arch/sh/include/cpu-sh2/cpu/cache.h

Source file repositories/reference/linux-study-clean/arch/sh/include/cpu-sh2/cpu/cache.h

File Facts

System
Linux kernel
Corpus path
arch/sh/include/cpu-sh2/cpu/cache.h
Extension
.h
Size
1167 bytes
Lines
41
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.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __ASM_CPU_SH2_CACHE_H
#define __ASM_CPU_SH2_CACHE_H

#define L1_CACHE_SHIFT	4

#define SH_CACHE_VALID		1
#define SH_CACHE_UPDATED	2
#define SH_CACHE_COMBINED	4
#define SH_CACHE_ASSOC		8

#if defined(CONFIG_CPU_SUBTYPE_SH7619)
#define SH_CCR		0xffffffec

#define CCR_CACHE_CE	0x01	/* Cache enable */
#define CCR_CACHE_WT	0x02    /* CCR[bit1=1,bit2=1] */
				/* 0x00000000-0x7fffffff: Write-through  */
				/* 0x80000000-0x9fffffff: Write-back     */
                                /* 0xc0000000-0xdfffffff: Write-through  */
#define CCR_CACHE_CB	0x04    /* CCR[bit1=0,bit2=0] */
				/* 0x00000000-0x7fffffff: Write-back     */
				/* 0x80000000-0x9fffffff: Write-through  */
                                /* 0xc0000000-0xdfffffff: Write-back     */
#define CCR_CACHE_CF	0x08	/* Cache invalidate */

#define CACHE_OC_ADDRESS_ARRAY	0xf0000000
#define CACHE_OC_DATA_ARRAY	0xf1000000

#define CCR_CACHE_ENABLE	CCR_CACHE_CE
#define CCR_CACHE_INVALIDATE	CCR_CACHE_CF
#define CACHE_PHYSADDR_MASK	0x1ffffc00

#endif

#endif /* __ASM_CPU_SH2_CACHE_H */

Annotation

Implementation Notes