From patchwork Tue Apr 23 17:52:18 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rodrigo Vivi X-Patchwork-Id: 2479511 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 183983FD1A for ; Tue, 23 Apr 2013 17:54:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 10879E6270 for ; Tue, 23 Apr 2013 10:54:37 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mail-qc0-f179.google.com (mail-qc0-f179.google.com [209.85.216.179]) by gabe.freedesktop.org (Postfix) with ESMTP id 7AC64E61C9 for ; Tue, 23 Apr 2013 10:52:45 -0700 (PDT) Received: by mail-qc0-f179.google.com with SMTP id v28so363302qcm.38 for ; Tue, 23 Apr 2013 10:52:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:from:to:cc:subject:date:message-id:x-mailer:in-reply-to :references; bh=Fy0qv9rVZFnaHtKdBrfP7AG3VxEmO0NhDUWDXjLA7l8=; b=T0FMpMyDvuyiLYcxDW61LE9n4wTWf9sVOUJqihlsuyjE8Bn7eK1XivhhxaedQZS91v QlIzFXys5LBT4ziE/WH6FfVq5OJZUcOOrYdqGxM9B1tX54L/ugATniETYMznH92RUS0G Abcx4TcBgIftT5Xh/HUOpAHNy75rlJ6c7nKyTQRi3OBmn+L3XqIcOgtfcYPaq5lYpR/O 9oHkk/ESMnThYJKceqjmV/b9aBJH+xucAcW1svoGapeMcBT3p/lgnl8npscPVpQdeEXp Q2jq9QrjtNE0Of31EMgrulf0fTdJPAWNpqtPwGF0YDp4mXUk/wBaum6beq+MSztgrHuK JxRA== X-Received: by 10.229.82.211 with SMTP id c19mr6754835qcl.75.1366739564720; Tue, 23 Apr 2013 10:52:44 -0700 (PDT) Received: from localhost.localdomain ([177.110.77.87]) by mx.google.com with ESMTPS id k8sm32546095qej.2.2013.04.23.10.52.42 (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Tue, 23 Apr 2013 10:52:44 -0700 (PDT) From: Rodrigo Vivi To: intel-gfx@lists.freedesktop.org Date: Tue, 23 Apr 2013 14:52:18 -0300 Message-Id: <1366739541-4565-4-git-send-email-rodrigo.vivi@gmail.com> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1366739541-4565-1-git-send-email-rodrigo.vivi@gmail.com> References: <1366739541-4565-1-git-send-email-rodrigo.vivi@gmail.com> Subject: [Intel-gfx] [PATCH 3/6] drm/i915: IVB FBC WaFbcDisableDpfcClockGating 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 Display register 42020h bit 9 must be set to 1b for the entire time that Frame Buffer Compression is enabled. Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/intel_pm.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 6315627..a33490c 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -242,6 +242,11 @@ static void ironlake_disable_fbc(struct drm_device *dev) dpfc_ctl &= ~DPFC_CTL_EN; I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl); + if (IS_IVYBRIDGE(dev)) + /* WaFbcDisableDpfcClockGating */ + I915_WRITE(ILK_DSPCLK_GATE_D, + ~ILK_DPFCUNIT_CLOCK_GATE_DISABLE); + DRM_DEBUG_KMS("disabled FBC\n"); } } @@ -272,6 +277,9 @@ static void gen7_enable_fbc(struct drm_crtc *crtc, unsigned long interval) /* WaFbcAsynchFlipDisableFbcQueue */ I915_WRITE(ILK_DISPLAY_CHICKEN1, ILK_FBCQ_DIS); + /* WaFbcDisableDpfcClockGating */ + I915_WRITE(ILK_DSPCLK_GATE_D, ILK_DPFCUNIT_CLOCK_GATE_DISABLE); + I915_WRITE(SNB_DPFC_CTL_SA, SNB_CPU_FENCE_ENABLE | obj->fence_reg); I915_WRITE(DPFC_CPU_FENCE_OFFSET, crtc->y);