59 static void pgt_set(unsigned long *old, unsigned long new, unsigned long addr,  in pgt_set()  argument
78 		crdte(*old, new, table, dtt, addr, S390_lowcore.kernel_asce);  in pgt_set()
80 		cspg(old, *old, new);  in pgt_set()
82 		csp((unsigned int *)old + 1, *old, new);  in pgt_set()
89 	pte_t *ptep, new;  in walk_pte_level()  local
95 		new = *ptep;  in walk_pte_level()
96 		if (pte_none(new))  in walk_pte_level()
99 			new = pte_wrprotect(new);  in walk_pte_level()
101 			new = pte_mkwrite_novma(pte_mkdirty(new));  in walk_pte_level()
103 			new = set_pte_bit(new, __pgprot(_PAGE_NOEXEC));  in walk_pte_level()
105 			new = clear_pte_bit(new, __pgprot(_PAGE_NOEXEC));  in walk_pte_level()
107 			new = set_pte_bit(new, __pgprot(_PAGE_INVALID));  in walk_pte_level()
109 			new = __pte(pte_val(new) & PAGE_MASK);  in walk_pte_level()
110 			new = set_pte_bit(new, PAGE_KERNEL);  in walk_pte_level()
112 				new = clear_pte_bit(new, __pgprot(_PAGE_NOEXEC));  in walk_pte_level()
114 		pgt_set((unsigned long *)ptep, pte_val(new), addr, CRDTE_DTT_PAGE);  in walk_pte_level()
126 	pmd_t new;  in split_pmd_page()  local
144 	new = __pmd(__pa(pt_dir) | _SEGMENT_ENTRY);  in split_pmd_page()
145 	pgt_set((unsigned long *)pmdp, pmd_val(new), addr, CRDTE_DTT_SEGMENT);  in split_pmd_page()
154 	pmd_t new = *pmdp;  in modify_pmd_page()  local
157 		new = pmd_wrprotect(new);  in modify_pmd_page()
159 		new = pmd_mkwrite_novma(pmd_mkdirty(new));  in modify_pmd_page()
161 		new = set_pmd_bit(new, __pgprot(_SEGMENT_ENTRY_NOEXEC));  in modify_pmd_page()
163 		new = clear_pmd_bit(new, __pgprot(_SEGMENT_ENTRY_NOEXEC));  in modify_pmd_page()
165 		new = set_pmd_bit(new, __pgprot(_SEGMENT_ENTRY_INVALID));  in modify_pmd_page()
167 		new = __pmd(pmd_val(new) & PMD_MASK);  in modify_pmd_page()
168 		new = set_pmd_bit(new, SEGMENT_KERNEL);  in modify_pmd_page()
170 			new = clear_pmd_bit(new, __pgprot(_SEGMENT_ENTRY_NOEXEC));  in modify_pmd_page()
172 	pgt_set((unsigned long *)pmdp, pmd_val(new), addr, CRDTE_DTT_SEGMENT);  in modify_pmd_page()
215 	pud_t new;  in split_pud_page()  local
233 	new = __pud(__pa(pm_dir) | _REGION3_ENTRY);  in split_pud_page()
234 	pgt_set((unsigned long *)pudp, pud_val(new), addr, CRDTE_DTT_REGION3);  in split_pud_page()
243 	pud_t new = *pudp;  in modify_pud_page()  local
246 		new = pud_wrprotect(new);  in modify_pud_page()
248 		new = pud_mkwrite(pud_mkdirty(new));  in modify_pud_page()
250 		new = set_pud_bit(new, __pgprot(_REGION_ENTRY_NOEXEC));  in modify_pud_page()
252 		new = clear_pud_bit(new, __pgprot(_REGION_ENTRY_NOEXEC));  in modify_pud_page()
254 		new = set_pud_bit(new, __pgprot(_REGION_ENTRY_INVALID));  in modify_pud_page()
256 		new = __pud(pud_val(new) & PUD_MASK);  in modify_pud_page()
257 		new = set_pud_bit(new, REGION3_KERNEL);  in modify_pud_page()
259 			new = clear_pud_bit(new, __pgprot(_REGION_ENTRY_NOEXEC));  in modify_pud_page()
261 	pgt_set((unsigned long *)pudp, pud_val(new), addr, CRDTE_DTT_REGION3);  in modify_pud_page()