athk/ath12k/dbring.c

11 					struct ath12k_dbring *ring,
23 	srng = &ab->hal.srng_list[ring->refill_srng.ring_id];
30 	ptr_aligned = PTR_ALIGN(ptr_unaligned, ring->buf_align);
31 	paddr = dma_map_single(ab->dev, ptr_aligned, ring->buf_sz,
38 	spin_lock_bh(&ring->idr_lock);
39 	buf_id = idr_alloc(&ring->bufs_idr, buff, 0, ring->bufs_max, gfp);
40 	spin_unlock_bh(&ring->idr_lock);
64 	spin_lock_bh(&ring->idr_lock);
65 	idr_remove(&ring->bufs_idr, buf_id);
66 	spin_unlock_bh(&ring->idr_lock);
68 	dma_unmap_single(ab->dev, paddr, ring->buf_sz,
76 				   struct ath12k_dbring *ring,
86 	srng = &ab->hal.srng_list[ring->refill_srng.ring_id];
91 	req_entries = min(num_free, ring->bufs_max);
93 	align = ring->buf_align;
94 	size = sizeof(*buff) + ring->buf_sz + align - 1;
101 		ret = ath12k_dbring_bufs_replenish(ar, ring, buff, gfp);
103 			ath12k_warn(ab, "failed to replenish db ring num_remain %d req_ent %d\n",
117 				struct ath12k_dbring *ring,
126 	arg.pdev_id = DP_SW2HW_MACID(ring->pdev_id);
128 	arg.base_paddr_lo = lower_32_bits(ring->refill_srng.paddr);
129 	arg.base_paddr_hi = upper_32_bits(ring->refill_srng.paddr);
130 	arg.head_idx_paddr_lo = lower_32_bits(ring->hp_addr);
131 	arg.head_idx_paddr_hi = upper_32_bits(ring->hp_addr);
132 	arg.tail_idx_paddr_lo = lower_32_bits(ring->tp_addr);
133 	arg.tail_idx_paddr_hi = upper_32_bits(ring->tp_addr);
134 	arg.num_elems = ring->bufs_max;
135 	arg.buf_size = ring->buf_sz;
136 	arg.num_resp_per_event = ring->num_resp_per_event;
137 	arg.event_timeout_ms = ring->event_timeout_ms;
141 		ath12k_warn(ar->ab, "failed to setup db ring cfg\n");
148 int ath12k_dbring_set_cfg(struct ath12k *ar, struct ath12k_dbring *ring,
153 	if (WARN_ON(!ring))
156 	ring->num_resp_per_event = num_resp_per_event;
157 	ring->event_timeout_ms = event_timeout_ms;
158 	ring->handler = handler;
164 			    struct ath12k_dbring *ring,
171 	srng = &ab->hal.srng_list[ring->refill_srng.ring_id];
172 	ring->bufs_max = ring->refill_srng.size /
175 	ring->buf_sz = db_cap->min_buf_sz;
176 	ring->buf_align = db_cap->min_buf_align;
177 	ring->pdev_id = db_cap->pdev_id;
178 	ring->hp_addr = ath12k_hal_srng_get_hp_addr(ab, srng);
179 	ring->tp_addr = ath12k_hal_srng_get_tp_addr(ab, srng);
181 	ret = ath12k_dbring_fill_bufs(ar, ring, GFP_KERNEL);
186 int ath12k_dbring_srng_setup(struct ath12k *ar, struct ath12k_dbring *ring,
191 	ret = ath12k_dp_srng_setup(ar->ab, &ring->refill_srng, HAL_RXDMA_DIR_BUF,
201 	ath12k_dp_srng_cleanup(ar->ab, &ring->refill_srng);
233 	struct ath12k_dbring *ring = NULL;
275 		ring = NULL;
281 	if (!ring) {
286 	srng = &ab->hal.srng_list[ring->refill_srng.ring_id];
288 	size = sizeof(*buff) + ring->buf_sz + ring->buf_align - 1;
304 		spin_lock_bh(&ring->idr_lock);
305 		buff = idr_find(&ring->bufs_idr, buf_id);
307 			spin_unlock_bh(&ring->idr_lock);
310 		idr_remove(&ring->bufs_idr, buf_id);
311 		spin_unlock_bh(&ring->idr_lock);
313 		dma_unmap_single(ab->dev, buff->paddr, ring->buf_sz,
316 		if (ring->handler) {
319 						      ring->buf_align);
320 			handler_data.data_sz = ring->buf_sz;
322 			ring->handler(ar, &handler_data);
326 		ath12k_dbring_bufs_replenish(ar, ring, buff, GFP_ATOMIC);
337 void ath12k_dbring_srng_cleanup(struct ath12k *ar, struct ath12k_dbring *ring)
339 	ath12k_dp_srng_cleanup(ar->ab, &ring->refill_srng);
342 void ath12k_dbring_buf_cleanup(struct ath12k *ar, struct ath12k_dbring *ring)
347 	spin_lock_bh(&ring->idr_lock);
348 	idr_for_each_entry(&ring->bufs_idr, buff, buf_id) {
349 		idr_remove(&ring->bufs_idr, buf_id);
351 				 ring->buf_sz, DMA_FROM_DEVICE);
355 	idr_destroy(&ring->bufs_idr);
356 	spin_unlock_bh(&ring->idr_lock);