hugetlb: introduce generic version of huge_ptep_set_wrprotect()
[muen/linux.git] / arch / x86 / include / asm / hugetlb.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_X86_HUGETLB_H
3 #define _ASM_X86_HUGETLB_H
4
5 #include <asm/page.h>
6 #include <asm-generic/hugetlb.h>
7
8 #define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE)
9
10 static inline int is_hugepage_only_range(struct mm_struct *mm,
11                                          unsigned long addr,
12                                          unsigned long len) {
13         return 0;
14 }
15
16 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
17                                              unsigned long addr, pte_t *ptep,
18                                              pte_t pte, int dirty)
19 {
20         return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
21 }
22
23 static inline pte_t huge_ptep_get(pte_t *ptep)
24 {
25         return *ptep;
26 }
27
28 static inline void arch_clear_hugepage_flags(struct page *page)
29 {
30 }
31
32 #ifdef CONFIG_ARCH_HAS_GIGANTIC_PAGE
33 static inline bool gigantic_page_supported(void) { return true; }
34 #endif
35
36 #endif /* _ASM_X86_HUGETLB_H */