Line data Source code
1 : /* SPDX-License-Identifier: GPL-2.0-or-later */
2 : /*
3 : * acpi.h - ACPI Interface
4 : *
5 : * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
6 : */
7 :
8 : #ifndef _LINUX_ACPI_H
9 : #define _LINUX_ACPI_H
10 :
11 : #include <linux/errno.h>
12 : #include <linux/ioport.h> /* for struct resource */
13 : #include <linux/irqdomain.h>
14 : #include <linux/resource_ext.h>
15 : #include <linux/device.h>
16 : #include <linux/property.h>
17 : #include <linux/uuid.h>
18 :
19 : #ifndef _LINUX
20 : #define _LINUX
21 : #endif
22 : #include <acpi/acpi.h>
23 :
24 : #ifdef CONFIG_ACPI
25 :
26 : #include <linux/list.h>
27 : #include <linux/mod_devicetable.h>
28 : #include <linux/dynamic_debug.h>
29 : #include <linux/module.h>
30 : #include <linux/mutex.h>
31 :
32 : #include <acpi/acpi_bus.h>
33 : #include <acpi/acpi_drivers.h>
34 : #include <acpi/acpi_numa.h>
35 : #include <acpi/acpi_io.h>
36 : #include <asm/acpi.h>
37 :
38 : static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
39 : {
40 : return adev ? adev->handle : NULL;
41 : }
42 :
43 : #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode)
44 : #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
45 : acpi_fwnode_handle(adev) : NULL)
46 : #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
47 : #define ACPI_HANDLE_FWNODE(fwnode) \
48 : acpi_device_handle(to_acpi_device_node(fwnode))
49 :
50 : static inline struct fwnode_handle *acpi_alloc_fwnode_static(void)
51 : {
52 : struct fwnode_handle *fwnode;
53 :
54 : fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL);
55 : if (!fwnode)
56 : return NULL;
57 :
58 : fwnode_init(fwnode, &acpi_static_fwnode_ops);
59 :
60 : return fwnode;
61 : }
62 :
63 : static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode)
64 : {
65 : if (WARN_ON(!is_acpi_static_node(fwnode)))
66 : return;
67 :
68 : kfree(fwnode);
69 : }
70 :
71 : /**
72 : * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
73 : * the PCI-defined class-code information
74 : *
75 : * @_cls : the class, subclass, prog-if triple for this device
76 : * @_msk : the class mask for this device
77 : *
78 : * This macro is used to create a struct acpi_device_id that matches a
79 : * specific PCI class. The .id and .driver_data fields will be left
80 : * initialized with the default value.
81 : */
82 : #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
83 :
84 : static inline bool has_acpi_companion(struct device *dev)
85 : {
86 : return is_acpi_device_node(dev->fwnode);
87 : }
88 :
89 : static inline void acpi_preset_companion(struct device *dev,
90 : struct acpi_device *parent, u64 addr)
91 : {
92 : ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false));
93 : }
94 :
95 : static inline const char *acpi_dev_name(struct acpi_device *adev)
96 : {
97 : return dev_name(&adev->dev);
98 : }
99 :
100 : struct device *acpi_get_first_physical_node(struct acpi_device *adev);
101 :
102 : enum acpi_irq_model_id {
103 : ACPI_IRQ_MODEL_PIC = 0,
104 : ACPI_IRQ_MODEL_IOAPIC,
105 : ACPI_IRQ_MODEL_IOSAPIC,
106 : ACPI_IRQ_MODEL_PLATFORM,
107 : ACPI_IRQ_MODEL_GIC,
108 : ACPI_IRQ_MODEL_COUNT
109 : };
110 :
111 : extern enum acpi_irq_model_id acpi_irq_model;
112 :
113 : enum acpi_interrupt_id {
114 : ACPI_INTERRUPT_PMI = 1,
115 : ACPI_INTERRUPT_INIT,
116 : ACPI_INTERRUPT_CPEI,
117 : ACPI_INTERRUPT_COUNT
118 : };
119 :
120 : #define ACPI_SPACE_MEM 0
121 :
122 : enum acpi_address_range_id {
123 : ACPI_ADDRESS_RANGE_MEMORY = 1,
124 : ACPI_ADDRESS_RANGE_RESERVED = 2,
125 : ACPI_ADDRESS_RANGE_ACPI = 3,
126 : ACPI_ADDRESS_RANGE_NVS = 4,
127 : ACPI_ADDRESS_RANGE_COUNT
128 : };
129 :
130 :
131 : /* Table Handlers */
132 : union acpi_subtable_headers {
133 : struct acpi_subtable_header common;
134 : struct acpi_hmat_structure hmat;
135 : };
136 :
137 : typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
138 :
139 : typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header,
140 : const unsigned long end);
141 :
142 : /* Debugger support */
143 :
144 : struct acpi_debugger_ops {
145 : int (*create_thread)(acpi_osd_exec_callback function, void *context);
146 : ssize_t (*write_log)(const char *msg);
147 : ssize_t (*read_cmd)(char *buffer, size_t length);
148 : int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
149 : int (*notify_command_complete)(void);
150 : };
151 :
152 : struct acpi_debugger {
153 : const struct acpi_debugger_ops *ops;
154 : struct module *owner;
155 : struct mutex lock;
156 : };
157 :
158 : #ifdef CONFIG_ACPI_DEBUGGER
159 : int __init acpi_debugger_init(void);
160 : int acpi_register_debugger(struct module *owner,
161 : const struct acpi_debugger_ops *ops);
162 : void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
163 : int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
164 : ssize_t acpi_debugger_write_log(const char *msg);
165 : ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
166 : int acpi_debugger_wait_command_ready(void);
167 : int acpi_debugger_notify_command_complete(void);
168 : #else
169 : static inline int acpi_debugger_init(void)
170 : {
171 : return -ENODEV;
172 : }
173 :
174 : static inline int acpi_register_debugger(struct module *owner,
175 : const struct acpi_debugger_ops *ops)
176 : {
177 : return -ENODEV;
178 : }
179 :
180 : static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
181 : {
182 : }
183 :
184 : static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
185 : void *context)
186 : {
187 : return -ENODEV;
188 : }
189 :
190 : static inline int acpi_debugger_write_log(const char *msg)
191 : {
192 : return -ENODEV;
193 : }
194 :
195 : static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
196 : {
197 : return -ENODEV;
198 : }
199 :
200 : static inline int acpi_debugger_wait_command_ready(void)
201 : {
202 : return -ENODEV;
203 : }
204 :
205 : static inline int acpi_debugger_notify_command_complete(void)
206 : {
207 : return -ENODEV;
208 : }
209 : #endif
210 :
211 : #define BAD_MADT_ENTRY(entry, end) ( \
212 : (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
213 : ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
214 :
215 : struct acpi_subtable_proc {
216 : int id;
217 : acpi_tbl_entry_handler handler;
218 : int count;
219 : };
220 :
221 : void __iomem *__acpi_map_table(unsigned long phys, unsigned long size);
222 : void __acpi_unmap_table(void __iomem *map, unsigned long size);
223 : int early_acpi_boot_init(void);
224 : int acpi_boot_init (void);
225 : void acpi_boot_table_init (void);
226 : int acpi_mps_check (void);
227 : int acpi_numa_init (void);
228 :
229 : int acpi_table_init (void);
230 : int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
231 : int __init acpi_table_parse_entries(char *id, unsigned long table_size,
232 : int entry_id,
233 : acpi_tbl_entry_handler handler,
234 : unsigned int max_entries);
235 : int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
236 : struct acpi_subtable_proc *proc, int proc_num,
237 : unsigned int max_entries);
238 : int acpi_table_parse_madt(enum acpi_madt_type id,
239 : acpi_tbl_entry_handler handler,
240 : unsigned int max_entries);
241 : int acpi_parse_mcfg (struct acpi_table_header *header);
242 : void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
243 :
244 : /* the following numa functions are architecture-dependent */
245 : void acpi_numa_slit_init (struct acpi_table_slit *slit);
246 :
247 : #if defined(CONFIG_X86) || defined(CONFIG_IA64)
248 : void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
249 : #else
250 : static inline void
251 : acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
252 : #endif
253 :
254 : void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
255 :
256 : #ifdef CONFIG_ARM64
257 : void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
258 : #else
259 : static inline void
260 : acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
261 : #endif
262 :
263 : int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
264 :
265 : #ifndef PHYS_CPUID_INVALID
266 : typedef u32 phys_cpuid_t;
267 : #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
268 : #endif
269 :
270 : static inline bool invalid_logical_cpuid(u32 cpuid)
271 : {
272 : return (int)cpuid < 0;
273 : }
274 :
275 : static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
276 : {
277 : return phys_id == PHYS_CPUID_INVALID;
278 : }
279 :
280 : /* Validate the processor object's proc_id */
281 : bool acpi_duplicate_processor_id(int proc_id);
282 : /* Processor _CTS control */
283 : struct acpi_processor_power;
284 :
285 : #ifdef CONFIG_ACPI_PROCESSOR_CSTATE
286 : bool acpi_processor_claim_cst_control(void);
287 : int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
288 : struct acpi_processor_power *info);
289 : #else
290 : static inline bool acpi_processor_claim_cst_control(void) { return false; }
291 : static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
292 : struct acpi_processor_power *info)
293 : {
294 : return -ENODEV;
295 : }
296 : #endif
297 :
298 : #ifdef CONFIG_ACPI_HOTPLUG_CPU
299 : /* Arch dependent functions for cpu hotplug support */
300 : int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
301 : int *pcpu);
302 : int acpi_unmap_cpu(int cpu);
303 : #endif /* CONFIG_ACPI_HOTPLUG_CPU */
304 :
305 : #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
306 : int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
307 : #endif
308 :
309 : int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
310 : int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
311 : int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
312 : void acpi_irq_stats_init(void);
313 : extern u32 acpi_irq_handled;
314 : extern u32 acpi_irq_not_handled;
315 : extern unsigned int acpi_sci_irq;
316 : extern bool acpi_no_s5;
317 : #define INVALID_ACPI_IRQ ((unsigned)-1)
318 : static inline bool acpi_sci_irq_valid(void)
319 : {
320 : return acpi_sci_irq != INVALID_ACPI_IRQ;
321 : }
322 :
323 : extern int sbf_port;
324 : extern unsigned long acpi_realmode_flags;
325 :
326 : int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
327 : int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
328 : int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
329 :
330 : void acpi_set_irq_model(enum acpi_irq_model_id model,
331 : struct fwnode_handle *fwnode);
332 :
333 : struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags,
334 : unsigned int size,
335 : struct fwnode_handle *fwnode,
336 : const struct irq_domain_ops *ops,
337 : void *host_data);
338 :
339 : #ifdef CONFIG_X86_IO_APIC
340 : extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
341 : #else
342 : static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
343 : {
344 : return -1;
345 : }
346 : #endif
347 : /*
348 : * This function undoes the effect of one call to acpi_register_gsi().
349 : * If this matches the last registration, any IRQ resources for gsi
350 : * are freed.
351 : */
352 : void acpi_unregister_gsi (u32 gsi);
353 :
354 : struct pci_dev;
355 :
356 : int acpi_pci_irq_enable (struct pci_dev *dev);
357 : void acpi_penalize_isa_irq(int irq, int active);
358 : bool acpi_isa_irq_available(int irq);
359 : #ifdef CONFIG_PCI
360 : void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
361 : #else
362 : static inline void acpi_penalize_sci_irq(int irq, int trigger,
363 : int polarity)
364 : {
365 : }
366 : #endif
367 : void acpi_pci_irq_disable (struct pci_dev *dev);
368 :
369 : extern int ec_read(u8 addr, u8 *val);
370 : extern int ec_write(u8 addr, u8 val);
371 : extern int ec_transaction(u8 command,
372 : const u8 *wdata, unsigned wdata_len,
373 : u8 *rdata, unsigned rdata_len);
374 : extern acpi_handle ec_get_handle(void);
375 :
376 : extern bool acpi_is_pnp_device(struct acpi_device *);
377 :
378 : #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
379 :
380 : typedef void (*wmi_notify_handler) (u32 value, void *context);
381 :
382 : extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
383 : u32 method_id,
384 : const struct acpi_buffer *in,
385 : struct acpi_buffer *out);
386 : extern acpi_status wmi_query_block(const char *guid, u8 instance,
387 : struct acpi_buffer *out);
388 : extern acpi_status wmi_set_block(const char *guid, u8 instance,
389 : const struct acpi_buffer *in);
390 : extern acpi_status wmi_install_notify_handler(const char *guid,
391 : wmi_notify_handler handler, void *data);
392 : extern acpi_status wmi_remove_notify_handler(const char *guid);
393 : extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
394 : extern bool wmi_has_guid(const char *guid);
395 : extern char *wmi_get_acpi_device_uid(const char *guid);
396 :
397 : #endif /* CONFIG_ACPI_WMI */
398 :
399 : #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
400 : #define ACPI_VIDEO_DEVICE_POSTING 0x0002
401 : #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
402 : #define ACPI_VIDEO_BACKLIGHT 0x0008
403 : #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
404 : #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
405 : #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
406 : #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
407 : #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
408 : #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
409 : #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
410 : #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
411 :
412 : extern char acpi_video_backlight_string[];
413 : extern long acpi_is_video_device(acpi_handle handle);
414 : extern int acpi_blacklisted(void);
415 : extern void acpi_osi_setup(char *str);
416 : extern bool acpi_osi_is_win8(void);
417 :
418 : #ifdef CONFIG_ACPI_NUMA
419 : int acpi_map_pxm_to_node(int pxm);
420 : int acpi_get_node(acpi_handle handle);
421 :
422 : /**
423 : * pxm_to_online_node - Map proximity ID to online node
424 : * @pxm: ACPI proximity ID
425 : *
426 : * This is similar to pxm_to_node(), but always returns an online
427 : * node. When the mapped node from a given proximity ID is offline, it
428 : * looks up the node distance table and returns the nearest online node.
429 : *
430 : * ACPI device drivers, which are called after the NUMA initialization has
431 : * completed in the kernel, can call this interface to obtain their device
432 : * NUMA topology from ACPI tables. Such drivers do not have to deal with
433 : * offline nodes. A node may be offline when SRAT memory entry does not exist,
434 : * or NUMA is disabled, ex. "numa=off" on x86.
435 : */
436 : static inline int pxm_to_online_node(int pxm)
437 : {
438 : int node = pxm_to_node(pxm);
439 :
440 : return numa_map_to_online_node(node);
441 : }
442 : #else
443 : static inline int pxm_to_online_node(int pxm)
444 : {
445 : return 0;
446 : }
447 : static inline int acpi_map_pxm_to_node(int pxm)
448 : {
449 : return 0;
450 : }
451 : static inline int acpi_get_node(acpi_handle handle)
452 : {
453 : return 0;
454 : }
455 : #endif
456 : extern int acpi_paddr_to_node(u64 start_addr, u64 size);
457 :
458 : extern int pnpacpi_disabled;
459 :
460 : #define PXM_INVAL (-1)
461 :
462 : bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
463 : bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
464 : bool acpi_dev_resource_address_space(struct acpi_resource *ares,
465 : struct resource_win *win);
466 : bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
467 : struct resource_win *win);
468 : unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
469 : unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
470 : bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
471 : struct resource *res);
472 :
473 : void acpi_dev_free_resource_list(struct list_head *list);
474 : int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
475 : int (*preproc)(struct acpi_resource *, void *),
476 : void *preproc_data);
477 : int acpi_dev_get_dma_resources(struct acpi_device *adev,
478 : struct list_head *list);
479 : int acpi_dev_filter_resource_type(struct acpi_resource *ares,
480 : unsigned long types);
481 :
482 : static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
483 : void *arg)
484 : {
485 : return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
486 : }
487 :
488 : struct acpi_device *acpi_resource_consumer(struct resource *res);
489 :
490 : int acpi_check_resource_conflict(const struct resource *res);
491 :
492 : int acpi_check_region(resource_size_t start, resource_size_t n,
493 : const char *name);
494 :
495 : acpi_status acpi_release_memory(acpi_handle handle, struct resource *res,
496 : u32 level);
497 :
498 : int acpi_resources_are_enforced(void);
499 :
500 : #ifdef CONFIG_HIBERNATION
501 : void __init acpi_no_s4_hw_signature(void);
502 : #endif
503 :
504 : #ifdef CONFIG_PM_SLEEP
505 : void __init acpi_old_suspend_ordering(void);
506 : void __init acpi_nvs_nosave(void);
507 : void __init acpi_nvs_nosave_s3(void);
508 : void __init acpi_sleep_no_blacklist(void);
509 : #endif /* CONFIG_PM_SLEEP */
510 :
511 : int acpi_register_wakeup_handler(
512 : int wake_irq, bool (*wakeup)(void *context), void *context);
513 : void acpi_unregister_wakeup_handler(
514 : bool (*wakeup)(void *context), void *context);
515 :
516 : struct acpi_osc_context {
517 : char *uuid_str; /* UUID string */
518 : int rev;
519 : struct acpi_buffer cap; /* list of DWORD capabilities */
520 : struct acpi_buffer ret; /* free by caller if success */
521 : };
522 :
523 : acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
524 :
525 : /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
526 : #define OSC_QUERY_DWORD 0 /* DWORD 1 */
527 : #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
528 : #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
529 :
530 : /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
531 : #define OSC_QUERY_ENABLE 0x00000001 /* input */
532 : #define OSC_REQUEST_ERROR 0x00000002 /* return */
533 : #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
534 : #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
535 : #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
536 :
537 : /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
538 : #define OSC_SB_PAD_SUPPORT 0x00000001
539 : #define OSC_SB_PPC_OST_SUPPORT 0x00000002
540 : #define OSC_SB_PR3_SUPPORT 0x00000004
541 : #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
542 : #define OSC_SB_APEI_SUPPORT 0x00000010
543 : #define OSC_SB_CPC_SUPPORT 0x00000020
544 : #define OSC_SB_CPCV2_SUPPORT 0x00000040
545 : #define OSC_SB_PCLPI_SUPPORT 0x00000080
546 : #define OSC_SB_OSLPI_SUPPORT 0x00000100
547 : #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
548 : #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000
549 : #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000
550 :
551 : extern bool osc_sb_apei_support_acked;
552 : extern bool osc_pc_lpi_support_confirmed;
553 : extern bool osc_sb_native_usb4_support_confirmed;
554 :
555 : /* USB4 Capabilities */
556 : #define OSC_USB_USB3_TUNNELING 0x00000001
557 : #define OSC_USB_DP_TUNNELING 0x00000002
558 : #define OSC_USB_PCIE_TUNNELING 0x00000004
559 : #define OSC_USB_XDOMAIN 0x00000008
560 :
561 : extern u32 osc_sb_native_usb4_control;
562 :
563 : /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
564 : #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
565 : #define OSC_PCI_ASPM_SUPPORT 0x00000002
566 : #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
567 : #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
568 : #define OSC_PCI_MSI_SUPPORT 0x00000010
569 : #define OSC_PCI_EDR_SUPPORT 0x00000080
570 : #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100
571 : #define OSC_PCI_SUPPORT_MASKS 0x0000019f
572 :
573 : /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
574 : #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
575 : #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
576 : #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
577 : #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
578 : #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
579 : #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020
580 : #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080
581 : #define OSC_PCI_CONTROL_MASKS 0x000000bf
582 :
583 : #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
584 : #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
585 : #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
586 : #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
587 : #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
588 : #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
589 : #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
590 : #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
591 : #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
592 : #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
593 :
594 : /* Enable _OST when all relevant hotplug operations are enabled */
595 : #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
596 : defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
597 : defined(CONFIG_ACPI_CONTAINER)
598 : #define ACPI_HOTPLUG_OST
599 : #endif
600 :
601 : /* _OST Source Event Code (OSPM Action) */
602 : #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
603 : #define ACPI_OST_EC_OSPM_EJECT 0x103
604 : #define ACPI_OST_EC_OSPM_INSERTION 0x200
605 :
606 : /* _OST General Processing Status Code */
607 : #define ACPI_OST_SC_SUCCESS 0x0
608 : #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
609 : #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
610 :
611 : /* _OST OS Shutdown Processing (0x100) Status Code */
612 : #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
613 : #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
614 : #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
615 : #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
616 :
617 : /* _OST Ejection Request (0x3, 0x103) Status Code */
618 : #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
619 : #define ACPI_OST_SC_DEVICE_IN_USE 0x81
620 : #define ACPI_OST_SC_DEVICE_BUSY 0x82
621 : #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
622 : #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
623 :
624 : /* _OST Insertion Request (0x200) Status Code */
625 : #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
626 : #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
627 : #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
628 :
629 : enum acpi_predicate {
630 : all_versions,
631 : less_than_or_equal,
632 : equal,
633 : greater_than_or_equal,
634 : };
635 :
636 : /* Table must be terminted by a NULL entry */
637 : struct acpi_platform_list {
638 : char oem_id[ACPI_OEM_ID_SIZE+1];
639 : char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
640 : u32 oem_revision;
641 : char *table;
642 : enum acpi_predicate pred;
643 : char *reason;
644 : u32 data;
645 : };
646 : int acpi_match_platform_list(const struct acpi_platform_list *plat);
647 :
648 : extern void acpi_early_init(void);
649 : extern void acpi_subsystem_init(void);
650 : extern void arch_post_acpi_subsys_init(void);
651 :
652 : extern int acpi_nvs_register(__u64 start, __u64 size);
653 :
654 : extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
655 : void *data);
656 :
657 : const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
658 : const struct device *dev);
659 :
660 : const void *acpi_device_get_match_data(const struct device *dev);
661 : extern bool acpi_driver_match_device(struct device *dev,
662 : const struct device_driver *drv);
663 : int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
664 : int acpi_device_modalias(struct device *, char *, int);
665 : void acpi_walk_dep_device_list(acpi_handle handle);
666 :
667 : struct platform_device *acpi_create_platform_device(struct acpi_device *,
668 : struct property_entry *);
669 : #define ACPI_PTR(_ptr) (_ptr)
670 :
671 : static inline void acpi_device_set_enumerated(struct acpi_device *adev)
672 : {
673 : adev->flags.visited = true;
674 : }
675 :
676 : static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
677 : {
678 : adev->flags.visited = false;
679 : }
680 :
681 : enum acpi_reconfig_event {
682 : ACPI_RECONFIG_DEVICE_ADD = 0,
683 : ACPI_RECONFIG_DEVICE_REMOVE,
684 : };
685 :
686 : int acpi_reconfig_notifier_register(struct notifier_block *nb);
687 : int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
688 :
689 : #ifdef CONFIG_ACPI_GTDT
690 : int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
691 : int acpi_gtdt_map_ppi(int type);
692 : bool acpi_gtdt_c3stop(int type);
693 : int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
694 : #endif
695 :
696 : #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER
697 : static inline void acpi_arch_set_root_pointer(u64 addr)
698 : {
699 : }
700 : #endif
701 :
702 : #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
703 : static inline u64 acpi_arch_get_root_pointer(void)
704 : {
705 : return 0;
706 : }
707 : #endif
708 :
709 : #else /* !CONFIG_ACPI */
710 :
711 : #define acpi_disabled 1
712 :
713 : #define ACPI_COMPANION(dev) (NULL)
714 : #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
715 : #define ACPI_HANDLE(dev) (NULL)
716 : #define ACPI_HANDLE_FWNODE(fwnode) (NULL)
717 : #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
718 :
719 : #include <acpi/acpi_numa.h>
720 :
721 : struct fwnode_handle;
722 :
723 : static inline bool acpi_dev_found(const char *hid)
724 : {
725 : return false;
726 : }
727 :
728 : static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
729 : {
730 : return false;
731 : }
732 :
733 : struct acpi_device;
734 :
735 : static inline bool
736 : acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2)
737 : {
738 : return false;
739 : }
740 :
741 : static inline struct acpi_device *
742 : acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
743 : {
744 : return NULL;
745 : }
746 :
747 : static inline void acpi_dev_put(struct acpi_device *adev) {}
748 :
749 : static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
750 : {
751 : return false;
752 : }
753 :
754 0 : static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode)
755 : {
756 0 : return false;
757 : }
758 :
759 : static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
760 : {
761 : return NULL;
762 : }
763 :
764 : static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode)
765 : {
766 : return false;
767 : }
768 :
769 : static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
770 : {
771 : return NULL;
772 : }
773 :
774 : static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
775 : const char *name)
776 : {
777 : return false;
778 : }
779 :
780 : static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
781 : {
782 : return NULL;
783 : }
784 :
785 3 : static inline bool has_acpi_companion(struct device *dev)
786 : {
787 3 : return false;
788 : }
789 :
790 : static inline void acpi_preset_companion(struct device *dev,
791 : struct acpi_device *parent, u64 addr)
792 : {
793 : }
794 :
795 : static inline const char *acpi_dev_name(struct acpi_device *adev)
796 : {
797 : return NULL;
798 : }
799 :
800 : static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
801 : {
802 : return NULL;
803 : }
804 :
805 : static inline void acpi_early_init(void) { }
806 : static inline void acpi_subsystem_init(void) { }
807 :
808 1 : static inline int early_acpi_boot_init(void)
809 : {
810 1 : return 0;
811 : }
812 1 : static inline int acpi_boot_init(void)
813 : {
814 1 : return 0;
815 : }
816 :
817 1 : static inline void acpi_boot_table_init(void)
818 : {
819 1 : return;
820 : }
821 :
822 1 : static inline int acpi_mps_check(void)
823 : {
824 1 : return 0;
825 : }
826 :
827 : static inline int acpi_check_resource_conflict(struct resource *res)
828 : {
829 : return 0;
830 : }
831 :
832 : static inline int acpi_check_region(resource_size_t start, resource_size_t n,
833 : const char *name)
834 : {
835 : return 0;
836 : }
837 :
838 : struct acpi_table_header;
839 : static inline int acpi_table_parse(char *id,
840 : int (*handler)(struct acpi_table_header *))
841 : {
842 : return -ENODEV;
843 : }
844 :
845 : static inline int acpi_nvs_register(__u64 start, __u64 size)
846 : {
847 : return 0;
848 : }
849 :
850 : static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
851 : void *data)
852 : {
853 : return 0;
854 : }
855 :
856 : struct acpi_device_id;
857 :
858 : static inline const struct acpi_device_id *acpi_match_device(
859 : const struct acpi_device_id *ids, const struct device *dev)
860 : {
861 : return NULL;
862 : }
863 :
864 : static inline const void *acpi_device_get_match_data(const struct device *dev)
865 : {
866 : return NULL;
867 : }
868 :
869 20 : static inline bool acpi_driver_match_device(struct device *dev,
870 : const struct device_driver *drv)
871 : {
872 20 : return false;
873 : }
874 :
875 : static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
876 : const guid_t *guid,
877 : u64 rev, u64 func,
878 : union acpi_object *argv4)
879 : {
880 : return NULL;
881 : }
882 :
883 31 : static inline int acpi_device_uevent_modalias(struct device *dev,
884 : struct kobj_uevent_env *env)
885 : {
886 31 : return -ENODEV;
887 : }
888 :
889 0 : static inline int acpi_device_modalias(struct device *dev,
890 : char *buf, int size)
891 : {
892 0 : return -ENODEV;
893 : }
894 :
895 : static inline struct platform_device *
896 : acpi_create_platform_device(struct acpi_device *adev,
897 : struct property_entry *properties)
898 : {
899 : return NULL;
900 : }
901 :
902 0 : static inline bool acpi_dma_supported(struct acpi_device *adev)
903 : {
904 0 : return false;
905 : }
906 :
907 0 : static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
908 : {
909 0 : return DEV_DMA_NOT_SUPPORTED;
910 : }
911 :
912 : static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr,
913 : u64 *offset, u64 *size)
914 : {
915 : return -ENODEV;
916 : }
917 :
918 : static inline int acpi_dma_configure(struct device *dev,
919 : enum dev_dma_attr attr)
920 : {
921 : return 0;
922 : }
923 :
924 : static inline int acpi_dma_configure_id(struct device *dev,
925 : enum dev_dma_attr attr,
926 : const u32 *input_id)
927 : {
928 : return 0;
929 : }
930 :
931 : #define ACPI_PTR(_ptr) (NULL)
932 :
933 : static inline void acpi_device_set_enumerated(struct acpi_device *adev)
934 : {
935 : }
936 :
937 : static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
938 : {
939 : }
940 :
941 : static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
942 : {
943 : return -EINVAL;
944 : }
945 :
946 : static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
947 : {
948 : return -EINVAL;
949 : }
950 :
951 : static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
952 : {
953 : return NULL;
954 : }
955 :
956 : #endif /* !CONFIG_ACPI */
957 :
958 : #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
959 : int acpi_ioapic_add(acpi_handle root);
960 : #else
961 : static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
962 : #endif
963 :
964 : #ifdef CONFIG_ACPI
965 : void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
966 : u32 pm1a_ctrl, u32 pm1b_ctrl));
967 :
968 : acpi_status acpi_os_prepare_sleep(u8 sleep_state,
969 : u32 pm1a_control, u32 pm1b_control);
970 :
971 : void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
972 : u32 val_a, u32 val_b));
973 :
974 : acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
975 : u32 val_a, u32 val_b);
976 :
977 : #ifndef CONFIG_IA64
978 : void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
979 : #else
980 : static inline void arch_reserve_mem_area(acpi_physical_address addr,
981 : size_t size)
982 : {
983 : }
984 : #endif /* CONFIG_X86 */
985 : #else
986 : #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
987 : #endif
988 :
989 : #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
990 : int acpi_dev_suspend(struct device *dev, bool wakeup);
991 : int acpi_dev_resume(struct device *dev);
992 : int acpi_subsys_runtime_suspend(struct device *dev);
993 : int acpi_subsys_runtime_resume(struct device *dev);
994 : int acpi_dev_pm_attach(struct device *dev, bool power_on);
995 : #else
996 : static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
997 : static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
998 : static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
999 : {
1000 : return 0;
1001 : }
1002 : #endif
1003 :
1004 : #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
1005 : int acpi_subsys_prepare(struct device *dev);
1006 : void acpi_subsys_complete(struct device *dev);
1007 : int acpi_subsys_suspend_late(struct device *dev);
1008 : int acpi_subsys_suspend_noirq(struct device *dev);
1009 : int acpi_subsys_suspend(struct device *dev);
1010 : int acpi_subsys_freeze(struct device *dev);
1011 : int acpi_subsys_poweroff(struct device *dev);
1012 : void acpi_ec_mark_gpe_for_wake(void);
1013 : void acpi_ec_set_gpe_wake_mask(u8 action);
1014 : #else
1015 : static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
1016 : static inline void acpi_subsys_complete(struct device *dev) {}
1017 : static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
1018 : static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
1019 : static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
1020 : static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
1021 : static inline int acpi_subsys_poweroff(struct device *dev) { return 0; }
1022 : static inline void acpi_ec_mark_gpe_for_wake(void) {}
1023 : static inline void acpi_ec_set_gpe_wake_mask(u8 action) {}
1024 : #endif
1025 :
1026 : #ifdef CONFIG_ACPI
1027 : __printf(3, 4)
1028 : void acpi_handle_printk(const char *level, acpi_handle handle,
1029 : const char *fmt, ...);
1030 : #else /* !CONFIG_ACPI */
1031 : static inline __printf(3, 4) void
1032 : acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
1033 : #endif /* !CONFIG_ACPI */
1034 :
1035 : #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
1036 : __printf(3, 4)
1037 : void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
1038 : #endif
1039 :
1040 : /*
1041 : * acpi_handle_<level>: Print message with ACPI prefix and object path
1042 : *
1043 : * These interfaces acquire the global namespace mutex to obtain an object
1044 : * path. In interrupt context, it shows the object path as <n/a>.
1045 : */
1046 : #define acpi_handle_emerg(handle, fmt, ...) \
1047 : acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
1048 : #define acpi_handle_alert(handle, fmt, ...) \
1049 : acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
1050 : #define acpi_handle_crit(handle, fmt, ...) \
1051 : acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
1052 : #define acpi_handle_err(handle, fmt, ...) \
1053 : acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
1054 : #define acpi_handle_warn(handle, fmt, ...) \
1055 : acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
1056 : #define acpi_handle_notice(handle, fmt, ...) \
1057 : acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
1058 : #define acpi_handle_info(handle, fmt, ...) \
1059 : acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
1060 :
1061 : #if defined(DEBUG)
1062 : #define acpi_handle_debug(handle, fmt, ...) \
1063 : acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
1064 : #else
1065 : #if defined(CONFIG_DYNAMIC_DEBUG)
1066 : #define acpi_handle_debug(handle, fmt, ...) \
1067 : _dynamic_func_call(fmt, __acpi_handle_debug, \
1068 : handle, pr_fmt(fmt), ##__VA_ARGS__)
1069 : #else
1070 : #define acpi_handle_debug(handle, fmt, ...) \
1071 : ({ \
1072 : if (0) \
1073 : acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
1074 : 0; \
1075 : })
1076 : #endif
1077 : #endif
1078 :
1079 : #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1080 : bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1081 : struct acpi_resource_gpio **agpio);
1082 : int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index);
1083 : #else
1084 : static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1085 : struct acpi_resource_gpio **agpio)
1086 : {
1087 : return false;
1088 : }
1089 : static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev,
1090 : const char *name, int index)
1091 : {
1092 : return -ENXIO;
1093 : }
1094 : #endif
1095 :
1096 : static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1097 : {
1098 : return acpi_dev_gpio_irq_get_by(adev, NULL, index);
1099 : }
1100 :
1101 : /* Device properties */
1102 :
1103 : #ifdef CONFIG_ACPI
1104 : int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1105 : acpi_object_type type, const union acpi_object **obj);
1106 : int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1107 : const char *name, size_t index, size_t num_args,
1108 : struct fwnode_reference_args *args);
1109 :
1110 : static inline int acpi_node_get_property_reference(
1111 : const struct fwnode_handle *fwnode,
1112 : const char *name, size_t index,
1113 : struct fwnode_reference_args *args)
1114 : {
1115 : return __acpi_node_get_property_reference(fwnode, name, index,
1116 : NR_FWNODE_REFERENCE_ARGS, args);
1117 : }
1118 :
1119 : static inline bool acpi_dev_has_props(const struct acpi_device *adev)
1120 : {
1121 : return !list_empty(&adev->data.properties);
1122 : }
1123 :
1124 : struct acpi_device_properties *
1125 : acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid,
1126 : const union acpi_object *properties);
1127 :
1128 : int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1129 : void **valptr);
1130 :
1131 : struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1132 : struct fwnode_handle *child);
1133 : struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode);
1134 :
1135 : struct acpi_probe_entry;
1136 : typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1137 : struct acpi_probe_entry *);
1138 :
1139 : #define ACPI_TABLE_ID_LEN 5
1140 :
1141 : /**
1142 : * struct acpi_probe_entry - boot-time probing entry
1143 : * @id: ACPI table name
1144 : * @type: Optional subtable type to match
1145 : * (if @id contains subtables)
1146 : * @subtable_valid: Optional callback to check the validity of
1147 : * the subtable
1148 : * @probe_table: Callback to the driver being probed when table
1149 : * match is successful
1150 : * @probe_subtbl: Callback to the driver being probed when table and
1151 : * subtable match (and optional callback is successful)
1152 : * @driver_data: Sideband data provided back to the driver
1153 : */
1154 : struct acpi_probe_entry {
1155 : __u8 id[ACPI_TABLE_ID_LEN];
1156 : __u8 type;
1157 : acpi_probe_entry_validate_subtbl subtable_valid;
1158 : union {
1159 : acpi_tbl_table_handler probe_table;
1160 : acpi_tbl_entry_handler probe_subtbl;
1161 : };
1162 : kernel_ulong_t driver_data;
1163 : };
1164 :
1165 : #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \
1166 : valid, data, fn) \
1167 : static const struct acpi_probe_entry __acpi_probe_##name \
1168 : __used __section("__" #table "_acpi_probe_table") = { \
1169 : .id = table_id, \
1170 : .type = subtable, \
1171 : .subtable_valid = valid, \
1172 : .probe_table = fn, \
1173 : .driver_data = data, \
1174 : }
1175 :
1176 : #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \
1177 : subtable, valid, data, fn) \
1178 : static const struct acpi_probe_entry __acpi_probe_##name \
1179 : __used __section("__" #table "_acpi_probe_table") = { \
1180 : .id = table_id, \
1181 : .type = subtable, \
1182 : .subtable_valid = valid, \
1183 : .probe_subtbl = fn, \
1184 : .driver_data = data, \
1185 : }
1186 :
1187 : #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1188 : #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1189 :
1190 : int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1191 :
1192 : #define acpi_probe_device_table(t) \
1193 : ({ \
1194 : extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1195 : ACPI_PROBE_TABLE_END(t); \
1196 : __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1197 : (&ACPI_PROBE_TABLE_END(t) - \
1198 : &ACPI_PROBE_TABLE(t))); \
1199 : })
1200 : #else
1201 : static inline int acpi_dev_get_property(struct acpi_device *adev,
1202 : const char *name, acpi_object_type type,
1203 : const union acpi_object **obj)
1204 : {
1205 : return -ENXIO;
1206 : }
1207 :
1208 : static inline int
1209 : __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1210 : const char *name, size_t index, size_t num_args,
1211 : struct fwnode_reference_args *args)
1212 : {
1213 : return -ENXIO;
1214 : }
1215 :
1216 : static inline int
1217 : acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1218 : const char *name, size_t index,
1219 : struct fwnode_reference_args *args)
1220 : {
1221 : return -ENXIO;
1222 : }
1223 :
1224 : static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1225 : const char *propname,
1226 : void **valptr)
1227 : {
1228 : return -ENXIO;
1229 : }
1230 :
1231 : static inline struct fwnode_handle *
1232 : acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1233 : struct fwnode_handle *child)
1234 : {
1235 : return NULL;
1236 : }
1237 :
1238 : static inline struct fwnode_handle *
1239 : acpi_node_get_parent(const struct fwnode_handle *fwnode)
1240 : {
1241 : return NULL;
1242 : }
1243 :
1244 : static inline struct fwnode_handle *
1245 : acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1246 : struct fwnode_handle *prev)
1247 : {
1248 : return ERR_PTR(-ENXIO);
1249 : }
1250 :
1251 : static inline int
1252 : acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1253 : struct fwnode_handle **remote,
1254 : struct fwnode_handle **port,
1255 : struct fwnode_handle **endpoint)
1256 : {
1257 : return -ENXIO;
1258 : }
1259 :
1260 : #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1261 : static const void * __acpi_table_##name[] \
1262 : __attribute__((unused)) \
1263 : = { (void *) table_id, \
1264 : (void *) subtable, \
1265 : (void *) valid, \
1266 : (void *) fn, \
1267 : (void *) data }
1268 :
1269 : #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1270 : #endif
1271 :
1272 : #ifdef CONFIG_ACPI_TABLE_UPGRADE
1273 : void acpi_table_upgrade(void);
1274 : #else
1275 1 : static inline void acpi_table_upgrade(void) { }
1276 : #endif
1277 :
1278 : #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1279 : extern bool acpi_has_watchdog(void);
1280 : #else
1281 : static inline bool acpi_has_watchdog(void) { return false; }
1282 : #endif
1283 :
1284 : #ifdef CONFIG_ACPI_SPCR_TABLE
1285 : extern bool qdf2400_e44_present;
1286 : int acpi_parse_spcr(bool enable_earlycon, bool enable_console);
1287 : #else
1288 : static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console)
1289 : {
1290 : return 0;
1291 : }
1292 : #endif
1293 :
1294 : #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1295 : int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1296 : #else
1297 : static inline
1298 0 : int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1299 : {
1300 0 : return -EINVAL;
1301 : }
1302 : #endif
1303 :
1304 : #ifdef CONFIG_ACPI_LPIT
1305 : int lpit_read_residency_count_address(u64 *address);
1306 : #else
1307 : static inline int lpit_read_residency_count_address(u64 *address)
1308 : {
1309 : return -EINVAL;
1310 : }
1311 : #endif
1312 :
1313 : #ifdef CONFIG_ACPI_PPTT
1314 : int acpi_pptt_cpu_is_thread(unsigned int cpu);
1315 : int find_acpi_cpu_topology(unsigned int cpu, int level);
1316 : int find_acpi_cpu_topology_package(unsigned int cpu);
1317 : int find_acpi_cpu_topology_hetero_id(unsigned int cpu);
1318 : int find_acpi_cpu_cache_topology(unsigned int cpu, int level);
1319 : #else
1320 : static inline int acpi_pptt_cpu_is_thread(unsigned int cpu)
1321 : {
1322 : return -EINVAL;
1323 : }
1324 : static inline int find_acpi_cpu_topology(unsigned int cpu, int level)
1325 : {
1326 : return -EINVAL;
1327 : }
1328 : static inline int find_acpi_cpu_topology_package(unsigned int cpu)
1329 : {
1330 : return -EINVAL;
1331 : }
1332 : static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu)
1333 : {
1334 : return -EINVAL;
1335 : }
1336 : static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level)
1337 : {
1338 : return -EINVAL;
1339 : }
1340 : #endif
1341 :
1342 : #ifdef CONFIG_ACPI
1343 : extern int acpi_platform_notify(struct device *dev, enum kobject_action action);
1344 : #else
1345 : static inline int
1346 175 : acpi_platform_notify(struct device *dev, enum kobject_action action)
1347 : {
1348 175 : return 0;
1349 : }
1350 : #endif
1351 :
1352 : #endif /*_LINUX_ACPI_H*/
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