drivers/acpi/acpica/acevents.h
Source file repositories/reference/linux-study-clean/drivers/acpi/acpica/acevents.h
File Facts
- System
- Linux kernel
- Corpus path
drivers/acpi/acpica/acevents.h- Extension
.h- Size
- 7141 bytes
- Lines
- 253
- Domain
- Driver Families
- Bucket
- drivers/acpi
- Inferred role
- Driver Families: implementation source
- Status
- source implementation candidate
Why This File Exists
Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
#ifndef __ACEVENTS_H__
#define __ACEVENTS_H__
/*
* Conditions to trigger post enabling GPE polling:
* It is not sufficient to trigger edge-triggered GPE with specific GPE
* chips, software need to poll once after enabling.
*/
#ifdef ACPI_USE_GPE_POLLING
#define ACPI_GPE_IS_POLLING_NEEDED(__gpe__) \
((__gpe__)->runtime_count == 1 && \
(__gpe__)->flags & ACPI_GPE_INITIALIZED && \
((__gpe__)->flags & ACPI_GPE_XRUPT_TYPE_MASK) == ACPI_GPE_EDGE_TRIGGERED)
#else
#define ACPI_GPE_IS_POLLING_NEEDED(__gpe__) FALSE
#endif
/*
* evevent
*/
acpi_status acpi_ev_initialize_events(void);
acpi_status acpi_ev_install_xrupt_handlers(void);
u32 acpi_ev_fixed_event_detect(void);
/*
* evmisc
*/
u8 acpi_ev_is_notify_object(struct acpi_namespace_node *node);
u32 acpi_ev_get_gpe_number_index(u32 gpe_number);
acpi_status
acpi_ev_queue_notify_request(struct acpi_namespace_node *node,
u32 notify_value);
/*
* evglock - Global Lock support
*/
acpi_status acpi_ev_init_global_lock_handler(void);
ACPI_HW_DEPENDENT_RETURN_OK(acpi_status
acpi_ev_acquire_global_lock(u16 timeout))
ACPI_HW_DEPENDENT_RETURN_OK(acpi_status acpi_ev_release_global_lock(void))
acpi_status acpi_ev_remove_global_lock_handler(void);
/*
* evgpe - Low-level GPE support
*/
u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list);
acpi_status
acpi_ev_update_gpe_enable_mask(struct acpi_gpe_event_info *gpe_event_info);
acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info);
acpi_status
acpi_ev_mask_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 is_masked);
acpi_status
acpi_ev_add_gpe_reference(struct acpi_gpe_event_info *gpe_event_info,
u8 clear_on_enable);
acpi_status
acpi_ev_remove_gpe_reference(struct acpi_gpe_event_info *gpe_event_info);
struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device,
u32 gpe_number);
struct acpi_gpe_event_info *acpi_ev_low_get_gpe_info(u32 gpe_number,
struct acpi_gpe_block_info
*gpe_block);
acpi_status acpi_ev_finish_gpe(struct acpi_gpe_event_info *gpe_event_info);
u32
acpi_ev_detect_gpe(struct acpi_namespace_node *gpe_device,
struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number);
/*
* evgpeblk - Upper-level GPE block support
*/
acpi_status
acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
u64 address,
u8 space_id,
u32 register_count,
u16 gpe_block_base_number,
Annotation
- Atlas domain: Driver Families / drivers/acpi.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.