> > vmalloc implementation is a lot simpler, I just did it based on Russel's
> > patches, and it's plenty enough for what we need (I don't think a driver
> > will ever need more than one page uncached anyway). I added a definition
> > for PAGE_UNCACHED. I currently use a #ifdef PAGE_UNCACHED to export or
> > not vmalloc_uncached from vmalloc.c, but this is a temporary solution so
> > I can make sure my eth. driver works.
>
> The other advantage of vmalloc based stuff is it covers things like MIPS boxes
> with fixed area partitioning because I can force the return to do stuff like
>
> x=_KSEG_UNCACHED|vmalloc(size)
Nope, that only works for kernel memory via kmalloc/__get_free_pages:
addr = get_free_page(GFP_KERNEL);
addr = KSEG1ADDR(addr); /* => addr |= 0x20000000 */
vmalloc caching attributes can only be set in the page table.
Ralf
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