On Sat, 11 Feb 2012 10:34:15 -0200, Eugeni Dodonov <eugeni.dodonov at intel.com> wrote: > This is yet another chapter in the ongoing saga of bringing RC6 to Sandy > Bridge machines by default. > > Now that we have discovered that RC6 issues are triggered by RC6+ state, > let's try to disable it by default. Plain RC6 is the one responsible for > most energy savings, and so far it haven't given any problems - at least, > none we are aware of. > > So with this, when i915_enable_rc6=-1 (e.g., the default value), we'll > attempt to enable plain RC6 only on SNB. For Ivy Bridge, the behavior > stays the same as always - we enable both RC6 and deep RC6. We appear to be lacking a bunch of tested-bys for what we proclaim to have been tested. -Chris -- Chris Wilson, Intel Open Source Technology Centre
