Hi!
> I am not speaking of DMA'ing at the refresh frequency (approx 70 times
> per second the complete video memory), just the modified 64Kb blocks,
> "once upon a while": if a single pixel is written twice, you will just
> see the latter written value on the screen - but who cares.
> Been able to DMA the complete video memory image around 5-10 times/second
> should be over the human eye sensitivity.
> Moreover this pixel will stay on the processor memory cache a lot
> longer, even without MTRR processors.
Yep, that should work. Same trick as xterm uses.
Pavel
[Of course, user *will* see you are only updating at 5fps... But it will
be way beter than current slowness.] Are you going to create a patch?
-- Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt, details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Mon Oct 15 2001 - 21:00:51 EST