2024-09-09 08:52:07 +00:00
|
|
|
#ifndef _ASM_SPARC64_HUGETLB_H
|
|
|
|
|
#define _ASM_SPARC64_HUGETLB_H
|
|
|
|
|
|
|
|
|
|
#include <asm/page.h>
|
2024-09-09 08:57:42 +00:00
|
|
|
#include <asm-generic/hugetlb.h>
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
|
|
|
|
|
pte_t *ptep, pte_t pte);
|
|
|
|
|
|
|
|
|
|
pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
|
|
|
|
|
pte_t *ptep);
|
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm)
|
|
|
|
|
{
|
|
|
|
|
}
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
|
static inline int is_hugepage_only_range(struct mm_struct *mm,
|
|
|
|
|
unsigned long addr,
|
|
|
|
|
unsigned long len) {
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* If the arch doesn't supply something else, assume that hugepage
|
|
|
|
|
* size aligned regions are ok without further preparation.
|
|
|
|
|
*/
|
|
|
|
|
static inline int prepare_hugepage_range(struct file *file,
|
|
|
|
|
unsigned long addr, unsigned long len)
|
|
|
|
|
{
|
|
|
|
|
if (len & ~HPAGE_MASK)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
if (addr & ~HPAGE_MASK)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
|
|
|
|
|
unsigned long addr, unsigned long end,
|
|
|
|
|
unsigned long floor,
|
|
|
|
|
unsigned long ceiling)
|
|
|
|
|
{
|
|
|
|
|
free_pgd_range(tlb, addr, end, floor, ceiling);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
|
|
|
|
|
unsigned long addr, pte_t *ptep)
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline int huge_pte_none(pte_t pte)
|
|
|
|
|
{
|
|
|
|
|
return pte_none(pte);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline pte_t huge_pte_wrprotect(pte_t pte)
|
|
|
|
|
{
|
|
|
|
|
return pte_wrprotect(pte);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
|
|
|
|
|
unsigned long addr, pte_t *ptep)
|
|
|
|
|
{
|
2024-09-09 08:57:42 +00:00
|
|
|
pte_t old_pte = *ptep;
|
|
|
|
|
set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
|
2024-09-09 08:52:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
|
|
|
|
|
unsigned long addr, pte_t *ptep,
|
|
|
|
|
pte_t pte, int dirty)
|
|
|
|
|
{
|
2024-09-09 08:57:42 +00:00
|
|
|
int changed = !pte_same(*ptep, pte);
|
|
|
|
|
if (changed) {
|
|
|
|
|
set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
|
|
|
|
|
flush_tlb_page(vma, addr);
|
|
|
|
|
}
|
|
|
|
|
return changed;
|
2024-09-09 08:52:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline pte_t huge_ptep_get(pte_t *ptep)
|
|
|
|
|
{
|
|
|
|
|
return *ptep;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline int arch_prepare_hugepage(struct page *page)
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void arch_release_hugepage(struct page *page)
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
static inline void arch_clear_hugepage_flags(struct page *page)
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
2024-09-09 08:52:07 +00:00
|
|
|
#endif /* _ASM_SPARC64_HUGETLB_H */
|
