I have a silly question.

I've noticed that some, though no all, video drivers add their video memory
to MTRR as 'write-combining' if both MTRR and AGP are configured in.

Is there a reason that all video drivers don't do this?  Is it all would 
benefit from write-combining memory, but that some simply haven't been 
updated to take advantage of it?  Or could write-combining actually be 
detrimental to some video drivers?  (And if the former, would it make
more sense to do the mtrr_add in a central location, say agpgart?)

Ali
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to