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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * boot.c - Architecture-Specific Low-Level ACPI Boot Support | |
4 | * | |
5 | * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> | |
6 | * Copyright (C) 2001 Jun Nakajima <jun.nakajima@intel.com> | |
1da177e4 LT |
7 | */ |
8 | ||
9 | #include <linux/init.h> | |
1da177e4 | 10 | #include <linux/acpi.h> |
d66bea57 | 11 | #include <linux/acpi_pmtmr.h> |
1da177e4 | 12 | #include <linux/efi.h> |
73fea175 | 13 | #include <linux/cpumask.h> |
186f4360 | 14 | #include <linux/export.h> |
aea00143 | 15 | #include <linux/dmi.h> |
b33fa1f3 | 16 | #include <linux/irq.h> |
5a0e3ad6 | 17 | #include <linux/slab.h> |
57c8a661 | 18 | #include <linux/memblock.h> |
f0f4c343 | 19 | #include <linux/ioport.h> |
a31f8205 | 20 | #include <linux/pci.h> |
7b0a9114 | 21 | #include <linux/efi-bgrt.h> |
0231d000 | 22 | #include <linux/serial_core.h> |
1da177e4 | 23 | |
5520b7e7 | 24 | #include <asm/e820/api.h> |
f7a0c786 | 25 | #include <asm/irqdomain.h> |
b72d0db9 | 26 | #include <asm/pci_x86.h> |
1da177e4 LT |
27 | #include <asm/pgtable.h> |
28 | #include <asm/io_apic.h> | |
29 | #include <asm/apic.h> | |
30 | #include <asm/io.h> | |
1da177e4 | 31 | #include <asm/mpspec.h> |
dfac2189 | 32 | #include <asm/smp.h> |
95d76acc | 33 | #include <asm/i8259.h> |
e7b66d16 | 34 | #include <asm/setup.h> |
1da177e4 | 35 | |
d6a77ead | 36 | #include "sleep.h" /* To include x86_acpi_suspend_lowlevel */ |
e8924acb | 37 | static int __initdata acpi_force = 0; |
c636f753 | 38 | int acpi_disabled; |
df3bb57d AK |
39 | EXPORT_SYMBOL(acpi_disabled); |
40 | ||
1da177e4 | 41 | #ifdef CONFIG_X86_64 |
1dcdd3d1 | 42 | # include <asm/proto.h> |
4be44fcd | 43 | #endif /* X86 */ |
1da177e4 | 44 | |
1da177e4 LT |
45 | #define PREFIX "ACPI: " |
46 | ||
90d53909 | 47 | int acpi_noirq; /* skip ACPI IRQ initialization */ |
1ffb8d03 | 48 | int acpi_nobgrt; /* skip ACPI BGRT */ |
6e4be1ff YL |
49 | int acpi_pci_disabled; /* skip ACPI PCI scan and IRQ initialization */ |
50 | EXPORT_SYMBOL(acpi_pci_disabled); | |
1da177e4 LT |
51 | |
52 | int acpi_lapic; | |
53 | int acpi_ioapic; | |
54 | int acpi_strict; | |
9ad95879 | 55 | int acpi_disable_cmcff; |
1da177e4 | 56 | |
4565c4f6 | 57 | /* ACPI SCI override configuration */ |
5f3b1a8b | 58 | u8 acpi_sci_flags __initdata; |
4565c4f6 | 59 | u32 acpi_sci_override_gsi __initdata = INVALID_ACPI_IRQ; |
1da177e4 | 60 | int acpi_skip_timer_override __initdata; |
fa18f477 | 61 | int acpi_use_timer_override __initdata; |
7f74f8f2 | 62 | int acpi_fix_pin2_polarity __initdata; |
1da177e4 LT |
63 | |
64 | #ifdef CONFIG_X86_LOCAL_APIC | |
65 | static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; | |
66 | #endif | |
67 | ||
d2d9c4a3 | 68 | #ifdef CONFIG_X86_IO_APIC |
5da2fd26 JL |
69 | /* |
70 | * Locks related to IOAPIC hotplug | |
71 | * Hotplug side: | |
72 | * ->device_hotplug_lock | |
73 | * ->acpi_ioapic_lock | |
74 | * ->ioapic_lock | |
75 | * Interrupt mapping side: | |
76 | * ->acpi_ioapic_lock | |
77 | * ->ioapic_mutex | |
78 | * ->ioapic_lock | |
79 | */ | |
80 | static DEFINE_MUTEX(acpi_ioapic_lock); | |
d2d9c4a3 | 81 | #endif |
5da2fd26 | 82 | |
1da177e4 LT |
83 | /* -------------------------------------------------------------------------- |
84 | Boot-time Configuration | |
85 | -------------------------------------------------------------------------- */ | |
86 | ||
87 | /* | |
88 | * The default interrupt routing model is PIC (8259). This gets | |
27b46d76 | 89 | * overridden if IOAPICs are enumerated (below). |
1da177e4 | 90 | */ |
4be44fcd | 91 | enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC; |
1da177e4 | 92 | |
1da177e4 | 93 | |
988856ee EB |
94 | /* |
95 | * ISA irqs by default are the first 16 gsis but can be | |
96 | * any gsi as specified by an interrupt source override. | |
97 | */ | |
98 | static u32 isa_irq_to_gsi[NR_IRQS_LEGACY] __read_mostly = { | |
99 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 | |
100 | }; | |
101 | ||
1da177e4 | 102 | /* |
f7750a79 | 103 | * This is just a simple wrapper around early_memremap(), |
45f1330a | 104 | * with sanity checks for phys == 0 and size == 0. |
1da177e4 | 105 | */ |
6c9a58e8 | 106 | void __init __iomem *__acpi_map_table(unsigned long phys, unsigned long size) |
1da177e4 | 107 | { |
1da177e4 | 108 | |
f34fa82b YL |
109 | if (!phys || !size) |
110 | return NULL; | |
111 | ||
f7750a79 | 112 | return early_memremap(phys, size); |
7d97277b | 113 | } |
45f1330a | 114 | |
6c9a58e8 | 115 | void __init __acpi_unmap_table(void __iomem *map, unsigned long size) |
7d97277b YL |
116 | { |
117 | if (!map || !size) | |
118 | return; | |
1da177e4 | 119 | |
f7750a79 | 120 | early_memunmap(map, size); |
1da177e4 | 121 | } |
1da177e4 | 122 | |
1da177e4 | 123 | #ifdef CONFIG_X86_LOCAL_APIC |
15a58ed1 | 124 | static int __init acpi_parse_madt(struct acpi_table_header *table) |
1da177e4 | 125 | { |
4be44fcd | 126 | struct acpi_table_madt *madt = NULL; |
1da177e4 | 127 | |
93984fbd | 128 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
1da177e4 LT |
129 | return -EINVAL; |
130 | ||
15a58ed1 | 131 | madt = (struct acpi_table_madt *)table; |
1da177e4 LT |
132 | if (!madt) { |
133 | printk(KERN_WARNING PREFIX "Unable to map MADT\n"); | |
134 | return -ENODEV; | |
135 | } | |
136 | ||
ad363f80 AS |
137 | if (madt->address) { |
138 | acpi_lapic_addr = (u64) madt->address; | |
1da177e4 LT |
139 | |
140 | printk(KERN_DEBUG PREFIX "Local APIC address 0x%08x\n", | |
ad363f80 | 141 | madt->address); |
1da177e4 LT |
142 | } |
143 | ||
306db03b IM |
144 | default_acpi_madt_oem_check(madt->header.oem_id, |
145 | madt->header.oem_table_id); | |
4be44fcd | 146 | |
1da177e4 LT |
147 | return 0; |
148 | } | |
149 | ||
7e1f85f9 JL |
150 | /** |
151 | * acpi_register_lapic - register a local apic and generates a logic cpu number | |
152 | * @id: local apic id to register | |
3e9e57fa | 153 | * @acpiid: ACPI id to register |
7e1f85f9 JL |
154 | * @enabled: this cpu is enabled or not |
155 | * | |
156 | * Returns the logic cpu number which maps to the local apic | |
157 | */ | |
3e9e57fa | 158 | static int acpi_register_lapic(int id, u32 acpiid, u8 enabled) |
dfac2189 | 159 | { |
fb3bbd6a | 160 | unsigned int ver = 0; |
3e9e57fa | 161 | int cpu; |
fb3bbd6a | 162 | |
82982d72 | 163 | if (id >= MAX_LOCAL_APIC) { |
d3bd0588 | 164 | printk(KERN_INFO PREFIX "skipped apicid that is too big\n"); |
7e1f85f9 | 165 | return -EINVAL; |
d3bd0588 YL |
166 | } |
167 | ||
2b85b3d2 DL |
168 | if (!enabled) { |
169 | ++disabled_cpus; | |
170 | return -EINVAL; | |
171 | } | |
172 | ||
fb3bbd6a | 173 | if (boot_cpu_physical_apicid != -1U) |
cff9ab2b | 174 | ver = boot_cpu_apic_version; |
fb3bbd6a | 175 | |
2b85b3d2 | 176 | cpu = generic_processor_info(id, ver); |
3e9e57fa VK |
177 | if (cpu >= 0) |
178 | early_per_cpu(x86_cpu_to_acpiid, cpu) = acpiid; | |
179 | ||
180 | return cpu; | |
dfac2189 AS |
181 | } |
182 | ||
7237d3de | 183 | static int __init |
60574d1e | 184 | acpi_parse_x2apic(union acpi_subtable_headers *header, const unsigned long end) |
7237d3de SS |
185 | { |
186 | struct acpi_madt_local_x2apic *processor = NULL; | |
861a6ee8 | 187 | #ifdef CONFIG_X86_X2APIC |
a774635d | 188 | u32 apic_id; |
a35fd282 | 189 | u8 enabled; |
861a6ee8 | 190 | #endif |
7237d3de SS |
191 | |
192 | processor = (struct acpi_madt_local_x2apic *)header; | |
193 | ||
194 | if (BAD_MADT_ENTRY(processor, end)) | |
195 | return -EINVAL; | |
196 | ||
60574d1e | 197 | acpi_table_print_madt_entry(&header->common); |
7237d3de | 198 | |
861a6ee8 | 199 | #ifdef CONFIG_X86_X2APIC |
a35fd282 YL |
200 | apic_id = processor->local_apic_id; |
201 | enabled = processor->lapic_flags & ACPI_MADT_ENABLED; | |
861a6ee8 | 202 | |
10daf10a DL |
203 | /* Ignore invalid ID */ |
204 | if (apic_id == 0xffffffff) | |
205 | return 0; | |
206 | ||
7237d3de SS |
207 | /* |
208 | * We need to register disabled CPU as well to permit | |
209 | * counting disabled CPUs. This allows us to size | |
210 | * cpus_possible_map more accurately, to permit | |
211 | * to not preallocating memory for all NR_CPUS | |
212 | * when we use CPU hotplug. | |
213 | */ | |
a774635d LR |
214 | if (!apic->apic_id_valid(apic_id)) { |
215 | if (enabled) | |
216 | pr_warn(PREFIX "x2apic entry ignored\n"); | |
217 | return 0; | |
218 | } | |
219 | ||
220 | acpi_register_lapic(apic_id, processor->uid, enabled); | |
7237d3de SS |
221 | #else |
222 | printk(KERN_WARNING PREFIX "x2apic entry ignored\n"); | |
223 | #endif | |
224 | ||
225 | return 0; | |
226 | } | |
227 | ||
1da177e4 | 228 | static int __init |
60574d1e | 229 | acpi_parse_lapic(union acpi_subtable_headers * header, const unsigned long end) |
1da177e4 | 230 | { |
5f3b1a8b | 231 | struct acpi_madt_local_apic *processor = NULL; |
1da177e4 | 232 | |
5f3b1a8b | 233 | processor = (struct acpi_madt_local_apic *)header; |
1da177e4 LT |
234 | |
235 | if (BAD_MADT_ENTRY(processor, end)) | |
236 | return -EINVAL; | |
237 | ||
60574d1e | 238 | acpi_table_print_madt_entry(&header->common); |
1da177e4 | 239 | |
f3bf1dbe TG |
240 | /* Ignore invalid ID */ |
241 | if (processor->id == 0xff) | |
242 | return 0; | |
243 | ||
7f66ae48 AR |
244 | /* |
245 | * We need to register disabled CPU as well to permit | |
246 | * counting disabled CPUs. This allows us to size | |
247 | * cpus_possible_map more accurately, to permit | |
248 | * to not preallocating memory for all NR_CPUS | |
249 | * when we use CPU hotplug. | |
250 | */ | |
dfac2189 | 251 | acpi_register_lapic(processor->id, /* APIC ID */ |
3e9e57fa | 252 | processor->processor_id, /* ACPI ID */ |
dfac2189 | 253 | processor->lapic_flags & ACPI_MADT_ENABLED); |
1da177e4 LT |
254 | |
255 | return 0; | |
256 | } | |
257 | ||
ac049c1d | 258 | static int __init |
60574d1e | 259 | acpi_parse_sapic(union acpi_subtable_headers *header, const unsigned long end) |
ac049c1d JS |
260 | { |
261 | struct acpi_madt_local_sapic *processor = NULL; | |
262 | ||
263 | processor = (struct acpi_madt_local_sapic *)header; | |
264 | ||
265 | if (BAD_MADT_ENTRY(processor, end)) | |
266 | return -EINVAL; | |
267 | ||
60574d1e | 268 | acpi_table_print_madt_entry(&header->common); |
ac049c1d | 269 | |
dfac2189 | 270 | acpi_register_lapic((processor->id << 8) | processor->eid,/* APIC ID */ |
3e9e57fa | 271 | processor->processor_id, /* ACPI ID */ |
dfac2189 | 272 | processor->lapic_flags & ACPI_MADT_ENABLED); |
ac049c1d JS |
273 | |
274 | return 0; | |
275 | } | |
276 | ||
1da177e4 | 277 | static int __init |
60574d1e | 278 | acpi_parse_lapic_addr_ovr(union acpi_subtable_headers * header, |
4be44fcd | 279 | const unsigned long end) |
1da177e4 | 280 | { |
5f3b1a8b | 281 | struct acpi_madt_local_apic_override *lapic_addr_ovr = NULL; |
1da177e4 | 282 | |
5f3b1a8b | 283 | lapic_addr_ovr = (struct acpi_madt_local_apic_override *)header; |
1da177e4 LT |
284 | |
285 | if (BAD_MADT_ENTRY(lapic_addr_ovr, end)) | |
286 | return -EINVAL; | |
287 | ||
60574d1e | 288 | acpi_table_print_madt_entry(&header->common); |
6de42119 | 289 | |
1da177e4 LT |
290 | acpi_lapic_addr = lapic_addr_ovr->address; |
291 | ||
292 | return 0; | |
293 | } | |
294 | ||
7237d3de | 295 | static int __init |
60574d1e | 296 | acpi_parse_x2apic_nmi(union acpi_subtable_headers *header, |
7237d3de SS |
297 | const unsigned long end) |
298 | { | |
299 | struct acpi_madt_local_x2apic_nmi *x2apic_nmi = NULL; | |
300 | ||
301 | x2apic_nmi = (struct acpi_madt_local_x2apic_nmi *)header; | |
302 | ||
303 | if (BAD_MADT_ENTRY(x2apic_nmi, end)) | |
304 | return -EINVAL; | |
305 | ||
60574d1e | 306 | acpi_table_print_madt_entry(&header->common); |
7237d3de SS |
307 | |
308 | if (x2apic_nmi->lint != 1) | |
309 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
310 | ||
311 | return 0; | |
312 | } | |
313 | ||
1da177e4 | 314 | static int __init |
60574d1e | 315 | acpi_parse_lapic_nmi(union acpi_subtable_headers * header, const unsigned long end) |
1da177e4 | 316 | { |
5f3b1a8b | 317 | struct acpi_madt_local_apic_nmi *lapic_nmi = NULL; |
1da177e4 | 318 | |
5f3b1a8b | 319 | lapic_nmi = (struct acpi_madt_local_apic_nmi *)header; |
1da177e4 LT |
320 | |
321 | if (BAD_MADT_ENTRY(lapic_nmi, end)) | |
322 | return -EINVAL; | |
323 | ||
60574d1e | 324 | acpi_table_print_madt_entry(&header->common); |
1da177e4 LT |
325 | |
326 | if (lapic_nmi->lint != 1) | |
327 | printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); | |
328 | ||
329 | return 0; | |
330 | } | |
331 | ||
4be44fcd | 332 | #endif /*CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 333 | |
8466361a | 334 | #ifdef CONFIG_X86_IO_APIC |
8d7cdcb9 JL |
335 | #define MP_ISA_BUS 0 |
336 | ||
4ee2ec1b VS |
337 | static int __init mp_register_ioapic_irq(u8 bus_irq, u8 polarity, |
338 | u8 trigger, u32 gsi); | |
339 | ||
8d7cdcb9 JL |
340 | static void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, |
341 | u32 gsi) | |
342 | { | |
dad5ab0d SH |
343 | /* |
344 | * Check bus_irq boundary. | |
345 | */ | |
346 | if (bus_irq >= NR_IRQS_LEGACY) { | |
347 | pr_warn("Invalid bus_irq %u for legacy override\n", bus_irq); | |
348 | return; | |
349 | } | |
350 | ||
8d7cdcb9 JL |
351 | /* |
352 | * TBD: This check is for faulty timer entries, where the override | |
353 | * erroneously sets the trigger to level, resulting in a HUGE | |
354 | * increase of timer interrupts! | |
355 | */ | |
356 | if ((bus_irq == 0) && (trigger == 3)) | |
357 | trigger = 1; | |
358 | ||
4ee2ec1b VS |
359 | if (mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi) < 0) |
360 | return; | |
2e0ad0e2 JL |
361 | /* |
362 | * Reset default identity mapping if gsi is also an legacy IRQ, | |
363 | * otherwise there will be more than one entry with the same GSI | |
364 | * and acpi_isa_irq_to_gsi() may give wrong result. | |
365 | */ | |
95d76acc | 366 | if (gsi < nr_legacy_irqs() && isa_irq_to_gsi[gsi] == gsi) |
220580fb | 367 | isa_irq_to_gsi[gsi] = INVALID_ACPI_IRQ; |
8d7cdcb9 JL |
368 | isa_irq_to_gsi[bus_irq] = gsi; |
369 | } | |
370 | ||
371 | static int mp_config_acpi_gsi(struct device *dev, u32 gsi, int trigger, | |
372 | int polarity) | |
373 | { | |
374 | #ifdef CONFIG_X86_MPPARSE | |
375 | struct mpc_intsrc mp_irq; | |
376 | struct pci_dev *pdev; | |
377 | unsigned char number; | |
378 | unsigned int devfn; | |
379 | int ioapic; | |
380 | u8 pin; | |
381 | ||
382 | if (!acpi_ioapic) | |
383 | return 0; | |
384 | if (!dev || !dev_is_pci(dev)) | |
385 | return 0; | |
386 | ||
387 | pdev = to_pci_dev(dev); | |
388 | number = pdev->bus->number; | |
389 | devfn = pdev->devfn; | |
390 | pin = pdev->pin; | |
391 | /* print the entry should happen on mptable identically */ | |
392 | mp_irq.type = MP_INTSRC; | |
393 | mp_irq.irqtype = mp_INT; | |
394 | mp_irq.irqflag = (trigger == ACPI_EDGE_SENSITIVE ? 4 : 0x0c) | | |
395 | (polarity == ACPI_ACTIVE_HIGH ? 1 : 3); | |
396 | mp_irq.srcbus = number; | |
397 | mp_irq.srcbusirq = (((devfn >> 3) & 0x1f) << 2) | ((pin - 1) & 3); | |
398 | ioapic = mp_find_ioapic(gsi); | |
399 | mp_irq.dstapic = mpc_ioapic_id(ioapic); | |
400 | mp_irq.dstirq = mp_find_ioapic_pin(ioapic, gsi); | |
401 | ||
402 | mp_save_irq(&mp_irq); | |
403 | #endif | |
404 | return 0; | |
405 | } | |
406 | ||
25271415 VS |
407 | static int __init mp_register_ioapic_irq(u8 bus_irq, u8 polarity, |
408 | u8 trigger, u32 gsi) | |
409 | { | |
410 | struct mpc_intsrc mp_irq; | |
411 | int ioapic, pin; | |
412 | ||
413 | /* Convert 'gsi' to 'ioapic.pin'(INTIN#) */ | |
414 | ioapic = mp_find_ioapic(gsi); | |
415 | if (ioapic < 0) { | |
416 | pr_warn("Failed to find ioapic for gsi : %u\n", gsi); | |
417 | return ioapic; | |
418 | } | |
419 | ||
420 | pin = mp_find_ioapic_pin(ioapic, gsi); | |
421 | ||
422 | mp_irq.type = MP_INTSRC; | |
423 | mp_irq.irqtype = mp_INT; | |
424 | mp_irq.irqflag = (trigger << 2) | polarity; | |
425 | mp_irq.srcbus = MP_ISA_BUS; | |
426 | mp_irq.srcbusirq = bus_irq; | |
427 | mp_irq.dstapic = mpc_ioapic_id(ioapic); | |
428 | mp_irq.dstirq = pin; | |
429 | ||
430 | mp_save_irq(&mp_irq); | |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
1da177e4 | 435 | static int __init |
60574d1e | 436 | acpi_parse_ioapic(union acpi_subtable_headers * header, const unsigned long end) |
1da177e4 | 437 | { |
5f3b1a8b | 438 | struct acpi_madt_io_apic *ioapic = NULL; |
ca7e28aa JL |
439 | struct ioapic_domain_cfg cfg = { |
440 | .type = IOAPIC_DOMAIN_DYNAMIC, | |
f7a0c786 | 441 | .ops = &mp_ioapic_irqdomain_ops, |
ca7e28aa | 442 | }; |
1da177e4 | 443 | |
5f3b1a8b | 444 | ioapic = (struct acpi_madt_io_apic *)header; |
1da177e4 LT |
445 | |
446 | if (BAD_MADT_ENTRY(ioapic, end)) | |
447 | return -EINVAL; | |
4be44fcd | 448 | |
60574d1e | 449 | acpi_table_print_madt_entry(&header->common); |
1da177e4 | 450 | |
ca7e28aa JL |
451 | /* Statically assign IRQ numbers for IOAPICs hosting legacy IRQs */ |
452 | if (ioapic->global_irq_base < nr_legacy_irqs()) | |
453 | cfg.type = IOAPIC_DOMAIN_LEGACY; | |
454 | ||
455 | mp_register_ioapic(ioapic->id, ioapic->address, ioapic->global_irq_base, | |
456 | &cfg); | |
4be44fcd | 457 | |
1da177e4 LT |
458 | return 0; |
459 | } | |
460 | ||
461 | /* | |
462 | * Parse Interrupt Source Override for the ACPI SCI | |
463 | */ | |
9d2062b8 | 464 | static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger, u32 gsi) |
1da177e4 LT |
465 | { |
466 | if (trigger == 0) /* compatible SCI trigger is level */ | |
467 | trigger = 3; | |
468 | ||
469 | if (polarity == 0) /* compatible SCI polarity is low */ | |
470 | polarity = 3; | |
471 | ||
472 | /* Command-line over-ride via acpi_sci= */ | |
5f3b1a8b AS |
473 | if (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) |
474 | trigger = (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) >> 2; | |
1da177e4 | 475 | |
5f3b1a8b AS |
476 | if (acpi_sci_flags & ACPI_MADT_POLARITY_MASK) |
477 | polarity = acpi_sci_flags & ACPI_MADT_POLARITY_MASK; | |
1da177e4 | 478 | |
25271415 VS |
479 | if (bus_irq < NR_IRQS_LEGACY) |
480 | mp_override_legacy_irq(bus_irq, polarity, trigger, gsi); | |
481 | else | |
482 | mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi); | |
483 | ||
f1caa61d | 484 | acpi_penalize_sci_irq(bus_irq, trigger, polarity); |
1da177e4 LT |
485 | |
486 | /* | |
487 | * stash over-ride to indicate we've been here | |
cee324b1 | 488 | * and for later update of acpi_gbl_FADT |
1da177e4 | 489 | */ |
7bdd21ce | 490 | acpi_sci_override_gsi = gsi; |
1da177e4 LT |
491 | return; |
492 | } | |
493 | ||
494 | static int __init | |
60574d1e | 495 | acpi_parse_int_src_ovr(union acpi_subtable_headers * header, |
4be44fcd | 496 | const unsigned long end) |
1da177e4 | 497 | { |
5f3b1a8b | 498 | struct acpi_madt_interrupt_override *intsrc = NULL; |
1da177e4 | 499 | |
5f3b1a8b | 500 | intsrc = (struct acpi_madt_interrupt_override *)header; |
1da177e4 LT |
501 | |
502 | if (BAD_MADT_ENTRY(intsrc, end)) | |
503 | return -EINVAL; | |
504 | ||
60574d1e | 505 | acpi_table_print_madt_entry(&header->common); |
1da177e4 | 506 | |
5f3b1a8b | 507 | if (intsrc->source_irq == acpi_gbl_FADT.sci_interrupt) { |
9d2062b8 | 508 | acpi_sci_ioapic_setup(intsrc->source_irq, |
5f3b1a8b | 509 | intsrc->inti_flags & ACPI_MADT_POLARITY_MASK, |
9d2062b8 EB |
510 | (intsrc->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2, |
511 | intsrc->global_irq); | |
1da177e4 LT |
512 | return 0; |
513 | } | |
514 | ||
ae10ccdc | 515 | if (intsrc->source_irq == 0) { |
7f74f8f2 | 516 | if (acpi_skip_timer_override) { |
ae10ccdc | 517 | printk(PREFIX "BIOS IRQ0 override ignored.\n"); |
7f74f8f2 AH |
518 | return 0; |
519 | } | |
ae10ccdc FT |
520 | |
521 | if ((intsrc->global_irq == 2) && acpi_fix_pin2_polarity | |
522 | && (intsrc->inti_flags & ACPI_MADT_POLARITY_MASK)) { | |
7f74f8f2 AH |
523 | intsrc->inti_flags &= ~ACPI_MADT_POLARITY_MASK; |
524 | printk(PREFIX "BIOS IRQ0 pin2 override: forcing polarity to high active.\n"); | |
525 | } | |
1da177e4 LT |
526 | } |
527 | ||
5f3b1a8b AS |
528 | mp_override_legacy_irq(intsrc->source_irq, |
529 | intsrc->inti_flags & ACPI_MADT_POLARITY_MASK, | |
530 | (intsrc->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2, | |
531 | intsrc->global_irq); | |
1da177e4 LT |
532 | |
533 | return 0; | |
534 | } | |
535 | ||
1da177e4 | 536 | static int __init |
60574d1e | 537 | acpi_parse_nmi_src(union acpi_subtable_headers * header, const unsigned long end) |
1da177e4 | 538 | { |
5f3b1a8b | 539 | struct acpi_madt_nmi_source *nmi_src = NULL; |
1da177e4 | 540 | |
5f3b1a8b | 541 | nmi_src = (struct acpi_madt_nmi_source *)header; |
1da177e4 LT |
542 | |
543 | if (BAD_MADT_ENTRY(nmi_src, end)) | |
544 | return -EINVAL; | |
545 | ||
60574d1e | 546 | acpi_table_print_madt_entry(&header->common); |
1da177e4 LT |
547 | |
548 | /* TBD: Support nimsrc entries? */ | |
549 | ||
550 | return 0; | |
551 | } | |
552 | ||
4be44fcd | 553 | #endif /* CONFIG_X86_IO_APIC */ |
1da177e4 | 554 | |
1da177e4 LT |
555 | /* |
556 | * acpi_pic_sci_set_trigger() | |
5f3b1a8b | 557 | * |
1da177e4 LT |
558 | * use ELCR to set PIC-mode trigger type for SCI |
559 | * | |
560 | * If a PIC-mode SCI is not recognized or gives spurious IRQ7's | |
561 | * it may require Edge Trigger -- use "acpi_sci=edge" | |
562 | * | |
563 | * Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers | |
564 | * for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge. | |
27b46d76 SA |
565 | * ECLR1 is IRQs 0-7 (IRQ 0, 1, 2 must be 0) |
566 | * ECLR2 is IRQs 8-15 (IRQ 8, 13 must be 0) | |
1da177e4 LT |
567 | */ |
568 | ||
4be44fcd | 569 | void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger) |
1da177e4 LT |
570 | { |
571 | unsigned int mask = 1 << irq; | |
572 | unsigned int old, new; | |
573 | ||
574 | /* Real old ELCR mask */ | |
575 | old = inb(0x4d0) | (inb(0x4d1) << 8); | |
576 | ||
577 | /* | |
27b46d76 | 578 | * If we use ACPI to set PCI IRQs, then we should clear ELCR |
1da177e4 LT |
579 | * since we will set it correctly as we enable the PCI irq |
580 | * routing. | |
581 | */ | |
582 | new = acpi_noirq ? old : 0; | |
583 | ||
584 | /* | |
585 | * Update SCI information in the ELCR, it isn't in the PCI | |
586 | * routing tables.. | |
587 | */ | |
588 | switch (trigger) { | |
4be44fcd | 589 | case 1: /* Edge - clear */ |
1da177e4 LT |
590 | new &= ~mask; |
591 | break; | |
4be44fcd | 592 | case 3: /* Level - set */ |
1da177e4 LT |
593 | new |= mask; |
594 | break; | |
595 | } | |
596 | ||
597 | if (old == new) | |
598 | return; | |
599 | ||
600 | printk(PREFIX "setting ELCR to %04x (from %04x)\n", new, old); | |
601 | outb(new, 0x4d0); | |
602 | outb(new >> 8, 0x4d1); | |
603 | } | |
604 | ||
6b9fb708 | 605 | int acpi_gsi_to_irq(u32 gsi, unsigned int *irqp) |
1da177e4 | 606 | { |
b568b860 JL |
607 | int rc, irq, trigger, polarity; |
608 | ||
1ea76fba JL |
609 | if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { |
610 | *irqp = gsi; | |
611 | return 0; | |
612 | } | |
613 | ||
b568b860 | 614 | rc = acpi_get_override_irq(gsi, &trigger, &polarity); |
a89bca27 AS |
615 | if (rc) |
616 | return rc; | |
b568b860 | 617 | |
a89bca27 AS |
618 | trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE; |
619 | polarity = polarity ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH; | |
620 | irq = acpi_register_gsi(NULL, gsi, trigger, polarity); | |
621 | if (irq < 0) | |
622 | return irq; | |
623 | ||
624 | *irqp = irq; | |
625 | return 0; | |
1da177e4 | 626 | } |
81e88fdc | 627 | EXPORT_SYMBOL_GPL(acpi_gsi_to_irq); |
1da177e4 | 628 | |
2c2df841 EB |
629 | int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi) |
630 | { | |
95d76acc | 631 | if (isa_irq < nr_legacy_irqs() && |
220580fb | 632 | isa_irq_to_gsi[isa_irq] != INVALID_ACPI_IRQ) { |
032329ee JL |
633 | *gsi = isa_irq_to_gsi[isa_irq]; |
634 | return 0; | |
635 | } | |
636 | ||
637 | return -1; | |
2c2df841 EB |
638 | } |
639 | ||
2f065aef JF |
640 | static int acpi_register_gsi_pic(struct device *dev, u32 gsi, |
641 | int trigger, int polarity) | |
1da177e4 | 642 | { |
1da177e4 LT |
643 | #ifdef CONFIG_PCI |
644 | /* | |
645 | * Make sure all (legacy) PCI IRQs are set as level-triggered. | |
646 | */ | |
2f065aef | 647 | if (trigger == ACPI_LEVEL_SENSITIVE) |
ea6cd250 | 648 | elcr_set_level_irq(gsi); |
1da177e4 LT |
649 | #endif |
650 | ||
2f065aef JF |
651 | return gsi; |
652 | } | |
653 | ||
2f82c9dc | 654 | #ifdef CONFIG_X86_LOCAL_APIC |
2f065aef JF |
655 | static int acpi_register_gsi_ioapic(struct device *dev, u32 gsi, |
656 | int trigger, int polarity) | |
657 | { | |
84245af7 | 658 | int irq = gsi; |
1da177e4 | 659 | #ifdef CONFIG_X86_IO_APIC |
46176f39 JL |
660 | int node; |
661 | struct irq_alloc_info info; | |
662 | ||
663 | node = dev ? dev_to_node(dev) : NUMA_NO_NODE; | |
664 | trigger = trigger == ACPI_EDGE_SENSITIVE ? 0 : 1; | |
665 | polarity = polarity == ACPI_ACTIVE_HIGH ? 0 : 1; | |
666 | ioapic_set_alloc_attr(&info, node, trigger, polarity); | |
667 | ||
5da2fd26 | 668 | mutex_lock(&acpi_ioapic_lock); |
46176f39 JL |
669 | irq = mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC, &info); |
670 | /* Don't set up the ACPI SCI because it's already set up */ | |
7d7fb91c | 671 | if (irq >= 0 && enable_update_mptable && gsi != acpi_gbl_FADT.sci_interrupt) |
46176f39 | 672 | mp_config_acpi_gsi(dev, gsi, trigger, polarity); |
5da2fd26 | 673 | mutex_unlock(&acpi_ioapic_lock); |
1da177e4 | 674 | #endif |
2f065aef | 675 | |
84245af7 | 676 | return irq; |
2f065aef JF |
677 | } |
678 | ||
6a38fa0e JL |
679 | static void acpi_unregister_gsi_ioapic(u32 gsi) |
680 | { | |
681 | #ifdef CONFIG_X86_IO_APIC | |
46176f39 JL |
682 | int irq; |
683 | ||
5da2fd26 | 684 | mutex_lock(&acpi_ioapic_lock); |
46176f39 JL |
685 | irq = mp_map_gsi_to_irq(gsi, 0, NULL); |
686 | if (irq > 0) | |
687 | mp_unmap_irq(irq); | |
5da2fd26 | 688 | mutex_unlock(&acpi_ioapic_lock); |
6a38fa0e | 689 | #endif |
2f065aef | 690 | } |
2f82c9dc | 691 | #endif |
2f065aef | 692 | |
90f6881e JF |
693 | int (*__acpi_register_gsi)(struct device *dev, u32 gsi, |
694 | int trigger, int polarity) = acpi_register_gsi_pic; | |
6a38fa0e | 695 | void (*__acpi_unregister_gsi)(u32 gsi) = NULL; |
2f065aef | 696 | |
d6a77ead KRW |
697 | #ifdef CONFIG_ACPI_SLEEP |
698 | int (*acpi_suspend_lowlevel)(void) = x86_acpi_suspend_lowlevel; | |
699 | #else | |
700 | int (*acpi_suspend_lowlevel)(void); | |
701 | #endif | |
702 | ||
2f065aef JF |
703 | /* |
704 | * success: return IRQ number (>=0) | |
705 | * failure: return < 0 | |
706 | */ | |
707 | int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity) | |
708 | { | |
84245af7 | 709 | return __acpi_register_gsi(dev, gsi, trigger, polarity); |
1da177e4 | 710 | } |
35e92b78 AS |
711 | EXPORT_SYMBOL_GPL(acpi_register_gsi); |
712 | ||
713 | void acpi_unregister_gsi(u32 gsi) | |
714 | { | |
6a38fa0e JL |
715 | if (__acpi_unregister_gsi) |
716 | __acpi_unregister_gsi(gsi); | |
35e92b78 AS |
717 | } |
718 | EXPORT_SYMBOL_GPL(acpi_unregister_gsi); | |
4be44fcd | 719 | |
9f50c6ea | 720 | #ifdef CONFIG_X86_LOCAL_APIC |
e819813f | 721 | static void __init acpi_set_irq_model_ioapic(void) |
2f065aef JF |
722 | { |
723 | acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; | |
724 | __acpi_register_gsi = acpi_register_gsi_ioapic; | |
6a38fa0e | 725 | __acpi_unregister_gsi = acpi_unregister_gsi_ioapic; |
2f065aef JF |
726 | acpi_ioapic = 1; |
727 | } | |
9f50c6ea | 728 | #endif |
2f065aef | 729 | |
1da177e4 LT |
730 | /* |
731 | * ACPI based hotplug support for CPU | |
732 | */ | |
733 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | |
d8191fa4 | 734 | #include <acpi/processor.h> |
009cbadb | 735 | |
c962cff1 | 736 | static int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid) |
0271f910 HL |
737 | { |
738 | #ifdef CONFIG_ACPI_NUMA | |
739 | int nid; | |
740 | ||
741 | nid = acpi_get_node(handle); | |
4370a3ef | 742 | if (nid != NUMA_NO_NODE) { |
896dc506 JL |
743 | set_apicid_to_node(physid, nid); |
744 | numa_set_node(cpu, nid); | |
745 | } | |
0271f910 | 746 | #endif |
dc6db24d | 747 | return 0; |
0271f910 | 748 | } |
009cbadb | 749 | |
febf2407 VK |
750 | int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, |
751 | int *pcpu) | |
1da177e4 | 752 | { |
73fea175 | 753 | int cpu; |
ee943a82 | 754 | |
febf2407 | 755 | cpu = acpi_register_lapic(physid, acpi_id, ACPI_MADT_ENABLED); |
7e1f85f9 JL |
756 | if (cpu < 0) { |
757 | pr_info(PREFIX "Unable to map lapic to logical cpu number\n"); | |
758 | return cpu; | |
73fea175 AR |
759 | } |
760 | ||
d8191fa4 | 761 | acpi_processor_set_pdc(handle); |
0271f910 | 762 | acpi_map_cpu2node(handle, cpu, physid); |
73fea175 AR |
763 | |
764 | *pcpu = cpu; | |
7e1f85f9 | 765 | return 0; |
1da177e4 | 766 | } |
d02dc27d | 767 | EXPORT_SYMBOL(acpi_map_cpu); |
1da177e4 | 768 | |
d02dc27d | 769 | int acpi_unmap_cpu(int cpu) |
1da177e4 | 770 | { |
c4c60524 WC |
771 | #ifdef CONFIG_ACPI_NUMA |
772 | set_apicid_to_node(per_cpu(x86_cpu_to_apicid, cpu), NUMA_NO_NODE); | |
773 | #endif | |
774 | ||
71fff5e6 | 775 | per_cpu(x86_cpu_to_apicid, cpu) = -1; |
9628937d | 776 | set_cpu_present(cpu, false); |
73fea175 AR |
777 | num_processors--; |
778 | ||
779 | return (0); | |
1da177e4 | 780 | } |
d02dc27d | 781 | EXPORT_SYMBOL(acpi_unmap_cpu); |
4be44fcd | 782 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ |
1da177e4 | 783 | |
4be44fcd | 784 | int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) |
b1bb248a | 785 | { |
7db298cb JL |
786 | int ret = -ENOSYS; |
787 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
788 | int ioapic_id; | |
789 | u64 addr; | |
790 | struct ioapic_domain_cfg cfg = { | |
791 | .type = IOAPIC_DOMAIN_DYNAMIC, | |
f7a0c786 | 792 | .ops = &mp_ioapic_irqdomain_ops, |
7db298cb JL |
793 | }; |
794 | ||
795 | ioapic_id = acpi_get_ioapic_id(handle, gsi_base, &addr); | |
796 | if (ioapic_id < 0) { | |
797 | unsigned long long uid; | |
798 | acpi_status status; | |
799 | ||
800 | status = acpi_evaluate_integer(handle, METHOD_NAME__UID, | |
801 | NULL, &uid); | |
802 | if (ACPI_FAILURE(status)) { | |
803 | acpi_handle_warn(handle, "failed to get IOAPIC ID.\n"); | |
804 | return -EINVAL; | |
805 | } | |
806 | ioapic_id = (int)uid; | |
807 | } | |
808 | ||
809 | mutex_lock(&acpi_ioapic_lock); | |
810 | ret = mp_register_ioapic(ioapic_id, phys_addr, gsi_base, &cfg); | |
811 | mutex_unlock(&acpi_ioapic_lock); | |
812 | #endif | |
813 | ||
814 | return ret; | |
b1bb248a KK |
815 | } |
816 | EXPORT_SYMBOL(acpi_register_ioapic); | |
817 | ||
4be44fcd | 818 | int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base) |
b1bb248a | 819 | { |
15516a3b JL |
820 | int ret = -ENOSYS; |
821 | ||
822 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
823 | mutex_lock(&acpi_ioapic_lock); | |
824 | ret = mp_unregister_ioapic(gsi_base); | |
825 | mutex_unlock(&acpi_ioapic_lock); | |
826 | #endif | |
4be44fcd | 827 | |
15516a3b JL |
828 | return ret; |
829 | } | |
b1bb248a KK |
830 | EXPORT_SYMBOL(acpi_unregister_ioapic); |
831 | ||
e89900c9 JL |
832 | /** |
833 | * acpi_ioapic_registered - Check whether IOAPIC assoicatied with @gsi_base | |
834 | * has been registered | |
a97673a1 | 835 | * @handle: ACPI handle of the IOAPIC device |
e89900c9 JL |
836 | * @gsi_base: GSI base associated with the IOAPIC |
837 | * | |
838 | * Assume caller holds some type of lock to serialize acpi_ioapic_registered() | |
839 | * with acpi_register_ioapic()/acpi_unregister_ioapic(). | |
840 | */ | |
841 | int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base) | |
842 | { | |
843 | int ret = 0; | |
844 | ||
845 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
846 | mutex_lock(&acpi_ioapic_lock); | |
847 | ret = mp_ioapic_registered(gsi_base); | |
848 | mutex_unlock(&acpi_ioapic_lock); | |
849 | #endif | |
850 | ||
851 | return ret; | |
852 | } | |
853 | ||
5f3b1a8b | 854 | static int __init acpi_parse_sbf(struct acpi_table_header *table) |
1da177e4 | 855 | { |
2fad9308 | 856 | struct acpi_table_boot *sb = (struct acpi_table_boot *)table; |
1da177e4 | 857 | |
5f3b1a8b | 858 | sbf_port = sb->cmos_index; /* Save CMOS port */ |
1da177e4 LT |
859 | |
860 | return 0; | |
861 | } | |
862 | ||
1da177e4 | 863 | #ifdef CONFIG_HPET_TIMER |
2d0c87c3 | 864 | #include <asm/hpet.h> |
1da177e4 | 865 | |
dd96dc32 | 866 | static struct resource *hpet_res __initdata; |
a1dfd851 | 867 | |
5f3b1a8b | 868 | static int __init acpi_parse_hpet(struct acpi_table_header *table) |
1da177e4 | 869 | { |
2fad9308 | 870 | struct acpi_table_hpet *hpet_tbl = (struct acpi_table_hpet *)table; |
1da177e4 | 871 | |
ad363f80 | 872 | if (hpet_tbl->address.space_id != ACPI_SPACE_MEM) { |
1da177e4 LT |
873 | printk(KERN_WARNING PREFIX "HPET timers must be located in " |
874 | "memory.\n"); | |
875 | return -1; | |
876 | } | |
f0f4c343 | 877 | |
2d0c87c3 | 878 | hpet_address = hpet_tbl->address.address; |
c8bc6f3c | 879 | hpet_blockid = hpet_tbl->sequence; |
f4df73c2 TG |
880 | |
881 | /* | |
882 | * Some broken BIOSes advertise HPET at 0x0. We really do not | |
883 | * want to allocate a resource there. | |
884 | */ | |
885 | if (!hpet_address) { | |
886 | printk(KERN_WARNING PREFIX | |
887 | "HPET id: %#x base: %#lx is invalid\n", | |
888 | hpet_tbl->id, hpet_address); | |
889 | return 0; | |
890 | } | |
891 | #ifdef CONFIG_X86_64 | |
892 | /* | |
893 | * Some even more broken BIOSes advertise HPET at | |
894 | * 0xfed0000000000000 instead of 0xfed00000. Fix it up and add | |
895 | * some noise: | |
896 | */ | |
897 | if (hpet_address == 0xfed0000000000000UL) { | |
898 | if (!hpet_force_user) { | |
899 | printk(KERN_WARNING PREFIX "HPET id: %#x " | |
900 | "base: 0xfed0000000000000 is bogus\n " | |
901 | "try hpet=force on the kernel command line to " | |
902 | "fix it up to 0xfed00000.\n", hpet_tbl->id); | |
903 | hpet_address = 0; | |
904 | return 0; | |
905 | } | |
906 | printk(KERN_WARNING PREFIX | |
907 | "HPET id: %#x base: 0xfed0000000000000 fixed up " | |
908 | "to 0xfed00000.\n", hpet_tbl->id); | |
909 | hpet_address >>= 32; | |
910 | } | |
911 | #endif | |
4be44fcd | 912 | printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", |
2d0c87c3 | 913 | hpet_tbl->id, hpet_address); |
1da177e4 | 914 | |
a1dfd851 AD |
915 | /* |
916 | * Allocate and initialize the HPET firmware resource for adding into | |
917 | * the resource tree during the lateinit timeframe. | |
918 | */ | |
919 | #define HPET_RESOURCE_NAME_SIZE 9 | |
2a5bda5a | 920 | hpet_res = memblock_alloc(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE, |
7e1c4e27 | 921 | SMP_CACHE_BYTES); |
8a7f97b9 MR |
922 | if (!hpet_res) |
923 | panic("%s: Failed to allocate %zu bytes\n", __func__, | |
924 | sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE); | |
a1dfd851 | 925 | |
a1dfd851 AD |
926 | hpet_res->name = (void *)&hpet_res[1]; |
927 | hpet_res->flags = IORESOURCE_MEM; | |
928 | snprintf((char *)hpet_res->name, HPET_RESOURCE_NAME_SIZE, "HPET %u", | |
929 | hpet_tbl->sequence); | |
930 | ||
931 | hpet_res->start = hpet_address; | |
932 | hpet_res->end = hpet_address + (1 * 1024) - 1; | |
933 | ||
1da177e4 LT |
934 | return 0; |
935 | } | |
a1dfd851 AD |
936 | |
937 | /* | |
938 | * hpet_insert_resource inserts the HPET resources used into the resource | |
939 | * tree. | |
940 | */ | |
941 | static __init int hpet_insert_resource(void) | |
942 | { | |
943 | if (!hpet_res) | |
944 | return 1; | |
945 | ||
946 | return insert_resource(&iomem_resource, hpet_res); | |
947 | } | |
948 | ||
949 | late_initcall(hpet_insert_resource); | |
950 | ||
1da177e4 LT |
951 | #else |
952 | #define acpi_parse_hpet NULL | |
953 | #endif | |
954 | ||
5f3b1a8b | 955 | static int __init acpi_parse_fadt(struct acpi_table_header *table) |
1da177e4 | 956 | { |
7a17b82c LR |
957 | if (!(acpi_gbl_FADT.boot_flags & ACPI_FADT_LEGACY_DEVICES)) { |
958 | pr_debug("ACPI: no legacy devices present\n"); | |
959 | x86_platform.legacy.devices.pnpbios = 0; | |
960 | } | |
961 | ||
93ffa9a4 DT |
962 | if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID && |
963 | !(acpi_gbl_FADT.boot_flags & ACPI_FADT_8042) && | |
964 | x86_platform.legacy.i8042 != X86_LEGACY_I8042_PLATFORM_ABSENT) { | |
965 | pr_debug("ACPI: i8042 controller is absent\n"); | |
966 | x86_platform.legacy.i8042 = X86_LEGACY_I8042_FIRMWARE_ABSENT; | |
967 | } | |
968 | ||
088a8ef8 LR |
969 | if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_CMOS_RTC) { |
970 | pr_debug("ACPI: not registering RTC platform device\n"); | |
971 | x86_platform.legacy.rtc = 0; | |
972 | } | |
90660ec3 | 973 | |
6d730525 JG |
974 | if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_VGA) { |
975 | pr_debug("ACPI: probing for VGA not safe\n"); | |
976 | x86_platform.legacy.no_vga = 1; | |
977 | } | |
978 | ||
1da177e4 LT |
979 | #ifdef CONFIG_X86_PM_TIMER |
980 | /* detect the location of the ACPI PM Timer */ | |
5f3b1a8b | 981 | if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) { |
1da177e4 | 982 | /* FADT rev. 2 */ |
5f3b1a8b | 983 | if (acpi_gbl_FADT.xpm_timer_block.space_id != |
4be44fcd | 984 | ACPI_ADR_SPACE_SYSTEM_IO) |
1da177e4 LT |
985 | return 0; |
986 | ||
5f3b1a8b | 987 | pmtmr_ioport = acpi_gbl_FADT.xpm_timer_block.address; |
e6e87b4b DSL |
988 | /* |
989 | * "X" fields are optional extensions to the original V1.0 | |
990 | * fields, so we must selectively expand V1.0 fields if the | |
991 | * corresponding X field is zero. | |
992 | */ | |
993 | if (!pmtmr_ioport) | |
5f3b1a8b | 994 | pmtmr_ioport = acpi_gbl_FADT.pm_timer_block; |
1da177e4 LT |
995 | } else { |
996 | /* FADT rev. 1 */ | |
5f3b1a8b | 997 | pmtmr_ioport = acpi_gbl_FADT.pm_timer_block; |
1da177e4 LT |
998 | } |
999 | if (pmtmr_ioport) | |
4be44fcd LB |
1000 | printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n", |
1001 | pmtmr_ioport); | |
1da177e4 LT |
1002 | #endif |
1003 | return 0; | |
1004 | } | |
1005 | ||
1da177e4 LT |
1006 | #ifdef CONFIG_X86_LOCAL_APIC |
1007 | /* | |
1008 | * Parse LAPIC entries in MADT | |
1009 | * returns 0 on success, < 0 on error | |
1010 | */ | |
31d2092e | 1011 | |
cbf9bd60 YL |
1012 | static int __init early_acpi_parse_madt_lapic_addr_ovr(void) |
1013 | { | |
1014 | int count; | |
1015 | ||
93984fbd | 1016 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
cbf9bd60 YL |
1017 | return -ENODEV; |
1018 | ||
1019 | /* | |
1020 | * Note that the LAPIC address is obtained from the MADT (32-bit value) | |
6a6256f9 | 1021 | * and (optionally) overridden by a LAPIC_ADDR_OVR entry (64-bit value). |
cbf9bd60 YL |
1022 | */ |
1023 | ||
e819813f JL |
1024 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE, |
1025 | acpi_parse_lapic_addr_ovr, 0); | |
cbf9bd60 YL |
1026 | if (count < 0) { |
1027 | printk(KERN_ERR PREFIX | |
1028 | "Error parsing LAPIC address override entry\n"); | |
1029 | return count; | |
1030 | } | |
1031 | ||
c0104d38 | 1032 | register_lapic_address(acpi_lapic_addr); |
cbf9bd60 YL |
1033 | |
1034 | return count; | |
1035 | } | |
1036 | ||
4be44fcd | 1037 | static int __init acpi_parse_madt_lapic_entries(void) |
1da177e4 LT |
1038 | { |
1039 | int count; | |
7237d3de | 1040 | int x2count = 0; |
d81056b5 LA |
1041 | int ret; |
1042 | struct acpi_subtable_proc madt_proc[2]; | |
1da177e4 | 1043 | |
93984fbd | 1044 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
0fcd2709 AK |
1045 | return -ENODEV; |
1046 | ||
ac049c1d | 1047 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC, |
cb2ded37 | 1048 | acpi_parse_sapic, MAX_LOCAL_APIC); |
ac049c1d | 1049 | |
7237d3de | 1050 | if (!count) { |
d81056b5 LA |
1051 | memset(madt_proc, 0, sizeof(madt_proc)); |
1052 | madt_proc[0].id = ACPI_MADT_TYPE_LOCAL_APIC; | |
1053 | madt_proc[0].handler = acpi_parse_lapic; | |
1054 | madt_proc[1].id = ACPI_MADT_TYPE_LOCAL_X2APIC; | |
1055 | madt_proc[1].handler = acpi_parse_x2apic; | |
1056 | ret = acpi_table_parse_entries_array(ACPI_SIG_MADT, | |
1057 | sizeof(struct acpi_table_madt), | |
1058 | madt_proc, ARRAY_SIZE(madt_proc), MAX_LOCAL_APIC); | |
1059 | if (ret < 0) { | |
1060 | printk(KERN_ERR PREFIX | |
1061 | "Error parsing LAPIC/X2APIC entries\n"); | |
1062 | return ret; | |
1063 | } | |
1064 | ||
c12f29a5 AS |
1065 | count = madt_proc[0].count; |
1066 | x2count = madt_proc[1].count; | |
7237d3de SS |
1067 | } |
1068 | if (!count && !x2count) { | |
1da177e4 LT |
1069 | printk(KERN_ERR PREFIX "No LAPIC entries present\n"); |
1070 | /* TBD: Cleanup to allow fallback to MPS */ | |
1071 | return -ENODEV; | |
7237d3de | 1072 | } else if (count < 0 || x2count < 0) { |
1da177e4 LT |
1073 | printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n"); |
1074 | /* TBD: Cleanup to allow fallback to MPS */ | |
1075 | return count; | |
1076 | } | |
1077 | ||
e819813f JL |
1078 | x2count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_X2APIC_NMI, |
1079 | acpi_parse_x2apic_nmi, 0); | |
1080 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, | |
1081 | acpi_parse_lapic_nmi, 0); | |
7237d3de | 1082 | if (count < 0 || x2count < 0) { |
1da177e4 LT |
1083 | printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); |
1084 | /* TBD: Cleanup to allow fallback to MPS */ | |
1085 | return count; | |
1086 | } | |
1087 | return 0; | |
1088 | } | |
4be44fcd | 1089 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 1090 | |
8466361a | 1091 | #ifdef CONFIG_X86_IO_APIC |
a491cc90 | 1092 | static void __init mp_config_acpi_legacy_irqs(void) |
11113f84 | 1093 | { |
6df8809b | 1094 | int i; |
c2c21745 | 1095 | struct mpc_intsrc mp_irq; |
11113f84 | 1096 | |
bb8187d3 | 1097 | #ifdef CONFIG_EISA |
11113f84 AS |
1098 | /* |
1099 | * Fabricate the legacy ISA bus (bus #31). | |
1100 | */ | |
1101 | mp_bus_id_to_type[MP_ISA_BUS] = MP_BUS_ISA; | |
1102 | #endif | |
1103 | set_bit(MP_ISA_BUS, mp_bus_not_pci); | |
42d516ce | 1104 | pr_debug("Bus #%d is ISA (nIRQs: %d)\n", MP_ISA_BUS, nr_legacy_irqs()); |
11113f84 | 1105 | |
11113f84 AS |
1106 | /* |
1107 | * Use the default configuration for the IRQs 0-15. Unless | |
1108 | * overridden by (MADT) interrupt source override entries. | |
1109 | */ | |
95d76acc | 1110 | for (i = 0; i < nr_legacy_irqs(); i++) { |
0fd52670 EB |
1111 | int ioapic, pin; |
1112 | unsigned int dstapic; | |
11113f84 | 1113 | int idx; |
0fd52670 EB |
1114 | u32 gsi; |
1115 | ||
1116 | /* Locate the gsi that irq i maps to. */ | |
1117 | if (acpi_isa_irq_to_gsi(i, &gsi)) | |
1118 | continue; | |
1119 | ||
1120 | /* | |
1121 | * Locate the IOAPIC that manages the ISA IRQ. | |
1122 | */ | |
1123 | ioapic = mp_find_ioapic(gsi); | |
1124 | if (ioapic < 0) | |
1125 | continue; | |
1126 | pin = mp_find_ioapic_pin(ioapic, gsi); | |
d5371430 | 1127 | dstapic = mpc_ioapic_id(ioapic); |
11113f84 AS |
1128 | |
1129 | for (idx = 0; idx < mp_irq_entries; idx++) { | |
c2c21745 | 1130 | struct mpc_intsrc *irq = mp_irqs + idx; |
11113f84 AS |
1131 | |
1132 | /* Do we already have a mapping for this ISA IRQ? */ | |
c2c21745 | 1133 | if (irq->srcbus == MP_ISA_BUS && irq->srcbusirq == i) |
11113f84 AS |
1134 | break; |
1135 | ||
1136 | /* Do we already have a mapping for this IOAPIC pin */ | |
0fd52670 | 1137 | if (irq->dstapic == dstapic && irq->dstirq == pin) |
11113f84 AS |
1138 | break; |
1139 | } | |
1140 | ||
1141 | if (idx != mp_irq_entries) { | |
1142 | printk(KERN_DEBUG "ACPI: IRQ%d used by override.\n", i); | |
1143 | continue; /* IRQ already used */ | |
1144 | } | |
1145 | ||
c2c21745 JSR |
1146 | mp_irq.type = MP_INTSRC; |
1147 | mp_irq.irqflag = 0; /* Conforming */ | |
1148 | mp_irq.srcbus = MP_ISA_BUS; | |
1149 | mp_irq.dstapic = dstapic; | |
1150 | mp_irq.irqtype = mp_INT; | |
1151 | mp_irq.srcbusirq = i; /* Identity mapped */ | |
0fd52670 | 1152 | mp_irq.dstirq = pin; |
11113f84 | 1153 | |
2d8009ba | 1154 | mp_save_irq(&mp_irq); |
11113f84 AS |
1155 | } |
1156 | } | |
1157 | ||
1da177e4 LT |
1158 | /* |
1159 | * Parse IOAPIC related entries in MADT | |
1160 | * returns 0 on success, < 0 on error | |
1161 | */ | |
4be44fcd | 1162 | static int __init acpi_parse_madt_ioapic_entries(void) |
1da177e4 LT |
1163 | { |
1164 | int count; | |
1165 | ||
1166 | /* | |
1167 | * ACPI interpreter is required to complete interrupt setup, | |
1168 | * so if it is off, don't enumerate the io-apics with ACPI. | |
1169 | * If MPS is present, it will handle them, | |
1170 | * otherwise the system will stay in PIC mode | |
1171 | */ | |
6b2b171a | 1172 | if (acpi_disabled || acpi_noirq) |
1da177e4 | 1173 | return -ENODEV; |
1da177e4 | 1174 | |
93984fbd | 1175 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
d3b6a349 AK |
1176 | return -ENODEV; |
1177 | ||
1da177e4 | 1178 | /* |
4be44fcd | 1179 | * if "noapic" boot option, don't look for IO-APICs |
1da177e4 LT |
1180 | */ |
1181 | if (skip_ioapic_setup) { | |
1182 | printk(KERN_INFO PREFIX "Skipping IOAPIC probe " | |
4be44fcd | 1183 | "due to 'noapic' option.\n"); |
1da177e4 LT |
1184 | return -ENODEV; |
1185 | } | |
1186 | ||
e819813f JL |
1187 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_IO_APIC, acpi_parse_ioapic, |
1188 | MAX_IO_APICS); | |
1da177e4 LT |
1189 | if (!count) { |
1190 | printk(KERN_ERR PREFIX "No IOAPIC entries present\n"); | |
1191 | return -ENODEV; | |
4be44fcd | 1192 | } else if (count < 0) { |
1da177e4 LT |
1193 | printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n"); |
1194 | return count; | |
1195 | } | |
1196 | ||
e819813f JL |
1197 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_INTERRUPT_OVERRIDE, |
1198 | acpi_parse_int_src_ovr, nr_irqs); | |
1da177e4 | 1199 | if (count < 0) { |
4be44fcd LB |
1200 | printk(KERN_ERR PREFIX |
1201 | "Error parsing interrupt source overrides entry\n"); | |
1da177e4 LT |
1202 | /* TBD: Cleanup to allow fallback to MPS */ |
1203 | return count; | |
1204 | } | |
1205 | ||
1206 | /* | |
1207 | * If BIOS did not supply an INT_SRC_OVR for the SCI | |
1208 | * pretend we got one so we can set the SCI flags. | |
7c7bcfea | 1209 | * But ignore setting up SCI on hardware reduced platforms. |
1da177e4 | 1210 | */ |
7c7bcfea | 1211 | if (acpi_sci_override_gsi == INVALID_ACPI_IRQ && !acpi_gbl_reduced_hardware) |
9d2062b8 EB |
1212 | acpi_sci_ioapic_setup(acpi_gbl_FADT.sci_interrupt, 0, 0, |
1213 | acpi_gbl_FADT.sci_interrupt); | |
1da177e4 | 1214 | |
af901ca1 | 1215 | /* Fill in identity legacy mappings where no override */ |
1da177e4 LT |
1216 | mp_config_acpi_legacy_irqs(); |
1217 | ||
e819813f JL |
1218 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_NMI_SOURCE, |
1219 | acpi_parse_nmi_src, nr_irqs); | |
1da177e4 LT |
1220 | if (count < 0) { |
1221 | printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n"); | |
1222 | /* TBD: Cleanup to allow fallback to MPS */ | |
1223 | return count; | |
1224 | } | |
1225 | ||
1226 | return 0; | |
1227 | } | |
1228 | #else | |
1229 | static inline int acpi_parse_madt_ioapic_entries(void) | |
1230 | { | |
1231 | return -1; | |
1232 | } | |
8466361a | 1233 | #endif /* !CONFIG_X86_IO_APIC */ |
1da177e4 | 1234 | |
cbf9bd60 YL |
1235 | static void __init early_acpi_process_madt(void) |
1236 | { | |
1237 | #ifdef CONFIG_X86_LOCAL_APIC | |
1238 | int error; | |
1239 | ||
1240 | if (!acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) { | |
1241 | ||
1242 | /* | |
1243 | * Parse MADT LAPIC entries | |
1244 | */ | |
1245 | error = early_acpi_parse_madt_lapic_addr_ovr(); | |
1246 | if (!error) { | |
1247 | acpi_lapic = 1; | |
1248 | smp_found_config = 1; | |
1249 | } | |
1250 | if (error == -EINVAL) { | |
1251 | /* | |
1252 | * Dell Precision Workstation 410, 610 come here. | |
1253 | */ | |
1254 | printk(KERN_ERR PREFIX | |
1255 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1256 | disable_acpi(); | |
1257 | } | |
1258 | } | |
1259 | #endif | |
1260 | } | |
1261 | ||
4be44fcd | 1262 | static void __init acpi_process_madt(void) |
1da177e4 LT |
1263 | { |
1264 | #ifdef CONFIG_X86_LOCAL_APIC | |
7f8f97c3 | 1265 | int error; |
1da177e4 | 1266 | |
7f8f97c3 | 1267 | if (!acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) { |
1da177e4 LT |
1268 | |
1269 | /* | |
1270 | * Parse MADT LAPIC entries | |
1271 | */ | |
1272 | error = acpi_parse_madt_lapic_entries(); | |
1273 | if (!error) { | |
1274 | acpi_lapic = 1; | |
1275 | ||
1276 | /* | |
1277 | * Parse MADT IO-APIC entries | |
1278 | */ | |
5da2fd26 | 1279 | mutex_lock(&acpi_ioapic_lock); |
1da177e4 | 1280 | error = acpi_parse_madt_ioapic_entries(); |
5da2fd26 | 1281 | mutex_unlock(&acpi_ioapic_lock); |
1da177e4 | 1282 | if (!error) { |
2f065aef | 1283 | acpi_set_irq_model_ioapic(); |
1da177e4 LT |
1284 | |
1285 | smp_found_config = 1; | |
1da177e4 LT |
1286 | } |
1287 | } | |
1288 | if (error == -EINVAL) { | |
1289 | /* | |
1290 | * Dell Precision Workstation 410, 610 come here. | |
1291 | */ | |
4be44fcd LB |
1292 | printk(KERN_ERR PREFIX |
1293 | "Invalid BIOS MADT, disabling ACPI\n"); | |
1da177e4 LT |
1294 | disable_acpi(); |
1295 | } | |
7b37b5fd LB |
1296 | } else { |
1297 | /* | |
1298 | * ACPI found no MADT, and so ACPI wants UP PIC mode. | |
1299 | * In the event an MPS table was found, forget it. | |
1300 | * Boot with "acpi=off" to use MPS on such a system. | |
1301 | */ | |
1302 | if (smp_found_config) { | |
1303 | printk(KERN_WARNING PREFIX | |
1304 | "No APIC-table, disabling MPS\n"); | |
1305 | smp_found_config = 0; | |
1306 | } | |
1da177e4 | 1307 | } |
69b88afa YL |
1308 | |
1309 | /* | |
1310 | * ACPI supports both logical (e.g. Hyper-Threading) and physical | |
1311 | * processors, where MPS only supports physical. | |
1312 | */ | |
1313 | if (acpi_lapic && acpi_ioapic) | |
1314 | printk(KERN_INFO "Using ACPI (MADT) for SMP configuration " | |
1315 | "information\n"); | |
1316 | else if (acpi_lapic) | |
1317 | printk(KERN_INFO "Using ACPI for processor (LAPIC) " | |
1318 | "configuration information\n"); | |
1da177e4 LT |
1319 | #endif |
1320 | return; | |
1321 | } | |
1322 | ||
1855256c | 1323 | static int __init disable_acpi_irq(const struct dmi_system_id *d) |
aea00143 AP |
1324 | { |
1325 | if (!acpi_force) { | |
1326 | printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n", | |
1327 | d->ident); | |
1328 | acpi_noirq_set(); | |
1329 | } | |
1330 | return 0; | |
1331 | } | |
1332 | ||
1855256c | 1333 | static int __init disable_acpi_pci(const struct dmi_system_id *d) |
aea00143 AP |
1334 | { |
1335 | if (!acpi_force) { | |
1336 | printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n", | |
1337 | d->ident); | |
1338 | acpi_disable_pci(); | |
1339 | } | |
1340 | return 0; | |
1341 | } | |
aea00143 | 1342 | |
1855256c | 1343 | static int __init dmi_disable_acpi(const struct dmi_system_id *d) |
aea00143 AP |
1344 | { |
1345 | if (!acpi_force) { | |
4be44fcd | 1346 | printk(KERN_NOTICE "%s detected: acpi off\n", d->ident); |
aea00143 AP |
1347 | disable_acpi(); |
1348 | } else { | |
1349 | printk(KERN_NOTICE | |
1350 | "Warning: DMI blacklist says broken, but acpi forced\n"); | |
1351 | } | |
1352 | return 0; | |
1353 | } | |
1354 | ||
e2079c43 | 1355 | /* |
ae10ccdc | 1356 | * Force ignoring BIOS IRQ0 override |
e2079c43 RW |
1357 | */ |
1358 | static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d) | |
1359 | { | |
8d89adf4 | 1360 | if (!acpi_skip_timer_override) { |
ae10ccdc | 1361 | pr_notice("%s detected: Ignoring BIOS IRQ0 override\n", |
8d89adf4 IM |
1362 | d->ident); |
1363 | acpi_skip_timer_override = 1; | |
1364 | } | |
e2079c43 RW |
1365 | return 0; |
1366 | } | |
1367 | ||
7486341a LA |
1368 | /* |
1369 | * ACPI offers an alternative platform interface model that removes | |
1370 | * ACPI hardware requirements for platforms that do not implement | |
1371 | * the PC Architecture. | |
1372 | * | |
1373 | * We initialize the Hardware-reduced ACPI model here: | |
1374 | */ | |
50beba07 AS |
1375 | void __init acpi_generic_reduced_hw_init(void) |
1376 | { | |
1377 | /* | |
1378 | * Override x86_init functions and bypass legacy PIC in | |
1379 | * hardware reduced ACPI mode. | |
1380 | */ | |
1381 | x86_init.timers.timer_init = x86_init_noop; | |
1382 | x86_init.irqs.pre_vector_init = x86_init_noop; | |
1383 | legacy_pic = &null_legacy_pic; | |
1384 | } | |
1385 | ||
7486341a LA |
1386 | static void __init acpi_reduced_hw_init(void) |
1387 | { | |
50beba07 | 1388 | if (acpi_gbl_reduced_hardware) |
81b53e5f | 1389 | x86_init.acpi.reduced_hw_early_init(); |
7486341a LA |
1390 | } |
1391 | ||
aea00143 AP |
1392 | /* |
1393 | * If your system is blacklisted here, but you find that acpi=force | |
5b4c0b6f | 1394 | * works for you, please contact linux-acpi@vger.kernel.org |
aea00143 | 1395 | */ |
6faadbbb | 1396 | static const struct dmi_system_id acpi_dmi_table[] __initconst = { |
aea00143 AP |
1397 | /* |
1398 | * Boxes that need ACPI disabled | |
1399 | */ | |
1400 | { | |
4be44fcd LB |
1401 | .callback = dmi_disable_acpi, |
1402 | .ident = "IBM Thinkpad", | |
1403 | .matches = { | |
1404 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1405 | DMI_MATCH(DMI_BOARD_NAME, "2629H1G"), | |
1406 | }, | |
1407 | }, | |
aea00143 | 1408 | |
aea00143 AP |
1409 | /* |
1410 | * Boxes that need ACPI PCI IRQ routing disabled | |
1411 | */ | |
1412 | { | |
4be44fcd LB |
1413 | .callback = disable_acpi_irq, |
1414 | .ident = "ASUS A7V", | |
1415 | .matches = { | |
1416 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"), | |
1417 | DMI_MATCH(DMI_BOARD_NAME, "<A7V>"), | |
1418 | /* newer BIOS, Revision 1011, does work */ | |
1419 | DMI_MATCH(DMI_BIOS_VERSION, | |
1420 | "ASUS A7V ACPI BIOS Revision 1007"), | |
1421 | }, | |
1422 | }, | |
74586fca LB |
1423 | { |
1424 | /* | |
1425 | * Latest BIOS for IBM 600E (1.16) has bad pcinum | |
1426 | * for LPC bridge, which is needed for the PCI | |
1427 | * interrupt links to work. DSDT fix is in bug 5966. | |
1428 | * 2645, 2646 model numbers are shared with 600/600E/600X | |
1429 | */ | |
1430 | .callback = disable_acpi_irq, | |
1431 | .ident = "IBM Thinkpad 600 Series 2645", | |
1432 | .matches = { | |
1433 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1434 | DMI_MATCH(DMI_BOARD_NAME, "2645"), | |
1435 | }, | |
1436 | }, | |
1437 | { | |
1438 | .callback = disable_acpi_irq, | |
1439 | .ident = "IBM Thinkpad 600 Series 2646", | |
1440 | .matches = { | |
1441 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1442 | DMI_MATCH(DMI_BOARD_NAME, "2646"), | |
1443 | }, | |
1444 | }, | |
aea00143 AP |
1445 | /* |
1446 | * Boxes that need ACPI PCI IRQ routing and PCI scan disabled | |
1447 | */ | |
4be44fcd LB |
1448 | { /* _BBN 0 bug */ |
1449 | .callback = disable_acpi_pci, | |
1450 | .ident = "ASUS PR-DLS", | |
1451 | .matches = { | |
1452 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1453 | DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"), | |
1454 | DMI_MATCH(DMI_BIOS_VERSION, | |
1455 | "ASUS PR-DLS ACPI BIOS Revision 1010"), | |
1456 | DMI_MATCH(DMI_BIOS_DATE, "03/21/2003") | |
1457 | }, | |
1458 | }, | |
aea00143 | 1459 | { |
4be44fcd LB |
1460 | .callback = disable_acpi_pci, |
1461 | .ident = "Acer TravelMate 36x Laptop", | |
1462 | .matches = { | |
1463 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
1464 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), | |
1465 | }, | |
1466 | }, | |
35af2821 AH |
1467 | {} |
1468 | }; | |
1469 | ||
1470 | /* second table for DMI checks that should run after early-quirks */ | |
6faadbbb | 1471 | static const struct dmi_system_id acpi_dmi_table_late[] __initconst = { |
e2079c43 RW |
1472 | /* |
1473 | * HP laptops which use a DSDT reporting as HP/SB400/10000, | |
1474 | * which includes some code which overrides all temperature | |
1475 | * trip points to 16C if the INTIN2 input of the I/O APIC | |
1476 | * is enabled. This input is incorrectly designated the | |
1477 | * ISA IRQ 0 via an interrupt source override even though | |
1478 | * it is wired to the output of the master 8259A and INTIN0 | |
ae10ccdc | 1479 | * is not connected at all. Force ignoring BIOS IRQ0 |
e2079c43 RW |
1480 | * override in that cases. |
1481 | */ | |
e84956f9 RW |
1482 | { |
1483 | .callback = dmi_ignore_irq0_timer_override, | |
1484 | .ident = "HP nx6115 laptop", | |
1485 | .matches = { | |
1486 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1487 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6115"), | |
1488 | }, | |
1489 | }, | |
e2079c43 RW |
1490 | { |
1491 | .callback = dmi_ignore_irq0_timer_override, | |
1492 | .ident = "HP NX6125 laptop", | |
1493 | .matches = { | |
1494 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1495 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6125"), | |
1496 | }, | |
1497 | }, | |
1498 | { | |
1499 | .callback = dmi_ignore_irq0_timer_override, | |
1500 | .ident = "HP NX6325 laptop", | |
1501 | .matches = { | |
1502 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1503 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6325"), | |
1504 | }, | |
1505 | }, | |
e84956f9 RW |
1506 | { |
1507 | .callback = dmi_ignore_irq0_timer_override, | |
1508 | .ident = "HP 6715b laptop", | |
1509 | .matches = { | |
1510 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1511 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"), | |
1512 | }, | |
1513 | }, | |
f6b54f08 FT |
1514 | { |
1515 | .callback = dmi_ignore_irq0_timer_override, | |
1516 | .ident = "FUJITSU SIEMENS", | |
1517 | .matches = { | |
1518 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), | |
1519 | DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"), | |
1520 | }, | |
1521 | }, | |
4be44fcd | 1522 | {} |
aea00143 AP |
1523 | }; |
1524 | ||
1da177e4 LT |
1525 | /* |
1526 | * acpi_boot_table_init() and acpi_boot_init() | |
1527 | * called from setup_arch(), always. | |
1528 | * 1. checksums all tables | |
1529 | * 2. enumerates lapics | |
1530 | * 3. enumerates io-apics | |
1531 | * | |
1532 | * acpi_table_init() is separate to allow reading SRAT without | |
1533 | * other side effects. | |
1534 | * | |
1535 | * side effects of acpi_boot_init: | |
1536 | * acpi_lapic = 1 if LAPIC found | |
1537 | * acpi_ioapic = 1 if IOAPIC found | |
1538 | * if (acpi_lapic && acpi_ioapic) smp_found_config = 1; | |
1539 | * if acpi_blacklisted() acpi_disabled = 1; | |
1540 | * acpi_irq_model=... | |
1541 | * ... | |
1da177e4 LT |
1542 | */ |
1543 | ||
8558e394 | 1544 | void __init acpi_boot_table_init(void) |
1da177e4 | 1545 | { |
aea00143 | 1546 | dmi_check_system(acpi_dmi_table); |
aea00143 | 1547 | |
1da177e4 LT |
1548 | /* |
1549 | * If acpi_disabled, bail out | |
1da177e4 | 1550 | */ |
68ca4069 | 1551 | if (acpi_disabled) |
0f61aaa4 | 1552 | return; |
1da177e4 | 1553 | |
5f3b1a8b | 1554 | /* |
1da177e4 LT |
1555 | * Initialize the ACPI boot-time table parser. |
1556 | */ | |
8558e394 | 1557 | if (acpi_table_init()) { |
1da177e4 | 1558 | disable_acpi(); |
8558e394 | 1559 | return; |
1da177e4 | 1560 | } |
1da177e4 | 1561 | |
5f3b1a8b | 1562 | acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf); |
1da177e4 LT |
1563 | |
1564 | /* | |
1565 | * blacklist may disable ACPI entirely | |
1566 | */ | |
8558e394 | 1567 | if (acpi_blacklisted()) { |
1da177e4 LT |
1568 | if (acpi_force) { |
1569 | printk(KERN_WARNING PREFIX "acpi=force override\n"); | |
1570 | } else { | |
1571 | printk(KERN_WARNING PREFIX "Disabling ACPI support\n"); | |
1572 | disable_acpi(); | |
8558e394 | 1573 | return; |
1da177e4 LT |
1574 | } |
1575 | } | |
cbf9bd60 YL |
1576 | } |
1577 | ||
1578 | int __init early_acpi_boot_init(void) | |
1579 | { | |
1580 | /* | |
1581 | * If acpi_disabled, bail out | |
cbf9bd60 | 1582 | */ |
68ca4069 | 1583 | if (acpi_disabled) |
cbf9bd60 YL |
1584 | return 1; |
1585 | ||
1586 | /* | |
1587 | * Process the Multiple APIC Description Table (MADT), if present | |
1588 | */ | |
1589 | early_acpi_process_madt(); | |
1da177e4 | 1590 | |
7486341a LA |
1591 | /* |
1592 | * Hardware-reduced ACPI mode initialization: | |
1593 | */ | |
1594 | acpi_reduced_hw_init(); | |
1595 | ||
1da177e4 LT |
1596 | return 0; |
1597 | } | |
1598 | ||
1da177e4 LT |
1599 | int __init acpi_boot_init(void) |
1600 | { | |
35af2821 AH |
1601 | /* those are executed after early-quirks are executed */ |
1602 | dmi_check_system(acpi_dmi_table_late); | |
1603 | ||
1da177e4 LT |
1604 | /* |
1605 | * If acpi_disabled, bail out | |
1da177e4 | 1606 | */ |
68ca4069 | 1607 | if (acpi_disabled) |
4be44fcd | 1608 | return 1; |
1da177e4 | 1609 | |
5f3b1a8b | 1610 | acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf); |
1da177e4 LT |
1611 | |
1612 | /* | |
1613 | * set sci_int and PM timer address | |
1614 | */ | |
ceb6c468 | 1615 | acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt); |
1da177e4 LT |
1616 | |
1617 | /* | |
1618 | * Process the Multiple APIC Description Table (MADT), if present | |
1619 | */ | |
1620 | acpi_process_madt(); | |
1621 | ||
5f3b1a8b | 1622 | acpi_table_parse(ACPI_SIG_HPET, acpi_parse_hpet); |
1ffb8d03 | 1623 | if (IS_ENABLED(CONFIG_ACPI_BGRT) && !acpi_nobgrt) |
7b0a9114 | 1624 | acpi_table_parse(ACPI_SIG_BGRT, acpi_parse_bgrt); |
1da177e4 | 1625 | |
b72d0db9 TG |
1626 | if (!acpi_noirq) |
1627 | x86_init.pci.init = pci_acpi_init; | |
1628 | ||
0231d000 PB |
1629 | /* Do not enable ACPI SPCR console by default */ |
1630 | acpi_parse_spcr(earlycon_acpi_spcr_enable, false); | |
1da177e4 LT |
1631 | return 0; |
1632 | } | |
1a3f239d RR |
1633 | |
1634 | static int __init parse_acpi(char *arg) | |
1635 | { | |
1636 | if (!arg) | |
1637 | return -EINVAL; | |
1638 | ||
1639 | /* "acpi=off" disables both ACPI table parsing and interpreter */ | |
1640 | if (strcmp(arg, "off") == 0) { | |
1641 | disable_acpi(); | |
1642 | } | |
1643 | /* acpi=force to over-ride black-list */ | |
1644 | else if (strcmp(arg, "force") == 0) { | |
1645 | acpi_force = 1; | |
1a3f239d RR |
1646 | acpi_disabled = 0; |
1647 | } | |
1648 | /* acpi=strict disables out-of-spec workarounds */ | |
1649 | else if (strcmp(arg, "strict") == 0) { | |
1650 | acpi_strict = 1; | |
1651 | } | |
237889bf ZY |
1652 | /* acpi=rsdt use RSDT instead of XSDT */ |
1653 | else if (strcmp(arg, "rsdt") == 0) { | |
fab46105 | 1654 | acpi_gbl_do_not_use_xsdt = TRUE; |
237889bf | 1655 | } |
1a3f239d RR |
1656 | /* "acpi=noirq" disables ACPI interrupt routing */ |
1657 | else if (strcmp(arg, "noirq") == 0) { | |
1658 | acpi_noirq_set(); | |
aa2110cb LM |
1659 | } |
1660 | /* "acpi=copy_dsdt" copys DSDT */ | |
1661 | else if (strcmp(arg, "copy_dsdt") == 0) { | |
1662 | acpi_gbl_copy_dsdt_locally = 1; | |
9ad95879 NR |
1663 | } |
1664 | /* "acpi=nocmcff" disables FF mode for corrected errors */ | |
1665 | else if (strcmp(arg, "nocmcff") == 0) { | |
1666 | acpi_disable_cmcff = 1; | |
1a3f239d RR |
1667 | } else { |
1668 | /* Core will printk when we return error. */ | |
1669 | return -EINVAL; | |
1670 | } | |
1671 | return 0; | |
1672 | } | |
1673 | early_param("acpi", parse_acpi); | |
1674 | ||
1ffb8d03 AH |
1675 | static int __init parse_acpi_bgrt(char *arg) |
1676 | { | |
1677 | acpi_nobgrt = true; | |
1678 | return 0; | |
1679 | } | |
1680 | early_param("bgrt_disable", parse_acpi_bgrt); | |
1681 | ||
1a3f239d RR |
1682 | /* FIXME: Using pci= for an ACPI parameter is a travesty. */ |
1683 | static int __init parse_pci(char *arg) | |
1684 | { | |
1685 | if (arg && strcmp(arg, "noacpi") == 0) | |
1686 | acpi_disable_pci(); | |
1687 | return 0; | |
1688 | } | |
1689 | early_param("pci", parse_pci); | |
1690 | ||
3c999f14 YL |
1691 | int __init acpi_mps_check(void) |
1692 | { | |
1693 | #if defined(CONFIG_X86_LOCAL_APIC) && !defined(CONFIG_X86_MPPARSE) | |
1694 | /* mptable code is not built-in*/ | |
1695 | if (acpi_disabled || acpi_noirq) { | |
1696 | printk(KERN_WARNING "MPS support code is not built-in.\n" | |
1697 | "Using acpi=off or acpi=noirq or pci=noacpi " | |
1698 | "may have problem\n"); | |
1699 | return 1; | |
1700 | } | |
1701 | #endif | |
1702 | return 0; | |
1703 | } | |
1704 | ||
1a3f239d RR |
1705 | #ifdef CONFIG_X86_IO_APIC |
1706 | static int __init parse_acpi_skip_timer_override(char *arg) | |
1707 | { | |
1708 | acpi_skip_timer_override = 1; | |
1709 | return 0; | |
1710 | } | |
1711 | early_param("acpi_skip_timer_override", parse_acpi_skip_timer_override); | |
fa18f477 AK |
1712 | |
1713 | static int __init parse_acpi_use_timer_override(char *arg) | |
1714 | { | |
1715 | acpi_use_timer_override = 1; | |
1716 | return 0; | |
1717 | } | |
1718 | early_param("acpi_use_timer_override", parse_acpi_use_timer_override); | |
1a3f239d RR |
1719 | #endif /* CONFIG_X86_IO_APIC */ |
1720 | ||
1721 | static int __init setup_acpi_sci(char *s) | |
1722 | { | |
1723 | if (!s) | |
1724 | return -EINVAL; | |
1725 | if (!strcmp(s, "edge")) | |
5f3b1a8b AS |
1726 | acpi_sci_flags = ACPI_MADT_TRIGGER_EDGE | |
1727 | (acpi_sci_flags & ~ACPI_MADT_TRIGGER_MASK); | |
1a3f239d | 1728 | else if (!strcmp(s, "level")) |
5f3b1a8b AS |
1729 | acpi_sci_flags = ACPI_MADT_TRIGGER_LEVEL | |
1730 | (acpi_sci_flags & ~ACPI_MADT_TRIGGER_MASK); | |
1a3f239d | 1731 | else if (!strcmp(s, "high")) |
5f3b1a8b AS |
1732 | acpi_sci_flags = ACPI_MADT_POLARITY_ACTIVE_HIGH | |
1733 | (acpi_sci_flags & ~ACPI_MADT_POLARITY_MASK); | |
1a3f239d | 1734 | else if (!strcmp(s, "low")) |
5f3b1a8b AS |
1735 | acpi_sci_flags = ACPI_MADT_POLARITY_ACTIVE_LOW | |
1736 | (acpi_sci_flags & ~ACPI_MADT_POLARITY_MASK); | |
1a3f239d RR |
1737 | else |
1738 | return -EINVAL; | |
1739 | return 0; | |
1740 | } | |
1741 | early_param("acpi_sci", setup_acpi_sci); | |
d0a9081b AM |
1742 | |
1743 | int __acpi_acquire_global_lock(unsigned int *lock) | |
1744 | { | |
1745 | unsigned int old, new, val; | |
1746 | do { | |
1747 | old = *lock; | |
1748 | new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1)); | |
1749 | val = cmpxchg(lock, old, new); | |
1750 | } while (unlikely (val != old)); | |
ecb9c790 | 1751 | return ((new & 0x3) < 3) ? -1 : 0; |
d0a9081b AM |
1752 | } |
1753 | ||
1754 | int __acpi_release_global_lock(unsigned int *lock) | |
1755 | { | |
1756 | unsigned int old, new, val; | |
1757 | do { | |
1758 | old = *lock; | |
1759 | new = old & ~0x3; | |
1760 | val = cmpxchg(lock, old, new); | |
1761 | } while (unlikely (val != old)); | |
1762 | return old & 0x1; | |
1763 | } | |
8e30524d TR |
1764 | |
1765 | void __init arch_reserve_mem_area(acpi_physical_address addr, size_t size) | |
1766 | { | |
09821ff1 | 1767 | e820__range_add(addr, size, E820_TYPE_ACPI); |
6464d294 | 1768 | e820__update_table_print(); |
8e30524d | 1769 | } |
e7b66d16 | 1770 | |
41fa1ee9 JB |
1771 | void x86_default_set_root_pointer(u64 addr) |
1772 | { | |
1773 | boot_params.acpi_rsdp_addr = addr; | |
1774 | } | |
1775 | ||
e7b66d16 JG |
1776 | u64 x86_default_get_root_pointer(void) |
1777 | { | |
e6e094e0 | 1778 | return boot_params.acpi_rsdp_addr; |
e7b66d16 | 1779 | } |