258 int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj)  in mlx4_table_get()  argument
260 	u32 i = (obj & (table->num_obj - 1)) /  in mlx4_table_get()
261 			(MLX4_TABLE_CHUNK_SIZE / table->obj_size);  in mlx4_table_get()
264 	mutex_lock(&table->mutex);  in mlx4_table_get()
266 	if (table->icm[i]) {  in mlx4_table_get()
267 		++table->icm[i]->refcount;  in mlx4_table_get()
271 	table->icm[i] = mlx4_alloc_icm(dev, MLX4_TABLE_CHUNK_SIZE >> PAGE_SHIFT,  in mlx4_table_get()
272 				       (table->lowmem ? GFP_KERNEL : GFP_HIGHUSER) |  in mlx4_table_get()
273 				       __GFP_NOWARN, table->coherent);  in mlx4_table_get()
274 	if (!table->icm[i]) {  in mlx4_table_get()
279 	if (mlx4_MAP_ICM(dev, table->icm[i], table->virt +  in mlx4_table_get()
281 		mlx4_free_icm(dev, table->icm[i], table->coherent);  in mlx4_table_get()
282 		table->icm[i] = NULL;  in mlx4_table_get()
287 	++table->icm[i]->refcount;  in mlx4_table_get()
290 	mutex_unlock(&table->mutex);  in mlx4_table_get()
294 void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj)  in mlx4_table_put()  argument
299 	i = (obj & (table->num_obj - 1)) / (MLX4_TABLE_CHUNK_SIZE / table->obj_size);  in mlx4_table_put()
301 	mutex_lock(&table->mutex);  in mlx4_table_put()
303 	if (--table->icm[i]->refcount == 0) {  in mlx4_table_put()
305 		mlx4_UNMAP_ICM(dev, table->virt + offset,  in mlx4_table_put()
307 		mlx4_free_icm(dev, table->icm[i], table->coherent);  in mlx4_table_put()
308 		table->icm[i] = NULL;  in mlx4_table_put()
311 	mutex_unlock(&table->mutex);  in mlx4_table_put()
314 void *mlx4_table_find(struct mlx4_icm_table *table, u32 obj,  in mlx4_table_find()  argument
323 	if (!table->lowmem)  in mlx4_table_find()
326 	mutex_lock(&table->mutex);  in mlx4_table_find()
328 	idx = (u64) (obj & (table->num_obj - 1)) * table->obj_size;  in mlx4_table_find()
329 	icm = table->icm[idx / MLX4_TABLE_CHUNK_SIZE];  in mlx4_table_find()
340 			if (table->coherent) {  in mlx4_table_find()
378 	mutex_unlock(&table->mutex);  in mlx4_table_find()
382 int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,  in mlx4_table_get_range()  argument
385 	int inc = MLX4_TABLE_CHUNK_SIZE / table->obj_size;  in mlx4_table_get_range()
390 		err = mlx4_table_get(dev, table, i);  in mlx4_table_get_range()
400 		mlx4_table_put(dev, table, i);  in mlx4_table_get_range()
406 void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,  in mlx4_table_put_range()  argument
411 	for (i = start; i <= end; i += MLX4_TABLE_CHUNK_SIZE / table->obj_size)  in mlx4_table_put_range()
412 		mlx4_table_put(dev, table, i);  in mlx4_table_put_range()
415 int mlx4_init_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table,  in mlx4_init_icm_table()  argument
430 	table->icm      = kvcalloc(num_icm, sizeof(*table->icm), GFP_KERNEL);  in mlx4_init_icm_table()
431 	if (!table->icm)  in mlx4_init_icm_table()
433 	table->virt     = virt;  in mlx4_init_icm_table()
434 	table->num_icm  = num_icm;  in mlx4_init_icm_table()
435 	table->num_obj  = nobj;  in mlx4_init_icm_table()
436 	table->obj_size = obj_size;  in mlx4_init_icm_table()
437 	table->lowmem   = use_lowmem;  in mlx4_init_icm_table()
438 	table->coherent = use_coherent;  in mlx4_init_icm_table()
439 	mutex_init(&table->mutex);  in mlx4_init_icm_table()
448 		table->icm[i] = mlx4_alloc_icm(dev, chunk_size >> PAGE_SHIFT,  in mlx4_init_icm_table()
451 		if (!table->icm[i])  in mlx4_init_icm_table()
453 		if (mlx4_MAP_ICM(dev, table->icm[i], virt + i * MLX4_TABLE_CHUNK_SIZE)) {  in mlx4_init_icm_table()
454 			mlx4_free_icm(dev, table->icm[i], use_coherent);  in mlx4_init_icm_table()
455 			table->icm[i] = NULL;  in mlx4_init_icm_table()
463 		++table->icm[i]->refcount;  in mlx4_init_icm_table()
470 		if (table->icm[i]) {  in mlx4_init_icm_table()
473 			mlx4_free_icm(dev, table->icm[i], use_coherent);  in mlx4_init_icm_table()
476 	kvfree(table->icm);  in mlx4_init_icm_table()
481 void mlx4_cleanup_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table)  in mlx4_cleanup_icm_table()  argument
485 	for (i = 0; i < table->num_icm; ++i)  in mlx4_cleanup_icm_table()
486 		if (table->icm[i]) {  in mlx4_cleanup_icm_table()
487 			mlx4_UNMAP_ICM(dev, table->virt + i * MLX4_TABLE_CHUNK_SIZE,  in mlx4_cleanup_icm_table()
489 			mlx4_free_icm(dev, table->icm[i], table->coherent);  in mlx4_cleanup_icm_table()
492 	kvfree(table->icm);  in mlx4_cleanup_icm_table()