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Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_SH_HUGETLB_H
3#define _ASM_SH_HUGETLB_H
4
5#include <asm/cacheflush.h>
6#include <asm/page.h>
7
8static inline int is_hugepage_only_range(struct mm_struct *mm,
9 unsigned long addr,
10 unsigned long len) {
11 return 0;
12}
13
14/*
15 * If the arch doesn't supply something else, assume that hugepage
16 * size aligned regions are ok without further preparation.
17 */
18#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
19static inline int prepare_hugepage_range(struct file *file,
20 unsigned long addr, unsigned long len)
21{
22 if (len & ~HPAGE_MASK)
23 return -EINVAL;
24 if (addr & ~HPAGE_MASK)
25 return -EINVAL;
26 return 0;
27}
28
29#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
30static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
31 unsigned long addr, pte_t *ptep)
32{
33}
34
35static inline void arch_clear_hugepage_flags(struct page *page)
36{
37 clear_bit(PG_dcache_clean, &page->flags);
38}
39
40#include <asm-generic/hugetlb.h>
41
42#endif /* _ASM_SH_HUGETLB_H */