Messages in this thread | ![/](/images/icornerl.gif) | | Date | Fri, 28 Feb 2003 15:56:15 +0100 | From | Andi Kleen <> | Subject | Re: Proposal: Eliminate GFP_DMA |
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On Fri, Feb 28, 2003 at 03:55:37PM +0000, Alan Cox wrote: > On Fri, 2003-02-28 at 14:34, Matthew Wilcox wrote: > > umm. are you volunteering to convert drivers/net/macmace.c to the pci_* > > API then? also, GFP_DMA is used on, eg, s390 to get memory below 2GB and > > on ia64 to get memory below 4GB. > > The ia64 is a fine example of how broken it is. People have to hack around > with GFP_DMA meaning different things on ia64 to everything else. It needs > to die.
At least on x86-64 it is still needed when you need have some hardware with address limits < 4GB (e.g. an 24bit soundcard)
pci_* on K8 only allows address mask 0xffffffff or unlimited.
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