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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [include/] [asm-i960/] [page.h] - Blame information for rev 1765

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1 1633 jcastillo
#ifndef _I960_PAGE_H
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#define _I960_PAGE_H
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#include <linux/config.h>
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/* PAGE_SHIFT determines the page size */
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#define PAGE_SHIFT      12
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#define PAGE_SIZE       (1UL << PAGE_SHIFT)
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#define PAGE_MASK       (~(PAGE_SIZE-1))
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#ifdef __KERNEL__
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#define STRICT_MM_TYPECHECKS
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#ifdef STRICT_MM_TYPECHECKS
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/*
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 * These are used to make use of C type-checking..
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 */
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typedef struct { unsigned long pte; } pte_t;
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typedef struct { unsigned long pmd[16]; } pmd_t;
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typedef struct { unsigned long pgd; } pgd_t;
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typedef struct { unsigned long pgprot; } pgprot_t;
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#define pte_val(x)      ((x).pte)
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#define pmd_val(x)      ((&x)->pmd[0])
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#define pgd_val(x)      ((x).pgd)
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#define pgprot_val(x)   ((x).pgprot)
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#define __pte(x)        ((pte_t) { (x) } )
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#define __pmd(x)        ((pmd_t) { (x) } )
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#define __pgd(x)        ((pgd_t) { (x) } )
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#define __pgprot(x)     ((pgprot_t) { (x) } )
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#else
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/*
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 * .. while these make it easier on the compiler
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 */
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typedef unsigned long pte_t;
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typedef struct { unsigned long pmd[16]; } pmd_t;
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typedef unsigned long pgd_t;
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typedef unsigned long pgprot_t;
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#define pte_val(x)      (x)
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#define pmd_val(x)      ((&x)->pmd[0])
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#define pgd_val(x)      (x)
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#define pgprot_val(x)   (x)
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#define __pte(x)        (x)
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#define __pmd(x)        ((pmd_t) { (x) } )
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#define __pgd(x)        (x)
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#define __pgprot(x)     (x)
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#endif
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/* to align the pointer to the (next) page boundary */
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#define PAGE_ALIGN(addr)        (((addr)+PAGE_SIZE-1)&PAGE_MASK)
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/* This handles the memory map.. */
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/* FIXME this should be a I960-specific value set in an arch.h file */
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#define PAGE_OFFSET             0xA3C00000
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#define MAP_NR(addr)            ((((unsigned long)(addr)) - PAGE_OFFSET) >> PAGE_SHIFT)
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#endif /* __KERNEL__ */
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#endif /* _I960_PAGE_H */

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