From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg Kroah-Hartman 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> References: <20170615175426.075744317@linuxfoundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: 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) In-Reply-To: <20170615175426.075744317@linuxfoundation.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: linux-kernel@vger.kernel.org Cc: Zhe Wang , Jani Nikula , Greg Kroah-Hartman , intel-gfx@lists.freedesktop.org, stable@vger.kernel.org, Praveen Paneri , Daniel Vetter List-Id: intel-gfx@lists.freedesktop.org NC4xMS1zdGFibGUgcmV2aWV3IHBhdGNoLiAgSWYgYW55b25lIGhhcyBhbnkgb2JqZWN0aW9ucywg cGxlYXNlIGxldCBtZSBrbm93LgoKLS0tLS0tLS0tLS0tLS0tLS0tCgpGcm9tOiBLYWkgQ2hlbiA8 a2FpLmNoZW5AaW50ZWwuY29tPgoKY29tbWl0IDRjNGM1NjU1MTNjY2ExYzUzYTEyOTU2NjQwYjU5 MTU3Mjc0MzE2MzEgdXBzdHJlYW0uCgpUaGUgZGVjb3VwbGVkIE1NSU8gZmVhdHVyZSBkb2Vzbid0 IHdvcmsgYXMgaW50ZW5kZWQgYnkgSFcgdGVhbS4gRW5hYmxpbmcKaXQgd2l0aCBmb3JjZXdha2Ug d2lsbCBvbmx5IG1ha2UgZGVidWdnaW5nIGVmZm9ydHMgbW9yZSBkaWZmaWN1bHQsIHNvCmxldCdz IGRpc2FibGUgaXQuCgpGaXhlczogODVlZTE3ZWJlZWRkICgiZHJtL2k5MTUvYnh0OiBCcm94dG9u IGRlY291cGxlZCBNTUlPIikKQ2M6IFpoZSBXYW5nIDx6aGUxLndhbmdAaW50ZWwuY29tPgpDYzog UHJhdmVlbiBQYW5lcmkgPHByYXZlZW4ucGFuZXJpQGludGVsLmNvbT4KQ2M6IFR2cnRrbyBVcnN1 bGluIDx0dnJ0a28udXJzdWxpbkBpbnRlbC5jb20+CkNjOiBEYW5pZWwgVmV0dGVyIDxkYW5pZWwu dmV0dGVyQGludGVsLmNvbT4KQ2M6IEphbmkgTmlrdWxhIDxqYW5pLm5pa3VsYUBsaW51eC5pbnRl bC5jb20+CkNjOiBpbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnClNpZ25lZC1vZmYtYnk6 IEthaSBDaGVuIDxrYWkuY2hlbkBpbnRlbC5jb20+ClJldmlld2VkLWJ5OiBUdnJ0a28gVXJzdWxp biA8dHZydGtvLnVyc3VsaW5AaW50ZWwuY29tPgpTaWduZWQtb2ZmLWJ5OiBKYW5pIE5pa3VsYSA8 amFuaS5uaWt1bGFAaW50ZWwuY29tPgpMaW5rOiBodHRwOi8vcGF0Y2h3b3JrLmZyZWVkZXNrdG9w Lm9yZy9wYXRjaC9tc2dpZC8yMDE3MDUyMzIxNTgxMi4xODMyOC0yLWthaS5jaGVuQGludGVsLmNv bQooY2hlcnJ5IHBpY2tlZCBmcm9tIGNvbW1pdCAwMDUxYzEwYWNhYmI2MzFjZmQ0MzllYWU3MzI4 OWU2ZTRjMzliMmI3KQpTaWduZWQtb2ZmLWJ5OiBKYW5pIE5pa3VsYSA8amFuaS5uaWt1bGFAaW50 ZWwuY29tPgpTaWduZWQtb2ZmLWJ5OiBHcmVnIEtyb2FoLUhhcnRtYW4gPGdyZWdraEBsaW51eGZv dW5kYXRpb24ub3JnPgoKLS0tCiBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X3BjaS5jIHwgICAg MSAtCiAxIGZpbGUgY2hhbmdlZCwgMSBkZWxldGlvbigtKQoKLS0tIGEvZHJpdmVycy9ncHUvZHJt L2k5MTUvaTkxNV9wY2kuYworKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X3BjaS5jCkBA IC0zODksNyArMzg5LDYgQEAgc3RhdGljIGNvbnN0IHN0cnVjdCBpbnRlbF9kZXZpY2VfaW5mbyBp bgogCS5oYXNfaHdfY29udGV4dHMgPSAxLCBcCiAJLmhhc19sb2dpY2FsX3JpbmdfY29udGV4dHMg PSAxLCBcCiAJLmhhc19ndWMgPSAxLCBcCi0JLmhhc19kZWNvdXBsZWRfbW1pbyA9IDEsIFwKIAku aGFzX2FsaWFzaW5nX3BwZ3R0ID0gMSwgXAogCS5oYXNfZnVsbF9wcGd0dCA9IDEsIFwKIAkuaGFz X2Z1bGxfNDhiaXRfcHBndHQgPSAxLCBcCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMu ZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlz dGluZm8vaW50ZWwtZ2Z4Cg== 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, \