[Linux-ia64] Re: [patch] support 64 bit pci_alloc_consistent

From: Arjan van de Ven <arjanv_at_redhat.com>
Date: 2003-05-19 00:21:30
On Sun, May 18, 2003 at 09:17:48AM -0500, James Bottomley wrote:
> (it uses 32 bit addr and 32 bit len descriptors, but reduces len to 24
> bits to steal the extra byte for 7 bits extra addressing).  However, it
> is forced to request the full 64 bit address mask---I've never worked
> out what will happen to it on a machine with more than 512GB memory.

Uh??? right now even in 2.4 arbitrary bitmasks are supported for
non-coherent memory.
Received on Sun May 18 07:21:41 2003

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