Xilinx xdma linux

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Raw Blame History. Data will be push out the h2c channel and then read back through the c2h channel and written to the output data file. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Setup the DMA c2h channels to wait for incomming data from the h2c channels. Wait to make sure the DMA is ready to receive data. Setup the DMA to write to the h2c channels. Data will be push out the h2c channel.

Wait for the current transactions to complete. Verify that the written data matches the read data. Exit with an error code if an error was found during testing.

Report all tests passed and exit.I ran "make" and "make install" in the unzipped "xdma" directory, and I get the kernel driver.

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I can load it:. I did run the provided "xdma-udev-command. I saw your post and as it seems, you are having trouble with driver development for Linux I would like to offer you to try out our driver development toolkit - WinDriver.

Sign In Help. Turn on suggestions. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Showing results for. Search instead for. Did you mean:. Installing xdma drivers on Linux Is there a step I'm missing?

Or, are the AlphaData drivers interfering with the install? All forum topics Previous Topic Next Topic. Re: Installing xdma drivers on Linux Hello, I saw your post and as it seems, you are having trouble with driver development for Linux I would like to offer you to try out our driver development toolkit - WinDriver.

The toolkit enables you to access your hardware and implement your device functionality, without having to develop in the kernel mode. For more information please contact me via email: evgenym jungo.This seems to work great. I have been using the old example drivers and code from Xilinx AR These work great until I have to do more than consecutive DMA transfers.

At the th transfer I get a segmentation fault. With debug turned on in in the kernel driver, I can see the kernel driver is having issues because it tries to de-reference a NULL pointer during the creation of the th DMA transfer. I have downloaded the new files.

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The new release doesn't work at all for me. So I am back to my original problem. My application requires continuous DMA transfers of digital signal data that needs to be processed in real time. Sign In Help. Turn on suggestions. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Showing results for. Search instead for. Did you mean:. Has anyone had this experience? Any thoughts? All forum topics Previous Topic Next Topic.

The new driver is enhanced version of the legacy driver. Have you referred to the readme file with the driver to know the steps to install it? Before installing the new driver, could you try to remove the legacy driver manually?Skip to content. Branch: master.

Create new file Find file History. Latest commit. Latest commit c12f Feb 27, This software can be used directly or referenced to create drivers and software for your Xilinx FPGA hardware design.

How to Create Linux Applications using Xilinx SDK

This directory also contains the following scripts and directories. Root permissions will be required to run this script. For each direction the performance script loops from 64 bytes to 4MBytes and generate performance numbers byte size doubles for each loop count. You can grep for 'data rate' on those two files to see data rate values. Data rate values are in percentage of maximum throughput. Usage: - Change directory to the driver directory.

xilinx xdma linux

As of Frequently asked questions: Q: How do I uninstall the kernel module driver? A: Use the following commands to uninstall the driver. Q: By default the driver uses interupts to signal when DMA transfers are completed.

How do I modify the driver to use polling rather than interrupts to determine when DMA transactions are completed?

xilinx xdma linux

A: The driver can be changed from being interrupt driven default to being polling driven poll mode when the kernel module is inserted. If desired the driver can be modified such that some channels are interrupt driven while others are polling driven. You signed in with another tab or window. Reload to refresh your session.

You signed out in another tab or window. XDMA driver refresh. Dec 18, GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again.

Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

Sign up. The official Linux kernel from Xilinx. Branch: master. Find file. Sign in Sign up. Go back. Launching Xcode If nothing happens, download Xcode and try again. Latest commit. Latest commit a0 Apr 9, You signed in with another tab or window.

Reload to refresh your session. You signed out in another tab or window. Feb 19, Apr 1, GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

Skip to content. Permalink Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. Branch: master. Find file Copy path.

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Cannot retrieve contributors at this time. Raw Blame History. This software can be used directly or referenced to create drivers and software for your Xilinx FPGA hardware design.

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This directory also contains the following scripts and directories. Root permissions will be required to run this script. For each direction the performance script loops from 64 bytes to 4MBytes and generate performance numbers byte size doubles for each loop count.

You can grep for 'data rate' on those two files to see data rate values. Data rate values are in percentage of maximum throughput. Usage: - Change directory to the driver directory. As of Frequently asked questions: Q: How do I uninstall the kernel module driver? A: Use the following commands to uninstall the driver.

Q: By default the driver uses interupts to signal when DMA transfers are completed.

How do I modify the driver to use polling rather than interrupts to determine when DMA transactions are completed? A: The driver can be changed from being interrupt driven default to being polling driven poll mode when the kernel module is inserted. If desired the driver can be modified such that some channels are interrupt driven while others are polling driven.I would like to use the axi-dma core in Linux in simple mode without scather gatter engine.

There is not any example of how to use it, so any help would be apreciated. However I don't know which is the way to get the transference descriptor: sg? View solution in original post. Also even after fixing this issues manually, we cannot pass the test in:. The problem now is the transfer never ends.

Maybe an interrupt problem? I believe my colleague is not using s2mm, mm2s. Then when I insmod xdma. Thank you!

xilinx xdma linux

You just insmod axidmatest. I have been trying to get the axidmatest running and I have tried culurciello's xdma driver modified for the 3. However, beyond that we only keep getting a timeout. Following is the dmesg output from dmatest from Xilinx statically loaded to run after the drivers have been loaded.

I did not compile in the axidmatest for the xdma which was later dynamically loaded. All of this is for 3.

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See attached for a picture of the vivado block diagram. We followed this tutorial:.

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Is this the correct approach to take? Well we got our DMA engine working finally.

xilinx xdma linux

Here were a few issues we had to deal with in case it helps someone else :. We were not rebuilding the FSBL for new hardware we generated. Ported to Vivado We found that enabling scatter gather or unaligned transfers caused the built in test and zynq-xdma driver to fail even if the devicetree was configured to reflect the update.

A comment about the interrupts, we had been using the concat IP core to connect our interrupts to the PS7 core. We found that the behavior of this core changed from Vivado In older versions, the connections would append to the MSB so interrupts of 59 and 58 were appropriate in the devicetree. The newer core seems to append connections to the lsb so that 29 and 30 are appropriate in the devicetree. We debugged this behavior using chipscope.


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