[mirror_ubuntu-hirsute-kernel.git] / arch / riscv / mm / hugetlbpage.c

// SPDX-License-Identifier: GPL-2.0
#include <linux/hugetlb.h>
#include <linux/err.h>

int pud_huge(pud_t pud)
{
	return pud_leaf(pud);
}

int pmd_huge(pmd_t pmd)
{
	return pmd_leaf(pmd);
}

bool __init arch_hugetlb_valid_size(unsigned long size)
{
	if (size == HPAGE_SIZE)
		return true;
	else if (IS_ENABLED(CONFIG_64BIT) && size == PUD_SIZE)
		return true;
	else
		return false;
}

#ifdef CONFIG_CONTIG_ALLOC
static __init int gigantic_pages_init(void)
{
	/* With CONTIG_ALLOC, we can allocate gigantic pages at runtime */
	if (IS_ENABLED(CONFIG_64BIT))
		hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT);
	return 0;
}
arch_initcall(gigantic_pages_init);
#endif
Commit	Line	Data
9e953cda AG	1	// SPDX-License-Identifier: GPL-2.0
	2	#include <linux/hugetlb.h>
	3	#include <linux/err.h>
	4
	5	int pud_huge(pud_t pud)
	6	{
3133287b	7	return pud_leaf(pud);
9e953cda AG	8	}
	9
	10	int pmd_huge(pmd_t pmd)
	11	{
3133287b	12	return pmd_leaf(pmd);
9e953cda AG	13	}
9e953cda AG	14
ae94da89 MK	15	bool __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
9e953cda AG	25	#ifdef CONFIG_CONTIG_ALLOC
	26	static __init int gigantic_pages_init(void)
	27	{
	28	/* With CONTIG_ALLOC, we can allocate gigantic pages at runtime */
38237830	29	if (IS_ENABLED(CONFIG_64BIT))
9e953cda AG	30	hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT);
	31	return 0;
	32	}
	33	arch_initcall(gigantic_pages_init);
	34	#endif