39 lines
932 B
C
39 lines
932 B
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_SH_HUGETLB_H
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#define _ASM_SH_HUGETLB_H
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#include <asm/cacheflush.h>
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#include <asm/page.h>
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/*
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* If the arch doesn't supply something else, assume that hugepage
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* size aligned regions are ok without further preparation.
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*/
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#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
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static inline int prepare_hugepage_range(struct file *file,
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unsigned long addr, unsigned long len)
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{
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if (len & ~HPAGE_MASK)
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return -EINVAL;
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if (addr & ~HPAGE_MASK)
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return -EINVAL;
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return 0;
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}
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#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
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static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
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unsigned long addr, pte_t *ptep)
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{
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return *ptep;
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}
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static inline void arch_clear_hugepage_flags(struct page *page)
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{
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clear_bit(PG_dcache_clean, &page->flags);
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}
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#define arch_clear_hugepage_flags arch_clear_hugepage_flags
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#include <asm-generic/hugetlb.h>
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#endif /* _ASM_SH_HUGETLB_H */
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