arch/mips/sibyte/common/dma.c

File Facts

System

Linux kernel

Corpus path

arch/mips/sibyte/common/dma.c

Extension

.c

Size

268 bytes

Lines

15

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.

Dependency Surface

• linux/swiotlb.h
• asm/bootinfo.h

Detected Declarations

• function Copyright

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0+
/*
 *	DMA support for Broadcom SiByte platforms.
 *
 *	Copyright (c) 2018  Maciej W. Rozycki
 */

#include <linux/swiotlb.h>
#include <asm/bootinfo.h>

void __init plat_swiotlb_setup(void)
{
	swiotlb_init(true, SWIOTLB_VERBOSE);
}

Annotation

• Immediate include surface: `linux/swiotlb.h`, `asm/bootinfo.h`.
• Detected declarations: `function Copyright`.
• 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.