1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * acpi.h - ACPI Interface
5 * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
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>
22 #include <acpi/acpi.h>
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>
32 #include <acpi/acpi_bus.h>
33 #include <acpi/acpi_drivers.h>
34 #include <acpi/acpi_numa.h>
35 #include <acpi/acpi_io.h>
38 static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
40 return adev ? adev->handle : NULL;
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))
50 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void)
52 struct fwnode_handle *fwnode;
54 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL);
58 fwnode_init(fwnode, &acpi_static_fwnode_ops);
63 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode)
65 if (WARN_ON(!is_acpi_static_node(fwnode)))
72 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
73 * the PCI-defined class-code information
75 * @_cls : the class, subclass, prog-if triple for this device
76 * @_msk : the class mask for this device
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.
82 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
84 static inline bool has_acpi_companion(struct device *dev)
86 return is_acpi_device_node(dev->fwnode);
89 static inline void acpi_preset_companion(struct device *dev,
90 struct acpi_device *parent, u64 addr)
92 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false));
95 static inline const char *acpi_dev_name(struct acpi_device *adev)
97 return dev_name(&adev->dev);
100 struct device *acpi_get_first_physical_node(struct acpi_device *adev);
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,
111 extern enum acpi_irq_model_id acpi_irq_model;
113 enum acpi_interrupt_id {
114 ACPI_INTERRUPT_PMI = 1,
120 #define ACPI_SPACE_MEM 0
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
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 struct acpi_cedt_header cedt;
139 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
141 typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header,
142 const unsigned long end);
144 typedef int (*acpi_tbl_entry_handler_arg)(union acpi_subtable_headers *header,
145 void *arg, const unsigned long end);
147 /* Debugger support */
149 struct acpi_debugger_ops {
150 int (*create_thread)(acpi_osd_exec_callback function, void *context);
151 ssize_t (*write_log)(const char *msg);
152 ssize_t (*read_cmd)(char *buffer, size_t length);
153 int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
154 int (*notify_command_complete)(void);
157 struct acpi_debugger {
158 const struct acpi_debugger_ops *ops;
159 struct module *owner;
163 #ifdef CONFIG_ACPI_DEBUGGER
164 int __init acpi_debugger_init(void);
165 int acpi_register_debugger(struct module *owner,
166 const struct acpi_debugger_ops *ops);
167 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
168 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
169 ssize_t acpi_debugger_write_log(const char *msg);
170 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
171 int acpi_debugger_wait_command_ready(void);
172 int acpi_debugger_notify_command_complete(void);
174 static inline int acpi_debugger_init(void)
179 static inline int acpi_register_debugger(struct module *owner,
180 const struct acpi_debugger_ops *ops)
185 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
189 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
195 static inline int acpi_debugger_write_log(const char *msg)
200 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
205 static inline int acpi_debugger_wait_command_ready(void)
210 static inline int acpi_debugger_notify_command_complete(void)
216 #define BAD_MADT_ENTRY(entry, end) ( \
217 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
218 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
220 struct acpi_subtable_proc {
222 acpi_tbl_entry_handler handler;
223 acpi_tbl_entry_handler_arg handler_arg;
228 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size);
229 void __acpi_unmap_table(void __iomem *map, unsigned long size);
230 int early_acpi_boot_init(void);
231 int acpi_boot_init (void);
232 void acpi_boot_table_prepare (void);
233 void acpi_boot_table_init (void);
234 int acpi_mps_check (void);
235 int acpi_numa_init (void);
237 int acpi_locate_initial_tables (void);
238 void acpi_reserve_initial_tables (void);
239 void acpi_table_init_complete (void);
240 int acpi_table_init (void);
242 #ifdef CONFIG_ACPI_TABLE_LIB
243 #define EXPORT_SYMBOL_ACPI_LIB(x) EXPORT_SYMBOL_NS_GPL(x, ACPI)
244 #define __init_or_acpilib
245 #define __initdata_or_acpilib
247 #define EXPORT_SYMBOL_ACPI_LIB(x)
248 #define __init_or_acpilib __init
249 #define __initdata_or_acpilib __initdata
252 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
253 int __init_or_acpilib acpi_table_parse_entries(char *id,
254 unsigned long table_size, int entry_id,
255 acpi_tbl_entry_handler handler, unsigned int max_entries);
256 int __init_or_acpilib acpi_table_parse_entries_array(char *id,
257 unsigned long table_size, struct acpi_subtable_proc *proc,
258 int proc_num, unsigned int max_entries);
259 int acpi_table_parse_madt(enum acpi_madt_type id,
260 acpi_tbl_entry_handler handler,
261 unsigned int max_entries);
262 int __init_or_acpilib
263 acpi_table_parse_cedt(enum acpi_cedt_type id,
264 acpi_tbl_entry_handler_arg handler_arg, void *arg);
266 int acpi_parse_mcfg (struct acpi_table_header *header);
267 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
269 /* the following numa functions are architecture-dependent */
270 void acpi_numa_slit_init (struct acpi_table_slit *slit);
272 #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH)
273 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
276 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
279 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
282 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
283 void acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size);
286 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
288 acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size) { }
291 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
293 #ifndef PHYS_CPUID_INVALID
294 typedef u32 phys_cpuid_t;
295 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
298 static inline bool invalid_logical_cpuid(u32 cpuid)
300 return (int)cpuid < 0;
303 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
305 return phys_id == PHYS_CPUID_INVALID;
308 /* Validate the processor object's proc_id */
309 bool acpi_duplicate_processor_id(int proc_id);
310 /* Processor _CTS control */
311 struct acpi_processor_power;
313 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE
314 bool acpi_processor_claim_cst_control(void);
315 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
316 struct acpi_processor_power *info);
318 static inline bool acpi_processor_claim_cst_control(void) { return false; }
319 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
320 struct acpi_processor_power *info)
326 #ifdef CONFIG_ACPI_HOTPLUG_CPU
327 /* Arch dependent functions for cpu hotplug support */
328 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
330 int acpi_unmap_cpu(int cpu);
331 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
333 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
334 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
337 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
338 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
339 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
340 void acpi_irq_stats_init(void);
341 extern u32 acpi_irq_handled;
342 extern u32 acpi_irq_not_handled;
343 extern unsigned int acpi_sci_irq;
344 extern bool acpi_no_s5;
345 #define INVALID_ACPI_IRQ ((unsigned)-1)
346 static inline bool acpi_sci_irq_valid(void)
348 return acpi_sci_irq != INVALID_ACPI_IRQ;
352 extern unsigned long acpi_realmode_flags;
354 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
355 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
356 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
358 void acpi_set_irq_model(enum acpi_irq_model_id model,
359 struct fwnode_handle *(*)(u32));
361 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags,
363 struct fwnode_handle *fwnode,
364 const struct irq_domain_ops *ops,
367 #ifdef CONFIG_X86_IO_APIC
368 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
370 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
376 * This function undoes the effect of one call to acpi_register_gsi().
377 * If this matches the last registration, any IRQ resources for gsi
380 void acpi_unregister_gsi (u32 gsi);
384 int acpi_pci_irq_enable (struct pci_dev *dev);
385 void acpi_penalize_isa_irq(int irq, int active);
386 bool acpi_isa_irq_available(int irq);
388 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
390 static inline void acpi_penalize_sci_irq(int irq, int trigger,
395 void acpi_pci_irq_disable (struct pci_dev *dev);
397 extern int ec_read(u8 addr, u8 *val);
398 extern int ec_write(u8 addr, u8 val);
399 extern int ec_transaction(u8 command,
400 const u8 *wdata, unsigned wdata_len,
401 u8 *rdata, unsigned rdata_len);
402 extern acpi_handle ec_get_handle(void);
404 extern bool acpi_is_pnp_device(struct acpi_device *);
406 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
408 typedef void (*wmi_notify_handler) (u32 value, void *context);
410 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
412 const struct acpi_buffer *in,
413 struct acpi_buffer *out);
414 extern acpi_status wmi_query_block(const char *guid, u8 instance,
415 struct acpi_buffer *out);
416 extern acpi_status wmi_set_block(const char *guid, u8 instance,
417 const struct acpi_buffer *in);
418 extern acpi_status wmi_install_notify_handler(const char *guid,
419 wmi_notify_handler handler, void *data);
420 extern acpi_status wmi_remove_notify_handler(const char *guid);
421 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
422 extern bool wmi_has_guid(const char *guid);
423 extern char *wmi_get_acpi_device_uid(const char *guid);
425 #endif /* CONFIG_ACPI_WMI */
427 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
428 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
429 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
430 #define ACPI_VIDEO_BACKLIGHT 0x0008
431 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
432 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
433 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
434 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
435 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
436 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
437 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
438 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
440 extern char acpi_video_backlight_string[];
441 extern long acpi_is_video_device(acpi_handle handle);
442 extern int acpi_blacklisted(void);
443 extern void acpi_osi_setup(char *str);
444 extern bool acpi_osi_is_win8(void);
446 #ifdef CONFIG_ACPI_NUMA
447 int acpi_map_pxm_to_node(int pxm);
448 int acpi_get_node(acpi_handle handle);
451 * pxm_to_online_node - Map proximity ID to online node
452 * @pxm: ACPI proximity ID
454 * This is similar to pxm_to_node(), but always returns an online
455 * node. When the mapped node from a given proximity ID is offline, it
456 * looks up the node distance table and returns the nearest online node.
458 * ACPI device drivers, which are called after the NUMA initialization has
459 * completed in the kernel, can call this interface to obtain their device
460 * NUMA topology from ACPI tables. Such drivers do not have to deal with
461 * offline nodes. A node may be offline when SRAT memory entry does not exist,
462 * or NUMA is disabled, ex. "numa=off" on x86.
464 static inline int pxm_to_online_node(int pxm)
466 int node = pxm_to_node(pxm);
468 return numa_map_to_online_node(node);
471 static inline int pxm_to_online_node(int pxm)
475 static inline int acpi_map_pxm_to_node(int pxm)
479 static inline int acpi_get_node(acpi_handle handle)
484 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
486 extern int pnpacpi_disabled;
488 #define PXM_INVAL (-1)
490 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
491 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
492 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
493 struct resource_win *win);
494 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
495 struct resource_win *win);
496 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
497 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
498 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
499 struct resource *res);
501 void acpi_dev_free_resource_list(struct list_head *list);
502 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
503 int (*preproc)(struct acpi_resource *, void *),
505 int acpi_dev_get_dma_resources(struct acpi_device *adev,
506 struct list_head *list);
507 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
508 unsigned long types);
510 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
513 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
516 struct acpi_device *acpi_resource_consumer(struct resource *res);
518 int acpi_check_resource_conflict(const struct resource *res);
520 int acpi_check_region(resource_size_t start, resource_size_t n,
523 int acpi_resources_are_enforced(void);
525 #ifdef CONFIG_HIBERNATION
526 extern int acpi_check_s4_hw_signature;
529 #ifdef CONFIG_PM_SLEEP
530 void __init acpi_old_suspend_ordering(void);
531 void __init acpi_nvs_nosave(void);
532 void __init acpi_nvs_nosave_s3(void);
533 void __init acpi_sleep_no_blacklist(void);
534 #endif /* CONFIG_PM_SLEEP */
536 int acpi_register_wakeup_handler(
537 int wake_irq, bool (*wakeup)(void *context), void *context);
538 void acpi_unregister_wakeup_handler(
539 bool (*wakeup)(void *context), void *context);
541 struct acpi_osc_context {
542 char *uuid_str; /* UUID string */
544 struct acpi_buffer cap; /* list of DWORD capabilities */
545 struct acpi_buffer ret; /* free by caller if success */
548 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
550 /* Number of _OSC capability DWORDS depends on bridge type */
551 #define OSC_PCI_CAPABILITY_DWORDS 3
552 #define OSC_CXL_CAPABILITY_DWORDS 5
554 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */
555 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
556 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
557 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
558 #define OSC_EXT_SUPPORT_DWORD 3 /* DWORD 4 */
559 #define OSC_EXT_CONTROL_DWORD 4 /* DWORD 5 */
561 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
562 #define OSC_QUERY_ENABLE 0x00000001 /* input */
563 #define OSC_REQUEST_ERROR 0x00000002 /* return */
564 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
565 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
566 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
568 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
569 #define OSC_SB_PAD_SUPPORT 0x00000001
570 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
571 #define OSC_SB_PR3_SUPPORT 0x00000004
572 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
573 #define OSC_SB_APEI_SUPPORT 0x00000010
574 #define OSC_SB_CPC_SUPPORT 0x00000020
575 #define OSC_SB_CPCV2_SUPPORT 0x00000040
576 #define OSC_SB_PCLPI_SUPPORT 0x00000080
577 #define OSC_SB_OSLPI_SUPPORT 0x00000100
578 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
579 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000
580 #define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000
581 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000
582 #define OSC_SB_PRM_SUPPORT 0x00200000
584 extern bool osc_sb_apei_support_acked;
585 extern bool osc_pc_lpi_support_confirmed;
586 extern bool osc_sb_native_usb4_support_confirmed;
587 extern bool osc_sb_cppc_not_supported;
588 extern bool osc_cpc_flexible_adr_space_confirmed;
590 /* USB4 Capabilities */
591 #define OSC_USB_USB3_TUNNELING 0x00000001
592 #define OSC_USB_DP_TUNNELING 0x00000002
593 #define OSC_USB_PCIE_TUNNELING 0x00000004
594 #define OSC_USB_XDOMAIN 0x00000008
596 extern u32 osc_sb_native_usb4_control;
598 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
599 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
600 #define OSC_PCI_ASPM_SUPPORT 0x00000002
601 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
602 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
603 #define OSC_PCI_MSI_SUPPORT 0x00000010
604 #define OSC_PCI_EDR_SUPPORT 0x00000080
605 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100
607 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
608 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
609 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
610 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
611 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
612 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
613 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020
614 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080
616 /* CXL _OSC: Capabilities DWORD 4: Support Field */
617 #define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001
618 #define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002
619 #define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004
620 #define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008
622 /* CXL _OSC: Capabilities DWORD 5: Control Field */
623 #define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001
625 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context)
627 u32 *ret = context->ret.pointer;
629 return ret[OSC_CONTROL_DWORD];
632 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
634 u32 *ret = context->ret.pointer;
636 return ret[OSC_EXT_CONTROL_DWORD];
639 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
640 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
641 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
642 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
643 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
644 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
645 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
646 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
647 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
648 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
650 /* Enable _OST when all relevant hotplug operations are enabled */
651 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
652 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
653 defined(CONFIG_ACPI_CONTAINER)
654 #define ACPI_HOTPLUG_OST
657 /* _OST Source Event Code (OSPM Action) */
658 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
659 #define ACPI_OST_EC_OSPM_EJECT 0x103
660 #define ACPI_OST_EC_OSPM_INSERTION 0x200
662 /* _OST General Processing Status Code */
663 #define ACPI_OST_SC_SUCCESS 0x0
664 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
665 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
667 /* _OST OS Shutdown Processing (0x100) Status Code */
668 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
669 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
670 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
671 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
673 /* _OST Ejection Request (0x3, 0x103) Status Code */
674 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
675 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
676 #define ACPI_OST_SC_DEVICE_BUSY 0x82
677 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
678 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
680 /* _OST Insertion Request (0x200) Status Code */
681 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
682 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
683 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
685 enum acpi_predicate {
689 greater_than_or_equal,
692 /* Table must be terminted by a NULL entry */
693 struct acpi_platform_list {
694 char oem_id[ACPI_OEM_ID_SIZE+1];
695 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
698 enum acpi_predicate pred;
702 int acpi_match_platform_list(const struct acpi_platform_list *plat);
704 extern void acpi_early_init(void);
705 extern void acpi_subsystem_init(void);
706 extern void arch_post_acpi_subsys_init(void);
708 extern int acpi_nvs_register(__u64 start, __u64 size);
710 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
713 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
714 const struct device *dev);
716 const void *acpi_device_get_match_data(const struct device *dev);
717 extern bool acpi_driver_match_device(struct device *dev,
718 const struct device_driver *drv);
719 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
720 int acpi_device_modalias(struct device *, char *, int);
722 struct platform_device *acpi_create_platform_device(struct acpi_device *,
723 const struct property_entry *);
724 #define ACPI_PTR(_ptr) (_ptr)
726 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
728 adev->flags.visited = true;
731 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
733 adev->flags.visited = false;
736 enum acpi_reconfig_event {
737 ACPI_RECONFIG_DEVICE_ADD = 0,
738 ACPI_RECONFIG_DEVICE_REMOVE,
741 int acpi_reconfig_notifier_register(struct notifier_block *nb);
742 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
744 #ifdef CONFIG_ACPI_GTDT
745 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
746 int acpi_gtdt_map_ppi(int type);
747 bool acpi_gtdt_c3stop(int type);
748 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
751 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER
752 static inline void acpi_arch_set_root_pointer(u64 addr)
757 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
758 static inline u64 acpi_arch_get_root_pointer(void)
764 int acpi_get_local_address(acpi_handle handle, u32 *addr);
766 #else /* !CONFIG_ACPI */
768 #define acpi_disabled 1
770 #define ACPI_COMPANION(dev) (NULL)
771 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
772 #define ACPI_HANDLE(dev) (NULL)
773 #define ACPI_HANDLE_FWNODE(fwnode) (NULL)
774 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
776 #include <acpi/acpi_numa.h>
778 struct fwnode_handle;
780 static inline bool acpi_dev_found(const char *hid)
785 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
793 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2)
798 static inline struct acpi_device *
799 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
804 static inline bool acpi_reduced_hardware(void)
809 static inline void acpi_dev_put(struct acpi_device *adev) {}
811 static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
816 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode)
821 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode)
826 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode)
831 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode)
836 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode,
842 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
847 static inline bool has_acpi_companion(struct device *dev)
852 static inline void acpi_preset_companion(struct device *dev,
853 struct acpi_device *parent, u64 addr)
857 static inline const char *acpi_dev_name(struct acpi_device *adev)
862 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
867 static inline void acpi_early_init(void) { }
868 static inline void acpi_subsystem_init(void) { }
870 static inline int early_acpi_boot_init(void)
874 static inline int acpi_boot_init(void)
879 static inline void acpi_boot_table_prepare(void)
883 static inline void acpi_boot_table_init(void)
887 static inline int acpi_mps_check(void)
892 static inline int acpi_check_resource_conflict(struct resource *res)
897 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
903 struct acpi_table_header;
904 static inline int acpi_table_parse(char *id,
905 int (*handler)(struct acpi_table_header *))
910 static inline int acpi_nvs_register(__u64 start, __u64 size)
915 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
921 struct acpi_device_id;
923 static inline const struct acpi_device_id *acpi_match_device(
924 const struct acpi_device_id *ids, const struct device *dev)
929 static inline const void *acpi_device_get_match_data(const struct device *dev)
934 static inline bool acpi_driver_match_device(struct device *dev,
935 const struct device_driver *drv)
940 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
943 union acpi_object *argv4)
948 static inline int acpi_device_uevent_modalias(struct device *dev,
949 struct kobj_uevent_env *env)
954 static inline int acpi_device_modalias(struct device *dev,
960 static inline struct platform_device *
961 acpi_create_platform_device(struct acpi_device *adev,
962 const struct property_entry *properties)
967 static inline bool acpi_dma_supported(const struct acpi_device *adev)
972 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
974 return DEV_DMA_NOT_SUPPORTED;
977 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr,
978 u64 *offset, u64 *size)
983 static inline int acpi_dma_configure(struct device *dev,
984 enum dev_dma_attr attr)
989 static inline int acpi_dma_configure_id(struct device *dev,
990 enum dev_dma_attr attr,
996 #define ACPI_PTR(_ptr) (NULL)
998 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
1002 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
1006 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
1011 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
1016 static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
1021 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr)
1026 static inline int acpi_register_wakeup_handler(int wake_irq,
1027 bool (*wakeup)(void *context), void *context)
1032 static inline void acpi_unregister_wakeup_handler(
1033 bool (*wakeup)(void *context), void *context) { }
1035 struct acpi_osc_context;
1036 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context)
1041 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
1046 #endif /* !CONFIG_ACPI */
1048 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
1049 int acpi_ioapic_add(acpi_handle root);
1051 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
1055 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
1056 u32 pm1a_ctrl, u32 pm1b_ctrl));
1058 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
1059 u32 pm1a_control, u32 pm1b_control);
1061 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
1062 u32 val_a, u32 val_b));
1064 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
1065 u32 val_a, u32 val_b);
1067 struct acpi_s2idle_dev_ops {
1068 struct list_head list_node;
1069 void (*prepare)(void);
1070 void (*restore)(void);
1072 int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1073 void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1074 #endif /* CONFIG_X86 */
1076 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
1078 static inline void arch_reserve_mem_area(acpi_physical_address addr,
1082 #endif /* CONFIG_X86 */
1084 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
1087 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
1088 int acpi_dev_suspend(struct device *dev, bool wakeup);
1089 int acpi_dev_resume(struct device *dev);
1090 int acpi_subsys_runtime_suspend(struct device *dev);
1091 int acpi_subsys_runtime_resume(struct device *dev);
1092 int acpi_dev_pm_attach(struct device *dev, bool power_on);
1093 bool acpi_storage_d3(struct device *dev);
1094 bool acpi_dev_state_d0(struct device *dev);
1096 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
1097 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
1098 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
1102 static inline bool acpi_storage_d3(struct device *dev)
1106 static inline bool acpi_dev_state_d0(struct device *dev)
1112 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
1113 int acpi_subsys_prepare(struct device *dev);
1114 void acpi_subsys_complete(struct device *dev);
1115 int acpi_subsys_suspend_late(struct device *dev);
1116 int acpi_subsys_suspend_noirq(struct device *dev);
1117 int acpi_subsys_suspend(struct device *dev);
1118 int acpi_subsys_freeze(struct device *dev);
1119 int acpi_subsys_poweroff(struct device *dev);
1120 void acpi_ec_mark_gpe_for_wake(void);
1121 void acpi_ec_set_gpe_wake_mask(u8 action);
1123 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
1124 static inline void acpi_subsys_complete(struct device *dev) {}
1125 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
1126 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
1127 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
1128 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
1129 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; }
1130 static inline void acpi_ec_mark_gpe_for_wake(void) {}
1131 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {}
1136 void acpi_handle_printk(const char *level, acpi_handle handle,
1137 const char *fmt, ...);
1138 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name,
1139 acpi_status status);
1140 #else /* !CONFIG_ACPI */
1141 static inline __printf(3, 4) void
1142 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
1143 static inline void acpi_evaluation_failure_warn(acpi_handle handle,
1145 acpi_status status) {}
1146 #endif /* !CONFIG_ACPI */
1148 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
1150 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
1154 * acpi_handle_<level>: Print message with ACPI prefix and object path
1156 * These interfaces acquire the global namespace mutex to obtain an object
1157 * path. In interrupt context, it shows the object path as <n/a>.
1159 #define acpi_handle_emerg(handle, fmt, ...) \
1160 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
1161 #define acpi_handle_alert(handle, fmt, ...) \
1162 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
1163 #define acpi_handle_crit(handle, fmt, ...) \
1164 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
1165 #define acpi_handle_err(handle, fmt, ...) \
1166 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
1167 #define acpi_handle_warn(handle, fmt, ...) \
1168 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
1169 #define acpi_handle_notice(handle, fmt, ...) \
1170 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
1171 #define acpi_handle_info(handle, fmt, ...) \
1172 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
1175 #define acpi_handle_debug(handle, fmt, ...) \
1176 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
1178 #if defined(CONFIG_DYNAMIC_DEBUG)
1179 #define acpi_handle_debug(handle, fmt, ...) \
1180 _dynamic_func_call(fmt, __acpi_handle_debug, \
1181 handle, pr_fmt(fmt), ##__VA_ARGS__)
1183 #define acpi_handle_debug(handle, fmt, ...) \
1186 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
1192 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1193 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1194 struct acpi_resource_gpio **agpio);
1195 bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1196 struct acpi_resource_gpio **agpio);
1197 int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index);
1199 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1200 struct acpi_resource_gpio **agpio)
1204 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1205 struct acpi_resource_gpio **agpio)
1209 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev,
1210 const char *name, int index)
1216 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1218 return acpi_dev_gpio_irq_get_by(adev, NULL, index);
1221 /* Device properties */
1224 int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1225 acpi_object_type type, const union acpi_object **obj);
1226 int __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);
1230 static inline int acpi_node_get_property_reference(
1231 const struct fwnode_handle *fwnode,
1232 const char *name, size_t index,
1233 struct fwnode_reference_args *args)
1235 return __acpi_node_get_property_reference(fwnode, name, index,
1236 NR_FWNODE_REFERENCE_ARGS, args);
1239 static inline bool acpi_dev_has_props(const struct acpi_device *adev)
1241 return !list_empty(&adev->data.properties);
1244 struct acpi_device_properties *
1245 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid,
1246 const union acpi_object *properties);
1248 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1251 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1252 struct fwnode_handle *child);
1254 struct acpi_probe_entry;
1255 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1256 struct acpi_probe_entry *);
1258 #define ACPI_TABLE_ID_LEN 5
1261 * struct acpi_probe_entry - boot-time probing entry
1262 * @id: ACPI table name
1263 * @type: Optional subtable type to match
1264 * (if @id contains subtables)
1265 * @subtable_valid: Optional callback to check the validity of
1267 * @probe_table: Callback to the driver being probed when table
1268 * match is successful
1269 * @probe_subtbl: Callback to the driver being probed when table and
1270 * subtable match (and optional callback is successful)
1271 * @driver_data: Sideband data provided back to the driver
1273 struct acpi_probe_entry {
1274 __u8 id[ACPI_TABLE_ID_LEN];
1276 acpi_probe_entry_validate_subtbl subtable_valid;
1278 acpi_tbl_table_handler probe_table;
1279 acpi_tbl_entry_handler probe_subtbl;
1281 kernel_ulong_t driver_data;
1284 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \
1286 static const struct acpi_probe_entry __acpi_probe_##name \
1287 __used __section("__" #table "_acpi_probe_table") = { \
1290 .subtable_valid = valid, \
1291 .probe_table = fn, \
1292 .driver_data = data, \
1295 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \
1296 subtable, valid, data, fn) \
1297 static const struct acpi_probe_entry __acpi_probe_##name \
1298 __used __section("__" #table "_acpi_probe_table") = { \
1301 .subtable_valid = valid, \
1302 .probe_subtbl = fn, \
1303 .driver_data = data, \
1306 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1307 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1309 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1311 #define acpi_probe_device_table(t) \
1313 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1314 ACPI_PROBE_TABLE_END(t); \
1315 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1316 (&ACPI_PROBE_TABLE_END(t) - \
1317 &ACPI_PROBE_TABLE(t))); \
1320 static inline int acpi_dev_get_property(struct acpi_device *adev,
1321 const char *name, acpi_object_type type,
1322 const union acpi_object **obj)
1328 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1329 const char *name, size_t index, size_t num_args,
1330 struct fwnode_reference_args *args)
1336 acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1337 const char *name, size_t index,
1338 struct fwnode_reference_args *args)
1343 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1344 const char *propname,
1350 static inline struct fwnode_handle *
1351 acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1352 struct fwnode_handle *child)
1357 static inline struct fwnode_handle *
1358 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1359 struct fwnode_handle *prev)
1361 return ERR_PTR(-ENXIO);
1365 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1366 struct fwnode_handle **remote,
1367 struct fwnode_handle **port,
1368 struct fwnode_handle **endpoint)
1373 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1374 static const void * __acpi_table_##name[] \
1375 __attribute__((unused)) \
1376 = { (void *) table_id, \
1377 (void *) subtable, \
1382 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1385 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1386 void acpi_table_upgrade(void);
1388 static inline void acpi_table_upgrade(void) { }
1391 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1392 extern bool acpi_has_watchdog(void);
1394 static inline bool acpi_has_watchdog(void) { return false; }
1397 #ifdef CONFIG_ACPI_SPCR_TABLE
1398 extern bool qdf2400_e44_present;
1399 int acpi_parse_spcr(bool enable_earlycon, bool enable_console);
1401 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console)
1407 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1408 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1411 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1417 #ifdef CONFIG_ACPI_LPIT
1418 int lpit_read_residency_count_address(u64 *address);
1420 static inline int lpit_read_residency_count_address(u64 *address)
1426 #ifdef CONFIG_ACPI_PPTT
1427 int acpi_pptt_cpu_is_thread(unsigned int cpu);
1428 int find_acpi_cpu_topology(unsigned int cpu, int level);
1429 int find_acpi_cpu_topology_cluster(unsigned int cpu);
1430 int find_acpi_cpu_topology_package(unsigned int cpu);
1431 int find_acpi_cpu_topology_hetero_id(unsigned int cpu);
1432 int find_acpi_cpu_cache_topology(unsigned int cpu, int level);
1434 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu)
1438 static inline int find_acpi_cpu_topology(unsigned int cpu, int level)
1442 static inline int find_acpi_cpu_topology_cluster(unsigned int cpu)
1446 static inline int find_acpi_cpu_topology_package(unsigned int cpu)
1450 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu)
1454 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level)
1460 #ifdef CONFIG_ACPI_PCC
1461 void acpi_init_pcc(void);
1463 static inline void acpi_init_pcc(void) { }
1467 extern void acpi_device_notify(struct device *dev);
1468 extern void acpi_device_notify_remove(struct device *dev);
1470 static inline void acpi_device_notify(struct device *dev) { }
1471 static inline void acpi_device_notify_remove(struct device *dev) { }
1474 #endif /*_LINUX_ACPI_H*/