1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef _ASM_SH_HUGETLB_H
3*4882a593Smuzhiyun #define _ASM_SH_HUGETLB_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #include <asm/cacheflush.h>
6*4882a593Smuzhiyun #include <asm/page.h>
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun /*
9*4882a593Smuzhiyun * If the arch doesn't supply something else, assume that hugepage
10*4882a593Smuzhiyun * size aligned regions are ok without further preparation.
11*4882a593Smuzhiyun */
12*4882a593Smuzhiyun #define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
prepare_hugepage_range(struct file * file,unsigned long addr,unsigned long len)13*4882a593Smuzhiyun static inline int prepare_hugepage_range(struct file *file,
14*4882a593Smuzhiyun unsigned long addr, unsigned long len)
15*4882a593Smuzhiyun {
16*4882a593Smuzhiyun if (len & ~HPAGE_MASK)
17*4882a593Smuzhiyun return -EINVAL;
18*4882a593Smuzhiyun if (addr & ~HPAGE_MASK)
19*4882a593Smuzhiyun return -EINVAL;
20*4882a593Smuzhiyun return 0;
21*4882a593Smuzhiyun }
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
huge_ptep_clear_flush(struct vm_area_struct * vma,unsigned long addr,pte_t * ptep)24*4882a593Smuzhiyun static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
25*4882a593Smuzhiyun unsigned long addr, pte_t *ptep)
26*4882a593Smuzhiyun {
27*4882a593Smuzhiyun }
28*4882a593Smuzhiyun
arch_clear_hugepage_flags(struct page * page)29*4882a593Smuzhiyun static inline void arch_clear_hugepage_flags(struct page *page)
30*4882a593Smuzhiyun {
31*4882a593Smuzhiyun clear_bit(PG_dcache_clean, &page->flags);
32*4882a593Smuzhiyun }
33*4882a593Smuzhiyun #define arch_clear_hugepage_flags arch_clear_hugepage_flags
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun #include <asm-generic/hugetlb.h>
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun #endif /* _ASM_SH_HUGETLB_H */
38