arch/arm/include/asm/device.h

File Facts

System

Linux kernel

Corpus path

arch/arm/include/asm/device.h

Extension

.h

Size

533 bytes

Lines

30

Domain

Architecture Layer

Bucket

arch/arm

Inferred role

Architecture Layer: implementation source

Status

source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• struct dev_archdata
• struct omap_device
• struct pdev_archdata

Annotated Snippet

struct dev_archdata {
#ifdef CONFIG_ARM_DMA_USE_IOMMU
	struct dma_iommu_mapping	*mapping;
#endif
	unsigned int dma_ops_setup:1;
};

struct omap_device;

struct pdev_archdata {
#ifdef CONFIG_ARCH_OMAP
	struct omap_device *od;
#endif
};

#ifdef CONFIG_ARM_DMA_USE_IOMMU
#define to_dma_iommu_mapping(dev) ((dev)->archdata.mapping)
#else
#define to_dma_iommu_mapping(dev) NULL
#endif

#endif

Annotation

• Detected declarations: `struct dev_archdata`, `struct omap_device`, `struct pdev_archdata`.
• Atlas domain: Architecture Layer / arch/arm.
• Implementation status: source 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.