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
   8/*
   9 * If the arch doesn't supply something else, assume that hugepage
  10 * size aligned regions are ok without further preparation.
  11 */
  12#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
  13static inline int prepare_hugepage_range(struct file *file,
  14                        unsigned long addr, unsigned long len)
  15{
  16        if (len & ~HPAGE_MASK)
  17                return -EINVAL;
  18        if (addr & ~HPAGE_MASK)
  19                return -EINVAL;
  20        return 0;
  21}
  22
  23#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
  24static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
  25                                         unsigned long addr, pte_t *ptep)
  26{
  27}
  28
  29static inline void arch_clear_hugepage_flags(struct page *page)
  30{
  31        clear_bit(PG_dcache_clean, &page->flags);
  32}
  33#define arch_clear_hugepage_flags arch_clear_hugepage_flags
  34
  35#include <asm-generic/hugetlb.h>
  36
  37#endif /* _ASM_SH_HUGETLB_H */
  38