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TOMOYO Linux Cross Reference
Linux/include/linux/acpi.h

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  1 /*
  2  * acpi.h - ACPI Interface
  3  *
  4  * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
  5  *
  6  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  7  *
  8  * This program is free software; you can redistribute it and/or modify
  9  * it under the terms of the GNU General Public License as published by
 10  * the Free Software Foundation; either version 2 of the License, or
 11  * (at your option) any later version.
 12  *
 13  * This program is distributed in the hope that it will be useful,
 14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 16  * GNU General Public License for more details.
 17  *
 18  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 19  */
 20 
 21 #ifndef _LINUX_ACPI_H
 22 #define _LINUX_ACPI_H
 23 
 24 #include <linux/errno.h>
 25 #include <linux/ioport.h>       /* for struct resource */
 26 #include <linux/resource_ext.h>
 27 #include <linux/device.h>
 28 #include <linux/property.h>
 29 #include <linux/uuid.h>
 30 
 31 #ifndef _LINUX
 32 #define _LINUX
 33 #endif
 34 #include <acpi/acpi.h>
 35 
 36 #ifdef  CONFIG_ACPI
 37 
 38 #include <linux/list.h>
 39 #include <linux/mod_devicetable.h>
 40 #include <linux/dynamic_debug.h>
 41 #include <linux/module.h>
 42 #include <linux/mutex.h>
 43 
 44 #include <acpi/acpi_bus.h>
 45 #include <acpi/acpi_drivers.h>
 46 #include <acpi/acpi_numa.h>
 47 #include <acpi/acpi_io.h>
 48 #include <asm/acpi.h>
 49 
 50 static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
 51 {
 52         return adev ? adev->handle : NULL;
 53 }
 54 
 55 #define ACPI_COMPANION(dev)             to_acpi_device_node((dev)->fwnode)
 56 #define ACPI_COMPANION_SET(dev, adev)   set_primary_fwnode(dev, (adev) ? \
 57         acpi_fwnode_handle(adev) : NULL)
 58 #define ACPI_HANDLE(dev)                acpi_device_handle(ACPI_COMPANION(dev))
 59 
 60 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void)
 61 {
 62         struct fwnode_handle *fwnode;
 63 
 64         fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL);
 65         if (!fwnode)
 66                 return NULL;
 67 
 68         fwnode->ops = &acpi_static_fwnode_ops;
 69 
 70         return fwnode;
 71 }
 72 
 73 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode)
 74 {
 75         if (WARN_ON(!is_acpi_static_node(fwnode)))
 76                 return;
 77 
 78         kfree(fwnode);
 79 }
 80 
 81 /**
 82  * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
 83  * the PCI-defined class-code information
 84  *
 85  * @_cls : the class, subclass, prog-if triple for this device
 86  * @_msk : the class mask for this device
 87  *
 88  * This macro is used to create a struct acpi_device_id that matches a
 89  * specific PCI class. The .id and .driver_data fields will be left
 90  * initialized with the default value.
 91  */
 92 #define ACPI_DEVICE_CLASS(_cls, _msk)   .cls = (_cls), .cls_msk = (_msk),
 93 
 94 static inline bool has_acpi_companion(struct device *dev)
 95 {
 96         return is_acpi_device_node(dev->fwnode);
 97 }
 98 
 99 static inline void acpi_preset_companion(struct device *dev,
100                                          struct acpi_device *parent, u64 addr)
101 {
102         ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL));
103 }
104 
105 static inline const char *acpi_dev_name(struct acpi_device *adev)
106 {
107         return dev_name(&adev->dev);
108 }
109 
110 struct device *acpi_get_first_physical_node(struct acpi_device *adev);
111 
112 enum acpi_irq_model_id {
113         ACPI_IRQ_MODEL_PIC = 0,
114         ACPI_IRQ_MODEL_IOAPIC,
115         ACPI_IRQ_MODEL_IOSAPIC,
116         ACPI_IRQ_MODEL_PLATFORM,
117         ACPI_IRQ_MODEL_GIC,
118         ACPI_IRQ_MODEL_COUNT
119 };
120 
121 extern enum acpi_irq_model_id   acpi_irq_model;
122 
123 enum acpi_interrupt_id {
124         ACPI_INTERRUPT_PMI      = 1,
125         ACPI_INTERRUPT_INIT,
126         ACPI_INTERRUPT_CPEI,
127         ACPI_INTERRUPT_COUNT
128 };
129 
130 #define ACPI_SPACE_MEM          0
131 
132 enum acpi_address_range_id {
133         ACPI_ADDRESS_RANGE_MEMORY = 1,
134         ACPI_ADDRESS_RANGE_RESERVED = 2,
135         ACPI_ADDRESS_RANGE_ACPI = 3,
136         ACPI_ADDRESS_RANGE_NVS  = 4,
137         ACPI_ADDRESS_RANGE_COUNT
138 };
139 
140 
141 /* Table Handlers */
142 
143 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
144 
145 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
146                                       const unsigned long end);
147 
148 /* Debugger support */
149 
150 struct acpi_debugger_ops {
151         int (*create_thread)(acpi_osd_exec_callback function, void *context);
152         ssize_t (*write_log)(const char *msg);
153         ssize_t (*read_cmd)(char *buffer, size_t length);
154         int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
155         int (*notify_command_complete)(void);
156 };
157 
158 struct acpi_debugger {
159         const struct acpi_debugger_ops *ops;
160         struct module *owner;
161         struct mutex lock;
162 };
163 
164 #ifdef CONFIG_ACPI_DEBUGGER
165 int __init acpi_debugger_init(void);
166 int acpi_register_debugger(struct module *owner,
167                            const struct acpi_debugger_ops *ops);
168 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
169 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
170 ssize_t acpi_debugger_write_log(const char *msg);
171 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
172 int acpi_debugger_wait_command_ready(void);
173 int acpi_debugger_notify_command_complete(void);
174 #else
175 static inline int acpi_debugger_init(void)
176 {
177         return -ENODEV;
178 }
179 
180 static inline int acpi_register_debugger(struct module *owner,
181                                          const struct acpi_debugger_ops *ops)
182 {
183         return -ENODEV;
184 }
185 
186 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
187 {
188 }
189 
190 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
191                                               void *context)
192 {
193         return -ENODEV;
194 }
195 
196 static inline int acpi_debugger_write_log(const char *msg)
197 {
198         return -ENODEV;
199 }
200 
201 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
202 {
203         return -ENODEV;
204 }
205 
206 static inline int acpi_debugger_wait_command_ready(void)
207 {
208         return -ENODEV;
209 }
210 
211 static inline int acpi_debugger_notify_command_complete(void)
212 {
213         return -ENODEV;
214 }
215 #endif
216 
217 #define BAD_MADT_ENTRY(entry, end) (                                        \
218                 (!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
219                 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
220 
221 struct acpi_subtable_proc {
222         int id;
223         acpi_tbl_entry_handler handler;
224         int count;
225 };
226 
227 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size);
228 void __acpi_unmap_table(void __iomem *map, unsigned long size);
229 int early_acpi_boot_init(void);
230 int acpi_boot_init (void);
231 void acpi_boot_table_init (void);
232 int acpi_mps_check (void);
233 int acpi_numa_init (void);
234 
235 int acpi_table_init (void);
236 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
237 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
238                               int entry_id,
239                               acpi_tbl_entry_handler handler,
240                               unsigned int max_entries);
241 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
242                               struct acpi_subtable_proc *proc, int proc_num,
243                               unsigned int max_entries);
244 int acpi_table_parse_madt(enum acpi_madt_type id,
245                           acpi_tbl_entry_handler handler,
246                           unsigned int max_entries);
247 int acpi_parse_mcfg (struct acpi_table_header *header);
248 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
249 
250 /* the following numa functions are architecture-dependent */
251 void acpi_numa_slit_init (struct acpi_table_slit *slit);
252 
253 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
254 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
255 #else
256 static inline void
257 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
258 #endif
259 
260 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
261 
262 #ifdef CONFIG_ARM64
263 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
264 #else
265 static inline void
266 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
267 #endif
268 
269 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
270 
271 #ifndef PHYS_CPUID_INVALID
272 typedef u32 phys_cpuid_t;
273 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
274 #endif
275 
276 static inline bool invalid_logical_cpuid(u32 cpuid)
277 {
278         return (int)cpuid < 0;
279 }
280 
281 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
282 {
283         return phys_id == PHYS_CPUID_INVALID;
284 }
285 
286 /* Validate the processor object's proc_id */
287 bool acpi_duplicate_processor_id(int proc_id);
288 
289 #ifdef CONFIG_ACPI_HOTPLUG_CPU
290 /* Arch dependent functions for cpu hotplug support */
291 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
292                  int *pcpu);
293 int acpi_unmap_cpu(int cpu);
294 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
295 
296 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
297 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
298 #endif
299 
300 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
301 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
302 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
303 void acpi_irq_stats_init(void);
304 extern u32 acpi_irq_handled;
305 extern u32 acpi_irq_not_handled;
306 extern unsigned int acpi_sci_irq;
307 extern bool acpi_no_s5;
308 #define INVALID_ACPI_IRQ        ((unsigned)-1)
309 static inline bool acpi_sci_irq_valid(void)
310 {
311         return acpi_sci_irq != INVALID_ACPI_IRQ;
312 }
313 
314 extern int sbf_port;
315 extern unsigned long acpi_realmode_flags;
316 
317 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
318 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
319 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
320 
321 void acpi_set_irq_model(enum acpi_irq_model_id model,
322                         struct fwnode_handle *fwnode);
323 
324 #ifdef CONFIG_X86_IO_APIC
325 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
326 #else
327 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
328 #endif
329 /*
330  * This function undoes the effect of one call to acpi_register_gsi().
331  * If this matches the last registration, any IRQ resources for gsi
332  * are freed.
333  */
334 void acpi_unregister_gsi (u32 gsi);
335 
336 struct pci_dev;
337 
338 int acpi_pci_irq_enable (struct pci_dev *dev);
339 void acpi_penalize_isa_irq(int irq, int active);
340 bool acpi_isa_irq_available(int irq);
341 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
342 void acpi_pci_irq_disable (struct pci_dev *dev);
343 
344 extern int ec_read(u8 addr, u8 *val);
345 extern int ec_write(u8 addr, u8 val);
346 extern int ec_transaction(u8 command,
347                           const u8 *wdata, unsigned wdata_len,
348                           u8 *rdata, unsigned rdata_len);
349 extern acpi_handle ec_get_handle(void);
350 
351 extern bool acpi_is_pnp_device(struct acpi_device *);
352 
353 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
354 
355 typedef void (*wmi_notify_handler) (u32 value, void *context);
356 
357 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
358                                         u32 method_id,
359                                         const struct acpi_buffer *in,
360                                         struct acpi_buffer *out);
361 extern acpi_status wmi_query_block(const char *guid, u8 instance,
362                                         struct acpi_buffer *out);
363 extern acpi_status wmi_set_block(const char *guid, u8 instance,
364                                         const struct acpi_buffer *in);
365 extern acpi_status wmi_install_notify_handler(const char *guid,
366                                         wmi_notify_handler handler, void *data);
367 extern acpi_status wmi_remove_notify_handler(const char *guid);
368 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
369 extern bool wmi_has_guid(const char *guid);
370 
371 #endif  /* CONFIG_ACPI_WMI */
372 
373 #define ACPI_VIDEO_OUTPUT_SWITCHING                     0x0001
374 #define ACPI_VIDEO_DEVICE_POSTING                       0x0002
375 #define ACPI_VIDEO_ROM_AVAILABLE                        0x0004
376 #define ACPI_VIDEO_BACKLIGHT                            0x0008
377 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR               0x0010
378 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO                0x0020
379 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR        0x0040
380 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO         0x0080
381 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR                 0x0100
382 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO                  0x0200
383 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR          0x0400
384 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO           0x0800
385 
386 extern char acpi_video_backlight_string[];
387 extern long acpi_is_video_device(acpi_handle handle);
388 extern int acpi_blacklisted(void);
389 extern void acpi_osi_setup(char *str);
390 extern bool acpi_osi_is_win8(void);
391 
392 #ifdef CONFIG_ACPI_NUMA
393 int acpi_map_pxm_to_online_node(int pxm);
394 int acpi_get_node(acpi_handle handle);
395 #else
396 static inline int acpi_map_pxm_to_online_node(int pxm)
397 {
398         return 0;
399 }
400 static inline int acpi_get_node(acpi_handle handle)
401 {
402         return 0;
403 }
404 #endif
405 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
406 
407 extern int pnpacpi_disabled;
408 
409 #define PXM_INVAL       (-1)
410 
411 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
412 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
413 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
414                                      struct resource_win *win);
415 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
416                                          struct resource_win *win);
417 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
418 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
419 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
420                                  struct resource *res);
421 
422 void acpi_dev_free_resource_list(struct list_head *list);
423 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
424                            int (*preproc)(struct acpi_resource *, void *),
425                            void *preproc_data);
426 int acpi_dev_get_dma_resources(struct acpi_device *adev,
427                                struct list_head *list);
428 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
429                                   unsigned long types);
430 
431 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
432                                                    void *arg)
433 {
434         return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
435 }
436 
437 struct acpi_device *acpi_resource_consumer(struct resource *res);
438 
439 int acpi_check_resource_conflict(const struct resource *res);
440 
441 int acpi_check_region(resource_size_t start, resource_size_t n,
442                       const char *name);
443 
444 int acpi_resources_are_enforced(void);
445 
446 #ifdef CONFIG_HIBERNATION
447 void __init acpi_no_s4_hw_signature(void);
448 #endif
449 
450 #ifdef CONFIG_PM_SLEEP
451 void __init acpi_old_suspend_ordering(void);
452 void __init acpi_nvs_nosave(void);
453 void __init acpi_nvs_nosave_s3(void);
454 #endif /* CONFIG_PM_SLEEP */
455 
456 struct acpi_osc_context {
457         char *uuid_str;                 /* UUID string */
458         int rev;
459         struct acpi_buffer cap;         /* list of DWORD capabilities */
460         struct acpi_buffer ret;         /* free by caller if success */
461 };
462 
463 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
464 
465 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
466 #define OSC_QUERY_DWORD                         0       /* DWORD 1 */
467 #define OSC_SUPPORT_DWORD                       1       /* DWORD 2 */
468 #define OSC_CONTROL_DWORD                       2       /* DWORD 3 */
469 
470 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
471 #define OSC_QUERY_ENABLE                        0x00000001  /* input */
472 #define OSC_REQUEST_ERROR                       0x00000002  /* return */
473 #define OSC_INVALID_UUID_ERROR                  0x00000004  /* return */
474 #define OSC_INVALID_REVISION_ERROR              0x00000008  /* return */
475 #define OSC_CAPABILITIES_MASK_ERROR             0x00000010  /* return */
476 
477 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
478 #define OSC_SB_PAD_SUPPORT                      0x00000001
479 #define OSC_SB_PPC_OST_SUPPORT                  0x00000002
480 #define OSC_SB_PR3_SUPPORT                      0x00000004
481 #define OSC_SB_HOTPLUG_OST_SUPPORT              0x00000008
482 #define OSC_SB_APEI_SUPPORT                     0x00000010
483 #define OSC_SB_CPC_SUPPORT                      0x00000020
484 #define OSC_SB_CPCV2_SUPPORT                    0x00000040
485 #define OSC_SB_PCLPI_SUPPORT                    0x00000080
486 #define OSC_SB_OSLPI_SUPPORT                    0x00000100
487 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT         0x00001000
488 
489 extern bool osc_sb_apei_support_acked;
490 extern bool osc_pc_lpi_support_confirmed;
491 
492 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
493 #define OSC_PCI_EXT_CONFIG_SUPPORT              0x00000001
494 #define OSC_PCI_ASPM_SUPPORT                    0x00000002
495 #define OSC_PCI_CLOCK_PM_SUPPORT                0x00000004
496 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT          0x00000008
497 #define OSC_PCI_MSI_SUPPORT                     0x00000010
498 #define OSC_PCI_SUPPORT_MASKS                   0x0000001f
499 
500 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
501 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL       0x00000001
502 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL          0x00000002
503 #define OSC_PCI_EXPRESS_PME_CONTROL             0x00000004
504 #define OSC_PCI_EXPRESS_AER_CONTROL             0x00000008
505 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL      0x00000010
506 #define OSC_PCI_CONTROL_MASKS                   0x0000001f
507 
508 #define ACPI_GSB_ACCESS_ATTRIB_QUICK            0x00000002
509 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV         0x00000004
510 #define ACPI_GSB_ACCESS_ATTRIB_BYTE             0x00000006
511 #define ACPI_GSB_ACCESS_ATTRIB_WORD             0x00000008
512 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK            0x0000000A
513 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE        0x0000000B
514 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL        0x0000000C
515 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL       0x0000000D
516 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES        0x0000000E
517 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS      0x0000000F
518 
519 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
520                                              u32 *mask, u32 req);
521 
522 /* Enable _OST when all relevant hotplug operations are enabled */
523 #if defined(CONFIG_ACPI_HOTPLUG_CPU) &&                 \
524         defined(CONFIG_ACPI_HOTPLUG_MEMORY) &&          \
525         defined(CONFIG_ACPI_CONTAINER)
526 #define ACPI_HOTPLUG_OST
527 #endif
528 
529 /* _OST Source Event Code (OSPM Action) */
530 #define ACPI_OST_EC_OSPM_SHUTDOWN               0x100
531 #define ACPI_OST_EC_OSPM_EJECT                  0x103
532 #define ACPI_OST_EC_OSPM_INSERTION              0x200
533 
534 /* _OST General Processing Status Code */
535 #define ACPI_OST_SC_SUCCESS                     0x0
536 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE        0x1
537 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY         0x2
538 
539 /* _OST OS Shutdown Processing (0x100) Status Code */
540 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED          0x80
541 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS     0x81
542 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED       0x82
543 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED   0x83
544 
545 /* _OST Ejection Request (0x3, 0x103) Status Code */
546 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED         0x80
547 #define ACPI_OST_SC_DEVICE_IN_USE               0x81
548 #define ACPI_OST_SC_DEVICE_BUSY                 0x82
549 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY       0x83
550 #define ACPI_OST_SC_EJECT_IN_PROGRESS           0x84
551 
552 /* _OST Insertion Request (0x200) Status Code */
553 #define ACPI_OST_SC_INSERT_IN_PROGRESS          0x80
554 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE         0x81
555 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED        0x82
556 
557 enum acpi_predicate {
558         all_versions,
559         less_than_or_equal,
560         equal,
561         greater_than_or_equal,
562 };
563 
564 /* Table must be terminted by a NULL entry */
565 struct acpi_platform_list {
566         char    oem_id[ACPI_OEM_ID_SIZE+1];
567         char    oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
568         u32     oem_revision;
569         char    *table;
570         enum acpi_predicate pred;
571         char    *reason;
572         u32     data;
573 };
574 int acpi_match_platform_list(const struct acpi_platform_list *plat);
575 
576 extern void acpi_early_init(void);
577 extern void acpi_subsystem_init(void);
578 
579 extern int acpi_nvs_register(__u64 start, __u64 size);
580 
581 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
582                                     void *data);
583 
584 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
585                                                const struct device *dev);
586 
587 extern bool acpi_driver_match_device(struct device *dev,
588                                      const struct device_driver *drv);
589 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
590 int acpi_device_modalias(struct device *, char *, int);
591 void acpi_walk_dep_device_list(acpi_handle handle);
592 
593 struct platform_device *acpi_create_platform_device(struct acpi_device *,
594                                                     struct property_entry *);
595 #define ACPI_PTR(_ptr)  (_ptr)
596 
597 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
598 {
599         adev->flags.visited = true;
600 }
601 
602 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
603 {
604         adev->flags.visited = false;
605 }
606 
607 enum acpi_reconfig_event  {
608         ACPI_RECONFIG_DEVICE_ADD = 0,
609         ACPI_RECONFIG_DEVICE_REMOVE,
610 };
611 
612 int acpi_reconfig_notifier_register(struct notifier_block *nb);
613 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
614 
615 #ifdef CONFIG_ACPI_GTDT
616 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
617 int acpi_gtdt_map_ppi(int type);
618 bool acpi_gtdt_c3stop(int type);
619 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
620 #endif
621 
622 #else   /* !CONFIG_ACPI */
623 
624 #define acpi_disabled 1
625 
626 #define ACPI_COMPANION(dev)             (NULL)
627 #define ACPI_COMPANION_SET(dev, adev)   do { } while (0)
628 #define ACPI_HANDLE(dev)                (NULL)
629 #define ACPI_DEVICE_CLASS(_cls, _msk)   .cls = (0), .cls_msk = (0),
630 
631 struct fwnode_handle;
632 
633 static inline bool acpi_dev_found(const char *hid)
634 {
635         return false;
636 }
637 
638 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
639 {
640         return false;
641 }
642 
643 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
644 {
645         return false;
646 }
647 
648 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
649 {
650         return false;
651 }
652 
653 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
654 {
655         return NULL;
656 }
657 
658 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
659 {
660         return false;
661 }
662 
663 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
664 {
665         return NULL;
666 }
667 
668 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
669                                         const char *name)
670 {
671         return false;
672 }
673 
674 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
675 {
676         return NULL;
677 }
678 
679 static inline bool has_acpi_companion(struct device *dev)
680 {
681         return false;
682 }
683 
684 static inline void acpi_preset_companion(struct device *dev,
685                                          struct acpi_device *parent, u64 addr)
686 {
687 }
688 
689 static inline const char *acpi_dev_name(struct acpi_device *adev)
690 {
691         return NULL;
692 }
693 
694 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
695 {
696         return NULL;
697 }
698 
699 static inline void acpi_early_init(void) { }
700 static inline void acpi_subsystem_init(void) { }
701 
702 static inline int early_acpi_boot_init(void)
703 {
704         return 0;
705 }
706 static inline int acpi_boot_init(void)
707 {
708         return 0;
709 }
710 
711 static inline void acpi_boot_table_init(void)
712 {
713         return;
714 }
715 
716 static inline int acpi_mps_check(void)
717 {
718         return 0;
719 }
720 
721 static inline int acpi_check_resource_conflict(struct resource *res)
722 {
723         return 0;
724 }
725 
726 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
727                                     const char *name)
728 {
729         return 0;
730 }
731 
732 struct acpi_table_header;
733 static inline int acpi_table_parse(char *id,
734                                 int (*handler)(struct acpi_table_header *))
735 {
736         return -ENODEV;
737 }
738 
739 static inline int acpi_nvs_register(__u64 start, __u64 size)
740 {
741         return 0;
742 }
743 
744 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
745                                            void *data)
746 {
747         return 0;
748 }
749 
750 struct acpi_device_id;
751 
752 static inline const struct acpi_device_id *acpi_match_device(
753         const struct acpi_device_id *ids, const struct device *dev)
754 {
755         return NULL;
756 }
757 
758 static inline bool acpi_driver_match_device(struct device *dev,
759                                             const struct device_driver *drv)
760 {
761         return false;
762 }
763 
764 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
765                                                    const guid_t *guid,
766                                                    int rev, int func,
767                                                    union acpi_object *argv4)
768 {
769         return NULL;
770 }
771 
772 static inline int acpi_device_uevent_modalias(struct device *dev,
773                                 struct kobj_uevent_env *env)
774 {
775         return -ENODEV;
776 }
777 
778 static inline int acpi_device_modalias(struct device *dev,
779                                 char *buf, int size)
780 {
781         return -ENODEV;
782 }
783 
784 static inline bool acpi_dma_supported(struct acpi_device *adev)
785 {
786         return false;
787 }
788 
789 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
790 {
791         return DEV_DMA_NOT_SUPPORTED;
792 }
793 
794 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr,
795                                      u64 *offset, u64 *size)
796 {
797         return -ENODEV;
798 }
799 
800 static inline int acpi_dma_configure(struct device *dev,
801                                      enum dev_dma_attr attr)
802 {
803         return 0;
804 }
805 
806 static inline void acpi_dma_deconfigure(struct device *dev) { }
807 
808 #define ACPI_PTR(_ptr)  (NULL)
809 
810 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
811 {
812 }
813 
814 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
815 {
816 }
817 
818 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
819 {
820         return -EINVAL;
821 }
822 
823 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
824 {
825         return -EINVAL;
826 }
827 
828 static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
829 {
830         return NULL;
831 }
832 
833 #endif  /* !CONFIG_ACPI */
834 
835 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
836 int acpi_ioapic_add(acpi_handle root);
837 #else
838 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
839 #endif
840 
841 #ifdef CONFIG_ACPI
842 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
843                                u32 pm1a_ctrl,  u32 pm1b_ctrl));
844 
845 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
846                                   u32 pm1a_control, u32 pm1b_control);
847 
848 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
849                                         u32 val_a,  u32 val_b));
850 
851 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
852                                            u32 val_a, u32 val_b);
853 
854 #ifdef CONFIG_X86
855 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
856 #else
857 static inline void arch_reserve_mem_area(acpi_physical_address addr,
858                                           size_t size)
859 {
860 }
861 #endif /* CONFIG_X86 */
862 #else
863 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
864 #endif
865 
866 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
867 int acpi_dev_runtime_suspend(struct device *dev);
868 int acpi_dev_runtime_resume(struct device *dev);
869 int acpi_subsys_runtime_suspend(struct device *dev);
870 int acpi_subsys_runtime_resume(struct device *dev);
871 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
872 int acpi_dev_pm_attach(struct device *dev, bool power_on);
873 #else
874 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
875 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
876 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
877 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
878 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
879 {
880         return NULL;
881 }
882 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
883 {
884         return -ENODEV;
885 }
886 #endif
887 
888 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
889 int acpi_dev_suspend_late(struct device *dev);
890 int acpi_dev_resume_early(struct device *dev);
891 int acpi_subsys_prepare(struct device *dev);
892 void acpi_subsys_complete(struct device *dev);
893 int acpi_subsys_suspend_late(struct device *dev);
894 int acpi_subsys_resume_early(struct device *dev);
895 int acpi_subsys_suspend(struct device *dev);
896 int acpi_subsys_freeze(struct device *dev);
897 #else
898 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
899 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
900 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
901 static inline void acpi_subsys_complete(struct device *dev) {}
902 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
903 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
904 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
905 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
906 #endif
907 
908 #ifdef CONFIG_ACPI
909 __printf(3, 4)
910 void acpi_handle_printk(const char *level, acpi_handle handle,
911                         const char *fmt, ...);
912 #else   /* !CONFIG_ACPI */
913 static inline __printf(3, 4) void
914 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
915 #endif  /* !CONFIG_ACPI */
916 
917 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
918 __printf(3, 4)
919 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
920 #else
921 #define __acpi_handle_debug(descriptor, handle, fmt, ...)               \
922         acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
923 #endif
924 
925 /*
926  * acpi_handle_<level>: Print message with ACPI prefix and object path
927  *
928  * These interfaces acquire the global namespace mutex to obtain an object
929  * path.  In interrupt context, it shows the object path as <n/a>.
930  */
931 #define acpi_handle_emerg(handle, fmt, ...)                             \
932         acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
933 #define acpi_handle_alert(handle, fmt, ...)                             \
934         acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
935 #define acpi_handle_crit(handle, fmt, ...)                              \
936         acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
937 #define acpi_handle_err(handle, fmt, ...)                               \
938         acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
939 #define acpi_handle_warn(handle, fmt, ...)                              \
940         acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
941 #define acpi_handle_notice(handle, fmt, ...)                            \
942         acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
943 #define acpi_handle_info(handle, fmt, ...)                              \
944         acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
945 
946 #if defined(DEBUG)
947 #define acpi_handle_debug(handle, fmt, ...)                             \
948         acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
949 #else
950 #if defined(CONFIG_DYNAMIC_DEBUG)
951 #define acpi_handle_debug(handle, fmt, ...)                             \
952 do {                                                                    \
953         DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);                 \
954         if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT))          \
955                 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt),   \
956                                 ##__VA_ARGS__);                         \
957 } while (0)
958 #else
959 #define acpi_handle_debug(handle, fmt, ...)                             \
960 ({                                                                      \
961         if (0)                                                          \
962                 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
963         0;                                                              \
964 })
965 #endif
966 #endif
967 
968 struct acpi_gpio_params {
969         unsigned int crs_entry_index;
970         unsigned int line_index;
971         bool active_low;
972 };
973 
974 struct acpi_gpio_mapping {
975         const char *name;
976         const struct acpi_gpio_params *data;
977         unsigned int size;
978 };
979 
980 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
981 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
982                               const struct acpi_gpio_mapping *gpios);
983 
984 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
985 {
986         if (adev)
987                 adev->driver_gpios = NULL;
988 }
989 
990 int devm_acpi_dev_add_driver_gpios(struct device *dev,
991                                    const struct acpi_gpio_mapping *gpios);
992 void devm_acpi_dev_remove_driver_gpios(struct device *dev);
993 
994 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
995                                 struct acpi_resource_gpio **agpio);
996 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
997 #else
998 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
999                               const struct acpi_gpio_mapping *gpios)
1000 {
1001         return -ENXIO;
1002 }
1003 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
1004 
1005 static inline int devm_acpi_dev_add_driver_gpios(struct device *dev,
1006                               const struct acpi_gpio_mapping *gpios)
1007 {
1008         return -ENXIO;
1009 }
1010 static inline void devm_acpi_dev_remove_driver_gpios(struct device *dev) {}
1011 
1012 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1013                                               struct acpi_resource_gpio **agpio)
1014 {
1015         return false;
1016 }
1017 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1018 {
1019         return -ENXIO;
1020 }
1021 #endif
1022 
1023 /* Device properties */
1024 
1025 #define MAX_ACPI_REFERENCE_ARGS 8
1026 struct acpi_reference_args {
1027         struct acpi_device *adev;
1028         size_t nargs;
1029         u64 args[MAX_ACPI_REFERENCE_ARGS];
1030 };
1031 
1032 #ifdef CONFIG_ACPI
1033 int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1034                           acpi_object_type type, const union acpi_object **obj);
1035 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1036                                 const char *name, size_t index, size_t num_args,
1037                                 struct acpi_reference_args *args);
1038 
1039 static inline int acpi_node_get_property_reference(
1040                                 const struct fwnode_handle *fwnode,
1041                                 const char *name, size_t index,
1042                                 struct acpi_reference_args *args)
1043 {
1044         return __acpi_node_get_property_reference(fwnode, name, index,
1045                 MAX_ACPI_REFERENCE_ARGS, args);
1046 }
1047 
1048 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1049                        void **valptr);
1050 int acpi_dev_prop_read_single(struct acpi_device *adev,
1051                               const char *propname, enum dev_prop_type proptype,
1052                               void *val);
1053 int acpi_node_prop_read(const struct fwnode_handle *fwnode,
1054                         const char *propname, enum dev_prop_type proptype,
1055                         void *val, size_t nval);
1056 int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname,
1057                        enum dev_prop_type proptype, void *val, size_t nval);
1058 
1059 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1060                                             struct fwnode_handle *child);
1061 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode);
1062 
1063 struct fwnode_handle *
1064 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1065                              struct fwnode_handle *prev);
1066 int acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1067                                    struct fwnode_handle **remote,
1068                                    struct fwnode_handle **port,
1069                                    struct fwnode_handle **endpoint);
1070 
1071 struct acpi_probe_entry;
1072 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1073                                                  struct acpi_probe_entry *);
1074 
1075 #define ACPI_TABLE_ID_LEN       5
1076 
1077 /**
1078  * struct acpi_probe_entry - boot-time probing entry
1079  * @id:                 ACPI table name
1080  * @type:               Optional subtable type to match
1081  *                      (if @id contains subtables)
1082  * @subtable_valid:     Optional callback to check the validity of
1083  *                      the subtable
1084  * @probe_table:        Callback to the driver being probed when table
1085  *                      match is successful
1086  * @probe_subtbl:       Callback to the driver being probed when table and
1087  *                      subtable match (and optional callback is successful)
1088  * @driver_data:        Sideband data provided back to the driver
1089  */
1090 struct acpi_probe_entry {
1091         __u8 id[ACPI_TABLE_ID_LEN];
1092         __u8 type;
1093         acpi_probe_entry_validate_subtbl subtable_valid;
1094         union {
1095                 acpi_tbl_table_handler probe_table;
1096                 acpi_tbl_entry_handler probe_subtbl;
1097         };
1098         kernel_ulong_t driver_data;
1099 };
1100 
1101 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn)      \
1102         static const struct acpi_probe_entry __acpi_probe_##name        \
1103                 __used __section(__##table##_acpi_probe_table)          \
1104                  = {                                                    \
1105                         .id = table_id,                                 \
1106                         .type = subtable,                               \
1107                         .subtable_valid = valid,                        \
1108                         .probe_table = (acpi_tbl_table_handler)fn,      \
1109                         .driver_data = data,                            \
1110                    }
1111 
1112 #define ACPI_PROBE_TABLE(name)          __##name##_acpi_probe_table
1113 #define ACPI_PROBE_TABLE_END(name)      __##name##_acpi_probe_table_end
1114 
1115 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1116 
1117 #define acpi_probe_device_table(t)                                      \
1118         ({                                                              \
1119                 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t),     \
1120                                                ACPI_PROBE_TABLE_END(t); \
1121                 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t),         \
1122                                           (&ACPI_PROBE_TABLE_END(t) -   \
1123                                            &ACPI_PROBE_TABLE(t)));      \
1124         })
1125 #else
1126 static inline int acpi_dev_get_property(struct acpi_device *adev,
1127                                         const char *name, acpi_object_type type,
1128                                         const union acpi_object **obj)
1129 {
1130         return -ENXIO;
1131 }
1132 
1133 static inline int
1134 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1135                                 const char *name, size_t index, size_t num_args,
1136                                 struct acpi_reference_args *args)
1137 {
1138         return -ENXIO;
1139 }
1140 
1141 static inline int
1142 acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1143                                  const char *name, size_t index,
1144                                  struct acpi_reference_args *args)
1145 {
1146         return -ENXIO;
1147 }
1148 
1149 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1150                                      const char *propname,
1151                                      void **valptr)
1152 {
1153         return -ENXIO;
1154 }
1155 
1156 static inline int acpi_dev_prop_get(const struct acpi_device *adev,
1157                                     const char *propname,
1158                                     void **valptr)
1159 {
1160         return -ENXIO;
1161 }
1162 
1163 static inline int acpi_dev_prop_read_single(const struct acpi_device *adev,
1164                                             const char *propname,
1165                                             enum dev_prop_type proptype,
1166                                             void *val)
1167 {
1168         return -ENXIO;
1169 }
1170 
1171 static inline int acpi_node_prop_read(const struct fwnode_handle *fwnode,
1172                                       const char *propname,
1173                                       enum dev_prop_type proptype,
1174                                       void *val, size_t nval)
1175 {
1176         return -ENXIO;
1177 }
1178 
1179 static inline int acpi_dev_prop_read(const struct acpi_device *adev,
1180                                      const char *propname,
1181                                      enum dev_prop_type proptype,
1182                                      void *val, size_t nval)
1183 {
1184         return -ENXIO;
1185 }
1186 
1187 static inline struct fwnode_handle *
1188 acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1189                       struct fwnode_handle *child)
1190 {
1191         return NULL;
1192 }
1193 
1194 static inline struct fwnode_handle *
1195 acpi_node_get_parent(const struct fwnode_handle *fwnode)
1196 {
1197         return NULL;
1198 }
1199 
1200 static inline struct fwnode_handle *
1201 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1202                              struct fwnode_handle *prev)
1203 {
1204         return ERR_PTR(-ENXIO);
1205 }
1206 
1207 static inline int
1208 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1209                                struct fwnode_handle **remote,
1210                                struct fwnode_handle **port,
1211                                struct fwnode_handle **endpoint)
1212 {
1213         return -ENXIO;
1214 }
1215 
1216 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1217         static const void * __acpi_table_##name[]                       \
1218                 __attribute__((unused))                                 \
1219                  = { (void *) table_id,                                 \
1220                      (void *) subtable,                                 \
1221                      (void *) valid,                                    \
1222                      (void *) fn,                                       \
1223                      (void *) data }
1224 
1225 #define acpi_probe_device_table(t)      ({ int __r = 0; __r;})
1226 #endif
1227 
1228 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1229 void acpi_table_upgrade(void);
1230 #else
1231 static inline void acpi_table_upgrade(void) { }
1232 #endif
1233 
1234 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1235 extern bool acpi_has_watchdog(void);
1236 #else
1237 static inline bool acpi_has_watchdog(void) { return false; }
1238 #endif
1239 
1240 #ifdef CONFIG_ACPI_SPCR_TABLE
1241 extern bool qdf2400_e44_present;
1242 int parse_spcr(bool earlycon);
1243 #else
1244 static inline int parse_spcr(bool earlycon) { return 0; }
1245 #endif
1246 
1247 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1248 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1249 #else
1250 static inline
1251 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1252 {
1253         return -EINVAL;
1254 }
1255 #endif
1256 
1257 #endif  /*_LINUX_ACPI_H*/
1258 

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