Re: increased translation cache footprint in v2.6

Dan Malek
2005-06-28T13:50:25Z

On Jun 28, 2005, at 2:21 AM, Benjamin Herrenschmidt wrote:

> How so ? the linux page table structure allow you to format the PTE and
> PMD contents pretty much the way you want ...

Pretty much the way, but not exactly :-)

> Paul told me the 8xx has some restrictions about what goes at the "PMD"
> level that is a problem for us (is it cache inhibited bit ?) and thus
> we
> cannot completely do the PMD/PTE thingy,

There are some page control options that would be easier handled at
the pmd boundary. Cache mode is one of them.

-- Dan