Messages in this thread | | | Date | Sun, 03 May 1998 11:03:57 +0200 | From | Simon Richter <> | Subject | Re: Asymmetric multiprocessing? |
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Alan Cox wrote:
> Hairy but interesting project. Are you thinking of the different CPU;s > sharing memory or not. The unshared memory case will be 'interesting'
I'm thinking of the mixed case, such that the CPUs may have own memory, but they may also share the memory. On the example amiga, the memory map could look like this:
1-2Meg "Chip" memory, accessible from anywhere (68k, ppc, dma) 2-8Meg "Fast" memory, accessible to the 68020 (ppc and 060 only on some boards...) 4-8Meg memory on the 68060 board, accessible to the 68060 (and the ppc, if the ppc board and the 060 board share a common high-speed bus [i.e. are from the same vendor :-) ]) 4-8Meg memory on the ppc board, if the ppc cannot use the 060's memory.
This is the "hairy" part, isn't it? :-)
CU Simon
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