249 int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj,  in mlx4_table_get()  argument
252 	u32 i = (obj & (table->num_obj - 1)) /  in mlx4_table_get()
253 			(MLX4_TABLE_CHUNK_SIZE / table->obj_size);  in mlx4_table_get()
256 	mutex_lock(&table->mutex);  in mlx4_table_get()
258 	if (table->icm[i]) {  in mlx4_table_get()
259 		++table->icm[i]->refcount;  in mlx4_table_get()
263 	table->icm[i] = mlx4_alloc_icm(dev, MLX4_TABLE_CHUNK_SIZE >> PAGE_SHIFT,  in mlx4_table_get()
264 				       (table->lowmem ? gfp : GFP_HIGHUSER) |  in mlx4_table_get()
265 				       __GFP_NOWARN, table->coherent);  in mlx4_table_get()
266 	if (!table->icm[i]) {  in mlx4_table_get()
271 	if (mlx4_MAP_ICM(dev, table->icm[i], table->virt +  in mlx4_table_get()
273 		mlx4_free_icm(dev, table->icm[i], table->coherent);  in mlx4_table_get()
274 		table->icm[i] = NULL;  in mlx4_table_get()
279 	++table->icm[i]->refcount;  in mlx4_table_get()
282 	mutex_unlock(&table->mutex);  in mlx4_table_get()
286 void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj)  in mlx4_table_put()  argument
291 	i = (obj & (table->num_obj - 1)) / (MLX4_TABLE_CHUNK_SIZE / table->obj_size);  in mlx4_table_put()
293 	mutex_lock(&table->mutex);  in mlx4_table_put()
295 	if (--table->icm[i]->refcount == 0) {  in mlx4_table_put()
297 		mlx4_UNMAP_ICM(dev, table->virt + offset,  in mlx4_table_put()
299 		mlx4_free_icm(dev, table->icm[i], table->coherent);  in mlx4_table_put()
300 		table->icm[i] = NULL;  in mlx4_table_put()
303 	mutex_unlock(&table->mutex);  in mlx4_table_put()
306 void *mlx4_table_find(struct mlx4_icm_table *table, u32 obj,  in mlx4_table_find()  argument
315 	if (!table->lowmem)  in mlx4_table_find()
318 	mutex_lock(&table->mutex);  in mlx4_table_find()
320 	idx = (u64) (obj & (table->num_obj - 1)) * table->obj_size;  in mlx4_table_find()
321 	icm = table->icm[idx / MLX4_TABLE_CHUNK_SIZE];  in mlx4_table_find()
349 	mutex_unlock(&table->mutex);  in mlx4_table_find()
353 int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,  in mlx4_table_get_range()  argument
356 	int inc = MLX4_TABLE_CHUNK_SIZE / table->obj_size;  in mlx4_table_get_range()
361 		err = mlx4_table_get(dev, table, i, GFP_KERNEL);  in mlx4_table_get_range()
371 		mlx4_table_put(dev, table, i);  in mlx4_table_get_range()
377 void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,  in mlx4_table_put_range()  argument
382 	for (i = start; i <= end; i += MLX4_TABLE_CHUNK_SIZE / table->obj_size)  in mlx4_table_put_range()
383 		mlx4_table_put(dev, table, i);  in mlx4_table_put_range()
386 int mlx4_init_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table,  in mlx4_init_icm_table()  argument
399 	table->icm      = kcalloc(num_icm, sizeof *table->icm, GFP_KERNEL);  in mlx4_init_icm_table()
400 	if (!table->icm)  in mlx4_init_icm_table()
402 	table->virt     = virt;  in mlx4_init_icm_table()
403 	table->num_icm  = num_icm;  in mlx4_init_icm_table()
404 	table->num_obj  = nobj;  in mlx4_init_icm_table()
405 	table->obj_size = obj_size;  in mlx4_init_icm_table()
406 	table->lowmem   = use_lowmem;  in mlx4_init_icm_table()
407 	table->coherent = use_coherent;  in mlx4_init_icm_table()
408 	mutex_init(&table->mutex);  in mlx4_init_icm_table()
417 		table->icm[i] = mlx4_alloc_icm(dev, chunk_size >> PAGE_SHIFT,  in mlx4_init_icm_table()
420 		if (!table->icm[i])  in mlx4_init_icm_table()
422 		if (mlx4_MAP_ICM(dev, table->icm[i], virt + i * MLX4_TABLE_CHUNK_SIZE)) {  in mlx4_init_icm_table()
423 			mlx4_free_icm(dev, table->icm[i], use_coherent);  in mlx4_init_icm_table()
424 			table->icm[i] = NULL;  in mlx4_init_icm_table()
432 		++table->icm[i]->refcount;  in mlx4_init_icm_table()
439 		if (table->icm[i]) {  in mlx4_init_icm_table()
442 			mlx4_free_icm(dev, table->icm[i], use_coherent);  in mlx4_init_icm_table()
445 	kfree(table->icm);  in mlx4_init_icm_table()
450 void mlx4_cleanup_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table)  in mlx4_cleanup_icm_table()  argument
454 	for (i = 0; i < table->num_icm; ++i)  in mlx4_cleanup_icm_table()
455 		if (table->icm[i]) {  in mlx4_cleanup_icm_table()
456 			mlx4_UNMAP_ICM(dev, table->virt + i * MLX4_TABLE_CHUNK_SIZE,  in mlx4_cleanup_icm_table()
458 			mlx4_free_icm(dev, table->icm[i], table->coherent);  in mlx4_cleanup_icm_table()
461 	kfree(table->icm);  in mlx4_cleanup_icm_table()