From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail333.us4.mandrillapp.com ([205.201.137.77]:59643 "EHLO mail333.us4.mandrillapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751097AbcCAUBE convert rfc822-to-8bit (ORCPT ); Tue, 1 Mar 2016 15:01:04 -0500 Received: from pmta03.dal05.mailchimp.com (127.0.0.1) by mail333.us4.mandrillapp.com id hqnqg0174nor for ; Tue, 1 Mar 2016 20:01:01 +0000 (envelope-from ) From: Subject: Patch "drm/radeon: mask out WC from BO on unsupported arches" has been added to the 4.4-stable tree To: , , , , Cc: , Message-Id: <1456862454238209@kroah.com> Date: Tue, 01 Mar 2016 20:01:01 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled drm/radeon: mask out WC from BO on unsupported arches to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-radeon-mask-out-wc-from-bo-on-unsupported-arches.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From c5244987394648913ae1a03879c58058a2fc2cee Mon Sep 17 00:00:00 2001 From: Oded Gabbay Date: Sat, 30 Jan 2016 07:59:33 +0200 Subject: drm/radeon: mask out WC from BO on unsupported arches MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Oded Gabbay commit c5244987394648913ae1a03879c58058a2fc2cee upstream. Reviewed-by: Christian König Reviewed-by: Michel Dänzer Signed-off-by: Oded Gabbay Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/radeon/radeon_object.c | 7 +++++++ 1 file changed, 7 insertions(+) --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -33,6 +33,7 @@ #include #include #include +#include #include "radeon.h" #include "radeon_trace.h" @@ -245,6 +246,12 @@ int radeon_bo_create(struct radeon_devic DRM_INFO_ONCE("Please enable CONFIG_MTRR and CONFIG_X86_PAT for " "better performance thanks to write-combining\n"); bo->flags &= ~(RADEON_GEM_GTT_WC | RADEON_GEM_GTT_UC); +#else + /* For architectures that don't support WC memory, + * mask out the WC flag from the BO + */ + if (!drm_arch_can_wc_memory()) + bo->flags &= ~RADEON_GEM_GTT_WC; #endif radeon_ttm_placement_from_domain(bo, domain); Patches currently in stable-queue which might be from oded.gabbay@gmail.com are queue-4.4/drm-radeon-mask-out-wc-from-bo-on-unsupported-arches.patch queue-4.4/drm-add-helper-to-check-for-wc-memory-support.patch