From mboxrd@z Thu Jan 1 00:00:00 1970 From: oscar.mateo@intel.com Subject: [PATCH 37/50] drm/i915/bdw: Don't write PDP in the legacy way when using LRCs Date: Fri, 9 May 2014 13:09:07 +0100 Message-ID: <1399637360-4277-38-git-send-email-oscar.mateo@intel.com> References: <1399637360-4277-1-git-send-email-oscar.mateo@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTP id A77C06EF8C for ; Fri, 9 May 2014 05:15:07 -0700 (PDT) In-Reply-To: <1399637360-4277-1-git-send-email-oscar.mateo@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org From: Oscar Mateo This is mostly for correctness so that we know we are running the LR context correctly (this is, the PDPs are contained inside the context object). Signed-off-by: Oscar Mateo --- drivers/gpu/drm/i915/i915_gem_gtt.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index a0993c0..de4a982 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -240,11 +240,15 @@ static int gen8_mm_switch(struct i915_hw_ppgtt *ppgtt, struct intel_engine *ring, bool synchronous) { + struct drm_i915_private *dev_priv = ring->dev->dev_private; int i, ret; /* bit of a hack to find the actual last used pd */ int used_pd = ppgtt->num_pd_entries / GEN8_PDES_PER_PAGE; + if (dev_priv->lrc_enabled) + return 0; + for (i = used_pd - 1; i >= 0; i--) { dma_addr_t addr = ppgtt->pd_dma_addr[i]; ret = gen8_write_pdp(ring, i, addr, synchronous); -- 1.9.0