lkml.org 
[lkml]   [2002]   [Oct]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: CPU/cache detection wrong
    On Tue, Oct 01, 2002 at 03:35:54PM +0200, Maciej W. Rozycki wrote:


    > > Some of the tualatins have an errata which makes L2 cache sizing
    > > impossible. They actually report they have 0K L2 cache. By checking
    > > the CPU model, we can guess we have at least 256K (which is where Linux
    > > got that number from in your case). But this however means the 512K
    > > models will report as 256K too.
    > > To work around it, boot with cachesize=512 and all will be good.
    >
    > Strange -- why not to default to 256K and override it with the value
    > obtained from a cache descriptor if != 0, then?

    Because the cache descriptor IS zero. So we default to 256K.

    Dave

    --
    | Dave Jones. http://www.codemonkey.org.uk
    -
    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/

    \
     
     \ /
      Last update: 2005-03-22 13:29    [W:0.040 / U:0.172 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site