From patchwork Tue Oct 21 10:48:53 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dheeraj Jamwal X-Patchwork-Id: 5116401 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 7E31B9F349 for ; Tue, 21 Oct 2014 11:26:19 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9FBCC2010F for ; Tue, 21 Oct 2014 11:26:18 +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 C378F200CA for ; Tue, 21 Oct 2014 11:26:17 +0000 (UTC) Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 4DC21BFA; Tue, 21 Oct 2014 11:03:53 +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 39AA0BF0 for ; Tue, 21 Oct 2014 11:03:51 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id E51221FAB2 for ; Tue, 21 Oct 2014 11:03:50 +0000 (UTC) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP; 21 Oct 2014 04:03:50 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,761,1406617200"; d="scan'208";a="617795026" Received: from ubuntu-desktop.png.intel.com ([10.221.122.25]) by fmsmga002.fm.intel.com with ESMTP; 21 Oct 2014 04:03:49 -0700 From: Dheeraj Jamwal To: ltsi-dev@lists.linuxfoundation.org Date: Tue, 21 Oct 2014 18:48:53 +0800 Message-Id: <1413889294-31328-334-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> 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 0333/1094] drm/i915: factor out reset_vblank_counter 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: , MIME-Version: 1.0 Sender: ltsi-dev-bounces@lists.linuxfoundation.org Errors-To: ltsi-dev-bounces@lists.linuxfoundation.org X-Virus-Scanned: ClamAV using ClamSMTP From: Imre Deak We need to do the same for other platforms in upcoming patches. v2: - s/p/pipe (Ville) - Call the new helper with the vbl_lock already held. The part it protects is short, so releasing it between pipes only makes proving correctness more difficult. Signed-off-by: Imre Deak Reviewed-by: Jesse Barnes [danvet: Resolve conflict with Damien's s/p/pipe/ change.] Signed-off-by: Daniel Vetter (cherry picked from commit dd7c0b66e5414c54a9af8f100cc904240bab5102) Signed-off-by: Dheeraj Jamwal --- drivers/gpu/drm/i915/intel_pm.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index a8dbad9..57c7ff6 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5312,6 +5312,13 @@ static void hsw_power_well_post_enable(struct drm_i915_private *dev_priv) } } +static void reset_vblank_counter(struct drm_device *dev, enum pipe pipe) +{ + assert_spin_locked(&dev->vbl_lock); + + dev->vblank[pipe].last = 0; +} + static void hsw_power_well_post_disable(struct drm_i915_private *dev_priv) { struct drm_device *dev = dev_priv->dev; @@ -5328,7 +5335,7 @@ static void hsw_power_well_post_disable(struct drm_i915_private *dev_priv) spin_lock_irqsave(&dev->vbl_lock, irqflags); for_each_pipe(pipe) if (pipe != PIPE_A) - dev->vblank[pipe].last = 0; + reset_vblank_counter(dev, pipe); spin_unlock_irqrestore(&dev->vbl_lock, irqflags); }