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Can you mmap (user) and ioremap_nocache (kernal) the same phys address?

685 Views Asked by domgary At 12 May 2025 at 13:30 2025-05-12 13:40:51

Can you mmap (user) and ioremap_nocache (kernal) the same phys address say that of an fpga?

mmap ioremap
Original Q&A
1

There are 1 best solutions below

0
ayyappa ch On 06 March 2015 at 10:01

yes . mmap will map device address to user space and ioremap will map device address to kernel virtual address. Both return addresses will point to same device address finally.

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