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x86, pgtable.h: macro-ify *_page() methods

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The p?d_page() methods still rely on highlevel types and methods:

In file included from arch/x86/kernel/early_printk.c:18:
/home/mingo/tip/arch/x86/include/asm/pgtable.h: In function ‘pmd_page’:
/home/mingo/tip/arch/x86/include/asm/pgtable.h:516: error: implicit declaration of function ‘__pfn_to_section’
/home/mingo/tip/arch/x86/include/asm/pgtable.h:516: error: initialization makes pointer from integer without a cast
/home/mingo/tip/arch/x86/include/asm/pgtable.h:516: error: implicit declaration of function ‘__section_mem_map_addr’
/home/mingo/tip/arch/x86/include/asm/pgtable.h:516: error: return makes pointer from integer without a cast

So convert them to macros and document the type dependency.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2009-02-09 11:42:57 +01:00
parent 726c0d95b6
commit e5f7f202f3
1 changed files with 15 additions and 12 deletions
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27
arch/x86/include/asm/pgtable.h
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@ -473,10 +473,11 @@ static inline unsigned long pmd_page_vaddr(pmd_t pmd)
return (unsigned long)__va(pmd_val(pmd) & PTE_PFN_MASK);
}
static inline struct page *pmd_page(pmd_t pmd)
{
return pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT);
}
/*
* Currently stuck as a macro due to indirect forward reference to
* linux/mmzone.h's __section_mem_map_addr() definition:
*/
#define pmd_page(pmd) pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT)
/*
* the pmd page can be thought of an array like this: pmd_t[PTRS_PER_PMD]
@ -543,10 +544,11 @@ static inline unsigned long pud_page_vaddr(pud_t pud)
return (unsigned long)__va((unsigned long)pud_val(pud) & PTE_PFN_MASK);
}
static inline struct page *pud_page(pud_t pud)
{
return pfn_to_page(pud_val(pud) >> PAGE_SHIFT);
}
/*
* Currently stuck as a macro due to indirect forward reference to
* linux/mmzone.h's __section_mem_map_addr() definition:
*/
#define pud_page(pud) pfn_to_page(pud_val(pud) >> PAGE_SHIFT)
/* Find an entry in the second-level page table.. */
static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
@ -582,10 +584,11 @@ static inline unsigned long pgd_page_vaddr(pgd_t pgd)
return (unsigned long)__va((unsigned long)pgd_val(pgd) & PTE_PFN_MASK);
}
static inline struct page *pgd_page(pgd_t pgd)
{
return pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT);
}
/*
* Currently stuck as a macro due to indirect forward reference to
* linux/mmzone.h's __section_mem_map_addr() definition:
*/
#define pgd_page(pgd) pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT)
/* to find an entry in a page-table-directory. */
static inline unsigned pud_index(unsigned long address)