From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755188AbcCBAky (ORCPT ); Tue, 1 Mar 2016 19:40:54 -0500 Received: from mail177-1.suw61.mandrillapp.com ([198.2.177.1]:27939 "EHLO mail177-1.suw61.mandrillapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755355AbcCAX47 convert rfc822-to-8bit (ORCPT ); Tue, 1 Mar 2016 18:56:59 -0500 From: Greg Kroah-Hartman Subject: [PATCH 4.4 213/342] drm: add helper to check for wc memory support X-Mailer: git-send-email 2.7.2 To: Cc: Greg Kroah-Hartman , , =?utf-8?Q?Christian=20K=C3=B6nig?= , =?utf-8?Q?Michel=20D=C3=A4nzer?= , Dave Airlie , Oded Gabbay , Alex Deucher Message-Id: <20160301234534.811665658@linuxfoundation.org> In-Reply-To: <20160301234527.990448862@linuxfoundation.org> References: <20160301234527.990448862@linuxfoundation.org> X-Report-Abuse: Please forward a copy of this message, including all headers, to abuse@mandrill.com X-Report-Abuse: You can also report abuse here: http://mandrillapp.com/contact/abuse?id=30481620.322aa3a08f26490bb5790a43198bff5b X-Mandrill-User: md_30481620 Date: Tue, 01 Mar 2016 23:54:55 +0000 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 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ 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 Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman diff --git a/include/drm/drm_cache.h b/include/drm/drm_cache.h index 7bfb063029d8..461a0558bca4 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