arch/x86/include/asm/hpet.h

File Facts

System

Linux kernel

Corpus path

arch/x86/include/asm/hpet.h

Extension

.h

Size

2963 bytes

Lines

103

Domain

Architecture Layer

Bucket

arch/x86

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.

Dependency Surface

• linux/msi.h
• linux/interrupt.h

Detected Declarations

• function hpet_enable
• function is_hpet_enabled

Annotated Snippet

static inline int hpet_enable(void) { return 0; }
static inline int is_hpet_enabled(void) { return 0; }
#define hpet_readl(a) 0
#define default_setup_hpet_msi	NULL

#endif
#endif /* _ASM_X86_HPET_H */

Annotation

• Immediate include surface: `linux/msi.h`, `linux/interrupt.h`.
• Detected declarations: `function hpet_enable`, `function is_hpet_enabled`.
• Atlas domain: Architecture Layer / arch/x86.
• Implementation status: source 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.