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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_SH_HUGETLB_H
#define _ASM_SH_HUGETLB_H

#include <asm/cacheflush.h>
#include <asm/page.h>

static inline int is_hugepage_only_range(struct mm_struct *mm,
					 unsigned long addr,
					 unsigned long len) {
	return 0;
}

/*
 * If the arch doesn't supply something else, assume that hugepage
 * size aligned regions are ok without further preparation.
 */
#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
static inline int prepare_hugepage_range(struct file *file,
			unsigned long addr, unsigned long len)
{
	if (len & ~HPAGE_MASK)
		return -EINVAL;
	if (addr & ~HPAGE_MASK)
		return -EINVAL;
	return 0;
}

#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
					 unsigned long addr, pte_t *ptep)
{
}

static inline void arch_clear_hugepage_flags(struct page *page)
{
	clear_bit(PG_dcache_clean, &page->flags);
}

#include <asm-generic/hugetlb.h>

#endif /* _ASM_SH_HUGETLB_H */