Messages in this thread | | | From | Thomas Schlichter <> | Subject | Re: [RFC Patch] use MTRR for write combining if PAT is not available | Date | Sun, 11 Oct 2009 11:56:54 +0200 |
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Arjan van de Ven wrote: > Thomas Schlichter wrote: > > So, convincing Ubuntu to enable PAT would be a workaround, but I think > > the problem would still exist and should be fixed. > > I think it's time to get rid of CONFIG_PAT at all.. and just have it be > there. Making 10+ year old CPU features that are essential functionality a > config option... ... not a good idea to be honest.
I do completely agree with you in this point.
But should the current behavior of not using MTRR for write combining when PAT is disabled (for whatever reason) stay? I think it is more consistent to do whatever is necessary to enable write combining when we are asked to.
Kind regards, Thomas
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