Lines Matching refs:device
154 static struct dma_chan *dev_to_dma_chan(struct device *dev) in dev_to_dma_chan()
158 chan_dev = container_of(dev, typeof(*chan_dev), device); in dev_to_dma_chan()
162 static ssize_t memcpy_count_show(struct device *dev, in memcpy_count_show()
184 static ssize_t bytes_transferred_show(struct device *dev, in bytes_transferred_show()
206 static ssize_t in_use_show(struct device *dev, struct device_attribute *attr, in in_use_show()
232 static void chan_dev_release(struct device *dev) in chan_dev_release()
236 chan_dev = container_of(dev, typeof(*chan_dev), device); in chan_dev_release()
304 int node = dev_to_node(chan->device->dev); in dma_chan_is_local()
322 struct dma_device *device; in min_chan() local
327 list_for_each_entry(device, &dma_device_list, global_node) { in min_chan()
328 if (!dma_has_cap(cap, device->cap_mask) || in min_chan()
329 dma_has_cap(DMA_PRIVATE, device->cap_mask)) in min_chan()
331 list_for_each_entry(chan, &device->channels, device_node) { in min_chan()
364 struct dma_device *device; in dma_channel_rebalance() local
373 list_for_each_entry(device, &dma_device_list, global_node) { in dma_channel_rebalance()
374 if (dma_has_cap(DMA_PRIVATE, device->cap_mask)) in dma_channel_rebalance()
376 list_for_each_entry(chan, &device->channels, device_node) in dma_channel_rebalance()
392 static int dma_device_satisfies_mask(struct dma_device *device, in dma_device_satisfies_mask() argument
397 bitmap_and(has.bits, want->bits, device->cap_mask.bits, in dma_device_satisfies_mask()
404 return chan->device->owner; in dma_chan_to_owner()
425 struct dma_device *device = container_of(ref, struct dma_device, ref); in dma_device_release() local
427 list_del_rcu(&device->global_node); in dma_device_release()
430 if (device->device_release) in dma_device_release()
431 device->device_release(device); in dma_device_release()
434 static void dma_device_put(struct dma_device *device) in dma_device_put() argument
437 kref_put(&device->ref, dma_device_release); in dma_device_put()
460 ret = kref_get_unless_zero(&chan->device->ref); in dma_chan_get()
467 if (chan->device->device_alloc_chan_resources) { in dma_chan_get()
468 ret = chan->device->device_alloc_chan_resources(chan); in dma_chan_get()
473 if (!dma_has_cap(DMA_PRIVATE, chan->device->cap_mask)) in dma_chan_get()
481 dma_device_put(chan->device); in dma_chan_get()
502 if (!chan->client_count && chan->device->device_free_chan_resources) { in dma_chan_put()
505 chan->device->device_free_chan_resources(chan); in dma_chan_put()
515 dma_device_put(chan->device); in dma_chan_put()
528 dev_err(chan->device->dev, "%s: timeout!\n", __func__); in dma_sync_wait()
555 struct dma_device *device; in dma_issue_pending_all() local
559 list_for_each_entry_rcu(device, &dma_device_list, global_node) { in dma_issue_pending_all()
560 if (dma_has_cap(DMA_PRIVATE, device->cap_mask)) in dma_issue_pending_all()
562 list_for_each_entry(chan, &device->channels, device_node) in dma_issue_pending_all()
564 device->device_issue_pending(chan); in dma_issue_pending_all()
572 struct dma_device *device; in dma_get_slave_caps() local
577 device = chan->device; in dma_get_slave_caps()
580 if (!(test_bit(DMA_SLAVE, device->cap_mask.bits) || in dma_get_slave_caps()
581 test_bit(DMA_CYCLIC, device->cap_mask.bits))) in dma_get_slave_caps()
589 if (!device->directions) in dma_get_slave_caps()
592 caps->src_addr_widths = device->src_addr_widths; in dma_get_slave_caps()
593 caps->dst_addr_widths = device->dst_addr_widths; in dma_get_slave_caps()
594 caps->directions = device->directions; in dma_get_slave_caps()
595 caps->min_burst = device->min_burst; in dma_get_slave_caps()
596 caps->max_burst = device->max_burst; in dma_get_slave_caps()
597 caps->max_sg_burst = device->max_sg_burst; in dma_get_slave_caps()
598 caps->residue_granularity = device->residue_granularity; in dma_get_slave_caps()
599 caps->descriptor_reuse = device->descriptor_reuse; in dma_get_slave_caps()
600 caps->cmd_pause = !!device->device_pause; in dma_get_slave_caps()
601 caps->cmd_resume = !!device->device_resume; in dma_get_slave_caps()
602 caps->cmd_terminate = !!device->device_terminate_all; in dma_get_slave_caps()
611 if (device->device_caps) in dma_get_slave_caps()
612 device->device_caps(chan, caps); in dma_get_slave_caps()
655 static struct dma_chan *find_candidate(struct dma_device *device, in find_candidate() argument
659 struct dma_chan *chan = private_candidate(mask, device, fn, fn_param); in find_candidate()
668 dma_cap_set(DMA_PRIVATE, device->cap_mask); in find_candidate()
669 device->privatecnt++; in find_candidate()
674 dev_dbg(device->dev, "%s: %s module removed\n", in find_candidate()
676 list_del_rcu(&device->global_node); in find_candidate()
678 dev_dbg(device->dev, in find_candidate()
682 if (--device->privatecnt == 0) in find_candidate()
683 dma_cap_clear(DMA_PRIVATE, device->cap_mask); in find_candidate()
702 struct dma_device *device = chan->device; in dma_get_slave_channel() local
705 dma_cap_set(DMA_PRIVATE, device->cap_mask); in dma_get_slave_channel()
706 device->privatecnt++; in dma_get_slave_channel()
709 dev_dbg(chan->device->dev, in dma_get_slave_channel()
713 if (--device->privatecnt == 0) in dma_get_slave_channel()
714 dma_cap_clear(DMA_PRIVATE, device->cap_mask); in dma_get_slave_channel()
726 struct dma_chan *dma_get_any_slave_channel(struct dma_device *device) in dma_get_any_slave_channel() argument
737 chan = find_candidate(device, &mask, NULL, NULL); in dma_get_any_slave_channel()
758 struct dma_device *device, *_d; in __dma_request_channel() local
763 list_for_each_entry_safe(device, _d, &dma_device_list, global_node) { in __dma_request_channel()
765 if (np && device->dev->of_node && np != device->dev->of_node) in __dma_request_channel()
768 chan = find_candidate(device, mask, fn, fn_param); in __dma_request_channel()
785 static const struct dma_slave_map *dma_filter_match(struct dma_device *device, in dma_filter_match() argument
787 struct device *dev) in dma_filter_match()
791 if (!device->filter.mapcnt) in dma_filter_match()
794 for (i = 0; i < device->filter.mapcnt; i++) { in dma_filter_match()
795 const struct dma_slave_map *map = &device->filter.map[i]; in dma_filter_match()
812 struct dma_chan *dma_request_chan(struct device *dev, const char *name) in dma_request_chan()
865 if (sysfs_create_link(&chan->dev->device.kobj, &dev->kobj, in dma_request_chan()
868 if (sysfs_create_link(&dev->kobj, &chan->dev->device.kobj, chan->name)) in dma_request_chan()
909 if (--chan->device->privatecnt == 0) in dma_release_channel()
910 dma_cap_clear(DMA_PRIVATE, chan->device->cap_mask); in dma_release_channel()
913 sysfs_remove_link(&chan->dev->device.kobj, DMA_SLAVE_NAME); in dma_release_channel()
933 struct dma_device *device, *_d; in dmaengine_get() local
941 list_for_each_entry_safe(device, _d, &dma_device_list, global_node) { in dmaengine_get()
942 if (dma_has_cap(DMA_PRIVATE, device->cap_mask)) in dmaengine_get()
944 list_for_each_entry(chan, &device->channels, device_node) { in dmaengine_get()
948 list_del_rcu(&device->global_node); in dmaengine_get()
951 dev_dbg(chan->device->dev, in dmaengine_get()
972 struct dma_device *device, *_d; in dmaengine_put() local
979 list_for_each_entry_safe(device, _d, &dma_device_list, global_node) { in dmaengine_put()
980 if (dma_has_cap(DMA_PRIVATE, device->cap_mask)) in dmaengine_put()
982 list_for_each_entry(chan, &device->channels, device_node) in dmaengine_put()
989 static bool device_has_all_tx_types(struct dma_device *device) in device_has_all_tx_types() argument
996 if (!dma_has_cap(DMA_INTERRUPT, device->cap_mask)) in device_has_all_tx_types()
1001 if (!dma_has_cap(DMA_MEMCPY, device->cap_mask)) in device_has_all_tx_types()
1006 if (!dma_has_cap(DMA_XOR, device->cap_mask)) in device_has_all_tx_types()
1010 if (!dma_has_cap(DMA_XOR_VAL, device->cap_mask)) in device_has_all_tx_types()
1016 if (!dma_has_cap(DMA_PQ, device->cap_mask)) in device_has_all_tx_types()
1020 if (!dma_has_cap(DMA_PQ_VAL, device->cap_mask)) in device_has_all_tx_types()
1028 static int get_dma_id(struct dma_device *device) in get_dma_id() argument
1034 device->dev_id = rc; in get_dma_id()
1038 static int __dma_async_device_channel_register(struct dma_device *device, in __dma_async_device_channel_register() argument
1056 mutex_lock(&device->chan_mutex); in __dma_async_device_channel_register()
1057 chan->chan_id = ida_alloc(&device->chan_ida, GFP_KERNEL); in __dma_async_device_channel_register()
1058 mutex_unlock(&device->chan_mutex); in __dma_async_device_channel_register()
1066 chan->dev->device.class = &dma_devclass; in __dma_async_device_channel_register()
1067 chan->dev->device.parent = device->dev; in __dma_async_device_channel_register()
1069 chan->dev->dev_id = device->dev_id; in __dma_async_device_channel_register()
1070 dev_set_name(&chan->dev->device, "dma%dchan%d", in __dma_async_device_channel_register()
1071 device->dev_id, chan->chan_id); in __dma_async_device_channel_register()
1072 rc = device_register(&chan->dev->device); in __dma_async_device_channel_register()
1076 device->chancnt++; in __dma_async_device_channel_register()
1081 mutex_lock(&device->chan_mutex); in __dma_async_device_channel_register()
1082 ida_free(&device->chan_ida, chan->chan_id); in __dma_async_device_channel_register()
1083 mutex_unlock(&device->chan_mutex); in __dma_async_device_channel_register()
1092 int dma_async_device_channel_register(struct dma_device *device, in dma_async_device_channel_register() argument
1097 rc = __dma_async_device_channel_register(device, chan); in dma_async_device_channel_register()
1106 static void __dma_async_device_channel_unregister(struct dma_device *device, in __dma_async_device_channel_unregister() argument
1109 WARN_ONCE(!device->device_release && chan->client_count, in __dma_async_device_channel_unregister()
1113 device->chancnt--; in __dma_async_device_channel_unregister()
1116 mutex_lock(&device->chan_mutex); in __dma_async_device_channel_unregister()
1117 ida_free(&device->chan_ida, chan->chan_id); in __dma_async_device_channel_unregister()
1118 mutex_unlock(&device->chan_mutex); in __dma_async_device_channel_unregister()
1119 device_unregister(&chan->dev->device); in __dma_async_device_channel_unregister()
1123 void dma_async_device_channel_unregister(struct dma_device *device, in dma_async_device_channel_unregister() argument
1126 __dma_async_device_channel_unregister(device, chan); in dma_async_device_channel_unregister()
1139 int dma_async_device_register(struct dma_device *device) in dma_async_device_register() argument
1144 if (!device) in dma_async_device_register()
1148 if (!device->dev) { in dma_async_device_register()
1153 device->owner = device->dev->driver->owner; in dma_async_device_register()
1155 if (dma_has_cap(DMA_MEMCPY, device->cap_mask) && !device->device_prep_dma_memcpy) { in dma_async_device_register()
1156 dev_err(device->dev, in dma_async_device_register()
1162 if (dma_has_cap(DMA_XOR, device->cap_mask) && !device->device_prep_dma_xor) { in dma_async_device_register()
1163 dev_err(device->dev, in dma_async_device_register()
1169 if (dma_has_cap(DMA_XOR_VAL, device->cap_mask) && !device->device_prep_dma_xor_val) { in dma_async_device_register()
1170 dev_err(device->dev, in dma_async_device_register()
1176 if (dma_has_cap(DMA_PQ, device->cap_mask) && !device->device_prep_dma_pq) { in dma_async_device_register()
1177 dev_err(device->dev, in dma_async_device_register()
1183 if (dma_has_cap(DMA_PQ_VAL, device->cap_mask) && !device->device_prep_dma_pq_val) { in dma_async_device_register()
1184 dev_err(device->dev, in dma_async_device_register()
1190 if (dma_has_cap(DMA_MEMSET, device->cap_mask) && !device->device_prep_dma_memset) { in dma_async_device_register()
1191 dev_err(device->dev, in dma_async_device_register()
1197 if (dma_has_cap(DMA_INTERRUPT, device->cap_mask) && !device->device_prep_dma_interrupt) { in dma_async_device_register()
1198 dev_err(device->dev, in dma_async_device_register()
1204 if (dma_has_cap(DMA_CYCLIC, device->cap_mask) && !device->device_prep_dma_cyclic) { in dma_async_device_register()
1205 dev_err(device->dev, in dma_async_device_register()
1211 if (dma_has_cap(DMA_INTERLEAVE, device->cap_mask) && !device->device_prep_interleaved_dma) { in dma_async_device_register()
1212 dev_err(device->dev, in dma_async_device_register()
1219 if (!device->device_tx_status) { in dma_async_device_register()
1220 dev_err(device->dev, "Device tx_status is not defined\n"); in dma_async_device_register()
1225 if (!device->device_issue_pending) { in dma_async_device_register()
1226 dev_err(device->dev, "Device issue_pending is not defined\n"); in dma_async_device_register()
1230 if (!device->device_release) in dma_async_device_register()
1231 dev_dbg(device->dev, in dma_async_device_register()
1234 kref_init(&device->ref); in dma_async_device_register()
1239 if (device_has_all_tx_types(device)) in dma_async_device_register()
1240 dma_cap_set(DMA_ASYNC_TX, device->cap_mask); in dma_async_device_register()
1242 rc = get_dma_id(device); in dma_async_device_register()
1246 mutex_init(&device->chan_mutex); in dma_async_device_register()
1247 ida_init(&device->chan_ida); in dma_async_device_register()
1250 list_for_each_entry(chan, &device->channels, device_node) { in dma_async_device_register()
1251 rc = __dma_async_device_channel_register(device, chan); in dma_async_device_register()
1258 if (dmaengine_ref_count && !dma_has_cap(DMA_PRIVATE, device->cap_mask)) in dma_async_device_register()
1259 list_for_each_entry(chan, &device->channels, device_node) { in dma_async_device_register()
1273 list_add_tail_rcu(&device->global_node, &dma_device_list); in dma_async_device_register()
1274 if (dma_has_cap(DMA_PRIVATE, device->cap_mask)) in dma_async_device_register()
1275 device->privatecnt++; /* Always private */ in dma_async_device_register()
1279 dmaengine_debug_register(device); in dma_async_device_register()
1285 if (!device->chancnt) { in dma_async_device_register()
1286 ida_free(&dma_ida, device->dev_id); in dma_async_device_register()
1290 list_for_each_entry(chan, &device->channels, device_node) { in dma_async_device_register()
1296 device_unregister(&chan->dev->device); in dma_async_device_register()
1310 void dma_async_device_unregister(struct dma_device *device) in dma_async_device_unregister() argument
1314 dmaengine_debug_unregister(device); in dma_async_device_unregister()
1316 list_for_each_entry_safe(chan, n, &device->channels, device_node) in dma_async_device_unregister()
1317 __dma_async_device_channel_unregister(device, chan); in dma_async_device_unregister()
1324 dma_cap_set(DMA_PRIVATE, device->cap_mask); in dma_async_device_unregister()
1326 ida_free(&dma_ida, device->dev_id); in dma_async_device_unregister()
1327 dma_device_put(device); in dma_async_device_unregister()
1332 static void dmam_device_release(struct device *dev, void *res) in dmam_device_release()
1334 struct dma_device *device; in dmam_device_release() local
1336 device = *(struct dma_device **)res; in dmam_device_release()
1337 dma_async_device_unregister(device); in dmam_device_release()
1346 int dmaenginem_async_device_register(struct dma_device *device) in dmaenginem_async_device_register() argument
1355 ret = dma_async_device_register(device); in dmaenginem_async_device_register()
1357 *(struct dma_device **)p = device; in dmaenginem_async_device_register()
1358 devres_add(device->dev, p); in dmaenginem_async_device_register()
1408 struct device *dev = unmap->dev; in dmaengine_unmap()
1479 dmaengine_get_unmap_data(struct device *dev, int nr, gfp_t flags) in dmaengine_get_unmap_data()
1593 dev_err(tx->chan->device->dev, in dma_wait_for_async_tx()
1641 chan->device->device_issue_pending(chan); in dma_run_dependencies()