arch/arm/mach-omap2/omap-hotplug.c

File Facts

System

Linux kernel

Corpus path

arch/arm/mach-omap2/omap-hotplug.c

Extension

.c

Size

1459 bytes

Lines

70

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.

Dependency Surface

• linux/kernel.h
• linux/errno.h
• linux/smp.h
• linux/io.h
• omap-wakeupgen.h
• common.h
• powerdomain.h

Detected Declarations

• function Copyright
• function omap4_cpu_kill

Annotated Snippet

if (boot_cpu == smp_processor_id()) {
			/*
			 * OK, proper wakeup, we're done
			 */
			break;
		}
		pr_debug("CPU%u: spurious wakeup call\n", cpu);
	}
}

/* Needed by kexec and platform_can_cpu_hotplug() */
int omap4_cpu_kill(unsigned int cpu)
{
	return 1;
}

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/errno.h`, `linux/smp.h`, `linux/io.h`, `omap-wakeupgen.h`, `common.h`, `powerdomain.h`.
• Detected declarations: `function Copyright`, `function omap4_cpu_kill`.
• 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.