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x86: unify pages_to_mb

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Impact: cleanup

Unify and demacro pages_to_mb.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Jeremy Fitzhardinge 2009-02-05 11:31:12 -08:00
parent 99510238bb
commit cc290ca38c
3 changed files with 5 additions and 4 deletions
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5
arch/x86/include/asm/pgtable.h
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@ -519,6 +519,11 @@ static inline int pmd_bad(pmd_t pmd)
return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE;
}
static inline unsigned long pages_to_mb(unsigned long npg)
{
return npg >> (20 - PAGE_SHIFT);
}
#if PAGETABLE_LEVELS > 2
static inline int pud_present(pud_t pud)
{

2
arch/x86/include/asm/pgtable_32.h
View file

@ -85,8 +85,6 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
/* The boot page tables (all created as a single array) */
extern unsigned long pg0[];
#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))
#ifdef CONFIG_X86_PAE
# include <asm/pgtable-3level.h>
#else

2
arch/x86/include/asm/pgtable_64.h
View file

@ -154,8 +154,6 @@ static inline void native_pgd_clear(pgd_t *pgd)
#ifndef __ASSEMBLY__
#define pages_to_mb(x) ((x) >> (20 - PAGE_SHIFT)) /* FIXME: is this right? */
/*
* Conversion functions: convert a page and protection to a page entry,
* and a page entry and page directory to the page they refer to.