| Message ID | 20250314134717.703287-1-thomas.gessler@brueckmann-gmbh.de (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | dmaengine: xilinx_dma: Set max segment size | expand |
On Fri Mar 14, 2025 at 2:47 PM CET, Thomas Gessler wrote: > Set the maximumg DMA segment size from the actual core configuration > value. Without this setting, the default value of 64 KiB is reported, > and larger sizes cannot be used for IIO DMAEngine buffers. > > Signed-off-by: Thomas Gessler <thomas.gessler@brueckmann-gmbh.de> Tested-by: Folker Schwesinger <dev@folker-schwesinger.de> > --- > drivers/dma/xilinx/xilinx_dma.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c > index 108a7287f4cd..4b4a299e3807 100644 > --- a/drivers/dma/xilinx/xilinx_dma.c > +++ b/drivers/dma/xilinx/xilinx_dma.c > @@ -3114,6 +3114,8 @@ static int xilinx_dma_probe(struct platform_device *pdev) > } > } > > + dma_set_max_seg_size(xdev->dev, xdev->max_buffer_len); > + > if (xdev->dma_config->dmatype == XDMA_TYPE_AXIDMA) { > xdev->has_axistream_connected = > of_property_read_bool(node, "xlnx,axistream-connected");
diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c index 108a7287f4cd..4b4a299e3807 100644 --- a/drivers/dma/xilinx/xilinx_dma.c +++ b/drivers/dma/xilinx/xilinx_dma.c @@ -3114,6 +3114,8 @@ static int xilinx_dma_probe(struct platform_device *pdev) } } + dma_set_max_seg_size(xdev->dev, xdev->max_buffer_len); + if (xdev->dma_config->dmatype == XDMA_TYPE_AXIDMA) { xdev->has_axistream_connected = of_property_read_bool(node, "xlnx,axistream-connected");
Set the maximumg DMA segment size from the actual core configuration value. Without this setting, the default value of 64 KiB is reported, and larger sizes cannot be used for IIO DMAEngine buffers. Signed-off-by: Thomas Gessler <thomas.gessler@brueckmann-gmbh.de> --- drivers/dma/xilinx/xilinx_dma.c | 2 ++ 1 file changed, 2 insertions(+)