arch/powerpc/platforms/8xx/pic.h

File Facts

System

Linux kernel

Corpus path

arch/powerpc/platforms/8xx/pic.h

Extension

.h

Size

402 bytes

Lines

20

Domain

Architecture Layer

Bucket

arch/powerpc

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/irq.h
• linux/interrupt.h

Detected Declarations

• function mk_int_int_mask

Annotated Snippet

#ifndef _PPC_KERNEL_MPC8xx_H
#define _PPC_KERNEL_MPC8xx_H

#include <linux/irq.h>
#include <linux/interrupt.h>

void mpc8xx_pic_init(void);
unsigned int mpc8xx_get_irq(void);

/*
 * Some internal interrupt registers use an 8-bit mask for the interrupt
 * level instead of a number.
 */
static inline uint mk_int_int_mask(uint mask)
{
	return (1 << (7 - (mask/2)));
}

#endif /* _PPC_KERNEL_PPC8xx_H */

Annotation

• Immediate include surface: `linux/irq.h`, `linux/interrupt.h`.
• Detected declarations: `function mk_int_int_mask`.
• Atlas domain: Architecture Layer / arch/powerpc.
• 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.