From patchwork Tue Apr 9 01:43:52 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Widawsky X-Patchwork-Id: 2412651 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by patchwork1.kernel.org (Postfix) with ESMTP id 6074A3FD1A for ; Tue, 9 Apr 2013 01:44:31 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4A417E5D72 for ; Mon, 8 Apr 2013 18:44:31 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from shiva.localdomain (unknown [209.20.75.48]) by gabe.freedesktop.org (Postfix) with ESMTP id 4E0FAE5D50 for ; Mon, 8 Apr 2013 18:41:54 -0700 (PDT) Received: by shiva.localdomain (Postfix, from userid 1005) id 1320B88626; Tue, 9 Apr 2013 01:41:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on shiva.chad-versace.us X-Spam-Level: X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00, URIBL_BLOCKED autolearn=unavailable version=3.3.2 Received: from lundgren.kumite (c-24-21-100-90.hsd1.or.comcast.net [24.21.100.90]) by shiva.localdomain (Postfix) with ESMTPSA id 9A3F5884B0; Tue, 9 Apr 2013 01:41:52 +0000 (UTC) From: Ben Widawsky To: intel-gfx@lists.freedesktop.org Date: Mon, 8 Apr 2013 18:43:52 -0700 Message-Id: <1365471836-28304-6-git-send-email-ben@bwidawsk.net> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1365471836-28304-1-git-send-email-ben@bwidawsk.net> References: <1365471836-28304-1-git-send-email-ben@bwidawsk.net> Cc: Ben Widawsky Subject: [Intel-gfx] [PATCH 06/10] drm/i915: Conditionally carve out GGTT PDE X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org It only works that way on GEN6 and GEN7. Let's not assume GENn will be the same. Signed-off-by: Ben Widawsky --- drivers/gpu/drm/i915/i915_gem_gtt.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 0f214fb..b4ba488 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -623,9 +623,12 @@ void i915_gem_init_global_gtt(struct drm_device *dev) if (intel_enable_ppgtt(dev) && HAS_ALIASING_PPGTT(dev)) { int ret; - /* PPGTT pdes are stolen from global gtt ptes, so shrink the - * aperture accordingly when using aliasing ppgtt. */ - gtt_size -= I915_PPGTT_PD_ENTRIES*PAGE_SIZE; + + if (INTEL_INFO(dev)->gen <= 7) { + /* PPGTT pdes are stolen from global gtt ptes, so shrink the + * aperture accordingly when using aliasing ppgtt. */ + gtt_size -= I915_PPGTT_PD_ENTRIES*PAGE_SIZE; + } i915_gem_setup_global_gtt(dev, 0, mappable_size, gtt_size);