arch/arm/include/asm/hardware/cache-l2x0.h

File Facts

System

Linux kernel

Corpus path

arch/arm/include/asm/hardware/cache-l2x0.h

Extension

.h

Size

6377 bytes

Lines

193

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

• linux/errno.h
• linux/init.h
• linux/types.h

Detected Declarations

• struct l2x0_regs
• function l2x0_of_init
• function l2x0_pmu_register

Annotated Snippet

struct l2x0_regs {
	unsigned long phy_base;
	unsigned long aux_ctrl;
	/*
	 * Whether the following registers need to be saved/restored
	 * depends on platform
	 */
	unsigned long tag_latency;
	unsigned long data_latency;
	unsigned long filter_start;
	unsigned long filter_end;
	unsigned long prefetch_ctrl;
	unsigned long pwr_ctrl;
	unsigned long ctrl;
	unsigned long aux2_ctrl;
};

extern struct l2x0_regs l2x0_saved_regs;

#endif /* __ASSEMBLY__ */

#endif

Annotation

• Immediate include surface: `linux/errno.h`, `linux/init.h`, `linux/types.h`.
• Detected declarations: `struct l2x0_regs`, `function l2x0_of_init`, `function l2x0_pmu_register`.
• 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.