From patchwork Thu Jun 15 17:54:47 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 9789609 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id ACD1E60384 for ; Thu, 15 Jun 2017 18:01:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A2DAB2866A for ; Thu, 15 Jun 2017 18:01:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 977A12867E; Thu, 15 Jun 2017 18:01:13 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 540212866A for ; Thu, 15 Jun 2017 18:01:13 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 51A386E756; Thu, 15 Jun 2017 18:01:12 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7D5B46E756 for ; Thu, 15 Jun 2017 18:01:11 +0000 (UTC) Received: from localhost (LFbn-1-12060-104.w90-92.abo.wanadoo.fr [90.92.122.104]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id CB9462C; Thu, 15 Jun 2017 18:01:10 +0000 (UTC) From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Date: Thu, 15 Jun 2017 19:54:47 +0200 Message-Id: <20170615175426.707438318@linuxfoundation.org> X-Mailer: git-send-email 2.13.1 In-Reply-To: <20170615175426.075744317@linuxfoundation.org> References: <20170615175426.075744317@linuxfoundation.org> User-Agent: quilt/0.65 MIME-Version: 1.0 Cc: Zhe Wang , Jani Nikula , Greg Kroah-Hartman , intel-gfx@lists.freedesktop.org, stable@vger.kernel.org, Praveen Paneri , Daniel Vetter Subject: [Intel-gfx] [PATCH 4.11 13/13] drm/i915: Disable decoupled MMIO X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP 4.11-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kai Chen commit 4c4c565513cca1c53a12956640b5915727431631 upstream. The decoupled MMIO feature doesn't work as intended by HW team. Enabling it with forcewake will only make debugging efforts more difficult, so let's disable it. Fixes: 85ee17ebeedd ("drm/i915/bxt: Broxton decoupled MMIO") Cc: Zhe Wang Cc: Praveen Paneri Cc: Tvrtko Ursulin Cc: Daniel Vetter Cc: Jani Nikula Cc: intel-gfx@lists.freedesktop.org Signed-off-by: Kai Chen Reviewed-by: Tvrtko Ursulin Signed-off-by: Jani Nikula Link: http://patchwork.freedesktop.org/patch/msgid/20170523215812.18328-2-kai.chen@intel.com (cherry picked from commit 0051c10acabb631cfd439eae73289e6e4c39b2b7) Signed-off-by: Jani Nikula Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/i915/i915_pci.c | 1 - 1 file changed, 1 deletion(-) --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -389,7 +389,6 @@ static const struct intel_device_info in .has_hw_contexts = 1, \ .has_logical_ring_contexts = 1, \ .has_guc = 1, \ - .has_decoupled_mmio = 1, \ .has_aliasing_ppgtt = 1, \ .has_full_ppgtt = 1, \ .has_full_48bit_ppgtt = 1, \