Re: Using video memory as system memory

From: Pavel Machek (pavel@ucw.cz)
Date: Thu Apr 11 2002 - 09:23:04 EST


Hi!

> Does the kernel support noncontiguous main memory like this, or is it just
> plain impossible to use PCI-mapped memory as main memory?

It might be possible (don't know why it does not work for you), but
bear in mind that PCI is *very* slow compared to your main memory.

[Oh, you might want to add that memory late in boot phase. At begining
of kernel boot, that area is probably not mapped, yet. PCI is
initialized later.]
                                                                        Pavel

-- 
(about SSSCA) "I don't say this lightly.  However, I really think that the U.S.
no longer is classifiable as a democracy, but rather as a plutocracy." --hpa
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