From patchwork Wed Dec 2 12:15:17 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zanoni, Paulo R" X-Patchwork-Id: 7745381 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 699419F350 for ; Wed, 2 Dec 2015 12:15:37 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CCB5A20631 for ; Wed, 2 Dec 2015 12:15:35 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id EC064205B7 for ; Wed, 2 Dec 2015 12:15:34 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 761B76E280; Wed, 2 Dec 2015 04:15:34 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id 3E71E6E280 for ; Wed, 2 Dec 2015 04:15:34 -0800 (PST) Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga102.jf.intel.com with ESMTP; 02 Dec 2015 04:15:34 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,373,1444719600"; d="scan'208";a="6128616" Received: from cmmckee-mobl1.amr.corp.intel.com (HELO panetone.amr.corp.intel.com) ([10.254.186.141]) by fmsmga004.fm.intel.com with ESMTP; 02 Dec 2015 04:15:33 -0800 From: Paulo Zanoni To: intel-gfx@lists.freedesktop.org Date: Wed, 2 Dec 2015 10:15:17 -0200 Message-Id: <1449058527-13425-2-git-send-email-paulo.r.zanoni@intel.com> X-Mailer: git-send-email 2.6.2 In-Reply-To: <1449058527-13425-1-git-send-email-paulo.r.zanoni@intel.com> References: <1449058527-13425-1-git-send-email-paulo.r.zanoni@intel.com> Subject: [Intel-gfx] [PATCH 01/11] drm/i915: fix the CFB size check 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: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP In function find_compression_threshold() we try to over-allocate CFB space in order to reduce reallocations and fragmentation, and we're not considering that at the CFB size check. Consider it. There is also a longer-term plan to kill dev_priv->fbc.uncompressed_size, but this will come later. v2: Use drm_mm_node_allocated() (Chris). Reviewed-by: Chris Wilson Signed-off-by: Paulo Zanoni --- drivers/gpu/drm/i915/intel_fbc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c index 11fc528..9eb94c0 100644 --- a/drivers/gpu/drm/i915/intel_fbc.c +++ b/drivers/gpu/drm/i915/intel_fbc.c @@ -720,7 +720,8 @@ static int intel_fbc_setup_cfb(struct intel_crtc *crtc) size = intel_fbc_calculate_cfb_size(crtc); cpp = drm_format_plane_cpp(fb->pixel_format, 0); - if (size <= dev_priv->fbc.uncompressed_size) + if (drm_mm_node_allocated(&dev_priv->fbc.compressed_fb) && + size <= dev_priv->fbc.compressed_fb.size * dev_priv->fbc.threshold) return 0; /* Release any current block */