On Fri, Oct 16, 2015 at 10:53 AM, sahlot arvind <asahlot@xxxxxxxxx> 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 _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
