arch/csky/include/asm/cache.h

File Facts

System

Linux kernel

Corpus path

arch/csky/include/asm/cache.h

Extension

.h

Size

862 bytes

Lines

33

Domain

Architecture Layer

Bucket

arch/csky

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_CSKY_CACHE_H
#define __ASM_CSKY_CACHE_H

/* bytes per L1 cache line */
#define L1_CACHE_SHIFT	CONFIG_L1_CACHE_SHIFT

#define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)

#define ARCH_DMA_MINALIGN	L1_CACHE_BYTES

#ifndef __ASSEMBLER__

void dcache_wb_line(unsigned long start);

void icache_inv_range(unsigned long start, unsigned long end);
void icache_inv_all(void);
void local_icache_inv_all(void *priv);

void dcache_wb_range(unsigned long start, unsigned long end);
void dcache_wbinv_all(void);

void cache_wbinv_range(unsigned long start, unsigned long end);
void cache_wbinv_all(void);

void dma_wbinv_range(unsigned long start, unsigned long end);
void dma_inv_range(unsigned long start, unsigned long end);
void dma_wb_range(unsigned long start, unsigned long end);

#endif
#endif  /* __ASM_CSKY_CACHE_H */

Annotation

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