Messages in this thread | | | Subject | Re: Proposal: Eliminate GFP_DMA | From | Arjan van de Ven <> | Date | 28 Feb 2003 16:31:27 +0100 |
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On Fri, 2003-02-28 at 15:56, Andi Kleen wrote: > 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.
for 2.7 the underlying low level budy allocator could (should?) just take a DMA bitmask [unhandled content-type:application/pgp-signature] | |