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-rw-r--r--drivers/gpu/drm/i915/i915_drv.c22
-rw-r--r--drivers/gpu/drm/i915/i915_reg.h1
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 a4ea4a9fc42..3ac414ff7f8 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 8b400e96de1..40000841b39 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4071,6 +4071,7 @@
#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