allocating non-cacheable memory

Kevin Fry kevin at
Thu Dec 20 12:44:48 EST 2001

What is the best way to allocate some non-cacheable memory for I/O use?
Right now we are going to setup a BAT table with a non-cacheable memory
region and use that for all I/O, but does linux have a nice neat
function to grab a page and set it up non-cacheable for us?
I was reading in the archives that the #define PAGE_NOCACHE doesn't



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