drivers/ptp/ptp_kvm_common.c
Source file repositories/reference/linux-study-clean/drivers/ptp/ptp_kvm_common.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/ptp/ptp_kvm_common.c- Extension
.c- Size
- 3229 bytes
- Lines
- 160
- Domain
- Driver Families
- Bucket
- drivers/ptp
- 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.
- Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/device.hlinux/err.hlinux/init.hlinux/kernel.hlinux/slab.hlinux/module.hlinux/ptp_kvm.huapi/linux/kvm_para.hasm/kvm_para.huapi/asm/kvm_para.hlinux/ptp_clock_kernel.h
Detected Declarations
struct kvm_ptp_clockfunction ptp_kvm_get_time_fnfunction ptp_kvm_getcrosststampfunction ptp_kvm_adjfinefunction ptp_kvm_adjtimefunction ptp_kvm_settimefunction ptp_kvm_gettimefunction ptp_kvm_enablefunction ptp_kvm_exitfunction ptp_kvm_initmodule init ptp_kvm_init
Annotated Snippet
module_init(ptp_kvm_init);
module_exit(ptp_kvm_exit);
MODULE_AUTHOR("Marcelo Tosatti <mtosatti@redhat.com>");
MODULE_DESCRIPTION("PTP clock using KVMCLOCK");
MODULE_LICENSE("GPL");Annotation
- Immediate include surface: `linux/device.h`, `linux/err.h`, `linux/init.h`, `linux/kernel.h`, `linux/slab.h`, `linux/module.h`, `linux/ptp_kvm.h`, `uapi/linux/kvm_para.h`.
- Detected declarations: `struct kvm_ptp_clock`, `function ptp_kvm_get_time_fn`, `function ptp_kvm_getcrosststamp`, `function ptp_kvm_adjfine`, `function ptp_kvm_adjtime`, `function ptp_kvm_settime`, `function ptp_kvm_gettime`, `function ptp_kvm_enable`, `function ptp_kvm_exit`, `function ptp_kvm_init`.
- Atlas domain: Driver Families / drivers/ptp.
- Implementation status: integration implementation candidate.
- Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
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.