922 static int subpage_protection(struct mm_struct *mm, unsigned long ea)  in subpage_protection()  argument
928 	if (ea >= spt->maxaddr)  in subpage_protection()
930 	if (ea < 0x100000000UL) {  in subpage_protection()
934 		sbpm = spt->protptrs[ea >> SBP_L3_SHIFT];  in subpage_protection()
938 	sbpp = sbpm[(ea >> SBP_L2_SHIFT) & (SBP_L2_COUNT - 1)];  in subpage_protection()
941 	spp = sbpp[(ea >> PAGE_SHIFT) & (SBP_L1_COUNT - 1)];  in subpage_protection()
944 	spp >>= 30 - 2 * ((ea >> 12) & 0xf);  in subpage_protection()
952 static inline int subpage_protection(struct mm_struct *mm, unsigned long ea)  in subpage_protection()  argument
958 void hash_failure_debug(unsigned long ea, unsigned long access,  in hash_failure_debug()  argument
965 		ea, access, current->comm);  in hash_failure_debug()
970 static void check_paca_psize(unsigned long ea, struct mm_struct *mm,  in check_paca_psize()  argument
974 		if (psize != get_paca_psize(ea)) {  in check_paca_psize()
992 int hash_page_mm(struct mm_struct *mm, unsigned long ea,  in hash_page_mm()  argument
1006 		ea, access, trap);  in hash_page_mm()
1009  	switch (REGION_ID(ea)) {  in hash_page_mm()
1017 		psize = get_slice_psize(mm, ea);  in hash_page_mm()
1018 		ssize = user_segment_size(ea);  in hash_page_mm()
1019 		vsid = get_vsid(mm->context.id, ea, ssize);  in hash_page_mm()
1022 		vsid = get_kernel_vsid(ea, mmu_kernel_ssize);  in hash_page_mm()
1023 		if (ea < VMALLOC_END)  in hash_page_mm()
1065 		ea &= ~((1ul << mmu_psize_defs[psize].shift) - 1);  in hash_page_mm()
1069 	ptep = __find_linux_pte_or_hugepte(pgdir, ea, &hugeshift);  in hash_page_mm()
1090 			rc = __hash_page_thp(ea, access, vsid, (pmd_t *)ptep,  in hash_page_mm()
1094 			rc = __hash_page_huge(ea, access, vsid, ptep, trap,  in hash_page_mm()
1107 			check_paca_psize(ea, mm, psize, user_region);  in hash_page_mm()
1122 		demote_segment_4k(mm, ea);  in hash_page_mm()
1132 			demote_segment_4k(mm, ea);  in hash_page_mm()
1134 		} else if (ea < VMALLOC_END) {  in hash_page_mm()
1149 		check_paca_psize(ea, mm, psize, user_region);  in hash_page_mm()
1154 		rc = __hash_page_64K(ea, access, vsid, ptep, trap,  in hash_page_mm()
1159 		int spp = subpage_protection(mm, ea);  in hash_page_mm()
1163 			rc = __hash_page_4K(ea, access, vsid, ptep, trap,  in hash_page_mm()
1171 		hash_failure_debug(ea, access, vsid, trap, ssize, psize,  in hash_page_mm()
1187 int hash_page(unsigned long ea, unsigned long access, unsigned long trap,  in hash_page()  argument
1193 	if (REGION_ID(ea) == VMALLOC_REGION_ID)  in hash_page()
1199 	return hash_page_mm(mm, ea, access, trap, flags);  in hash_page()
1203 void hash_preload(struct mm_struct *mm, unsigned long ea,  in hash_preload()  argument
1213 	BUG_ON(REGION_ID(ea) != USER_REGION_ID);  in hash_preload()
1217 	if (unlikely(get_slice_psize(mm, ea) != mm->context.user_psize))  in hash_preload()
1222 		" trap=%lx\n", mm, mm->pgd, ea, access, trap);  in hash_preload()
1230 	ssize = user_segment_size(ea);  in hash_preload()
1231 	vsid = get_vsid(mm->context.id, ea, ssize);  in hash_preload()
1244 	ptep = find_linux_pte_or_hugepte(pgdir, ea, &hugepage_shift);  in hash_preload()
1267 		rc = __hash_page_64K(ea, access, vsid, ptep, trap,  in hash_preload()
1271 		rc = __hash_page_4K(ea, access, vsid, ptep, trap, update_flags,  in hash_preload()
1272 				    ssize, subpage_protection(mm, ea));  in hash_preload()
1278 		hash_failure_debug(ea, access, vsid, trap, ssize,  in hash_preload()