LXR linux/arch/sh/include/asm/hugetlb.h

   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 */
  43