Lines Matching refs:pdma
257 struct xgene_dma *pdma; member
313 struct xgene_dma *pdma; member
383 static bool is_pq_enabled(struct xgene_dma *pdma) in is_pq_enabled() argument
387 val = ioread32(pdma->csr_efuse + XGENE_SOC_JTAG1_SHADOW); in is_pq_enabled()
1280 struct xgene_dma *pdma = (struct xgene_dma *)id; in xgene_dma_err_isr() local
1284 val = ioread32(pdma->csr_dma + XGENE_DMA_INT); in xgene_dma_err_isr()
1287 iowrite32(val, pdma->csr_dma + XGENE_DMA_INT); in xgene_dma_err_isr()
1292 dev_err(pdma->dev, in xgene_dma_err_isr()
1302 iowrite32(ring->num, ring->pdma->csr_ring + XGENE_DMA_RING_STATE); in xgene_dma_wr_ring_state()
1305 iowrite32(ring->state[i], ring->pdma->csr_ring + in xgene_dma_wr_ring_state()
1350 ring->pdma->csr_ring + XGENE_DMA_RING_ID); in xgene_dma_setup_ring()
1354 ring->pdma->csr_ring + XGENE_DMA_RING_ID_BUF); in xgene_dma_setup_ring()
1366 val = ioread32(ring->pdma->csr_ring + XGENE_DMA_RING_NE_INT_MODE); in xgene_dma_setup_ring()
1368 iowrite32(val, ring->pdma->csr_ring + XGENE_DMA_RING_NE_INT_MODE); in xgene_dma_setup_ring()
1377 val = ioread32(ring->pdma->csr_ring + in xgene_dma_clear_ring()
1380 iowrite32(val, ring->pdma->csr_ring + in xgene_dma_clear_ring()
1386 iowrite32(ring_id, ring->pdma->csr_ring + XGENE_DMA_RING_ID); in xgene_dma_clear_ring()
1388 iowrite32(0, ring->pdma->csr_ring + XGENE_DMA_RING_ID_BUF); in xgene_dma_clear_ring()
1394 ring->cmd_base = ring->pdma->csr_ring_cmd + in xgene_dma_set_ring_cmd()
1437 dma_free_coherent(ring->pdma->dev, ring->size, in xgene_dma_delete_ring_one()
1454 ring->pdma = chan->pdma; in xgene_dma_create_ring_one()
1456 ring->num = chan->pdma->ring_num++; in xgene_dma_create_ring_one()
1519 static int xgene_dma_init_rings(struct xgene_dma *pdma) in xgene_dma_init_rings() argument
1524 ret = xgene_dma_create_chan_rings(&pdma->chan[i]); in xgene_dma_init_rings()
1527 xgene_dma_delete_chan_rings(&pdma->chan[j]); in xgene_dma_init_rings()
1535 static void xgene_dma_enable(struct xgene_dma *pdma) in xgene_dma_enable() argument
1540 val = ioread32(pdma->csr_dma + XGENE_DMA_GCR); in xgene_dma_enable()
1543 iowrite32(val, pdma->csr_dma + XGENE_DMA_GCR); in xgene_dma_enable()
1546 static void xgene_dma_disable(struct xgene_dma *pdma) in xgene_dma_disable() argument
1550 val = ioread32(pdma->csr_dma + XGENE_DMA_GCR); in xgene_dma_disable()
1552 iowrite32(val, pdma->csr_dma + XGENE_DMA_GCR); in xgene_dma_disable()
1555 static void xgene_dma_mask_interrupts(struct xgene_dma *pdma) in xgene_dma_mask_interrupts() argument
1562 pdma->csr_dma + XGENE_DMA_RING_INT0_MASK); in xgene_dma_mask_interrupts()
1564 pdma->csr_dma + XGENE_DMA_RING_INT1_MASK); in xgene_dma_mask_interrupts()
1566 pdma->csr_dma + XGENE_DMA_RING_INT2_MASK); in xgene_dma_mask_interrupts()
1568 pdma->csr_dma + XGENE_DMA_RING_INT3_MASK); in xgene_dma_mask_interrupts()
1570 pdma->csr_dma + XGENE_DMA_RING_INT4_MASK); in xgene_dma_mask_interrupts()
1573 iowrite32(XGENE_DMA_INT_ALL_MASK, pdma->csr_dma + XGENE_DMA_INT_MASK); in xgene_dma_mask_interrupts()
1576 static void xgene_dma_unmask_interrupts(struct xgene_dma *pdma) in xgene_dma_unmask_interrupts() argument
1583 pdma->csr_dma + XGENE_DMA_RING_INT0_MASK); in xgene_dma_unmask_interrupts()
1585 pdma->csr_dma + XGENE_DMA_RING_INT1_MASK); in xgene_dma_unmask_interrupts()
1587 pdma->csr_dma + XGENE_DMA_RING_INT2_MASK); in xgene_dma_unmask_interrupts()
1589 pdma->csr_dma + XGENE_DMA_RING_INT3_MASK); in xgene_dma_unmask_interrupts()
1591 pdma->csr_dma + XGENE_DMA_RING_INT4_MASK); in xgene_dma_unmask_interrupts()
1595 pdma->csr_dma + XGENE_DMA_INT_MASK); in xgene_dma_unmask_interrupts()
1598 static void xgene_dma_init_hw(struct xgene_dma *pdma) in xgene_dma_init_hw() argument
1604 pdma->csr_dma + XGENE_DMA_CFG_RING_WQ_ASSOC); in xgene_dma_init_hw()
1607 if (is_pq_enabled(pdma)) in xgene_dma_init_hw()
1609 pdma->csr_dma + XGENE_DMA_RAID6_CONT); in xgene_dma_init_hw()
1611 dev_info(pdma->dev, "PQ is disabled in HW\n"); in xgene_dma_init_hw()
1613 xgene_dma_enable(pdma); in xgene_dma_init_hw()
1614 xgene_dma_unmask_interrupts(pdma); in xgene_dma_init_hw()
1617 val = ioread32(pdma->csr_dma + XGENE_DMA_IPBRR); in xgene_dma_init_hw()
1620 dev_info(pdma->dev, in xgene_dma_init_hw()
1626 static int xgene_dma_init_ring_mngr(struct xgene_dma *pdma) in xgene_dma_init_ring_mngr() argument
1628 if (ioread32(pdma->csr_ring + XGENE_DMA_RING_CLKEN) && in xgene_dma_init_ring_mngr()
1629 (!ioread32(pdma->csr_ring + XGENE_DMA_RING_SRST))) in xgene_dma_init_ring_mngr()
1632 iowrite32(0x3, pdma->csr_ring + XGENE_DMA_RING_CLKEN); in xgene_dma_init_ring_mngr()
1633 iowrite32(0x0, pdma->csr_ring + XGENE_DMA_RING_SRST); in xgene_dma_init_ring_mngr()
1636 iowrite32(0x0, pdma->csr_ring + XGENE_DMA_RING_MEM_RAM_SHUTDOWN); in xgene_dma_init_ring_mngr()
1639 ioread32(pdma->csr_ring + XGENE_DMA_RING_MEM_RAM_SHUTDOWN); in xgene_dma_init_ring_mngr()
1644 if (ioread32(pdma->csr_ring + XGENE_DMA_RING_BLK_MEM_RDY) in xgene_dma_init_ring_mngr()
1646 dev_err(pdma->dev, in xgene_dma_init_ring_mngr()
1653 pdma->csr_ring + XGENE_DMA_RING_THRESLD0_SET1); in xgene_dma_init_ring_mngr()
1655 pdma->csr_ring + XGENE_DMA_RING_THRESLD1_SET1); in xgene_dma_init_ring_mngr()
1657 pdma->csr_ring + XGENE_DMA_RING_HYSTERESIS); in xgene_dma_init_ring_mngr()
1661 pdma->csr_ring + XGENE_DMA_RING_CONFIG); in xgene_dma_init_ring_mngr()
1666 static int xgene_dma_init_mem(struct xgene_dma *pdma) in xgene_dma_init_mem() argument
1670 ret = xgene_dma_init_ring_mngr(pdma); in xgene_dma_init_mem()
1675 iowrite32(0x0, pdma->csr_dma + XGENE_DMA_MEM_RAM_SHUTDOWN); in xgene_dma_init_mem()
1678 ioread32(pdma->csr_dma + XGENE_DMA_MEM_RAM_SHUTDOWN); in xgene_dma_init_mem()
1683 if (ioread32(pdma->csr_dma + XGENE_DMA_BLK_MEM_RDY) in xgene_dma_init_mem()
1685 dev_err(pdma->dev, in xgene_dma_init_mem()
1693 static int xgene_dma_request_irqs(struct xgene_dma *pdma) in xgene_dma_request_irqs() argument
1699 ret = devm_request_irq(pdma->dev, pdma->err_irq, xgene_dma_err_isr, in xgene_dma_request_irqs()
1700 0, "dma_error", pdma); in xgene_dma_request_irqs()
1702 dev_err(pdma->dev, in xgene_dma_request_irqs()
1703 "Failed to register error IRQ %d\n", pdma->err_irq); in xgene_dma_request_irqs()
1709 chan = &pdma->chan[i]; in xgene_dma_request_irqs()
1716 devm_free_irq(pdma->dev, pdma->err_irq, pdma); in xgene_dma_request_irqs()
1719 chan = &pdma->chan[i]; in xgene_dma_request_irqs()
1730 static void xgene_dma_free_irqs(struct xgene_dma *pdma) in xgene_dma_free_irqs() argument
1736 devm_free_irq(pdma->dev, pdma->err_irq, pdma); in xgene_dma_free_irqs()
1739 chan = &pdma->chan[i]; in xgene_dma_free_irqs()
1764 is_pq_enabled(chan->pdma)) { in xgene_dma_set_caps()
1768 !is_pq_enabled(chan->pdma)) { in xgene_dma_set_caps()
1794 static int xgene_dma_async_register(struct xgene_dma *pdma, int id) in xgene_dma_async_register() argument
1796 struct xgene_dma_chan *chan = &pdma->chan[id]; in xgene_dma_async_register()
1797 struct dma_device *dma_dev = &pdma->dma_dev[id]; in xgene_dma_async_register()
1830 dev_info(pdma->dev, in xgene_dma_async_register()
1840 static int xgene_dma_init_async(struct xgene_dma *pdma) in xgene_dma_init_async() argument
1845 ret = xgene_dma_async_register(pdma, i); in xgene_dma_init_async()
1848 dma_async_device_unregister(&pdma->dma_dev[j]); in xgene_dma_init_async()
1849 tasklet_kill(&pdma->chan[j].tasklet); in xgene_dma_init_async()
1859 static void xgene_dma_async_unregister(struct xgene_dma *pdma) in xgene_dma_async_unregister() argument
1864 dma_async_device_unregister(&pdma->dma_dev[i]); in xgene_dma_async_unregister()
1867 static void xgene_dma_init_channels(struct xgene_dma *pdma) in xgene_dma_init_channels() argument
1872 pdma->ring_num = XGENE_DMA_RING_NUM; in xgene_dma_init_channels()
1875 chan = &pdma->chan[i]; in xgene_dma_init_channels()
1876 chan->dev = pdma->dev; in xgene_dma_init_channels()
1877 chan->pdma = pdma; in xgene_dma_init_channels()
1884 struct xgene_dma *pdma) in xgene_dma_get_resources() argument
1896 pdma->csr_dma = devm_ioremap(&pdev->dev, res->start, in xgene_dma_get_resources()
1898 if (!pdma->csr_dma) { in xgene_dma_get_resources()
1910 pdma->csr_ring = devm_ioremap(&pdev->dev, res->start, in xgene_dma_get_resources()
1912 if (!pdma->csr_ring) { in xgene_dma_get_resources()
1924 pdma->csr_ring_cmd = devm_ioremap(&pdev->dev, res->start, in xgene_dma_get_resources()
1926 if (!pdma->csr_ring_cmd) { in xgene_dma_get_resources()
1938 pdma->csr_efuse = devm_ioremap(&pdev->dev, res->start, in xgene_dma_get_resources()
1940 if (!pdma->csr_efuse) { in xgene_dma_get_resources()
1952 pdma->err_irq = irq; in xgene_dma_get_resources()
1962 pdma->chan[i - 1].rx_irq = irq; in xgene_dma_get_resources()
1970 struct xgene_dma *pdma; in xgene_dma_probe() local
1973 pdma = devm_kzalloc(&pdev->dev, sizeof(*pdma), GFP_KERNEL); in xgene_dma_probe()
1974 if (!pdma) in xgene_dma_probe()
1977 pdma->dev = &pdev->dev; in xgene_dma_probe()
1978 platform_set_drvdata(pdev, pdma); in xgene_dma_probe()
1980 ret = xgene_dma_get_resources(pdev, pdma); in xgene_dma_probe()
1984 pdma->clk = devm_clk_get(&pdev->dev, NULL); in xgene_dma_probe()
1985 if (IS_ERR(pdma->clk)) { in xgene_dma_probe()
1987 return PTR_ERR(pdma->clk); in xgene_dma_probe()
1991 ret = clk_prepare_enable(pdma->clk); in xgene_dma_probe()
1998 ret = xgene_dma_init_mem(pdma); in xgene_dma_probe()
2009 xgene_dma_init_channels(pdma); in xgene_dma_probe()
2012 ret = xgene_dma_init_rings(pdma); in xgene_dma_probe()
2016 ret = xgene_dma_request_irqs(pdma); in xgene_dma_probe()
2021 xgene_dma_init_hw(pdma); in xgene_dma_probe()
2024 ret = xgene_dma_init_async(pdma); in xgene_dma_probe()
2031 xgene_dma_free_irqs(pdma); in xgene_dma_probe()
2035 xgene_dma_delete_chan_rings(&pdma->chan[i]); in xgene_dma_probe()
2039 clk_disable_unprepare(pdma->clk); in xgene_dma_probe()
2046 struct xgene_dma *pdma = platform_get_drvdata(pdev); in xgene_dma_remove() local
2050 xgene_dma_async_unregister(pdma); in xgene_dma_remove()
2053 xgene_dma_mask_interrupts(pdma); in xgene_dma_remove()
2054 xgene_dma_disable(pdma); in xgene_dma_remove()
2055 xgene_dma_free_irqs(pdma); in xgene_dma_remove()
2058 chan = &pdma->chan[i]; in xgene_dma_remove()
2063 clk_disable_unprepare(pdma->clk); in xgene_dma_remove()