Hi ,
I have an use-case where i need to reserve high volume memory buffer - (Video buffer) and it has to be shared between user-space and kernel space. Please help me how to we achieve this using "/dev/pmem" device ?
When registering platform device - PMEM device, we are supplying base address .And this memory is ioremap-ed under pmem driver . Please let me know how this memory is reserved ? Is it necessary to boot linux with param MEM , to define less memory ?
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With Regards,
ShankarGanesh K .