> > > I've also been thinking about dynamically using large > TLB/PTE mappings > > > for ioremap on 405/440. > > > > OK, I expect not so much benefit from this measure but it > depends on the > > application, of course. > > Yes, I've seen a lot of apps with huge shared memory areas across PCI > that can benefit from this...they used BATs on classic PPCs.
hmm, I wonder if this would be useful for systems using JFFS2/MTD? JFFS2/MTD usually ioremaps the underlying FLASH memory, which can be many MB. Jocke ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
