415 	struct xilinx_dma_device *xdev;  member
522 	readl_poll_timeout_atomic(chan->xdev->regs + chan->ctrl_offset + reg, \
528 	return ioread32(chan->xdev->regs + reg);  in dma_read()
533 	iowrite32(value, chan->xdev->regs + reg);  in dma_write()
580 	writel(value_lsb, chan->xdev->regs + chan->desc_offset + reg);  in vdma_desc_write_64()
583 	writel(value_msb, chan->xdev->regs + chan->desc_offset + reg + 4);  in vdma_desc_write_64()
588 	lo_hi_writeq(value, chan->xdev->regs + chan->ctrl_offset + reg);  in dma_writeq()
831 	if (chan->xdev->dma_config->dmatype == XDMA_TYPE_VDMA) {  in xilinx_dma_free_tx_descriptor()
836 	} else if (chan->xdev->dma_config->dmatype == XDMA_TYPE_CDMA) {  in xilinx_dma_free_tx_descriptor()
842 	} else if (chan->xdev->dma_config->dmatype == XDMA_TYPE_AXIDMA) {  in xilinx_dma_free_tx_descriptor()
907 	if (chan->xdev->dma_config->dmatype == XDMA_TYPE_AXIDMA) {  in xilinx_dma_free_chan_resources()
922 	if (chan->xdev->dma_config->dmatype == XDMA_TYPE_AXIMCDMA) {  in xilinx_dma_free_chan_resources()
933 	if (chan->xdev->dma_config->dmatype != XDMA_TYPE_AXIDMA &&  in xilinx_dma_free_chan_resources()
934 	    chan->xdev->dma_config->dmatype != XDMA_TYPE_AXIMCDMA) {  in xilinx_dma_free_chan_resources()
961 		if (chan->xdev->dma_config->dmatype == XDMA_TYPE_CDMA) {  in xilinx_dma_get_residue()
967 				   chan->xdev->max_buffer_len;  in xilinx_dma_get_residue()
968 		} else if (chan->xdev->dma_config->dmatype ==  in xilinx_dma_get_residue()
975 				   chan->xdev->max_buffer_len;  in xilinx_dma_get_residue()
984 				chan->xdev->max_buffer_len;  in xilinx_dma_get_residue()
1096 	if (chan->xdev->dma_config->dmatype == XDMA_TYPE_AXIDMA) {  in xilinx_dma_alloc_chan_resources()
1139 	} else if (chan->xdev->dma_config->dmatype == XDMA_TYPE_AXIMCDMA) {  in xilinx_dma_alloc_chan_resources()
1163 	} else if (chan->xdev->dma_config->dmatype == XDMA_TYPE_CDMA) {  in xilinx_dma_alloc_chan_resources()
1178 	    ((chan->xdev->dma_config->dmatype != XDMA_TYPE_AXIDMA) &&  in xilinx_dma_alloc_chan_resources()
1179 		chan->xdev->dma_config->dmatype != XDMA_TYPE_AXIMCDMA)) {  in xilinx_dma_alloc_chan_resources()
1188 	if (chan->xdev->dma_config->dmatype == XDMA_TYPE_AXIDMA) {  in xilinx_dma_alloc_chan_resources()
1196 	if ((chan->xdev->dma_config->dmatype == XDMA_TYPE_CDMA) && chan->has_sg)  in xilinx_dma_alloc_chan_resources()
1217 		     chan->xdev->max_buffer_len);  in xilinx_dma_calc_copysize()
1220 	    chan->xdev->common.copy_align) {  in xilinx_dma_calc_copysize()
1226 				 (1 << chan->xdev->common.copy_align));  in xilinx_dma_calc_copysize()
1261 		if (chan->has_sg && chan->xdev->dma_config->dmatype != XDMA_TYPE_VDMA)  in xilinx_dma_tx_status()
1494 				hw->control & chan->xdev->max_buffer_len);  in xilinx_cdma_start_transfer()
1568 			       hw->control & chan->xdev->max_buffer_len);  in xilinx_dma_start_transfer()
1686 		if (chan->has_sg && chan->xdev->dma_config->dmatype !=  in xilinx_dma_complete_descriptor()
1780 		chan_offset = chan->xdev->dma_config->max_channels / 2;  in xilinx_mcdma_irq_handler()
1783 	chan = chan->xdev->chan[chan_offset];  in xilinx_mcdma_irq_handler()
1910 	if (chan->xdev->dma_config->dmatype == XDMA_TYPE_VDMA) {  in append_desc_queue()
1915 	} else if (chan->xdev->dma_config->dmatype == XDMA_TYPE_CDMA) {  in append_desc_queue()
1920 	} else if (chan->xdev->dma_config->dmatype == XDMA_TYPE_AXIDMA) {  in append_desc_queue()
1941 	if (chan->has_sg && (chan->xdev->dma_config->dmatype == XDMA_TYPE_VDMA)  in append_desc_queue()
2095 	if (!len || len > chan->xdev->max_buffer_len)  in xilinx_cdma_prep_memcpy()
2393 				     chan->xdev->max_buffer_len);  in xilinx_mcdma_prep_slave_sg()
2471 	if ((chan->xdev->dma_config->dmatype == XDMA_TYPE_CDMA) && chan->has_sg)  in xilinx_dma_terminate_all()
2747 static void xdma_disable_allclks(struct xilinx_dma_device *xdev)  in xdma_disable_allclks()  argument
2749 	clk_disable_unprepare(xdev->rxs_clk);  in xdma_disable_allclks()
2750 	clk_disable_unprepare(xdev->rx_clk);  in xdma_disable_allclks()
2751 	clk_disable_unprepare(xdev->txs_clk);  in xdma_disable_allclks()
2752 	clk_disable_unprepare(xdev->tx_clk);  in xdma_disable_allclks()
2753 	clk_disable_unprepare(xdev->axi_clk);  in xdma_disable_allclks()
2766 static int xilinx_dma_chan_probe(struct xilinx_dma_device *xdev,  in xilinx_dma_chan_probe()  argument
2775 	chan = devm_kzalloc(xdev->dev, sizeof(*chan), GFP_KERNEL);  in xilinx_dma_chan_probe()
2779 	chan->dev = xdev->dev;  in xilinx_dma_chan_probe()
2780 	chan->xdev = xdev;  in xilinx_dma_chan_probe()
2782 	chan->ext_addr = xdev->ext_addr;  in xilinx_dma_chan_probe()
2803 		dev_err(xdev->dev, "missing xlnx,datawidth property\n");  in xilinx_dma_chan_probe()
2813 		xdev->common.copy_align = (enum dmaengine_alignment)fls(width - 1);  in xilinx_dma_chan_probe()
2819 		chan->id = xdev->mm2s_chan_id++;  in xilinx_dma_chan_probe()
2823 		if (xdev->dma_config->dmatype == XDMA_TYPE_VDMA) {  in xilinx_dma_chan_probe()
2827 			if (xdev->flush_on_fsync == XILINX_DMA_FLUSH_BOTH ||  in xilinx_dma_chan_probe()
2828 			    xdev->flush_on_fsync == XILINX_DMA_FLUSH_MM2S)  in xilinx_dma_chan_probe()
2836 		chan->id = xdev->s2mm_chan_id++;  in xilinx_dma_chan_probe()
2837 		chan->tdest = chan->id - xdev->dma_config->max_channels / 2;  in xilinx_dma_chan_probe()
2846 		if (xdev->dma_config->dmatype == XDMA_TYPE_AXIMCDMA)  in xilinx_dma_chan_probe()
2851 		if (xdev->dma_config->dmatype == XDMA_TYPE_VDMA) {  in xilinx_dma_chan_probe()
2855 			if (xdev->flush_on_fsync == XILINX_DMA_FLUSH_BOTH ||  in xilinx_dma_chan_probe()
2856 			    xdev->flush_on_fsync == XILINX_DMA_FLUSH_S2MM)  in xilinx_dma_chan_probe()
2860 		dev_err(xdev->dev, "Invalid channel compatible node\n");  in xilinx_dma_chan_probe()
2866 	err = request_irq(chan->irq, xdev->dma_config->irq_handler,  in xilinx_dma_chan_probe()
2869 		dev_err(xdev->dev, "unable to request IRQ %d\n", chan->irq);  in xilinx_dma_chan_probe()
2873 	if (xdev->dma_config->dmatype == XDMA_TYPE_AXIDMA) {  in xilinx_dma_chan_probe()
2876 	} else if (xdev->dma_config->dmatype == XDMA_TYPE_AXIMCDMA) {  in xilinx_dma_chan_probe()
2879 	} else if (xdev->dma_config->dmatype == XDMA_TYPE_CDMA) {  in xilinx_dma_chan_probe()
2888 	if (xdev->dma_config->dmatype != XDMA_TYPE_VDMA) {  in xilinx_dma_chan_probe()
2889 		if (xdev->dma_config->dmatype == XDMA_TYPE_AXIMCDMA ||  in xilinx_dma_chan_probe()
2904 	chan->common.device = &xdev->common;  in xilinx_dma_chan_probe()
2906 	list_add_tail(&chan->common.device_node, &xdev->common.channels);  in xilinx_dma_chan_probe()
2907 	xdev->chan[chan->id] = chan;  in xilinx_dma_chan_probe()
2912 		dev_err(xdev->dev, "Reset channel failed\n");  in xilinx_dma_chan_probe()
2929 static int xilinx_dma_child_probe(struct xilinx_dma_device *xdev,  in xilinx_dma_child_probe()  argument
2936 	if (xdev->dma_config->dmatype == XDMA_TYPE_AXIMCDMA && ret < 0)  in xilinx_dma_child_probe()
2937 		dev_warn(xdev->dev, "missing dma-channels property\n");  in xilinx_dma_child_probe()
2940 		xilinx_dma_chan_probe(xdev, node);  in xilinx_dma_child_probe()
2955 	struct xilinx_dma_device *xdev = ofdma->of_dma_data;  in of_dma_xilinx_xlate()  local
2958 	if (chan_id >= xdev->dma_config->max_channels || !xdev->chan[chan_id])  in of_dma_xilinx_xlate()
2961 	return dma_get_slave_channel(&xdev->chan[chan_id]->common);  in of_dma_xilinx_xlate()
3012 	struct xilinx_dma_device *xdev;  in xilinx_dma_probe()  local
3018 	xdev = devm_kzalloc(&pdev->dev, sizeof(*xdev), GFP_KERNEL);  in xilinx_dma_probe()
3019 	if (!xdev)  in xilinx_dma_probe()
3022 	xdev->dev = &pdev->dev;  in xilinx_dma_probe()
3028 			xdev->dma_config = match->data;  in xilinx_dma_probe()
3029 			clk_init = xdev->dma_config->clk_init;  in xilinx_dma_probe()
3033 	err = clk_init(pdev, &xdev->axi_clk, &xdev->tx_clk, &xdev->txs_clk,  in xilinx_dma_probe()
3034 		       &xdev->rx_clk, &xdev->rxs_clk);  in xilinx_dma_probe()
3039 	xdev->regs = devm_platform_ioremap_resource(pdev, 0);  in xilinx_dma_probe()
3040 	if (IS_ERR(xdev->regs))  in xilinx_dma_probe()
3041 		return PTR_ERR(xdev->regs);  in xilinx_dma_probe()
3044 	xdev->max_buffer_len = GENMASK(XILINX_DMA_MAX_TRANS_LEN_MAX - 1, 0);  in xilinx_dma_probe()
3045 	xdev->s2mm_chan_id = xdev->dma_config->max_channels / 2;  in xilinx_dma_probe()
3047 	if (xdev->dma_config->dmatype == XDMA_TYPE_AXIDMA ||  in xilinx_dma_probe()
3048 	    xdev->dma_config->dmatype == XDMA_TYPE_AXIMCDMA) {  in xilinx_dma_probe()
3053 				dev_warn(xdev->dev,  in xilinx_dma_probe()
3057 					dev_warn(xdev->dev, "Please ensure that IP supports buffer length > 23 bits\n");  in xilinx_dma_probe()
3058 				xdev->max_buffer_len =  in xilinx_dma_probe()
3064 	if (xdev->dma_config->dmatype == XDMA_TYPE_VDMA) {  in xilinx_dma_probe()
3068 			dev_err(xdev->dev,  in xilinx_dma_probe()
3074 					   &xdev->flush_on_fsync);  in xilinx_dma_probe()
3076 			dev_warn(xdev->dev,  in xilinx_dma_probe()
3082 		dev_warn(xdev->dev, "missing xlnx,addrwidth property\n");  in xilinx_dma_probe()
3085 		xdev->ext_addr = true;  in xilinx_dma_probe()
3087 		xdev->ext_addr = false;  in xilinx_dma_probe()
3090 	dma_set_mask_and_coherent(xdev->dev, DMA_BIT_MASK(addr_width));  in xilinx_dma_probe()
3093 	xdev->common.dev = &pdev->dev;  in xilinx_dma_probe()
3095 	INIT_LIST_HEAD(&xdev->common.channels);  in xilinx_dma_probe()
3096 	if (!(xdev->dma_config->dmatype == XDMA_TYPE_CDMA)) {  in xilinx_dma_probe()
3097 		dma_cap_set(DMA_SLAVE, xdev->common.cap_mask);  in xilinx_dma_probe()
3098 		dma_cap_set(DMA_PRIVATE, xdev->common.cap_mask);  in xilinx_dma_probe()
3101 	xdev->common.device_alloc_chan_resources =  in xilinx_dma_probe()
3103 	xdev->common.device_free_chan_resources =  in xilinx_dma_probe()
3105 	xdev->common.device_terminate_all = xilinx_dma_terminate_all;  in xilinx_dma_probe()
3106 	xdev->common.device_synchronize = xilinx_dma_synchronize;  in xilinx_dma_probe()
3107 	xdev->common.device_tx_status = xilinx_dma_tx_status;  in xilinx_dma_probe()
3108 	xdev->common.device_issue_pending = xilinx_dma_issue_pending;  in xilinx_dma_probe()
3109 	xdev->common.device_config = xilinx_dma_device_config;  in xilinx_dma_probe()
3110 	if (xdev->dma_config->dmatype == XDMA_TYPE_AXIDMA) {  in xilinx_dma_probe()
3111 		dma_cap_set(DMA_CYCLIC, xdev->common.cap_mask);  in xilinx_dma_probe()
3112 		xdev->common.device_prep_slave_sg = xilinx_dma_prep_slave_sg;  in xilinx_dma_probe()
3113 		xdev->common.device_prep_dma_cyclic =  in xilinx_dma_probe()
3116 		xdev->common.residue_granularity =  in xilinx_dma_probe()
3118 	} else if (xdev->dma_config->dmatype == XDMA_TYPE_CDMA) {  in xilinx_dma_probe()
3119 		dma_cap_set(DMA_MEMCPY, xdev->common.cap_mask);  in xilinx_dma_probe()
3120 		xdev->common.device_prep_dma_memcpy = xilinx_cdma_prep_memcpy;  in xilinx_dma_probe()
3122 		xdev->common.residue_granularity =  in xilinx_dma_probe()
3124 	} else if (xdev->dma_config->dmatype == XDMA_TYPE_AXIMCDMA) {  in xilinx_dma_probe()
3125 		xdev->common.device_prep_slave_sg = xilinx_mcdma_prep_slave_sg;  in xilinx_dma_probe()
3127 		xdev->common.device_prep_interleaved_dma =  in xilinx_dma_probe()
3131 	platform_set_drvdata(pdev, xdev);  in xilinx_dma_probe()
3135 		err = xilinx_dma_child_probe(xdev, child);  in xilinx_dma_probe()
3140 	if (xdev->dma_config->dmatype == XDMA_TYPE_VDMA) {  in xilinx_dma_probe()
3141 		for (i = 0; i < xdev->dma_config->max_channels; i++)  in xilinx_dma_probe()
3142 			if (xdev->chan[i])  in xilinx_dma_probe()
3143 				xdev->chan[i]->num_frms = num_frames;  in xilinx_dma_probe()
3147 	err = dma_async_device_register(&xdev->common);  in xilinx_dma_probe()
3149 		dev_err(xdev->dev, "failed to register the dma device\n");  in xilinx_dma_probe()
3154 					 xdev);  in xilinx_dma_probe()
3157 		dma_async_device_unregister(&xdev->common);  in xilinx_dma_probe()
3161 	if (xdev->dma_config->dmatype == XDMA_TYPE_AXIDMA)  in xilinx_dma_probe()
3163 	else if (xdev->dma_config->dmatype == XDMA_TYPE_CDMA)  in xilinx_dma_probe()
3165 	else if (xdev->dma_config->dmatype == XDMA_TYPE_AXIMCDMA)  in xilinx_dma_probe()
3173 	xdma_disable_allclks(xdev);  in xilinx_dma_probe()
3175 	for (i = 0; i < xdev->dma_config->max_channels; i++)  in xilinx_dma_probe()
3176 		if (xdev->chan[i])  in xilinx_dma_probe()
3177 			xilinx_dma_chan_remove(xdev->chan[i]);  in xilinx_dma_probe()
3190 	struct xilinx_dma_device *xdev = platform_get_drvdata(pdev);  in xilinx_dma_remove()  local
3195 	dma_async_device_unregister(&xdev->common);  in xilinx_dma_remove()
3197 	for (i = 0; i < xdev->dma_config->max_channels; i++)  in xilinx_dma_remove()
3198 		if (xdev->chan[i])  in xilinx_dma_remove()
3199 			xilinx_dma_chan_remove(xdev->chan[i]);  in xilinx_dma_remove()
3201 	xdma_disable_allclks(xdev);  in xilinx_dma_remove()