arch/nios2/include/asm/cache.h

File Facts

System

Linux kernel

Corpus path

arch/nios2/include/asm/cache.h

Extension

.h

Size

679 bytes

Lines

27

Domain

Architecture Layer

Bucket

arch/nios2

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

• No C-style include directives detected by the generator.

Detected Declarations

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

Annotated Snippet

#ifndef _ASM_NIOS2_CACHE_H
#define _ASM_NIOS2_CACHE_H

#define NIOS2_DCACHE_SIZE	CONFIG_NIOS2_DCACHE_SIZE
#define NIOS2_ICACHE_SIZE	CONFIG_NIOS2_ICACHE_SIZE
#define NIOS2_DCACHE_LINE_SIZE	CONFIG_NIOS2_DCACHE_LINE_SIZE
#define NIOS2_ICACHE_LINE_SHIFT	5
#define NIOS2_ICACHE_LINE_SIZE	(1 << NIOS2_ICACHE_LINE_SHIFT)

/* bytes per L1 cache line */
#define L1_CACHE_SHIFT		NIOS2_ICACHE_LINE_SHIFT
#define L1_CACHE_BYTES		NIOS2_ICACHE_LINE_SIZE

#define ARCH_DMA_MINALIGN	L1_CACHE_BYTES

#define __cacheline_aligned
#define ____cacheline_aligned

#endif

Annotation

• Atlas domain: Architecture Layer / arch/nios2.
• 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.