Lines Matching refs:bdev
359 struct bam_device *bdev; member
417 static inline void __iomem *bam_addr(struct bam_device *bdev, u32 pipe, in bam_addr() argument
420 const struct reg_offset_data r = bdev->layout[reg]; in bam_addr()
422 return bdev->regs + r.base_offset + in bam_addr()
425 r.ee_mult * bdev->ee; in bam_addr()
436 struct bam_device *bdev = bchan->bdev; in bam_reset_channel() local
441 writel_relaxed(1, bam_addr(bdev, bchan->id, BAM_P_RST)); in bam_reset_channel()
442 writel_relaxed(0, bam_addr(bdev, bchan->id, BAM_P_RST)); in bam_reset_channel()
461 struct bam_device *bdev = bchan->bdev; in bam_chan_init_hw() local
472 bam_addr(bdev, bchan->id, BAM_P_DESC_FIFO_ADDR)); in bam_chan_init_hw()
474 bam_addr(bdev, bchan->id, BAM_P_FIFO_SIZES)); in bam_chan_init_hw()
478 bam_addr(bdev, bchan->id, BAM_P_IRQ_EN)); in bam_chan_init_hw()
481 val = readl_relaxed(bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_chan_init_hw()
483 writel_relaxed(val, bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_chan_init_hw()
493 writel_relaxed(val, bam_addr(bdev, bchan->id, BAM_P_CTRL)); in bam_chan_init_hw()
511 struct bam_device *bdev = bchan->bdev; in bam_alloc_chan() local
517 bchan->fifo_virt = dma_alloc_wc(bdev->dev, BAM_DESC_FIFO_SIZE, in bam_alloc_chan()
521 dev_err(bdev->dev, "Failed to allocate desc fifo\n"); in bam_alloc_chan()
546 struct bam_device *bdev = bchan->bdev; in bam_free_chan() local
551 ret = bam_pm_runtime_get_sync(bdev->dev); in bam_free_chan()
558 dev_err(bchan->bdev->dev, "Cannot free busy channel\n"); in bam_free_chan()
566 dma_free_wc(bdev->dev, BAM_DESC_FIFO_SIZE, bchan->fifo_virt, in bam_free_chan()
571 val = readl_relaxed(bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_free_chan()
573 writel_relaxed(val, bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_free_chan()
576 writel_relaxed(0, bam_addr(bdev, bchan->id, BAM_P_IRQ_EN)); in bam_free_chan()
579 pm_runtime_mark_last_busy(bdev->dev); in bam_free_chan()
580 pm_runtime_put_autosuspend(bdev->dev); in bam_free_chan()
621 struct bam_device *bdev = bchan->bdev; in bam_prep_slave_sg() local
630 dev_err(bdev->dev, "invalid dma direction\n"); in bam_prep_slave_sg()
728 struct bam_device *bdev = bchan->bdev; in bam_pause() local
732 ret = bam_pm_runtime_get_sync(bdev->dev); in bam_pause()
737 writel_relaxed(1, bam_addr(bdev, bchan->id, BAM_P_HALT)); in bam_pause()
740 pm_runtime_mark_last_busy(bdev->dev); in bam_pause()
741 pm_runtime_put_autosuspend(bdev->dev); in bam_pause()
754 struct bam_device *bdev = bchan->bdev; in bam_resume() local
758 ret = bam_pm_runtime_get_sync(bdev->dev); in bam_resume()
763 writel_relaxed(0, bam_addr(bdev, bchan->id, BAM_P_HALT)); in bam_resume()
766 pm_runtime_mark_last_busy(bdev->dev); in bam_resume()
767 pm_runtime_put_autosuspend(bdev->dev); in bam_resume()
779 static u32 process_channel_irqs(struct bam_device *bdev) in process_channel_irqs() argument
785 srcs = readl_relaxed(bam_addr(bdev, 0, BAM_IRQ_SRCS_EE)); in process_channel_irqs()
791 for (i = 0; i < bdev->num_channels; i++) { in process_channel_irqs()
792 struct bam_chan *bchan = &bdev->channels[i]; in process_channel_irqs()
798 pipe_stts = readl_relaxed(bam_addr(bdev, i, BAM_P_IRQ_STTS)); in process_channel_irqs()
800 writel_relaxed(pipe_stts, bam_addr(bdev, i, BAM_P_IRQ_CLR)); in process_channel_irqs()
804 offset = readl_relaxed(bam_addr(bdev, i, BAM_P_SW_OFSTS)) & in process_channel_irqs()
854 struct bam_device *bdev = data; in bam_dma_irq() local
858 srcs |= process_channel_irqs(bdev); in bam_dma_irq()
862 tasklet_schedule(&bdev->task); in bam_dma_irq()
864 ret = bam_pm_runtime_get_sync(bdev->dev); in bam_dma_irq()
869 clr_mask = readl_relaxed(bam_addr(bdev, 0, BAM_IRQ_STTS)); in bam_dma_irq()
877 writel_relaxed(clr_mask, bam_addr(bdev, 0, BAM_IRQ_CLR)); in bam_dma_irq()
880 pm_runtime_mark_last_busy(bdev->dev); in bam_dma_irq()
881 pm_runtime_put_autosuspend(bdev->dev); in bam_dma_irq()
945 struct bam_device *bdev = bchan->bdev; in bam_apply_new_config() local
948 if (!bdev->controlled_remotely) { in bam_apply_new_config()
955 bam_addr(bdev, 0, BAM_DESC_CNT_TRSHLD)); in bam_apply_new_config()
968 struct bam_device *bdev = bchan->bdev; in bam_start_dma() local
982 ret = bam_pm_runtime_get_sync(bdev->dev); in bam_start_dma()
1053 bam_addr(bdev, bchan->id, BAM_P_EVNT_REG)); in bam_start_dma()
1055 pm_runtime_mark_last_busy(bdev->dev); in bam_start_dma()
1056 pm_runtime_put_autosuspend(bdev->dev); in bam_start_dma()
1067 struct bam_device *bdev = (struct bam_device *)data; in dma_tasklet() local
1073 for (i = 0; i < bdev->num_channels; i++) { in dma_tasklet()
1074 bchan = &bdev->channels[i]; in dma_tasklet()
1120 struct bam_device *bdev = container_of(of->of_dma_data, in bam_dma_xlate() local
1128 if (request >= bdev->num_channels) in bam_dma_xlate()
1131 return dma_get_slave_channel(&(bdev->channels[request].vc.chan)); in bam_dma_xlate()
1140 static int bam_init(struct bam_device *bdev) in bam_init() argument
1145 if (!bdev->num_ees) { in bam_init()
1146 val = readl_relaxed(bam_addr(bdev, 0, BAM_REVISION)); in bam_init()
1147 bdev->num_ees = (val >> NUM_EES_SHIFT) & NUM_EES_MASK; in bam_init()
1151 if (bdev->ee >= bdev->num_ees) in bam_init()
1154 if (!bdev->num_channels) { in bam_init()
1155 val = readl_relaxed(bam_addr(bdev, 0, BAM_NUM_PIPES)); in bam_init()
1156 bdev->num_channels = val & BAM_NUM_PIPES_MASK; in bam_init()
1159 if (bdev->controlled_remotely) in bam_init()
1164 val = readl_relaxed(bam_addr(bdev, 0, BAM_CTRL)); in bam_init()
1166 writel_relaxed(val, bam_addr(bdev, 0, BAM_CTRL)); in bam_init()
1168 writel_relaxed(val, bam_addr(bdev, 0, BAM_CTRL)); in bam_init()
1175 writel_relaxed(val, bam_addr(bdev, 0, BAM_CTRL)); in bam_init()
1179 bam_addr(bdev, 0, BAM_DESC_CNT_TRSHLD)); in bam_init()
1182 writel_relaxed(BAM_CNFG_BITS_DEFAULT, bam_addr(bdev, 0, BAM_CNFG_BITS)); in bam_init()
1186 bam_addr(bdev, 0, BAM_IRQ_EN)); in bam_init()
1189 writel_relaxed(BAM_IRQ_MSK, bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_init()
1194 static void bam_channel_init(struct bam_device *bdev, struct bam_chan *bchan, in bam_channel_init() argument
1198 bchan->bdev = bdev; in bam_channel_init()
1200 vchan_init(&bchan->vc, &bdev->common); in bam_channel_init()
1216 struct bam_device *bdev; in bam_dma_probe() local
1221 bdev = devm_kzalloc(&pdev->dev, sizeof(*bdev), GFP_KERNEL); in bam_dma_probe()
1222 if (!bdev) in bam_dma_probe()
1225 bdev->dev = &pdev->dev; in bam_dma_probe()
1233 bdev->layout = match->data; in bam_dma_probe()
1236 bdev->regs = devm_ioremap_resource(&pdev->dev, iores); in bam_dma_probe()
1237 if (IS_ERR(bdev->regs)) in bam_dma_probe()
1238 return PTR_ERR(bdev->regs); in bam_dma_probe()
1240 bdev->irq = platform_get_irq(pdev, 0); in bam_dma_probe()
1241 if (bdev->irq < 0) in bam_dma_probe()
1242 return bdev->irq; in bam_dma_probe()
1244 ret = of_property_read_u32(pdev->dev.of_node, "qcom,ee", &bdev->ee); in bam_dma_probe()
1246 dev_err(bdev->dev, "Execution environment unspecified\n"); in bam_dma_probe()
1250 bdev->controlled_remotely = of_property_read_bool(pdev->dev.of_node, in bam_dma_probe()
1253 if (bdev->controlled_remotely) { in bam_dma_probe()
1255 &bdev->num_channels); in bam_dma_probe()
1257 dev_err(bdev->dev, "num-channels unspecified in dt\n"); in bam_dma_probe()
1260 &bdev->num_ees); in bam_dma_probe()
1262 dev_err(bdev->dev, "num-ees unspecified in dt\n"); in bam_dma_probe()
1265 bdev->bamclk = devm_clk_get(bdev->dev, "bam_clk"); in bam_dma_probe()
1266 if (IS_ERR(bdev->bamclk)) { in bam_dma_probe()
1267 if (!bdev->controlled_remotely) in bam_dma_probe()
1268 return PTR_ERR(bdev->bamclk); in bam_dma_probe()
1270 bdev->bamclk = NULL; in bam_dma_probe()
1273 ret = clk_prepare_enable(bdev->bamclk); in bam_dma_probe()
1275 dev_err(bdev->dev, "failed to prepare/enable clock\n"); in bam_dma_probe()
1279 ret = bam_init(bdev); in bam_dma_probe()
1283 tasklet_init(&bdev->task, dma_tasklet, (unsigned long)bdev); in bam_dma_probe()
1285 bdev->channels = devm_kcalloc(bdev->dev, bdev->num_channels, in bam_dma_probe()
1286 sizeof(*bdev->channels), GFP_KERNEL); in bam_dma_probe()
1288 if (!bdev->channels) { in bam_dma_probe()
1294 INIT_LIST_HEAD(&bdev->common.channels); in bam_dma_probe()
1296 for (i = 0; i < bdev->num_channels; i++) in bam_dma_probe()
1297 bam_channel_init(bdev, &bdev->channels[i], i); in bam_dma_probe()
1299 ret = devm_request_irq(bdev->dev, bdev->irq, bam_dma_irq, in bam_dma_probe()
1300 IRQF_TRIGGER_HIGH, "bam_dma", bdev); in bam_dma_probe()
1305 bdev->common.dev = bdev->dev; in bam_dma_probe()
1306 bdev->common.dev->dma_parms = &bdev->dma_parms; in bam_dma_probe()
1307 ret = dma_set_max_seg_size(bdev->common.dev, BAM_FIFO_SIZE); in bam_dma_probe()
1309 dev_err(bdev->dev, "cannot set maximum segment size\n"); in bam_dma_probe()
1313 platform_set_drvdata(pdev, bdev); in bam_dma_probe()
1316 dma_cap_zero(bdev->common.cap_mask); in bam_dma_probe()
1317 dma_cap_set(DMA_SLAVE, bdev->common.cap_mask); in bam_dma_probe()
1320 bdev->common.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); in bam_dma_probe()
1321 bdev->common.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT; in bam_dma_probe()
1322 bdev->common.src_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES; in bam_dma_probe()
1323 bdev->common.dst_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES; in bam_dma_probe()
1324 bdev->common.device_alloc_chan_resources = bam_alloc_chan; in bam_dma_probe()
1325 bdev->common.device_free_chan_resources = bam_free_chan; in bam_dma_probe()
1326 bdev->common.device_prep_slave_sg = bam_prep_slave_sg; in bam_dma_probe()
1327 bdev->common.device_config = bam_slave_config; in bam_dma_probe()
1328 bdev->common.device_pause = bam_pause; in bam_dma_probe()
1329 bdev->common.device_resume = bam_resume; in bam_dma_probe()
1330 bdev->common.device_terminate_all = bam_dma_terminate_all; in bam_dma_probe()
1331 bdev->common.device_issue_pending = bam_issue_pending; in bam_dma_probe()
1332 bdev->common.device_tx_status = bam_tx_status; in bam_dma_probe()
1333 bdev->common.dev = bdev->dev; in bam_dma_probe()
1335 ret = dma_async_device_register(&bdev->common); in bam_dma_probe()
1337 dev_err(bdev->dev, "failed to register dma async device\n"); in bam_dma_probe()
1342 &bdev->common); in bam_dma_probe()
1346 if (bdev->controlled_remotely) { in bam_dma_probe()
1361 dma_async_device_unregister(&bdev->common); in bam_dma_probe()
1363 for (i = 0; i < bdev->num_channels; i++) in bam_dma_probe()
1364 tasklet_kill(&bdev->channels[i].vc.task); in bam_dma_probe()
1366 tasklet_kill(&bdev->task); in bam_dma_probe()
1368 clk_disable_unprepare(bdev->bamclk); in bam_dma_probe()
1375 struct bam_device *bdev = platform_get_drvdata(pdev); in bam_dma_remove() local
1381 dma_async_device_unregister(&bdev->common); in bam_dma_remove()
1384 writel_relaxed(0, bam_addr(bdev, 0, BAM_IRQ_SRCS_MSK_EE)); in bam_dma_remove()
1386 devm_free_irq(bdev->dev, bdev->irq, bdev); in bam_dma_remove()
1388 for (i = 0; i < bdev->num_channels; i++) { in bam_dma_remove()
1389 bam_dma_terminate_all(&bdev->channels[i].vc.chan); in bam_dma_remove()
1390 tasklet_kill(&bdev->channels[i].vc.task); in bam_dma_remove()
1392 if (!bdev->channels[i].fifo_virt) in bam_dma_remove()
1395 dma_free_wc(bdev->dev, BAM_DESC_FIFO_SIZE, in bam_dma_remove()
1396 bdev->channels[i].fifo_virt, in bam_dma_remove()
1397 bdev->channels[i].fifo_phys); in bam_dma_remove()
1400 tasklet_kill(&bdev->task); in bam_dma_remove()
1402 clk_disable_unprepare(bdev->bamclk); in bam_dma_remove()
1409 struct bam_device *bdev = dev_get_drvdata(dev); in bam_dma_runtime_suspend() local
1411 clk_disable(bdev->bamclk); in bam_dma_runtime_suspend()
1418 struct bam_device *bdev = dev_get_drvdata(dev); in bam_dma_runtime_resume() local
1421 ret = clk_enable(bdev->bamclk); in bam_dma_runtime_resume()
1432 struct bam_device *bdev = dev_get_drvdata(dev); in bam_dma_suspend() local
1434 if (!bdev->controlled_remotely) in bam_dma_suspend()
1437 clk_unprepare(bdev->bamclk); in bam_dma_suspend()
1444 struct bam_device *bdev = dev_get_drvdata(dev); in bam_dma_resume() local
1447 ret = clk_prepare(bdev->bamclk); in bam_dma_resume()
1451 if (!bdev->controlled_remotely) in bam_dma_resume()