22  * Return true, if the entry has a slot value which
31  * index from 0 - 15
47 	unsigned long vpn, hash, slot, gslot;  in __hash_page_4K()  local
89 	subpg_index = (ea & (PAGE_SIZE - 1)) >> shift;  in __hash_page_4K()
104 		 * clear the old slot details from the old and new pte.  in __hash_page_4K()
106 		 * want slot information there if we have a insert failure.  in __hash_page_4K()
128 		if (ret == -1)  in __hash_page_4K()
138 	 * Initialize all hidx entries to invalid value, the first time  in __hash_page_4K()
161 	/* Insert into the hash table, primary slot */  in __hash_page_4K()
162 	slot = mmu_hash_ops.hpte_insert(hpte_group, vpn, pa, rflags, 0,  in __hash_page_4K()
167 	if (unlikely(slot == -1)) {  in __hash_page_4K()
171 		slot = mmu_hash_ops.hpte_insert(hpte_group, vpn, pa,  in __hash_page_4K()
176 		soft_invalid = hpte_soft_invalid(slot);  in __hash_page_4K()
179 			 * We got a valid slot from a hardware point of view.  in __hash_page_4K()
184 			gslot = slot & _PTEIDX_GROUP_IX;  in __hash_page_4K()
190 		if (unlikely(slot == -1 || soft_invalid)) {  in __hash_page_4K()
192 			 * For soft invalid slot, let's ensure that we release a  in __hash_page_4K()
193 			 * slot from the primary, with the hope that we will  in __hash_page_4K()
194 			 * acquire that slot next time we try. This will ensure  in __hash_page_4K()
195 			 * that we do not get the same soft-invalid slot.  in __hash_page_4K()
208 	 * Hypervisor failure. Restore old pte and return -1  in __hash_page_4K()
211 	if (unlikely(slot == -2)) {  in __hash_page_4K()
215 		return -1;  in __hash_page_4K()
218 	new_pte |= pte_set_hidx(ptep, rpte, subpg_index, slot, PTRS_PER_PTE);  in __hash_page_4K()
236 	unsigned long vpn, hash, slot;  in __hash_page_64K()  local
253 		 * Check if PTE has the cache-inhibit bit set  in __hash_page_64K()
285 					       flags) == -1)  in __hash_page_64K()
297 		/* Insert into the hash table, primary slot */  in __hash_page_64K()
298 		slot = mmu_hash_ops.hpte_insert(hpte_group, vpn, pa, rflags, 0,  in __hash_page_64K()
304 		if (unlikely(slot == -1)) {  in __hash_page_64K()
306 			slot = mmu_hash_ops.hpte_insert(hpte_group, vpn, pa,  in __hash_page_64K()
311 			if (slot == -1) {  in __hash_page_64K()
323 		 * Hypervisor failure. Restore old pte and return -1  in __hash_page_64K()
326 		if (unlikely(slot == -2)) {  in __hash_page_64K()
330 			return -1;  in __hash_page_64K()
334 		new_pte |= pte_set_hidx(ptep, rpte, 0, slot, PTRS_PER_PTE);  in __hash_page_64K()