Lines Matching refs:bdev
350 struct bam_device *bdev; member
407 static inline void __iomem *bam_addr(struct bam_device *bdev, u32 pipe, in bam_addr() argument
410 const struct reg_offset_data r = bdev->layout[reg]; in bam_addr()
412 return bdev->regs + r.base_offset + in bam_addr()
415 r.ee_mult * bdev->ee; in bam_addr()
426 struct bam_device *bdev = bchan->bdev; in bam_reset_channel() local
431 writel_relaxed(1, bam_addr(bdev, bchan->id, BAM_P_RST)); in bam_reset_channel()
432 writel_relaxed(0, bam_addr(bdev, bchan->id, BAM_P_RST)); in bam_reset_channel()
451 struct bam_device *bdev = bchan->bdev; in bam_chan_init_hw() local
462 bam_addr(bdev, bchan->id, BAM_P_DESC_FIFO_ADDR)); in bam_chan_init_hw()
464 bam_addr(bdev, bchan->id, BAM_P_FIFO_SIZES)); in bam_chan_init_hw()
468 bam_addr(bdev, bchan->id, BAM_P_IRQ_EN)); in bam_chan_init_hw()
471 val = readl_relaxed(bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_chan_init_hw()
473 writel_relaxed(val, bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_chan_init_hw()
483 writel_relaxed(val, bam_addr(bdev, bchan->id, BAM_P_CTRL)); in bam_chan_init_hw()
501 struct bam_device *bdev = bchan->bdev; in bam_alloc_chan() local
507 bchan->fifo_virt = dma_alloc_wc(bdev->dev, BAM_DESC_FIFO_SIZE, in bam_alloc_chan()
511 dev_err(bdev->dev, "Failed to allocate desc fifo\n"); in bam_alloc_chan()
536 struct bam_device *bdev = bchan->bdev; in bam_free_chan() local
541 ret = bam_pm_runtime_get_sync(bdev->dev); in bam_free_chan()
548 dev_err(bchan->bdev->dev, "Cannot free busy channel\n"); in bam_free_chan()
556 dma_free_wc(bdev->dev, BAM_DESC_FIFO_SIZE, bchan->fifo_virt, in bam_free_chan()
561 val = readl_relaxed(bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_free_chan()
563 writel_relaxed(val, bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_free_chan()
566 writel_relaxed(0, bam_addr(bdev, bchan->id, BAM_P_IRQ_EN)); in bam_free_chan()
569 pm_runtime_mark_last_busy(bdev->dev); in bam_free_chan()
570 pm_runtime_put_autosuspend(bdev->dev); in bam_free_chan()
611 struct bam_device *bdev = bchan->bdev; in bam_prep_slave_sg() local
620 dev_err(bdev->dev, "invalid dma direction\n"); in bam_prep_slave_sg()
737 struct bam_device *bdev = bchan->bdev; in bam_pause() local
741 ret = bam_pm_runtime_get_sync(bdev->dev); in bam_pause()
746 writel_relaxed(1, bam_addr(bdev, bchan->id, BAM_P_HALT)); in bam_pause()
749 pm_runtime_mark_last_busy(bdev->dev); in bam_pause()
750 pm_runtime_put_autosuspend(bdev->dev); in bam_pause()
763 struct bam_device *bdev = bchan->bdev; in bam_resume() local
767 ret = bam_pm_runtime_get_sync(bdev->dev); in bam_resume()
772 writel_relaxed(0, bam_addr(bdev, bchan->id, BAM_P_HALT)); in bam_resume()
775 pm_runtime_mark_last_busy(bdev->dev); in bam_resume()
776 pm_runtime_put_autosuspend(bdev->dev); in bam_resume()
788 static u32 process_channel_irqs(struct bam_device *bdev) in process_channel_irqs() argument
794 srcs = readl_relaxed(bam_addr(bdev, 0, BAM_IRQ_SRCS_EE)); in process_channel_irqs()
800 for (i = 0; i < bdev->num_channels; i++) { in process_channel_irqs()
801 struct bam_chan *bchan = &bdev->channels[i]; in process_channel_irqs()
807 pipe_stts = readl_relaxed(bam_addr(bdev, i, BAM_P_IRQ_STTS)); in process_channel_irqs()
809 writel_relaxed(pipe_stts, bam_addr(bdev, i, BAM_P_IRQ_CLR)); in process_channel_irqs()
813 offset = readl_relaxed(bam_addr(bdev, i, BAM_P_SW_OFSTS)) & in process_channel_irqs()
866 struct bam_device *bdev = data; in bam_dma_irq() local
870 srcs |= process_channel_irqs(bdev); in bam_dma_irq()
874 tasklet_schedule(&bdev->task); in bam_dma_irq()
876 ret = bam_pm_runtime_get_sync(bdev->dev); in bam_dma_irq()
881 clr_mask = readl_relaxed(bam_addr(bdev, 0, BAM_IRQ_STTS)); in bam_dma_irq()
889 writel_relaxed(clr_mask, bam_addr(bdev, 0, BAM_IRQ_CLR)); in bam_dma_irq()
892 pm_runtime_mark_last_busy(bdev->dev); in bam_dma_irq()
893 pm_runtime_put_autosuspend(bdev->dev); in bam_dma_irq()
957 struct bam_device *bdev = bchan->bdev; in bam_apply_new_config() local
960 if (!bdev->controlled_remotely) { in bam_apply_new_config()
967 bam_addr(bdev, 0, BAM_DESC_CNT_TRSHLD)); in bam_apply_new_config()
980 struct bam_device *bdev = bchan->bdev; in bam_start_dma() local
994 ret = bam_pm_runtime_get_sync(bdev->dev); in bam_start_dma()
1065 bam_addr(bdev, bchan->id, BAM_P_EVNT_REG)); in bam_start_dma()
1067 pm_runtime_mark_last_busy(bdev->dev); in bam_start_dma()
1068 pm_runtime_put_autosuspend(bdev->dev); in bam_start_dma()
1079 struct bam_device *bdev = from_tasklet(bdev, t, task); in dma_tasklet() local
1085 for (i = 0; i < bdev->num_channels; i++) { in dma_tasklet()
1086 bchan = &bdev->channels[i]; in dma_tasklet()
1132 struct bam_device *bdev = container_of(of->of_dma_data, in bam_dma_xlate() local
1140 if (request >= bdev->num_channels) in bam_dma_xlate()
1143 return dma_get_slave_channel(&(bdev->channels[request].vc.chan)); in bam_dma_xlate()
1152 static int bam_init(struct bam_device *bdev) in bam_init() argument
1157 if (!bdev->num_ees) { in bam_init()
1158 val = readl_relaxed(bam_addr(bdev, 0, BAM_REVISION)); in bam_init()
1159 bdev->num_ees = (val >> NUM_EES_SHIFT) & NUM_EES_MASK; in bam_init()
1163 if (bdev->ee >= bdev->num_ees) in bam_init()
1166 if (!bdev->num_channels) { in bam_init()
1167 val = readl_relaxed(bam_addr(bdev, 0, BAM_NUM_PIPES)); in bam_init()
1168 bdev->num_channels = val & BAM_NUM_PIPES_MASK; in bam_init()
1171 if (bdev->controlled_remotely) in bam_init()
1176 val = readl_relaxed(bam_addr(bdev, 0, BAM_CTRL)); in bam_init()
1178 writel_relaxed(val, bam_addr(bdev, 0, BAM_CTRL)); in bam_init()
1180 writel_relaxed(val, bam_addr(bdev, 0, BAM_CTRL)); in bam_init()
1187 writel_relaxed(val, bam_addr(bdev, 0, BAM_CTRL)); in bam_init()
1191 bam_addr(bdev, 0, BAM_DESC_CNT_TRSHLD)); in bam_init()
1194 writel_relaxed(BAM_CNFG_BITS_DEFAULT, bam_addr(bdev, 0, BAM_CNFG_BITS)); in bam_init()
1198 bam_addr(bdev, 0, BAM_IRQ_EN)); in bam_init()
1201 writel_relaxed(BAM_IRQ_MSK, bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_init()
1206 static void bam_channel_init(struct bam_device *bdev, struct bam_chan *bchan, in bam_channel_init() argument
1210 bchan->bdev = bdev; in bam_channel_init()
1212 vchan_init(&bchan->vc, &bdev->common); in bam_channel_init()
1228 struct bam_device *bdev; in bam_dma_probe() local
1233 bdev = devm_kzalloc(&pdev->dev, sizeof(*bdev), GFP_KERNEL); in bam_dma_probe()
1234 if (!bdev) in bam_dma_probe()
1237 bdev->dev = &pdev->dev; in bam_dma_probe()
1245 bdev->layout = match->data; in bam_dma_probe()
1248 bdev->regs = devm_ioremap_resource(&pdev->dev, iores); in bam_dma_probe()
1249 if (IS_ERR(bdev->regs)) in bam_dma_probe()
1250 return PTR_ERR(bdev->regs); in bam_dma_probe()
1252 bdev->irq = platform_get_irq(pdev, 0); in bam_dma_probe()
1253 if (bdev->irq < 0) in bam_dma_probe()
1254 return bdev->irq; in bam_dma_probe()
1256 ret = of_property_read_u32(pdev->dev.of_node, "qcom,ee", &bdev->ee); in bam_dma_probe()
1258 dev_err(bdev->dev, "Execution environment unspecified\n"); in bam_dma_probe()
1262 bdev->controlled_remotely = of_property_read_bool(pdev->dev.of_node, in bam_dma_probe()
1265 if (bdev->controlled_remotely) { in bam_dma_probe()
1267 &bdev->num_channels); in bam_dma_probe()
1269 dev_err(bdev->dev, "num-channels unspecified in dt\n"); in bam_dma_probe()
1272 &bdev->num_ees); in bam_dma_probe()
1274 dev_err(bdev->dev, "num-ees unspecified in dt\n"); in bam_dma_probe()
1277 bdev->bamclk = devm_clk_get(bdev->dev, "bam_clk"); in bam_dma_probe()
1278 if (IS_ERR(bdev->bamclk)) { in bam_dma_probe()
1279 if (!bdev->controlled_remotely) in bam_dma_probe()
1280 return PTR_ERR(bdev->bamclk); in bam_dma_probe()
1282 bdev->bamclk = NULL; in bam_dma_probe()
1285 ret = clk_prepare_enable(bdev->bamclk); in bam_dma_probe()
1287 dev_err(bdev->dev, "failed to prepare/enable clock\n"); in bam_dma_probe()
1291 ret = bam_init(bdev); in bam_dma_probe()
1295 tasklet_setup(&bdev->task, dma_tasklet); in bam_dma_probe()
1297 bdev->channels = devm_kcalloc(bdev->dev, bdev->num_channels, in bam_dma_probe()
1298 sizeof(*bdev->channels), GFP_KERNEL); in bam_dma_probe()
1300 if (!bdev->channels) { in bam_dma_probe()
1306 INIT_LIST_HEAD(&bdev->common.channels); in bam_dma_probe()
1308 for (i = 0; i < bdev->num_channels; i++) in bam_dma_probe()
1309 bam_channel_init(bdev, &bdev->channels[i], i); in bam_dma_probe()
1311 ret = devm_request_irq(bdev->dev, bdev->irq, bam_dma_irq, in bam_dma_probe()
1312 IRQF_TRIGGER_HIGH, "bam_dma", bdev); in bam_dma_probe()
1317 bdev->common.dev = bdev->dev; in bam_dma_probe()
1318 ret = dma_set_max_seg_size(bdev->common.dev, BAM_FIFO_SIZE); in bam_dma_probe()
1320 dev_err(bdev->dev, "cannot set maximum segment size\n"); in bam_dma_probe()
1324 platform_set_drvdata(pdev, bdev); in bam_dma_probe()
1327 dma_cap_zero(bdev->common.cap_mask); in bam_dma_probe()
1328 dma_cap_set(DMA_SLAVE, bdev->common.cap_mask); in bam_dma_probe()
1331 bdev->common.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); in bam_dma_probe()
1332 bdev->common.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT; in bam_dma_probe()
1333 bdev->common.src_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES; in bam_dma_probe()
1334 bdev->common.dst_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES; in bam_dma_probe()
1335 bdev->common.device_alloc_chan_resources = bam_alloc_chan; in bam_dma_probe()
1336 bdev->common.device_free_chan_resources = bam_free_chan; in bam_dma_probe()
1337 bdev->common.device_prep_slave_sg = bam_prep_slave_sg; in bam_dma_probe()
1338 bdev->common.device_config = bam_slave_config; in bam_dma_probe()
1339 bdev->common.device_pause = bam_pause; in bam_dma_probe()
1340 bdev->common.device_resume = bam_resume; in bam_dma_probe()
1341 bdev->common.device_terminate_all = bam_dma_terminate_all; in bam_dma_probe()
1342 bdev->common.device_issue_pending = bam_issue_pending; in bam_dma_probe()
1343 bdev->common.device_tx_status = bam_tx_status; in bam_dma_probe()
1344 bdev->common.dev = bdev->dev; in bam_dma_probe()
1346 ret = dma_async_device_register(&bdev->common); in bam_dma_probe()
1348 dev_err(bdev->dev, "failed to register dma async device\n"); in bam_dma_probe()
1353 &bdev->common); in bam_dma_probe()
1357 if (bdev->controlled_remotely) { in bam_dma_probe()
1372 dma_async_device_unregister(&bdev->common); in bam_dma_probe()
1374 for (i = 0; i < bdev->num_channels; i++) in bam_dma_probe()
1375 tasklet_kill(&bdev->channels[i].vc.task); in bam_dma_probe()
1377 tasklet_kill(&bdev->task); in bam_dma_probe()
1379 clk_disable_unprepare(bdev->bamclk); in bam_dma_probe()
1386 struct bam_device *bdev = platform_get_drvdata(pdev); in bam_dma_remove() local
1392 dma_async_device_unregister(&bdev->common); in bam_dma_remove()
1395 writel_relaxed(0, bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_dma_remove()
1397 devm_free_irq(bdev->dev, bdev->irq, bdev); in bam_dma_remove()
1399 for (i = 0; i < bdev->num_channels; i++) { in bam_dma_remove()
1400 bam_dma_terminate_all(&bdev->channels[i].vc.chan); in bam_dma_remove()
1401 tasklet_kill(&bdev->channels[i].vc.task); in bam_dma_remove()
1403 if (!bdev->channels[i].fifo_virt) in bam_dma_remove()
1406 dma_free_wc(bdev->dev, BAM_DESC_FIFO_SIZE, in bam_dma_remove()
1407 bdev->channels[i].fifo_virt, in bam_dma_remove()
1408 bdev->channels[i].fifo_phys); in bam_dma_remove()
1411 tasklet_kill(&bdev->task); in bam_dma_remove()
1413 clk_disable_unprepare(bdev->bamclk); in bam_dma_remove()
1420 struct bam_device *bdev = dev_get_drvdata(dev); in bam_dma_runtime_suspend() local
1422 clk_disable(bdev->bamclk); in bam_dma_runtime_suspend()
1429 struct bam_device *bdev = dev_get_drvdata(dev); in bam_dma_runtime_resume() local
1432 ret = clk_enable(bdev->bamclk); in bam_dma_runtime_resume()
1443 struct bam_device *bdev = dev_get_drvdata(dev); in bam_dma_suspend() local
1445 if (!bdev->controlled_remotely) in bam_dma_suspend()
1448 clk_unprepare(bdev->bamclk); in bam_dma_suspend()
1455 struct bam_device *bdev = dev_get_drvdata(dev); in bam_dma_resume() local
1458 ret = clk_prepare(bdev->bamclk); in bam_dma_resume()
1462 if (!bdev->controlled_remotely) in bam_dma_resume()