Hi, I have a PPC440GX board with 512M of memory. I use "mem=496M" boot argument to keep Linux from using the uppermost 16MB of memory. That region of memory is instead used for hardware communications. Occasionally however the CPU will read/write this space as well.
My questions concerns TLB entries. How does Linux define this region in the TLB? Does it define this region as non-cacheable in the TLB? If not, what is the correct way to define an area of memory that is outside the OS's control as non-cacheable? Thanks, Marc W. Howard [EMAIL PROTECTED] _______________________________________________ Linuxppc-embedded mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-embedded
