Re: Proposed new kernel noncaching memory allocator for the 405gp

[Ralph Blach <rblach@intrex.net>]

Frank,

Yes, but these allocate on a page boundry and I was thinking of something a
little more granular.

Any objections?

Chip

Frank Rowand wrote:

> Ralph Blach wrote:
> >
>
> >
> > David Blythe wrote:
>
> > > I think something more general then pci_alloc_consistent would be
> > better
> > > for devices that are not pci based.  We are still working on getting a
> >
> > > pci OHCI usb to work with the walnut card and are running into a lot
> > of
> > > cache coherency problems.
>
> Dan Malek has provided the functions consistent_alloc(), consistent_free(),
> and consistent_sync() for uses other than PCI.  They are in linuxppc_2_5
> rev 1.446 and later (I'm not sure if they are in any earlier version).
> They are also in my active development kernel, but not yet in any kernel
> that I have put on my ftp site.
>
> -Frank
> --
> Frank Rowand <frank_rowand@mvista.com>
> MontaVista Software, Inc

--
Ralph "Chip" Blach
KF4WBK
Chapel Hill, North Carolina


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