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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 */
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