Re: [PATCH v3 0/9] Clean up write-combining MTRR addition

On Mon, May 13, 2013 at 4:58 PM, Andy Lutomirski luto@amacapital.net wrote:

A fair number of drivers (mostly graphics) add write-combining MTRRs. Most ignore errors and most add the MTRR even on PAT systems which don't need to use MTRRs.

This series adds new functions arch_phys_wc_{add,del} that, on PAT-less x86 systems with MTRRs, add MTRRs and report errors, and that do nothing otherwise. (Other architectures, if any, with a similar mechanism could implement them.)

That's the path to upstream for this? Should it go through drm-next? (Sorry for possible noob question -- I've never sent in anything other than trivial fixes to drm stuff before.)

--Andy