D7net
Home
Console
Upload
information
Create File
Create Folder
About
Tools
:
/
lib
/
modules
/
4.4.0-1128-aws
/
build
/
arch
/
nios2
/
include
/
asm
/
Filename :
pgtable-bits.h
back
Copy
/* * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch> * Copyright (C) 2009 Wind River Systems Inc * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */ #ifndef _ASM_NIOS2_PGTABLE_BITS_H #define _ASM_NIOS2_PGTABLE_BITS_H /* * These are actual hardware defined protection bits in the tlbacc register * which looks like this: * * 31 30 ... 26 25 24 23 22 21 20 19 18 ... 1 0 * ignored........ C R W X G PFN............ */ #define _PAGE_GLOBAL (1<<20) #define _PAGE_EXEC (1<<21) #define _PAGE_WRITE (1<<22) #define _PAGE_READ (1<<23) #define _PAGE_CACHED (1<<24) /* C: data access cacheable */ /* * Software defined bits. They are ignored by the hardware and always read back * as zero, but can be written as non-zero. */ #define _PAGE_PRESENT (1<<25) /* PTE contains a translation */ #define _PAGE_ACCESSED (1<<26) /* page referenced */ #define _PAGE_DIRTY (1<<27) /* dirty page */ #endif /* _ASM_NIOS2_PGTABLE_BITS_H */