254 int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj,  in mlx4_table_get()  argument
257 	u32 i = (obj & (table->num_obj - 1)) /  in mlx4_table_get()
258 			(MLX4_TABLE_CHUNK_SIZE / table->obj_size);  in mlx4_table_get()
261 	mutex_lock(&table->mutex);  in mlx4_table_get()
263 	if (table->icm[i]) {  in mlx4_table_get()
264 		++table->icm[i]->refcount;  in mlx4_table_get()
268 	table->icm[i] = mlx4_alloc_icm(dev, MLX4_TABLE_CHUNK_SIZE >> PAGE_SHIFT,  in mlx4_table_get()
269 				       (table->lowmem ? gfp : GFP_HIGHUSER) |  in mlx4_table_get()
270 				       __GFP_NOWARN, table->coherent);  in mlx4_table_get()
271 	if (!table->icm[i]) {  in mlx4_table_get()
276 	if (mlx4_MAP_ICM(dev, table->icm[i], table->virt +  in mlx4_table_get()
278 		mlx4_free_icm(dev, table->icm[i], table->coherent);  in mlx4_table_get()
279 		table->icm[i] = NULL;  in mlx4_table_get()
284 	++table->icm[i]->refcount;  in mlx4_table_get()
287 	mutex_unlock(&table->mutex);  in mlx4_table_get()
291 void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj)  in mlx4_table_put()  argument
296 	i = (obj & (table->num_obj - 1)) / (MLX4_TABLE_CHUNK_SIZE / table->obj_size);  in mlx4_table_put()
298 	mutex_lock(&table->mutex);  in mlx4_table_put()
300 	if (--table->icm[i]->refcount == 0) {  in mlx4_table_put()
302 		mlx4_UNMAP_ICM(dev, table->virt + offset,  in mlx4_table_put()
304 		mlx4_free_icm(dev, table->icm[i], table->coherent);  in mlx4_table_put()
305 		table->icm[i] = NULL;  in mlx4_table_put()
308 	mutex_unlock(&table->mutex);  in mlx4_table_put()
311 void *mlx4_table_find(struct mlx4_icm_table *table, u32 obj,  in mlx4_table_find()  argument
320 	if (!table->lowmem)  in mlx4_table_find()
323 	mutex_lock(&table->mutex);  in mlx4_table_find()
325 	idx = (u64) (obj & (table->num_obj - 1)) * table->obj_size;  in mlx4_table_find()
326 	icm = table->icm[idx / MLX4_TABLE_CHUNK_SIZE];  in mlx4_table_find()
354 	mutex_unlock(&table->mutex);  in mlx4_table_find()
358 int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,  in mlx4_table_get_range()  argument
361 	int inc = MLX4_TABLE_CHUNK_SIZE / table->obj_size;  in mlx4_table_get_range()
366 		err = mlx4_table_get(dev, table, i, GFP_KERNEL);  in mlx4_table_get_range()
376 		mlx4_table_put(dev, table, i);  in mlx4_table_get_range()
382 void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,  in mlx4_table_put_range()  argument
387 	for (i = start; i <= end; i += MLX4_TABLE_CHUNK_SIZE / table->obj_size)  in mlx4_table_put_range()
388 		mlx4_table_put(dev, table, i);  in mlx4_table_put_range()
391 int mlx4_init_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table,  in mlx4_init_icm_table()  argument
404 	table->icm      = kcalloc(num_icm, sizeof *table->icm, GFP_KERNEL);  in mlx4_init_icm_table()
405 	if (!table->icm)  in mlx4_init_icm_table()
407 	table->virt     = virt;  in mlx4_init_icm_table()
408 	table->num_icm  = num_icm;  in mlx4_init_icm_table()
409 	table->num_obj  = nobj;  in mlx4_init_icm_table()
410 	table->obj_size = obj_size;  in mlx4_init_icm_table()
411 	table->lowmem   = use_lowmem;  in mlx4_init_icm_table()
412 	table->coherent = use_coherent;  in mlx4_init_icm_table()
413 	mutex_init(&table->mutex);  in mlx4_init_icm_table()
422 		table->icm[i] = mlx4_alloc_icm(dev, chunk_size >> PAGE_SHIFT,  in mlx4_init_icm_table()
425 		if (!table->icm[i])  in mlx4_init_icm_table()
427 		if (mlx4_MAP_ICM(dev, table->icm[i], virt + i * MLX4_TABLE_CHUNK_SIZE)) {  in mlx4_init_icm_table()
428 			mlx4_free_icm(dev, table->icm[i], use_coherent);  in mlx4_init_icm_table()
429 			table->icm[i] = NULL;  in mlx4_init_icm_table()
437 		++table->icm[i]->refcount;  in mlx4_init_icm_table()
444 		if (table->icm[i]) {  in mlx4_init_icm_table()
447 			mlx4_free_icm(dev, table->icm[i], use_coherent);  in mlx4_init_icm_table()
450 	kfree(table->icm);  in mlx4_init_icm_table()
455 void mlx4_cleanup_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table)  in mlx4_cleanup_icm_table()  argument
459 	for (i = 0; i < table->num_icm; ++i)  in mlx4_cleanup_icm_table()
460 		if (table->icm[i]) {  in mlx4_cleanup_icm_table()
461 			mlx4_UNMAP_ICM(dev, table->virt + i * MLX4_TABLE_CHUNK_SIZE,  in mlx4_cleanup_icm_table()
463 			mlx4_free_icm(dev, table->icm[i], table->coherent);  in mlx4_cleanup_icm_table()
466 	kfree(table->icm);  in mlx4_cleanup_icm_table()