From patchwork Tue Mar 7 19:42:08 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= X-Patchwork-Id: 9609721 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 73C9A6016C for ; Tue, 7 Mar 2017 19:42:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 422E028511 for ; Tue, 7 Mar 2017 19:42:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3724428518; Tue, 7 Mar 2017 19:42:25 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id F024C28511 for ; Tue, 7 Mar 2017 19:42:24 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C5E9D6E7AE; Tue, 7 Mar 2017 19:42:24 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id A9DA86E7AE for ; Tue, 7 Mar 2017 19:42:22 +0000 (UTC) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 Mar 2017 11:42:22 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos; i="5.36,258,1486454400"; d="scan'208"; a="1139170207" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.174]) by fmsmga002.fm.intel.com with SMTP; 07 Mar 2017 11:42:20 -0800 Received: by stinkbox (sSMTP sendmail emulation); Tue, 07 Mar 2017 21:42:19 +0200 From: ville.syrjala@linux.intel.com To: intel-gfx@lists.freedesktop.org Date: Tue, 7 Mar 2017 21:42:08 +0200 Message-Id: <20170307194210.13400-4-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 2.10.2 In-Reply-To: <20170307194210.13400-1-ville.syrjala@linux.intel.com> References: <20170307194210.13400-1-ville.syrjala@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 3/5] drm/i915: Avoid div-by-zero when computing aux_stride w/o an aux plane X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: Ville Syrjälä To make life easier let's allow skl_plane_stride() to be called for the AUX surface even when there is no AUX surface. Avoids special cases in the callers. Signed-off-by: Ville Syrjälä Reviewed-by: Imre Deak --- drivers/gpu/drm/i915/intel_display.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index f0da21327198..ffa1041e10b9 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3218,7 +3218,12 @@ static void skl_detach_scalers(struct intel_crtc *intel_crtc) u32 skl_plane_stride(const struct drm_framebuffer *fb, int plane, unsigned int rotation) { - u32 stride = intel_fb_pitch(fb, plane, rotation); + u32 stride; + + if (plane >= fb->format->num_planes) + return 0; + + stride = intel_fb_pitch(fb, plane, rotation); /* * The stride is either expressed as a multiple of 64 bytes chunks for