Re: Prezeroing V2 [0/3]: Why and When it works

[Matt Mackall]

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.

-- 
Mathematics is the supreme nostalgia of our time.
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