arch/hexagon/include/asm/irq.h

File Facts

System

Linux kernel

Corpus path

arch/hexagon/include/asm/irq.h

Extension

.h

Size

576 bytes

Lines

27

Domain

Architecture Layer

Bucket

arch/hexagon

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

• asm-generic/irq.h

Detected Declarations

• struct pt_regs

Annotated Snippet

#ifndef _ASM_IRQ_H_
#define _ASM_IRQ_H_

/* Number of first-level interrupts associated with the CPU core. */
#define HEXAGON_CPUINTS 32

/*
 * Must define NR_IRQS before including <asm-generic/irq.h>
 * 64 == the two SIRC's, 176 == the two gpio's
 *
 * IRQ configuration is still in flux; defining this to a comfortably
 * large number.
 */
#define NR_IRQS 512

#include <asm-generic/irq.h>

struct pt_regs;
void arch_do_IRQ(struct pt_regs *);

#endif

Annotation

• Immediate include surface: `asm-generic/irq.h`.
• Detected declarations: `struct pt_regs`.
• Atlas domain: Architecture Layer / arch/hexagon.
• 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.