Lines Matching refs:rh
55 #define rh_reg_read(r) readl(rh->regs + (RH_##r))
56 #define rh_reg_write(r, v) writel(v, rh->regs + (RH_##r))
168 struct hci_rh_data *rh; in hci_dma_cleanup() local
175 rh = &rings->headers[i]; in hci_dma_cleanup()
182 if (rh->xfer) in hci_dma_cleanup()
184 rh->xfer_struct_sz * rh->xfer_entries, in hci_dma_cleanup()
185 rh->xfer, rh->xfer_dma); in hci_dma_cleanup()
186 if (rh->resp) in hci_dma_cleanup()
188 rh->resp_struct_sz * rh->xfer_entries, in hci_dma_cleanup()
189 rh->resp, rh->resp_dma); in hci_dma_cleanup()
190 kfree(rh->src_xfers); in hci_dma_cleanup()
191 if (rh->ibi_status) in hci_dma_cleanup()
193 rh->ibi_status_sz * rh->ibi_status_entries, in hci_dma_cleanup()
194 rh->ibi_status, rh->ibi_status_dma); in hci_dma_cleanup()
195 if (rh->ibi_data_dma) in hci_dma_cleanup()
196 dma_unmap_single(&hci->master.dev, rh->ibi_data_dma, in hci_dma_cleanup()
197 rh->ibi_chunk_sz * rh->ibi_chunks_total, in hci_dma_cleanup()
199 kfree(rh->ibi_data); in hci_dma_cleanup()
211 struct hci_rh_data *rh; in hci_dma_init() local
226 rings = kzalloc(sizeof(*rings) + nr_rings * sizeof(*rh), GFP_KERNEL); in hci_dma_init()
239 rh = &rings->headers[i]; in hci_dma_init()
240 rh->regs = hci->base_regs + offset; in hci_dma_init()
241 spin_lock_init(&rh->lock); in hci_dma_init()
242 init_completion(&rh->op_done); in hci_dma_init()
244 rh->xfer_entries = XFER_RING_ENTRIES; in hci_dma_init()
247 rh->xfer_struct_sz = FIELD_GET(CR_XFER_STRUCT_SIZE, regval); in hci_dma_init()
248 rh->resp_struct_sz = FIELD_GET(CR_RESP_STRUCT_SIZE, regval); in hci_dma_init()
250 rh->xfer_struct_sz, rh->resp_struct_sz); in hci_dma_init()
251 xfers_sz = rh->xfer_struct_sz * rh->xfer_entries; in hci_dma_init()
252 resps_sz = rh->resp_struct_sz * rh->xfer_entries; in hci_dma_init()
254 rh->xfer = dma_alloc_coherent(&hci->master.dev, xfers_sz, in hci_dma_init()
255 &rh->xfer_dma, GFP_KERNEL); in hci_dma_init()
256 rh->resp = dma_alloc_coherent(&hci->master.dev, resps_sz, in hci_dma_init()
257 &rh->resp_dma, GFP_KERNEL); in hci_dma_init()
258 rh->src_xfers = in hci_dma_init()
259 kmalloc_array(rh->xfer_entries, sizeof(*rh->src_xfers), in hci_dma_init()
262 if (!rh->xfer || !rh->resp || !rh->src_xfers) in hci_dma_init()
265 rh_reg_write(CMD_RING_BASE_LO, lo32(rh->xfer_dma)); in hci_dma_init()
266 rh_reg_write(CMD_RING_BASE_HI, hi32(rh->xfer_dma)); in hci_dma_init()
267 rh_reg_write(RESP_RING_BASE_LO, lo32(rh->resp_dma)); in hci_dma_init()
268 rh_reg_write(RESP_RING_BASE_HI, hi32(rh->resp_dma)); in hci_dma_init()
270 regval = FIELD_PREP(CR_RING_SIZE, rh->xfer_entries); in hci_dma_init()
288 rh->ibi_status_sz = FIELD_GET(IBI_STATUS_STRUCT_SIZE, regval); in hci_dma_init()
289 rh->ibi_status_entries = IBI_STATUS_RING_ENTRIES; in hci_dma_init()
290 rh->ibi_chunks_total = IBI_CHUNK_POOL_SIZE; in hci_dma_init()
292 rh->ibi_chunk_sz = dma_get_cache_alignment(); in hci_dma_init()
293 rh->ibi_chunk_sz *= IBI_CHUNK_CACHELINES; in hci_dma_init()
294 BUG_ON(rh->ibi_chunk_sz > 256); in hci_dma_init()
296 ibi_status_ring_sz = rh->ibi_status_sz * rh->ibi_status_entries; in hci_dma_init()
297 ibi_data_ring_sz = rh->ibi_chunk_sz * rh->ibi_chunks_total; in hci_dma_init()
299 rh->ibi_status = in hci_dma_init()
301 &rh->ibi_status_dma, GFP_KERNEL); in hci_dma_init()
302 rh->ibi_data = kmalloc(ibi_data_ring_sz, GFP_KERNEL); in hci_dma_init()
304 if (!rh->ibi_status || !rh->ibi_data) in hci_dma_init()
306 rh->ibi_data_dma = in hci_dma_init()
307 dma_map_single(&hci->master.dev, rh->ibi_data, in hci_dma_init()
309 if (dma_mapping_error(&hci->master.dev, rh->ibi_data_dma)) { in hci_dma_init()
310 rh->ibi_data_dma = 0; in hci_dma_init()
316 rh->ibi_status_entries) | in hci_dma_init()
318 ilog2(rh->ibi_chunk_sz) - 2) | in hci_dma_init()
320 rh->ibi_chunks_total); in hci_dma_init()
358 struct hci_rh_data *rh; in hci_dma_queue_xfer() local
364 rh = &rings->headers[ring]; in hci_dma_queue_xfer()
370 u32 *ring_data = rh->xfer + rh->xfer_struct_sz * enqueue_ptr; in hci_dma_queue_xfer()
409 rh->src_xfers[enqueue_ptr] = xfer; in hci_dma_queue_xfer()
414 enqueue_ptr = (enqueue_ptr + 1) % rh->xfer_entries; in hci_dma_queue_xfer()
429 spin_lock_irq(&rh->lock); in hci_dma_queue_xfer()
434 spin_unlock_irq(&rh->lock); in hci_dma_queue_xfer()
443 struct hci_rh_data *rh = &rings->headers[xfer_list[0].ring_number]; in hci_dma_dequeue_xfer() local
449 if (wait_for_completion_timeout(&rh->op_done, HZ) == 0) { in hci_dma_dequeue_xfer()
469 u32 *ring_data = rh->xfer + rh->xfer_struct_sz * idx; in hci_dma_dequeue_xfer()
480 rh->src_xfers[idx] = NULL; in hci_dma_dequeue_xfer()
495 static void hci_dma_xfer_done(struct i3c_hci *hci, struct hci_rh_data *rh) in hci_dma_xfer_done() argument
498 unsigned int tid, done_ptr = rh->done_ptr; in hci_dma_xfer_done()
506 ring_resp = rh->resp + rh->resp_struct_sz * done_ptr; in hci_dma_xfer_done()
511 xfer = rh->src_xfers[done_ptr]; in hci_dma_xfer_done()
528 done_ptr = (done_ptr + 1) % rh->xfer_entries; in hci_dma_xfer_done()
529 rh->done_ptr = done_ptr; in hci_dma_xfer_done()
533 spin_lock(&rh->lock); in hci_dma_xfer_done()
538 spin_unlock(&rh->lock); in hci_dma_xfer_done()
582 static void hci_dma_process_ibi(struct i3c_hci *hci, struct hci_rh_data *rh) in hci_dma_process_ibi() argument
609 ptr = (ptr + 1) % rh->ibi_status_entries) { in hci_dma_process_ibi()
613 ring_ibi_status = rh->ibi_status + rh->ibi_status_sz * ptr; in hci_dma_process_ibi()
631 ibi_size += chunks * rh->ibi_chunk_sz; in hci_dma_process_ibi()
647 deq_ptr %= rh->ibi_status_entries; in hci_dma_process_ibi()
687 ibi_data_offset = rh->ibi_chunk_sz * rh->ibi_chunk_ptr; in hci_dma_process_ibi()
688 ring_ibi_data = rh->ibi_data + ibi_data_offset; in hci_dma_process_ibi()
689 ring_ibi_data_dma = rh->ibi_data_dma + ibi_data_offset; in hci_dma_process_ibi()
690 first_part = (rh->ibi_chunks_total - rh->ibi_chunk_ptr) in hci_dma_process_ibi()
691 * rh->ibi_chunk_sz; in hci_dma_process_ibi()
701 ring_ibi_data = rh->ibi_data; in hci_dma_process_ibi()
702 ring_ibi_data_dma = rh->ibi_data_dma; in hci_dma_process_ibi()
716 spin_lock(&rh->lock); in hci_dma_process_ibi()
721 spin_unlock(&rh->lock); in hci_dma_process_ibi()
724 rh->ibi_chunk_ptr += ibi_chunks; in hci_dma_process_ibi()
725 rh->ibi_chunk_ptr %= rh->ibi_chunks_total; in hci_dma_process_ibi()
738 struct hci_rh_data *rh; in hci_dma_irq_handler() local
745 rh = &rings->headers[i]; in hci_dma_irq_handler()
753 hci_dma_process_ibi(hci, rh); in hci_dma_irq_handler()
755 hci_dma_xfer_done(hci, rh); in hci_dma_irq_handler()
757 complete(&rh->op_done); in hci_dma_irq_handler()