From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754032AbdFOSBO (ORCPT ); Thu, 15 Jun 2017 14:01:14 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:55366 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752603AbdFOSBL (ORCPT ); Thu, 15 Jun 2017 14:01:11 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Zhe Wang , Praveen Paneri , Tvrtko Ursulin , Daniel Vetter , Jani Nikula , intel-gfx@lists.freedesktop.org, Kai Chen , Jani Nikula Subject: [PATCH 4.11 13/13] drm/i915: Disable decoupled MMIO 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 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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, \