From patchwork Tue Oct 27 16:50:19 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: 7498661 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 490319F750 for ; Tue, 27 Oct 2015 16:52:01 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8224B208CB for ; Tue, 27 Oct 2015 16:52:00 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 9F94B2086C for ; Tue, 27 Oct 2015 16:51:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EA0C66EB16; Tue, 27 Oct 2015 09:51:56 -0700 (PDT) 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 ESMTP id 3D1C16EB10 for ; Tue, 27 Oct 2015 09:51:04 -0700 (PDT) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP; 27 Oct 2015 09:51:03 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,205,1444719600"; d="scan'208";a="836288345" Received: from jmcantor-mobl.amr.corp.intel.com (HELO panetone.amr.corp.intel.com) ([10.252.139.141]) by orsmga002.jf.intel.com with ESMTP; 27 Oct 2015 09:51:02 -0700 From: Paulo Zanoni To: intel-gfx@lists.freedesktop.org Date: Tue, 27 Oct 2015 14:50:19 -0200 Message-Id: <1445964628-30226-18-git-send-email-paulo.r.zanoni@intel.com> X-Mailer: git-send-email 2.6.1 In-Reply-To: <1445964628-30226-1-git-send-email-paulo.r.zanoni@intel.com> References: <1445964628-30226-1-git-send-email-paulo.r.zanoni@intel.com> Subject: [Intel-gfx] [PATCH 17/26] 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, 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 reudce 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. 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 17f098d..29d61d1 100644 --- a/drivers/gpu/drm/i915/intel_fbc.c +++ b/drivers/gpu/drm/i915/intel_fbc.c @@ -743,7 +743,8 @@ 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 (dev_priv->fbc.compressed_fb.allocated && + size <= dev_priv->fbc.compressed_fb.size * dev_priv->fbc.threshold) return 0; /* Release any current block */