Forum Discussion

7aximus's avatar
7aximus
Icon for New Contributor rankNew Contributor
3 years ago

How to request more DMA memory for Arria 10 "pcie"?

Currently, I can use the "pcie_dma_coherent" function to request 1M of data, but when I try to request more memory, I encounter an error. What is the maximum amount of memory that can be allocated fo...
Wincent_Altera's avatar
Wincent_Altera
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hi,


Do you want to perform memory read or write ?


Regards,

Wincent_Intel


  • 7aximus's avatar
    7aximus
    Icon for New Contributor rankNew Contributor
    3 years ago

    Hi,

    I want to use PCIE dma to read and write data, and I want to apply for 1G dma memory space.

    I wonder if PCIE dma can apply for larger memory, how to apply?