drivers/acpi/arm64/gtdt.c
Source file repositories/reference/linux-study-clean/drivers/acpi/arm64/gtdt.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/acpi/arm64/gtdt.c- Extension
.c- Size
- 12640 bytes
- Lines
- 459
- Domain
- Driver Families
- Bucket
- drivers/acpi
- Inferred role
- Driver Families: exported/initcall integration point
- Status
- integration 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.
- Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/acpi.hlinux/init.hlinux/irqdomain.hlinux/kernel.hlinux/platform_device.hclocksource/arm_arch_timer.h
Detected Declarations
struct acpi_gtdt_descriptorstruct gtdt_v3function platform_timer_validfunction is_timer_blockfunction is_non_secure_watchdogfunction map_gt_gsifunction acpi_gtdt_map_ppifunction acpi_gtdt_c3stopfunction acpi_gtdt_initfunction gtdt_parse_timer_blockfunction gtdt_import_sbsa_gwdtfunction gtdt_platform_timer_initfunction for_each_platform_timermodule init gtdt_platform_timer_init
Annotated Snippet
device_initcall(gtdt_platform_timer_init);Annotation
- Immediate include surface: `linux/acpi.h`, `linux/init.h`, `linux/irqdomain.h`, `linux/kernel.h`, `linux/platform_device.h`, `clocksource/arm_arch_timer.h`.
- Detected declarations: `struct acpi_gtdt_descriptor`, `struct gtdt_v3`, `function platform_timer_valid`, `function is_timer_block`, `function is_non_secure_watchdog`, `function map_gt_gsi`, `function acpi_gtdt_map_ppi`, `function acpi_gtdt_c3stop`, `function acpi_gtdt_init`, `function gtdt_parse_timer_block`.
- Atlas domain: Driver Families / drivers/acpi.
- Implementation status: integration 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.