From patchwork Thu May 26 15:29:38 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Kuoppala X-Patchwork-Id: 9137139 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 E96136075C for ; Thu, 26 May 2016 15:30:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DE9C6282F8 for ; Thu, 26 May 2016 15:30:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D3AA5282FB; Thu, 26 May 2016 15:30:12 +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]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A8DCA282F8 for ; Thu, 26 May 2016 15:30:12 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2B4406E919; Thu, 26 May 2016 15:30:05 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTP id 9A3DD6E813 for ; Thu, 26 May 2016 15:29:36 +0000 (UTC) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP; 26 May 2016 08:29:36 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.26,367,1459839600"; d="scan'208";a="985265601" Received: from rosetta.fi.intel.com (HELO rosetta) ([10.237.72.90]) by orsmga002.jf.intel.com with ESMTP; 26 May 2016 08:29:35 -0700 Received: by rosetta (Postfix, from userid 1000) id 4B33280AE2; Thu, 26 May 2016 18:29:48 +0300 (EEST) From: Mika Kuoppala To: intel-gfx@lists.freedesktop.org Date: Thu, 26 May 2016 18:29:38 +0300 Message-Id: <1464276586-17939-16-git-send-email-mika.kuoppala@intel.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1464276586-17939-1-git-send-email-mika.kuoppala@intel.com> References: <1464276586-17939-1-git-send-email-mika.kuoppala@intel.com> Subject: [Intel-gfx] [PATCH 15/23] drm/i915/gen9: Add WaDisableSkipCaching 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-Virus-Scanned: ClamAV using ClamSMTP Make sure that we never enable skip caching on gen9 by accident. References: HSD#2134698 Signed-off-by: Mika Kuoppala --- drivers/gpu/drm/i915/intel_mocs.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_mocs.c b/drivers/gpu/drm/i915/intel_mocs.c index b765c75f3fcd..8f96c40e415c 100644 --- a/drivers/gpu/drm/i915/intel_mocs.c +++ b/drivers/gpu/drm/i915/intel_mocs.c @@ -156,6 +156,16 @@ static bool get_mocs_settings(struct drm_i915_private *dev_priv, "Platform that should have a MOCS table does not.\n"); } + /* WaDisableSkipCaching:skl,bxt,kbl */ + if (IS_GEN9(dev_priv)) { + int i; + + for (i = 0; i < table->size; i++) + if (WARN_ON(table->table[i].l3cc_value & + (L3_ESC(1) || L3_SCC(0x7)))) + return false; + } + return result; }