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Re: PAE and i386 kernel
In article <20091006201027.GA17163%britannica.bec.de@localhost>,
Joerg Sonnenberger <joerg%britannica.bec.de@localhost> wrote:
>On Tue, Oct 06, 2009 at 08:08:29PM +0000, Christos Zoulas wrote:
>> In article <20091006140232.GA25008%colwyn.zhadum.org.uk@localhost>,
>> Matthias Scheler <tron%zhadum.org.uk@localhost> wrote:
>> >On Tue, Oct 06, 2009 at 03:40:21PM +0200, Christoph Egger wrote:
>> >> > Thanks for the answer. Is there any idea what would be required
>> >> > to support it for i386 kernels?
>> >> AFAIK the bootstrapping code.
>> >What about bus_dma() support? Can NetBSD/i386 already handle
>> >DMA to 64-bit addresses?
>> It would need to limit dma buffers to below 4GB. This needs to be fixed
>> anyway (read the comment in the DRM code).
>There are 64bit aware devices.
Yes, and we need to change bus_size_t to accommodate them. This is too
much work for little benefit.
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