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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 | 7 | */ |
14fad24d | 8 | #define pr_fmt(fmt) "ACPI: " fmt |
1da177e4 LT |
9 | |
10 | #include <linux/init.h> | |
1da177e4 | 11 | #include <linux/acpi.h> |
d66bea57 | 12 | #include <linux/acpi_pmtmr.h> |
1da177e4 | 13 | #include <linux/efi.h> |
73fea175 | 14 | #include <linux/cpumask.h> |
186f4360 | 15 | #include <linux/export.h> |
aea00143 | 16 | #include <linux/dmi.h> |
b33fa1f3 | 17 | #include <linux/irq.h> |
5a0e3ad6 | 18 | #include <linux/slab.h> |
57c8a661 | 19 | #include <linux/memblock.h> |
f0f4c343 | 20 | #include <linux/ioport.h> |
a31f8205 | 21 | #include <linux/pci.h> |
7b0a9114 | 22 | #include <linux/efi-bgrt.h> |
0231d000 | 23 | #include <linux/serial_core.h> |
65fddcfc | 24 | #include <linux/pgtable.h> |
1da177e4 | 25 | |
5520b7e7 | 26 | #include <asm/e820/api.h> |
f7a0c786 | 27 | #include <asm/irqdomain.h> |
b72d0db9 | 28 | #include <asm/pci_x86.h> |
1da177e4 LT |
29 | #include <asm/io_apic.h> |
30 | #include <asm/apic.h> | |
31 | #include <asm/io.h> | |
1da177e4 | 32 | #include <asm/mpspec.h> |
dfac2189 | 33 | #include <asm/smp.h> |
95d76acc | 34 | #include <asm/i8259.h> |
e7b66d16 | 35 | #include <asm/setup.h> |
1da177e4 | 36 | |
d6a77ead | 37 | #include "sleep.h" /* To include x86_acpi_suspend_lowlevel */ |
e8924acb | 38 | static int __initdata acpi_force = 0; |
c636f753 | 39 | int acpi_disabled; |
df3bb57d AK |
40 | EXPORT_SYMBOL(acpi_disabled); |
41 | ||
1da177e4 | 42 | #ifdef CONFIG_X86_64 |
1dcdd3d1 | 43 | # include <asm/proto.h> |
4be44fcd | 44 | #endif /* X86 */ |
1da177e4 | 45 | |
90d53909 | 46 | int acpi_noirq; /* skip ACPI IRQ initialization */ |
b5432a69 | 47 | static int acpi_nobgrt; /* skip ACPI BGRT */ |
6e4be1ff YL |
48 | int acpi_pci_disabled; /* skip ACPI PCI scan and IRQ initialization */ |
49 | EXPORT_SYMBOL(acpi_pci_disabled); | |
1da177e4 LT |
50 | |
51 | int acpi_lapic; | |
52 | int acpi_ioapic; | |
53 | int acpi_strict; | |
9ad95879 | 54 | int acpi_disable_cmcff; |
1da177e4 | 55 | |
4565c4f6 | 56 | /* ACPI SCI override configuration */ |
5f3b1a8b | 57 | u8 acpi_sci_flags __initdata; |
4565c4f6 | 58 | u32 acpi_sci_override_gsi __initdata = INVALID_ACPI_IRQ; |
1da177e4 | 59 | int acpi_skip_timer_override __initdata; |
fa18f477 | 60 | int acpi_use_timer_override __initdata; |
7f74f8f2 | 61 | int acpi_fix_pin2_polarity __initdata; |
1da177e4 LT |
62 | |
63 | #ifdef CONFIG_X86_LOCAL_APIC | |
64 | static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; | |
65 | #endif | |
66 | ||
d2d9c4a3 | 67 | #ifdef CONFIG_X86_IO_APIC |
5da2fd26 JL |
68 | /* |
69 | * Locks related to IOAPIC hotplug | |
70 | * Hotplug side: | |
71 | * ->device_hotplug_lock | |
72 | * ->acpi_ioapic_lock | |
73 | * ->ioapic_lock | |
74 | * Interrupt mapping side: | |
75 | * ->acpi_ioapic_lock | |
76 | * ->ioapic_mutex | |
77 | * ->ioapic_lock | |
78 | */ | |
79 | static DEFINE_MUTEX(acpi_ioapic_lock); | |
d2d9c4a3 | 80 | #endif |
5da2fd26 | 81 | |
1da177e4 LT |
82 | /* -------------------------------------------------------------------------- |
83 | Boot-time Configuration | |
84 | -------------------------------------------------------------------------- */ | |
85 | ||
86 | /* | |
87 | * The default interrupt routing model is PIC (8259). This gets | |
27b46d76 | 88 | * overridden if IOAPICs are enumerated (below). |
1da177e4 | 89 | */ |
4be44fcd | 90 | enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC; |
1da177e4 | 91 | |
1da177e4 | 92 | |
988856ee EB |
93 | /* |
94 | * ISA irqs by default are the first 16 gsis but can be | |
95 | * any gsi as specified by an interrupt source override. | |
96 | */ | |
97 | static u32 isa_irq_to_gsi[NR_IRQS_LEGACY] __read_mostly = { | |
98 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 | |
99 | }; | |
100 | ||
1da177e4 | 101 | /* |
f7750a79 | 102 | * This is just a simple wrapper around early_memremap(), |
45f1330a | 103 | * with sanity checks for phys == 0 and size == 0. |
1da177e4 | 104 | */ |
6c9a58e8 | 105 | void __init __iomem *__acpi_map_table(unsigned long phys, unsigned long size) |
1da177e4 | 106 | { |
1da177e4 | 107 | |
f34fa82b YL |
108 | if (!phys || !size) |
109 | return NULL; | |
110 | ||
f7750a79 | 111 | return early_memremap(phys, size); |
7d97277b | 112 | } |
45f1330a | 113 | |
6c9a58e8 | 114 | void __init __acpi_unmap_table(void __iomem *map, unsigned long size) |
7d97277b YL |
115 | { |
116 | if (!map || !size) | |
117 | return; | |
1da177e4 | 118 | |
f7750a79 | 119 | early_memunmap(map, size); |
1da177e4 | 120 | } |
1da177e4 | 121 | |
1da177e4 | 122 | #ifdef CONFIG_X86_LOCAL_APIC |
15a58ed1 | 123 | static int __init acpi_parse_madt(struct acpi_table_header *table) |
1da177e4 | 124 | { |
4be44fcd | 125 | struct acpi_table_madt *madt = NULL; |
1da177e4 | 126 | |
93984fbd | 127 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
1da177e4 LT |
128 | return -EINVAL; |
129 | ||
15a58ed1 | 130 | madt = (struct acpi_table_madt *)table; |
1da177e4 | 131 | if (!madt) { |
14fad24d | 132 | pr_warn("Unable to map MADT\n"); |
1da177e4 LT |
133 | return -ENODEV; |
134 | } | |
135 | ||
ad363f80 AS |
136 | if (madt->address) { |
137 | acpi_lapic_addr = (u64) madt->address; | |
1da177e4 | 138 | |
14fad24d | 139 | pr_debug("Local APIC address 0x%08x\n", madt->address); |
1da177e4 LT |
140 | } |
141 | ||
306db03b IM |
142 | default_acpi_madt_oem_check(madt->header.oem_id, |
143 | madt->header.oem_table_id); | |
4be44fcd | 144 | |
1da177e4 LT |
145 | return 0; |
146 | } | |
147 | ||
7e1f85f9 JL |
148 | /** |
149 | * acpi_register_lapic - register a local apic and generates a logic cpu number | |
150 | * @id: local apic id to register | |
3e9e57fa | 151 | * @acpiid: ACPI id to register |
7e1f85f9 JL |
152 | * @enabled: this cpu is enabled or not |
153 | * | |
154 | * Returns the logic cpu number which maps to the local apic | |
155 | */ | |
3e9e57fa | 156 | static int acpi_register_lapic(int id, u32 acpiid, u8 enabled) |
dfac2189 | 157 | { |
fb3bbd6a | 158 | unsigned int ver = 0; |
3e9e57fa | 159 | int cpu; |
fb3bbd6a | 160 | |
82982d72 | 161 | if (id >= MAX_LOCAL_APIC) { |
14fad24d | 162 | pr_info("skipped apicid that is too big\n"); |
7e1f85f9 | 163 | return -EINVAL; |
d3bd0588 YL |
164 | } |
165 | ||
2b85b3d2 DL |
166 | if (!enabled) { |
167 | ++disabled_cpus; | |
168 | return -EINVAL; | |
169 | } | |
170 | ||
fb3bbd6a | 171 | if (boot_cpu_physical_apicid != -1U) |
cff9ab2b | 172 | ver = boot_cpu_apic_version; |
fb3bbd6a | 173 | |
2b85b3d2 | 174 | cpu = generic_processor_info(id, ver); |
3e9e57fa VK |
175 | if (cpu >= 0) |
176 | early_per_cpu(x86_cpu_to_acpiid, cpu) = acpiid; | |
177 | ||
178 | return cpu; | |
dfac2189 AS |
179 | } |
180 | ||
7237d3de | 181 | static int __init |
60574d1e | 182 | acpi_parse_x2apic(union acpi_subtable_headers *header, const unsigned long end) |
7237d3de SS |
183 | { |
184 | struct acpi_madt_local_x2apic *processor = NULL; | |
861a6ee8 | 185 | #ifdef CONFIG_X86_X2APIC |
a774635d | 186 | u32 apic_id; |
a35fd282 | 187 | u8 enabled; |
861a6ee8 | 188 | #endif |
7237d3de SS |
189 | |
190 | processor = (struct acpi_madt_local_x2apic *)header; | |
191 | ||
192 | if (BAD_MADT_ENTRY(processor, end)) | |
193 | return -EINVAL; | |
194 | ||
60574d1e | 195 | acpi_table_print_madt_entry(&header->common); |
7237d3de | 196 | |
861a6ee8 | 197 | #ifdef CONFIG_X86_X2APIC |
a35fd282 YL |
198 | apic_id = processor->local_apic_id; |
199 | enabled = processor->lapic_flags & ACPI_MADT_ENABLED; | |
861a6ee8 | 200 | |
10daf10a DL |
201 | /* Ignore invalid ID */ |
202 | if (apic_id == 0xffffffff) | |
203 | return 0; | |
204 | ||
7237d3de SS |
205 | /* |
206 | * We need to register disabled CPU as well to permit | |
207 | * counting disabled CPUs. This allows us to size | |
208 | * cpus_possible_map more accurately, to permit | |
209 | * to not preallocating memory for all NR_CPUS | |
210 | * when we use CPU hotplug. | |
211 | */ | |
a774635d LR |
212 | if (!apic->apic_id_valid(apic_id)) { |
213 | if (enabled) | |
14fad24d | 214 | pr_warn("x2apic entry ignored\n"); |
a774635d LR |
215 | return 0; |
216 | } | |
217 | ||
218 | acpi_register_lapic(apic_id, processor->uid, enabled); | |
7237d3de | 219 | #else |
14fad24d | 220 | pr_warn("x2apic entry ignored\n"); |
7237d3de SS |
221 | #endif |
222 | ||
223 | return 0; | |
224 | } | |
225 | ||
1da177e4 | 226 | static int __init |
60574d1e | 227 | acpi_parse_lapic(union acpi_subtable_headers * header, const unsigned long end) |
1da177e4 | 228 | { |
5f3b1a8b | 229 | struct acpi_madt_local_apic *processor = NULL; |
1da177e4 | 230 | |
5f3b1a8b | 231 | processor = (struct acpi_madt_local_apic *)header; |
1da177e4 LT |
232 | |
233 | if (BAD_MADT_ENTRY(processor, end)) | |
234 | return -EINVAL; | |
235 | ||
60574d1e | 236 | acpi_table_print_madt_entry(&header->common); |
1da177e4 | 237 | |
f3bf1dbe TG |
238 | /* Ignore invalid ID */ |
239 | if (processor->id == 0xff) | |
240 | return 0; | |
241 | ||
7f66ae48 AR |
242 | /* |
243 | * We need to register disabled CPU as well to permit | |
244 | * counting disabled CPUs. This allows us to size | |
245 | * cpus_possible_map more accurately, to permit | |
246 | * to not preallocating memory for all NR_CPUS | |
247 | * when we use CPU hotplug. | |
248 | */ | |
dfac2189 | 249 | acpi_register_lapic(processor->id, /* APIC ID */ |
3e9e57fa | 250 | processor->processor_id, /* ACPI ID */ |
dfac2189 | 251 | processor->lapic_flags & ACPI_MADT_ENABLED); |
1da177e4 LT |
252 | |
253 | return 0; | |
254 | } | |
255 | ||
ac049c1d | 256 | static int __init |
60574d1e | 257 | acpi_parse_sapic(union acpi_subtable_headers *header, const unsigned long end) |
ac049c1d JS |
258 | { |
259 | struct acpi_madt_local_sapic *processor = NULL; | |
260 | ||
261 | processor = (struct acpi_madt_local_sapic *)header; | |
262 | ||
263 | if (BAD_MADT_ENTRY(processor, end)) | |
264 | return -EINVAL; | |
265 | ||
60574d1e | 266 | acpi_table_print_madt_entry(&header->common); |
ac049c1d | 267 | |
dfac2189 | 268 | acpi_register_lapic((processor->id << 8) | processor->eid,/* APIC ID */ |
3e9e57fa | 269 | processor->processor_id, /* ACPI ID */ |
dfac2189 | 270 | processor->lapic_flags & ACPI_MADT_ENABLED); |
ac049c1d JS |
271 | |
272 | return 0; | |
273 | } | |
274 | ||
1da177e4 | 275 | static int __init |
60574d1e | 276 | acpi_parse_lapic_addr_ovr(union acpi_subtable_headers * header, |
4be44fcd | 277 | const unsigned long end) |
1da177e4 | 278 | { |
5f3b1a8b | 279 | struct acpi_madt_local_apic_override *lapic_addr_ovr = NULL; |
1da177e4 | 280 | |
5f3b1a8b | 281 | lapic_addr_ovr = (struct acpi_madt_local_apic_override *)header; |
1da177e4 LT |
282 | |
283 | if (BAD_MADT_ENTRY(lapic_addr_ovr, end)) | |
284 | return -EINVAL; | |
285 | ||
60574d1e | 286 | acpi_table_print_madt_entry(&header->common); |
6de42119 | 287 | |
1da177e4 LT |
288 | acpi_lapic_addr = lapic_addr_ovr->address; |
289 | ||
290 | return 0; | |
291 | } | |
292 | ||
7237d3de | 293 | static int __init |
60574d1e | 294 | acpi_parse_x2apic_nmi(union acpi_subtable_headers *header, |
7237d3de SS |
295 | const unsigned long end) |
296 | { | |
297 | struct acpi_madt_local_x2apic_nmi *x2apic_nmi = NULL; | |
298 | ||
299 | x2apic_nmi = (struct acpi_madt_local_x2apic_nmi *)header; | |
300 | ||
301 | if (BAD_MADT_ENTRY(x2apic_nmi, end)) | |
302 | return -EINVAL; | |
303 | ||
60574d1e | 304 | acpi_table_print_madt_entry(&header->common); |
7237d3de SS |
305 | |
306 | if (x2apic_nmi->lint != 1) | |
14fad24d | 307 | pr_warn("NMI not connected to LINT 1!\n"); |
7237d3de SS |
308 | |
309 | return 0; | |
310 | } | |
311 | ||
1da177e4 | 312 | static int __init |
60574d1e | 313 | acpi_parse_lapic_nmi(union acpi_subtable_headers * header, const unsigned long end) |
1da177e4 | 314 | { |
5f3b1a8b | 315 | struct acpi_madt_local_apic_nmi *lapic_nmi = NULL; |
1da177e4 | 316 | |
5f3b1a8b | 317 | lapic_nmi = (struct acpi_madt_local_apic_nmi *)header; |
1da177e4 LT |
318 | |
319 | if (BAD_MADT_ENTRY(lapic_nmi, end)) | |
320 | return -EINVAL; | |
321 | ||
60574d1e | 322 | acpi_table_print_madt_entry(&header->common); |
1da177e4 LT |
323 | |
324 | if (lapic_nmi->lint != 1) | |
14fad24d | 325 | pr_warn("NMI not connected to LINT 1!\n"); |
1da177e4 LT |
326 | |
327 | return 0; | |
328 | } | |
329 | ||
4be44fcd | 330 | #endif /*CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 331 | |
8466361a | 332 | #ifdef CONFIG_X86_IO_APIC |
8d7cdcb9 JL |
333 | #define MP_ISA_BUS 0 |
334 | ||
4ee2ec1b VS |
335 | static int __init mp_register_ioapic_irq(u8 bus_irq, u8 polarity, |
336 | u8 trigger, u32 gsi); | |
337 | ||
8d7cdcb9 JL |
338 | static void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, |
339 | u32 gsi) | |
340 | { | |
dad5ab0d SH |
341 | /* |
342 | * Check bus_irq boundary. | |
343 | */ | |
344 | if (bus_irq >= NR_IRQS_LEGACY) { | |
345 | pr_warn("Invalid bus_irq %u for legacy override\n", bus_irq); | |
346 | return; | |
347 | } | |
348 | ||
8d7cdcb9 JL |
349 | /* |
350 | * TBD: This check is for faulty timer entries, where the override | |
351 | * erroneously sets the trigger to level, resulting in a HUGE | |
352 | * increase of timer interrupts! | |
353 | */ | |
354 | if ((bus_irq == 0) && (trigger == 3)) | |
355 | trigger = 1; | |
356 | ||
4ee2ec1b VS |
357 | if (mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi) < 0) |
358 | return; | |
2e0ad0e2 JL |
359 | /* |
360 | * Reset default identity mapping if gsi is also an legacy IRQ, | |
361 | * otherwise there will be more than one entry with the same GSI | |
362 | * and acpi_isa_irq_to_gsi() may give wrong result. | |
363 | */ | |
95d76acc | 364 | if (gsi < nr_legacy_irqs() && isa_irq_to_gsi[gsi] == gsi) |
220580fb | 365 | isa_irq_to_gsi[gsi] = INVALID_ACPI_IRQ; |
8d7cdcb9 JL |
366 | isa_irq_to_gsi[bus_irq] = gsi; |
367 | } | |
368 | ||
369 | static int mp_config_acpi_gsi(struct device *dev, u32 gsi, int trigger, | |
370 | int polarity) | |
371 | { | |
372 | #ifdef CONFIG_X86_MPPARSE | |
373 | struct mpc_intsrc mp_irq; | |
374 | struct pci_dev *pdev; | |
375 | unsigned char number; | |
376 | unsigned int devfn; | |
377 | int ioapic; | |
378 | u8 pin; | |
379 | ||
380 | if (!acpi_ioapic) | |
381 | return 0; | |
382 | if (!dev || !dev_is_pci(dev)) | |
383 | return 0; | |
384 | ||
385 | pdev = to_pci_dev(dev); | |
386 | number = pdev->bus->number; | |
387 | devfn = pdev->devfn; | |
388 | pin = pdev->pin; | |
389 | /* print the entry should happen on mptable identically */ | |
390 | mp_irq.type = MP_INTSRC; | |
391 | mp_irq.irqtype = mp_INT; | |
392 | mp_irq.irqflag = (trigger == ACPI_EDGE_SENSITIVE ? 4 : 0x0c) | | |
393 | (polarity == ACPI_ACTIVE_HIGH ? 1 : 3); | |
394 | mp_irq.srcbus = number; | |
395 | mp_irq.srcbusirq = (((devfn >> 3) & 0x1f) << 2) | ((pin - 1) & 3); | |
396 | ioapic = mp_find_ioapic(gsi); | |
397 | mp_irq.dstapic = mpc_ioapic_id(ioapic); | |
398 | mp_irq.dstirq = mp_find_ioapic_pin(ioapic, gsi); | |
399 | ||
400 | mp_save_irq(&mp_irq); | |
401 | #endif | |
402 | return 0; | |
403 | } | |
404 | ||
25271415 VS |
405 | static int __init mp_register_ioapic_irq(u8 bus_irq, u8 polarity, |
406 | u8 trigger, u32 gsi) | |
407 | { | |
408 | struct mpc_intsrc mp_irq; | |
409 | int ioapic, pin; | |
410 | ||
411 | /* Convert 'gsi' to 'ioapic.pin'(INTIN#) */ | |
412 | ioapic = mp_find_ioapic(gsi); | |
413 | if (ioapic < 0) { | |
414 | pr_warn("Failed to find ioapic for gsi : %u\n", gsi); | |
415 | return ioapic; | |
416 | } | |
417 | ||
418 | pin = mp_find_ioapic_pin(ioapic, gsi); | |
419 | ||
420 | mp_irq.type = MP_INTSRC; | |
421 | mp_irq.irqtype = mp_INT; | |
422 | mp_irq.irqflag = (trigger << 2) | polarity; | |
423 | mp_irq.srcbus = MP_ISA_BUS; | |
424 | mp_irq.srcbusirq = bus_irq; | |
425 | mp_irq.dstapic = mpc_ioapic_id(ioapic); | |
426 | mp_irq.dstirq = pin; | |
427 | ||
428 | mp_save_irq(&mp_irq); | |
429 | ||
430 | return 0; | |
431 | } | |
432 | ||
1da177e4 | 433 | static int __init |
60574d1e | 434 | acpi_parse_ioapic(union acpi_subtable_headers * header, const unsigned long end) |
1da177e4 | 435 | { |
5f3b1a8b | 436 | struct acpi_madt_io_apic *ioapic = NULL; |
ca7e28aa JL |
437 | struct ioapic_domain_cfg cfg = { |
438 | .type = IOAPIC_DOMAIN_DYNAMIC, | |
f7a0c786 | 439 | .ops = &mp_ioapic_irqdomain_ops, |
ca7e28aa | 440 | }; |
1da177e4 | 441 | |
5f3b1a8b | 442 | ioapic = (struct acpi_madt_io_apic *)header; |
1da177e4 LT |
443 | |
444 | if (BAD_MADT_ENTRY(ioapic, end)) | |
445 | return -EINVAL; | |
4be44fcd | 446 | |
60574d1e | 447 | acpi_table_print_madt_entry(&header->common); |
1da177e4 | 448 | |
ca7e28aa JL |
449 | /* Statically assign IRQ numbers for IOAPICs hosting legacy IRQs */ |
450 | if (ioapic->global_irq_base < nr_legacy_irqs()) | |
451 | cfg.type = IOAPIC_DOMAIN_LEGACY; | |
452 | ||
453 | mp_register_ioapic(ioapic->id, ioapic->address, ioapic->global_irq_base, | |
454 | &cfg); | |
4be44fcd | 455 | |
1da177e4 LT |
456 | return 0; |
457 | } | |
458 | ||
459 | /* | |
460 | * Parse Interrupt Source Override for the ACPI SCI | |
461 | */ | |
9d2062b8 | 462 | static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger, u32 gsi) |
1da177e4 LT |
463 | { |
464 | if (trigger == 0) /* compatible SCI trigger is level */ | |
465 | trigger = 3; | |
466 | ||
467 | if (polarity == 0) /* compatible SCI polarity is low */ | |
468 | polarity = 3; | |
469 | ||
470 | /* Command-line over-ride via acpi_sci= */ | |
5f3b1a8b AS |
471 | if (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) |
472 | trigger = (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) >> 2; | |
1da177e4 | 473 | |
5f3b1a8b AS |
474 | if (acpi_sci_flags & ACPI_MADT_POLARITY_MASK) |
475 | polarity = acpi_sci_flags & ACPI_MADT_POLARITY_MASK; | |
1da177e4 | 476 | |
25271415 VS |
477 | if (bus_irq < NR_IRQS_LEGACY) |
478 | mp_override_legacy_irq(bus_irq, polarity, trigger, gsi); | |
479 | else | |
480 | mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi); | |
481 | ||
f1caa61d | 482 | acpi_penalize_sci_irq(bus_irq, trigger, polarity); |
1da177e4 LT |
483 | |
484 | /* | |
485 | * stash over-ride to indicate we've been here | |
cee324b1 | 486 | * and for later update of acpi_gbl_FADT |
1da177e4 | 487 | */ |
7bdd21ce | 488 | acpi_sci_override_gsi = gsi; |
1da177e4 LT |
489 | return; |
490 | } | |
491 | ||
492 | static int __init | |
60574d1e | 493 | acpi_parse_int_src_ovr(union acpi_subtable_headers * header, |
4be44fcd | 494 | const unsigned long end) |
1da177e4 | 495 | { |
5f3b1a8b | 496 | struct acpi_madt_interrupt_override *intsrc = NULL; |
1da177e4 | 497 | |
5f3b1a8b | 498 | intsrc = (struct acpi_madt_interrupt_override *)header; |
1da177e4 LT |
499 | |
500 | if (BAD_MADT_ENTRY(intsrc, end)) | |
501 | return -EINVAL; | |
502 | ||
60574d1e | 503 | acpi_table_print_madt_entry(&header->common); |
1da177e4 | 504 | |
5f3b1a8b | 505 | if (intsrc->source_irq == acpi_gbl_FADT.sci_interrupt) { |
9d2062b8 | 506 | acpi_sci_ioapic_setup(intsrc->source_irq, |
5f3b1a8b | 507 | intsrc->inti_flags & ACPI_MADT_POLARITY_MASK, |
9d2062b8 EB |
508 | (intsrc->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2, |
509 | intsrc->global_irq); | |
1da177e4 LT |
510 | return 0; |
511 | } | |
512 | ||
ae10ccdc | 513 | if (intsrc->source_irq == 0) { |
7f74f8f2 | 514 | if (acpi_skip_timer_override) { |
14fad24d | 515 | pr_warn("BIOS IRQ0 override ignored.\n"); |
7f74f8f2 AH |
516 | return 0; |
517 | } | |
ae10ccdc FT |
518 | |
519 | if ((intsrc->global_irq == 2) && acpi_fix_pin2_polarity | |
520 | && (intsrc->inti_flags & ACPI_MADT_POLARITY_MASK)) { | |
7f74f8f2 | 521 | intsrc->inti_flags &= ~ACPI_MADT_POLARITY_MASK; |
14fad24d | 522 | pr_warn("BIOS IRQ0 pin2 override: forcing polarity to high active.\n"); |
7f74f8f2 | 523 | } |
1da177e4 LT |
524 | } |
525 | ||
5f3b1a8b AS |
526 | mp_override_legacy_irq(intsrc->source_irq, |
527 | intsrc->inti_flags & ACPI_MADT_POLARITY_MASK, | |
528 | (intsrc->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2, | |
529 | intsrc->global_irq); | |
1da177e4 LT |
530 | |
531 | return 0; | |
532 | } | |
533 | ||
1da177e4 | 534 | static int __init |
60574d1e | 535 | acpi_parse_nmi_src(union acpi_subtable_headers * header, const unsigned long end) |
1da177e4 | 536 | { |
5f3b1a8b | 537 | struct acpi_madt_nmi_source *nmi_src = NULL; |
1da177e4 | 538 | |
5f3b1a8b | 539 | nmi_src = (struct acpi_madt_nmi_source *)header; |
1da177e4 LT |
540 | |
541 | if (BAD_MADT_ENTRY(nmi_src, end)) | |
542 | return -EINVAL; | |
543 | ||
60574d1e | 544 | acpi_table_print_madt_entry(&header->common); |
1da177e4 LT |
545 | |
546 | /* TBD: Support nimsrc entries? */ | |
547 | ||
548 | return 0; | |
549 | } | |
550 | ||
4be44fcd | 551 | #endif /* CONFIG_X86_IO_APIC */ |
1da177e4 | 552 | |
1da177e4 LT |
553 | /* |
554 | * acpi_pic_sci_set_trigger() | |
5f3b1a8b | 555 | * |
1da177e4 LT |
556 | * use ELCR to set PIC-mode trigger type for SCI |
557 | * | |
558 | * If a PIC-mode SCI is not recognized or gives spurious IRQ7's | |
559 | * it may require Edge Trigger -- use "acpi_sci=edge" | |
560 | * | |
34739a28 | 561 | * Port 0x4d0-4d1 are ELCR1 and ELCR2, the Edge/Level Control Registers |
1da177e4 | 562 | * for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge. |
34739a28 MR |
563 | * ELCR1 is IRQs 0-7 (IRQ 0, 1, 2 must be 0) |
564 | * ELCR2 is IRQs 8-15 (IRQ 8, 13 must be 0) | |
1da177e4 LT |
565 | */ |
566 | ||
4be44fcd | 567 | void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger) |
1da177e4 LT |
568 | { |
569 | unsigned int mask = 1 << irq; | |
570 | unsigned int old, new; | |
571 | ||
572 | /* Real old ELCR mask */ | |
d2531661 | 573 | old = inb(PIC_ELCR1) | (inb(PIC_ELCR2) << 8); |
1da177e4 LT |
574 | |
575 | /* | |
27b46d76 | 576 | * If we use ACPI to set PCI IRQs, then we should clear ELCR |
1da177e4 LT |
577 | * since we will set it correctly as we enable the PCI irq |
578 | * routing. | |
579 | */ | |
580 | new = acpi_noirq ? old : 0; | |
581 | ||
582 | /* | |
583 | * Update SCI information in the ELCR, it isn't in the PCI | |
584 | * routing tables.. | |
585 | */ | |
586 | switch (trigger) { | |
4be44fcd | 587 | case 1: /* Edge - clear */ |
1da177e4 LT |
588 | new &= ~mask; |
589 | break; | |
4be44fcd | 590 | case 3: /* Level - set */ |
1da177e4 LT |
591 | new |= mask; |
592 | break; | |
593 | } | |
594 | ||
595 | if (old == new) | |
596 | return; | |
597 | ||
14fad24d | 598 | pr_warn("setting ELCR to %04x (from %04x)\n", new, old); |
d2531661 MR |
599 | outb(new, PIC_ELCR1); |
600 | outb(new >> 8, PIC_ELCR2); | |
1da177e4 LT |
601 | } |
602 | ||
6b9fb708 | 603 | int acpi_gsi_to_irq(u32 gsi, unsigned int *irqp) |
1da177e4 | 604 | { |
b568b860 JL |
605 | int rc, irq, trigger, polarity; |
606 | ||
1ea76fba JL |
607 | if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { |
608 | *irqp = gsi; | |
609 | return 0; | |
610 | } | |
611 | ||
b568b860 | 612 | rc = acpi_get_override_irq(gsi, &trigger, &polarity); |
a89bca27 AS |
613 | if (rc) |
614 | return rc; | |
b568b860 | 615 | |
a89bca27 AS |
616 | trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE; |
617 | polarity = polarity ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH; | |
618 | irq = acpi_register_gsi(NULL, gsi, trigger, polarity); | |
619 | if (irq < 0) | |
620 | return irq; | |
621 | ||
622 | *irqp = irq; | |
623 | return 0; | |
1da177e4 | 624 | } |
81e88fdc | 625 | EXPORT_SYMBOL_GPL(acpi_gsi_to_irq); |
1da177e4 | 626 | |
2c2df841 EB |
627 | int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi) |
628 | { | |
95d76acc | 629 | if (isa_irq < nr_legacy_irqs() && |
220580fb | 630 | isa_irq_to_gsi[isa_irq] != INVALID_ACPI_IRQ) { |
032329ee JL |
631 | *gsi = isa_irq_to_gsi[isa_irq]; |
632 | return 0; | |
633 | } | |
634 | ||
635 | return -1; | |
2c2df841 EB |
636 | } |
637 | ||
2f065aef JF |
638 | static int acpi_register_gsi_pic(struct device *dev, u32 gsi, |
639 | int trigger, int polarity) | |
1da177e4 | 640 | { |
1da177e4 LT |
641 | #ifdef CONFIG_PCI |
642 | /* | |
643 | * Make sure all (legacy) PCI IRQs are set as level-triggered. | |
644 | */ | |
2f065aef | 645 | if (trigger == ACPI_LEVEL_SENSITIVE) |
ea6cd250 | 646 | elcr_set_level_irq(gsi); |
1da177e4 LT |
647 | #endif |
648 | ||
2f065aef JF |
649 | return gsi; |
650 | } | |
651 | ||
2f82c9dc | 652 | #ifdef CONFIG_X86_LOCAL_APIC |
2f065aef JF |
653 | static int acpi_register_gsi_ioapic(struct device *dev, u32 gsi, |
654 | int trigger, int polarity) | |
655 | { | |
84245af7 | 656 | int irq = gsi; |
1da177e4 | 657 | #ifdef CONFIG_X86_IO_APIC |
46176f39 JL |
658 | int node; |
659 | struct irq_alloc_info info; | |
660 | ||
661 | node = dev ? dev_to_node(dev) : NUMA_NO_NODE; | |
662 | trigger = trigger == ACPI_EDGE_SENSITIVE ? 0 : 1; | |
663 | polarity = polarity == ACPI_ACTIVE_HIGH ? 0 : 1; | |
664 | ioapic_set_alloc_attr(&info, node, trigger, polarity); | |
665 | ||
5da2fd26 | 666 | mutex_lock(&acpi_ioapic_lock); |
46176f39 JL |
667 | irq = mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC, &info); |
668 | /* Don't set up the ACPI SCI because it's already set up */ | |
7d7fb91c | 669 | if (irq >= 0 && enable_update_mptable && gsi != acpi_gbl_FADT.sci_interrupt) |
46176f39 | 670 | mp_config_acpi_gsi(dev, gsi, trigger, polarity); |
5da2fd26 | 671 | mutex_unlock(&acpi_ioapic_lock); |
1da177e4 | 672 | #endif |
2f065aef | 673 | |
84245af7 | 674 | return irq; |
2f065aef JF |
675 | } |
676 | ||
6a38fa0e JL |
677 | static void acpi_unregister_gsi_ioapic(u32 gsi) |
678 | { | |
679 | #ifdef CONFIG_X86_IO_APIC | |
46176f39 JL |
680 | int irq; |
681 | ||
5da2fd26 | 682 | mutex_lock(&acpi_ioapic_lock); |
46176f39 JL |
683 | irq = mp_map_gsi_to_irq(gsi, 0, NULL); |
684 | if (irq > 0) | |
685 | mp_unmap_irq(irq); | |
5da2fd26 | 686 | mutex_unlock(&acpi_ioapic_lock); |
6a38fa0e | 687 | #endif |
2f065aef | 688 | } |
2f82c9dc | 689 | #endif |
2f065aef | 690 | |
90f6881e JF |
691 | int (*__acpi_register_gsi)(struct device *dev, u32 gsi, |
692 | int trigger, int polarity) = acpi_register_gsi_pic; | |
6a38fa0e | 693 | void (*__acpi_unregister_gsi)(u32 gsi) = NULL; |
2f065aef | 694 | |
d6a77ead KRW |
695 | #ifdef CONFIG_ACPI_SLEEP |
696 | int (*acpi_suspend_lowlevel)(void) = x86_acpi_suspend_lowlevel; | |
697 | #else | |
698 | int (*acpi_suspend_lowlevel)(void); | |
699 | #endif | |
700 | ||
2f065aef JF |
701 | /* |
702 | * success: return IRQ number (>=0) | |
703 | * failure: return < 0 | |
704 | */ | |
705 | int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity) | |
706 | { | |
84245af7 | 707 | return __acpi_register_gsi(dev, gsi, trigger, polarity); |
1da177e4 | 708 | } |
35e92b78 AS |
709 | EXPORT_SYMBOL_GPL(acpi_register_gsi); |
710 | ||
711 | void acpi_unregister_gsi(u32 gsi) | |
712 | { | |
6a38fa0e JL |
713 | if (__acpi_unregister_gsi) |
714 | __acpi_unregister_gsi(gsi); | |
35e92b78 AS |
715 | } |
716 | EXPORT_SYMBOL_GPL(acpi_unregister_gsi); | |
4be44fcd | 717 | |
9f50c6ea | 718 | #ifdef CONFIG_X86_LOCAL_APIC |
e819813f | 719 | static void __init acpi_set_irq_model_ioapic(void) |
2f065aef JF |
720 | { |
721 | acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; | |
722 | __acpi_register_gsi = acpi_register_gsi_ioapic; | |
6a38fa0e | 723 | __acpi_unregister_gsi = acpi_unregister_gsi_ioapic; |
2f065aef JF |
724 | acpi_ioapic = 1; |
725 | } | |
9f50c6ea | 726 | #endif |
2f065aef | 727 | |
1da177e4 LT |
728 | /* |
729 | * ACPI based hotplug support for CPU | |
730 | */ | |
731 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | |
d8191fa4 | 732 | #include <acpi/processor.h> |
009cbadb | 733 | |
c962cff1 | 734 | static int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid) |
0271f910 HL |
735 | { |
736 | #ifdef CONFIG_ACPI_NUMA | |
737 | int nid; | |
738 | ||
739 | nid = acpi_get_node(handle); | |
4370a3ef | 740 | if (nid != NUMA_NO_NODE) { |
896dc506 JL |
741 | set_apicid_to_node(physid, nid); |
742 | numa_set_node(cpu, nid); | |
743 | } | |
0271f910 | 744 | #endif |
dc6db24d | 745 | return 0; |
0271f910 | 746 | } |
009cbadb | 747 | |
febf2407 VK |
748 | int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, |
749 | int *pcpu) | |
1da177e4 | 750 | { |
73fea175 | 751 | int cpu; |
ee943a82 | 752 | |
febf2407 | 753 | cpu = acpi_register_lapic(physid, acpi_id, ACPI_MADT_ENABLED); |
7e1f85f9 | 754 | if (cpu < 0) { |
14fad24d | 755 | pr_info("Unable to map lapic to logical cpu number\n"); |
7e1f85f9 | 756 | return cpu; |
73fea175 AR |
757 | } |
758 | ||
d8191fa4 | 759 | acpi_processor_set_pdc(handle); |
0271f910 | 760 | acpi_map_cpu2node(handle, cpu, physid); |
73fea175 AR |
761 | |
762 | *pcpu = cpu; | |
7e1f85f9 | 763 | return 0; |
1da177e4 | 764 | } |
d02dc27d | 765 | EXPORT_SYMBOL(acpi_map_cpu); |
1da177e4 | 766 | |
d02dc27d | 767 | int acpi_unmap_cpu(int cpu) |
1da177e4 | 768 | { |
c4c60524 WC |
769 | #ifdef CONFIG_ACPI_NUMA |
770 | set_apicid_to_node(per_cpu(x86_cpu_to_apicid, cpu), NUMA_NO_NODE); | |
771 | #endif | |
772 | ||
71fff5e6 | 773 | per_cpu(x86_cpu_to_apicid, cpu) = -1; |
9628937d | 774 | set_cpu_present(cpu, false); |
73fea175 AR |
775 | num_processors--; |
776 | ||
777 | return (0); | |
1da177e4 | 778 | } |
d02dc27d | 779 | EXPORT_SYMBOL(acpi_unmap_cpu); |
4be44fcd | 780 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ |
1da177e4 | 781 | |
4be44fcd | 782 | int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) |
b1bb248a | 783 | { |
7db298cb JL |
784 | int ret = -ENOSYS; |
785 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
786 | int ioapic_id; | |
787 | u64 addr; | |
788 | struct ioapic_domain_cfg cfg = { | |
789 | .type = IOAPIC_DOMAIN_DYNAMIC, | |
f7a0c786 | 790 | .ops = &mp_ioapic_irqdomain_ops, |
7db298cb JL |
791 | }; |
792 | ||
793 | ioapic_id = acpi_get_ioapic_id(handle, gsi_base, &addr); | |
794 | if (ioapic_id < 0) { | |
795 | unsigned long long uid; | |
796 | acpi_status status; | |
797 | ||
798 | status = acpi_evaluate_integer(handle, METHOD_NAME__UID, | |
799 | NULL, &uid); | |
800 | if (ACPI_FAILURE(status)) { | |
801 | acpi_handle_warn(handle, "failed to get IOAPIC ID.\n"); | |
802 | return -EINVAL; | |
803 | } | |
804 | ioapic_id = (int)uid; | |
805 | } | |
806 | ||
807 | mutex_lock(&acpi_ioapic_lock); | |
808 | ret = mp_register_ioapic(ioapic_id, phys_addr, gsi_base, &cfg); | |
809 | mutex_unlock(&acpi_ioapic_lock); | |
810 | #endif | |
811 | ||
812 | return ret; | |
b1bb248a KK |
813 | } |
814 | EXPORT_SYMBOL(acpi_register_ioapic); | |
815 | ||
4be44fcd | 816 | int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base) |
b1bb248a | 817 | { |
15516a3b JL |
818 | int ret = -ENOSYS; |
819 | ||
820 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
821 | mutex_lock(&acpi_ioapic_lock); | |
822 | ret = mp_unregister_ioapic(gsi_base); | |
823 | mutex_unlock(&acpi_ioapic_lock); | |
824 | #endif | |
4be44fcd | 825 | |
15516a3b JL |
826 | return ret; |
827 | } | |
b1bb248a KK |
828 | EXPORT_SYMBOL(acpi_unregister_ioapic); |
829 | ||
e89900c9 | 830 | /** |
d9f6e12f | 831 | * acpi_ioapic_registered - Check whether IOAPIC associated with @gsi_base |
e89900c9 | 832 | * has been registered |
a97673a1 | 833 | * @handle: ACPI handle of the IOAPIC device |
e89900c9 JL |
834 | * @gsi_base: GSI base associated with the IOAPIC |
835 | * | |
836 | * Assume caller holds some type of lock to serialize acpi_ioapic_registered() | |
837 | * with acpi_register_ioapic()/acpi_unregister_ioapic(). | |
838 | */ | |
839 | int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base) | |
840 | { | |
841 | int ret = 0; | |
842 | ||
843 | #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC | |
844 | mutex_lock(&acpi_ioapic_lock); | |
845 | ret = mp_ioapic_registered(gsi_base); | |
846 | mutex_unlock(&acpi_ioapic_lock); | |
847 | #endif | |
848 | ||
849 | return ret; | |
850 | } | |
851 | ||
5f3b1a8b | 852 | static int __init acpi_parse_sbf(struct acpi_table_header *table) |
1da177e4 | 853 | { |
2fad9308 | 854 | struct acpi_table_boot *sb = (struct acpi_table_boot *)table; |
1da177e4 | 855 | |
5f3b1a8b | 856 | sbf_port = sb->cmos_index; /* Save CMOS port */ |
1da177e4 LT |
857 | |
858 | return 0; | |
859 | } | |
860 | ||
1da177e4 | 861 | #ifdef CONFIG_HPET_TIMER |
2d0c87c3 | 862 | #include <asm/hpet.h> |
1da177e4 | 863 | |
dd96dc32 | 864 | static struct resource *hpet_res __initdata; |
a1dfd851 | 865 | |
5f3b1a8b | 866 | static int __init acpi_parse_hpet(struct acpi_table_header *table) |
1da177e4 | 867 | { |
2fad9308 | 868 | struct acpi_table_hpet *hpet_tbl = (struct acpi_table_hpet *)table; |
1da177e4 | 869 | |
ad363f80 | 870 | if (hpet_tbl->address.space_id != ACPI_SPACE_MEM) { |
14fad24d | 871 | pr_warn("HPET timers must be located in memory.\n"); |
1da177e4 LT |
872 | return -1; |
873 | } | |
f0f4c343 | 874 | |
2d0c87c3 | 875 | hpet_address = hpet_tbl->address.address; |
c8bc6f3c | 876 | hpet_blockid = hpet_tbl->sequence; |
f4df73c2 TG |
877 | |
878 | /* | |
879 | * Some broken BIOSes advertise HPET at 0x0. We really do not | |
880 | * want to allocate a resource there. | |
881 | */ | |
882 | if (!hpet_address) { | |
14fad24d | 883 | pr_warn("HPET id: %#x base: %#lx is invalid\n", hpet_tbl->id, hpet_address); |
f4df73c2 TG |
884 | return 0; |
885 | } | |
886 | #ifdef CONFIG_X86_64 | |
887 | /* | |
888 | * Some even more broken BIOSes advertise HPET at | |
889 | * 0xfed0000000000000 instead of 0xfed00000. Fix it up and add | |
890 | * some noise: | |
891 | */ | |
892 | if (hpet_address == 0xfed0000000000000UL) { | |
893 | if (!hpet_force_user) { | |
14fad24d HK |
894 | pr_warn("HPET id: %#x base: 0xfed0000000000000 is bogus, try hpet=force on the kernel command line to fix it up to 0xfed00000.\n", |
895 | hpet_tbl->id); | |
f4df73c2 TG |
896 | hpet_address = 0; |
897 | return 0; | |
898 | } | |
14fad24d HK |
899 | pr_warn("HPET id: %#x base: 0xfed0000000000000 fixed up to 0xfed00000.\n", |
900 | hpet_tbl->id); | |
f4df73c2 TG |
901 | hpet_address >>= 32; |
902 | } | |
903 | #endif | |
14fad24d | 904 | pr_info("HPET id: %#x base: %#lx\n", hpet_tbl->id, hpet_address); |
1da177e4 | 905 | |
a1dfd851 AD |
906 | /* |
907 | * Allocate and initialize the HPET firmware resource for adding into | |
908 | * the resource tree during the lateinit timeframe. | |
909 | */ | |
910 | #define HPET_RESOURCE_NAME_SIZE 9 | |
2a5bda5a | 911 | hpet_res = memblock_alloc(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE, |
7e1c4e27 | 912 | SMP_CACHE_BYTES); |
8a7f97b9 MR |
913 | if (!hpet_res) |
914 | panic("%s: Failed to allocate %zu bytes\n", __func__, | |
915 | sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE); | |
a1dfd851 | 916 | |
a1dfd851 AD |
917 | hpet_res->name = (void *)&hpet_res[1]; |
918 | hpet_res->flags = IORESOURCE_MEM; | |
919 | snprintf((char *)hpet_res->name, HPET_RESOURCE_NAME_SIZE, "HPET %u", | |
920 | hpet_tbl->sequence); | |
921 | ||
922 | hpet_res->start = hpet_address; | |
923 | hpet_res->end = hpet_address + (1 * 1024) - 1; | |
924 | ||
1da177e4 LT |
925 | return 0; |
926 | } | |
a1dfd851 AD |
927 | |
928 | /* | |
929 | * hpet_insert_resource inserts the HPET resources used into the resource | |
930 | * tree. | |
931 | */ | |
932 | static __init int hpet_insert_resource(void) | |
933 | { | |
934 | if (!hpet_res) | |
935 | return 1; | |
936 | ||
937 | return insert_resource(&iomem_resource, hpet_res); | |
938 | } | |
939 | ||
940 | late_initcall(hpet_insert_resource); | |
941 | ||
1da177e4 LT |
942 | #else |
943 | #define acpi_parse_hpet NULL | |
944 | #endif | |
945 | ||
5f3b1a8b | 946 | static int __init acpi_parse_fadt(struct acpi_table_header *table) |
1da177e4 | 947 | { |
7a17b82c | 948 | if (!(acpi_gbl_FADT.boot_flags & ACPI_FADT_LEGACY_DEVICES)) { |
14fad24d | 949 | pr_debug("no legacy devices present\n"); |
7a17b82c LR |
950 | x86_platform.legacy.devices.pnpbios = 0; |
951 | } | |
952 | ||
93ffa9a4 DT |
953 | if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID && |
954 | !(acpi_gbl_FADT.boot_flags & ACPI_FADT_8042) && | |
955 | x86_platform.legacy.i8042 != X86_LEGACY_I8042_PLATFORM_ABSENT) { | |
14fad24d | 956 | pr_debug("i8042 controller is absent\n"); |
93ffa9a4 DT |
957 | x86_platform.legacy.i8042 = X86_LEGACY_I8042_FIRMWARE_ABSENT; |
958 | } | |
959 | ||
088a8ef8 | 960 | if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_CMOS_RTC) { |
14fad24d | 961 | pr_debug("not registering RTC platform device\n"); |
088a8ef8 LR |
962 | x86_platform.legacy.rtc = 0; |
963 | } | |
90660ec3 | 964 | |
6d730525 | 965 | if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_VGA) { |
14fad24d | 966 | pr_debug("probing for VGA not safe\n"); |
6d730525 JG |
967 | x86_platform.legacy.no_vga = 1; |
968 | } | |
969 | ||
1da177e4 LT |
970 | #ifdef CONFIG_X86_PM_TIMER |
971 | /* detect the location of the ACPI PM Timer */ | |
5f3b1a8b | 972 | if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) { |
1da177e4 | 973 | /* FADT rev. 2 */ |
5f3b1a8b | 974 | if (acpi_gbl_FADT.xpm_timer_block.space_id != |
4be44fcd | 975 | ACPI_ADR_SPACE_SYSTEM_IO) |
1da177e4 LT |
976 | return 0; |
977 | ||
5f3b1a8b | 978 | pmtmr_ioport = acpi_gbl_FADT.xpm_timer_block.address; |
e6e87b4b DSL |
979 | /* |
980 | * "X" fields are optional extensions to the original V1.0 | |
981 | * fields, so we must selectively expand V1.0 fields if the | |
982 | * corresponding X field is zero. | |
983 | */ | |
984 | if (!pmtmr_ioport) | |
5f3b1a8b | 985 | pmtmr_ioport = acpi_gbl_FADT.pm_timer_block; |
1da177e4 LT |
986 | } else { |
987 | /* FADT rev. 1 */ | |
5f3b1a8b | 988 | pmtmr_ioport = acpi_gbl_FADT.pm_timer_block; |
1da177e4 LT |
989 | } |
990 | if (pmtmr_ioport) | |
14fad24d | 991 | pr_info("PM-Timer IO Port: %#x\n", pmtmr_ioport); |
1da177e4 LT |
992 | #endif |
993 | return 0; | |
994 | } | |
995 | ||
1da177e4 LT |
996 | #ifdef CONFIG_X86_LOCAL_APIC |
997 | /* | |
998 | * Parse LAPIC entries in MADT | |
999 | * returns 0 on success, < 0 on error | |
1000 | */ | |
31d2092e | 1001 | |
cbf9bd60 YL |
1002 | static int __init early_acpi_parse_madt_lapic_addr_ovr(void) |
1003 | { | |
1004 | int count; | |
1005 | ||
93984fbd | 1006 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
cbf9bd60 YL |
1007 | return -ENODEV; |
1008 | ||
1009 | /* | |
1010 | * Note that the LAPIC address is obtained from the MADT (32-bit value) | |
6a6256f9 | 1011 | * and (optionally) overridden by a LAPIC_ADDR_OVR entry (64-bit value). |
cbf9bd60 YL |
1012 | */ |
1013 | ||
e819813f JL |
1014 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE, |
1015 | acpi_parse_lapic_addr_ovr, 0); | |
cbf9bd60 | 1016 | if (count < 0) { |
14fad24d | 1017 | pr_err("Error parsing LAPIC address override entry\n"); |
cbf9bd60 YL |
1018 | return count; |
1019 | } | |
1020 | ||
c0104d38 | 1021 | register_lapic_address(acpi_lapic_addr); |
cbf9bd60 YL |
1022 | |
1023 | return count; | |
1024 | } | |
1025 | ||
4be44fcd | 1026 | static int __init acpi_parse_madt_lapic_entries(void) |
1da177e4 LT |
1027 | { |
1028 | int count; | |
7237d3de | 1029 | int x2count = 0; |
d81056b5 LA |
1030 | int ret; |
1031 | struct acpi_subtable_proc madt_proc[2]; | |
1da177e4 | 1032 | |
93984fbd | 1033 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
0fcd2709 AK |
1034 | return -ENODEV; |
1035 | ||
ac049c1d | 1036 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC, |
cb2ded37 | 1037 | acpi_parse_sapic, MAX_LOCAL_APIC); |
ac049c1d | 1038 | |
7237d3de | 1039 | if (!count) { |
d81056b5 LA |
1040 | memset(madt_proc, 0, sizeof(madt_proc)); |
1041 | madt_proc[0].id = ACPI_MADT_TYPE_LOCAL_APIC; | |
1042 | madt_proc[0].handler = acpi_parse_lapic; | |
1043 | madt_proc[1].id = ACPI_MADT_TYPE_LOCAL_X2APIC; | |
1044 | madt_proc[1].handler = acpi_parse_x2apic; | |
1045 | ret = acpi_table_parse_entries_array(ACPI_SIG_MADT, | |
1046 | sizeof(struct acpi_table_madt), | |
1047 | madt_proc, ARRAY_SIZE(madt_proc), MAX_LOCAL_APIC); | |
1048 | if (ret < 0) { | |
14fad24d | 1049 | pr_err("Error parsing LAPIC/X2APIC entries\n"); |
d81056b5 LA |
1050 | return ret; |
1051 | } | |
1052 | ||
c12f29a5 AS |
1053 | count = madt_proc[0].count; |
1054 | x2count = madt_proc[1].count; | |
7237d3de SS |
1055 | } |
1056 | if (!count && !x2count) { | |
14fad24d | 1057 | pr_err("No LAPIC entries present\n"); |
1da177e4 LT |
1058 | /* TBD: Cleanup to allow fallback to MPS */ |
1059 | return -ENODEV; | |
7237d3de | 1060 | } else if (count < 0 || x2count < 0) { |
14fad24d | 1061 | pr_err("Error parsing LAPIC entry\n"); |
1da177e4 LT |
1062 | /* TBD: Cleanup to allow fallback to MPS */ |
1063 | return count; | |
1064 | } | |
1065 | ||
e819813f JL |
1066 | x2count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_X2APIC_NMI, |
1067 | acpi_parse_x2apic_nmi, 0); | |
1068 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, | |
1069 | acpi_parse_lapic_nmi, 0); | |
7237d3de | 1070 | if (count < 0 || x2count < 0) { |
14fad24d | 1071 | pr_err("Error parsing LAPIC NMI entry\n"); |
1da177e4 LT |
1072 | /* TBD: Cleanup to allow fallback to MPS */ |
1073 | return count; | |
1074 | } | |
1075 | return 0; | |
1076 | } | |
4be44fcd | 1077 | #endif /* CONFIG_X86_LOCAL_APIC */ |
1da177e4 | 1078 | |
8466361a | 1079 | #ifdef CONFIG_X86_IO_APIC |
a491cc90 | 1080 | static void __init mp_config_acpi_legacy_irqs(void) |
11113f84 | 1081 | { |
6df8809b | 1082 | int i; |
c2c21745 | 1083 | struct mpc_intsrc mp_irq; |
11113f84 | 1084 | |
bb8187d3 | 1085 | #ifdef CONFIG_EISA |
11113f84 AS |
1086 | /* |
1087 | * Fabricate the legacy ISA bus (bus #31). | |
1088 | */ | |
1089 | mp_bus_id_to_type[MP_ISA_BUS] = MP_BUS_ISA; | |
1090 | #endif | |
1091 | set_bit(MP_ISA_BUS, mp_bus_not_pci); | |
42d516ce | 1092 | pr_debug("Bus #%d is ISA (nIRQs: %d)\n", MP_ISA_BUS, nr_legacy_irqs()); |
11113f84 | 1093 | |
11113f84 AS |
1094 | /* |
1095 | * Use the default configuration for the IRQs 0-15. Unless | |
1096 | * overridden by (MADT) interrupt source override entries. | |
1097 | */ | |
95d76acc | 1098 | for (i = 0; i < nr_legacy_irqs(); i++) { |
0fd52670 EB |
1099 | int ioapic, pin; |
1100 | unsigned int dstapic; | |
11113f84 | 1101 | int idx; |
0fd52670 EB |
1102 | u32 gsi; |
1103 | ||
1104 | /* Locate the gsi that irq i maps to. */ | |
1105 | if (acpi_isa_irq_to_gsi(i, &gsi)) | |
1106 | continue; | |
1107 | ||
1108 | /* | |
1109 | * Locate the IOAPIC that manages the ISA IRQ. | |
1110 | */ | |
1111 | ioapic = mp_find_ioapic(gsi); | |
1112 | if (ioapic < 0) | |
1113 | continue; | |
1114 | pin = mp_find_ioapic_pin(ioapic, gsi); | |
d5371430 | 1115 | dstapic = mpc_ioapic_id(ioapic); |
11113f84 AS |
1116 | |
1117 | for (idx = 0; idx < mp_irq_entries; idx++) { | |
c2c21745 | 1118 | struct mpc_intsrc *irq = mp_irqs + idx; |
11113f84 AS |
1119 | |
1120 | /* Do we already have a mapping for this ISA IRQ? */ | |
c2c21745 | 1121 | if (irq->srcbus == MP_ISA_BUS && irq->srcbusirq == i) |
11113f84 AS |
1122 | break; |
1123 | ||
1124 | /* Do we already have a mapping for this IOAPIC pin */ | |
0fd52670 | 1125 | if (irq->dstapic == dstapic && irq->dstirq == pin) |
11113f84 AS |
1126 | break; |
1127 | } | |
1128 | ||
1129 | if (idx != mp_irq_entries) { | |
14fad24d | 1130 | pr_debug("ACPI: IRQ%d used by override.\n", i); |
11113f84 AS |
1131 | continue; /* IRQ already used */ |
1132 | } | |
1133 | ||
c2c21745 JSR |
1134 | mp_irq.type = MP_INTSRC; |
1135 | mp_irq.irqflag = 0; /* Conforming */ | |
1136 | mp_irq.srcbus = MP_ISA_BUS; | |
1137 | mp_irq.dstapic = dstapic; | |
1138 | mp_irq.irqtype = mp_INT; | |
1139 | mp_irq.srcbusirq = i; /* Identity mapped */ | |
0fd52670 | 1140 | mp_irq.dstirq = pin; |
11113f84 | 1141 | |
2d8009ba | 1142 | mp_save_irq(&mp_irq); |
11113f84 AS |
1143 | } |
1144 | } | |
1145 | ||
1da177e4 LT |
1146 | /* |
1147 | * Parse IOAPIC related entries in MADT | |
1148 | * returns 0 on success, < 0 on error | |
1149 | */ | |
4be44fcd | 1150 | static int __init acpi_parse_madt_ioapic_entries(void) |
1da177e4 LT |
1151 | { |
1152 | int count; | |
1153 | ||
1154 | /* | |
1155 | * ACPI interpreter is required to complete interrupt setup, | |
1156 | * so if it is off, don't enumerate the io-apics with ACPI. | |
1157 | * If MPS is present, it will handle them, | |
1158 | * otherwise the system will stay in PIC mode | |
1159 | */ | |
6b2b171a | 1160 | if (acpi_disabled || acpi_noirq) |
1da177e4 | 1161 | return -ENODEV; |
1da177e4 | 1162 | |
93984fbd | 1163 | if (!boot_cpu_has(X86_FEATURE_APIC)) |
d3b6a349 AK |
1164 | return -ENODEV; |
1165 | ||
1da177e4 | 1166 | /* |
4be44fcd | 1167 | * if "noapic" boot option, don't look for IO-APICs |
1da177e4 LT |
1168 | */ |
1169 | if (skip_ioapic_setup) { | |
14fad24d | 1170 | pr_info("Skipping IOAPIC probe due to 'noapic' option.\n"); |
1da177e4 LT |
1171 | return -ENODEV; |
1172 | } | |
1173 | ||
e819813f JL |
1174 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_IO_APIC, acpi_parse_ioapic, |
1175 | MAX_IO_APICS); | |
1da177e4 | 1176 | if (!count) { |
14fad24d | 1177 | pr_err("No IOAPIC entries present\n"); |
1da177e4 | 1178 | return -ENODEV; |
4be44fcd | 1179 | } else if (count < 0) { |
14fad24d | 1180 | pr_err("Error parsing IOAPIC entry\n"); |
1da177e4 LT |
1181 | return count; |
1182 | } | |
1183 | ||
e819813f JL |
1184 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_INTERRUPT_OVERRIDE, |
1185 | acpi_parse_int_src_ovr, nr_irqs); | |
1da177e4 | 1186 | if (count < 0) { |
14fad24d | 1187 | pr_err("Error parsing interrupt source overrides entry\n"); |
1da177e4 LT |
1188 | /* TBD: Cleanup to allow fallback to MPS */ |
1189 | return count; | |
1190 | } | |
1191 | ||
1192 | /* | |
1193 | * If BIOS did not supply an INT_SRC_OVR for the SCI | |
1194 | * pretend we got one so we can set the SCI flags. | |
7c7bcfea | 1195 | * But ignore setting up SCI on hardware reduced platforms. |
1da177e4 | 1196 | */ |
7c7bcfea | 1197 | if (acpi_sci_override_gsi == INVALID_ACPI_IRQ && !acpi_gbl_reduced_hardware) |
9d2062b8 EB |
1198 | acpi_sci_ioapic_setup(acpi_gbl_FADT.sci_interrupt, 0, 0, |
1199 | acpi_gbl_FADT.sci_interrupt); | |
1da177e4 | 1200 | |
af901ca1 | 1201 | /* Fill in identity legacy mappings where no override */ |
1da177e4 LT |
1202 | mp_config_acpi_legacy_irqs(); |
1203 | ||
e819813f JL |
1204 | count = acpi_table_parse_madt(ACPI_MADT_TYPE_NMI_SOURCE, |
1205 | acpi_parse_nmi_src, nr_irqs); | |
1da177e4 | 1206 | if (count < 0) { |
14fad24d | 1207 | pr_err("Error parsing NMI SRC entry\n"); |
1da177e4 LT |
1208 | /* TBD: Cleanup to allow fallback to MPS */ |
1209 | return count; | |
1210 | } | |
1211 | ||
1212 | return 0; | |
1213 | } | |
1214 | #else | |
1215 | static inline int acpi_parse_madt_ioapic_entries(void) | |
1216 | { | |
1217 | return -1; | |
1218 | } | |
8466361a | 1219 | #endif /* !CONFIG_X86_IO_APIC */ |
1da177e4 | 1220 | |
cbf9bd60 YL |
1221 | static void __init early_acpi_process_madt(void) |
1222 | { | |
1223 | #ifdef CONFIG_X86_LOCAL_APIC | |
1224 | int error; | |
1225 | ||
1226 | if (!acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) { | |
1227 | ||
1228 | /* | |
1229 | * Parse MADT LAPIC entries | |
1230 | */ | |
1231 | error = early_acpi_parse_madt_lapic_addr_ovr(); | |
1232 | if (!error) { | |
1233 | acpi_lapic = 1; | |
1234 | smp_found_config = 1; | |
1235 | } | |
1236 | if (error == -EINVAL) { | |
1237 | /* | |
1238 | * Dell Precision Workstation 410, 610 come here. | |
1239 | */ | |
14fad24d | 1240 | pr_err("Invalid BIOS MADT, disabling ACPI\n"); |
cbf9bd60 YL |
1241 | disable_acpi(); |
1242 | } | |
1243 | } | |
1244 | #endif | |
1245 | } | |
1246 | ||
4be44fcd | 1247 | static void __init acpi_process_madt(void) |
1da177e4 LT |
1248 | { |
1249 | #ifdef CONFIG_X86_LOCAL_APIC | |
7f8f97c3 | 1250 | int error; |
1da177e4 | 1251 | |
7f8f97c3 | 1252 | if (!acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) { |
1da177e4 LT |
1253 | |
1254 | /* | |
1255 | * Parse MADT LAPIC entries | |
1256 | */ | |
1257 | error = acpi_parse_madt_lapic_entries(); | |
1258 | if (!error) { | |
1259 | acpi_lapic = 1; | |
1260 | ||
1261 | /* | |
1262 | * Parse MADT IO-APIC entries | |
1263 | */ | |
5da2fd26 | 1264 | mutex_lock(&acpi_ioapic_lock); |
1da177e4 | 1265 | error = acpi_parse_madt_ioapic_entries(); |
5da2fd26 | 1266 | mutex_unlock(&acpi_ioapic_lock); |
1da177e4 | 1267 | if (!error) { |
2f065aef | 1268 | acpi_set_irq_model_ioapic(); |
1da177e4 LT |
1269 | |
1270 | smp_found_config = 1; | |
1da177e4 LT |
1271 | } |
1272 | } | |
1273 | if (error == -EINVAL) { | |
1274 | /* | |
1275 | * Dell Precision Workstation 410, 610 come here. | |
1276 | */ | |
14fad24d | 1277 | pr_err("Invalid BIOS MADT, disabling ACPI\n"); |
1da177e4 LT |
1278 | disable_acpi(); |
1279 | } | |
7b37b5fd LB |
1280 | } else { |
1281 | /* | |
1282 | * ACPI found no MADT, and so ACPI wants UP PIC mode. | |
1283 | * In the event an MPS table was found, forget it. | |
1284 | * Boot with "acpi=off" to use MPS on such a system. | |
1285 | */ | |
1286 | if (smp_found_config) { | |
14fad24d | 1287 | pr_warn("No APIC-table, disabling MPS\n"); |
7b37b5fd LB |
1288 | smp_found_config = 0; |
1289 | } | |
1da177e4 | 1290 | } |
69b88afa YL |
1291 | |
1292 | /* | |
1293 | * ACPI supports both logical (e.g. Hyper-Threading) and physical | |
1294 | * processors, where MPS only supports physical. | |
1295 | */ | |
1296 | if (acpi_lapic && acpi_ioapic) | |
14fad24d | 1297 | pr_info("Using ACPI (MADT) for SMP configuration information\n"); |
69b88afa | 1298 | else if (acpi_lapic) |
14fad24d | 1299 | pr_info("Using ACPI for processor (LAPIC) configuration information\n"); |
1da177e4 LT |
1300 | #endif |
1301 | return; | |
1302 | } | |
1303 | ||
1855256c | 1304 | static int __init disable_acpi_irq(const struct dmi_system_id *d) |
aea00143 AP |
1305 | { |
1306 | if (!acpi_force) { | |
14fad24d | 1307 | pr_notice("%s detected: force use of acpi=noirq\n", d->ident); |
aea00143 AP |
1308 | acpi_noirq_set(); |
1309 | } | |
1310 | return 0; | |
1311 | } | |
1312 | ||
1855256c | 1313 | static int __init disable_acpi_pci(const struct dmi_system_id *d) |
aea00143 AP |
1314 | { |
1315 | if (!acpi_force) { | |
14fad24d | 1316 | pr_notice("%s detected: force use of pci=noacpi\n", d->ident); |
aea00143 AP |
1317 | acpi_disable_pci(); |
1318 | } | |
1319 | return 0; | |
1320 | } | |
aea00143 | 1321 | |
1855256c | 1322 | static int __init dmi_disable_acpi(const struct dmi_system_id *d) |
aea00143 AP |
1323 | { |
1324 | if (!acpi_force) { | |
14fad24d | 1325 | pr_notice("%s detected: acpi off\n", d->ident); |
aea00143 AP |
1326 | disable_acpi(); |
1327 | } else { | |
14fad24d | 1328 | pr_notice("Warning: DMI blacklist says broken, but acpi forced\n"); |
aea00143 AP |
1329 | } |
1330 | return 0; | |
1331 | } | |
1332 | ||
e2079c43 | 1333 | /* |
ae10ccdc | 1334 | * Force ignoring BIOS IRQ0 override |
e2079c43 RW |
1335 | */ |
1336 | static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d) | |
1337 | { | |
8d89adf4 | 1338 | if (!acpi_skip_timer_override) { |
ae10ccdc | 1339 | pr_notice("%s detected: Ignoring BIOS IRQ0 override\n", |
8d89adf4 IM |
1340 | d->ident); |
1341 | acpi_skip_timer_override = 1; | |
1342 | } | |
e2079c43 RW |
1343 | return 0; |
1344 | } | |
1345 | ||
7486341a LA |
1346 | /* |
1347 | * ACPI offers an alternative platform interface model that removes | |
1348 | * ACPI hardware requirements for platforms that do not implement | |
1349 | * the PC Architecture. | |
1350 | * | |
1351 | * We initialize the Hardware-reduced ACPI model here: | |
1352 | */ | |
50beba07 AS |
1353 | void __init acpi_generic_reduced_hw_init(void) |
1354 | { | |
1355 | /* | |
1356 | * Override x86_init functions and bypass legacy PIC in | |
1357 | * hardware reduced ACPI mode. | |
1358 | */ | |
1359 | x86_init.timers.timer_init = x86_init_noop; | |
1360 | x86_init.irqs.pre_vector_init = x86_init_noop; | |
1361 | legacy_pic = &null_legacy_pic; | |
1362 | } | |
1363 | ||
7486341a LA |
1364 | static void __init acpi_reduced_hw_init(void) |
1365 | { | |
50beba07 | 1366 | if (acpi_gbl_reduced_hardware) |
81b53e5f | 1367 | x86_init.acpi.reduced_hw_early_init(); |
7486341a LA |
1368 | } |
1369 | ||
aea00143 AP |
1370 | /* |
1371 | * If your system is blacklisted here, but you find that acpi=force | |
5b4c0b6f | 1372 | * works for you, please contact linux-acpi@vger.kernel.org |
aea00143 | 1373 | */ |
6faadbbb | 1374 | static const struct dmi_system_id acpi_dmi_table[] __initconst = { |
aea00143 AP |
1375 | /* |
1376 | * Boxes that need ACPI disabled | |
1377 | */ | |
1378 | { | |
4be44fcd LB |
1379 | .callback = dmi_disable_acpi, |
1380 | .ident = "IBM Thinkpad", | |
1381 | .matches = { | |
1382 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1383 | DMI_MATCH(DMI_BOARD_NAME, "2629H1G"), | |
1384 | }, | |
1385 | }, | |
aea00143 | 1386 | |
aea00143 AP |
1387 | /* |
1388 | * Boxes that need ACPI PCI IRQ routing disabled | |
1389 | */ | |
1390 | { | |
4be44fcd LB |
1391 | .callback = disable_acpi_irq, |
1392 | .ident = "ASUS A7V", | |
1393 | .matches = { | |
1394 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"), | |
1395 | DMI_MATCH(DMI_BOARD_NAME, "<A7V>"), | |
1396 | /* newer BIOS, Revision 1011, does work */ | |
1397 | DMI_MATCH(DMI_BIOS_VERSION, | |
1398 | "ASUS A7V ACPI BIOS Revision 1007"), | |
1399 | }, | |
1400 | }, | |
74586fca LB |
1401 | { |
1402 | /* | |
1403 | * Latest BIOS for IBM 600E (1.16) has bad pcinum | |
1404 | * for LPC bridge, which is needed for the PCI | |
1405 | * interrupt links to work. DSDT fix is in bug 5966. | |
1406 | * 2645, 2646 model numbers are shared with 600/600E/600X | |
1407 | */ | |
1408 | .callback = disable_acpi_irq, | |
1409 | .ident = "IBM Thinkpad 600 Series 2645", | |
1410 | .matches = { | |
1411 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1412 | DMI_MATCH(DMI_BOARD_NAME, "2645"), | |
1413 | }, | |
1414 | }, | |
1415 | { | |
1416 | .callback = disable_acpi_irq, | |
1417 | .ident = "IBM Thinkpad 600 Series 2646", | |
1418 | .matches = { | |
1419 | DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), | |
1420 | DMI_MATCH(DMI_BOARD_NAME, "2646"), | |
1421 | }, | |
1422 | }, | |
aea00143 AP |
1423 | /* |
1424 | * Boxes that need ACPI PCI IRQ routing and PCI scan disabled | |
1425 | */ | |
4be44fcd LB |
1426 | { /* _BBN 0 bug */ |
1427 | .callback = disable_acpi_pci, | |
1428 | .ident = "ASUS PR-DLS", | |
1429 | .matches = { | |
1430 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), | |
1431 | DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"), | |
1432 | DMI_MATCH(DMI_BIOS_VERSION, | |
1433 | "ASUS PR-DLS ACPI BIOS Revision 1010"), | |
1434 | DMI_MATCH(DMI_BIOS_DATE, "03/21/2003") | |
1435 | }, | |
1436 | }, | |
aea00143 | 1437 | { |
4be44fcd LB |
1438 | .callback = disable_acpi_pci, |
1439 | .ident = "Acer TravelMate 36x Laptop", | |
1440 | .matches = { | |
1441 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
1442 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), | |
1443 | }, | |
1444 | }, | |
35af2821 AH |
1445 | {} |
1446 | }; | |
1447 | ||
1448 | /* second table for DMI checks that should run after early-quirks */ | |
6faadbbb | 1449 | static const struct dmi_system_id acpi_dmi_table_late[] __initconst = { |
e2079c43 RW |
1450 | /* |
1451 | * HP laptops which use a DSDT reporting as HP/SB400/10000, | |
1452 | * which includes some code which overrides all temperature | |
1453 | * trip points to 16C if the INTIN2 input of the I/O APIC | |
1454 | * is enabled. This input is incorrectly designated the | |
1455 | * ISA IRQ 0 via an interrupt source override even though | |
1456 | * it is wired to the output of the master 8259A and INTIN0 | |
ae10ccdc | 1457 | * is not connected at all. Force ignoring BIOS IRQ0 |
e2079c43 RW |
1458 | * override in that cases. |
1459 | */ | |
e84956f9 RW |
1460 | { |
1461 | .callback = dmi_ignore_irq0_timer_override, | |
1462 | .ident = "HP nx6115 laptop", | |
1463 | .matches = { | |
1464 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1465 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6115"), | |
1466 | }, | |
1467 | }, | |
e2079c43 RW |
1468 | { |
1469 | .callback = dmi_ignore_irq0_timer_override, | |
1470 | .ident = "HP NX6125 laptop", | |
1471 | .matches = { | |
1472 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1473 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6125"), | |
1474 | }, | |
1475 | }, | |
1476 | { | |
1477 | .callback = dmi_ignore_irq0_timer_override, | |
1478 | .ident = "HP NX6325 laptop", | |
1479 | .matches = { | |
1480 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1481 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6325"), | |
1482 | }, | |
1483 | }, | |
e84956f9 RW |
1484 | { |
1485 | .callback = dmi_ignore_irq0_timer_override, | |
1486 | .ident = "HP 6715b laptop", | |
1487 | .matches = { | |
1488 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1489 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"), | |
1490 | }, | |
1491 | }, | |
f6b54f08 FT |
1492 | { |
1493 | .callback = dmi_ignore_irq0_timer_override, | |
1494 | .ident = "FUJITSU SIEMENS", | |
1495 | .matches = { | |
1496 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), | |
1497 | DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"), | |
1498 | }, | |
1499 | }, | |
4be44fcd | 1500 | {} |
aea00143 AP |
1501 | }; |
1502 | ||
1da177e4 LT |
1503 | /* |
1504 | * acpi_boot_table_init() and acpi_boot_init() | |
1505 | * called from setup_arch(), always. | |
1506 | * 1. checksums all tables | |
1507 | * 2. enumerates lapics | |
1508 | * 3. enumerates io-apics | |
1509 | * | |
1510 | * acpi_table_init() is separate to allow reading SRAT without | |
1511 | * other side effects. | |
1512 | * | |
1513 | * side effects of acpi_boot_init: | |
1514 | * acpi_lapic = 1 if LAPIC found | |
1515 | * acpi_ioapic = 1 if IOAPIC found | |
1516 | * if (acpi_lapic && acpi_ioapic) smp_found_config = 1; | |
1517 | * if acpi_blacklisted() acpi_disabled = 1; | |
1518 | * acpi_irq_model=... | |
1519 | * ... | |
1da177e4 LT |
1520 | */ |
1521 | ||
8558e394 | 1522 | void __init acpi_boot_table_init(void) |
1da177e4 | 1523 | { |
aea00143 | 1524 | dmi_check_system(acpi_dmi_table); |
aea00143 | 1525 | |
1da177e4 LT |
1526 | /* |
1527 | * If acpi_disabled, bail out | |
1da177e4 | 1528 | */ |
68ca4069 | 1529 | if (acpi_disabled) |
0f61aaa4 | 1530 | return; |
1da177e4 | 1531 | |
5f3b1a8b | 1532 | /* |
1da177e4 LT |
1533 | * Initialize the ACPI boot-time table parser. |
1534 | */ | |
1a1c130a | 1535 | if (acpi_locate_initial_tables()) |
1da177e4 | 1536 | disable_acpi(); |
1a1c130a RW |
1537 | else |
1538 | acpi_reserve_initial_tables(); | |
1539 | } | |
1540 | ||
1541 | int __init early_acpi_boot_init(void) | |
1542 | { | |
1543 | if (acpi_disabled) | |
1544 | return 1; | |
1545 | ||
1546 | acpi_table_init_complete(); | |
1da177e4 | 1547 | |
5f3b1a8b | 1548 | acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf); |
1da177e4 LT |
1549 | |
1550 | /* | |
1551 | * blacklist may disable ACPI entirely | |
1552 | */ | |
8558e394 | 1553 | if (acpi_blacklisted()) { |
1da177e4 | 1554 | if (acpi_force) { |
14fad24d | 1555 | pr_warn("acpi=force override\n"); |
1da177e4 | 1556 | } else { |
14fad24d | 1557 | pr_warn("Disabling ACPI support\n"); |
1da177e4 | 1558 | disable_acpi(); |
1a1c130a | 1559 | return 1; |
1da177e4 LT |
1560 | } |
1561 | } | |
cbf9bd60 YL |
1562 | |
1563 | /* | |
1564 | * Process the Multiple APIC Description Table (MADT), if present | |
1565 | */ | |
1566 | early_acpi_process_madt(); | |
1da177e4 | 1567 | |
7486341a LA |
1568 | /* |
1569 | * Hardware-reduced ACPI mode initialization: | |
1570 | */ | |
1571 | acpi_reduced_hw_init(); | |
1572 | ||
1da177e4 LT |
1573 | return 0; |
1574 | } | |
1575 | ||
1da177e4 LT |
1576 | int __init acpi_boot_init(void) |
1577 | { | |
35af2821 AH |
1578 | /* those are executed after early-quirks are executed */ |
1579 | dmi_check_system(acpi_dmi_table_late); | |
1580 | ||
1da177e4 LT |
1581 | /* |
1582 | * If acpi_disabled, bail out | |
1da177e4 | 1583 | */ |
68ca4069 | 1584 | if (acpi_disabled) |
4be44fcd | 1585 | return 1; |
1da177e4 | 1586 | |
5f3b1a8b | 1587 | acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf); |
1da177e4 LT |
1588 | |
1589 | /* | |
1590 | * set sci_int and PM timer address | |
1591 | */ | |
ceb6c468 | 1592 | acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt); |
1da177e4 LT |
1593 | |
1594 | /* | |
1595 | * Process the Multiple APIC Description Table (MADT), if present | |
1596 | */ | |
1597 | acpi_process_madt(); | |
1598 | ||
5f3b1a8b | 1599 | acpi_table_parse(ACPI_SIG_HPET, acpi_parse_hpet); |
1ffb8d03 | 1600 | if (IS_ENABLED(CONFIG_ACPI_BGRT) && !acpi_nobgrt) |
7b0a9114 | 1601 | acpi_table_parse(ACPI_SIG_BGRT, acpi_parse_bgrt); |
1da177e4 | 1602 | |
b72d0db9 TG |
1603 | if (!acpi_noirq) |
1604 | x86_init.pci.init = pci_acpi_init; | |
1605 | ||
0231d000 PB |
1606 | /* Do not enable ACPI SPCR console by default */ |
1607 | acpi_parse_spcr(earlycon_acpi_spcr_enable, false); | |
1da177e4 LT |
1608 | return 0; |
1609 | } | |
1a3f239d RR |
1610 | |
1611 | static int __init parse_acpi(char *arg) | |
1612 | { | |
1613 | if (!arg) | |
1614 | return -EINVAL; | |
1615 | ||
1616 | /* "acpi=off" disables both ACPI table parsing and interpreter */ | |
1617 | if (strcmp(arg, "off") == 0) { | |
1618 | disable_acpi(); | |
1619 | } | |
1620 | /* acpi=force to over-ride black-list */ | |
1621 | else if (strcmp(arg, "force") == 0) { | |
1622 | acpi_force = 1; | |
1a3f239d RR |
1623 | acpi_disabled = 0; |
1624 | } | |
1625 | /* acpi=strict disables out-of-spec workarounds */ | |
1626 | else if (strcmp(arg, "strict") == 0) { | |
1627 | acpi_strict = 1; | |
1628 | } | |
237889bf ZY |
1629 | /* acpi=rsdt use RSDT instead of XSDT */ |
1630 | else if (strcmp(arg, "rsdt") == 0) { | |
fab46105 | 1631 | acpi_gbl_do_not_use_xsdt = TRUE; |
237889bf | 1632 | } |
1a3f239d RR |
1633 | /* "acpi=noirq" disables ACPI interrupt routing */ |
1634 | else if (strcmp(arg, "noirq") == 0) { | |
1635 | acpi_noirq_set(); | |
aa2110cb | 1636 | } |
d9f6e12f | 1637 | /* "acpi=copy_dsdt" copies DSDT */ |
aa2110cb LM |
1638 | else if (strcmp(arg, "copy_dsdt") == 0) { |
1639 | acpi_gbl_copy_dsdt_locally = 1; | |
9ad95879 NR |
1640 | } |
1641 | /* "acpi=nocmcff" disables FF mode for corrected errors */ | |
1642 | else if (strcmp(arg, "nocmcff") == 0) { | |
1643 | acpi_disable_cmcff = 1; | |
1a3f239d RR |
1644 | } else { |
1645 | /* Core will printk when we return error. */ | |
1646 | return -EINVAL; | |
1647 | } | |
1648 | return 0; | |
1649 | } | |
1650 | early_param("acpi", parse_acpi); | |
1651 | ||
1ffb8d03 AH |
1652 | static int __init parse_acpi_bgrt(char *arg) |
1653 | { | |
1654 | acpi_nobgrt = true; | |
1655 | return 0; | |
1656 | } | |
1657 | early_param("bgrt_disable", parse_acpi_bgrt); | |
1658 | ||
1a3f239d RR |
1659 | /* FIXME: Using pci= for an ACPI parameter is a travesty. */ |
1660 | static int __init parse_pci(char *arg) | |
1661 | { | |
1662 | if (arg && strcmp(arg, "noacpi") == 0) | |
1663 | acpi_disable_pci(); | |
1664 | return 0; | |
1665 | } | |
1666 | early_param("pci", parse_pci); | |
1667 | ||
3c999f14 YL |
1668 | int __init acpi_mps_check(void) |
1669 | { | |
1670 | #if defined(CONFIG_X86_LOCAL_APIC) && !defined(CONFIG_X86_MPPARSE) | |
1671 | /* mptable code is not built-in*/ | |
1672 | if (acpi_disabled || acpi_noirq) { | |
14fad24d | 1673 | pr_warn("MPS support code is not built-in, using acpi=off or acpi=noirq or pci=noacpi may have problem\n"); |
3c999f14 YL |
1674 | return 1; |
1675 | } | |
1676 | #endif | |
1677 | return 0; | |
1678 | } | |
1679 | ||
1a3f239d RR |
1680 | #ifdef CONFIG_X86_IO_APIC |
1681 | static int __init parse_acpi_skip_timer_override(char *arg) | |
1682 | { | |
1683 | acpi_skip_timer_override = 1; | |
1684 | return 0; | |
1685 | } | |
1686 | early_param("acpi_skip_timer_override", parse_acpi_skip_timer_override); | |
fa18f477 AK |
1687 | |
1688 | static int __init parse_acpi_use_timer_override(char *arg) | |
1689 | { | |
1690 | acpi_use_timer_override = 1; | |
1691 | return 0; | |
1692 | } | |
1693 | early_param("acpi_use_timer_override", parse_acpi_use_timer_override); | |
1a3f239d RR |
1694 | #endif /* CONFIG_X86_IO_APIC */ |
1695 | ||
1696 | static int __init setup_acpi_sci(char *s) | |
1697 | { | |
1698 | if (!s) | |
1699 | return -EINVAL; | |
1700 | if (!strcmp(s, "edge")) | |
5f3b1a8b AS |
1701 | acpi_sci_flags = ACPI_MADT_TRIGGER_EDGE | |
1702 | (acpi_sci_flags & ~ACPI_MADT_TRIGGER_MASK); | |
1a3f239d | 1703 | else if (!strcmp(s, "level")) |
5f3b1a8b AS |
1704 | acpi_sci_flags = ACPI_MADT_TRIGGER_LEVEL | |
1705 | (acpi_sci_flags & ~ACPI_MADT_TRIGGER_MASK); | |
1a3f239d | 1706 | else if (!strcmp(s, "high")) |
5f3b1a8b AS |
1707 | acpi_sci_flags = ACPI_MADT_POLARITY_ACTIVE_HIGH | |
1708 | (acpi_sci_flags & ~ACPI_MADT_POLARITY_MASK); | |
1a3f239d | 1709 | else if (!strcmp(s, "low")) |
5f3b1a8b AS |
1710 | acpi_sci_flags = ACPI_MADT_POLARITY_ACTIVE_LOW | |
1711 | (acpi_sci_flags & ~ACPI_MADT_POLARITY_MASK); | |
1a3f239d RR |
1712 | else |
1713 | return -EINVAL; | |
1714 | return 0; | |
1715 | } | |
1716 | early_param("acpi_sci", setup_acpi_sci); | |
d0a9081b AM |
1717 | |
1718 | int __acpi_acquire_global_lock(unsigned int *lock) | |
1719 | { | |
1720 | unsigned int old, new, val; | |
1721 | do { | |
1722 | old = *lock; | |
1723 | new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1)); | |
1724 | val = cmpxchg(lock, old, new); | |
1725 | } while (unlikely (val != old)); | |
ecb9c790 | 1726 | return ((new & 0x3) < 3) ? -1 : 0; |
d0a9081b AM |
1727 | } |
1728 | ||
1729 | int __acpi_release_global_lock(unsigned int *lock) | |
1730 | { | |
1731 | unsigned int old, new, val; | |
1732 | do { | |
1733 | old = *lock; | |
1734 | new = old & ~0x3; | |
1735 | val = cmpxchg(lock, old, new); | |
1736 | } while (unlikely (val != old)); | |
1737 | return old & 0x1; | |
1738 | } | |
8e30524d TR |
1739 | |
1740 | void __init arch_reserve_mem_area(acpi_physical_address addr, size_t size) | |
1741 | { | |
09821ff1 | 1742 | e820__range_add(addr, size, E820_TYPE_ACPI); |
6464d294 | 1743 | e820__update_table_print(); |
8e30524d | 1744 | } |
e7b66d16 | 1745 | |
41fa1ee9 JB |
1746 | void x86_default_set_root_pointer(u64 addr) |
1747 | { | |
1748 | boot_params.acpi_rsdp_addr = addr; | |
1749 | } | |
1750 | ||
e7b66d16 JG |
1751 | u64 x86_default_get_root_pointer(void) |
1752 | { | |
e6e094e0 | 1753 | return boot_params.acpi_rsdp_addr; |
e7b66d16 | 1754 | } |