From patchwork Tue Aug 5 14:51:12 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rodrigo Vivi X-Patchwork-Id: 4682391 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 213669F402 for ; Tue, 5 Aug 2014 21:50:54 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 68C63201ED for ; Tue, 5 Aug 2014 21:50:53 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id E381A201D3 for ; Tue, 5 Aug 2014 21:50:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 755EC6E509; Tue, 5 Aug 2014 14:50:51 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id 028836E21A for ; Tue, 5 Aug 2014 14:50:49 -0700 (PDT) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP; 05 Aug 2014 14:50:49 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,807,1400050800"; d="scan'208";a="554240285" Received: from di-604.jf.intel.com (HELO rdvivi-hillsboro.jf.intel.com) ([10.7.196.77]) by orsmga001.jf.intel.com with ESMTP; 05 Aug 2014 14:50:25 -0700 From: Rodrigo Vivi To: intel-gfx@lists.freedesktop.org Date: Tue, 5 Aug 2014 07:51:12 -0700 Message-Id: <1407250286-1801-2-git-send-email-rodrigo.vivi@intel.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1407250286-1801-1-git-send-email-rodrigo.vivi@intel.com> References: <1407250286-1801-1-git-send-email-rodrigo.vivi@intel.com> Cc: Deepak S , Paulo Zanoni , Rodrigo Vivi Subject: [Intel-gfx] [PATCH 01/15] drm/i915: Bring UP Power Wells before disabling RC6. 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: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-3.3 required=5.0 tests=BAYES_00, DATE_IN_PAST_06_12, 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: Deepak S We need do forcewake before Disabling RC6, This is what the BIOS expects while going into suspend. v2: updated commit message. (Daniel) Reviewer: Paulo Zanoni Cc: Paulo Zanoni Signed-off-by: Deepak S Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/intel_pm.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 3f88f29..d3085b7 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3407,8 +3407,14 @@ static void valleyview_disable_rps(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; + /* we're doing forcewake before Disabling RC6, + * This what the BIOS expects when going into suspend */ + gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL); + I915_WRITE(GEN6_RC_CONTROL, 0); + gen6_gt_force_wake_put(dev_priv, FORCEWAKE_ALL); + gen6_disable_rps_interrupts(dev); }