Lines Matching refs:bdev
350 struct bam_device *bdev; member
408 static inline void __iomem *bam_addr(struct bam_device *bdev, u32 pipe, in bam_addr() argument
411 const struct reg_offset_data r = bdev->layout[reg]; in bam_addr()
413 return bdev->regs + r.base_offset + in bam_addr()
416 r.ee_mult * bdev->ee; in bam_addr()
427 struct bam_device *bdev = bchan->bdev; in bam_reset_channel() local
432 writel_relaxed(1, bam_addr(bdev, bchan->id, BAM_P_RST)); in bam_reset_channel()
433 writel_relaxed(0, bam_addr(bdev, bchan->id, BAM_P_RST)); in bam_reset_channel()
452 struct bam_device *bdev = bchan->bdev; in bam_chan_init_hw() local
463 bam_addr(bdev, bchan->id, BAM_P_DESC_FIFO_ADDR)); in bam_chan_init_hw()
465 bam_addr(bdev, bchan->id, BAM_P_FIFO_SIZES)); in bam_chan_init_hw()
469 bam_addr(bdev, bchan->id, BAM_P_IRQ_EN)); in bam_chan_init_hw()
472 val = readl_relaxed(bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_chan_init_hw()
474 writel_relaxed(val, bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_chan_init_hw()
484 writel_relaxed(val, bam_addr(bdev, bchan->id, BAM_P_CTRL)); in bam_chan_init_hw()
502 struct bam_device *bdev = bchan->bdev; in bam_alloc_chan() local
508 bchan->fifo_virt = dma_alloc_wc(bdev->dev, BAM_DESC_FIFO_SIZE, in bam_alloc_chan()
512 dev_err(bdev->dev, "Failed to allocate desc fifo\n"); in bam_alloc_chan()
537 struct bam_device *bdev = bchan->bdev; in bam_free_chan() local
542 ret = bam_pm_runtime_get_sync(bdev->dev); in bam_free_chan()
549 dev_err(bchan->bdev->dev, "Cannot free busy channel\n"); in bam_free_chan()
557 dma_free_wc(bdev->dev, BAM_DESC_FIFO_SIZE, bchan->fifo_virt, in bam_free_chan()
562 val = readl_relaxed(bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_free_chan()
564 writel_relaxed(val, bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_free_chan()
567 writel_relaxed(0, bam_addr(bdev, bchan->id, BAM_P_IRQ_EN)); in bam_free_chan()
570 pm_runtime_mark_last_busy(bdev->dev); in bam_free_chan()
571 pm_runtime_put_autosuspend(bdev->dev); in bam_free_chan()
612 struct bam_device *bdev = bchan->bdev; in bam_prep_slave_sg() local
621 dev_err(bdev->dev, "invalid dma direction\n"); in bam_prep_slave_sg()
738 struct bam_device *bdev = bchan->bdev; in bam_pause() local
742 ret = bam_pm_runtime_get_sync(bdev->dev); in bam_pause()
747 writel_relaxed(1, bam_addr(bdev, bchan->id, BAM_P_HALT)); in bam_pause()
750 pm_runtime_mark_last_busy(bdev->dev); in bam_pause()
751 pm_runtime_put_autosuspend(bdev->dev); in bam_pause()
764 struct bam_device *bdev = bchan->bdev; in bam_resume() local
768 ret = bam_pm_runtime_get_sync(bdev->dev); in bam_resume()
773 writel_relaxed(0, bam_addr(bdev, bchan->id, BAM_P_HALT)); in bam_resume()
776 pm_runtime_mark_last_busy(bdev->dev); in bam_resume()
777 pm_runtime_put_autosuspend(bdev->dev); in bam_resume()
789 static u32 process_channel_irqs(struct bam_device *bdev) in process_channel_irqs() argument
795 srcs = readl_relaxed(bam_addr(bdev, 0, BAM_IRQ_SRCS_EE)); in process_channel_irqs()
801 for (i = 0; i < bdev->num_channels; i++) { in process_channel_irqs()
802 struct bam_chan *bchan = &bdev->channels[i]; in process_channel_irqs()
808 pipe_stts = readl_relaxed(bam_addr(bdev, i, BAM_P_IRQ_STTS)); in process_channel_irqs()
810 writel_relaxed(pipe_stts, bam_addr(bdev, i, BAM_P_IRQ_CLR)); in process_channel_irqs()
814 offset = readl_relaxed(bam_addr(bdev, i, BAM_P_SW_OFSTS)) & in process_channel_irqs()
867 struct bam_device *bdev = data; in bam_dma_irq() local
871 srcs |= process_channel_irqs(bdev); in bam_dma_irq()
875 tasklet_schedule(&bdev->task); in bam_dma_irq()
877 ret = bam_pm_runtime_get_sync(bdev->dev); in bam_dma_irq()
882 clr_mask = readl_relaxed(bam_addr(bdev, 0, BAM_IRQ_STTS)); in bam_dma_irq()
890 writel_relaxed(clr_mask, bam_addr(bdev, 0, BAM_IRQ_CLR)); in bam_dma_irq()
893 pm_runtime_mark_last_busy(bdev->dev); in bam_dma_irq()
894 pm_runtime_put_autosuspend(bdev->dev); in bam_dma_irq()
958 struct bam_device *bdev = bchan->bdev; in bam_apply_new_config() local
961 if (!bdev->controlled_remotely) { in bam_apply_new_config()
968 bam_addr(bdev, 0, BAM_DESC_CNT_TRSHLD)); in bam_apply_new_config()
981 struct bam_device *bdev = bchan->bdev; in bam_start_dma() local
995 ret = bam_pm_runtime_get_sync(bdev->dev); in bam_start_dma()
1066 bam_addr(bdev, bchan->id, BAM_P_EVNT_REG)); in bam_start_dma()
1068 pm_runtime_mark_last_busy(bdev->dev); in bam_start_dma()
1069 pm_runtime_put_autosuspend(bdev->dev); in bam_start_dma()
1080 struct bam_device *bdev = (struct bam_device *)data; in dma_tasklet() local
1086 for (i = 0; i < bdev->num_channels; i++) { in dma_tasklet()
1087 bchan = &bdev->channels[i]; in dma_tasklet()
1133 struct bam_device *bdev = container_of(of->of_dma_data, in bam_dma_xlate() local
1141 if (request >= bdev->num_channels) in bam_dma_xlate()
1144 return dma_get_slave_channel(&(bdev->channels[request].vc.chan)); in bam_dma_xlate()
1153 static int bam_init(struct bam_device *bdev) in bam_init() argument
1158 if (!bdev->num_ees) { in bam_init()
1159 val = readl_relaxed(bam_addr(bdev, 0, BAM_REVISION)); in bam_init()
1160 bdev->num_ees = (val >> NUM_EES_SHIFT) & NUM_EES_MASK; in bam_init()
1164 if (bdev->ee >= bdev->num_ees) in bam_init()
1167 if (!bdev->num_channels) { in bam_init()
1168 val = readl_relaxed(bam_addr(bdev, 0, BAM_NUM_PIPES)); in bam_init()
1169 bdev->num_channels = val & BAM_NUM_PIPES_MASK; in bam_init()
1172 if (bdev->controlled_remotely) in bam_init()
1177 val = readl_relaxed(bam_addr(bdev, 0, BAM_CTRL)); in bam_init()
1179 writel_relaxed(val, bam_addr(bdev, 0, BAM_CTRL)); in bam_init()
1181 writel_relaxed(val, bam_addr(bdev, 0, BAM_CTRL)); in bam_init()
1188 writel_relaxed(val, bam_addr(bdev, 0, BAM_CTRL)); in bam_init()
1192 bam_addr(bdev, 0, BAM_DESC_CNT_TRSHLD)); in bam_init()
1195 writel_relaxed(BAM_CNFG_BITS_DEFAULT, bam_addr(bdev, 0, BAM_CNFG_BITS)); in bam_init()
1199 bam_addr(bdev, 0, BAM_IRQ_EN)); in bam_init()
1202 writel_relaxed(BAM_IRQ_MSK, bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_init()
1207 static void bam_channel_init(struct bam_device *bdev, struct bam_chan *bchan, in bam_channel_init() argument
1211 bchan->bdev = bdev; in bam_channel_init()
1213 vchan_init(&bchan->vc, &bdev->common); in bam_channel_init()
1229 struct bam_device *bdev; in bam_dma_probe() local
1234 bdev = devm_kzalloc(&pdev->dev, sizeof(*bdev), GFP_KERNEL); in bam_dma_probe()
1235 if (!bdev) in bam_dma_probe()
1238 bdev->dev = &pdev->dev; in bam_dma_probe()
1246 bdev->layout = match->data; in bam_dma_probe()
1249 bdev->regs = devm_ioremap_resource(&pdev->dev, iores); in bam_dma_probe()
1250 if (IS_ERR(bdev->regs)) in bam_dma_probe()
1251 return PTR_ERR(bdev->regs); in bam_dma_probe()
1253 bdev->irq = platform_get_irq(pdev, 0); in bam_dma_probe()
1254 if (bdev->irq < 0) in bam_dma_probe()
1255 return bdev->irq; in bam_dma_probe()
1257 ret = of_property_read_u32(pdev->dev.of_node, "qcom,ee", &bdev->ee); in bam_dma_probe()
1259 dev_err(bdev->dev, "Execution environment unspecified\n"); in bam_dma_probe()
1263 bdev->controlled_remotely = of_property_read_bool(pdev->dev.of_node, in bam_dma_probe()
1266 if (bdev->controlled_remotely) { in bam_dma_probe()
1268 &bdev->num_channels); in bam_dma_probe()
1270 dev_err(bdev->dev, "num-channels unspecified in dt\n"); in bam_dma_probe()
1273 &bdev->num_ees); in bam_dma_probe()
1275 dev_err(bdev->dev, "num-ees unspecified in dt\n"); in bam_dma_probe()
1278 bdev->bamclk = devm_clk_get(bdev->dev, "bam_clk"); in bam_dma_probe()
1279 if (IS_ERR(bdev->bamclk)) { in bam_dma_probe()
1280 if (!bdev->controlled_remotely) in bam_dma_probe()
1281 return PTR_ERR(bdev->bamclk); in bam_dma_probe()
1283 bdev->bamclk = NULL; in bam_dma_probe()
1286 ret = clk_prepare_enable(bdev->bamclk); in bam_dma_probe()
1288 dev_err(bdev->dev, "failed to prepare/enable clock\n"); in bam_dma_probe()
1292 ret = bam_init(bdev); in bam_dma_probe()
1296 tasklet_init(&bdev->task, dma_tasklet, (unsigned long)bdev); in bam_dma_probe()
1298 bdev->channels = devm_kcalloc(bdev->dev, bdev->num_channels, in bam_dma_probe()
1299 sizeof(*bdev->channels), GFP_KERNEL); in bam_dma_probe()
1301 if (!bdev->channels) { in bam_dma_probe()
1307 INIT_LIST_HEAD(&bdev->common.channels); in bam_dma_probe()
1309 for (i = 0; i < bdev->num_channels; i++) in bam_dma_probe()
1310 bam_channel_init(bdev, &bdev->channels[i], i); in bam_dma_probe()
1312 ret = devm_request_irq(bdev->dev, bdev->irq, bam_dma_irq, in bam_dma_probe()
1313 IRQF_TRIGGER_HIGH, "bam_dma", bdev); in bam_dma_probe()
1318 bdev->common.dev = bdev->dev; in bam_dma_probe()
1319 bdev->common.dev->dma_parms = &bdev->dma_parms; in bam_dma_probe()
1320 ret = dma_set_max_seg_size(bdev->common.dev, BAM_FIFO_SIZE); in bam_dma_probe()
1322 dev_err(bdev->dev, "cannot set maximum segment size\n"); in bam_dma_probe()
1326 platform_set_drvdata(pdev, bdev); in bam_dma_probe()
1329 dma_cap_zero(bdev->common.cap_mask); in bam_dma_probe()
1330 dma_cap_set(DMA_SLAVE, bdev->common.cap_mask); in bam_dma_probe()
1333 bdev->common.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); in bam_dma_probe()
1334 bdev->common.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT; in bam_dma_probe()
1335 bdev->common.src_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES; in bam_dma_probe()
1336 bdev->common.dst_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES; in bam_dma_probe()
1337 bdev->common.device_alloc_chan_resources = bam_alloc_chan; in bam_dma_probe()
1338 bdev->common.device_free_chan_resources = bam_free_chan; in bam_dma_probe()
1339 bdev->common.device_prep_slave_sg = bam_prep_slave_sg; in bam_dma_probe()
1340 bdev->common.device_config = bam_slave_config; in bam_dma_probe()
1341 bdev->common.device_pause = bam_pause; in bam_dma_probe()
1342 bdev->common.device_resume = bam_resume; in bam_dma_probe()
1343 bdev->common.device_terminate_all = bam_dma_terminate_all; in bam_dma_probe()
1344 bdev->common.device_issue_pending = bam_issue_pending; in bam_dma_probe()
1345 bdev->common.device_tx_status = bam_tx_status; in bam_dma_probe()
1346 bdev->common.dev = bdev->dev; in bam_dma_probe()
1348 ret = dma_async_device_register(&bdev->common); in bam_dma_probe()
1350 dev_err(bdev->dev, "failed to register dma async device\n"); in bam_dma_probe()
1355 &bdev->common); in bam_dma_probe()
1359 if (bdev->controlled_remotely) { in bam_dma_probe()
1374 dma_async_device_unregister(&bdev->common); in bam_dma_probe()
1376 for (i = 0; i < bdev->num_channels; i++) in bam_dma_probe()
1377 tasklet_kill(&bdev->channels[i].vc.task); in bam_dma_probe()
1379 tasklet_kill(&bdev->task); in bam_dma_probe()
1381 clk_disable_unprepare(bdev->bamclk); in bam_dma_probe()
1388 struct bam_device *bdev = platform_get_drvdata(pdev); in bam_dma_remove() local
1394 dma_async_device_unregister(&bdev->common); in bam_dma_remove()
1397 writel_relaxed(0, bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_dma_remove()
1399 devm_free_irq(bdev->dev, bdev->irq, bdev); in bam_dma_remove()
1401 for (i = 0; i < bdev->num_channels; i++) { in bam_dma_remove()
1402 bam_dma_terminate_all(&bdev->channels[i].vc.chan); in bam_dma_remove()
1403 tasklet_kill(&bdev->channels[i].vc.task); in bam_dma_remove()
1405 if (!bdev->channels[i].fifo_virt) in bam_dma_remove()
1408 dma_free_wc(bdev->dev, BAM_DESC_FIFO_SIZE, in bam_dma_remove()
1409 bdev->channels[i].fifo_virt, in bam_dma_remove()
1410 bdev->channels[i].fifo_phys); in bam_dma_remove()
1413 tasklet_kill(&bdev->task); in bam_dma_remove()
1415 clk_disable_unprepare(bdev->bamclk); in bam_dma_remove()
1422 struct bam_device *bdev = dev_get_drvdata(dev); in bam_dma_runtime_suspend() local
1424 clk_disable(bdev->bamclk); in bam_dma_runtime_suspend()
1431 struct bam_device *bdev = dev_get_drvdata(dev); in bam_dma_runtime_resume() local
1434 ret = clk_enable(bdev->bamclk); in bam_dma_runtime_resume()
1445 struct bam_device *bdev = dev_get_drvdata(dev); in bam_dma_suspend() local
1447 if (!bdev->controlled_remotely) in bam_dma_suspend()
1450 clk_unprepare(bdev->bamclk); in bam_dma_suspend()
1457 struct bam_device *bdev = dev_get_drvdata(dev); in bam_dma_resume() local
1460 ret = clk_prepare(bdev->bamclk); in bam_dma_resume()
1464 if (!bdev->controlled_remotely) in bam_dma_resume()