drivers/rpmsg/qcom_glink_rpm.c

File Facts

System

Linux kernel

Corpus path

drivers/rpmsg/qcom_glink_rpm.c

Extension

.c

Size

9350 bytes

Lines

406

Domain

Driver Families

Bucket

drivers/rpmsg

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/idr.h
• linux/interrupt.h
• linux/io.h
• linux/list.h
• linux/mfd/syscon.h
• linux/module.h
• linux/of.h
• linux/of_address.h
• linux/of_irq.h
• linux/platform_device.h
• linux/regmap.h
• linux/rpmsg.h
• linux/slab.h
• linux/workqueue.h
• linux/mailbox_client.h
• rpmsg_internal.h
• qcom_glink_native.h

Detected Declarations

• struct rpm_toc_entry
• struct rpm_toc
• struct glink_rpm_pipe
• struct glink_rpm
• function glink_rpm_rx_avail
• function glink_rpm_rx_peek
• function glink_rpm_rx_advance
• function glink_rpm_tx_avail
• function glink_rpm_tx_write_one
• function glink_rpm_tx_write
• function glink_rpm_tx_kick
• function qcom_glink_rpm_intr
• function glink_rpm_parse_toc
• function glink_rpm_probe
• function glink_rpm_remove
• function glink_rpm_init
• function glink_rpm_exit
• module init glink_rpm_init

Annotated Snippet

subsys_initcall(glink_rpm_init);

static void __exit glink_rpm_exit(void)
{
	platform_driver_unregister(&glink_rpm_driver);
}
module_exit(glink_rpm_exit);

MODULE_AUTHOR("Bjorn Andersson <bjorn.andersson@linaro.org>");
MODULE_DESCRIPTION("Qualcomm GLINK RPM driver");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/idr.h`, `linux/interrupt.h`, `linux/io.h`, `linux/list.h`, `linux/mfd/syscon.h`, `linux/module.h`, `linux/of.h`, `linux/of_address.h`.
• Detected declarations: `struct rpm_toc_entry`, `struct rpm_toc`, `struct glink_rpm_pipe`, `struct glink_rpm`, `function glink_rpm_rx_avail`, `function glink_rpm_rx_peek`, `function glink_rpm_rx_advance`, `function glink_rpm_tx_avail`, `function glink_rpm_tx_write_one`, `function glink_rpm_tx_write`.
• Atlas domain: Driver Families / drivers/rpmsg.
• Implementation status: integration implementation candidate.
• 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.