drivers/mailbox/pl320-ipc.c
Source file repositories/reference/linux-study-clean/drivers/mailbox/pl320-ipc.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/mailbox/pl320-ipc.c- Extension
.c- Size
- 4340 bytes
- Lines
- 176
- Domain
- Driver Families
- Bucket
- drivers/mailbox
- 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.
- Touches IRQ or DMA behavior; this matters for the representative real-device path.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/types.hlinux/err.hlinux/delay.hlinux/export.hlinux/io.hlinux/interrupt.hlinux/completion.hlinux/mutex.hlinux/notifier.hlinux/spinlock.hlinux/device.hlinux/amba/bus.hlinux/pl320-ipc.h
Detected Declarations
function __ipc_sendfunction __ipc_rcvfunction pl320_ipc_transmitfunction ipc_handlerfunction pl320_ipc_register_notifierfunction pl320_ipc_unregister_notifierfunction pl320_probefunction ipc_initmodule init ipc_initexport pl320_ipc_transmitexport pl320_ipc_register_notifierexport pl320_ipc_unregister_notifier
Annotated Snippet
subsys_initcall(ipc_init);Annotation
- Immediate include surface: `linux/types.h`, `linux/err.h`, `linux/delay.h`, `linux/export.h`, `linux/io.h`, `linux/interrupt.h`, `linux/completion.h`, `linux/mutex.h`.
- Detected declarations: `function __ipc_send`, `function __ipc_rcv`, `function pl320_ipc_transmit`, `function ipc_handler`, `function pl320_ipc_register_notifier`, `function pl320_ipc_unregister_notifier`, `function pl320_probe`, `function ipc_init`, `module init ipc_init`, `export pl320_ipc_transmit`.
- Atlas domain: Driver Families / drivers/mailbox.
- Implementation status: integration implementation candidate.
- Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
- IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.
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.