Asha, You let the kernel now that X amount is DMA space only. It depends on architecture though. What is architecture being worked upon? - Bharath H S On Mon, Dec 27, 2010 at 2:36 PM, Asha R <rd.asha22@xxxxxxxxx> wrote: > Thanks Adam Lee. > Is this mem= or memmap=? > Regards, > Asha > On Mon, Dec 27, 2010 at 1:01 PM, Adam Lee <adam8157@xxxxxxxxx> wrote: >> >> On Mon, Dec 27, 2010 at 2:59 PM, Asha R <rd.asha22@xxxxxxxxx> wrote: >> > Hi, >> > I want to reserve one range of physical memory say from 0x10000000 >> > of 256MB >> > in Linux. This region is required for DMA functions alone. >> > Please help me understand how we can reserve this in Linux. Can this be >> > done using boot options or any other? >> > >> > Regards, >> > Asha >> >> try adding "mem=256M$0x10000000" in arg. >> >> via http://lxr.linux.no/source/Documentation/kernel-parameters.txt >> >> -- >> Regards, >> Adam Lee >> -------------------------------------------------- >> E-mail: adam8157@xxxxxxxxx >> Website: http://www.adam8157.info >> -------------------------------------------------- > > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies@xxxxxxxxxxxxxxxxx > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
