[SOLVED] mmap of several GB of reserved memory using
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A follow-up question: What's the need for performing the ioremap at all?
DMA will use the physical address, and the user level process will use the mmaped address.
Sorry, a more basic question first - once such a memory range is reserved, is it also possible to perform DMA into this memory area? How does the driver obtain the DMA address to be used for this purpose?
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