From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755041Ab1K2PMB (ORCPT ); Tue, 29 Nov 2011 10:12:01 -0500 Received: from mail-ee0-f46.google.com ([74.125.83.46]:53670 "EHLO mail-ee0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754487Ab1K2PMA (ORCPT ); Tue, 29 Nov 2011 10:12:00 -0500 From: Daniel Vetter To: intel-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Daniel Vetter , stable@kernel.org Subject: [PATCH 2/2] drm/i915: properly clflush pwrites to phys objects Date: Tue, 29 Nov 2011 16:09:29 +0100 Message-Id: <1322579369-26954-2-git-send-email-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 1.7.7.3 In-Reply-To: <1322579369-26954-1-git-send-email-daniel.vetter@ffwll.ch> References: <1322579369-26954-1-git-send-email-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Usually results in (rare) cursor corruptions on platforms requiring physically addressed cursors. Note to the stable team: This requires the drm core patch "drm: add helper to clflush a virtual address range" which creates the helper used here. Tested-and-reported-by: Bruno Prémont Cc: stable@kernel.org Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=35460 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=21442 Signed-Off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_gem.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 39459d2..e395a7d 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4123,6 +4123,7 @@ i915_gem_phys_pwrite(struct drm_device *dev, return -EFAULT; } + drm_clflush_virt_range(vaddr, args->size); intel_gtt_chipset_flush(); return 0; } -- 1.7.7.3