You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
122 lines
3.0 KiB
122 lines
3.0 KiB
/* |
|
* Copyright 2010 Tilera Corporation. All Rights Reserved. |
|
* |
|
* This program is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU General Public License |
|
* as published by the Free Software Foundation, version 2. |
|
* |
|
* This program is distributed in the hope that it will be useful, but |
|
* WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
|
* NON INFRINGEMENT. See the GNU General Public License for |
|
* more details. |
|
*/ |
|
|
|
#ifndef _ASM_TILE_HUGETLB_H |
|
#define _ASM_TILE_HUGETLB_H |
|
|
|
#include <asm/page.h> |
|
#include <asm-generic/hugetlb.h> |
|
|
|
|
|
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) |
|
{ |
|
struct hstate *h = hstate_file(file); |
|
if (len & ~huge_page_mask(h)) |
|
return -EINVAL; |
|
if (addr & ~huge_page_mask(h)) |
|
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 set_huge_pte_at(struct mm_struct *mm, unsigned long addr, |
|
pte_t *ptep, pte_t pte) |
|
{ |
|
set_pte(ptep, pte); |
|
} |
|
|
|
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, |
|
unsigned long addr, pte_t *ptep) |
|
{ |
|
return ptep_get_and_clear(mm, addr, ptep); |
|
} |
|
|
|
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, |
|
unsigned long addr, pte_t *ptep) |
|
{ |
|
ptep_clear_flush(vma, addr, 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) |
|
{ |
|
ptep_set_wrprotect(mm, addr, ptep); |
|
} |
|
|
|
static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, |
|
unsigned long addr, pte_t *ptep, |
|
pte_t pte, int dirty) |
|
{ |
|
return ptep_set_access_flags(vma, addr, ptep, pte, dirty); |
|
} |
|
|
|
static inline pte_t huge_ptep_get(pte_t *ptep) |
|
{ |
|
return *ptep; |
|
} |
|
|
|
static inline void arch_clear_hugepage_flags(struct page *page) |
|
{ |
|
} |
|
|
|
#ifdef CONFIG_HUGETLB_SUPER_PAGES |
|
static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma, |
|
struct page *page, int writable) |
|
{ |
|
size_t pagesize = huge_page_size(hstate_vma(vma)); |
|
if (pagesize != PUD_SIZE && pagesize != PMD_SIZE) |
|
entry = pte_mksuper(entry); |
|
return entry; |
|
} |
|
#define arch_make_huge_pte arch_make_huge_pte |
|
|
|
/* Sizes to scale up page size for PTEs with HV_PTE_SUPER bit. */ |
|
enum { |
|
HUGE_SHIFT_PGDIR = 0, |
|
HUGE_SHIFT_PMD = 1, |
|
HUGE_SHIFT_PAGE = 2, |
|
HUGE_SHIFT_ENTRIES |
|
}; |
|
extern int huge_shift[HUGE_SHIFT_ENTRIES]; |
|
#endif |
|
|
|
#endif /* _ASM_TILE_HUGETLB_H */
|
|
|