From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eugeni Dodonov Subject: [PATCH 03/10] drm/i915: support Haswell force waking Date: Mon, 2 Jul 2012 11:51:04 -0300 Message-ID: <1341240671-5843-4-git-send-email-eugeni.dodonov@intel.com> References: <1341240671-5843-1-git-send-email-eugeni.dodonov@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id EAE939F3AA for ; Mon, 2 Jul 2012 07:49:06 -0700 (PDT) In-Reply-To: <1341240671-5843-1-git-send-email-eugeni.dodonov@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: intel-gfx@lists.freedesktop.org Cc: Eugeni Dodonov List-Id: intel-gfx@lists.freedesktop.org There is a different ACK register for force wake on Haswell, so account for that. Signed-off-by: Eugeni Dodonov --- drivers/gpu/drm/i915/i915_drv.c | 22 ++++++++++++++++++---- drivers/gpu/drm/i915/i915_reg.h | 1 + 2 files changed, 19 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index a4ea4a9..3ac414f 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -451,12 +451,19 @@ static void __gen6_gt_wait_for_thread_c0(struct drm_i915_private *dev_priv) static void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv) { - if (wait_for_atomic_us((I915_READ_NOTRACE(FORCEWAKE_ACK) & 1) == 0, 500)) + u32 forcewake_ack; + + if (IS_HASWELL(dev_priv->dev)) + forcewake_ack = FORCEWAKE_ACK_HSW; + else + forcewake_ack = FORCEWAKE_ACK; + + if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1) == 0, 500)) DRM_ERROR("Force wake wait timed out\n"); I915_WRITE_NOTRACE(FORCEWAKE, 1); - if (wait_for_atomic_us((I915_READ_NOTRACE(FORCEWAKE_ACK) & 1), 500)) + if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1), 500)) DRM_ERROR("Force wake wait timed out\n"); __gen6_gt_wait_for_thread_c0(dev_priv); @@ -464,12 +471,19 @@ static void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv) static void __gen6_gt_force_wake_mt_get(struct drm_i915_private *dev_priv) { - if (wait_for_atomic_us((I915_READ_NOTRACE(FORCEWAKE_MT_ACK) & 1) == 0, 500)) + u32 forcewake_ack; + + if (IS_HASWELL(dev_priv->dev)) + forcewake_ack = FORCEWAKE_ACK_HSW; + else + forcewake_ack = FORCEWAKE_MT_ACK; + + if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1) == 0, 500)) DRM_ERROR("Force wake wait timed out\n"); I915_WRITE_NOTRACE(FORCEWAKE_MT, _MASKED_BIT_ENABLE(1)); - if (wait_for_atomic_us((I915_READ_NOTRACE(FORCEWAKE_MT_ACK) & 1), 500)) + if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1), 500)) DRM_ERROR("Force wake wait timed out\n"); __gen6_gt_wait_for_thread_c0(dev_priv); diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 20f7f0d..f17de3d 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4095,6 +4095,7 @@ #define FORCEWAKE 0xA18C #define FORCEWAKE_VLV 0x1300b0 #define FORCEWAKE_ACK_VLV 0x1300b4 +#define FORCEWAKE_ACK_HSW 0x130044 #define FORCEWAKE_ACK 0x130090 #define FORCEWAKE_MT 0xa188 /* multi-threaded */ #define FORCEWAKE_MT_ACK 0x130040 -- 1.7.11.1