From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paulo Zanoni Subject: [PATCH 08/11] drm/i915: call assert_device_not_suspended at gen6_force_wake_work Date: Fri, 21 Feb 2014 13:52:25 -0300 Message-ID: <1393001548-2883-9-git-send-email-przanoni@gmail.com> References: <1393001548-2883-1-git-send-email-przanoni@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-yk0-f171.google.com (mail-yk0-f171.google.com [209.85.160.171]) by gabe.freedesktop.org (Postfix) with ESMTP id 0753DFB573 for ; Fri, 21 Feb 2014 08:53:05 -0800 (PST) Received: by mail-yk0-f171.google.com with SMTP id q9so6538991ykb.2 for ; Fri, 21 Feb 2014 08:53:05 -0800 (PST) In-Reply-To: <1393001548-2883-1-git-send-email-przanoni@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org To: intel-gfx@lists.freedesktop.org Cc: Paulo Zanoni List-Id: intel-gfx@lists.freedesktop.org From: Paulo Zanoni Because we shouldn't be runtime suspended when forcewake is supposed to be enabled. This commit will trigger the WARNs because we currently have a bug with this. The next patches should fix the bug. Signed-off-by: Paulo Zanoni --- drivers/gpu/drm/i915/intel_uncore.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 1f7226f..212de36 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -40,6 +40,12 @@ #define __raw_posting_read(dev_priv__, reg__) (void)__raw_i915_read32(dev_priv__, reg__) +static void +assert_device_not_suspended(struct drm_i915_private *dev_priv) +{ + WARN(HAS_RUNTIME_PM(dev_priv->dev) && dev_priv->pm.suspended, + "Device suspended\n"); +} static void __gen6_gt_wait_for_thread_c0(struct drm_i915_private *dev_priv) { @@ -295,6 +301,8 @@ static void gen6_force_wake_work(struct work_struct *work) container_of(work, typeof(*dev_priv), uncore.force_wake_work.work); unsigned long irqflags; + assert_device_not_suspended(dev_priv); + spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); if (--dev_priv->uncore.forcewake_count == 0) dev_priv->uncore.funcs.force_wake_put(dev_priv, FORCEWAKE_ALL); @@ -451,13 +459,6 @@ hsw_unclaimed_reg_check(struct drm_i915_private *dev_priv, u32 reg) } } -static void -assert_device_not_suspended(struct drm_i915_private *dev_priv) -{ - WARN(HAS_RUNTIME_PM(dev_priv->dev) && dev_priv->pm.suspended, - "Device suspended\n"); -} - #define REG_READ_HEADER(x) \ unsigned long irqflags; \ u##x val = 0; \ -- 1.8.5.3