Re: __get_free_pages()

James Mastros (root@jennifer-unix.dyn.ml.org)
Thu, 28 May 1998 20:01:41 -0400 (EDT)

On Thu, 28 May 1998 ralf@uni-koblenz.de wrote:
> Even that won't solve the problems with all the different architecture
> aspects. Some Wrec^H^H^H^HDeskstation machines allocate DMA capable
> memory for their ISA/VLB peripherals from a separate pool of memory which
> is only intended for DMA but not for usage as ordinary system memory.

It would require (AFAIK -- please, sombody correct me) some rather
fundemental changes to everything that touches anything that does DMA to
use this memory. (Indeed, I fail to see the point of this memory -- if
you can't access it except by DMA, how can you put somthing there to be
DMAed without DMAing twice?)

-=- James Mastros

-- 
True mastery is knowing enough to bullshit the rest.
	-=- Me
http://www.rtweb.net/theorb coming soon (or when I get around to it).




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