Re: [PATCH] introduce config option to disable DMA zone on i386

[Paul Mundt]

On Thu, Dec 28, 2006 at 03:03:02PM -0200, Marcelo Tosatti wrote:
> The following patch adds a config option to get rid of the DMA zone on i386.
> 
> Architectures with devices that have no addressing limitations (eg. PPC)
> already work this way.
> 
> This is useful for custom kernel builds where the developer is certain that 
> there are no address limitations.
> 
Don't know if you're aware or not, but there's already a CONFIG_ZONE_DMA
in -mm that accomplishes this, which goes a bit further in that it rips
out all of the generic ZONE_DMA references. Quite a few architectures
that have no interest in the zone are using this already.
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