From patchwork Tue Oct 21 10:48:06 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dheeraj Jamwal X-Patchwork-Id: 5115841 Return-Path: X-Original-To: patchwork-ltsi-dev@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 3ACB59F349 for ; Tue, 21 Oct 2014 11:21:50 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 133532013A for ; Tue, 21 Oct 2014 11:21:49 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CB4572010F for ; Tue, 21 Oct 2014 11:21:47 +0000 (UTC) Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id E83CCDC3; Tue, 21 Oct 2014 11:03:01 +0000 (UTC) X-Original-To: ltsi-dev@lists.linuxfoundation.org Delivered-To: ltsi-dev@mail.linuxfoundation.org Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 81AE9BDA for ; Tue, 21 Oct 2014 11:02:58 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 27A3F1FAB2 for ; Tue, 21 Oct 2014 11:02:58 +0000 (UTC) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 21 Oct 2014 04:02:52 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,761,1406617200"; d="scan'208";a="617794476" Received: from ubuntu-desktop.png.intel.com ([10.221.122.25]) by fmsmga002.fm.intel.com with ESMTP; 21 Oct 2014 04:02:50 -0700 From: Dheeraj Jamwal To: ltsi-dev@lists.linuxfoundation.org Date: Tue, 21 Oct 2014 18:48:06 +0800 Message-Id: <1413889294-31328-287-git-send-email-dheerajx.s.jamwal@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1413889294-31328-1-git-send-email-dheerajx.s.jamwal@intel.com> References: <1413889294-31328-1-git-send-email-dheerajx.s.jamwal@intel.com> MIME-Version: 1.0 X-Spam-Status: No, score=-5.6 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 Subject: [LTSI-dev] [PATCH 0286/1094] drm/i915: Fix VLV forcewake after reset X-BeenThere: ltsi-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: "A list to discuss patches, development, and other things related to the LTSI project" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: ltsi-dev-bounces@lists.linuxfoundation.org Errors-To: ltsi-dev-bounces@lists.linuxfoundation.org X-Virus-Scanned: ClamAV using ClamSMTP From: Ville Syrjälä Use the render/media specific forcewake counts to properly restore the forcewake status after a GPU reset on VLV. Signed-off-by: Ville Syrjälä Reviewed-by: Deepak S Signed-off-by: Daniel Vetter (cherry picked from commit ee7fa12ce4683e92e3ab0c43c36af5fb5f6b1054) Signed-off-by: Dheeraj Jamwal --- drivers/gpu/drm/i915/intel_uncore.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index e5ee656..ba465f9 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -982,10 +982,22 @@ static int gen6_do_reset(struct drm_device *dev) intel_uncore_forcewake_reset(dev); /* If reset with a user forcewake, try to restore, otherwise turn it off */ - if (dev_priv->uncore.forcewake_count) - dev_priv->uncore.funcs.force_wake_get(dev_priv, FORCEWAKE_ALL); - else - dev_priv->uncore.funcs.force_wake_put(dev_priv, FORCEWAKE_ALL); + if (IS_VALLEYVIEW(dev)) { + if (dev_priv->uncore.fw_rendercount) + dev_priv->uncore.funcs.force_wake_get(dev_priv, FORCEWAKE_RENDER); + else + dev_priv->uncore.funcs.force_wake_put(dev_priv, FORCEWAKE_RENDER); + + if (dev_priv->uncore.fw_mediacount) + dev_priv->uncore.funcs.force_wake_get(dev_priv, FORCEWAKE_MEDIA); + else + dev_priv->uncore.funcs.force_wake_put(dev_priv, FORCEWAKE_MEDIA); + } else { + if (dev_priv->uncore.forcewake_count) + dev_priv->uncore.funcs.force_wake_get(dev_priv, FORCEWAKE_ALL); + else + dev_priv->uncore.funcs.force_wake_put(dev_priv, FORCEWAKE_ALL); + } /* Restore fifo count */ dev_priv->uncore.fifo_count = __raw_i915_read32(dev_priv, GTFIFOCTL) & GT_FIFO_FREE_ENTRIES_MASK;