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platform_kernel-5.15
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x86: unify pte_index 

Impact: cleanup

Unify and demacro pte_index.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Jeremy Fitzhardinge 2009-02-05 11:31:06 -08:00
parent 97e2817d34
commit 346309cff6
3 changed files with 11 additions and 9 deletions
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11
arch/x86/include/asm/pgtable.h
View File

@ -498,6 +498,17 @@ static inline unsigned pmd_index(unsigned long address)
*/ */
#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot)) #define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot))
/*
* the pte page can be thought of an array like this: pte_t[PTRS_PER_PTE]
*
* this function returns the index of the entry in the pte page which would
* control the given virtual address
*/
static inline unsigned pte_index(unsigned long address)
{
return (address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1);
}
#if PAGETABLE_LEVELS > 2 #if PAGETABLE_LEVELS > 2
static inline int pud_present(pud_t pud) static inline int pud_present(pud_t pud)
{ {

8
arch/x86/include/asm/pgtable_32.h
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@ -97,14 +97,6 @@ extern unsigned long pg0[];
static inline int pud_large(pud_t pud) { return 0; } static inline int pud_large(pud_t pud) { return 0; }
/*
* the pte page can be thought of an array like this: pte_t[PTRS_PER_PTE]
*
* this macro returns the index of the entry in the pte page which would
* control the given virtual address
*/
#define pte_index(address) \
(((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
#define pte_offset_kernel(dir, address) \ #define pte_offset_kernel(dir, address) \
((pte_t *)pmd_page_vaddr(*(dir)) + pte_index((address))) ((pte_t *)pmd_page_vaddr(*(dir)) + pte_index((address)))

1
arch/x86/include/asm/pgtable_64.h
View File

@ -198,7 +198,6 @@ static inline int pud_large(pud_t pte)
/* PTE - Level 1 access. */ /* PTE - Level 1 access. */
#define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
#define pte_offset_kernel(dir, address) ((pte_t *) pmd_page_vaddr(*(dir)) + \ #define pte_offset_kernel(dir, address) ((pte_t *) pmd_page_vaddr(*(dir)) + \
pte_index((address))) pte_index((address)))