Re: Linux address mapping
Richard Henderson (rth@twiddle.net)
Mon, 21 Jun 1999 23:39:36 -0700
On Fri, Jun 04, 1999 at 08:22:58AM -0700, David S. Miller wrote:
> Up until now the Alpha port has not modified the PAL code from the
> reference version provided by Digital, so in essence the page table
> structure used by Tru64/DUX/whatever is what Linux is using. There is
> no reason this couldn't be changed and experimented with in the future
> though.
It's hard to see what we'd gain by modifying the PALcode.
The Alpha supports a KSEG similar to MIPS. The kernel lives in
this 40-bit hardware supported region requiring no tlb misses at all.
r~
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