arch/mips/include/asm/mach-ip27/spaces.h

Source file repositories/reference/linux-study-clean/arch/mips/include/asm/mach-ip27/spaces.h

File Facts

System
Linux kernel
Corpus path
arch/mips/include/asm/mach-ip27/spaces.h
Extension
.h
Size
1083 bytes
Lines
36
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.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _ASM_MACH_IP27_SPACES_H
#define _ASM_MACH_IP27_SPACES_H

#include <linux/const.h>

/*
 * IP27 uses the R10000's uncached attribute feature.  Attribute 3 selects
 * uncached memory addressing. Hide the definitions on 32-bit compilation
 * of the compat-vdso code.
 */
#ifdef CONFIG_64BIT
#define HSPEC_BASE		_AC(0x9000000000000000, UL)
#define IO_BASE			_AC(0x9200000000000000, UL)
#define MSPEC_BASE		_AC(0x9400000000000000, UL)
#define UNCAC_BASE		_AC(0x9600000000000000, UL)
#define CAC_BASE		_AC(0xa800000000000000, UL)
#endif

#define TO_MSPEC(x)		(MSPEC_BASE | ((x) & TO_PHYS_MASK))
#define TO_HSPEC(x)		(HSPEC_BASE | ((x) & TO_PHYS_MASK))

#define HIGHMEM_START		(~0UL)

#include <asm/mach-generic/spaces.h>

#endif /* _ASM_MACH_IP27_SPACES_H */

Annotation

Implementation Notes