Re: (reposting) how to get DMA'able memory within 4GB on 64-bit m

[David S. Miller]

Ben LaHaise writes:
 > On Thu, 28 Jun 2001, David S. Miller wrote:
 > 
 > > Please note that this is nonstandard and undocumented behavior.
 > >
 > > This is not a supported API at all, and the way 64-bit DMA will
 > > eventually be done across all platforms is likely to be different.
 > 
 > Well, what is the standard API to use?  All these 64 bit cards in my
 > machine really make that 95% cpu usage in bounce buffer copying rather
 > depressing.

There simply is no standard API for 64-bit DAC, sorry.

This isn't changing in 2.4.x, please face facts.  It simply is not
a feature of 2.4.x, and we are well beyond feature freeze now.

It is certainly changing in 2.5.x which is just around the corner.

Later,
David S. Miller
[e-mail]