arch/sh/include/cpu-sh3/cpu/dma.h

File Facts

System

Linux kernel

Corpus path

arch/sh/include/cpu-sh3/cpu/dma.h

Extension

.h

Size

497 bytes

Lines

20

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.

Dependency Surface

• linux/sh_intc.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __ASM_CPU_SH3_DMA_H
#define __ASM_CPU_SH3_DMA_H

#include <linux/sh_intc.h>

#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
    defined(CONFIG_CPU_SUBTYPE_SH7721) || \
    defined(CONFIG_CPU_SUBTYPE_SH7710) || \
    defined(CONFIG_CPU_SUBTYPE_SH7712)
#define SH_DMAC_BASE0	0xa4010020
#else /* SH7705/06/07/09 */
#define SH_DMAC_BASE0	0xa4000020
#endif

#define DMTE0_IRQ	evt2irq(0x800)
#define DMTE4_IRQ	evt2irq(0xb80)

#endif /* __ASM_CPU_SH3_DMA_H */

Annotation

• Immediate include surface: `linux/sh_intc.h`.
• 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.