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
acpi_device_handle(struct acpi_device * adev)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
acpi_alloc_fwnode_static(void)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->ops = &acpi_static_fwnode_ops;
59
60 return fwnode;
61 }
62
acpi_free_fwnode_static(struct fwnode_handle * fwnode)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
has_acpi_companion(struct device * dev)84 static inline bool has_acpi_companion(struct device *dev)
85 {
86 return is_acpi_device_node(dev->fwnode);
87 }
88
acpi_preset_companion(struct device * dev,struct acpi_device * parent,u64 addr)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
acpi_dev_name(struct acpi_device * adev)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
acpi_debugger_init(void)169 static inline int acpi_debugger_init(void)
170 {
171 return -ENODEV;
172 }
173
acpi_register_debugger(struct module * owner,const struct acpi_debugger_ops * ops)174 static inline int acpi_register_debugger(struct module *owner,
175 const struct acpi_debugger_ops *ops)
176 {
177 return -ENODEV;
178 }
179
acpi_unregister_debugger(const struct acpi_debugger_ops * ops)180 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
181 {
182 }
183
acpi_debugger_create_thread(acpi_osd_exec_callback function,void * context)184 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
185 void *context)
186 {
187 return -ENODEV;
188 }
189
acpi_debugger_write_log(const char * msg)190 static inline int acpi_debugger_write_log(const char *msg)
191 {
192 return -ENODEV;
193 }
194
acpi_debugger_read_cmd(char * buffer,u32 buffer_length)195 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
196 {
197 return -ENODEV;
198 }
199
acpi_debugger_wait_command_ready(void)200 static inline int acpi_debugger_wait_command_ready(void)
201 {
202 return -ENODEV;
203 }
204
acpi_debugger_notify_command_complete(void)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_prepare (void);
226 void acpi_boot_table_init (void);
227 int acpi_mps_check (void);
228 int acpi_numa_init (void);
229
230 int acpi_locate_initial_tables (void);
231 void acpi_reserve_initial_tables (void);
232 void acpi_table_init_complete (void);
233 int acpi_table_init (void);
234 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
235 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
236 int entry_id,
237 acpi_tbl_entry_handler handler,
238 unsigned int max_entries);
239 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
240 struct acpi_subtable_proc *proc, int proc_num,
241 unsigned int max_entries);
242 int acpi_table_parse_madt(enum acpi_madt_type id,
243 acpi_tbl_entry_handler handler,
244 unsigned int max_entries);
245 int acpi_parse_mcfg (struct acpi_table_header *header);
246 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
247
248 /* the following numa functions are architecture-dependent */
249 void acpi_numa_slit_init (struct acpi_table_slit *slit);
250
251 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
252 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
253 #else
254 static inline void
acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity * pa)255 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
256 #endif
257
258 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
259
260 #ifdef CONFIG_ARM64
261 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
262 #else
263 static inline void
acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity * pa)264 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
265 #endif
266
267 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
268
269 #ifndef PHYS_CPUID_INVALID
270 typedef u32 phys_cpuid_t;
271 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
272 #endif
273
invalid_logical_cpuid(u32 cpuid)274 static inline bool invalid_logical_cpuid(u32 cpuid)
275 {
276 return (int)cpuid < 0;
277 }
278
invalid_phys_cpuid(phys_cpuid_t phys_id)279 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
280 {
281 return phys_id == PHYS_CPUID_INVALID;
282 }
283
284 /* Validate the processor object's proc_id */
285 bool acpi_duplicate_processor_id(int proc_id);
286 /* Processor _CTS control */
287 struct acpi_processor_power;
288
289 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE
290 bool acpi_processor_claim_cst_control(void);
291 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
292 struct acpi_processor_power *info);
293 #else
acpi_processor_claim_cst_control(void)294 static inline bool acpi_processor_claim_cst_control(void) { return false; }
acpi_processor_evaluate_cst(acpi_handle handle,u32 cpu,struct acpi_processor_power * info)295 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
296 struct acpi_processor_power *info)
297 {
298 return -ENODEV;
299 }
300 #endif
301
302 #ifdef CONFIG_ACPI_HOTPLUG_CPU
303 /* Arch dependent functions for cpu hotplug support */
304 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
305 int *pcpu);
306 int acpi_unmap_cpu(int cpu);
307 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
308
309 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
310 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
311 #endif
312
313 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
314 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
315 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
316 void acpi_irq_stats_init(void);
317 extern u32 acpi_irq_handled;
318 extern u32 acpi_irq_not_handled;
319 extern unsigned int acpi_sci_irq;
320 extern bool acpi_no_s5;
321 #define INVALID_ACPI_IRQ ((unsigned)-1)
acpi_sci_irq_valid(void)322 static inline bool acpi_sci_irq_valid(void)
323 {
324 return acpi_sci_irq != INVALID_ACPI_IRQ;
325 }
326
327 extern int sbf_port;
328 extern unsigned long acpi_realmode_flags;
329
330 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
331 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
332 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
333
334 void acpi_set_irq_model(enum acpi_irq_model_id model,
335 struct fwnode_handle *fwnode);
336
337 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags,
338 unsigned int size,
339 struct fwnode_handle *fwnode,
340 const struct irq_domain_ops *ops,
341 void *host_data);
342
343 #ifdef CONFIG_X86_IO_APIC
344 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
345 #else
acpi_get_override_irq(u32 gsi,int * trigger,int * polarity)346 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
347 {
348 return -1;
349 }
350 #endif
351 /*
352 * This function undoes the effect of one call to acpi_register_gsi().
353 * If this matches the last registration, any IRQ resources for gsi
354 * are freed.
355 */
356 void acpi_unregister_gsi (u32 gsi);
357
358 struct pci_dev;
359
360 int acpi_pci_irq_enable (struct pci_dev *dev);
361 void acpi_penalize_isa_irq(int irq, int active);
362 bool acpi_isa_irq_available(int irq);
363 #ifdef CONFIG_PCI
364 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
365 #else
acpi_penalize_sci_irq(int irq,int trigger,int polarity)366 static inline void acpi_penalize_sci_irq(int irq, int trigger,
367 int polarity)
368 {
369 }
370 #endif
371 void acpi_pci_irq_disable (struct pci_dev *dev);
372
373 extern int ec_read(u8 addr, u8 *val);
374 extern int ec_write(u8 addr, u8 val);
375 extern int ec_transaction(u8 command,
376 const u8 *wdata, unsigned wdata_len,
377 u8 *rdata, unsigned rdata_len);
378 extern acpi_handle ec_get_handle(void);
379
380 extern bool acpi_is_pnp_device(struct acpi_device *);
381
382 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
383
384 typedef void (*wmi_notify_handler) (u32 value, void *context);
385
386 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
387 u32 method_id,
388 const struct acpi_buffer *in,
389 struct acpi_buffer *out);
390 extern acpi_status wmi_query_block(const char *guid, u8 instance,
391 struct acpi_buffer *out);
392 extern acpi_status wmi_set_block(const char *guid, u8 instance,
393 const struct acpi_buffer *in);
394 extern acpi_status wmi_install_notify_handler(const char *guid,
395 wmi_notify_handler handler, void *data);
396 extern acpi_status wmi_remove_notify_handler(const char *guid);
397 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
398 extern bool wmi_has_guid(const char *guid);
399 extern char *wmi_get_acpi_device_uid(const char *guid);
400
401 #endif /* CONFIG_ACPI_WMI */
402
403 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
404 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
405 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
406 #define ACPI_VIDEO_BACKLIGHT 0x0008
407 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
408 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
409 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
410 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
411 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
412 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
413 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
414 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
415
416 extern char acpi_video_backlight_string[];
417 extern long acpi_is_video_device(acpi_handle handle);
418 extern int acpi_blacklisted(void);
419 extern void acpi_osi_setup(char *str);
420 extern bool acpi_osi_is_win8(void);
421
422 #ifdef CONFIG_ACPI_NUMA
423 int acpi_map_pxm_to_node(int pxm);
424 int acpi_get_node(acpi_handle handle);
425
426 /**
427 * pxm_to_online_node - Map proximity ID to online node
428 * @pxm: ACPI proximity ID
429 *
430 * This is similar to pxm_to_node(), but always returns an online
431 * node. When the mapped node from a given proximity ID is offline, it
432 * looks up the node distance table and returns the nearest online node.
433 *
434 * ACPI device drivers, which are called after the NUMA initialization has
435 * completed in the kernel, can call this interface to obtain their device
436 * NUMA topology from ACPI tables. Such drivers do not have to deal with
437 * offline nodes. A node may be offline when SRAT memory entry does not exist,
438 * or NUMA is disabled, ex. "numa=off" on x86.
439 */
pxm_to_online_node(int pxm)440 static inline int pxm_to_online_node(int pxm)
441 {
442 int node = pxm_to_node(pxm);
443
444 return numa_map_to_online_node(node);
445 }
446 #else
pxm_to_online_node(int pxm)447 static inline int pxm_to_online_node(int pxm)
448 {
449 return 0;
450 }
acpi_map_pxm_to_node(int pxm)451 static inline int acpi_map_pxm_to_node(int pxm)
452 {
453 return 0;
454 }
acpi_get_node(acpi_handle handle)455 static inline int acpi_get_node(acpi_handle handle)
456 {
457 return 0;
458 }
459 #endif
460 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
461
462 extern int pnpacpi_disabled;
463
464 #define PXM_INVAL (-1)
465
466 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
467 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
468 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
469 struct resource_win *win);
470 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
471 struct resource_win *win);
472 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
473 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
474 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
475 struct resource *res);
476
477 void acpi_dev_free_resource_list(struct list_head *list);
478 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
479 int (*preproc)(struct acpi_resource *, void *),
480 void *preproc_data);
481 int acpi_dev_get_dma_resources(struct acpi_device *adev,
482 struct list_head *list);
483 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
484 unsigned long types);
485
acpi_dev_filter_resource_type_cb(struct acpi_resource * ares,void * arg)486 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
487 void *arg)
488 {
489 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
490 }
491
492 struct acpi_device *acpi_resource_consumer(struct resource *res);
493
494 int acpi_check_resource_conflict(const struct resource *res);
495
496 int acpi_check_region(resource_size_t start, resource_size_t n,
497 const char *name);
498
499 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res,
500 u32 level);
501
502 int acpi_resources_are_enforced(void);
503
504 #ifdef CONFIG_HIBERNATION
505 void __init acpi_no_s4_hw_signature(void);
506 #endif
507
508 #ifdef CONFIG_PM_SLEEP
509 void __init acpi_old_suspend_ordering(void);
510 void __init acpi_nvs_nosave(void);
511 void __init acpi_nvs_nosave_s3(void);
512 void __init acpi_sleep_no_blacklist(void);
513 #endif /* CONFIG_PM_SLEEP */
514
515 int acpi_register_wakeup_handler(
516 int wake_irq, bool (*wakeup)(void *context), void *context);
517 void acpi_unregister_wakeup_handler(
518 bool (*wakeup)(void *context), void *context);
519
520 struct acpi_osc_context {
521 char *uuid_str; /* UUID string */
522 int rev;
523 struct acpi_buffer cap; /* list of DWORD capabilities */
524 struct acpi_buffer ret; /* free by caller if success */
525 };
526
527 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
528
529 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
530 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
531 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
532 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
533
534 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
535 #define OSC_QUERY_ENABLE 0x00000001 /* input */
536 #define OSC_REQUEST_ERROR 0x00000002 /* return */
537 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
538 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
539 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
540
541 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
542 #define OSC_SB_PAD_SUPPORT 0x00000001
543 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
544 #define OSC_SB_PR3_SUPPORT 0x00000004
545 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
546 #define OSC_SB_APEI_SUPPORT 0x00000010
547 #define OSC_SB_CPC_SUPPORT 0x00000020
548 #define OSC_SB_CPCV2_SUPPORT 0x00000040
549 #define OSC_SB_PCLPI_SUPPORT 0x00000080
550 #define OSC_SB_OSLPI_SUPPORT 0x00000100
551 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
552 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000
553
554 extern bool osc_sb_apei_support_acked;
555 extern bool osc_pc_lpi_support_confirmed;
556
557 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
558 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
559 #define OSC_PCI_ASPM_SUPPORT 0x00000002
560 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
561 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
562 #define OSC_PCI_MSI_SUPPORT 0x00000010
563 #define OSC_PCI_EDR_SUPPORT 0x00000080
564 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100
565 #define OSC_PCI_SUPPORT_MASKS 0x0000019f
566
567 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
568 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
569 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
570 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
571 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
572 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
573 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020
574 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080
575 #define OSC_PCI_CONTROL_MASKS 0x000000bf
576
577 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
578 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
579 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
580 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
581 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
582 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
583 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
584 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
585 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
586 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
587
588 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
589 u32 *mask, u32 req);
590
591 /* Enable _OST when all relevant hotplug operations are enabled */
592 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
593 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
594 defined(CONFIG_ACPI_CONTAINER)
595 #define ACPI_HOTPLUG_OST
596 #endif
597
598 /* _OST Source Event Code (OSPM Action) */
599 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
600 #define ACPI_OST_EC_OSPM_EJECT 0x103
601 #define ACPI_OST_EC_OSPM_INSERTION 0x200
602
603 /* _OST General Processing Status Code */
604 #define ACPI_OST_SC_SUCCESS 0x0
605 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
606 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
607
608 /* _OST OS Shutdown Processing (0x100) Status Code */
609 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
610 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
611 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
612 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
613
614 /* _OST Ejection Request (0x3, 0x103) Status Code */
615 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
616 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
617 #define ACPI_OST_SC_DEVICE_BUSY 0x82
618 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
619 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
620
621 /* _OST Insertion Request (0x200) Status Code */
622 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
623 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
624 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
625
626 enum acpi_predicate {
627 all_versions,
628 less_than_or_equal,
629 equal,
630 greater_than_or_equal,
631 };
632
633 /* Table must be terminted by a NULL entry */
634 struct acpi_platform_list {
635 char oem_id[ACPI_OEM_ID_SIZE+1];
636 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
637 u32 oem_revision;
638 char *table;
639 enum acpi_predicate pred;
640 char *reason;
641 u32 data;
642 };
643 int acpi_match_platform_list(const struct acpi_platform_list *plat);
644
645 extern void acpi_early_init(void);
646 extern void acpi_subsystem_init(void);
647 extern void arch_post_acpi_subsys_init(void);
648
649 extern int acpi_nvs_register(__u64 start, __u64 size);
650
651 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
652 void *data);
653
654 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
655 const struct device *dev);
656
657 const void *acpi_device_get_match_data(const struct device *dev);
658 extern bool acpi_driver_match_device(struct device *dev,
659 const struct device_driver *drv);
660 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
661 int acpi_device_modalias(struct device *, char *, int);
662 void acpi_walk_dep_device_list(acpi_handle handle);
663
664 struct platform_device *acpi_create_platform_device(struct acpi_device *,
665 struct property_entry *);
666 #define ACPI_PTR(_ptr) (_ptr)
667
acpi_device_set_enumerated(struct acpi_device * adev)668 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
669 {
670 adev->flags.visited = true;
671 }
672
acpi_device_clear_enumerated(struct acpi_device * adev)673 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
674 {
675 adev->flags.visited = false;
676 }
677
678 enum acpi_reconfig_event {
679 ACPI_RECONFIG_DEVICE_ADD = 0,
680 ACPI_RECONFIG_DEVICE_REMOVE,
681 };
682
683 int acpi_reconfig_notifier_register(struct notifier_block *nb);
684 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
685
686 #ifdef CONFIG_ACPI_GTDT
687 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
688 int acpi_gtdt_map_ppi(int type);
689 bool acpi_gtdt_c3stop(int type);
690 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
691 #endif
692
693 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER
acpi_arch_set_root_pointer(u64 addr)694 static inline void acpi_arch_set_root_pointer(u64 addr)
695 {
696 }
697 #endif
698
699 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
acpi_arch_get_root_pointer(void)700 static inline u64 acpi_arch_get_root_pointer(void)
701 {
702 return 0;
703 }
704 #endif
705
706 #else /* !CONFIG_ACPI */
707
708 #define acpi_disabled 1
709
710 #define ACPI_COMPANION(dev) (NULL)
711 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
712 #define ACPI_HANDLE(dev) (NULL)
713 #define ACPI_HANDLE_FWNODE(fwnode) (NULL)
714 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
715
716 #include <acpi/acpi_numa.h>
717
718 struct fwnode_handle;
719
acpi_dev_found(const char * hid)720 static inline bool acpi_dev_found(const char *hid)
721 {
722 return false;
723 }
724
acpi_dev_present(const char * hid,const char * uid,s64 hrv)725 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
726 {
727 return false;
728 }
729
730 struct acpi_device;
731
732 static inline bool
acpi_dev_hid_uid_match(struct acpi_device * adev,const char * hid2,const char * uid2)733 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2)
734 {
735 return false;
736 }
737
738 static inline struct acpi_device *
acpi_dev_get_first_match_dev(const char * hid,const char * uid,s64 hrv)739 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
740 {
741 return NULL;
742 }
743
acpi_dev_put(struct acpi_device * adev)744 static inline void acpi_dev_put(struct acpi_device *adev) {}
745
is_acpi_node(struct fwnode_handle * fwnode)746 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
747 {
748 return false;
749 }
750
is_acpi_device_node(struct fwnode_handle * fwnode)751 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
752 {
753 return false;
754 }
755
to_acpi_device_node(struct fwnode_handle * fwnode)756 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
757 {
758 return NULL;
759 }
760
is_acpi_data_node(struct fwnode_handle * fwnode)761 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
762 {
763 return false;
764 }
765
to_acpi_data_node(struct fwnode_handle * fwnode)766 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
767 {
768 return NULL;
769 }
770
acpi_data_node_match(struct fwnode_handle * fwnode,const char * name)771 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
772 const char *name)
773 {
774 return false;
775 }
776
acpi_fwnode_handle(struct acpi_device * adev)777 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
778 {
779 return NULL;
780 }
781
has_acpi_companion(struct device * dev)782 static inline bool has_acpi_companion(struct device *dev)
783 {
784 return false;
785 }
786
acpi_preset_companion(struct device * dev,struct acpi_device * parent,u64 addr)787 static inline void acpi_preset_companion(struct device *dev,
788 struct acpi_device *parent, u64 addr)
789 {
790 }
791
acpi_dev_name(struct acpi_device * adev)792 static inline const char *acpi_dev_name(struct acpi_device *adev)
793 {
794 return NULL;
795 }
796
acpi_get_first_physical_node(struct acpi_device * adev)797 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
798 {
799 return NULL;
800 }
801
acpi_early_init(void)802 static inline void acpi_early_init(void) { }
acpi_subsystem_init(void)803 static inline void acpi_subsystem_init(void) { }
804
early_acpi_boot_init(void)805 static inline int early_acpi_boot_init(void)
806 {
807 return 0;
808 }
acpi_boot_init(void)809 static inline int acpi_boot_init(void)
810 {
811 return 0;
812 }
813
acpi_boot_table_prepare(void)814 static inline void acpi_boot_table_prepare(void)
815 {
816 }
817
acpi_boot_table_init(void)818 static inline void acpi_boot_table_init(void)
819 {
820 }
821
acpi_mps_check(void)822 static inline int acpi_mps_check(void)
823 {
824 return 0;
825 }
826
acpi_check_resource_conflict(struct resource * res)827 static inline int acpi_check_resource_conflict(struct resource *res)
828 {
829 return 0;
830 }
831
acpi_check_region(resource_size_t start,resource_size_t n,const char * name)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;
acpi_table_parse(char * id,int (* handler)(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
acpi_nvs_register(__u64 start,__u64 size)845 static inline int acpi_nvs_register(__u64 start, __u64 size)
846 {
847 return 0;
848 }
849
acpi_nvs_for_each_region(int (* func)(__u64,__u64,void *),void * data)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
acpi_match_device(const struct acpi_device_id * ids,const struct device * dev)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
acpi_device_get_match_data(const struct device * dev)864 static inline const void *acpi_device_get_match_data(const struct device *dev)
865 {
866 return NULL;
867 }
868
acpi_driver_match_device(struct device * dev,const struct device_driver * drv)869 static inline bool acpi_driver_match_device(struct device *dev,
870 const struct device_driver *drv)
871 {
872 return false;
873 }
874
acpi_evaluate_dsm(acpi_handle handle,const guid_t * guid,u64 rev,u64 func,union acpi_object * argv4)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
acpi_device_uevent_modalias(struct device * dev,struct kobj_uevent_env * env)883 static inline int acpi_device_uevent_modalias(struct device *dev,
884 struct kobj_uevent_env *env)
885 {
886 return -ENODEV;
887 }
888
acpi_device_modalias(struct device * dev,char * buf,int size)889 static inline int acpi_device_modalias(struct device *dev,
890 char *buf, int size)
891 {
892 return -ENODEV;
893 }
894
895 static inline struct platform_device *
acpi_create_platform_device(struct acpi_device * adev,struct property_entry * properties)896 acpi_create_platform_device(struct acpi_device *adev,
897 struct property_entry *properties)
898 {
899 return NULL;
900 }
901
acpi_dma_supported(struct acpi_device * adev)902 static inline bool acpi_dma_supported(struct acpi_device *adev)
903 {
904 return false;
905 }
906
acpi_get_dma_attr(struct acpi_device * adev)907 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
908 {
909 return DEV_DMA_NOT_SUPPORTED;
910 }
911
acpi_dma_get_range(struct device * dev,u64 * dma_addr,u64 * offset,u64 * size)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
acpi_dma_configure(struct device * dev,enum dev_dma_attr attr)918 static inline int acpi_dma_configure(struct device *dev,
919 enum dev_dma_attr attr)
920 {
921 return 0;
922 }
923
acpi_dma_configure_id(struct device * dev,enum dev_dma_attr attr,const u32 * input_id)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
acpi_device_set_enumerated(struct acpi_device * adev)933 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
934 {
935 }
936
acpi_device_clear_enumerated(struct acpi_device * adev)937 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
938 {
939 }
940
acpi_reconfig_notifier_register(struct notifier_block * nb)941 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
942 {
943 return -EINVAL;
944 }
945
acpi_reconfig_notifier_unregister(struct notifier_block * nb)946 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
947 {
948 return -EINVAL;
949 }
950
acpi_resource_consumer(struct resource * res)951 static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
952 {
953 return NULL;
954 }
955
acpi_register_wakeup_handler(int wake_irq,bool (* wakeup)(void * context),void * context)956 static inline int acpi_register_wakeup_handler(int wake_irq,
957 bool (*wakeup)(void *context), void *context)
958 {
959 return -ENXIO;
960 }
961
acpi_unregister_wakeup_handler(bool (* wakeup)(void * context),void * context)962 static inline void acpi_unregister_wakeup_handler(
963 bool (*wakeup)(void *context), void *context) { }
964
965 #endif /* !CONFIG_ACPI */
966
967 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
968 int acpi_ioapic_add(acpi_handle root);
969 #else
acpi_ioapic_add(acpi_handle root)970 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
971 #endif
972
973 #ifdef CONFIG_ACPI
974 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
975 u32 pm1a_ctrl, u32 pm1b_ctrl));
976
977 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
978 u32 pm1a_control, u32 pm1b_control);
979
980 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
981 u32 val_a, u32 val_b));
982
983 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
984 u32 val_a, u32 val_b);
985
986 #ifndef CONFIG_IA64
987 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
988 #else
arch_reserve_mem_area(acpi_physical_address addr,size_t size)989 static inline void arch_reserve_mem_area(acpi_physical_address addr,
990 size_t size)
991 {
992 }
993 #endif /* CONFIG_X86 */
994 #else
995 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
996 #endif
997
998 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
999 int acpi_dev_suspend(struct device *dev, bool wakeup);
1000 int acpi_dev_resume(struct device *dev);
1001 int acpi_subsys_runtime_suspend(struct device *dev);
1002 int acpi_subsys_runtime_resume(struct device *dev);
1003 int acpi_dev_pm_attach(struct device *dev, bool power_on);
1004 #else
acpi_subsys_runtime_suspend(struct device * dev)1005 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
acpi_subsys_runtime_resume(struct device * dev)1006 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
acpi_dev_pm_attach(struct device * dev,bool power_on)1007 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
1008 {
1009 return 0;
1010 }
1011 #endif
1012
1013 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
1014 int acpi_subsys_prepare(struct device *dev);
1015 void acpi_subsys_complete(struct device *dev);
1016 int acpi_subsys_suspend_late(struct device *dev);
1017 int acpi_subsys_suspend_noirq(struct device *dev);
1018 int acpi_subsys_suspend(struct device *dev);
1019 int acpi_subsys_freeze(struct device *dev);
1020 int acpi_subsys_poweroff(struct device *dev);
1021 void acpi_ec_mark_gpe_for_wake(void);
1022 void acpi_ec_set_gpe_wake_mask(u8 action);
1023 #else
acpi_subsys_prepare(struct device * dev)1024 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
acpi_subsys_complete(struct device * dev)1025 static inline void acpi_subsys_complete(struct device *dev) {}
acpi_subsys_suspend_late(struct device * dev)1026 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
acpi_subsys_suspend_noirq(struct device * dev)1027 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
acpi_subsys_suspend(struct device * dev)1028 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
acpi_subsys_freeze(struct device * dev)1029 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
acpi_subsys_poweroff(struct device * dev)1030 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; }
acpi_ec_mark_gpe_for_wake(void)1031 static inline void acpi_ec_mark_gpe_for_wake(void) {}
acpi_ec_set_gpe_wake_mask(u8 action)1032 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {}
1033 #endif
1034
1035 #ifdef CONFIG_ACPI
1036 __printf(3, 4)
1037 void acpi_handle_printk(const char *level, acpi_handle handle,
1038 const char *fmt, ...);
1039 #else /* !CONFIG_ACPI */
1040 static inline __printf(3, 4) void
acpi_handle_printk(const char * level,void * handle,const char * fmt,...)1041 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
1042 #endif /* !CONFIG_ACPI */
1043
1044 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
1045 __printf(3, 4)
1046 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
1047 #endif
1048
1049 /*
1050 * acpi_handle_<level>: Print message with ACPI prefix and object path
1051 *
1052 * These interfaces acquire the global namespace mutex to obtain an object
1053 * path. In interrupt context, it shows the object path as <n/a>.
1054 */
1055 #define acpi_handle_emerg(handle, fmt, ...) \
1056 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
1057 #define acpi_handle_alert(handle, fmt, ...) \
1058 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
1059 #define acpi_handle_crit(handle, fmt, ...) \
1060 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
1061 #define acpi_handle_err(handle, fmt, ...) \
1062 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
1063 #define acpi_handle_warn(handle, fmt, ...) \
1064 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
1065 #define acpi_handle_notice(handle, fmt, ...) \
1066 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
1067 #define acpi_handle_info(handle, fmt, ...) \
1068 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
1069
1070 #if defined(DEBUG)
1071 #define acpi_handle_debug(handle, fmt, ...) \
1072 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
1073 #else
1074 #if defined(CONFIG_DYNAMIC_DEBUG)
1075 #define acpi_handle_debug(handle, fmt, ...) \
1076 _dynamic_func_call(fmt, __acpi_handle_debug, \
1077 handle, pr_fmt(fmt), ##__VA_ARGS__)
1078 #else
1079 #define acpi_handle_debug(handle, fmt, ...) \
1080 ({ \
1081 if (0) \
1082 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
1083 0; \
1084 })
1085 #endif
1086 #endif
1087
1088 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1089 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1090 struct acpi_resource_gpio **agpio);
1091 int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index);
1092 #else
acpi_gpio_get_irq_resource(struct acpi_resource * ares,struct acpi_resource_gpio ** agpio)1093 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1094 struct acpi_resource_gpio **agpio)
1095 {
1096 return false;
1097 }
acpi_dev_gpio_irq_get_by(struct acpi_device * adev,const char * name,int index)1098 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev,
1099 const char *name, int index)
1100 {
1101 return -ENXIO;
1102 }
1103 #endif
1104
acpi_dev_gpio_irq_get(struct acpi_device * adev,int index)1105 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1106 {
1107 return acpi_dev_gpio_irq_get_by(adev, NULL, index);
1108 }
1109
1110 /* Device properties */
1111
1112 #ifdef CONFIG_ACPI
1113 int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1114 acpi_object_type type, const union acpi_object **obj);
1115 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1116 const char *name, size_t index, size_t num_args,
1117 struct fwnode_reference_args *args);
1118
acpi_node_get_property_reference(const struct fwnode_handle * fwnode,const char * name,size_t index,struct fwnode_reference_args * args)1119 static inline int acpi_node_get_property_reference(
1120 const struct fwnode_handle *fwnode,
1121 const char *name, size_t index,
1122 struct fwnode_reference_args *args)
1123 {
1124 return __acpi_node_get_property_reference(fwnode, name, index,
1125 NR_FWNODE_REFERENCE_ARGS, args);
1126 }
1127
acpi_dev_has_props(const struct acpi_device * adev)1128 static inline bool acpi_dev_has_props(const struct acpi_device *adev)
1129 {
1130 return !list_empty(&adev->data.properties);
1131 }
1132
1133 struct acpi_device_properties *
1134 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid,
1135 const union acpi_object *properties);
1136
1137 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1138 void **valptr);
1139 int acpi_dev_prop_read_single(struct acpi_device *adev,
1140 const char *propname, enum dev_prop_type proptype,
1141 void *val);
1142 int acpi_node_prop_read(const struct fwnode_handle *fwnode,
1143 const char *propname, enum dev_prop_type proptype,
1144 void *val, size_t nval);
1145 int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname,
1146 enum dev_prop_type proptype, void *val, size_t nval);
1147
1148 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1149 struct fwnode_handle *child);
1150 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode);
1151
1152 struct acpi_probe_entry;
1153 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1154 struct acpi_probe_entry *);
1155
1156 #define ACPI_TABLE_ID_LEN 5
1157
1158 /**
1159 * struct acpi_probe_entry - boot-time probing entry
1160 * @id: ACPI table name
1161 * @type: Optional subtable type to match
1162 * (if @id contains subtables)
1163 * @subtable_valid: Optional callback to check the validity of
1164 * the subtable
1165 * @probe_table: Callback to the driver being probed when table
1166 * match is successful
1167 * @probe_subtbl: Callback to the driver being probed when table and
1168 * subtable match (and optional callback is successful)
1169 * @driver_data: Sideband data provided back to the driver
1170 */
1171 struct acpi_probe_entry {
1172 __u8 id[ACPI_TABLE_ID_LEN];
1173 __u8 type;
1174 acpi_probe_entry_validate_subtbl subtable_valid;
1175 union {
1176 acpi_tbl_table_handler probe_table;
1177 acpi_tbl_entry_handler probe_subtbl;
1178 };
1179 kernel_ulong_t driver_data;
1180 };
1181
1182 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \
1183 valid, data, fn) \
1184 static const struct acpi_probe_entry __acpi_probe_##name \
1185 __used __section("__" #table "_acpi_probe_table") = { \
1186 .id = table_id, \
1187 .type = subtable, \
1188 .subtable_valid = valid, \
1189 .probe_table = fn, \
1190 .driver_data = data, \
1191 }
1192
1193 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \
1194 subtable, valid, data, fn) \
1195 static const struct acpi_probe_entry __acpi_probe_##name \
1196 __used __section("__" #table "_acpi_probe_table") = { \
1197 .id = table_id, \
1198 .type = subtable, \
1199 .subtable_valid = valid, \
1200 .probe_subtbl = fn, \
1201 .driver_data = data, \
1202 }
1203
1204 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1205 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1206
1207 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1208
1209 #define acpi_probe_device_table(t) \
1210 ({ \
1211 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1212 ACPI_PROBE_TABLE_END(t); \
1213 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1214 (&ACPI_PROBE_TABLE_END(t) - \
1215 &ACPI_PROBE_TABLE(t))); \
1216 })
1217 #else
acpi_dev_get_property(struct acpi_device * adev,const char * name,acpi_object_type type,const union acpi_object ** obj)1218 static inline int acpi_dev_get_property(struct acpi_device *adev,
1219 const char *name, acpi_object_type type,
1220 const union acpi_object **obj)
1221 {
1222 return -ENXIO;
1223 }
1224
1225 static inline int
__acpi_node_get_property_reference(const struct fwnode_handle * fwnode,const char * name,size_t index,size_t num_args,struct fwnode_reference_args * args)1226 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1227 const char *name, size_t index, size_t num_args,
1228 struct fwnode_reference_args *args)
1229 {
1230 return -ENXIO;
1231 }
1232
1233 static inline int
acpi_node_get_property_reference(const struct fwnode_handle * fwnode,const char * name,size_t index,struct fwnode_reference_args * args)1234 acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1235 const char *name, size_t index,
1236 struct fwnode_reference_args *args)
1237 {
1238 return -ENXIO;
1239 }
1240
acpi_node_prop_get(const struct fwnode_handle * fwnode,const char * propname,void ** valptr)1241 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1242 const char *propname,
1243 void **valptr)
1244 {
1245 return -ENXIO;
1246 }
1247
acpi_dev_prop_read_single(const struct acpi_device * adev,const char * propname,enum dev_prop_type proptype,void * val)1248 static inline int acpi_dev_prop_read_single(const struct acpi_device *adev,
1249 const char *propname,
1250 enum dev_prop_type proptype,
1251 void *val)
1252 {
1253 return -ENXIO;
1254 }
1255
acpi_node_prop_read(const struct fwnode_handle * fwnode,const char * propname,enum dev_prop_type proptype,void * val,size_t nval)1256 static inline int acpi_node_prop_read(const struct fwnode_handle *fwnode,
1257 const char *propname,
1258 enum dev_prop_type proptype,
1259 void *val, size_t nval)
1260 {
1261 return -ENXIO;
1262 }
1263
acpi_dev_prop_read(const struct acpi_device * adev,const char * propname,enum dev_prop_type proptype,void * val,size_t nval)1264 static inline int acpi_dev_prop_read(const struct acpi_device *adev,
1265 const char *propname,
1266 enum dev_prop_type proptype,
1267 void *val, size_t nval)
1268 {
1269 return -ENXIO;
1270 }
1271
1272 static inline struct fwnode_handle *
acpi_get_next_subnode(const struct fwnode_handle * fwnode,struct fwnode_handle * child)1273 acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1274 struct fwnode_handle *child)
1275 {
1276 return NULL;
1277 }
1278
1279 static inline struct fwnode_handle *
acpi_node_get_parent(const struct fwnode_handle * fwnode)1280 acpi_node_get_parent(const struct fwnode_handle *fwnode)
1281 {
1282 return NULL;
1283 }
1284
1285 static inline struct fwnode_handle *
acpi_graph_get_next_endpoint(const struct fwnode_handle * fwnode,struct fwnode_handle * prev)1286 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1287 struct fwnode_handle *prev)
1288 {
1289 return ERR_PTR(-ENXIO);
1290 }
1291
1292 static inline int
acpi_graph_get_remote_endpoint(const struct fwnode_handle * fwnode,struct fwnode_handle ** remote,struct fwnode_handle ** port,struct fwnode_handle ** endpoint)1293 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1294 struct fwnode_handle **remote,
1295 struct fwnode_handle **port,
1296 struct fwnode_handle **endpoint)
1297 {
1298 return -ENXIO;
1299 }
1300
1301 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1302 static const void * __acpi_table_##name[] \
1303 __attribute__((unused)) \
1304 = { (void *) table_id, \
1305 (void *) subtable, \
1306 (void *) valid, \
1307 (void *) fn, \
1308 (void *) data }
1309
1310 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1311 #endif
1312
1313 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1314 void acpi_table_upgrade(void);
1315 #else
acpi_table_upgrade(void)1316 static inline void acpi_table_upgrade(void) { }
1317 #endif
1318
1319 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1320 extern bool acpi_has_watchdog(void);
1321 #else
acpi_has_watchdog(void)1322 static inline bool acpi_has_watchdog(void) { return false; }
1323 #endif
1324
1325 #ifdef CONFIG_ACPI_SPCR_TABLE
1326 extern bool qdf2400_e44_present;
1327 int acpi_parse_spcr(bool enable_earlycon, bool enable_console);
1328 #else
acpi_parse_spcr(bool enable_earlycon,bool enable_console)1329 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console)
1330 {
1331 return 0;
1332 }
1333 #endif
1334
1335 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1336 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1337 #else
1338 static inline
acpi_irq_get(acpi_handle handle,unsigned int index,struct resource * res)1339 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1340 {
1341 return -EINVAL;
1342 }
1343 #endif
1344
1345 #ifdef CONFIG_ACPI_LPIT
1346 int lpit_read_residency_count_address(u64 *address);
1347 #else
lpit_read_residency_count_address(u64 * address)1348 static inline int lpit_read_residency_count_address(u64 *address)
1349 {
1350 return -EINVAL;
1351 }
1352 #endif
1353
1354 #ifdef CONFIG_ACPI_PPTT
1355 int acpi_pptt_cpu_is_thread(unsigned int cpu);
1356 int find_acpi_cpu_topology(unsigned int cpu, int level);
1357 int find_acpi_cpu_topology_package(unsigned int cpu);
1358 int find_acpi_cpu_topology_hetero_id(unsigned int cpu);
1359 int find_acpi_cpu_cache_topology(unsigned int cpu, int level);
1360 #else
acpi_pptt_cpu_is_thread(unsigned int cpu)1361 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu)
1362 {
1363 return -EINVAL;
1364 }
find_acpi_cpu_topology(unsigned int cpu,int level)1365 static inline int find_acpi_cpu_topology(unsigned int cpu, int level)
1366 {
1367 return -EINVAL;
1368 }
find_acpi_cpu_topology_package(unsigned int cpu)1369 static inline int find_acpi_cpu_topology_package(unsigned int cpu)
1370 {
1371 return -EINVAL;
1372 }
find_acpi_cpu_topology_hetero_id(unsigned int cpu)1373 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu)
1374 {
1375 return -EINVAL;
1376 }
find_acpi_cpu_cache_topology(unsigned int cpu,int level)1377 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level)
1378 {
1379 return -EINVAL;
1380 }
1381 #endif
1382
1383 #ifdef CONFIG_ACPI
1384 extern int acpi_platform_notify(struct device *dev, enum kobject_action action);
1385 #else
1386 static inline int
acpi_platform_notify(struct device * dev,enum kobject_action action)1387 acpi_platform_notify(struct device *dev, enum kobject_action action)
1388 {
1389 return 0;
1390 }
1391 #endif
1392
1393 #endif /*_LINUX_ACPI_H*/
1394