I've tried to port ldd3 for the latest kernel source. Here's the link of my repository if anyone needs it - https://github.com/omerjerk/ldd3_scull On Mon, Oct 19, 2015 at 4:34 PM, Mulyadi Santosa <mulyadi.santosa@gmail.com> wrote:
On Fri, Oct 16, 2015 at 10:53 AM, sahlot arvind <asahlot@gmail.com> wrote:
Hi,
Is there an API kernel exposes to use for a driver in order to reserve physical address space? I mean I want to reserve 5GB (or more if allowed) of contiguous physical address space anywhere in the address range (wherever it is available.. doesn't matter) and then I want to map that physical address range in the kernel to get a virtual address so that my driver can dereference that virtual pointer to access the mapped physical address range.
Thanks in advance! Sahlot
5 GB is alot. If you are sure about it, then I guess boot_memalloc() might be the only choice
-- regards,
Mulyadi Santosa Freelance Linux trainer and consultant
blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com
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