49  * hisi_acc_create_sgl_pool() - Create a hw sgl pool.
50  * @dev: The device which hw sgl pool belongs to.
51  * @count: Count of hisi_acc_hw_sgl in pool.
54  * This function creates a hw sgl pool, after this user can get hw sgl memory
61 	struct hisi_acc_sgl_pool *pool;  in hisi_acc_create_sgl_pool()  local
73 	 * the pool may allocate a block of memory of size PAGE_SIZE * 2^MAX_PAGE_ORDER,  in hisi_acc_create_sgl_pool()
86 	pool = kzalloc(sizeof(*pool), GFP_KERNEL);  in hisi_acc_create_sgl_pool()
87 	if (!pool)  in hisi_acc_create_sgl_pool()
89 	block = pool->mem_block;  in hisi_acc_create_sgl_pool()
115 	pool->sgl_num_per_block = sgl_num_per_block;  in hisi_acc_create_sgl_pool()
116 	pool->block_num = remain_sgl ? block_num + 1 : block_num;  in hisi_acc_create_sgl_pool()
117 	pool->count = count;  in hisi_acc_create_sgl_pool()
118 	pool->sgl_size = sgl_size;  in hisi_acc_create_sgl_pool()
119 	pool->sge_nr = sge_nr;  in hisi_acc_create_sgl_pool()
121 	return pool;  in hisi_acc_create_sgl_pool()
128 	kfree_sensitive(pool);  in hisi_acc_create_sgl_pool()
134  * hisi_acc_free_sgl_pool() - Free a hw sgl pool.
135  * @dev: The device which hw sgl pool belongs to.
136  * @pool: Pointer of pool.
138  * This function frees memory of a hw sgl pool.
140 void hisi_acc_free_sgl_pool(struct device *dev, struct hisi_acc_sgl_pool *pool)  in hisi_acc_free_sgl_pool()  argument
145 	if (!dev || !pool)  in hisi_acc_free_sgl_pool()
148 	block = pool->mem_block;  in hisi_acc_free_sgl_pool()
150 	for (i = 0; i < pool->block_num; i++)  in hisi_acc_free_sgl_pool()
154 	kfree(pool);  in hisi_acc_free_sgl_pool()
158 static struct hisi_acc_hw_sgl *acc_get_sgl(struct hisi_acc_sgl_pool *pool,  in acc_get_sgl()  argument
164 	block = pool->mem_block;  in acc_get_sgl()
165 	block_index = index / pool->sgl_num_per_block;  in acc_get_sgl()
166 	offset = index % pool->sgl_num_per_block;  in acc_get_sgl()
168 	*hw_sgl_dma = block[block_index].sgl_dma + pool->sgl_size * offset;  in acc_get_sgl()
169 	return (void *)block[block_index].sgl + pool->sgl_size * offset;  in acc_get_sgl()
210  * @pool: Pool which hw sgl memory will be allocated in.
211  * @index: Index of hisi_acc_hw_sgl in pool.
220 			      struct hisi_acc_sgl_pool *pool, u32 index,  in hisi_acc_sg_buf_map_to_hw_sgl()  argument
230 	if (!dev || !sgl || !pool || !hw_sgl_dma || index >= pool->count)  in hisi_acc_sg_buf_map_to_hw_sgl()
241 	if (sg_n_mapped > pool->sge_nr) {  in hisi_acc_sg_buf_map_to_hw_sgl()
242 		dev_err(dev, "the number of entries in input scatterlist is bigger than SGL pool setting.\n");  in hisi_acc_sg_buf_map_to_hw_sgl()
247 	curr_hw_sgl = acc_get_sgl(pool, index, &curr_sgl_dma);  in hisi_acc_sg_buf_map_to_hw_sgl()
248 	curr_hw_sgl->entry_length_in_sgl = cpu_to_le16(pool->sge_nr);  in hisi_acc_sg_buf_map_to_hw_sgl()
257 	update_hw_sgl_sum_sge(curr_hw_sgl, pool->sge_nr);  in hisi_acc_sg_buf_map_to_hw_sgl()