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_init(fwnode, &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 struct acpi_prmt_module_header prmt;
136 };
137
138 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
139
140 typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header,
141 const unsigned long end);
142
143 /* Debugger support */
144
145 struct acpi_debugger_ops {
146 int (*create_thread)(acpi_osd_exec_callback function, void *context);
147 ssize_t (*write_log)(const char *msg);
148 ssize_t (*read_cmd)(char *buffer, size_t length);
149 int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
150 int (*notify_command_complete)(void);
151 };
152
153 struct acpi_debugger {
154 const struct acpi_debugger_ops *ops;
155 struct module *owner;
156 struct mutex lock;
157 };
158
159 #ifdef CONFIG_ACPI_DEBUGGER
160 int __init acpi_debugger_init(void);
161 int acpi_register_debugger(struct module *owner,
162 const struct acpi_debugger_ops *ops);
163 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
164 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
165 ssize_t acpi_debugger_write_log(const char *msg);
166 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
167 int acpi_debugger_wait_command_ready(void);
168 int acpi_debugger_notify_command_complete(void);
169 #else
acpi_debugger_init(void)170 static inline int acpi_debugger_init(void)
171 {
172 return -ENODEV;
173 }
174
acpi_register_debugger(struct module * owner,const struct acpi_debugger_ops * ops)175 static inline int acpi_register_debugger(struct module *owner,
176 const struct acpi_debugger_ops *ops)
177 {
178 return -ENODEV;
179 }
180
acpi_unregister_debugger(const struct acpi_debugger_ops * ops)181 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
182 {
183 }
184
acpi_debugger_create_thread(acpi_osd_exec_callback function,void * context)185 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
186 void *context)
187 {
188 return -ENODEV;
189 }
190
acpi_debugger_write_log(const char * msg)191 static inline int acpi_debugger_write_log(const char *msg)
192 {
193 return -ENODEV;
194 }
195
acpi_debugger_read_cmd(char * buffer,u32 buffer_length)196 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
197 {
198 return -ENODEV;
199 }
200
acpi_debugger_wait_command_ready(void)201 static inline int acpi_debugger_wait_command_ready(void)
202 {
203 return -ENODEV;
204 }
205
acpi_debugger_notify_command_complete(void)206 static inline int acpi_debugger_notify_command_complete(void)
207 {
208 return -ENODEV;
209 }
210 #endif
211
212 #define BAD_MADT_ENTRY(entry, end) ( \
213 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
214 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
215
216 struct acpi_subtable_proc {
217 int id;
218 acpi_tbl_entry_handler handler;
219 int count;
220 };
221
222 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size);
223 void __acpi_unmap_table(void __iomem *map, unsigned long size);
224 int early_acpi_boot_init(void);
225 int acpi_boot_init (void);
226 void acpi_boot_table_prepare (void);
227 void acpi_boot_table_init (void);
228 int acpi_mps_check (void);
229 int acpi_numa_init (void);
230
231 int acpi_locate_initial_tables (void);
232 void acpi_reserve_initial_tables (void);
233 void acpi_table_init_complete (void);
234 int acpi_table_init (void);
235 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
236 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
237 int entry_id,
238 acpi_tbl_entry_handler handler,
239 unsigned int max_entries);
240 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
241 struct acpi_subtable_proc *proc, int proc_num,
242 unsigned int max_entries);
243 int acpi_table_parse_madt(enum acpi_madt_type id,
244 acpi_tbl_entry_handler handler,
245 unsigned int max_entries);
246 int acpi_parse_mcfg (struct acpi_table_header *header);
247 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
248
249 /* the following numa functions are architecture-dependent */
250 void acpi_numa_slit_init (struct acpi_table_slit *slit);
251
252 #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH)
253 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
254 #else
255 static inline void
acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity * pa)256 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
257 #endif
258
259 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
260
261 #ifdef CONFIG_ARM64
262 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
263 void acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size);
264 #else
265 static inline void
acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity * pa)266 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
267 static inline void
acpi_arch_dma_setup(struct device * dev,u64 * dma_addr,u64 * dma_size)268 acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size) { }
269 #endif
270
271 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
272
273 #ifndef PHYS_CPUID_INVALID
274 typedef u32 phys_cpuid_t;
275 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
276 #endif
277
invalid_logical_cpuid(u32 cpuid)278 static inline bool invalid_logical_cpuid(u32 cpuid)
279 {
280 return (int)cpuid < 0;
281 }
282
invalid_phys_cpuid(phys_cpuid_t phys_id)283 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
284 {
285 return phys_id == PHYS_CPUID_INVALID;
286 }
287
288 /* Validate the processor object's proc_id */
289 bool acpi_duplicate_processor_id(int proc_id);
290 /* Processor _CTS control */
291 struct acpi_processor_power;
292
293 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE
294 bool acpi_processor_claim_cst_control(void);
295 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
296 struct acpi_processor_power *info);
297 #else
acpi_processor_claim_cst_control(void)298 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)299 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
300 struct acpi_processor_power *info)
301 {
302 return -ENODEV;
303 }
304 #endif
305
306 #ifdef CONFIG_ACPI_HOTPLUG_CPU
307 /* Arch dependent functions for cpu hotplug support */
308 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
309 int *pcpu);
310 int acpi_unmap_cpu(int cpu);
311 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
312
313 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
314 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
315 #endif
316
317 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
318 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
319 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
320 void acpi_irq_stats_init(void);
321 extern u32 acpi_irq_handled;
322 extern u32 acpi_irq_not_handled;
323 extern unsigned int acpi_sci_irq;
324 extern bool acpi_no_s5;
325 #define INVALID_ACPI_IRQ ((unsigned)-1)
acpi_sci_irq_valid(void)326 static inline bool acpi_sci_irq_valid(void)
327 {
328 return acpi_sci_irq != INVALID_ACPI_IRQ;
329 }
330
331 extern int sbf_port;
332 extern unsigned long acpi_realmode_flags;
333
334 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
335 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
336 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
337
338 void acpi_set_irq_model(enum acpi_irq_model_id model,
339 struct fwnode_handle *fwnode);
340
341 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags,
342 unsigned int size,
343 struct fwnode_handle *fwnode,
344 const struct irq_domain_ops *ops,
345 void *host_data);
346
347 #ifdef CONFIG_X86_IO_APIC
348 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
349 #else
acpi_get_override_irq(u32 gsi,int * trigger,int * polarity)350 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
351 {
352 return -1;
353 }
354 #endif
355 /*
356 * This function undoes the effect of one call to acpi_register_gsi().
357 * If this matches the last registration, any IRQ resources for gsi
358 * are freed.
359 */
360 void acpi_unregister_gsi (u32 gsi);
361
362 struct pci_dev;
363
364 int acpi_pci_irq_enable (struct pci_dev *dev);
365 void acpi_penalize_isa_irq(int irq, int active);
366 bool acpi_isa_irq_available(int irq);
367 #ifdef CONFIG_PCI
368 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
369 #else
acpi_penalize_sci_irq(int irq,int trigger,int polarity)370 static inline void acpi_penalize_sci_irq(int irq, int trigger,
371 int polarity)
372 {
373 }
374 #endif
375 void acpi_pci_irq_disable (struct pci_dev *dev);
376
377 extern int ec_read(u8 addr, u8 *val);
378 extern int ec_write(u8 addr, u8 val);
379 extern int ec_transaction(u8 command,
380 const u8 *wdata, unsigned wdata_len,
381 u8 *rdata, unsigned rdata_len);
382 extern acpi_handle ec_get_handle(void);
383
384 extern bool acpi_is_pnp_device(struct acpi_device *);
385
386 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
387
388 typedef void (*wmi_notify_handler) (u32 value, void *context);
389
390 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
391 u32 method_id,
392 const struct acpi_buffer *in,
393 struct acpi_buffer *out);
394 extern acpi_status wmi_query_block(const char *guid, u8 instance,
395 struct acpi_buffer *out);
396 extern acpi_status wmi_set_block(const char *guid, u8 instance,
397 const struct acpi_buffer *in);
398 extern acpi_status wmi_install_notify_handler(const char *guid,
399 wmi_notify_handler handler, void *data);
400 extern acpi_status wmi_remove_notify_handler(const char *guid);
401 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
402 extern bool wmi_has_guid(const char *guid);
403 extern char *wmi_get_acpi_device_uid(const char *guid);
404
405 #endif /* CONFIG_ACPI_WMI */
406
407 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
408 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
409 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
410 #define ACPI_VIDEO_BACKLIGHT 0x0008
411 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
412 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
413 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
414 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
415 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
416 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
417 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
418 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
419
420 extern char acpi_video_backlight_string[];
421 extern long acpi_is_video_device(acpi_handle handle);
422 extern int acpi_blacklisted(void);
423 extern void acpi_osi_setup(char *str);
424 extern bool acpi_osi_is_win8(void);
425
426 #ifdef CONFIG_ACPI_NUMA
427 int acpi_map_pxm_to_node(int pxm);
428 int acpi_get_node(acpi_handle handle);
429
430 /**
431 * pxm_to_online_node - Map proximity ID to online node
432 * @pxm: ACPI proximity ID
433 *
434 * This is similar to pxm_to_node(), but always returns an online
435 * node. When the mapped node from a given proximity ID is offline, it
436 * looks up the node distance table and returns the nearest online node.
437 *
438 * ACPI device drivers, which are called after the NUMA initialization has
439 * completed in the kernel, can call this interface to obtain their device
440 * NUMA topology from ACPI tables. Such drivers do not have to deal with
441 * offline nodes. A node may be offline when SRAT memory entry does not exist,
442 * or NUMA is disabled, ex. "numa=off" on x86.
443 */
pxm_to_online_node(int pxm)444 static inline int pxm_to_online_node(int pxm)
445 {
446 int node = pxm_to_node(pxm);
447
448 return numa_map_to_online_node(node);
449 }
450 #else
pxm_to_online_node(int pxm)451 static inline int pxm_to_online_node(int pxm)
452 {
453 return 0;
454 }
acpi_map_pxm_to_node(int pxm)455 static inline int acpi_map_pxm_to_node(int pxm)
456 {
457 return 0;
458 }
acpi_get_node(acpi_handle handle)459 static inline int acpi_get_node(acpi_handle handle)
460 {
461 return 0;
462 }
463 #endif
464 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
465
466 extern int pnpacpi_disabled;
467
468 #define PXM_INVAL (-1)
469
470 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
471 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
472 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
473 struct resource_win *win);
474 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
475 struct resource_win *win);
476 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
477 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
478 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
479 struct resource *res);
480
481 void acpi_dev_free_resource_list(struct list_head *list);
482 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
483 int (*preproc)(struct acpi_resource *, void *),
484 void *preproc_data);
485 int acpi_dev_get_dma_resources(struct acpi_device *adev,
486 struct list_head *list);
487 int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list);
488 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
489 unsigned long types);
490
acpi_dev_filter_resource_type_cb(struct acpi_resource * ares,void * arg)491 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
492 void *arg)
493 {
494 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
495 }
496
497 struct acpi_device *acpi_resource_consumer(struct resource *res);
498
499 int acpi_check_resource_conflict(const struct resource *res);
500
501 int acpi_check_region(resource_size_t start, resource_size_t n,
502 const char *name);
503
504 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res,
505 u32 level);
506
507 int acpi_resources_are_enforced(void);
508
509 #ifdef CONFIG_HIBERNATION
510 void __init acpi_no_s4_hw_signature(void);
511 #endif
512
513 #ifdef CONFIG_PM_SLEEP
514 void __init acpi_old_suspend_ordering(void);
515 void __init acpi_nvs_nosave(void);
516 void __init acpi_nvs_nosave_s3(void);
517 void __init acpi_sleep_no_blacklist(void);
518 #endif /* CONFIG_PM_SLEEP */
519
520 int acpi_register_wakeup_handler(
521 int wake_irq, bool (*wakeup)(void *context), void *context);
522 void acpi_unregister_wakeup_handler(
523 bool (*wakeup)(void *context), void *context);
524
525 struct acpi_osc_context {
526 char *uuid_str; /* UUID string */
527 int rev;
528 struct acpi_buffer cap; /* list of DWORD capabilities */
529 struct acpi_buffer ret; /* free by caller if success */
530 };
531
532 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
533
534 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
535 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
536 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
537 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
538
539 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
540 #define OSC_QUERY_ENABLE 0x00000001 /* input */
541 #define OSC_REQUEST_ERROR 0x00000002 /* return */
542 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
543 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
544 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
545
546 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
547 #define OSC_SB_PAD_SUPPORT 0x00000001
548 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
549 #define OSC_SB_PR3_SUPPORT 0x00000004
550 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
551 #define OSC_SB_APEI_SUPPORT 0x00000010
552 #define OSC_SB_CPC_SUPPORT 0x00000020
553 #define OSC_SB_CPCV2_SUPPORT 0x00000040
554 #define OSC_SB_PCLPI_SUPPORT 0x00000080
555 #define OSC_SB_OSLPI_SUPPORT 0x00000100
556 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
557 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000
558 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000
559 #define OSC_SB_PRM_SUPPORT 0x00200000
560
561 extern bool osc_sb_apei_support_acked;
562 extern bool osc_pc_lpi_support_confirmed;
563 extern bool osc_sb_native_usb4_support_confirmed;
564
565 /* USB4 Capabilities */
566 #define OSC_USB_USB3_TUNNELING 0x00000001
567 #define OSC_USB_DP_TUNNELING 0x00000002
568 #define OSC_USB_PCIE_TUNNELING 0x00000004
569 #define OSC_USB_XDOMAIN 0x00000008
570
571 extern u32 osc_sb_native_usb4_control;
572
573 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
574 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
575 #define OSC_PCI_ASPM_SUPPORT 0x00000002
576 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
577 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
578 #define OSC_PCI_MSI_SUPPORT 0x00000010
579 #define OSC_PCI_EDR_SUPPORT 0x00000080
580 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100
581 #define OSC_PCI_SUPPORT_MASKS 0x0000019f
582
583 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
584 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
585 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
586 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
587 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
588 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
589 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020
590 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080
591 #define OSC_PCI_CONTROL_MASKS 0x000000bf
592
593 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
594 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
595 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
596 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
597 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
598 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
599 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
600 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
601 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
602 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
603
604 /* Enable _OST when all relevant hotplug operations are enabled */
605 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
606 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
607 defined(CONFIG_ACPI_CONTAINER)
608 #define ACPI_HOTPLUG_OST
609 #endif
610
611 /* _OST Source Event Code (OSPM Action) */
612 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
613 #define ACPI_OST_EC_OSPM_EJECT 0x103
614 #define ACPI_OST_EC_OSPM_INSERTION 0x200
615
616 /* _OST General Processing Status Code */
617 #define ACPI_OST_SC_SUCCESS 0x0
618 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
619 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
620
621 /* _OST OS Shutdown Processing (0x100) Status Code */
622 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
623 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
624 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
625 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
626
627 /* _OST Ejection Request (0x3, 0x103) Status Code */
628 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
629 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
630 #define ACPI_OST_SC_DEVICE_BUSY 0x82
631 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
632 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
633
634 /* _OST Insertion Request (0x200) Status Code */
635 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
636 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
637 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
638
639 enum acpi_predicate {
640 all_versions,
641 less_than_or_equal,
642 equal,
643 greater_than_or_equal,
644 };
645
646 /* Table must be terminted by a NULL entry */
647 struct acpi_platform_list {
648 char oem_id[ACPI_OEM_ID_SIZE+1];
649 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
650 u32 oem_revision;
651 char *table;
652 enum acpi_predicate pred;
653 char *reason;
654 u32 data;
655 };
656 int acpi_match_platform_list(const struct acpi_platform_list *plat);
657
658 extern void acpi_early_init(void);
659 extern void acpi_subsystem_init(void);
660 extern void arch_post_acpi_subsys_init(void);
661
662 extern int acpi_nvs_register(__u64 start, __u64 size);
663
664 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
665 void *data);
666
667 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
668 const struct device *dev);
669
670 const void *acpi_device_get_match_data(const struct device *dev);
671 extern bool acpi_driver_match_device(struct device *dev,
672 const struct device_driver *drv);
673 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
674 int acpi_device_modalias(struct device *, char *, int);
675
676 struct platform_device *acpi_create_platform_device(struct acpi_device *,
677 struct property_entry *);
678 #define ACPI_PTR(_ptr) (_ptr)
679
acpi_device_set_enumerated(struct acpi_device * adev)680 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
681 {
682 adev->flags.visited = true;
683 }
684
acpi_device_clear_enumerated(struct acpi_device * adev)685 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
686 {
687 adev->flags.visited = false;
688 }
689
690 enum acpi_reconfig_event {
691 ACPI_RECONFIG_DEVICE_ADD = 0,
692 ACPI_RECONFIG_DEVICE_REMOVE,
693 };
694
695 int acpi_reconfig_notifier_register(struct notifier_block *nb);
696 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
697
698 #ifdef CONFIG_ACPI_GTDT
699 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
700 int acpi_gtdt_map_ppi(int type);
701 bool acpi_gtdt_c3stop(int type);
702 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
703 #endif
704
705 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER
acpi_arch_set_root_pointer(u64 addr)706 static inline void acpi_arch_set_root_pointer(u64 addr)
707 {
708 }
709 #endif
710
711 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
acpi_arch_get_root_pointer(void)712 static inline u64 acpi_arch_get_root_pointer(void)
713 {
714 return 0;
715 }
716 #endif
717
718 int acpi_get_local_address(acpi_handle handle, u32 *addr);
719
720 #else /* !CONFIG_ACPI */
721
722 #define acpi_disabled 1
723
724 #define ACPI_COMPANION(dev) (NULL)
725 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
726 #define ACPI_HANDLE(dev) (NULL)
727 #define ACPI_HANDLE_FWNODE(fwnode) (NULL)
728 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
729
730 #include <acpi/acpi_numa.h>
731
732 struct fwnode_handle;
733
acpi_dev_found(const char * hid)734 static inline bool acpi_dev_found(const char *hid)
735 {
736 return false;
737 }
738
acpi_dev_present(const char * hid,const char * uid,s64 hrv)739 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
740 {
741 return false;
742 }
743
744 struct acpi_device;
745
746 static inline bool
acpi_dev_hid_uid_match(struct acpi_device * adev,const char * hid2,const char * uid2)747 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2)
748 {
749 return false;
750 }
751
752 static inline struct acpi_device *
acpi_dev_get_first_match_dev(const char * hid,const char * uid,s64 hrv)753 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
754 {
755 return NULL;
756 }
757
acpi_reduced_hardware(void)758 static inline bool acpi_reduced_hardware(void)
759 {
760 return false;
761 }
762
acpi_dev_put(struct acpi_device * adev)763 static inline void acpi_dev_put(struct acpi_device *adev) {}
764
is_acpi_node(const struct fwnode_handle * fwnode)765 static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
766 {
767 return false;
768 }
769
is_acpi_device_node(const struct fwnode_handle * fwnode)770 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode)
771 {
772 return false;
773 }
774
to_acpi_device_node(const struct fwnode_handle * fwnode)775 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode)
776 {
777 return NULL;
778 }
779
is_acpi_data_node(const struct fwnode_handle * fwnode)780 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode)
781 {
782 return false;
783 }
784
to_acpi_data_node(const struct fwnode_handle * fwnode)785 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode)
786 {
787 return NULL;
788 }
789
acpi_data_node_match(const struct fwnode_handle * fwnode,const char * name)790 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode,
791 const char *name)
792 {
793 return false;
794 }
795
acpi_fwnode_handle(struct acpi_device * adev)796 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
797 {
798 return NULL;
799 }
800
has_acpi_companion(struct device * dev)801 static inline bool has_acpi_companion(struct device *dev)
802 {
803 return false;
804 }
805
acpi_preset_companion(struct device * dev,struct acpi_device * parent,u64 addr)806 static inline void acpi_preset_companion(struct device *dev,
807 struct acpi_device *parent, u64 addr)
808 {
809 }
810
acpi_dev_name(struct acpi_device * adev)811 static inline const char *acpi_dev_name(struct acpi_device *adev)
812 {
813 return NULL;
814 }
815
acpi_get_first_physical_node(struct acpi_device * adev)816 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
817 {
818 return NULL;
819 }
820
acpi_early_init(void)821 static inline void acpi_early_init(void) { }
acpi_subsystem_init(void)822 static inline void acpi_subsystem_init(void) { }
823
early_acpi_boot_init(void)824 static inline int early_acpi_boot_init(void)
825 {
826 return 0;
827 }
acpi_boot_init(void)828 static inline int acpi_boot_init(void)
829 {
830 return 0;
831 }
832
acpi_boot_table_prepare(void)833 static inline void acpi_boot_table_prepare(void)
834 {
835 }
836
acpi_boot_table_init(void)837 static inline void acpi_boot_table_init(void)
838 {
839 }
840
acpi_mps_check(void)841 static inline int acpi_mps_check(void)
842 {
843 return 0;
844 }
845
acpi_check_resource_conflict(struct resource * res)846 static inline int acpi_check_resource_conflict(struct resource *res)
847 {
848 return 0;
849 }
850
acpi_check_region(resource_size_t start,resource_size_t n,const char * name)851 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
852 const char *name)
853 {
854 return 0;
855 }
856
857 struct acpi_table_header;
acpi_table_parse(char * id,int (* handler)(struct acpi_table_header *))858 static inline int acpi_table_parse(char *id,
859 int (*handler)(struct acpi_table_header *))
860 {
861 return -ENODEV;
862 }
863
acpi_nvs_register(__u64 start,__u64 size)864 static inline int acpi_nvs_register(__u64 start, __u64 size)
865 {
866 return 0;
867 }
868
acpi_nvs_for_each_region(int (* func)(__u64,__u64,void *),void * data)869 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
870 void *data)
871 {
872 return 0;
873 }
874
875 struct acpi_device_id;
876
acpi_match_device(const struct acpi_device_id * ids,const struct device * dev)877 static inline const struct acpi_device_id *acpi_match_device(
878 const struct acpi_device_id *ids, const struct device *dev)
879 {
880 return NULL;
881 }
882
acpi_device_get_match_data(const struct device * dev)883 static inline const void *acpi_device_get_match_data(const struct device *dev)
884 {
885 return NULL;
886 }
887
acpi_driver_match_device(struct device * dev,const struct device_driver * drv)888 static inline bool acpi_driver_match_device(struct device *dev,
889 const struct device_driver *drv)
890 {
891 return false;
892 }
893
acpi_evaluate_dsm(acpi_handle handle,const guid_t * guid,u64 rev,u64 func,union acpi_object * argv4)894 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
895 const guid_t *guid,
896 u64 rev, u64 func,
897 union acpi_object *argv4)
898 {
899 return NULL;
900 }
901
acpi_device_uevent_modalias(struct device * dev,struct kobj_uevent_env * env)902 static inline int acpi_device_uevent_modalias(struct device *dev,
903 struct kobj_uevent_env *env)
904 {
905 return -ENODEV;
906 }
907
acpi_device_modalias(struct device * dev,char * buf,int size)908 static inline int acpi_device_modalias(struct device *dev,
909 char *buf, int size)
910 {
911 return -ENODEV;
912 }
913
914 static inline struct platform_device *
acpi_create_platform_device(struct acpi_device * adev,struct property_entry * properties)915 acpi_create_platform_device(struct acpi_device *adev,
916 struct property_entry *properties)
917 {
918 return NULL;
919 }
920
acpi_dma_supported(const struct acpi_device * adev)921 static inline bool acpi_dma_supported(const struct acpi_device *adev)
922 {
923 return false;
924 }
925
acpi_get_dma_attr(struct acpi_device * adev)926 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
927 {
928 return DEV_DMA_NOT_SUPPORTED;
929 }
930
acpi_dma_get_range(struct device * dev,u64 * dma_addr,u64 * offset,u64 * size)931 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr,
932 u64 *offset, u64 *size)
933 {
934 return -ENODEV;
935 }
936
acpi_dma_configure(struct device * dev,enum dev_dma_attr attr)937 static inline int acpi_dma_configure(struct device *dev,
938 enum dev_dma_attr attr)
939 {
940 return 0;
941 }
942
acpi_dma_configure_id(struct device * dev,enum dev_dma_attr attr,const u32 * input_id)943 static inline int acpi_dma_configure_id(struct device *dev,
944 enum dev_dma_attr attr,
945 const u32 *input_id)
946 {
947 return 0;
948 }
949
950 #define ACPI_PTR(_ptr) (NULL)
951
acpi_device_set_enumerated(struct acpi_device * adev)952 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
953 {
954 }
955
acpi_device_clear_enumerated(struct acpi_device * adev)956 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
957 {
958 }
959
acpi_reconfig_notifier_register(struct notifier_block * nb)960 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
961 {
962 return -EINVAL;
963 }
964
acpi_reconfig_notifier_unregister(struct notifier_block * nb)965 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
966 {
967 return -EINVAL;
968 }
969
acpi_resource_consumer(struct resource * res)970 static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
971 {
972 return NULL;
973 }
974
acpi_get_local_address(acpi_handle handle,u32 * addr)975 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr)
976 {
977 return -ENODEV;
978 }
979
acpi_register_wakeup_handler(int wake_irq,bool (* wakeup)(void * context),void * context)980 static inline int acpi_register_wakeup_handler(int wake_irq,
981 bool (*wakeup)(void *context), void *context)
982 {
983 return -ENXIO;
984 }
985
acpi_unregister_wakeup_handler(bool (* wakeup)(void * context),void * context)986 static inline void acpi_unregister_wakeup_handler(
987 bool (*wakeup)(void *context), void *context) { }
988
989 #endif /* !CONFIG_ACPI */
990
991 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
992 int acpi_ioapic_add(acpi_handle root);
993 #else
acpi_ioapic_add(acpi_handle root)994 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
995 #endif
996
997 #ifdef CONFIG_ACPI
998 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
999 u32 pm1a_ctrl, u32 pm1b_ctrl));
1000
1001 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
1002 u32 pm1a_control, u32 pm1b_control);
1003
1004 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
1005 u32 val_a, u32 val_b));
1006
1007 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
1008 u32 val_a, u32 val_b);
1009 #ifdef CONFIG_X86
1010 struct acpi_s2idle_dev_ops {
1011 struct list_head list_node;
1012 void (*prepare)(void);
1013 void (*restore)(void);
1014 };
1015 int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1016 void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1017 #endif /* CONFIG_X86 */
1018 #ifndef CONFIG_IA64
1019 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
1020 #else
arch_reserve_mem_area(acpi_physical_address addr,size_t size)1021 static inline void arch_reserve_mem_area(acpi_physical_address addr,
1022 size_t size)
1023 {
1024 }
1025 #endif /* CONFIG_X86 */
1026 #else
1027 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
1028 #endif
1029
1030 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
1031 int acpi_dev_suspend(struct device *dev, bool wakeup);
1032 int acpi_dev_resume(struct device *dev);
1033 int acpi_subsys_runtime_suspend(struct device *dev);
1034 int acpi_subsys_runtime_resume(struct device *dev);
1035 int acpi_dev_pm_attach(struct device *dev, bool power_on);
1036 bool acpi_storage_d3(struct device *dev);
1037 #else
acpi_subsys_runtime_suspend(struct device * dev)1038 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
acpi_subsys_runtime_resume(struct device * dev)1039 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
acpi_dev_pm_attach(struct device * dev,bool power_on)1040 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
1041 {
1042 return 0;
1043 }
acpi_storage_d3(struct device * dev)1044 static inline bool acpi_storage_d3(struct device *dev)
1045 {
1046 return false;
1047 }
1048 #endif
1049
1050 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
1051 int acpi_subsys_prepare(struct device *dev);
1052 void acpi_subsys_complete(struct device *dev);
1053 int acpi_subsys_suspend_late(struct device *dev);
1054 int acpi_subsys_suspend_noirq(struct device *dev);
1055 int acpi_subsys_suspend(struct device *dev);
1056 int acpi_subsys_freeze(struct device *dev);
1057 int acpi_subsys_poweroff(struct device *dev);
1058 void acpi_ec_mark_gpe_for_wake(void);
1059 void acpi_ec_set_gpe_wake_mask(u8 action);
1060 #else
acpi_subsys_prepare(struct device * dev)1061 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
acpi_subsys_complete(struct device * dev)1062 static inline void acpi_subsys_complete(struct device *dev) {}
acpi_subsys_suspend_late(struct device * dev)1063 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
acpi_subsys_suspend_noirq(struct device * dev)1064 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
acpi_subsys_suspend(struct device * dev)1065 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
acpi_subsys_freeze(struct device * dev)1066 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
acpi_subsys_poweroff(struct device * dev)1067 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; }
acpi_ec_mark_gpe_for_wake(void)1068 static inline void acpi_ec_mark_gpe_for_wake(void) {}
acpi_ec_set_gpe_wake_mask(u8 action)1069 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {}
1070 #endif
1071
1072 #ifdef CONFIG_ACPI
1073 __printf(3, 4)
1074 void acpi_handle_printk(const char *level, acpi_handle handle,
1075 const char *fmt, ...);
1076 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name,
1077 acpi_status status);
1078 #else /* !CONFIG_ACPI */
1079 static inline __printf(3, 4) void
acpi_handle_printk(const char * level,void * handle,const char * fmt,...)1080 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
acpi_evaluation_failure_warn(acpi_handle handle,const char * name,acpi_status status)1081 static inline void acpi_evaluation_failure_warn(acpi_handle handle,
1082 const char *name,
1083 acpi_status status) {}
1084 #endif /* !CONFIG_ACPI */
1085
1086 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
1087 __printf(3, 4)
1088 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
1089 #endif
1090
1091 /*
1092 * acpi_handle_<level>: Print message with ACPI prefix and object path
1093 *
1094 * These interfaces acquire the global namespace mutex to obtain an object
1095 * path. In interrupt context, it shows the object path as <n/a>.
1096 */
1097 #define acpi_handle_emerg(handle, fmt, ...) \
1098 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
1099 #define acpi_handle_alert(handle, fmt, ...) \
1100 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
1101 #define acpi_handle_crit(handle, fmt, ...) \
1102 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
1103 #define acpi_handle_err(handle, fmt, ...) \
1104 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
1105 #define acpi_handle_warn(handle, fmt, ...) \
1106 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
1107 #define acpi_handle_notice(handle, fmt, ...) \
1108 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
1109 #define acpi_handle_info(handle, fmt, ...) \
1110 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
1111
1112 #if defined(DEBUG)
1113 #define acpi_handle_debug(handle, fmt, ...) \
1114 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
1115 #else
1116 #if defined(CONFIG_DYNAMIC_DEBUG)
1117 #define acpi_handle_debug(handle, fmt, ...) \
1118 _dynamic_func_call(fmt, __acpi_handle_debug, \
1119 handle, pr_fmt(fmt), ##__VA_ARGS__)
1120 #else
1121 #define acpi_handle_debug(handle, fmt, ...) \
1122 ({ \
1123 if (0) \
1124 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
1125 0; \
1126 })
1127 #endif
1128 #endif
1129
1130 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1131 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1132 struct acpi_resource_gpio **agpio);
1133 bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1134 struct acpi_resource_gpio **agpio);
1135 int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index);
1136 #else
acpi_gpio_get_irq_resource(struct acpi_resource * ares,struct acpi_resource_gpio ** agpio)1137 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1138 struct acpi_resource_gpio **agpio)
1139 {
1140 return false;
1141 }
acpi_gpio_get_io_resource(struct acpi_resource * ares,struct acpi_resource_gpio ** agpio)1142 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1143 struct acpi_resource_gpio **agpio)
1144 {
1145 return false;
1146 }
acpi_dev_gpio_irq_get_by(struct acpi_device * adev,const char * name,int index)1147 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev,
1148 const char *name, int index)
1149 {
1150 return -ENXIO;
1151 }
1152 #endif
1153
acpi_dev_gpio_irq_get(struct acpi_device * adev,int index)1154 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1155 {
1156 return acpi_dev_gpio_irq_get_by(adev, NULL, index);
1157 }
1158
1159 /* Device properties */
1160
1161 #ifdef CONFIG_ACPI
1162 int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1163 acpi_object_type type, const union acpi_object **obj);
1164 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1165 const char *name, size_t index, size_t num_args,
1166 struct fwnode_reference_args *args);
1167
acpi_node_get_property_reference(const struct fwnode_handle * fwnode,const char * name,size_t index,struct fwnode_reference_args * args)1168 static inline int acpi_node_get_property_reference(
1169 const struct fwnode_handle *fwnode,
1170 const char *name, size_t index,
1171 struct fwnode_reference_args *args)
1172 {
1173 return __acpi_node_get_property_reference(fwnode, name, index,
1174 NR_FWNODE_REFERENCE_ARGS, args);
1175 }
1176
acpi_dev_has_props(const struct acpi_device * adev)1177 static inline bool acpi_dev_has_props(const struct acpi_device *adev)
1178 {
1179 return !list_empty(&adev->data.properties);
1180 }
1181
1182 struct acpi_device_properties *
1183 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid,
1184 const union acpi_object *properties);
1185
1186 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1187 void **valptr);
1188
1189 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1190 struct fwnode_handle *child);
1191 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode);
1192
1193 struct acpi_probe_entry;
1194 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1195 struct acpi_probe_entry *);
1196
1197 #define ACPI_TABLE_ID_LEN 5
1198
1199 /**
1200 * struct acpi_probe_entry - boot-time probing entry
1201 * @id: ACPI table name
1202 * @type: Optional subtable type to match
1203 * (if @id contains subtables)
1204 * @subtable_valid: Optional callback to check the validity of
1205 * the subtable
1206 * @probe_table: Callback to the driver being probed when table
1207 * match is successful
1208 * @probe_subtbl: Callback to the driver being probed when table and
1209 * subtable match (and optional callback is successful)
1210 * @driver_data: Sideband data provided back to the driver
1211 */
1212 struct acpi_probe_entry {
1213 __u8 id[ACPI_TABLE_ID_LEN];
1214 __u8 type;
1215 acpi_probe_entry_validate_subtbl subtable_valid;
1216 union {
1217 acpi_tbl_table_handler probe_table;
1218 acpi_tbl_entry_handler probe_subtbl;
1219 };
1220 kernel_ulong_t driver_data;
1221 };
1222
1223 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \
1224 valid, data, fn) \
1225 static const struct acpi_probe_entry __acpi_probe_##name \
1226 __used __section("__" #table "_acpi_probe_table") = { \
1227 .id = table_id, \
1228 .type = subtable, \
1229 .subtable_valid = valid, \
1230 .probe_table = fn, \
1231 .driver_data = data, \
1232 }
1233
1234 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \
1235 subtable, valid, data, fn) \
1236 static const struct acpi_probe_entry __acpi_probe_##name \
1237 __used __section("__" #table "_acpi_probe_table") = { \
1238 .id = table_id, \
1239 .type = subtable, \
1240 .subtable_valid = valid, \
1241 .probe_subtbl = fn, \
1242 .driver_data = data, \
1243 }
1244
1245 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1246 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1247
1248 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1249
1250 #define acpi_probe_device_table(t) \
1251 ({ \
1252 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1253 ACPI_PROBE_TABLE_END(t); \
1254 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1255 (&ACPI_PROBE_TABLE_END(t) - \
1256 &ACPI_PROBE_TABLE(t))); \
1257 })
1258 #else
acpi_dev_get_property(struct acpi_device * adev,const char * name,acpi_object_type type,const union acpi_object ** obj)1259 static inline int acpi_dev_get_property(struct acpi_device *adev,
1260 const char *name, acpi_object_type type,
1261 const union acpi_object **obj)
1262 {
1263 return -ENXIO;
1264 }
1265
1266 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)1267 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1268 const char *name, size_t index, size_t num_args,
1269 struct fwnode_reference_args *args)
1270 {
1271 return -ENXIO;
1272 }
1273
1274 static inline int
acpi_node_get_property_reference(const struct fwnode_handle * fwnode,const char * name,size_t index,struct fwnode_reference_args * args)1275 acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1276 const char *name, size_t index,
1277 struct fwnode_reference_args *args)
1278 {
1279 return -ENXIO;
1280 }
1281
acpi_node_prop_get(const struct fwnode_handle * fwnode,const char * propname,void ** valptr)1282 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1283 const char *propname,
1284 void **valptr)
1285 {
1286 return -ENXIO;
1287 }
1288
1289 static inline struct fwnode_handle *
acpi_get_next_subnode(const struct fwnode_handle * fwnode,struct fwnode_handle * child)1290 acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1291 struct fwnode_handle *child)
1292 {
1293 return NULL;
1294 }
1295
1296 static inline struct fwnode_handle *
acpi_node_get_parent(const struct fwnode_handle * fwnode)1297 acpi_node_get_parent(const struct fwnode_handle *fwnode)
1298 {
1299 return NULL;
1300 }
1301
1302 static inline struct fwnode_handle *
acpi_graph_get_next_endpoint(const struct fwnode_handle * fwnode,struct fwnode_handle * prev)1303 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1304 struct fwnode_handle *prev)
1305 {
1306 return ERR_PTR(-ENXIO);
1307 }
1308
1309 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)1310 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1311 struct fwnode_handle **remote,
1312 struct fwnode_handle **port,
1313 struct fwnode_handle **endpoint)
1314 {
1315 return -ENXIO;
1316 }
1317
1318 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1319 static const void * __acpi_table_##name[] \
1320 __attribute__((unused)) \
1321 = { (void *) table_id, \
1322 (void *) subtable, \
1323 (void *) valid, \
1324 (void *) fn, \
1325 (void *) data }
1326
1327 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1328 #endif
1329
1330 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1331 void acpi_table_upgrade(void);
1332 #else
acpi_table_upgrade(void)1333 static inline void acpi_table_upgrade(void) { }
1334 #endif
1335
1336 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1337 extern bool acpi_has_watchdog(void);
1338 #else
acpi_has_watchdog(void)1339 static inline bool acpi_has_watchdog(void) { return false; }
1340 #endif
1341
1342 #ifdef CONFIG_ACPI_SPCR_TABLE
1343 extern bool qdf2400_e44_present;
1344 int acpi_parse_spcr(bool enable_earlycon, bool enable_console);
1345 #else
acpi_parse_spcr(bool enable_earlycon,bool enable_console)1346 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console)
1347 {
1348 return 0;
1349 }
1350 #endif
1351
1352 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1353 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1354 #else
1355 static inline
acpi_irq_get(acpi_handle handle,unsigned int index,struct resource * res)1356 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1357 {
1358 return -EINVAL;
1359 }
1360 #endif
1361
1362 #ifdef CONFIG_ACPI_LPIT
1363 int lpit_read_residency_count_address(u64 *address);
1364 #else
lpit_read_residency_count_address(u64 * address)1365 static inline int lpit_read_residency_count_address(u64 *address)
1366 {
1367 return -EINVAL;
1368 }
1369 #endif
1370
1371 #ifdef CONFIG_ACPI_PPTT
1372 int acpi_pptt_cpu_is_thread(unsigned int cpu);
1373 int find_acpi_cpu_topology(unsigned int cpu, int level);
1374 int find_acpi_cpu_topology_package(unsigned int cpu);
1375 int find_acpi_cpu_topology_hetero_id(unsigned int cpu);
1376 int find_acpi_cpu_cache_topology(unsigned int cpu, int level);
1377 #else
acpi_pptt_cpu_is_thread(unsigned int cpu)1378 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu)
1379 {
1380 return -EINVAL;
1381 }
find_acpi_cpu_topology(unsigned int cpu,int level)1382 static inline int find_acpi_cpu_topology(unsigned int cpu, int level)
1383 {
1384 return -EINVAL;
1385 }
find_acpi_cpu_topology_package(unsigned int cpu)1386 static inline int find_acpi_cpu_topology_package(unsigned int cpu)
1387 {
1388 return -EINVAL;
1389 }
find_acpi_cpu_topology_hetero_id(unsigned int cpu)1390 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu)
1391 {
1392 return -EINVAL;
1393 }
find_acpi_cpu_cache_topology(unsigned int cpu,int level)1394 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level)
1395 {
1396 return -EINVAL;
1397 }
1398 #endif
1399
1400 #ifdef CONFIG_ACPI
1401 extern void acpi_device_notify(struct device *dev);
1402 extern void acpi_device_notify_remove(struct device *dev);
1403 #else
acpi_device_notify(struct device * dev)1404 static inline void acpi_device_notify(struct device *dev) { }
acpi_device_notify_remove(struct device * dev)1405 static inline void acpi_device_notify_remove(struct device *dev) { }
1406 #endif
1407
1408 #endif /*_LINUX_ACPI_H*/
1409