On Thu, Dec 23, 2004 at 11:29:10AM -0800, Christoph Lameter wrote:

2. Hardware support for offloading zeroing from the cpu. This avoids
the invalidation of the cpu caches by extensive zeroing operations.

I'm wondering if it would be possible to use typical video cards for
hardware zeroing. We could set aside a page's worth of zeros in video
memory and then use the card's DMA engines to clear pages on the host.

This could be done in fbdev drivers, which would register a zeroer
with the core.

-- 
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