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From: Eugeni Dodonov <eugeni.dodonov@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: Eugeni Dodonov <eugeni.dodonov@intel.com>
Subject: [PATCH 03/10] drm/i915: support Haswell force waking
Date: Mon,  2 Jul 2012 11:51:04 -0300	[thread overview]
Message-ID: <1341240671-5843-4-git-send-email-eugeni.dodonov@intel.com> (raw)
In-Reply-To: <1341240671-5843-1-git-send-email-eugeni.dodonov@intel.com>

There is a different ACK register for force wake on Haswell, so account
for that.

Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
---
 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

  parent reply	other threads:[~2012-07-02 14:49 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-02 14:51 [PATCH 00/10] Haswell force wake/rps v3 Eugeni Dodonov
2012-07-02 14:51 ` [PATCH 01/10] drm/i915: Group the GT routines together in both code and vtable Eugeni Dodonov
2012-07-02 16:41   ` Ben Widawsky
2012-07-02 14:51 ` [PATCH 02/10] drm/i915: Implement w/a for sporadic read failures on waking from rc6 Eugeni Dodonov
2012-07-02 16:46   ` Ben Widawsky
2012-07-02 14:51 ` Eugeni Dodonov [this message]
2012-07-02 16:49   ` [PATCH 03/10] drm/i915: support Haswell force waking Ben Widawsky
2012-07-02 14:51 ` [PATCH 04/10] drm/i915: add RPS configuration for Haswell Eugeni Dodonov
2012-07-02 17:49   ` Ben Widawsky
2012-07-02 20:02     ` Eugeni Dodonov
2012-07-02 21:19       ` Ben Widawsky
2012-07-04 21:34   ` Chris Wilson
2012-07-02 14:51 ` [PATCH 05/10] drm/i915: slightly improve gt enable/disable routines Eugeni Dodonov
2012-07-02 17:51   ` Ben Widawsky
2012-07-02 14:51 ` [PATCH 06/10] drm/i915: enable RC6 by default on Haswell Eugeni Dodonov
2012-07-02 18:11   ` Ben Widawsky
2012-07-02 14:51 ` [PATCH 07/10] drm/i915: disable RC6 when disabling rps Eugeni Dodonov
2012-07-02 18:36   ` Ben Widawsky
2012-07-02 14:51 ` [PATCH 08/10] drm/i915: introduce haswell_init_clock_gating Eugeni Dodonov
2012-07-02 18:39   ` Ben Widawsky
2012-07-03 20:24   ` Daniel Vetter
2012-07-04  0:03     ` Eugeni Dodonov
2012-07-04  7:27       ` Daniel Vetter
2012-07-02 14:51 ` [PATCH 09/10] drm/i915: enable RC6 workaround on Haswell Eugeni Dodonov
2012-07-02 18:40   ` Ben Widawsky
2012-07-02 14:51 ` [PATCH 10/10] drm/i915: move force wake support into intel_pm Eugeni Dodonov
2012-07-02 18:41   ` Ben Widawsky
2012-07-04  7:34     ` Daniel Vetter

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