David, I agree. It's my number one work item this week. Well, so far, anyway :-) Jon On Mon, 2008-08-11 at 16:19 -0700, David VomLehn wrote: > Jon Fraser wrote: > > David, > > > > I'm battling this now. Our mips 24k has a virtually indexed cache. > > We're definitely seeing issues where the cache hasn't been flushed > > for highmem pages. I thought I had this fixed, but I'm still seeing > > some problems. > > As I understand it, you have the most difficult combination of things: > o You are using high memory > o You have a virtually indexed cache > o You have data cache aliases > > Fortunately, we have only the first two of those in our system. We should > probably put together a coherent set of patches for people who want high memory. > So far as I can tell, the 32-bit MIPS architecture has a long way to go before it > runs out of steam in the embedded world. I expect more people will need MIPS > highmem support in the next few years. > > David > >
