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Altera_Forum
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15 years ago

How to get physical address in Windows

I need to test PCIe DMA suported by Stratix4GX HardIP. In order to perform DMA transactions from PCIe card to System Memory, I need to request Windows to allocate some memory. In additioin, I need ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Remember that you will either need to have allocated memory that is physically continuous, or allow for physical address discontinuities at page boundaries (assume a 4k page if you don't know the page size).