#ifndef _PPC_PAGE_H
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#ifndef _PPC_PAGE_H
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#define _PPC_PAGE_H
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#define _PPC_PAGE_H
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/* PAGE_SHIFT determines the page size */
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/* PAGE_SHIFT determines the page size */
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#define PAGE_SHIFT 12
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#define PAGE_SHIFT 12
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#define PAGE_SIZE (1UL << PAGE_SHIFT)
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#define PAGE_SIZE (1UL << PAGE_SHIFT)
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#define PAGE_MASK (~(PAGE_SIZE-1))
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#define PAGE_MASK (~(PAGE_SIZE-1))
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void invalidate(void);
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void invalidate(void);
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#ifdef __KERNEL__
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#ifdef __KERNEL__
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#define STRICT_MM_TYPECHECKS
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#define STRICT_MM_TYPECHECKS
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#ifdef STRICT_MM_TYPECHECKS
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#ifdef STRICT_MM_TYPECHECKS
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/*
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/*
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* These are used to make use of C type-checking..
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* These are used to make use of C type-checking..
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*/
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*/
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typedef struct { unsigned long pte; } pte_t;
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typedef struct { unsigned long pte; } pte_t;
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typedef struct { unsigned long pmd; } pmd_t;
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typedef struct { unsigned long pmd; } pmd_t;
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typedef struct { unsigned long pgd; } pgd_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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typedef struct { unsigned long pgprot; } pgprot_t;
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#define pte_val(x) ((x).pte)
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#define pte_val(x) ((x).pte)
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#define pmd_val(x) ((x).pmd)
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#define pmd_val(x) ((x).pmd)
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#define pgd_val(x) ((x).pgd)
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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 pgprot_val(x) ((x).pgprot)
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#define __pte(x) ((pte_t) { (x) } )
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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 __pmd(x) ((pmd_t) { (x) } )
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#define __pgd(x) ((pgd_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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#define __pgprot(x) ((pgprot_t) { (x) } )
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#else
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#else
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/*
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/*
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* .. while these make it easier on the compiler
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* .. while these make it easier on the compiler
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*/
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*/
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typedef unsigned long pte_t;
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typedef unsigned long pte_t;
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typedef unsigned long pmd_t;
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typedef unsigned long pmd_t;
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typedef unsigned long pgd_t;
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typedef unsigned long pgd_t;
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typedef unsigned long pgprot_t;
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typedef unsigned long pgprot_t;
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#define pte_val(x) (x)
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#define pte_val(x) (x)
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#define pmd_val(x) (x)
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#define pmd_val(x) (x)
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#define pgd_val(x) (x)
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#define pgd_val(x) (x)
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#define pgprot_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 __pte(x) (x)
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#define __pmd(x) (x)
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#define __pmd(x) (x)
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#define __pgd(x) (x)
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#define __pgd(x) (x)
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#define __pgprot(x) (x)
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#define __pgprot(x) (x)
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#endif
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#endif
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/* to align the pointer to the (next) page boundary */
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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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#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
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/* This handles the memory map.. */
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/* This handles the memory map.. */
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#define KERNELBASE 0x90000000
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#define KERNELBASE 0x90000000
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#define PAGE_OFFSET KERNELBASE
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#define PAGE_OFFSET KERNELBASE
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#define MAP_NR(addr) ((((unsigned long)addr) - PAGE_OFFSET) >> PAGE_SHIFT)
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#define MAP_NR(addr) ((((unsigned long)addr) - PAGE_OFFSET) >> PAGE_SHIFT)
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#define MAP_PAGE_RESERVED (1<<15)
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#define MAP_PAGE_RESERVED (1<<15)
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#if 0 /* Now defined in "mm.h" */
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#if 0 /* Now defined in "mm.h" */
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/*
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/*
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* This used to be an unsigned short...
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* This used to be an unsigned short...
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*
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*
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* -- Cort
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* -- Cort
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*/
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*/
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/*typedef unsigned short mem_map_t;*/
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/*typedef unsigned short mem_map_t;*/
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typedef struct {
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typedef struct {
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unsigned count:30,
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unsigned count:30,
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dirty:1,
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dirty:1,
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reserved:1;
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reserved:1;
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} mem_map_t;
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} mem_map_t;
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#endif
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#endif
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/* Certain architectures need to do special things when pte's
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/* Certain architectures need to do special things when pte's
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* within a page table are directly modified. Thus, the following
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* within a page table are directly modified. Thus, the following
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* hook is made available.
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* hook is made available.
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*/
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*/
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#define set_pte(pteptr, pteval) ((*(pteptr)) = (pteval))
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#define set_pte(pteptr, pteval) ((*(pteptr)) = (pteval))
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#endif /* __KERNEL__ */
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#endif /* __KERNEL__ */
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#endif /* _PPC_PAGE_H */
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#endif /* _PPC_PAGE_H */
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