| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _ASM_SH_HUGETLB_H |
| #define _ASM_SH_HUGETLB_H |
| |
| #include <asm/cacheflush.h> |
| #include <asm/page.h> |
| |
| /* |
| * 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 pte_t huge_ptep_clear_flush(struct vm_area_struct *vma, |
| unsigned long addr, pte_t *ptep) |
| { |
| return *ptep; |
| } |
| |
| static inline void arch_clear_hugepage_flags(struct page *page) |
| { |
| clear_bit(PG_dcache_clean, &page->flags); |
| } |
| #define arch_clear_hugepage_flags arch_clear_hugepage_flags |
| |
| #include <asm-generic/hugetlb.h> |
| |
| #endif /* _ASM_SH_HUGETLB_H */ |
