1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2736d2169SHelge Deller #ifndef _ASM_PARISC64_HUGETLB_H 3736d2169SHelge Deller #define _ASM_PARISC64_HUGETLB_H 4736d2169SHelge Deller 5736d2169SHelge Deller #include <asm/page.h> 6736d2169SHelge Deller 7cea685d5SAlexandre Ghiti #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT 8736d2169SHelge Deller void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, 9736d2169SHelge Deller pte_t *ptep, pte_t pte); 10736d2169SHelge Deller 11a4d83853SAlexandre Ghiti #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR 12736d2169SHelge Deller pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, 13736d2169SHelge Deller pte_t *ptep); 14736d2169SHelge Deller 15736d2169SHelge Deller static inline int is_hugepage_only_range(struct mm_struct *mm, 16736d2169SHelge Deller unsigned long addr, 17736d2169SHelge Deller unsigned long len) { 18736d2169SHelge Deller return 0; 19736d2169SHelge Deller } 20736d2169SHelge Deller 21736d2169SHelge Deller /* 22736d2169SHelge Deller * If the arch doesn't supply something else, assume that hugepage 23736d2169SHelge Deller * size aligned regions are ok without further preparation. 24736d2169SHelge Deller */ 25736d2169SHelge Deller static inline int prepare_hugepage_range(struct file *file, 26736d2169SHelge Deller unsigned long addr, unsigned long len) 27736d2169SHelge Deller { 28736d2169SHelge Deller if (len & ~HPAGE_MASK) 29736d2169SHelge Deller return -EINVAL; 30736d2169SHelge Deller if (addr & ~HPAGE_MASK) 31736d2169SHelge Deller return -EINVAL; 32736d2169SHelge Deller return 0; 33736d2169SHelge Deller } 34736d2169SHelge Deller 35736d2169SHelge Deller static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, 36736d2169SHelge Deller unsigned long addr, pte_t *ptep) 37736d2169SHelge Deller { 38736d2169SHelge Deller } 39736d2169SHelge Deller 40736d2169SHelge Deller static inline int huge_pte_none(pte_t pte) 41736d2169SHelge Deller { 42736d2169SHelge Deller return pte_none(pte); 43736d2169SHelge Deller } 44736d2169SHelge Deller 45736d2169SHelge Deller static inline pte_t huge_pte_wrprotect(pte_t pte) 46736d2169SHelge Deller { 47736d2169SHelge Deller return pte_wrprotect(pte); 48736d2169SHelge Deller } 49736d2169SHelge Deller 50b0e55131SHelge Deller void huge_ptep_set_wrprotect(struct mm_struct *mm, 51b0e55131SHelge Deller unsigned long addr, pte_t *ptep); 52736d2169SHelge Deller 53b0e55131SHelge Deller int huge_ptep_set_access_flags(struct vm_area_struct *vma, 54736d2169SHelge Deller unsigned long addr, pte_t *ptep, 55b0e55131SHelge Deller pte_t pte, int dirty); 56736d2169SHelge Deller 57736d2169SHelge Deller static inline pte_t huge_ptep_get(pte_t *ptep) 58736d2169SHelge Deller { 59736d2169SHelge Deller return *ptep; 60736d2169SHelge Deller } 61736d2169SHelge Deller 62736d2169SHelge Deller static inline void arch_clear_hugepage_flags(struct page *page) 63736d2169SHelge Deller { 64736d2169SHelge Deller } 65736d2169SHelge Deller 661e5f50fcSAlexandre Ghiti #include <asm-generic/hugetlb.h> 671e5f50fcSAlexandre Ghiti 68736d2169SHelge Deller #endif /* _ASM_PARISC64_HUGETLB_H */ 69