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>>>>> "Absolut" == Absolut Hunter <absoluthunter at comcast.net> writes:
Absolut> A useful piece to this might be that I am attempting to map
Absolut> these two memory regions contiguously, so that Linux
Absolut> doesn't see any memory holes.
Absolut> 0-2MB SRAM 2MB-34MB SDRAM
Likely you can't do that, because you must map the blocks at a
multiple of their address. (I'm not an expert at PPC mappings, but this
is typically the case)
So you can do:
0x000000000 SRAM (has a hole from 2MB->32Mb)
0x002000000 SDRAM
or:
0x000000000 SDRAM
0x002000000 SRAM
Absolut> I would be open to any other ways that SRAM / SDRAM might
Absolut> be mapped to work, and still provide a performance increase
Absolut> for the kernel.
I think that you would be better to lock the relevant interrupt code
into the cache, if that is possible.
- --
] Michael Richardson Xelerance Corporation, Ottawa, ON | firewalls [
] mcr @ xelerance.com Now doing IPsec training, see |net architect[
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