From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Widawsky Subject: Re: [PATCH 4/5] drm/i915: Use eLLC/LLC by default when available Date: Thu, 4 Jul 2013 11:40:37 -0700 Message-ID: <20130704184036.GJ5488@bwidawsk.net> References: <1372960927-1112-1-git-send-email-ben@bwidawsk.net> <1372960927-1112-4-git-send-email-ben@bwidawsk.net> <20130704181709.GH18285@phenom.ffwll.local> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from shiva.localdomain (unknown [209.20.75.48]) by gabe.freedesktop.org (Postfix) with ESMTP id 8634AE5F06 for ; Thu, 4 Jul 2013 11:40:40 -0700 (PDT) Content-Disposition: inline In-Reply-To: <20130704181709.GH18285@phenom.ffwll.local> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: Daniel Vetter Cc: Intel GFX List-Id: intel-gfx@lists.freedesktop.org On Thu, Jul 04, 2013 at 08:17:09PM +0200, Daniel Vetter wrote: > On Thu, Jul 04, 2013 at 11:02:06AM -0700, Ben Widawsky wrote: > > DRI clients really should be using MOCS to get fine grained streaming > > cache controls. With that note, I *hope* that this patch doesn't improve > > performance overwhelmingly, because if it does - it means there is a > > problem elsewhere. > > > > In any case, the kernel, and old userspace should get some benefit from > > this, so let's do it. eLLC is always a good default, and really not > > using it is the special case for MOCS. > > > > References: http://www.intel.com/newsroom/kits/restricted/ha$well!/pdfs/4th_Gen_Intel_Core_PressBriefing_5-29.pdf (page 57) > > > > Signed-off-by: Ben Widawsky > > Iris is the marketing name and likely to stick around for a bit (like HD > Graphics), I'd vote to use the codename for this thing here, i.e. crw. > -Daniel > I think we've agreed on IRC to leave this as is? -- Ben Widawsky, Intel Open Source Technology Center