From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754062AbcCHAjm (ORCPT ); Mon, 7 Mar 2016 19:39:42 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:38748 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753987AbcCGWwi (ORCPT ); Mon, 7 Mar 2016 17:52:38 -0500 From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Dave Airlie , Oded Gabbay , Alex Deucher , Kamal Mostafa Subject: [PATCH 4.2.y-ckt 061/273] drm: add helper to check for wc memory support Date: Mon, 7 Mar 2016 14:47:32 -0800 Message-Id: <1457391064-6660-62-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1457391064-6660-1-git-send-email-kamal@canonical.com> References: <1457391064-6660-1-git-send-email-kamal@canonical.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Extended-Stable: 4.2 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.2.8-ckt5 -stable review patch. If anyone has any objections, please let me know. ---8<------------------------------------------------------------ From: Dave Airlie commit 4b0e4e4af6c6dc8354dcb72182d52c1bc55f12fc upstream. Reviewed-by: Christian König Reviewed-by: Michel Dänzer Signed-off-by: Dave Airlie Signed-off-by: Oded Gabbay Signed-off-by: Alex Deucher Signed-off-by: Kamal Mostafa --- include/drm/drm_cache.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/drm/drm_cache.h b/include/drm/drm_cache.h index 7bfb063..461a055 100644 --- a/include/drm/drm_cache.h +++ b/include/drm/drm_cache.h @@ -35,4 +35,13 @@ void drm_clflush_pages(struct page *pages[], unsigned long num_pages); +static inline bool drm_arch_can_wc_memory(void) +{ +#if defined(CONFIG_PPC) && !defined(CONFIG_NOT_COHERENT_CACHE) + return false; +#else + return true; +#endif +} + #endif -- 2.7.0