Messages in this thread | | | Date | Fri, 12 Jan 2001 03:56:20 -0200 | From | Ralf Baechle <> | Subject | Re: Subtle MM bug |
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On Thu, Jan 11, 2001 at 12:56:57AM +0100, David Weinehall wrote:
> > The MMU on these systems is a CAM, and the mmu table is thus backwards to > > convention. (It also means you can notionally map two physical addresses to > > one virtual but thats undefined in the implementation ;)) > > Are there any other (not yet supported) platforms with similar (or other > unrelated, but hard to support because of the current architecture of > the kernel) problems? > > (No, I have no secret trumps up my sleeve, I'm just curious.)
Having a reverse mappings is the least sucky way to handle virtual aliases of certain types of MIPS caches.
Ralf
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