84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
#ifndef _ASM_E2K_HUGETLB_H_
|
|
#define _ASM_E2K_HUGETLB_H_
|
|
|
|
#include <linux/mm.h>
|
|
|
|
#include <asm/e2k.h>
|
|
#include <asm/mman.h>
|
|
#include <asm/tlbflush.h>
|
|
|
|
|
|
extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
|
|
pte_t *ptep, pte_t pte);
|
|
extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
|
|
pte_t *ptep);
|
|
|
|
|
|
static inline void arch_clear_hugepage_flags(struct page *page)
|
|
{
|
|
}
|
|
|
|
static inline int is_hugepage_only_range(struct mm_struct *mm,
|
|
unsigned long addr,
|
|
unsigned long len)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
|
|
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
|
|
unsigned long addr, pte_t *ptep)
|
|
{
|
|
}
|
|
|
|
#define __HAVE_ARCH_HUGE_PTE_NONE
|
|
static inline int huge_pte_none(pte_t pte)
|
|
{
|
|
#ifndef CONFIG_MAKE_ALL_PAGES_VALID
|
|
return _PAGE_CLEAR(pte_val(pte), UNI_PAGE_HUGE) == 0;
|
|
#else /* CONFIG_MAKE_ALL_PAGES_VALID */
|
|
return _PAGE_CLEAR(pte_val(pte), UNI_PAGE_VALID | UNI_PAGE_HUGE) == 0;
|
|
#endif /* !CONFIG_MAKE_ALL_PAGES_VALID */
|
|
}
|
|
|
|
#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
|
|
static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
|
|
unsigned long addr, pte_t *ptep)
|
|
{
|
|
ptep_set_wrprotect(mm, addr, ptep);
|
|
}
|
|
|
|
#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
|
|
static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
|
|
unsigned long addr, pte_t *ptep,
|
|
pte_t pte, int dirty)
|
|
{
|
|
int changed = !pte_same(*ptep, pte);
|
|
if (changed) {
|
|
set_pte_at(vma->vm_mm, addr, ptep, pte);
|
|
flush_tlb_range(vma, addr, addr + PMD_SIZE);
|
|
}
|
|
return changed;
|
|
}
|
|
|
|
#define __HAVE_ARCH_HUGE_PTE_CLEAR
|
|
static inline void huge_pte_clear(struct mm_struct *mm, unsigned long address,
|
|
pte_t *page_table, unsigned long sz)
|
|
{
|
|
/*
|
|
* In this case virtual page occupied two sequential entries in
|
|
* page table on 2-th level (PMD).
|
|
* All two pte's (pmd's) should be cleared.
|
|
*/
|
|
pte_clear(mm, address, page_table);
|
|
}
|
|
|
|
#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
|
|
#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
|
|
#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
|
|
#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
|
|
|
|
#include <asm-generic/hugetlb.h>
|
|
|
|
#endif /* _ASM_E2K_HUGETLB_H_ */
|