arch/mips/pci/fixup-ath79.c

File Facts

System

Linux kernel

Corpus path

arch/mips/pci/fixup-ath79.c

Extension

.c

Size

363 bytes

Lines

19

Domain

Architecture Layer

Bucket

arch/mips

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/pci.h
• linux/of_pci.h

Detected Declarations

• function Copyright
• function pcibios_map_irq

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 *  Copyright (C) 2018 John Crispin <john@phrozen.org>
 */

#include <linux/pci.h>
//#include <linux/of_irq.h>
#include <linux/of_pci.h>

int pcibios_plat_dev_init(struct pci_dev *dev)
{
	return 0;
}

int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
	return of_irq_parse_and_map_pci(dev, slot, pin);
}

Annotation

• Immediate include surface: `linux/pci.h`, `linux/of_pci.h`.
• Detected declarations: `function Copyright`, `function pcibios_map_irq`.
• Atlas domain: Architecture Layer / arch/mips.
• 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.