On Fri, 02 Nov 2012 15:16:36 +0000 Chris Wilson <chris at chris-wilson.co.uk> wrote: > On Wed, 31 Oct 2012 15:41:05 -0700, Jesse Barnes <jbarnes at virtuousgeek.org> wrote: > > The BIOS shouldn't be touching this memory across suspend/resume, so > > just leave it alone. This saves us ~6ms on resume on my T420 (retested > > with write combined PTEs). > > > > v2: change gtt restore default on pre-gen4 (Chris) > > move needs_gtt_restore flag into dev_priv > > v3: make sure we restore GTT on resume from hibernate (Daniel) > > use opregion support as the cutoff for restore from resume (Chris) > > > > Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org> > > My troublesome PNV of yore remains happy with this patch, so > Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk> > > Bikeshed: intel_bios_has_opregion(), as we test for this in different > locations in different ways. > -Chris > Ended up using dev_priv->opregion.header as the check, seems simplier. Integrated your other comments and reposted a new series. -- Jesse Barnes, Intel Open Source Technology Center
