From mboxrd@z Thu Jan 1 00:00:00 1970 From: Imre Deak Subject: [PATCH v2 22/25] drm/i915: vlv: increase timeout when forcing on the GFX clock Date: Mon, 14 Apr 2014 20:24:43 +0300 Message-ID: <1397496286-29649-23-git-send-email-imre.deak@intel.com> References: <1397496286-29649-1-git-send-email-imre.deak@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id E3D316E80E for ; Mon, 14 Apr 2014 10:25:40 -0700 (PDT) In-Reply-To: <1397496286-29649-1-git-send-email-imre.deak@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org I've seen latencies up to 15msec, so increase the timeout to 20msec. Signed-off-by: Imre Deak --- drivers/gpu/drm/i915/i915_drv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 0609f77..845e1e1 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -916,7 +916,7 @@ int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool force_on) #define COND (I915_READ(VLV_GTLC_SURVIVABILITY_REG) & VLV_GFX_CLK_STATUS_BIT) /* Wait for a previous force on/off to settle */ if (force_on) { - err = wait_for(!COND, 5); + err = wait_for(!COND, 20); if (err) { DRM_ERROR("timeout waiting for GFX clock force-off (%08x)\n", I915_READ(VLV_GTLC_SURVIVABILITY_REG)); @@ -933,7 +933,7 @@ int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool force_on) if (!force_on) return 0; - err = wait_for(COND, 5); + err = wait_for(COND, 20); if (err) DRM_ERROR("timeout waiting for GFX clock force-on (%08x)\n", I915_READ(VLV_GTLC_SURVIVABILITY_REG)); -- 1.8.4