Contributors: 8
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| David Daney |
249 |
80.58% |
3 |
21.43% |
| Alexandre Ghiti |
15 |
4.85% |
5 |
35.71% |
| Bibo Mao |
11 |
3.56% |
1 |
7.14% |
| Ryan Roberts |
9 |
2.91% |
1 |
7.14% |
| Baolin Wang |
9 |
2.91% |
1 |
7.14% |
| Kefeng Wang |
9 |
2.91% |
1 |
7.14% |
| Hillf Danton |
4 |
1.29% |
1 |
7.14% |
| Gerald Schaefer |
3 |
0.97% |
1 |
7.14% |
| Total |
309 |
|
14 |
|
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2008, 2009 Cavium Networks, Inc.
*/
#ifndef __ASM_HUGETLB_H
#define __ASM_HUGETLB_H
#include <asm/page.h>
#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
static inline int prepare_hugepage_range(struct file *file,
unsigned long addr,
unsigned long len)
{
unsigned long task_size = STACK_TOP;
if (len > task_size)
return -ENOMEM;
if (task_size - len < addr)
return -EINVAL;
return 0;
}
#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep,
unsigned long sz)
{
pte_t clear;
pte_t pte = *ptep;
pte_val(clear) = (unsigned long)invalid_pte_table;
set_pte_at(mm, addr, ptep, clear);
return pte;
}
#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep)
{
pte_t pte;
unsigned long sz = huge_page_size(hstate_vma(vma));
/*
* clear the huge pte entry firstly, so that the other smp threads will
* not get old pte entry after finishing flush_tlb_page and before
* setting new huge pte entry
*/
pte = huge_ptep_get_and_clear(vma->vm_mm, addr, ptep, sz);
flush_tlb_page(vma, addr);
return pte;
}
#define __HAVE_ARCH_HUGE_PTE_NONE
static inline int huge_pte_none(pte_t pte)
{
unsigned long val = pte_val(pte) & ~_PAGE_GLOBAL;
return !val || (val == (unsigned long)invalid_pte_table);
}
#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);
/*
* There could be some standard sized pages in there,
* get them all.
*/
flush_tlb_range(vma, addr, addr + HPAGE_SIZE);
}
return changed;
}
#include <asm-generic/hugetlb.h>
#endif /* __ASM_HUGETLB_H */