From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Widawsky Subject: Re: [PATCH 02/12] drm/i915: Provide PDP updates via MMIO Date: Mon, 25 Nov 2013 10:00:36 -0800 Message-ID: <20131125180035.GA8797@bwidawsk.net> References: <1385402083-8719-1-git-send-email-benjamin.widawsky@intel.com> <1385402083-8719-3-git-send-email-benjamin.widawsky@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail.bwidawsk.net (bwidawsk.net [166.78.191.112]) by gabe.freedesktop.org (Postfix) with ESMTP id AD632FAD97 for ; Mon, 25 Nov 2013 10:00:39 -0800 (PST) Content-Disposition: inline In-Reply-To: <1385402083-8719-3-git-send-email-benjamin.widawsky@intel.com> 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: Ben Widawsky Cc: Intel GFX List-Id: intel-gfx@lists.freedesktop.org On Mon, Nov 25, 2013 at 09:54:33AM -0800, Ben Widawsky wrote: > The initial implementation of this function used MMIO to write the PDPs. > Upon review it was determined (correctly) that the docs say to use LRI. > The issue is there are times where we want to do a synchronous write > (GPU reset). > > I've tested this, and it works. I've verified with as many people as > possible that it should work. > > This should fix the failing reset problems. > > Signed-off-by: Ben Widawsky One addition to the commit message. I haven't tried this patch alone for the reset fix. I have a bunch of other stuff on top. I can try to isolate if this was all that was required ASAP. [snip] -- Ben Widawsky, Intel Open Source Technology Center