18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 28c2ecf20Sopenharmony_ci#ifndef _ASM_SH_HUGETLB_H 38c2ecf20Sopenharmony_ci#define _ASM_SH_HUGETLB_H 48c2ecf20Sopenharmony_ci 58c2ecf20Sopenharmony_ci#include <asm/cacheflush.h> 68c2ecf20Sopenharmony_ci#include <asm/page.h> 78c2ecf20Sopenharmony_ci 88c2ecf20Sopenharmony_ci/* 98c2ecf20Sopenharmony_ci * If the arch doesn't supply something else, assume that hugepage 108c2ecf20Sopenharmony_ci * size aligned regions are ok without further preparation. 118c2ecf20Sopenharmony_ci */ 128c2ecf20Sopenharmony_ci#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE 138c2ecf20Sopenharmony_cistatic inline int prepare_hugepage_range(struct file *file, 148c2ecf20Sopenharmony_ci unsigned long addr, unsigned long len) 158c2ecf20Sopenharmony_ci{ 168c2ecf20Sopenharmony_ci if (len & ~HPAGE_MASK) 178c2ecf20Sopenharmony_ci return -EINVAL; 188c2ecf20Sopenharmony_ci if (addr & ~HPAGE_MASK) 198c2ecf20Sopenharmony_ci return -EINVAL; 208c2ecf20Sopenharmony_ci return 0; 218c2ecf20Sopenharmony_ci} 228c2ecf20Sopenharmony_ci 238c2ecf20Sopenharmony_ci#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH 248c2ecf20Sopenharmony_cistatic inline void huge_ptep_clear_flush(struct vm_area_struct *vma, 258c2ecf20Sopenharmony_ci unsigned long addr, pte_t *ptep) 268c2ecf20Sopenharmony_ci{ 278c2ecf20Sopenharmony_ci} 288c2ecf20Sopenharmony_ci 298c2ecf20Sopenharmony_cistatic inline void arch_clear_hugepage_flags(struct page *page) 308c2ecf20Sopenharmony_ci{ 318c2ecf20Sopenharmony_ci clear_bit(PG_dcache_clean, &page->flags); 328c2ecf20Sopenharmony_ci} 338c2ecf20Sopenharmony_ci#define arch_clear_hugepage_flags arch_clear_hugepage_flags 348c2ecf20Sopenharmony_ci 358c2ecf20Sopenharmony_ci#include <asm-generic/hugetlb.h> 368c2ecf20Sopenharmony_ci 378c2ecf20Sopenharmony_ci#endif /* _ASM_SH_HUGETLB_H */ 38