drivers/platform/x86/intel/speed_select_if/isst_if_mmio.c

File Facts

System

Linux kernel

Corpus path

drivers/platform/x86/intel/speed_select_if/isst_if_mmio.c

Extension

.c

Size

5069 bytes

Lines

206

Domain

Driver Families

Bucket

drivers/platform

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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 an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• 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/module.h
• linux/pci.h
• linux/sched/signal.h
• linux/uaccess.h
• uapi/linux/isst_if.h
• isst_if_common.h

Detected Declarations

• struct isst_mmio_range
• struct isst_if_device
• function isst_if_mmio_rd_wr
• function isst_if_probe
• function isst_if_remove
• function isst_if_suspend
• function isst_if_resume

Annotated Snippet

static struct pci_driver isst_if_pci_driver = {
	.name			= "isst_if_pci",
	.id_table		= isst_if_ids,
	.probe			= isst_if_probe,
	.remove			= isst_if_remove,
	.driver.pm		= &isst_if_pm_ops,
};

module_pci_driver(isst_if_pci_driver);

MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Intel speed select interface mmio driver");

Annotation

• Immediate include surface: `linux/module.h`, `linux/pci.h`, `linux/sched/signal.h`, `linux/uaccess.h`, `uapi/linux/isst_if.h`, `isst_if_common.h`.
• Detected declarations: `struct isst_mmio_range`, `struct isst_if_device`, `function isst_if_mmio_rd_wr`, `function isst_if_probe`, `function isst_if_remove`, `function isst_if_suspend`, `function isst_if_resume`.
• Atlas domain: Driver Families / drivers/platform.
• Implementation status: pattern 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.