40 static inline int pte_looks_normal(pte_t pte)  in pte_looks_normal()  argument
43 	if (pte_present(pte) && !pte_special(pte)) {  in pte_looks_normal()
44 		if (pte_ci(pte))  in pte_looks_normal()
46 		if (pte_user(pte))  in pte_looks_normal()
52 static struct page *maybe_pte_to_page(pte_t pte)  in maybe_pte_to_page()  argument
54 	unsigned long pfn = pte_pfn(pte);  in maybe_pte_to_page()
73 static pte_t set_pte_filter_hash(pte_t pte)  in set_pte_filter_hash()  argument
76 		return pte;  in set_pte_filter_hash()
78 	pte = __pte(pte_val(pte) & ~_PAGE_HPTEFLAGS);  in set_pte_filter_hash()
79 	if (pte_looks_normal(pte) && !(cpu_has_feature(CPU_FTR_COHERENT_ICACHE) ||  in set_pte_filter_hash()
81 		struct page *pg = maybe_pte_to_page(pte);  in set_pte_filter_hash()
83 			return pte;  in set_pte_filter_hash()
89 	return pte;  in set_pte_filter_hash()
94 static pte_t set_pte_filter_hash(pte_t pte) { return pte; }  in set_pte_filter_hash()  argument
102 static inline pte_t set_pte_filter(pte_t pte)  in set_pte_filter()  argument
107 		return set_pte_filter_hash(pte);  in set_pte_filter()
110 	if (!pte_exec(pte) || !pte_looks_normal(pte))  in set_pte_filter()
111 		return pte;  in set_pte_filter()
114 	pg = maybe_pte_to_page(pte);  in set_pte_filter()
116 		return pte;  in set_pte_filter()
120 		return pte;  in set_pte_filter()
126 		return pte;  in set_pte_filter()
130 	return pte_exprotect(pte);  in set_pte_filter()
133 static pte_t set_access_flags_filter(pte_t pte, struct vm_area_struct *vma,  in set_access_flags_filter()  argument
139 		return pte;  in set_access_flags_filter()
146 	if (dirty || pte_exec(pte) || !is_exec_fault())  in set_access_flags_filter()
147 		return pte;  in set_access_flags_filter()
155 		return pte;  in set_access_flags_filter()
159 	pg = maybe_pte_to_page(pte);  in set_access_flags_filter()
172 	return pte_mkexec(pte);  in set_access_flags_filter()
179 		pte_t pte)  in set_pte_at()  argument
191 	pte = set_pte_filter(pte);  in set_pte_at()
194 	__set_pte_at(mm, addr, ptep, pte, 0);  in set_pte_at()
230 			       pte_t pte, int dirty)  in huge_ptep_set_access_flags()  argument
238 	ptep_set_access_flags(vma, addr, ptep, pte, dirty);  in huge_ptep_set_access_flags()
243 	pte = set_access_flags_filter(pte, vma, dirty);  in huge_ptep_set_access_flags()
244 	changed = !pte_same(*(ptep), pte);  in huge_ptep_set_access_flags()
263 		__ptep_set_access_flags(vma, ptep, pte, addr, psize);  in huge_ptep_set_access_flags()
270 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte)  in set_huge_pte_at()  argument
274 	pte_basic_t *entry = &ptep->pte;  in set_huge_pte_at()
283 	pte = set_pte_filter(pte);  in set_huge_pte_at()
285 	val = pte_val(pte);  in set_huge_pte_at()