LXR linux/arch/riscv/mm/hugetlbpage.c

   1// SPDX-License-Identifier: GPL-2.0
   2#include <linux/hugetlb.h>
   3#include <linux/err.h>
   4
   5int pud_huge(pud_t pud)
   6{
   7        return pud_leaf(pud);
   8}
   9
  10int pmd_huge(pmd_t pmd)
  11{
  12        return pmd_leaf(pmd);
  13}
  14
  15bool __init arch_hugetlb_valid_size(unsigned long size)
  16{
  17        if (size == HPAGE_SIZE)
  18                return true;
  19        else if (IS_ENABLED(CONFIG_64BIT) && size == PUD_SIZE)
  20                return true;
  21        else
  22                return false;
  23}
  24
  25#ifdef CONFIG_CONTIG_ALLOC
  26static __init int gigantic_pages_init(void)
  27{
  28        /* With CONTIG_ALLOC, we can allocate gigantic pages at runtime */
  29        if (IS_ENABLED(CONFIG_64BIT))
  30                hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT);
  31        return 0;
  32}
  33arch_initcall(gigantic_pages_init);
  34#endif
  35