Contributors: 20
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Gerald Schaefer |
136 |
29.76% |
5 |
14.29% |
| Martin Schwidefsky |
112 |
24.51% |
3 |
8.57% |
| Oscar Salvador |
33 |
7.22% |
1 |
2.86% |
| Andrew Morton |
29 |
6.35% |
2 |
5.71% |
| Ryan Roberts |
27 |
5.91% |
2 |
5.71% |
| Heiko Carstens |
24 |
5.25% |
5 |
14.29% |
| Linus Torvalds (pre-git) |
21 |
4.60% |
3 |
8.57% |
| Peter Xu |
21 |
4.60% |
1 |
2.86% |
| Janosch Frank |
16 |
3.50% |
1 |
2.86% |
| Linus Torvalds |
10 |
2.19% |
2 |
5.71% |
| Matthew Wilcox |
6 |
1.31% |
1 |
2.86% |
| David S. Miller |
4 |
0.88% |
1 |
2.86% |
| Punit Agrawal |
4 |
0.88% |
1 |
2.86% |
| Baolin Wang |
3 |
0.66% |
1 |
2.86% |
| Will Deacon |
2 |
0.44% |
1 |
2.86% |
| Mike Rapoport |
2 |
0.44% |
1 |
2.86% |
| Dominik Dingel |
2 |
0.44% |
1 |
2.86% |
| Aneesh Kumar K.V |
2 |
0.44% |
1 |
2.86% |
| Anshuman Khandual |
2 |
0.44% |
1 |
2.86% |
| Greg Kroah-Hartman |
1 |
0.22% |
1 |
2.86% |
| Total |
457 |
|
35 |
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
* IBM System z Huge TLB Page Support for Kernel.
*
* Copyright IBM Corp. 2008
* Author(s): Gerald Schaefer <gerald.schaefer@de.ibm.com>
*/
#ifndef _ASM_S390_HUGETLB_H
#define _ASM_S390_HUGETLB_H
#include <linux/cpufeature.h>
#include <linux/pgtable.h>
#include <linux/swap.h>
#include <linux/swapops.h>
#include <asm/page.h>
#define hugepages_supported() cpu_has_edat1()
#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte, unsigned long sz);
void __set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte);
#define __HAVE_ARCH_HUGE_PTEP_GET
pte_t huge_ptep_get(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
pte_t __huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep);
#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)
{
return __huge_ptep_get_and_clear(mm, addr, ptep);
}
static inline void arch_clear_hugetlb_flags(struct folio *folio)
{
clear_bit(PG_arch_1, &folio->flags);
}
#define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
#define __HAVE_ARCH_HUGE_PTE_CLEAR
static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, unsigned long sz)
{
if ((pte_val(*ptep) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R3)
set_pte(ptep, __pte(_REGION3_ENTRY_EMPTY));
else
set_pte(ptep, __pte(_SEGMENT_ENTRY_EMPTY));
}
#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
unsigned long address, pte_t *ptep)
{
return __huge_ptep_get_and_clear(vma->vm_mm, address, 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(huge_ptep_get(vma->vm_mm, addr, ptep), pte);
if (changed) {
__huge_ptep_get_and_clear(vma->vm_mm, addr, ptep);
__set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
}
return changed;
}
#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
pte_t pte = __huge_ptep_get_and_clear(mm, addr, ptep);
__set_huge_pte_at(mm, addr, ptep, pte_wrprotect(pte));
}
#define __HAVE_ARCH_HUGE_PTE_MKUFFD_WP
static inline pte_t huge_pte_mkuffd_wp(pte_t pte)
{
return pte;
}
#define __HAVE_ARCH_HUGE_PTE_CLEAR_UFFD_WP
static inline pte_t huge_pte_clear_uffd_wp(pte_t pte)
{
return pte;
}
#define __HAVE_ARCH_HUGE_PTE_UFFD_WP
static inline int huge_pte_uffd_wp(pte_t pte)
{
return 0;
}
#include <asm-generic/hugetlb.h>
#endif /* _ASM_S390_HUGETLB_H */