From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Goel, Akash" Subject: Re: [PATCH v2 3/3] drm/i915/vlv: Modified the programming of 2 regs in Ring initialisation Date: Fri, 7 Feb 2014 14:34:48 +0000 Message-ID: <8BF5CF93467D8C498F250C96583BC09CC6CE74@BGSMSX103.gar.corp.intel.com> References: <1391775732-7431-1-git-send-email-akash.goel@intel.com> <1391775732-7431-4-git-send-email-akash.goel@intel.com> <20140207123128.GJ5360@nuc-i3427.alporthouse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id 71D27FA607 for ; Fri, 7 Feb 2014 06:34:51 -0800 (PST) In-Reply-To: <20140207123128.GJ5360@nuc-i3427.alporthouse.com> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org To: Chris Wilson Cc: "intel-gfx@lists.freedesktop.org" List-Id: intel-gfx@lists.freedesktop.org > 1. GFX_MODE_GEN7 (Enabling TLB invalidate) >> The changelog needs to explain why. According to the spec this is a pessimisation. Ok, Will look into this. > 2. MI_MODE (Enabling MI Flush) >> And this is out-of-date. Doesn't describe the actual change nor why. Sorry I did not update the commit message properly. Actually I have reverted the change, enabling of MI_FLUSH, in this new version of the patch, as you also said this is obsolete. Best Regards Akash -----Original Message----- From: Chris Wilson [mailto:chris@chris-wilson.co.uk] Sent: Friday, February 07, 2014 6:01 PM To: Goel, Akash Cc: intel-gfx@lists.freedesktop.org Subject: Re: [Intel-gfx] [PATCH v2 3/3] drm/i915/vlv: Modified the programming of 2 regs in Ring initialisation On Fri, Feb 07, 2014 at 05:52:12PM +0530, akash.goel@intel.com wrote: > From: Akash Goel > > Modified programming of following 2 regs in Render ring initialisation fn. > 1. GFX_MODE_GEN7 (Enabling TLB invalidate) The changelog needs to explain why. According to the spec this is a pessimisation. -Chris -- Chris Wilson, Intel Open Source Technology Centre