Re: [PATCH 2.6.20 1/1] fbdev, mm: hecuba/E-Ink fbdev driver

On Sat, Feb 17, 2007 at 08:25:07AM -0500, Jaya Kumar wrote:

On 2/17/07, Peter Zijlstra [off-list ref] wrote:

quoted

And, as Andrew suggested last time around, could you perhaps push this
fancy new idea into the FB layer so that more drivers can make us of it?

I would like to do that very much. I have some ideas how it could work
for devices that support clean partial updates by tracking touched
pages. But I wonder if it is too early to try to abstract this out.
James, Geert, what do you think?

This would also provide an interesting hook for setting up chained DMA
for the real framebuffer updates when there's more than a couple of pages
that have been touched, which would also be nice to have. There's more
than a few drivers that could take advantage of that.

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