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3 Commits

Author SHA1 Message Date
David S. Miller
4e286d5be6 [SPARC64]: MAX_PHYSADDR_BITS et al. really need to be 42 bits not 41. 
Signed-off-by: David S. Miller <davem@davemloft.net>
 2007-04-26 01:55:24 -07:00
David S. Miller
d78d0891d3 [SPARC64]: Use SPARSEMEM_STATIC 
Decrease the SECTION_SIZE_BITS --> MAX_PHYSADDR_BITS
range a little bit.

The cost of going to SPARSEMEM_STATIC becomes 8K of BSS space, and in
return we save a pointer dereferences on every page struct lookup.
Even better we hit the main kernel image for the base address which is
in a hugepage locked TLB entry.

Signed-off-by: David S. Miller <davem@davemloft.net>
 2007-04-26 01:55:22 -07:00
David S. Miller
d1112018b4 [SPARC64]: Move over to sparsemem. 
This has been pending for a long time, and the fact
that we waste a ton of ram on some configurations
kind of pushed things over the edge.

Signed-off-by: David S. Miller <davem@davemloft.net>
 2006-03-20 01:14:22 -08:00