |
720aa4d9 | 185 | ver = boot_cpu_apic_version; |
fb3bbd6a | 186 | |
3e9e57fa VK |
187 | cpu = generic_processor_info(id, ver); |
188 | if (cpu >= 0) | |
189 | early_per_cpu(x86_cpu_to_acpiid, cpu) = acpiid; | |
190 | ||
191 | return cpu; | |
dfac2189 AS |
192 | } |
193 | ||
7237d3de SS |
194 | static int __init |
195 | acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end) | |
196 | { | |
197 | struct acpi_madt_local_x2apic *processor = NULL; | |
a35fd282 YL |
198 | int apic_id; |
199 | u8 enabled; | |
7237d3de SS |
200 | |
201 | processor = (struct acpi_madt_local_x2apic *)header; | |
202 | ||
203 | if (BAD_MADT_ENTRY(processor, end)) | |
204 | return -EINVAL; | |
205 | ||
206 | acpi_table_print_madt_entry(header); | |
207 | ||
a35fd282 YL |
208 | apic_id = processor->local_apic_id; |
209 | enabled = processor->lapic_flags & ACPI_MADT_ENABLED; | |
7237d3de SS |
210 | #ifdef CONFIG_X86_X2APIC |
211 | /* | |
212 | * We need to register disabled CPU as well to permit | |
213 | * counting disabled CPUs. This allows us to size | |
214 | * cpus_possible_map more accurately, to permit | |
215 | * to not preallocating memory for all NR_CPUS | |
216 | * when we use CPU hotplug. | |
217 | */ | |
b7157acf | 218 | if (!apic->apic_id_valid(apic_id) && enabled) |
a35fd282 YL |
219 | printk(KERN_WARNING PREFIX "x2apic entry ignored\n"); |
220 | else | |
3e9e57fa | 221 | acpi_register_lapic(apic_id, processor->uid, enabled); |
7237d3de SS |
222 | #else |
223 | printk(KERN_WARNING PREFIX "x2apic entry ignored\n"); | |
224 | #endif | |
225 | ||
226 | return 0; | |
227 | } | |
228 | ||
1da177e4 | 229 | static int __init |
5f3b1a8b | 230 | acpi_parse_lapic(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 231 | { |
5f3b1a8b | 232 | struct acpi_madt_local_apic *processor = NULL; |
1da177e4 | 233 | |
5f3b1a8b | 234 | processor = (struct acpi_madt_local_apic *)header; |
1da177e4 LT |
235 | |
236 | if (BAD_MADT_ENTRY(processor, end)) | |
237 | return -EINVAL; | |
238 | ||
239 | acpi_table_print_madt_entry(header); | |
240 | ||
7f66ae48 AR |
241 | /* |
242 | * We need to register disabled CPU as well to permit | |
243 | * counting disabled CPUs. This allows us to size | |
244 | * cpus_possible_map more accurately, to permit | |
245 | * to not preallocating memory for all NR_CPUS | |
246 | * when we use CPU hotplug. | |
247 | */ | |
dfac2189 | 248 | acpi_register_lapic(processor->id, /* APIC ID */ |
3e9e57fa | 249 | processor->processor_id, /* ACPI ID */ |
dfac2189 | 250 | processor->lapic_flags & ACPI_MADT_ENABLED); |
1da177e4 LT |
251 | |
252 | return 0; | |
253 | } | |
254 | ||
ac049c1d JS |
255 | static int __init |
256 | acpi_parse_sapic(struct acpi_subtable_header *header, const unsigned long end) | |
257 | { | |
258 | struct acpi_madt_local_sapic *processor = NULL; | |
259 | ||
260 | processor = (struct acpi_madt_local_sapic *)header; | |
261 | ||
262 | if (BAD_MADT_ENTRY(processor, end)) | |
263 | return -EINVAL; | |
264 | ||
265 | acpi_table_print_madt_entry(header); | |
266 | ||
dfac2189 | 267 | acpi_register_lapic((processor->id << 8) | processor->eid,/* APIC ID */ |
3e9e57fa | 268 | processor->processor_id, /* ACPI ID */ |
dfac2189 | 269 | processor->lapic_flags & ACPI_MADT_ENABLED); |
ac049c1d JS |
270 | |
271 | return 0; | |
272 | } | |
273 | ||
1da177e4 | 274 | static int __init |
5f3b1a8b | 275 | acpi_parse_lapic_addr_ovr(struct acpi_subtable_header * header, |
4be44fcd | 276 | const unsigned long end) |
1da177e4 | 277 | { |
5f3b1a8b | 278 | struct acpi_madt_local_apic_override *lapic_addr_ovr = NULL; |
1da177e4 | 279 | |
5f3b1a8b | 280 | lapic_addr_ovr = (struct acpi_madt_local_apic_override *)header; |
1da177e4 LT |
281 | |
282 | if (BAD_MADT_ENTRY(lapic_addr_ovr, end)) | |
283 | return -EINVAL; | |
284 | ||
285 | acpi_lapic_addr = lapic_addr_ovr->address; | |
286 | ||
287 | return 0; | |
288 | } | |
289 | ||
7237d3de SS |
290 | static int __init |
291 | acpi_parse_x2apic_nmi(struct acpi_subtable_header *header, | |
292 | const unsigned long end) | |
293 | { | |
294 | struct acpi_madt_local_x2apic_nmi *x2apic_nmi = NULL; | |
295 | ||
296 | x2apic_nmi = (struct acpi_madt_local_x2apic_nmi *)header; | |
297 | ||
298 | if (BAD_MADT_ENTRY(x2apic_nmi, end)) | |
299 | return -EINVAL; | |
300 | ||
301 | acpi_table_print_madt_entry(header); | |
302 | ||
303 | if (x2apic_nmi->lint != 1) | |
304 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
305 | ||
306 | return 0; | |
307 | } | |
308 | ||
1da177e4 | 309 | static int __init |
5f3b1a8b | 310 | acpi_parse_lapic_nmi(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 311 | { |
5f3b1a8b | 312 | struct acpi_madt_local_apic_nmi *lapic_nmi = NULL; |
1da177e4 | 313 | |
5f3b1a8b | 314 | lapic_nmi = (struct acpi_madt_local_apic_nmi *)header; |
1da177e4 LT |
315 | |
316 | if (BAD_MADT_ENTRY(lapic_nmi, end)) | |
317 | return -EINVAL; | |
318 | ||
319 | acpi_table_print_madt_entry(header); | |
320 | ||
321 | if (lapic_nmi->lint != 1) | |
322 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
323 | ||
324 | return 0; | |
325 | } | |
326 | ||
4be44fcd | 327 | #endif /*CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 328 | |
8466361a | 329 | #ifdef CONFIG_X86_IO_APIC |
8d7cdcb9 JL |
330 | #define MP_ISA_BUS 0 |
331 | ||
332 | static void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, | |
333 | u32 gsi) | |
334 | { | |
335 | int ioapic; | |
336 | int pin; | |
337 | struct mpc_intsrc mp_irq; | |
338 | ||
339 | /* | |
340 | * Convert 'gsi' to 'ioapic.pin'. | |
341 | */ | |
342 | ioapic = mp_find_ioapic(gsi); | |
343 | if (ioapic < 0) | |
344 | return; | |
345 | pin = mp_find_ioapic_pin(ioapic, gsi); | |
346 | ||
347 | /* | |
348 | * TBD: This check is for faulty timer entries, where the override | |
349 | * erroneously sets the trigger to level, resulting in a HUGE | |
350 | * increase of timer interrupts! | |
351 | */ | |
352 | if ((bus_irq == 0) && (trigger == 3)) | |
353 | trigger = 1; | |
354 | ||
355 | mp_irq.type = MP_INTSRC; | |
356 | mp_irq.irqtype = mp_INT; | |
357 | mp_irq.irqflag = (trigger << 2) | polarity; | |
358 | mp_irq.srcbus = MP_ISA_BUS; | |
359 | mp_irq.srcbusirq = bus_irq; /* IRQ */ | |
360 | mp_irq.dstapic = mpc_ioapic_id(ioapic); /* APIC ID */ | |
361 | mp_irq.dstirq = pin; /* INTIN# */ | |
362 | ||
363 | mp_save_irq(&mp_irq); | |
364 | ||
2e0ad0e2 JL |
365 | /* |
366 | * Reset default identity mapping if gsi is also an legacy IRQ, | |
367 | * otherwise there will be more than one entry with the same GSI | |
368 | * and acpi_isa_irq_to_gsi() may give wrong result. | |
369 | */ | |
95d76acc | 370 | if (gsi < nr_legacy_irqs() && isa_irq_to_gsi[gsi] == gsi) |
2e0ad0e2 | 371 | isa_irq_to_gsi[gsi] = ACPI_INVALID_GSI; |
8d7cdcb9 JL |
372 | isa_irq_to_gsi[bus_irq] = gsi; |
373 | } | |
374 | ||
375 | static int mp_config_acpi_gsi(struct device *dev, u32 gsi, int trigger, | |
376 | int polarity) | |
377 | { | |
378 | #ifdef CONFIG_X86_MPPARSE | |
379 | struct mpc_intsrc mp_irq; | |
380 | struct pci_dev *pdev; | |
381 | unsigned char number; | |
382 | unsigned int devfn; | |
383 | int ioapic; | |
384 | u8 pin; | |
385 | ||
386 | if (!acpi_ioapic) | |
387 | return 0; | |
388 | if (!dev || !dev_is_pci(dev)) | |
389 | return 0; | |
390 | ||
391 | pdev = to_pci_dev(dev); | |
392 | number = pdev->bus->number; | |
393 | devfn = pdev->devfn; | |
394 | pin = pdev->pin; | |
395 | /* print the entry should happen on mptable identically */ | |
396 | mp_irq.type = MP_INTSRC; | |
397 | mp_irq.irqtype = mp_INT; | |
398 | mp_irq.irqflag = (trigger == ACPI_EDGE_SENSITIVE ? 4 : 0x0c) | | |
399 | (polarity == ACPI_ACTIVE_HIGH ? 1 : 3); | |
400 | mp_irq.srcbus = number; | |
401 | mp_irq.srcbusirq = (((devfn >> 3) & 0x1f) << 2) | ((pin - 1) & 3); | |
402 | ioapic = mp_find_ioapic(gsi); | |
403 | mp_irq.dstapic = mpc_ioapic_id(ioapic); | |
404 | mp_irq.dstirq = mp_find_ioapic_pin(ioapic, gsi); | |
405 | ||
406 | mp_save_irq(&mp_irq); | |
407 | #endif | |
408 | return 0; | |
409 | } | |
410 | ||
1da177e4 | 411 | static int __init |
5f3b1a8b | 412 | acpi_parse_ioapic(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 413 | { |
5f3b1a8b | 414 | struct acpi_madt_io_apic *ioapic = NULL; |
ca7e28aa JL |
415 | struct ioapic_domain_cfg cfg = { |
416 | .type = IOAPIC_DOMAIN_DYNAMIC, | |
f7a0c786 | 417 | .ops = &mp_ioapic_irqdomain_ops, |
ca7e28aa | 418 | }; |
1da177e4 | 419 | |
5f3b1a8b | 420 | ioapic = (struct acpi_madt_io_apic *)header; |
1da177e4 LT |
421 | |
422 | if (BAD_MADT_ENTRY(ioapic, end)) | |
423 | return -EINVAL; | |
4be44fcd | 424 | |
1da177e4 LT |
425 | acpi_table_print_madt_entry(header); |
426 | ||
ca7e28aa JL |
427 | /* Statically assign IRQ numbers for IOAPICs hosting legacy IRQs */ |
428 | if (ioapic->global_irq_base < nr_legacy_irqs()) | |
429 | cfg.type = IOAPIC_DOMAIN_LEGACY; | |
430 | ||
431 | mp_register_ioapic(ioapic->id, ioapic->address, ioapic->global_irq_base, | |
432 | &cfg); | |
4be44fcd | 433 | |
1da177e4 LT |
434 | return 0; |
435 | } | |
436 | ||
437 | /* | |
438 | * Parse Interrupt Source Override for the ACPI SCI | |
439 | */ | |
9d2062b8 | 440 | static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger, u32 gsi) |
1da177e4 LT |
441 | { |
442 | if (trigger == 0) /* compatible SCI trigger is level */ | |
443 | trigger = 3; | |
444 | ||
445 | if (polarity == 0) /* compatible SCI polarity is low */ | |
446 | polarity = 3; | |
447 | ||
448 | /* Command-line over-ride via acpi_sci= */ | |
5f3b1a8b AS |
449 | if (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) |
450 | trigger = (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) >> 2; | |
1da177e4 | 451 | |
5f3b1a8b AS |
452 | if (acpi_sci_flags & ACPI_MADT_POLARITY_MASK) |
453 | polarity = acpi_sci_flags & ACPI_MADT_POLARITY_MASK; | |
1da177e4 | 454 | |
9d2062b8 | 455 | mp_override_legacy_irq(bus_irq, polarity, trigger, gsi); |
1da177e4 LT |
456 | |
457 | /* | |
458 | * stash over-ride to indicate we've been here | |
cee324b1 | 459 | * and for later update of acpi_gbl_FADT |
1da177e4 | 460 | */ |
7bdd21ce | 461 | acpi_sci_override_gsi = gsi; |
1da177e4 LT |
462 | return; |
463 | } | |
464 | ||
465 | static int __init | |
5f3b1a8b | 466 | acpi_parse_int_src_ovr(struct acpi_subtable_header * header, |
4be44fcd | 467 | const unsigned long end) |
1da177e4 | 468 | { |
5f3b1a8b | 469 | struct acpi_madt_interrupt_override *intsrc = NULL; |
1da177e4 | 470 | |
5f3b1a8b | 471 | intsrc = (struct acpi_madt_interrupt_override *)header; |
1da177e4 LT |
472 | |
473 | if (BAD_MADT_ENTRY(intsrc, end)) | |
474 | return -EINVAL; | |
475 | ||
476 | acpi_table_print_madt_entry(header); | |
477 | ||
5f3b1a8b | 478 | if (intsrc->source_irq == acpi_gbl_FADT.sci_interrupt) { |
9d2062b8 | 479 | acpi_sci_ioapic_setup(intsrc->source_irq, |
5f3b1a8b | 480 | intsrc->inti_flags & ACPI_MADT_POLARITY_MASK, |
9d2062b8 EB |
481 | (intsrc->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2, |
482 | intsrc->global_irq); | |
1da177e4 LT |
483 | return 0; |
484 | } | |
485 | ||
ae10ccdc | 486 | if (intsrc->source_irq == 0) { |
7f74f8f2 | 487 | if (acpi_skip_timer_override) { |
ae10ccdc | 488 | printk(PREFIX "BIOS IRQ0 override ignored.\n"); |
7f74f8f2 AH |
489 | return 0; |
490 | } | |
ae10ccdc FT |
491 | |
492 | if ((intsrc->global_irq == 2) && acpi_fix_pin2_polarity | |
493 | && (intsrc->inti_flags & ACPI_MADT_POLARITY_MASK)) { | |
7f74f8f2 AH |
494 | intsrc->inti_flags &= ~ACPI_MADT_POLARITY_MASK; |
495 | printk(PREFIX "BIOS IRQ0 pin2 override: forcing polarity to high active.\n"); | |
496 | } | |
1da177e4 LT |
497 | } |
498 | ||
5f3b1a8b AS |
499 | mp_override_legacy_irq(intsrc->source_irq, |
500 | intsrc->inti_flags & ACPI_MADT_POLARITY_MASK, | |
501 | (intsrc->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2, | |
502 | intsrc->global_irq); | |
1da177e4 LT |
503 | |
504 | return 0; | |
505 | } | |
506 | ||
1da177e4 | 507 | static int __init |
5f3b1a8b | 508 | acpi_parse_nmi_src(struct acpi_subtable_header * header, const unsigned long end) |
1da177e4 | 509 | { |
5f3b1a8b | 510 | struct acpi_madt_nmi_source *nmi_src = NULL; |
1da177e4 | 511 | |
5f3b1a8b | 512 | nmi_src = (struct acpi_madt_nmi_source *)header; |
1da177e4 LT |
513 | |
514 | if (BAD_MADT_ENTRY(nmi_src, end)) | |
515 | return -EINVAL; | |
516 | ||
517 | acpi_table_print_madt_entry(header); | |
518 | ||
519 | /* TBD: Support nimsrc entries? */ | |
520 | ||
521 | return 0; | |
522 | } | |
523 | ||
4be44fcd | 524 | #endif /* CONFIG_X86_IO_APIC */ |
1da177e4 | 525 | |
1da177e4 LT |
526 | /* |
527 | * acpi_pic_sci_set_trigger() | |
5f3b1a8b | 528 | * |
1da177e4 LT |
529 | * use ELCR to set PIC-mode trigger type for SCI |
530 | * | |
531 | * If a PIC-mode SCI is not recognized or gives spurious IRQ7's | |
532 | * it may require Edge Trigger -- use "acpi_sci=edge" | |
533 | * | |
534 | * Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers | |
535 | * for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge. | |
27b46d76 SA |
536 | * ECLR1 is IRQs 0-7 (IRQ 0, 1, 2 must be 0) |
537 | * ECLR2 is IRQs 8-15 (IRQ 8, 13 must be 0) | |
1da177e4 LT |
538 | */ |
539 | ||
4be44fcd | 540 | void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger) |
1da177e4 LT |
541 | { |
542 | unsigned int mask = 1 << irq; | |
543 | unsigned int old, new; | |
544 | ||
545 | /* Real old ELCR mask */ | |
546 | old = inb(0x4d0) | (inb(0x4d1) << 8); | |
547 | ||
548 | /* | |
27b46d76 | 549 | * If we use ACPI to set PCI IRQs, then we should clear ELCR |
1da177e4 LT |
550 | * since we will set it correctly as we enable the PCI irq |
551 | * routing. | |
552 | */ | |
553 | new = acpi_noirq ? old : 0; | |
554 | ||
555 | /* | |
556 | * Update SCI information in the ELCR, it isn't in the PCI | |
557 | * routing tables.. | |
558 | */ | |
559 | switch (trigger) { | |
4be44fcd | 560 | case 1: /* Edge - clear */ |
1da177e4 LT |
561 | new &= ~mask; |
562 | break; | |
4be44fcd | 563 | case 3: /* Level - set */ |
1da177e4 LT |
564 | new |= mask; |
565 | break; | |
566 | } | |
567 | ||
568 | if (old == new) | |
569 | return; | |
570 | ||
571 | printk(PREFIX "setting ELCR to %04x (from %04x)\n", new, old); | |
572 | outb(new, 0x4d0); | |
573 | outb(new >> 8, 0x4d1); | |
574 | } | |
575 | ||
6b9fb708 | 576 | int acpi_gsi_to_irq(u32 gsi, unsigned int *irqp) |
1da177e4 | 577 | { |
b568b860 JL |
578 | int rc, irq, trigger, polarity; |
579 | ||
1ea76fba JL |
580 | if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { |
581 | *irqp = gsi; | |
582 | return 0; | |
583 | } | |
584 | ||
b568b860 JL |
585 | rc = acpi_get_override_irq(gsi, &trigger, &polarity); |
586 | if (rc == 0) { | |
587 | trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE; | |
588 | polarity = polarity ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH; | |
589 | irq = acpi_register_gsi(NULL, gsi, trigger, polarity); | |
590 | if (irq >= 0) { | |
591 | *irqp = irq; | |
592 | return 0; | |
593 | } | |
6b9fb708 | 594 | } |
b568b860 JL |
595 | |
596 | return -1; | |
1da177e4 | 597 | } |
81e88fdc | 598 | EXPORT_SYMBOL_GPL(acpi_gsi_to_irq); |
1da177e4 | 599 | |
2c2df841 EB |
600 | int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi) |
601 | { | |
95d76acc | 602 | if (isa_irq < nr_legacy_irqs() && |
2e0ad0e2 | 603 | isa_irq_to_gsi[isa_irq] != ACPI_INVALID_GSI) { |
032329ee JL |
604 | *gsi = isa_irq_to_gsi[isa_irq]; |
605 | return 0; | |
606 | } | |
607 | ||
608 | return -1; | |
2c2df841 EB |
609 | } |
610 | ||
2f065aef JF |
611 | static int acpi_register_gsi_pic(struct device *dev, u32 gsi, |
612 | int trigger, int polarity) | |
1da177e4 | 613 | { |
1da177e4 LT |
614 | #ifdef CONFIG_PCI |
615 | /* | |
616 | * Make sure all (legacy) PCI IRQs are set as level-triggered. | |
617 | */ | |
2f065aef | 618 | if (trigger == ACPI_LEVEL_SENSITIVE) |
ea6cd250 | 619 | elcr_set_level_irq(gsi); |
1da177e4 LT |
620 | #endif |
621 | ||
2f065aef JF |
622 | return gsi; |
623 | } | |
624 | ||
2f82c9dc | 625 | #ifdef CONFIG_X86_LOCAL_APIC |
2f065aef JF |
626 | static int acpi_register_gsi_ioapic(struct device *dev, u32 gsi, |
627 | int trigger, int polarity) | |
628 | { | |
84245af7 | 629 | int irq = gsi; |
1da177e4 | 630 | #ifdef CONFIG_X86_IO_APIC |
46176f39 JL |
631 | int node; |
632 | struct irq_alloc_info info; | |
633 | ||
634 | node = dev ? dev_to_node(dev) : NUMA_NO_NODE; | |
635 | trigger = trigger == ACPI_EDGE_SENSITIVE ? 0 : 1; | |
636 | polarity = polarity == ACPI_ACTIVE_HIGH ? 0 : 1; | |
637 | ioapic_set_alloc_attr(&info, node, trigger, polarity); | |
638 | ||
5da2fd26 | 639 | mutex_lock(&acpi_ioapic_lock); |
46176f39 JL |
640 | irq = mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC, &info); |
641 | /* Don't set up the ACPI SCI because it's already set up */ | |
642 | if (irq >= 0 && enable_update_mptable && | |
643 | acpi_gbl_FADT.sci_interrupt != gsi) | |
644 | mp_config_acpi_gsi(dev, gsi, trigger, polarity); | |
5da2fd26 | 645 | mutex_unlock(&acpi_ioapic_lock); |
1da177e4 | 646 | #endif |
2f065aef | 647 | |
84245af7 | 648 | return irq; |
2f065aef JF |
649 | } |
650 | ||
6a38fa0e JL |
651 | static void acpi_unregister_gsi_ioapic(u32 gsi) |
652 | { | |
653 | #ifdef CONFIG_X86_IO_APIC | |
46176f39 JL |
654 | int irq; |
655 | ||
5da2fd26 | 656 | mutex_lock(&acpi_ioapic_lock); |
46176f39 JL |
657 | irq = mp_map_gsi_to_irq(gsi, 0, NULL); |
658 | if (irq > 0) | |
659 | mp_unmap_irq(irq); | |
5da2fd26 | 660 | mutex_unlock(&acpi_ioapic_lock); |
6a38fa0e | 661 | #endif |
2f065aef | 662 | } |
2f82c9dc | 663 | #endif |
2f065aef | 664 | |
90f6881e JF |
665 | int (*__acpi_register_gsi)(struct device *dev, u32 gsi, |
666 | int trigger, int polarity) = acpi_register_gsi_pic; | |
6a38fa0e | 667 | void (*__acpi_unregister_gsi)(u32 gsi) = NULL; |
2f065aef | 668 | |
d6a77ead KRW |
669 | #ifdef CONFIG_ACPI_SLEEP |
670 | int (*acpi_suspend_lowlevel)(void) = x86_acpi_suspend_lowlevel; | |
671 | #else | |
672 | int (*acpi_suspend_lowlevel)(void); | |
673 | #endif | |
674 | ||
2f065aef JF |
675 | /* |
676 | * success: return IRQ number (>=0) | |
677 | * failure: return < 0 | |
678 | */ | |
679 | int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity) | |
680 | { | |
84245af7 | 681 | return __acpi_register_gsi(dev, gsi, trigger, polarity); |
1da177e4 | 682 | } |
35e92b78 AS |
683 | EXPORT_SYMBOL_GPL(acpi_register_gsi); |
684 | ||
685 | void acpi_unregister_gsi(u32 gsi) | |
686 | { | |
6a38fa0e JL |
687 | if (__acpi_unregister_gsi) |
688 | __acpi_unregister_gsi(gsi); | |
35e92b78 AS |
689 | } |
690 | EXPORT_SYMBOL_GPL(acpi_unregister_gsi); | |
4be44fcd | 691 | |
9f50c6ea | 692 | #ifdef CONFIG_X86_LOCAL_APIC |
e819813f | 693 | static void __init acpi_set_irq_model_ioapic(void) |
2f065aef JF |
694 | { |
695 | acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; | |
696 | __acpi_register_gsi = acpi_register_gsi_ioapic; | |
6a38fa0e | 697 | __acpi_unregister_gsi = acpi_unregister_gsi_ioapic; |
2f065aef JF |
698 | acpi_ioapic = 1; |
699 | } | |
9f50c6ea | 700 | #endif |
2f065aef | 701 | |
1da177e4 LT |
702 | /* |
703 | * ACPI based hotplug support for CPU | |
704 | */ | |
705 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | |
d8191fa4 | 706 | #include <acpi/processor.h> |
009cbadb | 707 | |
148f9bb8 | 708 | static void acpi_map_cpu2node(acpi_handle handle, int cpu, int physid) |
0271f910 HL |
709 | { |
710 | #ifdef CONFIG_ACPI_NUMA | |
711 | int nid; | |
712 | ||
713 | nid = acpi_get_node(handle); | |
896dc506 JL |
714 | if (nid != -1) { |
715 | set_apicid_to_node(physid, nid); | |
716 | numa_set_node(cpu, nid); | |
717 | } | |
0271f910 HL |
718 | #endif |
719 | } | |
009cbadb | 720 | |
4daa832d | 721 | int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, int *pcpu) |
1da177e4 | 722 | { |
73fea175 | 723 | int cpu; |
ee943a82 | 724 | |
3e9e57fa | 725 | cpu = acpi_register_lapic(physid, U32_MAX, ACPI_MADT_ENABLED); |
7e1f85f9 JL |
726 | if (cpu < 0) { |
727 | pr_info(PREFIX "Unable to map lapic to logical cpu number\n"); | |
728 | return cpu; | |
73fea175 AR |
729 | } |
730 | ||
d8191fa4 | 731 | acpi_processor_set_pdc(handle); |
0271f910 | 732 | acpi_map_cpu2node(handle, cpu, physid); |
73fea175 AR |
733 | |
734 | *pcpu = cpu; | |
7e1f85f9 | 735 | return 0; |
1da177e4 | 736 | } |
d02dc27d | 737 | EXPORT_SYMBOL(acpi_map_cpu); |
1da177e4 | 738 | |
d02dc27d | 739 | int acpi_unmap_cpu(int cpu) |
1da177e4 | 740 | { |
c4c60524 WC |
741 | #ifdef CONFIG_ACPI_NUMA |
742 | set_apicid_to_node(per_cpu(x86_cpu_to_apicid, cpu), NUMA_NO_NODE); | |
743 | #endif | |
744 | ||
71fff5e6 | 745 | per_cpu(x86_cpu_to_apicid, cpu) = -1; |
9628937d | 746 | set_cpu_present(cpu, false); |
73fea175 AR |
747 | num_processors--; |
748 | ||
749 | return (0); | |
1da177e4 | 750 | } |
d02dc27d | 751 | EXPORT_SYMBOL(acpi_unmap_cpu); |
4be44fcd | 752 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ |
1da177e4 | 753 | |
4be44fcd | 754 | int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) |
b1bb248a | 755 | { |
7db298cb JL |
756 | int ret = -ENOSYS; |
757 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
758 | int ioapic_id; | |
759 | u64 addr; | |
760 | struct ioapic_domain_cfg cfg = { | |
761 | .type = IOAPIC_DOMAIN_DYNAMIC, | |
f7a0c786 | 762 | .ops = &mp_ioapic_irqdomain_ops, |
7db298cb JL |
763 | }; |
764 | ||
765 | ioapic_id = acpi_get_ioapic_id(handle, gsi_base, &addr); | |
766 | if (ioapic_id < 0) { | |
767 | unsigned long long uid; | |
768 | acpi_status status; | |
769 | ||
770 | status = acpi_evaluate_integer(handle, METHOD_NAME__UID, | |
771 | NULL, &uid); | |
772 | if (ACPI_FAILURE(status)) { | |
773 | acpi_handle_warn(handle, "failed to get IOAPIC ID.\n"); | |
774 | return -EINVAL; | |
775 | } | |
776 | ioapic_id = (int)uid; | |
777 | } | |
778 | ||
779 | mutex_lock(&acpi_ioapic_lock); | |
780 | ret = mp_register_ioapic(ioapic_id, phys_addr, gsi_base, &cfg); | |
781 | mutex_unlock(&acpi_ioapic_lock); | |
782 | #endif | |
783 | ||
784 | return ret; | |
b1bb248a KK |
785 | } |
786 | EXPORT_SYMBOL(acpi_register_ioapic); | |
787 | ||
4be44fcd | 788 | int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base) |
b1bb248a | 789 | { |
15516a3b JL |
790 | int ret = -ENOSYS; |
791 | ||
792 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
793 | mutex_lock(&acpi_ioapic_lock); | |
794 | ret = mp_unregister_ioapic(gsi_base); | |
795 | mutex_unlock(&acpi_ioapic_lock); | |
796 | #endif | |
4be44fcd | 797 | |
15516a3b JL |
798 | return ret; |
799 | } | |
b1bb248a KK |
800 | EXPORT_SYMBOL(acpi_unregister_ioapic); |
801 | ||
e89900c9 JL |
802 | /** |
803 | * acpi_ioapic_registered - Check whether IOAPIC assoicatied with @gsi_base | |
804 | * has been registered | |
805 | * @handle: ACPI handle of the IOAPIC deivce | |
806 | * @gsi_base: GSI base associated with the IOAPIC | |
807 | * | |
808 | * Assume caller holds some type of lock to serialize acpi_ioapic_registered() | |
809 | * with acpi_register_ioapic()/acpi_unregister_ioapic(). | |
810 | */ | |
811 | int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base) | |
812 | { | |
813 | int ret = 0; | |
814 | ||
815 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
816 | mutex_lock(&acpi_ioapic_lock); | |
817 | ret = mp_ioapic_registered(gsi_base); | |
818 | mutex_unlock(&acpi_ioapic_lock); | |
819 | #endif | |
820 | ||
821 | return ret; | |
822 | } | |
823 | ||
5f3b1a8b | 824 | static int __init acpi_parse_sbf(struct acpi_table_header *table) |
1da177e4 | 825 | { |
2fad9308 | 826 | struct acpi_table_boot *sb = (struct acpi_table_boot *)table; |
1da177e4 | 827 | |
5f3b1a8b | 828 | sbf_port = sb->cmos_index; /* Save CMOS port */ |
1da177e4 LT |
829 | |
830 | return 0; | |
831 | } | |
832 | ||
1da177e4 | 833 | #ifdef CONFIG_HPET_TIMER |
2d0c87c3 | 834 | #include <asm/hpet.h> |
1da177e4 | 835 | |
dd96dc32 | 836 | static struct resource *hpet_res __initdata; |
a1dfd851 | 837 | |
5f3b1a8b | 838 | static int __init acpi_parse_hpet(struct acpi_table_header *table) |
1da177e4 | 839 | { |
2fad9308 | 840 | struct acpi_table_hpet *hpet_tbl = (struct acpi_table_hpet *)table; |
1da177e4 | 841 | |
ad363f80 | 842 | if (hpet_tbl->address.space_id != ACPI_SPACE_MEM) { |
1da177e4 LT |
843 | printk(KERN_WARNING PREFIX "HPET timers must be located in " |
844 | "memory.\n"); | |
845 | return -1; | |
846 | } | |
f0f4c343 | 847 | |
2d0c87c3 | 848 | hpet_address = hpet_tbl->address.address; |
c8bc6f3c | 849 | hpet_blockid = hpet_tbl->sequence; |
f4df73c2 TG |
850 | |
851 | /* | |
852 | * Some broken BIOSes advertise HPET at 0x0. We really do not | |
853 | * want to allocate a resource there. | |
854 | */ | |
855 | if (!hpet_address) { | |
856 | printk(KERN_WARNING PREFIX | |
857 | "HPET id: %#x base: %#lx is invalid\n", | |
858 | hpet_tbl->id, hpet_address); | |
859 | return 0; | |
860 | } | |
861 | #ifdef CONFIG_X86_64 | |
862 | /* | |
863 | * Some even more broken BIOSes advertise HPET at | |
864 | * 0xfed0000000000000 instead of 0xfed00000. Fix it up and add | |
865 | * some noise: | |
866 | */ | |
867 | if (hpet_address == 0xfed0000000000000UL) { | |
868 | if (!hpet_force_user) { | |
869 | printk(KERN_WARNING PREFIX "HPET id: %#x " | |
870 | "base: 0xfed0000000000000 is bogus\n " | |
871 | "try hpet=force on the kernel command line to " | |
872 | "fix it up to 0xfed00000.\n", hpet_tbl->id); | |
873 | hpet_address = 0; | |
874 | return 0; | |
875 | } | |
876 | printk(KERN_WARNING PREFIX | |
877 | "HPET id: %#x base: 0xfed0000000000000 fixed up " | |
878 | "to 0xfed00000.\n", hpet_tbl->id); | |
879 | hpet_address >>= 32; | |
880 | } | |
881 | #endif | |
4be44fcd | 882 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", |
2d0c87c3 | 883 | hpet_tbl->id, hpet_address); |
1da177e4 | 884 | |
a1dfd851 AD |
885 | /* |
886 | * Allocate and initialize the HPET firmware resource for adding into | |
887 | * the resource tree during the lateinit timeframe. | |
888 | */ | |
889 | #define HPET_RESOURCE_NAME_SIZE 9 | |
890 | hpet_res = alloc_bootmem(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE); | |
891 | ||
a1dfd851 AD |
892 | hpet_res->name = (void *)&hpet_res[1]; |
893 | hpet_res->flags = IORESOURCE_MEM; | |
894 | snprintf((char *)hpet_res->name, HPET_RESOURCE_NAME_SIZE, "HPET %u", | |
895 | hpet_tbl->sequence); | |
896 | ||
897 | hpet_res->start = hpet_address; | |
898 | hpet_res->end = hpet_address + (1 * 1024) - 1; | |
899 | ||
1da177e4 LT |
900 | return 0; |
901 | } | |
a1dfd851 AD |
902 | |
903 | /* | |
904 | * hpet_insert_resource inserts the HPET resources used into the resource | |
905 | * tree. | |
906 | */ | |
907 | static __init int hpet_insert_resource(void) | |
908 | { | |
909 | if (!hpet_res) | |
910 | return 1; | |
911 | ||
912 | return insert_resource(&iomem_resource, hpet_res); | |
913 | } | |
914 | ||
915 | late_initcall(hpet_insert_resource); | |
916 | ||
1da177e4 LT |
917 | #else |
918 | #define acpi_parse_hpet NULL | |
919 | #endif | |
920 | ||
5f3b1a8b | 921 | static int __init acpi_parse_fadt(struct acpi_table_header *table) |
1da177e4 | 922 | { |
7a17b82c LR |
923 | if (!(acpi_gbl_FADT.boot_flags & ACPI_FADT_LEGACY_DEVICES)) { |
924 | pr_debug("ACPI: no legacy devices present\n"); | |
925 | x86_platform.legacy.devices.pnpbios = 0; | |
926 | } | |
927 | ||
088a8ef8 LR |
928 | if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_CMOS_RTC) { |
929 | pr_debug("ACPI: not registering RTC platform device\n"); | |
930 | x86_platform.legacy.rtc = 0; | |
931 | } | |
90660ec3 | 932 | |
1da177e4 LT |
933 | #ifdef CONFIG_X86_PM_TIMER |
934 | /* detect the location of the ACPI PM Timer */ | |
5f3b1a8b | 935 | if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) { |
1da177e4 | 936 | /* FADT rev. 2 */ |
5f3b1a8b | 937 | if (acpi_gbl_FADT.xpm_timer_block.space_id != |
4be44fcd | 938 | ACPI_ADR_SPACE_SYSTEM_IO) |
1da177e4 LT |
939 | return 0; |
940 | ||
5f3b1a8b | 941 | pmtmr_ioport = acpi_gbl_FADT.xpm_timer_block.address; |
e6e87b4b DSL |
942 | /* |
943 | * "X" fields are optional extensions to the original V1.0 | |
944 | * fields, so we must selectively expand V1.0 fields if the | |
945 | * corresponding X field is zero. | |
946 | */ | |
947 | if (!pmtmr_ioport) | |
5f3b1a8b | 948 | pmtmr_ioport = acpi_gbl_FADT.pm_timer_block; |
1da177e4 LT |
949 | } else { |
950 | /* FADT rev. 1 */ | |
5f3b1a8b | 951 | pmtmr_ioport = acpi_gbl_FADT.pm_timer_block; |
1da177e4 LT |
952 | } |
953 | if (pmtmr_ioport) | |
4be44fcd LB |
954 | printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n", |
955 | pmtmr_ioport); | |
1da177e4 LT |
956 | #endif |
957 | return 0; | |
958 | } | |
959 | ||
1da177e4 LT |
960 | #ifdef CONFIG_X86_LOCAL_APIC |
961 | /* | |
962 | * Parse LAPIC entries in MADT | |
963 | * returns 0 on success, < 0 on error | |
964 | */ | |
31d2092e | 965 | |
cbf9bd60 YL |
966 | static int __init early_acpi_parse_madt_lapic_addr_ovr(void) |
967 | { | |
968 | int count; | |
969 | ||
93984fbd | 970 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
cbf9bd60 YL |
971 | return -ENODEV; |
972 | ||
973 | /* | |
974 | * Note that the LAPIC address is obtained from the MADT (32-bit value) | |
6a6256f9 | 975 | * and (optionally) overridden by a LAPIC_ADDR_OVR entry (64-bit value). |
cbf9bd60 YL |
976 | */ |
977 | ||
e819813f JL |
978 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE, |
979 | acpi_parse_lapic_addr_ovr, 0); | |
cbf9bd60 YL |
980 | if (count < 0) { |
981 | printk(KERN_ERR PREFIX | |
982 | "Error parsing LAPIC address override entry\n"); | |
983 | return count; | |
984 | } | |
985 | ||
c0104d38 | 986 | register_lapic_address(acpi_lapic_addr); |
cbf9bd60 YL |
987 | |
988 | return count; | |
989 | } | |
990 | ||
4be44fcd | 991 | static int __init acpi_parse_madt_lapic_entries(void) |
1da177e4 LT |
992 | { |
993 | int count; | |
7237d3de | 994 | int x2count = 0; |
d81056b5 LA |
995 | int ret; |
996 | struct acpi_subtable_proc madt_proc[2]; | |
1da177e4 | 997 | |
93984fbd | 998 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
0fcd2709 AK |
999 | return -ENODEV; |
1000 | ||
5f3b1a8b | 1001 | /* |
1da177e4 | 1002 | * Note that the LAPIC address is obtained from the MADT (32-bit value) |
6a6256f9 | 1003 | * and (optionally) overridden by a LAPIC_ADDR_OVR entry (64-bit value). |
1da177e4 LT |
1004 | */ |
1005 | ||
e819813f JL |
1006 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE, |
1007 | acpi_parse_lapic_addr_ovr, 0); | |
1da177e4 | 1008 | if (count < 0) { |
4be44fcd LB |
1009 | printk(KERN_ERR PREFIX |
1010 | "Error parsing LAPIC address override entry\n"); | |
1da177e4 LT |
1011 | return count; |
1012 | } | |
1013 | ||
c0104d38 | 1014 | register_lapic_address(acpi_lapic_addr); |
1da177e4 | 1015 | |
ac049c1d | 1016 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC, |
cb2ded37 | 1017 | acpi_parse_sapic, MAX_LOCAL_APIC); |
ac049c1d | 1018 | |
7237d3de | 1019 | if (!count) { |
d81056b5 LA |
1020 | memset(madt_proc, 0, sizeof(madt_proc)); |
1021 | madt_proc[0].id = ACPI_MADT_TYPE_LOCAL_APIC; | |
1022 | madt_proc[0].handler = acpi_parse_lapic; | |
1023 | madt_proc[1].id = ACPI_MADT_TYPE_LOCAL_X2APIC; | |
1024 | madt_proc[1].handler = acpi_parse_x2apic; | |
1025 | ret = acpi_table_parse_entries_array(ACPI_SIG_MADT, | |
1026 | sizeof(struct acpi_table_madt), | |
1027 | madt_proc, ARRAY_SIZE(madt_proc), MAX_LOCAL_APIC); | |
1028 | if (ret < 0) { | |
1029 | printk(KERN_ERR PREFIX | |
1030 | "Error parsing LAPIC/X2APIC entries\n"); | |
1031 | return ret; | |
1032 | } | |
1033 | ||
1034 | x2count = madt_proc[0].count; | |
1035 | count = madt_proc[1].count; | |
7237d3de SS |
1036 | } |
1037 | if (!count && !x2count) { | |
1da177e4 LT |
1038 | printk(KERN_ERR PREFIX "No LAPIC entries present\n"); |
1039 | /* TBD: Cleanup to allow fallback to MPS */ | |
1040 | return -ENODEV; | |
7237d3de | 1041 | } else if (count < 0 || x2count < 0) { |
1da177e4 LT |
1042 | printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n"); |
1043 | /* TBD: Cleanup to allow fallback to MPS */ | |
1044 | return count; | |
1045 | } | |
1046 | ||
e819813f JL |
1047 | x2count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_X2APIC_NMI, |
1048 | acpi_parse_x2apic_nmi, 0); | |
1049 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, | |
1050 | acpi_parse_lapic_nmi, 0); | |
7237d3de | 1051 | if (count < 0 || x2count < 0) { |
1da177e4 LT |
1052 | printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); |
1053 | /* TBD: Cleanup to allow fallback to MPS */ | |
1054 | return count; | |
1055 | } | |
1056 | return 0; | |
1057 | } | |
4be44fcd | 1058 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 1059 | |
8466361a | 1060 | #ifdef CONFIG_X86_IO_APIC |
a491cc90 | 1061 | static void __init mp_config_acpi_legacy_irqs(void) |
11113f84 | 1062 | { |
6df8809b | 1063 | int i; |
c2c21745 | 1064 | struct mpc_intsrc mp_irq; |
11113f84 | 1065 | |
bb8187d3 | 1066 | #ifdef CONFIG_EISA |
11113f84 AS |
1067 | /* |
1068 | * Fabricate the legacy ISA bus (bus #31). | |
1069 | */ | |
1070 | mp_bus_id_to_type[MP_ISA_BUS] = MP_BUS_ISA; | |
1071 | #endif | |
1072 | set_bit(MP_ISA_BUS, mp_bus_not_pci); | |
cfc1b9a6 | 1073 | pr_debug("Bus #%d is ISA\n", MP_ISA_BUS); |
11113f84 | 1074 | |
11113f84 AS |
1075 | /* |
1076 | * Use the default configuration for the IRQs 0-15. Unless | |
1077 | * overridden by (MADT) interrupt source override entries. | |
1078 | */ | |
95d76acc | 1079 | for (i = 0; i < nr_legacy_irqs(); i++) { |
0fd52670 EB |
1080 | int ioapic, pin; |
1081 | unsigned int dstapic; | |
11113f84 | 1082 | int idx; |
0fd52670 EB |
1083 | u32 gsi; |
1084 | ||
1085 | /* Locate the gsi that irq i maps to. */ | |
1086 | if (acpi_isa_irq_to_gsi(i, &gsi)) | |
1087 | continue; | |
1088 | ||
1089 | /* | |
1090 | * Locate the IOAPIC that manages the ISA IRQ. | |
1091 | */ | |
1092 | ioapic = mp_find_ioapic(gsi); | |
1093 | if (ioapic < 0) | |
1094 | continue; | |
1095 | pin = mp_find_ioapic_pin(ioapic, gsi); | |
d5371430 | 1096 | dstapic = mpc_ioapic_id(ioapic); |
11113f84 AS |
1097 | |
1098 | for (idx = 0; idx < mp_irq_entries; idx++) { | |
c2c21745 | 1099 | struct mpc_intsrc *irq = mp_irqs + idx; |
11113f84 AS |
1100 | |
1101 | /* Do we already have a mapping for this ISA IRQ? */ | |
c2c21745 | 1102 | if (irq->srcbus == MP_ISA_BUS && irq->srcbusirq == i) |
11113f84 AS |
1103 | break; |
1104 | ||
1105 | /* Do we already have a mapping for this IOAPIC pin */ | |
0fd52670 | 1106 | if (irq->dstapic == dstapic && irq->dstirq == pin) |
11113f84 AS |
1107 | break; |
1108 | } | |
1109 | ||
1110 | if (idx != mp_irq_entries) { | |
1111 | printk(KERN_DEBUG "ACPI: IRQ%d used by override.\n", i); | |
1112 | continue; /* IRQ already used */ | |
1113 | } | |
1114 | ||
c2c21745 JSR |
1115 | mp_irq.type = MP_INTSRC; |
1116 | mp_irq.irqflag = 0; /* Conforming */ | |
1117 | mp_irq.srcbus = MP_ISA_BUS; | |
1118 | mp_irq.dstapic = dstapic; | |
1119 | mp_irq.irqtype = mp_INT; | |
1120 | mp_irq.srcbusirq = i; /* Identity mapped */ | |
0fd52670 | 1121 | mp_irq.dstirq = pin; |
11113f84 | 1122 | |
2d8009ba | 1123 | mp_save_irq(&mp_irq); |
11113f84 AS |
1124 | } |
1125 | } | |
1126 | ||
1da177e4 LT |
1127 | /* |
1128 | * Parse IOAPIC related entries in MADT | |
1129 | * returns 0 on success, < 0 on error | |
1130 | */ | |
4be44fcd | 1131 | static int __init acpi_parse_madt_ioapic_entries(void) |
1da177e4 LT |
1132 | { |
1133 | int count; | |
1134 | ||
1135 | /* | |
1136 | * ACPI interpreter is required to complete interrupt setup, | |
1137 | * so if it is off, don't enumerate the io-apics with ACPI. | |
1138 | * If MPS is present, it will handle them, | |
1139 | * otherwise the system will stay in PIC mode | |
1140 | */ | |
6b2b171a | 1141 | if (acpi_disabled || acpi_noirq) |
1da177e4 | 1142 | return -ENODEV; |
1da177e4 | 1143 | |
93984fbd | 1144 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
d3b6a349 AK |
1145 | return -ENODEV; |
1146 | ||
1da177e4 | 1147 | /* |
4be44fcd | 1148 | * if "noapic" boot option, don't look for IO-APICs |
1da177e4 LT |
1149 | */ |
1150 | if (skip_ioapic_setup) { | |
1151 | printk(KERN_INFO PREFIX "Skipping IOAPIC probe " | |
4be44fcd | 1152 | "due to 'noapic' option.\n"); |
1da177e4 LT |
1153 | return -ENODEV; |
1154 | } | |
1155 | ||
e819813f JL |
1156 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_IO_APIC, acpi_parse_ioapic, |
1157 | MAX_IO_APICS); | |
1da177e4 LT |
1158 | if (!count) { |
1159 | printk(KERN_ERR PREFIX "No IOAPIC entries present\n"); | |
1160 | return -ENODEV; | |
4be44fcd | 1161 | } else if (count < 0) { |
1da177e4 LT |
1162 | printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n"); |
1163 | return count; | |
1164 | } | |
1165 | ||
e819813f JL |
1166 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_INTERRUPT_OVERRIDE, |
1167 | acpi_parse_int_src_ovr, nr_irqs); | |
1da177e4 | 1168 | if (count < 0) { |
4be44fcd LB |
1169 | printk(KERN_ERR PREFIX |
1170 | "Error parsing interrupt source overrides entry\n"); | |
1da177e4 LT |
1171 | /* TBD: Cleanup to allow fallback to MPS */ |
1172 | return count; | |
1173 | } | |
1174 | ||
1175 | /* | |
1176 | * If BIOS did not supply an INT_SRC_OVR for the SCI | |
1177 | * pretend we got one so we can set the SCI flags. | |
1178 | */ | |
1179 | if (!acpi_sci_override_gsi) | |
9d2062b8 EB |
1180 | acpi_sci_ioapic_setup(acpi_gbl_FADT.sci_interrupt, 0, 0, |
1181 | acpi_gbl_FADT.sci_interrupt); | |
1da177e4 | 1182 | |
af901ca1 | 1183 | /* Fill in identity legacy mappings where no override */ |
1da177e4 LT |
1184 | mp_config_acpi_legacy_irqs(); |
1185 | ||
e819813f JL |
1186 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_NMI_SOURCE, |
1187 | acpi_parse_nmi_src, nr_irqs); | |
1da177e4 LT |
1188 | if (count < 0) { |
1189 | printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n"); | |
1190 | /* TBD: Cleanup to allow fallback to MPS */ | |
1191 | return count; | |
1192 | } | |
1193 | ||
1194 | return 0; | |
1195 | } | |
1196 | #else | |
1197 | static inline int acpi_parse_madt_ioapic_entries(void) | |
1198 | { | |
1199 | return -1; | |
1200 | } | |
8466361a | 1201 | #endif /* !CONFIG_X86_IO_APIC */ |
1da177e4 | 1202 | |
cbf9bd60 YL |
1203 | static void __init early_acpi_process_madt(void) |
1204 | { | |
1205 | #ifdef CONFIG_X86_LOCAL_APIC | |
1206 | int error; | |
1207 | ||
1208 | if (!acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) { | |
1209 | ||
1210 | /* | |
1211 | * Parse MADT LAPIC entries | |
1212 | */ | |
1213 | error = early_acpi_parse_madt_lapic_addr_ovr(); | |
1214 | if (!error) { | |
1215 | acpi_lapic = 1; | |
1216 | smp_found_config = 1; | |
1217 | } | |
1218 | if (error == -EINVAL) { | |
1219 | /* | |
1220 | * Dell Precision Workstation 410, 610 come here. | |
1221 | */ | |
1222 | printk(KERN_ERR PREFIX | |
1223 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1224 | disable_acpi(); | |
1225 | } | |
1226 | } | |
1227 | #endif | |
1228 | } | |
1229 | ||
4be44fcd | 1230 | static void __init acpi_process_madt(void) |
1da177e4 LT |
1231 | { |
1232 | #ifdef CONFIG_X86_LOCAL_APIC | |
7f8f97c3 | 1233 | int error; |
1da177e4 | 1234 | |
7f8f97c3 | 1235 | if (!acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) { |
1da177e4 LT |
1236 | |
1237 | /* | |
1238 | * Parse MADT LAPIC entries | |
1239 | */ | |
1240 | error = acpi_parse_madt_lapic_entries(); | |
1241 | if (!error) { | |
1242 | acpi_lapic = 1; | |
1243 | ||
1244 | /* | |
1245 | * Parse MADT IO-APIC entries | |
1246 | */ | |
5da2fd26 | 1247 | mutex_lock(&acpi_ioapic_lock); |
1da177e4 | 1248 | error = acpi_parse_madt_ioapic_entries(); |
5da2fd26 | 1249 | mutex_unlock(&acpi_ioapic_lock); |
1da177e4 | 1250 | if (!error) { |
2f065aef | 1251 | acpi_set_irq_model_ioapic(); |
1da177e4 LT |
1252 | |
1253 | smp_found_config = 1; | |
1da177e4 LT |
1254 | } |
1255 | } | |
1256 | if (error == -EINVAL) { | |
1257 | /* | |
1258 | * Dell Precision Workstation 410, 610 come here. | |
1259 | */ | |
4be44fcd LB |
1260 | printk(KERN_ERR PREFIX |
1261 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1da177e4 LT |
1262 | disable_acpi(); |
1263 | } | |
7b37b5fd LB |
1264 | } else { |
1265 | /* | |
1266 | * ACPI found no MADT, and so ACPI wants UP PIC mode. | |
1267 | * In the event an MPS table was found, forget it. | |
1268 | * Boot with "acpi=off" to use MPS on such a system. | |
1269 | */ | |
1270 | if (smp_found_config) { | |
1271 | printk(KERN_WARNING PREFIX | |
1272 | "No APIC-table, disabling MPS\n"); | |
1273 | smp_found_config = 0; | |
1274 | } | |
1da177e4 | 1275 | } |
69b88afa YL |
1276 | |
1277 | /* | |
1278 | * ACPI supports both logical (e.g. Hyper-Threading) and physical | |
1279 | * processors, where MPS only supports physical. | |
1280 | */ | |
1281 | if (acpi_lapic && acpi_ioapic) | |
1282 | printk(KERN_INFO "Using ACPI (MADT) for SMP configuration " | |
1283 | "information\n"); | |
1284 | else if (acpi_lapic) | |
1285 | printk(KERN_INFO "Using ACPI for processor (LAPIC) " | |
1286 | "configuration information\n"); | |
1da177e4 LT |
1287 | #endif |
1288 | return; | |
1289 | } | |
1290 | ||
1855256c | 1291 | static int __init disable_acpi_irq(const struct dmi_system_id *d) |
aea00143 AP |
1292 | { |
1293 | if (!acpi_force) { | |
1294 | printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n", | |
1295 | d->ident); | |
1296 | acpi_noirq_set(); | |
1297 | } | |
1298 | return 0; | |
1299 | } | |
1300 | ||
1855256c | 1301 | static int __init disable_acpi_pci(const struct dmi_system_id *d) |
aea00143 AP |
1302 | { |
1303 | if (!acpi_force) { | |
1304 | printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n", | |
1305 | d->ident); | |
1306 | acpi_disable_pci(); | |
1307 | } | |
1308 | return 0; | |
1309 | } | |
aea00143 | 1310 | |
1855256c | 1311 | static int __init dmi_disable_acpi(const struct dmi_system_id *d) |
aea00143 AP |
1312 | { |
1313 | if (!acpi_force) { | |
4be44fcd | 1314 | printk(KERN_NOTICE "%s detected: acpi off\n", d->ident); |
aea00143 AP |
1315 | disable_acpi(); |
1316 | } else { | |
1317 | printk(KERN_NOTICE | |
1318 | "Warning: DMI blacklist says broken, but acpi forced\n"); | |
1319 | } | |
1320 | return 0; | |
1321 | } | |
1322 | ||
e2079c43 | 1323 | /* |
ae10ccdc | 1324 | * Force ignoring BIOS IRQ0 override |
e2079c43 RW |
1325 | */ |
1326 | static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d) | |
1327 | { | |
8d89adf4 | 1328 | if (!acpi_skip_timer_override) { |
ae10ccdc | 1329 | pr_notice("%s detected: Ignoring BIOS IRQ0 override\n", |
8d89adf4 IM |
1330 | d->ident); |
1331 | acpi_skip_timer_override = 1; | |
1332 | } | |
e2079c43 RW |
1333 | return 0; |
1334 | } | |
1335 | ||
7486341a LA |
1336 | /* |
1337 | * ACPI offers an alternative platform interface model that removes | |
1338 | * ACPI hardware requirements for platforms that do not implement | |
1339 | * the PC Architecture. | |
1340 | * | |
1341 | * We initialize the Hardware-reduced ACPI model here: | |
1342 | */ | |
1343 | static void __init acpi_reduced_hw_init(void) | |
1344 | { | |
1345 | if (acpi_gbl_reduced_hardware) { | |
1346 | /* | |
1347 | * Override x86_init functions and bypass legacy pic | |
1348 | * in Hardware-reduced ACPI mode | |
1349 | */ | |
1350 | x86_init.timers.timer_init = x86_init_noop; | |
1351 | x86_init.irqs.pre_vector_init = x86_init_noop; | |
1352 | legacy_pic = &null_legacy_pic; | |
1353 | } | |
1354 | } | |
1355 | ||
aea00143 AP |
1356 | /* |
1357 | * If your system is blacklisted here, but you find that acpi=force | |
5b4c0b6f | 1358 | * works for you, please contact linux-acpi@vger.kernel.org |
aea00143 AP |
1359 | */ |
1360 | static struct dmi_system_id __initdata acpi_dmi_table[] = { | |
1361 | /* | |
1362 | * Boxes that need ACPI disabled | |
1363 | */ | |
1364 | { | |
4be44fcd LB |
1365 | .callback = dmi_disable_acpi, |
1366 | .ident = "IBM Thinkpad", | |
1367 | .matches = { | |
1368 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1369 | DMI_MATCH(DMI_BOARD_NAME, "2629H1G"), | |
1370 | }, | |
1371 | }, | |
aea00143 | 1372 | |
aea00143 AP |
1373 | /* |
1374 | * Boxes that need ACPI PCI IRQ routing disabled | |
1375 | */ | |
1376 | { | |
4be44fcd LB |
1377 | .callback = disable_acpi_irq, |
1378 | .ident = "ASUS A7V", | |
1379 | .matches = { | |
1380 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"), | |
1381 | DMI_MATCH(DMI_BOARD_NAME, "<A7V>"), | |
1382 | /* newer BIOS, Revision 1011, does work */ | |
1383 | DMI_MATCH(DMI_BIOS_VERSION, | |
1384 | "ASUS A7V ACPI BIOS Revision 1007"), | |
1385 | }, | |
1386 | }, | |
74586fca LB |
1387 | { |
1388 | /* | |
1389 | * Latest BIOS for IBM 600E (1.16) has bad pcinum | |
1390 | * for LPC bridge, which is needed for the PCI | |
1391 | * interrupt links to work. DSDT fix is in bug 5966. | |
1392 | * 2645, 2646 model numbers are shared with 600/600E/600X | |
1393 | */ | |
1394 | .callback = disable_acpi_irq, | |
1395 | .ident = "IBM Thinkpad 600 Series 2645", | |
1396 | .matches = { | |
1397 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1398 | DMI_MATCH(DMI_BOARD_NAME, "2645"), | |
1399 | }, | |
1400 | }, | |
1401 | { | |
1402 | .callback = disable_acpi_irq, | |
1403 | .ident = "IBM Thinkpad 600 Series 2646", | |
1404 | .matches = { | |
1405 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1406 | DMI_MATCH(DMI_BOARD_NAME, "2646"), | |
1407 | }, | |
1408 | }, | |
aea00143 AP |
1409 | /* |
1410 | * Boxes that need ACPI PCI IRQ routing and PCI scan disabled | |
1411 | */ | |
4be44fcd LB |
1412 | { /* _BBN 0 bug */ |
1413 | .callback = disable_acpi_pci, | |
1414 | .ident = "ASUS PR-DLS", | |
1415 | .matches = { | |
1416 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1417 | DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"), | |
1418 | DMI_MATCH(DMI_BIOS_VERSION, | |
1419 | "ASUS PR-DLS ACPI BIOS Revision 1010"), | |
1420 | DMI_MATCH(DMI_BIOS_DATE, "03/21/2003") | |
1421 | }, | |
1422 | }, | |
aea00143 | 1423 | { |
4be44fcd LB |
1424 | .callback = disable_acpi_pci, |
1425 | .ident = "Acer TravelMate 36x Laptop", | |
1426 | .matches = { | |
1427 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
1428 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), | |
1429 | }, | |
1430 | }, | |
35af2821 AH |
1431 | {} |
1432 | }; | |
1433 | ||
1434 | /* second table for DMI checks that should run after early-quirks */ | |
1435 | static struct dmi_system_id __initdata acpi_dmi_table_late[] = { | |
e2079c43 RW |
1436 | /* |
1437 | * HP laptops which use a DSDT reporting as HP/SB400/10000, | |
1438 | * which includes some code which overrides all temperature | |
1439 | * trip points to 16C if the INTIN2 input of the I/O APIC | |
1440 | * is enabled. This input is incorrectly designated the | |
1441 | * ISA IRQ 0 via an interrupt source override even though | |
1442 | * it is wired to the output of the master 8259A and INTIN0 | |
ae10ccdc | 1443 | * is not connected at all. Force ignoring BIOS IRQ0 |
e2079c43 RW |
1444 | * override in that cases. |
1445 | */ | |
e84956f9 RW |
1446 | { |
1447 | .callback = dmi_ignore_irq0_timer_override, | |
1448 | .ident = "HP nx6115 laptop", | |
1449 | .matches = { | |
1450 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1451 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6115"), | |
1452 | }, | |
1453 | }, | |
e2079c43 RW |
1454 | { |
1455 | .callback = dmi_ignore_irq0_timer_override, | |
1456 | .ident = "HP NX6125 laptop", | |
1457 | .matches = { | |
1458 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1459 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6125"), | |
1460 | }, | |
1461 | }, | |
1462 | { | |
1463 | .callback = dmi_ignore_irq0_timer_override, | |
1464 | .ident = "HP NX6325 laptop", | |
1465 | .matches = { | |
1466 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1467 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6325"), | |
1468 | }, | |
1469 | }, | |
e84956f9 RW |
1470 | { |
1471 | .callback = dmi_ignore_irq0_timer_override, | |
1472 | .ident = "HP 6715b laptop", | |
1473 | .matches = { | |
1474 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1475 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"), | |
1476 | }, | |
1477 | }, | |
f6b54f08 FT |
1478 | { |
1479 | .callback = dmi_ignore_irq0_timer_override, | |
1480 | .ident = "FUJITSU SIEMENS", | |
1481 | .matches = { | |
1482 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), | |
1483 | DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"), | |
1484 | }, | |
1485 | }, | |
4be44fcd | 1486 | {} |
aea00143 AP |
1487 | }; |
1488 | ||
1da177e4 LT |
1489 | /* |
1490 | * acpi_boot_table_init() and acpi_boot_init() | |
1491 | * called from setup_arch(), always. | |
1492 | * 1. checksums all tables | |
1493 | * 2. enumerates lapics | |
1494 | * 3. enumerates io-apics | |
1495 | * | |
1496 | * acpi_table_init() is separate to allow reading SRAT without | |
1497 | * other side effects. | |
1498 | * | |
1499 | * side effects of acpi_boot_init: | |
1500 | * acpi_lapic = 1 if LAPIC found | |
1501 | * acpi_ioapic = 1 if IOAPIC found | |
1502 | * if (acpi_lapic && acpi_ioapic) smp_found_config = 1; | |
1503 | * if acpi_blacklisted() acpi_disabled = 1; | |
1504 | * acpi_irq_model=... | |
1505 | * ... | |
1da177e4 LT |
1506 | */ |
1507 | ||
8558e394 | 1508 | void __init acpi_boot_table_init(void) |
1da177e4 | 1509 | { |
aea00143 | 1510 | dmi_check_system(acpi_dmi_table); |
aea00143 | 1511 | |
1da177e4 LT |
1512 | /* |
1513 | * If acpi_disabled, bail out | |
1da177e4 | 1514 | */ |
68ca4069 | 1515 | if (acpi_disabled) |
8558e394 | 1516 | return; |
1da177e4 | 1517 | |
5f3b1a8b | 1518 | /* |
1da177e4 LT |
1519 | * Initialize the ACPI boot-time table parser. |
1520 | */ | |
8558e394 | 1521 | if (acpi_table_init()) { |
1da177e4 | 1522 | disable_acpi(); |
8558e394 | 1523 | return; |
1da177e4 | 1524 | } |
1da177e4 | 1525 | |
5f3b1a8b | 1526 | acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf); |
1da177e4 LT |
1527 | |
1528 | /* | |
1529 | * blacklist may disable ACPI entirely | |
1530 | */ | |
8558e394 | 1531 | if (acpi_blacklisted()) { |
1da177e4 LT |
1532 | if (acpi_force) { |
1533 | printk(KERN_WARNING PREFIX "acpi=force override\n"); | |
1534 | } else { | |
1535 | printk(KERN_WARNING PREFIX "Disabling ACPI support\n"); | |
1536 | disable_acpi(); | |
8558e394 | 1537 | return; |
1da177e4 LT |
1538 | } |
1539 | } | |
cbf9bd60 YL |
1540 | } |
1541 | ||
1542 | int __init early_acpi_boot_init(void) | |
1543 | { | |
1544 | /* | |
1545 | * If acpi_disabled, bail out | |
cbf9bd60 | 1546 | */ |
68ca4069 | 1547 | if (acpi_disabled) |
cbf9bd60 YL |
1548 | return 1; |
1549 | ||
1550 | /* | |
1551 | * Process the Multiple APIC Description Table (MADT), if present | |
1552 | */ | |
1553 | early_acpi_process_madt(); | |
1da177e4 | 1554 | |
7486341a LA |
1555 | /* |
1556 | * Hardware-reduced ACPI mode initialization: | |
1557 | */ | |
1558 | acpi_reduced_hw_init(); | |
1559 | ||
1da177e4 LT |
1560 | return 0; |
1561 | } | |
1562 | ||
1da177e4 LT |
1563 | int __init acpi_boot_init(void) |
1564 | { | |
35af2821 AH |
1565 | /* those are executed after early-quirks are executed */ |
1566 | dmi_check_system(acpi_dmi_table_late); | |
1567 | ||
1da177e4 LT |
1568 | /* |
1569 | * If acpi_disabled, bail out | |
1da177e4 | 1570 | */ |
68ca4069 | 1571 | if (acpi_disabled) |
4be44fcd | 1572 | return 1; |
1da177e4 | 1573 | |
5f3b1a8b | 1574 | acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf); |
1da177e4 LT |
1575 | |
1576 | /* | |
1577 | * set sci_int and PM timer address | |
1578 | */ | |
ceb6c468 | 1579 | acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt); |
1da177e4 LT |
1580 | |
1581 | /* | |
1582 | * Process the Multiple APIC Description Table (MADT), if present | |
1583 | */ | |
1584 | acpi_process_madt(); | |
1585 | ||
5f3b1a8b | 1586 | acpi_table_parse(ACPI_SIG_HPET, acpi_parse_hpet); |
1da177e4 | 1587 | |
b72d0db9 TG |
1588 | if (!acpi_noirq) |
1589 | x86_init.pci.init = pci_acpi_init; | |
1590 | ||
1da177e4 LT |
1591 | return 0; |
1592 | } | |
1a3f239d RR |
1593 | |
1594 | static int __init parse_acpi(char *arg) | |
1595 | { | |
1596 | if (!arg) | |
1597 | return -EINVAL; | |
1598 | ||
1599 | /* "acpi=off" disables both ACPI table parsing and interpreter */ | |
1600 | if (strcmp(arg, "off") == 0) { | |
1601 | disable_acpi(); | |
1602 | } | |
1603 | /* acpi=force to over-ride black-list */ | |
1604 | else if (strcmp(arg, "force") == 0) { | |
1605 | acpi_force = 1; | |
1a3f239d RR |
1606 | acpi_disabled = 0; |
1607 | } | |
1608 | /* acpi=strict disables out-of-spec workarounds */ | |
1609 | else if (strcmp(arg, "strict") == 0) { | |
1610 | acpi_strict = 1; | |
1611 | } | |
237889bf ZY |
1612 | /* acpi=rsdt use RSDT instead of XSDT */ |
1613 | else if (strcmp(arg, "rsdt") == 0) { | |
fab46105 | 1614 | acpi_gbl_do_not_use_xsdt = TRUE; |
237889bf | 1615 | } |
1a3f239d RR |
1616 | /* "acpi=noirq" disables ACPI interrupt routing */ |
1617 | else if (strcmp(arg, "noirq") == 0) { | |
1618 | acpi_noirq_set(); | |
aa2110cb LM |
1619 | } |
1620 | /* "acpi=copy_dsdt" copys DSDT */ | |
1621 | else if (strcmp(arg, "copy_dsdt") == 0) { | |
1622 | acpi_gbl_copy_dsdt_locally = 1; | |
9ad95879 NR |
1623 | } |
1624 | /* "acpi=nocmcff" disables FF mode for corrected errors */ | |
1625 | else if (strcmp(arg, "nocmcff") == 0) { | |
1626 | acpi_disable_cmcff = 1; | |
1a3f239d RR |
1627 | } else { |
1628 | /* Core will printk when we return error. */ | |
1629 | return -EINVAL; | |
1630 | } | |
1631 | return 0; | |
1632 | } | |
1633 | early_param("acpi", parse_acpi); | |
1634 | ||
1635 | /* FIXME: Using pci= for an ACPI parameter is a travesty. */ | |
1636 | static int __init parse_pci(char *arg) | |
1637 | { | |
1638 | if (arg && strcmp(arg, "noacpi") == 0) | |
1639 | acpi_disable_pci(); | |
1640 | return 0; | |
1641 | } | |
1642 | early_param("pci", parse_pci); | |
1643 | ||
3c999f14 YL |
1644 | int __init acpi_mps_check(void) |
1645 | { | |
1646 | #if defined(CONFIG_X86_LOCAL_APIC) && !defined(CONFIG_X86_MPPARSE) | |
1647 | /* mptable code is not built-in*/ | |
1648 | if (acpi_disabled || acpi_noirq) { | |
1649 | printk(KERN_WARNING "MPS support code is not built-in.\n" | |
1650 | "Using acpi=off or acpi=noirq or pci=noacpi " | |
1651 | "may have problem\n"); | |
1652 | return 1; | |
1653 | } | |
1654 | #endif | |
1655 | return 0; | |
1656 | } | |
1657 | ||
1a3f239d RR |
1658 | #ifdef CONFIG_X86_IO_APIC |
1659 | static int __init parse_acpi_skip_timer_override(char *arg) | |
1660 | { | |
1661 | acpi_skip_timer_override = 1; | |
1662 | return 0; | |
1663 | } | |
1664 | early_param("acpi_skip_timer_override", parse_acpi_skip_timer_override); | |
fa18f477 AK |
1665 | |
1666 | static int __init parse_acpi_use_timer_override(char *arg) | |
1667 | { | |
1668 | acpi_use_timer_override = 1; | |
1669 | return 0; | |
1670 | } | |
1671 | early_param("acpi_use_timer_override", parse_acpi_use_timer_override); | |
1a3f239d RR |
1672 | #endif /* CONFIG_X86_IO_APIC */ |
1673 | ||
1674 | static int __init setup_acpi_sci(char *s) | |
1675 | { | |
1676 | if (!s) | |
1677 | return -EINVAL; | |
1678 | if (!strcmp(s, "edge")) | |
5f3b1a8b AS |
1679 | acpi_sci_flags = ACPI_MADT_TRIGGER_EDGE | |
1680 | (acpi_sci_flags & ~ACPI_MADT_TRIGGER_MASK); | |
1a3f239d | 1681 | else if (!strcmp(s, "level")) |
5f3b1a8b AS |
1682 | acpi_sci_flags = ACPI_MADT_TRIGGER_LEVEL | |
1683 | (acpi_sci_flags & ~ACPI_MADT_TRIGGER_MASK); | |
1a3f239d | 1684 | else if (!strcmp(s, "high")) |
5f3b1a8b AS |
1685 | acpi_sci_flags = ACPI_MADT_POLARITY_ACTIVE_HIGH | |
1686 | (acpi_sci_flags & ~ACPI_MADT_POLARITY_MASK); | |
1a3f239d | 1687 | else if (!strcmp(s, "low")) |
5f3b1a8b AS |
1688 | acpi_sci_flags = ACPI_MADT_POLARITY_ACTIVE_LOW | |
1689 | (acpi_sci_flags & ~ACPI_MADT_POLARITY_MASK); | |
1a3f239d RR |
1690 | else |
1691 | return -EINVAL; | |
1692 | return 0; | |
1693 | } | |
1694 | early_param("acpi_sci", setup_acpi_sci); | |
d0a9081b AM |
1695 | |
1696 | int __acpi_acquire_global_lock(unsigned int *lock) | |
1697 | { | |
1698 | unsigned int old, new, val; | |
1699 | do { | |
1700 | old = *lock; | |
1701 | new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1)); | |
1702 | val = cmpxchg(lock, old, new); | |
1703 | } while (unlikely (val != old)); | |
1704 | return (new < 3) ? -1 : 0; | |
1705 | } | |
1706 | ||
1707 | int __acpi_release_global_lock(unsigned int *lock) | |
1708 | { | |
1709 | unsigned int old, new, val; | |
1710 | do { | |
1711 | old = *lock; | |
1712 | new = old & ~0x3; | |
1713 | val = cmpxchg(lock, old, new); | |
1714 | } while (unlikely (val != old)); | |
1715 | return old & 0x1; | |
1716 | } | |
8e30524d TR |
1717 | |
1718 | void __init arch_reserve_mem_area(acpi_physical_address addr, size_t size) | |
1719 | { | |
1720 | e820_add_region(addr, size, E820_ACPI); | |
1721 | update_e820(); | |
1722 | } |