From patchwork Mon Mar 31 15:09:49 2014 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: 3915411 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id F3FDBBF540 for ; Mon, 31 Mar 2014 15:11:20 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 26A7A20364 for ; Mon, 31 Mar 2014 15:11:20 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 178B4201F7 for ; Mon, 31 Mar 2014 15:11:19 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9A39A6E311; Mon, 31 Mar 2014 08:11:18 -0700 (PDT) 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 E4ED06E311 for ; Mon, 31 Mar 2014 08:11:17 -0700 (PDT) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP; 31 Mar 2014 08:09:52 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,766,1389772800"; d="scan'208";a="511054241" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.65]) by fmsmga002.fm.intel.com with SMTP; 31 Mar 2014 08:09:50 -0700 Received: by stinkbox (sSMTP sendmail emulation); Mon, 31 Mar 2014 18:09:49 +0300 From: ville.syrjala@linux.intel.com To: intel-gfx@lists.freedesktop.org Date: Mon, 31 Mar 2014 18:09:49 +0300 Message-Id: <1396278589-27882-1-git-send-email-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 1.8.3.2 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH] drm/i915: Make contexts non-snooped on non-LLC platforms X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.15 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-Spam-Status: No, score=-4.8 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 From: Ville Syrjälä We don't do CPU access to GPU contexts so making the GPU access snoop the CPU caches seems silly, and potentially expensive. Signed-off-by: Ville Syrjälä --- drivers/gpu/drm/i915/i915_gem_context.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index 6043062..746fb23 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -240,7 +240,7 @@ __create_hw_context(struct drm_device *dev, return ERR_PTR(-ENOMEM); } - if (INTEL_INFO(dev)->gen >= 7) { + if (INTEL_INFO(dev)->gen >= 7 && HAS_LLC(dev)) { ret = i915_gem_object_set_cache_level(ctx->obj, I915_CACHE_L3_LLC); /* Failure shouldn't ever happen this early */