arch/sh/drivers/pci/fixups-r7780rp.c

File Facts

System

Linux kernel

Corpus path

arch/sh/drivers/pci/fixups-r7780rp.c

Extension

.c

Size

414 bytes

Lines

19

Domain

Architecture Layer

Bucket

arch/sh

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/io.h
• linux/sh_intc.h
• pci-sh4.h

Detected Declarations

• function Copyright

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * arch/sh/drivers/pci/fixups-r7780rp.c
 *
 * Highlander R7780RP-1 PCI fixups
 *
 * Copyright (C) 2003  Lineo uSolutions, Inc.
 * Copyright (C) 2004 - 2006  Paul Mundt
 */
#include <linux/pci.h>
#include <linux/io.h>
#include <linux/sh_intc.h>
#include "pci-sh4.h"

int pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
{
	return evt2irq(0xa20) + slot;
}

Annotation

• Immediate include surface: `linux/pci.h`, `linux/io.h`, `linux/sh_intc.h`, `pci-sh4.h`.
• Detected declarations: `function Copyright`.
• Atlas domain: Architecture Layer / arch/sh.
• 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.